Posts Tagged ‘France’

600 BCE (before the common era) was a very good year for French wine

Tuesday, June 4th, 2013

It’s quite the detective story, almost 20 years to unravel the mystery of where and when viniculture started in France. A Penn Museum June 3 (?), 2013 news release (also found on EurekAlert) provides some fascinating detail about the detective work and about wine,

9,000-year-old ancient Near Eastern ‘wine culture,’ traveling land and sea, reaches southern coastal France, via ancient Etruscans of Italy, in 6th-5th century BCE

Imported ancient Etruscan amphoras and a limestone press platform, discovered at the ancient port site of Lattara in southern France, have provided the earliest known biomolecular archaeological evidence of grape wine and winemaking—and point to the beginnings of a Celtic or Gallic vinicultural industry in France circa 500-400 BCE. Details of the discovery are published as “The Beginning of Viniculture in France” in the June 3, 2013 issue of Proceedings of the National Academy of Sciences (PNAS). Dr. Patrick McGovern, Director of the Biomolecular Archaeology Laboratory at the University of Pennsylvania Museum of Archaeology and Anthropology and author of Ancient Wine: The Search for the Origins of Viniculture (Princeton University Press, 2006) is the lead author on the paper, which was researched and written in collaboration with colleagues from France and the United States.

For Dr. McGovern, much of whose career has been spent examining the archaeological data, developing the chemical analyses, and following the trail of the Eurasian grapevine (Vitis vinifera) in the wild and its domestication by humans, this confirmation of the earliest evidence of viniculture in France is a key step in understanding the ongoing development of what he calls the “wine culture” of the world—one that began in the Turkey’s Taurus Mountains, [sic[ the Caucasus Mountains, and/or the Zagros Mountains of Iran about 9,000 years ago.

...

"Now we know that the ancient Etruscans lured the Gauls into the Mediterranean wine culture by importing wine into southern France. This built up a demand that could only be met by establishing a native industry, likely done by transplanting the domesticated vine from Italy, and enlisting the requisite winemaking expertise from the Etruscans."

The news release provides a high level (general with too few details for my taste) description of the technology used for this research,

After sample extraction, ancient organic compounds were identified by a combination of state-of-the-art chemical techniques, including infrared spectrometry, gas chromatography-mass spectrometry, solid phase microextraction, ultrahigh-performance liquid chromatography tandem mass spectrometry, and one of the most sensitive techniques now available, used here for the first time to analyze ancient wine and grape samples, liquid chromatography-Orbitrap mass spectrometry.

All the samples were positive for tartaric acid/tartrate (the biomarker or fingerprint compound for the Eurasian grape and wine in the Middle East and Mediterranean), as well as compounds deriving from pine tree resin. Herbal additives to the wine were also identified, including rosemary, basil and/or thyme, which are native to central Italy where the wine was likely made. (Alcoholic beverages, in which resinous and herbal compounds are more easily put into solution, were the principle medications of antiquity.)

Nearby, an ancient pressing platform, made of limestone and dated circa 425 BCE, was discovered. Its function had previously been uncertain. Tartaric acid/tartrate was detected in the limestone, demonstrating that the installation was indeed a winepress. Masses of several thousand domesticated grape seeds, pedicels, and even skin, excavated from an earlier context near the press, further attest to its use for crushing transplanted, domesticated grapes and local wine production. Olives were extremely rare in the archaeobotanical corpus at Lattara until Roman times. This is the first clear evidence of winemaking on French soil.

Here's what the ancient wine press looks like,

Caption: This is an ancient pressing platform from Lattara, seen from above. Note the spout for drawing off a liquid. It was raised off the courtyard floor by four stones. Masses of grape remains were found nearby. Credit: Photograph courtesy of Michael Py, copyright l'Unité de Fouilles et de Recherches Archéologiques de Lattes.

Caption: This is an ancient pressing platform from Lattara, seen from above. Note the spout for drawing off a liquid. It was raised off the courtyard floor by four stones. Masses of grape remains were found nearby.
Credit: Photograph courtesy of Michael Py, copyright l’Unité de Fouilles et de Recherches Archéologiques de Lattes.

