Tag Archives: Juan Hinestroza

Textiles that clean pollution from air and water

I once read that you could tell what colour would be in style by looking at the river in Milan (Italy). It may or may not still be true in Milan but it seems that the practice of using the river for dumping the fashion industry’s wastewater is still current in at least some parts of the world according to a Nov. 10, 2016 news item on Nanowerk featuring Juan Hinestroza’s work on textiles that clear pollution,

A stark and troubling reality helped spur Juan Hinestroza to what he hopes is an important discovery and a step toward cleaner manufacturing.

Hinestroza, associate professor of fiber science and director of undergraduate studies in the College of Human Ecology [Cornell University], has been to several manufacturing facilities around the globe, and he says that there are some areas of the planet in which he could identify what color is in fashion in New York or Paris by simply looking at the color of a nearby river.

“I saw it with my own eyes; it’s very sad,” he said.

Some of these overseas facilities are dumping waste products from textile dying and other processes directly into the air and waterways, making no attempt to mitigate their product’s effect on the environment.

“There are companies that make a great effort to make things in a clean and responsible manner,” he said, “but there are others that don’t.”

Hinestroza is hopeful that a technique developed at Cornell in conjunction with former Cornell chemistry professor Will Dichtel will help industry clean up its act. The group has shown the ability to infuse cotton with a beta-cyclodextrin (BCD) polymer, which acts as a filtration device that works in both water and air.

A Nov. 10, 2016 Cornell University news release by Tom Fleischman provides more detail about the research,

Cotton fabric was functionalized by making it a participant in the polymerization process. The addition of the fiber to the reaction resulted in a unique polymer grafted to the cotton surface.

“One of the limitations of some super-absorbents is that you need to be able to put them into a substrate that can be easily manufactured,” Hinestroza said. “Fibers are perfect for that – fibers are everywhere.”

Scanning electron microscopy showed that the cotton fibers appeared unchanged after the polymerization reaction. And when tested for uptake of pollutants in water (bisphenol A) and air (styrene), the polymerized fibers showed orders of magnitude greater uptakes than that of untreated cotton fabric or commercial absorbents.

Hinestroza pointed to several positives that should make this functionalized fabric technology attractive to industry.

“We’re compatible with existing textile machinery – you wouldn’t have to do a lot of retooling,” he said. “It works on both air and water, and we proved that we can remove the compounds and reuse the fiber over and over again.”

Hinestroza said the adsorption potential of this patent-pending technique could extend to other materials, and be used for respirator masks and filtration media, explosive detection and even food packaging that would detect when the product has gone bad.

And, of course, he hopes it can play a role in a cleaner, more environmentally responsible industrial practices.

“There’s a lot of pollution generation in the manufacture of textiles,” he said. “It’s just fair that we should maybe use the same textiles to clean the mess that we make.”

Here’s a link to and a citation for the paper,

Cotton Fabric Functionalized with a β-Cyclodextrin Polymer Captures Organic Pollutants from Contaminated Air and Water by Diego M. Alzate-Sánchez†, Brian J. Smith, Alaaeddin Alsbaiee, Juan P. Hinestroza, and William R. Dichtel. Chem. Mater., Article ASAP DOI: 10.1021/acs.chemmater.6b03624 Publication Date (Web): October 24, 2016

Copyright © 2016 American Chemical Society

This paper is open access.

One comment, I’m not sure how this solution will benefit the rivers unless they’re thinking that textile manufacturers will filter their waste water through this new fabric.

There is another researcher working on creating textiles that remove air pollution, Tony Ryan at the University of Sheffield (UK). My latest piece about his (and Helen Storey’s) work is a July 28, 2014 posting featuring a detergent that deposits onto the fabric nanoparticles that will clear air pollution. At the time, China was showing serious interest in the product.

