Tag Archives: Susan Squier

Interview with Dr. David T. Cramb; venture capital and nano and microsystems; NanoBusiness Alliance roundtable; science and artists

March 3, 2010, I posted about Dr. David Cramb, director of the Nanoscience Program and professor in the department of Chemistry at the University of Calgary, and his colleagues. They had just published a paper (Measuring properties of nanoparticles in embryonic blood vessels: Towards a physicochemical basis for nanotoxicity)  in Chemical Physics Letters about a new methodology they are developing to measure the impact of nanoparticles  on human health and the environment. Dr. Cramb very kindly answered some email questions about the study (abstract is here, article is behind a paywall).

  • Is this work on nanoparticles and blood vessels part of a larger project? i.e. Is this an OECD project; is there going to be an international report; is this part of a cross-Canada investigation into nanoparticles and their impact on health?

This is a collaborative project, but the reports that we generate will be available to Environment Canada and Health Canada. We have collaborators from both agencies.

  • In reading the abstract (for the article, which is behind a paywall and probably too technical for me), it seemed to me that this is a preliminary study which sets the stage for a nanoparticle study. In fact, you were studying quantum dots (CdSe/ZnS) and establishing that a particular kind of spectroscopy could be used to track the accumulation of nanoparticles in chicken embryos. Is this correct? And if so, why not study the nanoparticles directly?

A quantum dot is a type of nanoparticle.  So, in principle, we can apply our techniques to any other nanoparticle of interest.

  • What does CdSe/ZnS stand for?

cadmium selenide (in the centre of the nanoparticle) / zinc sulfide (coating on the outside)

  • What kind or kinds of nanoparticles are going to be used for the study moving forward from this one?

Similar but different sizes and surface chemistries. We want to understand what properties affect uptake into tissues and distribution in organs. That way we can predict risk.

  • From reading the abstract (and thanks to the person who wrote the explanation), I have a pretty good idea why chicken embryos are being used. [I’ll insert the description from the abstract here with attributions.] In another context, I have come across the notion that chickens in the US at least, I don’t know about Canada, have been so thoroughly compromised genetically that using their embryos for research is problematic. (brief note: I attended a lecture by Susan Squier, a noted academic, who had a respondent [a US scientist] claiming he moved to the UK because he didn’t feel confident experimenting with US chicken embryos.) What are your thoughts on this?

We aren’t doing genetic studies, so knowing the lineage of the embryos isn’t critical for us.

  • Is there anything else you’d like to add?

Nanoparticles are being used in many areas from cosmetics to pharmaceutical to energy. As yet, there is no evidence that the nanoscale formulation adds any risk to these applications. We in nanoscience believe that we must maintain due diligence to asess future risk and to make nanotechnology as green as possible.

Thank you Dr. Cramb for taking the time to explain your work.

On a completely other front, Harris & Harris Group a venture capital group that invests in nanotechnology and microsystems is holding a fourth quarter conference call on Friday, March 12, 2010.  From the Harris & Harris Group website,

With over 30 nanotechnology companies in our portfolio, Harris & Harris Group, Inc., is one of the most active nanotechnology investors in the world. We have funded companies developing nanoscale-enabled solutions in solid state lighting, emerging memory devices, printable electronics, photovoltaics, battery technologies, thermal and power management, next-generation semiconductor devices and equipment, quantum computing, as well as in various life-science applications of nano-structured materials.

We consider a company to fit our investment thesis if the company employs, intends to employ or enables technology that we consider to be at the microscale, nanoscale or smaller and if the employment of that technology is material to its business plan. We are interested in funding entrepreneurs with energy, vision and the desire to build great companies.

From the news release on CNN announcing the conference call,

The management of Harris & Harris Group, Inc. (Nasdaq:TINY) will hold a conference call to discuss the Company’s financial results for its fiscal fourth quarter and full year 2009, to update shareholders and analysts on our business and to answer questions, on Friday, March 19, 2010, at 10:00 a.m. Eastern Time.

For details about accessing the webcast, please follow the link to the news release.

Still on business-related nanotechnology news, the NanoBusiness Alliance will be holding its annual Washington, DC roundtable, March 15-17, 2010. From the news item on Nanowerk,

The NanoBusiness Alliance, the world’s leading nanotechnology trade association, today announced that it will convene numerous nanotechnology industry executives in Washington, D.C. from March 15 – 17 for its 9th annual “Washington DC Roundtable”. As in past years, NanoBusiness Alliance members will participate in three days of high-level meetings with Members of Congress, Administration officials, and key staff.

If you are interested in the NanoBusiness Alliance, their homepage is here.

For today’s almost final entry, I’m going back to science and its relationship to art, a topic alluded to just prior to my introduction of the Cheryl Geisler (dean of the Faculty of Communication, Art and Technology at Simon Fraser University, Canada) interview. At the time I noted that art, science and technology are interconnected to justify my inclusion of art topics in this blog and, specifically, my inclusion of the Geisler interview. I just read an entry by David Bruggeman (Pasco Phronesis blog) which describes the impact that art can have. From the post,

… McCall’s art is certainly an influence on why I’m involved with science and technology today. You may not know it, but it’s likely you’ve seen his work in connection with reports on space, or in works of science fiction for the page or the screen …

McCall is Robert McCall, an important space artist who recently died. His website is here and Bruggeman provides other links to McCall’s works.

This bit has nothing to do with anything other than I’ve always thought thought Emma Peel was Steed’s (The Avengers) best partner and found this tribute (clips of Diana Rigg as Peel set to The Kinks) on Raincoaster here. (Scroll down the page.)