Here’s how McGovern describes his work and its relationship to the history of viniculture in Europe and the ancient Near East, from the news release,

For nearly two decades, Dr. McGovern has been following the story of the origin and expansion of a worldwide “wine culture”—one that has its earliest known roots in the ancient Near East, circa 7000-6000 BCE, with chemical evidence for the earliest wine at the site of Hajji Firiz in what is now northern Iran, circa 5400-5000 BCE. Special pottery types for making, storing, serving and drinking wine were all early indicators of a nascent “wine culture.”

Viniculture—viticulture and winemaking—gradually expanded throughout the Near East. From the beginning, promiscuous domesticated grapevines crossed with wild vines, producing new cultivars. Dr. McGovern observes a common pattern for the spreading of the new wine culture: “First entice the rulers, who could afford to import and ostentatiously consume wine. Next, foreign specialists are commissioned to transplant vines and establish local industries,” he noted. “Over time, wine spreads to the larger population, and is integrated into social and religious life.”

Wine was first imported into Egypt from the Levant by the earliest rulers there, forerunners of the pharaohs, in Dynasty 0 (circa 3150 BCE). By 3000 BCE the Nile Delta was being planted with vines by Canaanite viniculturalists. As the earliest merchant seafarers, the Canaanites were also able to take the wine culture out across the Mediterranean Sea. Biomolecular archaeological evidence attests to a locally produced, resinated wine on the island of Crete by 2200 BCE.

“As the larger Greek world was drawn into the wine culture, “ McGovern noted, “the stage was set for commercial maritime enterprises in the western Mediterranean. Greeks and the Phoenicians—the Levantine successors to the Canaanites—vied for influence by establishing colonies on islands and along the coasts of North Africa, Italy, France, and Spain. The wine culture continued to take root in foreign soil—and the story continues today.”

Where wine went, so other cultural elements eventually followed—including technologies of all kinds and social and religious customs—even where another fermented beverage made from different natural products had long held sway. In the case of Celtic Europe, grape wine displaced a hybrid drink of honey, wheat/barley, and native wild fruits (e.g., lingonberry and apple) and herbs (such as bog myrtle, yarrow, and heath

I wonder why wine displaced Celtic Europe’s hybrid honey drink. Did wine taste better and/or did get folks drunk faster?

For anyone who’s interested in the research, here’s a link to and a citation for the paper,

Beginning of viniculture in France by Patrick E. McGovern, Benjamin P. Luley, Nuria Rovira, Armen Mirzoiand, Michael P. Callahane, Karen E. Smithf, Gretchen R. Halla, Theodore Davidsona, and Joshua M. Henkina. Published online before print June 3, 2013, doi: 10.1073/pnas.1216126110 PNAS June 3, 2013

The paper is behind a paywall.

France’s nanomaterial declaration

Thursday, May 16th, 2013

I stumbled across a rather brief May 13, 2013 announcement on the ICON (International Council on Nanotechnology) website about a French nanomaterial initiative,

France Extends Deadline for Reporting Nanomaterials (NOECT Blog)

Further investigation landed me on the R-Nano.fr; Declaration of Nanomaterials website,

Welcome to the website for declaring substances with nanoparticle status: “r-nano”. On these pages you can declare the substances with nanoparticle status that you produce, import, distribute, or formulate, as required by Articles L. 523-1 to L. 523-5 of the French Environmental Code.

At the deadline of 30 April 2013, 457 companies have made 1991 declarations. These initial results shows a satisfactory mobilization of stakeholders.

The Ministry of Ecology, Sustainable Development and Energy, considering the diversity of actors covered by the declaration requirement, and at the request of several industries, decided, for the first reporting year, to grant two more months to complete the declarations. Thereby, exceptionally, new declarations can be initiated and submitted until 30 June 2013.

There’s a little more explanation of the site’s raison d’être on the Help/FAQs page,

Q : 1/ Why is there a system for declaring substances with nanoparticle status ?