Art and nanotechnology at Cornell University’s (US) 2014 Biennial/Biennale

The 2014 Cornell [University located in New York State, US] Council for the Arts (CCA) Biennial, “Intimate Cosmologies: The Aesthetics of Scale in an Age of Nanotechnology” was announced in a Dec. 5, 2013 news item on Nanowerk,

A campuswide exhibition next fall will explore the cultural and human consequences of seeing the world at the micro and macro levels, through nanoscience and networked communications.

From Sept. 15 to Dec. 22, the 2014 Cornell Council for the Arts (CCA) Biennial, “Intimate Cosmologies: The Aesthetics of Scale in an Age of Nanotechnology”, will feature several events and principal projects by faculty and student investigators and guest artists – artist-in-residence kimsooja, Trevor Paglen and Rafael Lozano-Hemmer – working in collaboration with Cornell scientists and researchers.

The Dec.5, 2013 Cornell University news release written by Daniel Aloi, which originated the news item, describes the plans for and events leading to the biennale in Fall 2014,

The inaugural biennial theme was chosen to frame dynamic changes in 21st-century culture and art practice, and in nanoscale technology. The multidisciplinary initiative intends to engage students, faculty and the community in demonstrations of how radical shifts in scale have become commonplace, and how artists address realms of human experience lying beyond immediate sensory perception.

“Participating in the biennial is very exciting. We’re engaging the idea of nano and investigating scale as part of the value of art in performance,” said Beth Milles ’88, associate professor in the Department of Performing and Media Arts, who is collaborating on a project with students and with artist Lynn Tomlinson ’88.

A series of events and curricula this fall and spring are preceding the main Biennial exhibition. Joe Davis and Nathaniel Stern ’99 presented talks this semester, and CCA will bring Paul Thomas, Stephanie Rothenberg, Ana Viseu and others to campus in the coming months.

kimsooja, an acclaimed multimedia artist in performance, video and installation, addresses issues of the displaced self and recently represented Korea in the 55th Venice Biennale. She visited the campus Nov. 22-23 to meet with Uli Weisner and students from his research group, who will work with her to realize her large-scale installation here next fall.

Lozano-Hemmer has worked on both ends of the scale spectrum, from laser-etched poetry on human hairs to an interactive light sculpture over Mexico City, Toronto and Yamaguchi, Japan. Paglen’s researched-based work blurs lines between science, contemporary art, journalism and other disciplines.

The Biennial focus brings together artists and scientists who share a common curiosity regarding the position of the individual within the larger world, CCA Director Stephanie Owens said.

“Scientists are suddenly designers creating new forms,” she said. “And artists are increasingly interested in how things are structured, down to the biological level. Both are designing and discovering new ways of synthesizing natural properties of the material world with the fabricated experiences that extend and express the impact of these properties on our lives.”

Here’s a sample of the work that will be featured at the Biennale,

A prototype image of architecture professor Jenny Sabin's "eSkin" CCA Biennial project, an interactive simulation of a building façade that behaves like a living organism. Credit: Jenny Sabin Courtesy: Cornell University

A prototype image of architecture professor Jenny Sabin’s “eSkin” CCA Biennial project, an interactive simulation of a building façade that behaves like a living organism. Credit: Jenny Sabin Courtesy: Cornell University

Aloi includes a description of some of the exhibits and shows to be featured,

 The principal projects to be presented are:

  • “eSkin” – Architecture professor Jenny Sabin addresses ecology and sustainability issues with buildings that behave like organisms. Her project is an interactive simulation of a façade material incorporating nano- and microscale substrates plated with human cells.
  • “Nano Performance: In 13 Boxes” – Performing and media arts professor Beth Milles ‘88, animator/visual artist Lynn Tomlinson ‘88 and students from different majors will collaborate on 13 media installations and live performances situated across campus. Computer mapping and clues linking the project’s components will assist in “synthesizing the 13 events as a whole experience – it has a lot to do with discovering the performance,” Mills said.
  • “Nano Where: Gas In, Light Out” – Juan Hinestroza, fiber science, and So-Yeon Yoon, design and environmental analysis, will demonstrate the potential of molecular-level metal-organic frameworks as wearable sensors to detect methane and poisonous gases, using a sealed gas chamber and 3-D visual art.
  • “Paperscapes” – Three architecture students – teaching associate Caio Barboza ’13; Joseph Kennedy ’15 and Sonny Xu ’13 – will render the microscopic textures of a sheet of paper as a 3-D inhabitable landscape.
  • “When Art Exceeds Perception” – Ph.D. student in applied physics Robert Hovden will explore replication and plagiarism in nanoscale reproductions, 1,000 times smaller than the naked eye can see, of famous works of art inscribed onto a silicon crystal.