Pop culture, science communication, and nanotechnology

A few years back I wrote a paper for the  Cascadia Nanotech Symposium (March 2007 held in Vancouver) called: Engaging Nanotechnology: pop culture, media, and public awareness. I was reminded it of a few days ago when I saw a mention on Andrew Maynard’s, 2020 Science blog about a seminar titled, Biopolitics of Popular Culture being held in Irvine, California on Dec. 4, 2009 by the Institute of Ethics for Emerging Technologies. (You can read more of Andrew’s comments here or you can check out the meeting details here.) From the meeting website,

Popular culture is full of tropes and cliches that shape our debates about emerging technologies. Our most transcendent expectations for technology come from pop culture, and the most common objections to emerging technologies come from science fiction and horror, from Frankenstein and Brave New World to Gattaca and the Terminator.

Why is it that almost every person in fiction who wants to live a longer than normal life is evil or pays some terrible price? What does it say about attitudes towards posthuman possibilities when mutants in Heroes or the X-Men, or cyborgs in Battlestar Galactica or Iron Man, or vampires in True Blood or Twilight are depicted as capable of responsible citizenship?

Is Hollywood reflecting a transhuman turn in popular culture, helping us imagine a day when magical and muggle can live together in a peaceful Star Trek federation? Will the merging of pop culture, social networking and virtual reality into a heightened augmented reality encourage us all to make our lives a form of participative fiction?

During this day long seminar we will engage with culture critics, artists, writers, and filmmakers to explore the biopolitics that are implicit in depictions of emerging technology in literature, film and television.

I’m not sure what they mean by biopolitics, especially after the lecture I attended at Simon Fraser University’s downtown campus last night (Nov. 12, 2009), Liminal Livestock. Last night’s lecture by Susan Squier highlighted (this is oversimplified) the relationship between women and chickens in the light of reproductive technologies.  From the lecture description,

Adapting SubRosa Art Collective’s memorable question, this talk asks: “What does it mean, to feminism and to agriculture, that women are like chickens and chickens are like women?” As liminal livestock, chickens play a central role in our gendered agricultural imaginary: the zone where we find the “speculative, propositional fabric of agricultural thought.” Analyzing several children’s stories, a novel, and a documentary film, the talk seeks to discover some of the factors that help to shape the role of women in agriculture, and the role of agriculture in women’s lives.

Squier did also discuss reproductive technologies at some length although it’s not obvious from the description that the topic will arise. She discussed the transition of chicken raising as a woman’s job to a man’s job which coincided with the rise of  chicken factory farms. Squier also noted the current interest in raising chickens in city and suburban areas without speculating on possible cultural impacts.

The lecture covered  selective breeding and the shift of university  poultry science departments from the study of science to the study of increasing chicken productivity, which led to tampering with genes and other reproductive technologies. One thing I didn’t realize is that chicken eggs are used for studies on human reproduction. Disturbingly, Squier talked to an American scientist, whose work concerns human reproduction, who moved to Britain because the chicken eggs are of such poor quality in the US.

The relationship between women and chickens was metaphorical and illustrated through popular children’s stories and pop culture artifacts (i.e. poultry beauty pageants featuring women not chickens) in a way that would require reproducing far more of the lecture than I can here. So if you are interested, I understand that Squier does have a book about women and chickens being published although I can’t find a publication date.

Squier’s lecture and the meeting for the Institute of Ethics for Emerging Technologies present different ways of integrating pop culture elements into the discussion about science and emerging technologies. Since I’m tooting my horn, I’m going to finish with my thoughts on the matter as written in my Cascadia Nanotechnology Symposium paper,

The process of accepting, rejecting, or changing new sciences and new technologies seems more akin to a freewheeling, creative conversation with competing narratives than a transfer of information from experts to nonexperts as per the science literacy model.

The focus on establishing how much awareness the public has about nanotechnology by measuring the number of articles in the newspaper or items in the broadcast media or even tracking the topic in the blogosphere is useful as one of a set of tools.

Disturbing as it is to think that it could be used for purely manipulative purposes, finding out how people develop their attitudes towards new technologies and the interplay between cognition, affect, and values has the potential to help us better understand ourselves and our relationship to the sciences. (In this paper, the terms science and technology are being used interchangeably, as is often the case with nanotechnology.)

Pop culture provides a valuable view into how nonexperts learn about science (books, television, etc.) and accept technological innovations (e.g. rejecting the phonograph as a talking book technology but accepting it for music listening).

There is a collaborative and interactive process at the heart of the nanotechnology ‘discussion’. For example, Drexler appears to be responding to some of his critics by revising some of his earlier suppositions about how nanotechnology would work. Interestingly, he also appears to be downplaying his earlier concerns about nanoassemblers running amok and unleashing the ‘goo’ scenario on us all. (BBC News, June 9, 2004)

In reviewing all of the material about communicating science, public attitudes, and values, one thing stands out: time. Electricity was seen by some as deeply disturbing to the cosmic forces of the universe. There was resistance to the idea for decades and, in some cases (the Amish), that resistance lives on. Despite all this, there is not a country in the world today that doesn’t have electricity.

One final note: I didn’t mean to suggest the inexorable adoption of any and all technologies, my intent was to point out the impossibility of determining a technology’s future adoption or rejection by measuring contemporary attitudes, hostile or otherwise.

’nuff said for today. Happy weekend!