Because of the advantages offered by their specific properties, substances with nanoparticle status are used in a number of sectors: foodstuffs, aeronautics, cosmetics, alternative energies, pneumatics, health, sport and others. The properties in question are such as to create potential hazards for humans and the environment. As emphasised in the European Commission Communication of 3 October 2012, a substance can present different hazards depending on whether it has bulk status or nanoparticle status.

For a better understanding of the issues, it seems necessary to acquire an improved knowledge of the market, including the substances marketed in France, their uses, the sectors in which they are used, the quantities involved, etc.

With the help of this information, it will be possible to estimate exposures more accurately and produce risk assessments for these substances. It is for this purpose that France has decided to introduce mandatory declaration of substances with nanoparticle status, whether in that form, in mixtures or within certain materials.

Q : 2/ How must declarations be made? Is there a special form ?

A web site has been set up on which the various companies concerned can each create an account and submit their declarations. The address of the declaration web site is www.r-nano.fr

Regarding declarations for which applicants wish to make use of the waiver concerning the availability of information to the public provided for activities related to national defence, the declaration will first be made online and then finalised on paper.

Q : 3/ At what date does the system come into force ?

The system comes into force on 1 January 2013: the first declarations will concern substances in nanoparticle status produced, imported and/or distributed during 2012.

Q : 5/ If a substance with nanoparticle status is indicated on the packaging (case of biocides and cosmetics in 2013), is it still necessary to submit a declaration ?

Yes: the labelling and the declaration system do not have the same purpose.

Q : 6/ Is France the only country in Europe with this kind of declaration system ?

Yes, though Italy, Belgium and Denmark are considering the introduction of similar measures.

Q : 7/ Which players are concerned by the declaration ? (UPDATED)

All national participants in the distribution chain in France covered by the requirement to declare substances with nanoparticle status must complete a declaration if they produce, import into France from another Member State of the European Union or from any other country or distribute any substance, mixture or “article” (article, see Question 18) covered by the definitions laid down in Article R. 523-12 and in quantities exceeding 100 grams/year and per substance.

Q : 38/ How will the information supplied be used ?

The information supplied for declarations enables the authorities to estimate the flows of substances with nanoparticle status in France, which will be a “first” for Europe. The knowledge acquired concerning substances and their uses, the production and usage sectors, or the quantities sold, will provide insight into the dissemination of these substances and their actual use.

To help them undertake health risk assessments, authorities will be allowed to request supplementary information from declarers, when available, especially concerning toxicological and ecotoxicological data, as well as data concerning exposure.

I have two comments. First, there are over 40 questions in the FAQs but none concern the issue of how this requirement will be enforced. Second, I gather that after abysmal results elsewhere the French concluded that voluntary reporting does not work.

It’s good to see at least [one*] government making an attempt to gather the information openly. The Canadian scheme was managed in a more clandestine fashion. I finally tracked down some information about it in an OECD (Organization for Economic Cooperation and Development) document and featured some of the data from the Canadian nanomaterial reporting scheme (as reported to the OECD)  in my April 12, 2010 posting.

* ETA May 17, 2013: I added the word ‘one’.

France’s first interactive nanotechnology map

Monday, February 4th, 2013

A Feb. 4, 2013 news item on Azonano features information about an interactive nanotechnology map of France produced by research and consulting company, NanoThinking (French language website). From the news item,

NanoThinking have announced the launch of the first interactive French NanoTech Map – an online tool to explore the world of nanoscience industry and research in France.

A new energy economy, a need for innovative high-performance products, an intelligent connected world, and improved resource efficiency in industrial production – these are some of the key challenges facing the modern society.

French nanotech organizations should feel free to explore the map, and add themselves to the map if they are not already listed.

Here’s an image of the map,

NanoThinkingMap

The news item on Azonano has more information. If you are interested, you can access the interactive map here.

For the record, this is a classic public relations/marketing ploy. NanoThinking gets some publicity and makes contact with potential customers in a ‘non sales’, i.e., nonthreatening/nonagressive, fashion.

I like these ploys as they are generous. The only problem is shifting from voluntary participation to a paying relationship. I wish NanoThinking good luck.