The Cornell Council for the Arts (CCA) has more information about their 2014 ‘nano Biennale’ here. This looks very exciting and I wish I could be there.

One final note, I’ve used the Biennale rather than Biennial as I associate Biennial and the US with the dates of 1776 and 1976 when the country celebrated its 200th anniversary.

Nano-enabled fique fiber filters harmful dyes from water

A Sept. 30, 2013 news item on ScienceDaily highlights a new technique for cleaning water,

A cheap and simple process using natural fibers embedded with nanoparticles can almost completely rid water of harmful textile dyes in minutes, report Cornell University and Colombian researchers who worked with native Colombian plant fibers.

Dyes, such as indigo blue used to color blue jeans, threaten waterways near textile plants in South America, India and China. Such dyes are toxic, and they discolor the water, thereby reducing light to the water plants, which limits photosynthesis and lowers the oxygen in the water.

The study, published in the August issue of the journal Green Chemistry, describes a proof of principle, but the researchers are testing how effectively their method treats such endocrine-disrupting water pollutants as phenols, pesticides, antibiotics, hormones and phthalates.

The Sept. 30, 2013 Cornell University news release on EurekAlert, which originated the news item,, describes the research in more detail,

The research takes advantage of nano-sized cavities found in cellulose that co-author Juan Hinestroza, Cornell associate professor of fiber science, has previously used to produce nanoparticles inside cotton fibers.

The paper describes the method: Colombian fique plant fibers, commonly used to make coffee bags, are immersed in a solution of sodium permanganate and then treated with ultrasound; as a result, manganese oxide molecules grow in the tiny cellulose cavities. Manganese oxides in the fibers react with the dyes and break them down into non-colored forms.

In the study, the treated fibers removed 99 percent of the dye from water within minutes. Furthermore, the same fibers can be used repeatedly — after eight cycles, the fibers still removed between 97 percent and 99 percent of the dye.

“No expensive or particular starting materials are needed to synthesize the biocomposite,” said Combariza [Marianny Combariza, co-author and researcher at Colombia’s Universidad Industrial de Santander]. “The synthesis can be performed in a basic chemistry lab.”

“This is the first evidence of the effectiveness of this simple technique,” said Hinestroza. “It uses water-based chemistry, and it is easily transferable to real-world situations.”

The researchers are testing their process on other types of pollutants, other fibers and composite materials. “We are working now on developing a low-cost filtering unit prototype to treat polluted waters,” said Combariza. “We are not only focused on manganese oxides, we also work on a variety of materials based on transition metal oxides that show exceptional degradation activity.”

Here’s a link to and a citation for the paper,

Biocomposite of nanostructured MnO2 and fique fibers for efficient dye degradation by Martha L. Chacón-Patiño,a   Cristian Blanco-Tirado, Juan P. Hinestroza, and  Marianny Y. Combariza. Green Chem., 2013,15, 2920-2928 DOI: 10.1039/C3GC40911B First published online 19 Aug 2013

This paper is behind a paywall.

For anyone not familiar with the fique plant,

The native Columbian fique plant, Frucraea Andina. (Credit: Vasyl Kacapyr)

The native Columbian fique plant, Frucraea Andina. (Credit: Vasyl Kacapyr)

I have mentioned Juan Hinestroza and the research he and his students perform on nano-enabled textiles a number of times including this May 15, 2012 posting on anti-malaria textiles.