Analysis of German language media coverage of nanotechnology

Tuesday, January 22nd, 2013

Austria’s NanoTrust project published, in October 2012, a dossier tittled: Nanotechnology in the media; On the reporting in representative daily newspapers in Austria, Germany and Switzerland which has been highlighted in a Jan. 21, 2013 Nanowerk Spotlight article (Note: Footnotes have been removed),

The media can have a significant influence on the public image of science and technology, in the specific case nanotechnology. This is true in particular if only a small percentage of the population only comes directly into contact with such fields of research. Mass media reporting serves to increase awareness of selected topics, informs about current debates involving a wide variety of actors who need to be heard and thus also prepares a basis for future social debates. The population is introduced to central aspects of technical applications, which also include the opportunities and risks associated with the new technologies.

A media analysis has been conducted of selected quality newspapers within the framework of the “NanoPol” project [cooperation between the Institute for Technology Assessment and Systems Analysis (ITAS) at the Karlsruhe Institute for Technology (KIT), the Institute for Technology Assessment (ITA) at the Austrian Academy of Sciences (OeAW), TA-Swiss in Berne and the Programme for Science Research of the University of Basel], which analyses the nanotechnology policies of Austria, Germany and Switzerland.

Quality newspapers are characterised by their target group, comprising persons who have a specific interest in national events and information and who are of significance as multipliers for opinion formation amongst the national public. At the same time, mass media as an ongoing observer in the public can contribute to determining the significance of the topic for the public discussion. For each country, two print media were investigated, the investigation period extending over ten years (2000-2009):

– Der Standard and Die Presse (A);

– Frankfurter Allgemeine Zeitung and die Süddeutsche Zeitung (D);

– Neue Züricher Zeitung and der Tagesanzeiger (CH).

The media analysis covered almost 2000 articles produced between 2000 and 2009,

Roughly 44 % of all articles were accounted for by the two German print media, while Switzerland and Austria had a share of 29 % and 27 % respectively, with in each case one national newspaper having published significantly more articles with nanotechnology topics. At the beginning of the investigation period, the frequency of articles still varied considerably in the different countries, but converged towards the end of the period.

The reports on nanotechnology are overwhelmingly (88 %) to be found in fact-focused report formats such as news reports or background coverage, while a small percentage of the contributions are drawn up in the form of interviews, comments and essays.

There’s a bit of a surprise (to me) concerning popular topics in that medical applications don’t place first in terms of interest,

Topics related to basic research, which for instance include toxicology and risk research, constituted an in part clear majority in all three countries. Applications in the field of information and communication technology, extending from data media to sensors, were the second most frequently referred to topic. Medical applications, from diagnostics to specific therapies, occupied third place in all three countries, although relatively speaking there were somewhat more reports about medical topics in Austria than in the other two countries.  [emphases mine] Reports from the field of business and politics, dealing above all with companies, research subsidies, environment and economic policies, occupied places four and five.

The conclusion of this Spotlight article seems to hint at a little disappointment,

The reporting on nanotechnology in the media in the three German-speaking countries is largely science-centred and attracts a generally low level of attention amongst the broad public thanks to its less emphasised placing. There is hardly any opinion-focused reporting, with classical news reports and reports relating to current research activities or events predominating. In all three countries, the newspapers’ science departments play a dominant role, and scientists also play a central role as actors.

An event-focused positive representation predominates. A focus on risks and controversial reporting, a concern raised regularly in expert circles, was not proven in the present study. Risk topics play a role in fewer than 20 % of articles; the benefits and opportunities of nanotechnology, on the other hand, are mentioned in 80 % of all articles.

Benefits are seen above all for science. Scientific actors are likewise mentioned relatively frequently, which indicates the close connections between science and business, and the economic expectations of nanotechnology. One would have to examine the extent to which the absence of controversies can be attributed to the hitherto lack of evidence of possible dangers and risks or to well-functioning strategic scientific PR work. [emphasis mine]

Why mention  “well-functioning strategic scientific PR work” in the conclusion when there has been no mention of public relations (PR) in any other section of this dossier?  As well, if strategic scientific PR work was that effective, then nuclear power might not be quite so controversial.

Overall, this study doesn’t break any new ground but does confirm a growing consensus of opinion, the public regardless of which country (with the possible exception of France) we are discussing tends not to be all that interested in nanotechnology.

For those curious about the French controversies, there’s a mention in my March 10, 2010 posting (scroll down about 1/4 of the way) about an Agence Science-Presse radio interview with Celine Lafontaine, a Quebec-based academic who studies the social impact of nanotechnology and was in France during a very contentious series of public debates on the subject.

For anyone who found the reference to ‘actors’ in this research a little unexpected, the term is being used by researchers who are using ‘actor-network theory’ as an analytical tool. You can find out more about actor-network theory in this Wikipedia essay.

The yin and the yang of carbon nanotubes and toxicity

Wednesday, January 16th, 2013

 

Illustration courtesy of the University College of London (UCL). Downloaded from http://www.ucl.ac.uk/news/news-articles/0113/130115-chemistry-resolves-toxic-concerns-about-carbon-nanotubes

Illustration courtesy of the University College of London (UCL). Downloaded from http://www.ucl.ac.uk/news/news-articles/0113/130115-chemistry-resolves-toxic-concerns-about-carbon-nanotubes

Researchers at the University College of London (UCL), France’s Centre national de la recherche scientifique (CNRS), and Italy’s University of Trieste have determined that carbon nanotube toxicity issues can be addressed be reducing their length and treating them chemically. From the Jan. 15,2013 news item on ScienceDaily,

In a new study, published January 15 [2013] in the journal Angewandte Chemie, evidence is provided that the asbestos-like reactivity and pathogenicity reported for long, pristine nanotubes can be completely alleviated if their surface is modified and their effective length is reduced as a result of chemical treatment.

First atomically described in the 1990s, carbon nanotubes are sheets of carbon atoms rolled up into hollow tubes just a few nanometres in diameter. Engineered carbon nanotubes can be chemically modified, with the addition of chemotherapeutic drugs, fluorescent tags or nucleic acids — opening up applications in cancer and gene therapy.

Furthermore, these chemically modified carbon nanotubes can pierce the cell membrane, acting as a kind of ‘nano-needle’, allowing the possibility of efficient transport of therapeutic and diagnostic agents directly into the cytoplasm of cells.

Among their downsides however, have been concerns about their safety profile. One of the most serious concerns, highlighted in 2008, involves the carcinogenic risk from the exposure and persistence of such fibres in the body. Some studies indicate that when long untreated carbon nanotubes are injected to the abdominal cavity of mice they can induce unwanted responses resembling those associated with exposure to certain asbestos fibres.

In this paper, the authors describe two different reactions which ask if any chemical modification can render the nanotubes non-toxic. They conclude that not all chemical treatments alleviate the toxicity risks associated with the material. Only those reactions that are able to render carbon nanotubes short and stably suspended in biological fluids without aggregation are able to result in safe, risk-free material.

Here’s a citation and link for this latest  research, from the ScienceDaily news item where you can also read the lead researcher’s comments about carbon nanotubes, safety, and unreasonable proposals to halt production,

Hanene Ali-Boucetta, Antonio Nunes, Raquel Sainz, M. Antonia Herrero, Bowen Tian, Maurizio Prato, Alberto Bianco, Kostas Kostarelos. Asbestos-like Pathogenicity of Long Carbon Nanotubes Alleviated by Chemical Functionalization. Angewandte Chemie International Edition, 2013; DOI: 10.1002/anie.201207664

The article is behind a paywall. I have mentioned long carbon nanotubes and their resemblance to asbestos fibres in several posts. The  Oct. 26, 2009 posting [scroll down about 1/3 of the way] highlights research which took place after the study where mice had carbon nanotubes injected into their bellies; in this second piece of research they inhaled the nanotubes.

ETA Jan. 21, 2013: Dexter Johnson gives context and commentary about this latest research into long multiwalled nanotubes (MWNTs) which he sums up as the answer to this question “What if you kept the MWNTs short?”  in a Jan. 18, 2013 posting on his Nanoclast blog (on the IEEE [Institute of Electrical and Electronics Engineers] website)

Fireflies and their jagged scales lead to brighter LEDs (light emitting diodes)

Tuesday, January 8th, 2013

According to the Jan. 8, 2013 news item on ScienceDaily, scientists have used an observation about fireflies to make brighter LEDs (light emitting diodes),

The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original.