Nanotechnology-enabled fashion at Cornell University

The image you see below is one of several featuring work from Cornell University’s Textiles Nanotechnology Laboratory,

Wearable Charging StationCredit: Textiles Nanotechnology Laboratory/Cornell UniversityAbbey Liebman, a design student at Cornell University in Ithaca, N.Y., created a dress made with conductive cotton that can charge an iPhone via solar panels.

Wearable Charging StationCredit: Textiles Nanotechnology Laboratory/Cornell University. Abbey Liebman, a design student at Cornell University in Ithaca, N.Y., created a dress made with conductive cotton that can charge an iPhone via solar panels.

It’s part of a May 7, 2013 slide show put together by Denise Chow at the LiveScience website. Also shown in the slide show are Olivia Ong’s anti-bacterial clothing (featured here in an Aug. 5, 2011 posting) and some anti-malarial clothing by Matilda Ceesay (featured here in a May 15, 2012 posting). I have more details about the textiles and the work but the pictures on LiveScience are better.

As I’ve not come across LiveScience before ,my curiosity was piqued and to satisfy it, I found this on their About page,

LiveScience, launched in 2004, is the trusted and provocative source for highly accessible science, health and technology news for people who are curious about their minds, bodies, and the world around them. Our team of experienced science reporters, editors and video producers explore the latest discoveries, trends and myths, interviewing expert sources and offering up deep and broad analyses of topics that affect peoples’ lives in meaningful ways. LiveScience articles are regularly featured on the web sites of our media partners: MSNBC.com, Yahoo!, the Christian Science Monitor and others.

Most of the science on LiveScience is ‘bite-sized’ and provides information for people who are busy and/or don’t want much detail.

Cornell University (New York State, US) celebrates 35 years of nanotechnology research

The festivities at Cornell University start on July 19, 2012 according to the July 9, 2012 news item by Anne Ju for the Cornell Chronicle,

Photonics, magnetics, biotechnology and energy are just a few areas in which the Cornell NanoScale Science and Technology Facility (CNF) has spent more than three decades connecting the brightest researchers with the best tools and expertise to make their scientific ideas real.

On July 19, CNF will celebrate its storied history of cutting-edge nanoscience research and discovery at its 35th anniversary and annual meeting.

Speakers will include Michal Lipson, professor of electrical and computer engineering, who will talk about manipulating light on a chip; and Jordan Katine, of Hitachi Global Storage Technologies and former Cornell postdoctoral associate, who will describe promising methods for making nanoscale magnetic devices.

The event’s keynote speaker will be William Brinkman, director of the Office of Science in the U.S. Department of Energy, who will address “Whither Nanoscience?”

Over the years, thanks in part to CNF, Cornell has helped “nanotechnology” become a household word: In 1997, a Cornell student used electron beam lithography to etch a red blood cell-sized guitar onto a silicon chip, a feat that garnered worldwide attention.

Cornell and CNF have stayed on the leading edge of nanoscale science. For example, in the last year, a low-pressure chemical vapor deposition machine for making graphene and carbon nanotubes was purchased through a grant, said Donald Tennant, CNF director of operations.

More than 700 researchers use CNF every year, and about half come from outside Cornell. A key goal of CNF is to have a low-overhead, open-access operating model and to level the playing field for researchers with limited resources, Tennant said.

You can find out more about the July 19, 2012 CNF event here. As for an opening address titled, Whither nanoscience? Doesn’t the word ‘whither’ give the address an old-fashioned flavour, something from the 19th century or perhaps from the bible (Whither thou goest, I will go [Ruth to Naomi])?