Researchers from Belgium, France, and Canada studied the internal structure of firefly lanterns, the organs on the bioluminescent insects’ abdomens that flash to attract mates. The scientists identified an unexpected pattern of jagged scales that enhanced the lanterns’ glow, and applied that knowledge to LED design to create an LED overlayer that mimicked the natural structure. The overlayer, which increased LED light extraction by up to 55 percent, could be easily tailored to existing diode designs to help humans light up the night while using less energy.

The Optical Society of America’s Jan. 8, 2013 news release, which originated the news item, describes how the scientists came to make their observations,

“The most important aspect of this work is that it shows how much we can learn by carefully observing nature,” says Annick Bay, a Ph.D. student at the University of Namur in Belgium who studies natural photonic structures, including beetle scales and butterfly wings.  When her advisor, Jean Pol Vigneron, visited Central America to conduct field work on the Panamanian tortoise beetle (Charidotella egregia), he also noticed clouds of twinkling fireflies and brought some specimens back to the lab to examine in more detail.

Fireflies create light through a chemical reaction that takes place in specialized cells called photocytes. The light is emitted through a part of the insect’s exoskeleton called the cuticle.  Light travels through the cuticle more slowly than it travels through air, and the mismatch means a proportion of the light is reflected back into the lantern, dimming the glow. The unique surface geometry of some fireflies’ cuticles, however, can help minimize internal reflections, meaning more light escapes to reach the eyes of potential firefly suitors.

In Optics Express papers, Bay, Vigneron, and colleagues first describe the intricate structures they saw when they examined firefly lanterns and then present how the same features could enhance LED design. Using scanning electron microscopes, the researchers identified structures such as nanoscale ribs and larger, misfit scales, on the fireflies’ cuticles. When the researchers used computer simulations to model how the structures affected light transmission they found that the sharp edges of the jagged, misfit scales let out the most light. The finding was confirmed experimentally when the researchers observed the edges glowing the brightest when the cuticle was illuminated from below.

“We refer to the edge structures as having a factory roof shape,” says Bay.  “The tips of the scales protrude and have a tilted slope, like a factory roof.” The protrusions repeat approximately every 10 micrometers, with a height of approximately 3 micrometers. “In the beginning we thought smaller nanoscale structures would be most important, but surprisingly in the end we found the structure that was the most effective in improving light extraction was this big-scale structure,” says Bay.

Here’s how the scientists applied their observations to LEDs (from the news release),

Human-made light-emitting devices like LEDs face the same internal reflection problems as fireflies’ lanterns and Bay and her colleagues thought a factory roof-shaped coating could make LEDs brighter. In the second Optics Express paper published today, which is included in the Energy Express  section of the journal, the researchers describe the method they used to create a jagged overlayer on top of a standard gallium nitride LED. Nicolas André, a postdoctoral researcher at the University of Sherbrooke in Canada, deposited a layer of light-sensitive material on top of the LEDs and then exposed sections with a laser to create the triangular factory-roof profile. Since the LEDs were made from a material that slowed light even more than the fireflies’ cuticle, the scientists adjusted the dimensions of the protrusions to a height and width of 5 micrometers to maximize the light extraction.

“What’s nice about our technique is that it’s an easy process and we don’t have to create new LEDs,” says Bay.  “With a few more steps we can coat and laser pattern an existing LED.”

Other research groups have studied the photonic structures in firefly lanterns as well, and have even mimicked some of the structures to enhance light extraction in LEDs, but their work focused on nanoscale features. The Belgium-led team is the first to identify micrometer-scale photonic features, which are larger than the wavelength of visible light, but which surprisingly improved light extraction better than the smaller nanoscale features. The factory roof coating that the researchers tested increased light extraction by more than 50 percent, a significantly higher percentage than other biomimicry approaches have achieved to date. The researchers speculate that, with achievable modifications to current manufacturing techniques, it should be possible to apply these novel design enhancements to current LED production within the next few years.