Meanwhile, on  July 20, 2012 there will be a special media briefing by Cornell and Stanford University (California) nanoscience researchers, from the July 13, 2012 news item on the Nanotechnology Now website,

On Friday, July 20, from 10 to 11 a.m. [EST], a special panel of nantechnology researchers will gather at Cornell University and explore the future of nanoscience during an interactive conversation with members of the media – both on site in Ithaca and online from anywhere in the world via WebEx technology.

Joining journalists for the discussion will be:

  • Juan Hinestroza, an associate professor fiber science, directs the Textiles Nanotechnology Laboratory at Cornell’s College of Human Ecology. His research on understanding fundamental phenomena at the nanoscale that are relevant to fiber and polymer science, has led to breakthrough “multifunctional fibers” that can hold or change color, conduct and sense micro-electrical currents, and selectively filter toxic gasses.
  •  ….

Media members are invited to take part, in person or online. To do so, please RSVP to John Carberry in Cornell’s Press Relations Office at 607-255-5353 or johncarberry@cornell.edu.

I last mentioned Juan Hinestroza in connection with work done by his students at Cornell University with textiles that give protection from malaria in a May 15, 2012 posting.

Textiles to offer protection from malaria and more about nanotechnology-enabled textiles

Textiles that harvest our energy to recharge the batteries for phones and other portable devices (for example, US Army research in my May 9, 2012 posting and British soldiers prepare to conduct field tests in my April 5, 2012 posting), that protect us from poison gases (my page on nanotechnology and textiles on the Nanotech Mysteries wiki), that clean pollution from the air (my Feb. 24, 2012 posting about Catalytic Clothing), and more  are currently being developed. It seems textiles used for passive protection and decoration and other forms of personal enhancement (body shapers, ‘lifts and separates’)  are becoming more active. One of the latest developments is a textile that protects from malaria. From the May 8, 2012 news item on Nanowerk,

A Cornell University scientist and designer from Africa have together created a fashionable hooded bodysuit embedded at the molecular level with insecticides for warding off mosquitoes infected with malaria, a disease estimated to kill 655,000 people annually on the continent.

Though insecticide-treated nets are commonly used to drive away mosquitoes from African homes, the Cornell prototype garment can be worn throughout the day to provide extra protection and does not dissipate easily like skin-based repellants. By binding repellant and fabric at the nanolevel using metal organic framework molecules – which are clustered crystalline compounds – the mesh fabric can be loaded with up to three times more insecticide than normal fibrous nets, which usually wear off after about six months.

“The bond on our fabric is very difficult to break,” said Frederick Ochanda, postdoctoral associate in fiber science and apparel design (FSAD) in the College of Human Ecology and a native of Kenya. “The nets in use now are dipped in a solution and not bonded in this way, so their effectiveness doesn’t last very long.”

I’m assuming that this design will be reworked to accommodate more average bodies (from Cornell University’s  ChronicleOnline April 30, 2012 article by Ted Boscia,

Sandy Mattei models a design by Matilda Ceesay '13, an FSAD apparel design major from Gambia, at the Cornell Fashion Collective spring fashion show April 28 on campus. Credit: Mark David Vorreuter

Boscia gives details,

The colorful garment, fashioned by Matilda Ceesay ’13, an FSAD apparel design major from Gambia, debuted at the Cornell Fashion Collective spring fashion show April 28 [2012] on campus. It consists of an underlying one-piece bodysuit, hand-dyed in purple, gold and blue, and a mesh hood and cape containing the repellant. The outfit is one of six in Ceesay’s collection, which she said “explores and modernizes traditional African silhouettes and textiles by embracing the strength and sexuality of the modern woman.”

Ceesay and Ochanda, who works with FSAD Associate Professor Juan Hinestroza, partnered with Laurie Lange, graduate student in Professor Kay Obendorf’s lab, to refine the process for capturing insecticides on the MOF-coated cloth. Hinestroza called the resulting garment “fashionable and functional, with the potential to create a new generation of durable and effective insecticide mosquito protection nets.”