For those who care to investigate further,

Both articles (HTML version) are open access; PDF versions were not checked.

Where do buckyballs come from?

Tuesday, August 7th, 2012

I’ve always wondered where buckyballs come from (as have scientists for the last 25 years) and now there’s an answer of sorts  (from the July 31, 2012 Florida State University news release Note: I have removed some links),

“We started with a paste of pre-existing fullerene molecules mixed with carbon and helium, shot it with a laser, and instead of destroying the fullerenes we were surprised to find they’d actually grown,” they wrote. The fullerenes were able to absorb and incorporate carbon from the surrounding gas.

By using fullenes  that contained heavy metal atoms in their centers, the scientists showed that the carbon cages remained closed throughout the process.

“If the cages grew by splitting open, we would have lost the metal atoms, but they always stayed locked inside,” Dunk [Paul Dunk, a doctoral student in chemistry and biochemistry at Florida State and lead author of the study published in Nature Communications] noted.

The researchers worked with a team of MagLab chemists using the lab’s 9.4-tesla Fourier transform ion cyclotron resonance mass spectrometer to analyze the dozens of molecular species produced when they shot the fullerene paste with the laser. The instrument works by separating molecules according to their masses, allowing the researchers to identify the types and numbers of atoms in each molecule. The process is used for applications as diverse as identifying oil spills, biomarkers and protein structures.

Dexter Johnson in his Aug. 6, 2012 posting on the Nanoclast blog on the IEEE (Institute of Electrical and Electronics Engineers) provides some context and commentary (Note: I have removed a link),

When Richard Smalley, Robert Curl, James Heath, Sean O’Brien, and Harold Kroto prepared the first buckminsterfullerene (C60) (or buckyball), they kicked off the next 25 years of nanomaterial science.

Here’s an artist’s illustration of  what these scientists have achieved, fullerene cage growth,

An artist’s representation of fullerene cage growth via carbon absorption from surrounding hot gases. Some of the cages contain lanthanum metal atoms. (Image courtesy National Science Foundation) [downloaded from Florida State University website]

 As I noted earlier I’m not alone in my fascination (from the news release),

Many people know the buckyball, also known by scientists as buckminsterfullerene, carbon 60 or C60, from the covers of their school chemistry textbooks. Indeed, the molecule represents the iconic image of “chemistry.” But how these often highly symmetrical, beautiful molecules with  fascinating properties form in the first place has been a mystery for a quarter-century. Despite worldwide investigation since the 1985 discovery of C60, buckminsterfullerene and other, non-spherical C60 molecules — known collectively as fullerenes — have kept their secrets. How? They’re born under highly energetic conditions and grow ultra-fast, making them difficult to analyze.

“The difficulty with fullerene formation is that the process is literally over in a flash — it’s next to impossible to see how the magic trick of their growth was performed,” said Paul Dunk, a doctoral student in chemistry and biochemistry at Florida State and lead author of the work.

There’s more than just idle curiosity at work (from the news release),

The buckyball research results will be important for understanding fullerene formation in extraterrestrial environments. Recent reports by NASA showed that crystals of C60 are in orbit around distant suns. This suggests that fullerenes may be more common in the universe than previously thought.

“The results of our study will surely be extremely valuable in deciphering fullerene formation in extraterrestrial environments,” said Florida State’s Harry Kroto, a Nobel Prize winner for the discovery of C60 and co-author of the current study.

The results also provide fundamental insight into self-assembly of other technologically important carbon nanomaterials such as nanotubes and the new wunderkind of the carbon family, graphene.

H/T to Nanowerk’s July 31, 2012 news item titled, Decades-old mystery how buckyballs form has been solved. In addition to Florida State University, National High Magnetic Field Laboratory (or MagLab), the CNRS  (Centre National de la Recherche Scientifique)Institute of Materials in France and Nagoya University in Japan were also involved in the research.

The Australians want one; the French and the Dutch each have one; a nanomaterials registry

Friday, July 27th, 2012

The July 25, 2012 news article by Rachel Carbonell for ABC (Australian Broadcasting Corporation) discusses the current situation in Australia,

The ABC’s revelations that some sunscreen brands are inaccurately promoting themselves as nanotechnology-free have prompted calls for better regulation of nano-materials.