The researchers are not pinning all of their hopes on the body suit (from Boscia’s April 30, 2012 article),

Ultimately, Ceesay and Ochanda hope the outfit they developed will serve as a prototype to drive new technologies for fighting the spread of malaria. On the horizon, Ochanda said, is an MOF fabric that releases repellant in response to changes in temperature or light — offering wearers more protection at night when mosquitoes are on the hunt. At minimum, they hope the technology can be applied to create longer lasting insecticide-laden bed nets.

Despite the use of mosquito nets, “people are still getting sick and dying,” Ceesay said. “We can’t get complacent. I hope my design can show what is possible when you bring together fashion and science and will inspire others to keep improving the technology. If a student at Cornell can do this, imagine how far it could go.”

Both the designer and scientist have a very personal stake in creating textiles that will repel malaria-borne mosquitoes (from Boscia’s article),

Ochanda and Ceesay, from opposite sides of the continent, both have seen family members suffer from the disease. Its prevalence in Africa — the source of 90 percent of the world’s malaria infections annually — can also lead to harmful misdiagnoses. Ceesay recalls a family member who died after doctors treated her for malaria when she had a different sickness. “It’s so common back home; you can’t escape it,” Ceesay said.

“Seeing malaria’s effect on people in Kenya, it’s very important for me to apply fiber science to help this problem,” Ochanda added. “A long-term goal of science is to be able to come up with solutions to help protect human health and life, so this project is very fulfilling for me.”

There’s no mention of how close this textile is to becoming a product and being offered in the marketplace. So, for anyone who’s generally interested in nanotechnology-enable textiles and possible economic impacts and business outlooks, Cientifica released its report, Nanotechnologies for Textile Markets in April 2012 (available for purchase). From the April 16, 2 012 news release and report description webpage,

While the traditional markets of apparel and home textiles continue to be impacted by nanotechnologies, especially in adding value through finishing and coating, the major opportunities for both textile manufacturers and nanomaterial suppliers lie elsewhere.

“Nanotechnologies for the Textile Market” takes an in depth look at the major textile markets – apparel, home, military, medical, sports, technical and smart textiles – detailing the key applications of nanotechnologies and the major players. The 255 page report contains  full market analyses and predictions for each sector to 2022, outlines the key opportunities and is illustrated with 98 figures and 30 tables.

Cientifica predicts that the highest growth over the next decade will be seen in the areas of smart and technical textiles.  In both of these areas a significant part of the added value is due to the innovative use of nanotechnologies, whether in fiber production or as a coating or additive.

With over a billion Bluetooth enabled devices on the market, ranging from smartphones to set top boxes, and new technologies such as energy scavenging or piezoelectric energy generation being made possible by the use of nanotechnologies , there are opportunities for the textile industry in new markets ranging from consumer electronics to medical diagnostics.

‘It’s a perfect storm” added Tim Harper [Cientifica’s Chief Executive Office], “the availability of new materials such as graphene, the huge leaps being made in organic electronics, and the move towards the Internet of Things is blurring the divide between textiles and electronic devices. When two trillion dollar markets collide there will be lots of disruption and plenty of opportunities.”

Cientifica does offer a free download of the report’s Table of Contents (ToC). Here’s a sample from the ToC which gives you a preview  of the report’s contents,

Objectives of the Report  21

World Textiles and Clothing  22
Overview of Nanotechnology Applications in the EU Textile Industry  24
Overview of Nanotechnology Applications in the US Textile Industry 25
Overview of Nanotechnology Applications in the Chinese Textile Industry  26
Overview of Nanotechnology Applications in the Indian Textile Industry  27
Overview of Nanotechnology Applications in the Japanese Textile Industry  27
Overview of Nanotechnology Applications in the Korean Textile Industry  29
Textiles in the Rest of the World 31
Macro and Micro Value Chain of Textiles Industry  32
Common Textiles Industry Classification  32
End Markets and Value Chain Actors 32
Why Textiles Go Nano 34
Nanotechnology in Textiles 34
Nanotechnology in Some Textile-related Categories 37
Technical & Smart Textiles 37
Multifunctional Textiles 39
High Performance Textiles 39
Smart/Intelligent Textiles 39
Nanotechnology Hype 41
Nanotechnology in Fibers and Yarns 43

Nanotechnology in Fabrics 47

Nanotechnology in Textile Finishing, Dyeing and Coating 55

Nanotechnology In Textile Printing 66
Green Technology — Nanotechnology In Textile Production Energy Saving 67

Electronic Textiles 67

Concept  67
Markets and Impacts 68
Current E-Textile Solutions and Problems 69
Nanotechnology in Electronic Textiles 78
Future and Challenges of Electronic Textiles  87
Summary of Nanotechnology Applications in Clothing/Apparel Textiles 90
Current Applications of Nanotechnology in Clothing/Apparel Textiles 91
Hassle-free Clothing: Stain/Oil/Water Repellence, Anti-Static, Anti-Wrinkle 91

The Guardian newspaper in an October 4,  2011 article by Colin Stuart offers a brief , comprehensive but cautionary overview of nanotechnology-enabled textiles (thanks for the tip, Tim Harper),

The manipulation of textiles is an age-old practice, starting with the furs of the animals we hunted. As agriculture and farming grew, we began to weave natural fibres, providing us with fabrics such as cotton and wool – sartorial staples we’ve relied on for centuries.

Unsurprisingly, the most mainstream use of nanotextiles is in clothing. The chances are you have some nanotextiles hanging in your wardrobe; wrinkle-free or non-iron garments have been engineered against creasing by coating the fibres with nanoparticles. Nanotechnology is also responsible for the stain-resistant fabrics found in both clothing and carpets. Tiny, nano-sized hairs are added to the surface of the material which stop liquids from being absorbed. …

The nano clothing of the future, however, could add even more functionality to the latest fashions. Tomorrow’s must-wear materials could hide piezoelectrics – nanotechnology that harvests the energy created as you rub against the fabric. Imagine walking along as your every move helps charge an iPod strapped to your belt.

But nanotextiles are not just confined to clothing; they are also being used in Asia in the battle against malaria. In 2010 a group of Thai researchers announced they had created mosquito nets laced with nanoparticles of pyrethroid, an insecticide. Pyrethroid had been combined with nets before, but doing so on the nanoscale means the particles are small enough to cling to the fibres even when washed. These nano-nets can last up to five years – a five-fold improvement on conventional netting.

The article goes on to establish concerns over environmental, health, and safety regulations but I thought it best to end with the mosquito nets and malaria, which is where this posting started, more or less.

Nano clothing takes Manhattan

Fiber scientist Juan Hinestroza has been making the media rounds lately about nanotechnology-enabled textiles/clothing. From the August 2, 2011 article by Jill Colvin for DNAinfo.com,

Imagine clothes that change color with the press of a button, charge your cell phone, clean the air, kill bacteria and repel stains so they never have to be washed again.

That’s the mission of Cornell University fiber science pioneer Juan Hinestroza, who’s leading the revolution to bring high-end function to high-end fashion in Manhattan.

Presenting his findings to a small group of reporters at Cornell’s ILR Conference Center in Midtown Tuesday, Hinestroza said that in less than a decade, he expects nanotechnology to be commonplace in the clothing industry.

It’s interesting to see this as I first came across Hinestroza’s work in 2007 when I was developing my Nanotech Mysteries wiki page, Scientists get fashionable.

copyright 2007 Cornell University) Design student Olivia Ong ’07 with garments, treated with metallic nanoparticles through a collaboration with fiber scientists, Juan Hinestroza and Hong Dong, that she designed for ‘Gliteratti’ collection.

(For permission to copy and use the image please contact, The Cornell Chronicle media office here: nwp2@cornell.edu or 607.254.6236.)

The fabric you see in the image cost, in 2007, $10,000 per square meter. I wonder what it would cost today?