But the push for a mandatory register has suffered a blow, with a Federal Government report labelling it questionable.

The Australian Council of Trade Unions (ACTU) is among those calling for a register, saying the potential risks posed by nano-particles are still unknown.

The Federal Government recently released a study it commissioned to look at the feasibility of a mandatory nanotechnology product register.

The study concluded: “It is clear that some nano-materials behave differently to bulk-form materials and there are associated health, safety and environmental risks.”

“However the challenge presented by nanotechnology can be met through existing regulatory frameworks.

“It is therefore difficult to see a nano-products register delivering a net benefit to the community. The feasibility of a nano-product registry is questionable.”

But groups pushing for a register disagree.

The feasibility report points to the challenge of ensuring safety without stifling innovation, saying nanotechnology is potentially worth $50 billion a year to the Australian economy.

“But the fact that France is already implementing their mandatory register of nano-materials and the Netherlands is following closely, surely demonstrates that it must be possible.” [said Gregory Crocetti from Friends of the Earth]

The discussion presented in Carbonell’s piece is more involved than what I’ve excerpted for this posting so you may want to read her full article.

I  don’t believe I’ve come across that information about nanomaterial registries in France and Holland (Netherlands) before. I’ll see if I can find more about them to confirm their existence and exactly what is being documented.

Art/science project (Clipperton) in Mexico

Friday, March 2nd, 2012

This art/science project (Clipperton Project) is taking place off Mexico’s Pacific coast. From the Feb. 29, 2012 news item on Physorg.com,

Twenty artists and scientists from eight countries set sail Thursday [March 1, 2012] for Clipperton Island, an isolated French atoll off Mexico’s Pacific coast, to investigate effects of climate change and the island’s history.

Named after British pirate John Clipperton, the uninhabited island, also known as the “Island of Passion,” is some 2.3 square miles (six square kilometers) in size, has no drinkable water and is home to poisonous crabs and rats.

Here’s more about the Clipperton Project from a Feb. 25, 2011 news item on Huffington Post,

The Clipperton Project is a multi-disciplinary, four-nation arts and science project which aims to take some of the very best practitioners in the arts and sciences from Mexico, the United Kingdom, the United States and France on an expedition to the forgotten island of Clipperton in October 2011.

The participants will then produce work based on the history of the atoll (specifically Mexico’s damned colony of 1917) and its ecological, geological and human history in order to paint a cross-cultural portrayal of this unique island in the middle of the Pacific, displaying its work at some of the most important forums in these countries between 2011 and 2014.

I gather from the item on the Huffington Post that this expedition has been rescheduled at least once. I’m glad to see they’ve been able to pull it off.

The latest news from the expedition organized by Jonathan Bonfliglio (from http://www.clippertonproject.com/ Note: this looks like the home page so it might not always feature the latest news and images but the Expeditions webpage is sure to feature the most up-to-date information live from the ship.),

The team has arrived in Cabo Pulmo National Park. They will be spending the day there with the local community and will be involved in a series of events in association with Greenpeace México. The events are intended to promote the fascinating story of this threatened marine reserve. Accompanying them on this leg of the journey are TV Azcteca (Mex), France 24 (France) and National Geographic (international).

One of the latest images from the expedition,

Clipperton Island on Day 2 (March 2, 2012) of Clipperton Island art/science project

Sometimes you just have to love the internet. One minor question, why aren’t there any Canadians on this expedition? It just seems odd since we are part of North America along with the US and Mexico and we have strong ties historically with the UK and France not to mention that we do a lot of ocean-based research ourselves. In fact, GrrlScientist one of the Guardian science bloggers featured a video from Ocean Networks Canada Observatory on her March 1, 2012 posting, which you can view there or on the Ocean Networks Vimeo channel. Here’s one of the earlier videos from their channel (it’s a bit heavy on the marketing),

Canada’s Ocean Observatory from Ocean Networks Canada on Vimeo.

Personally, I think they could have done with a poet or two helping out with the narration. I hope that in the future they’ll be inspired by the Clipperton Project approach.