"nano" The Magazine for Small Science

Our readers might be interested in this month's edition of nano magazine which features a short article entitled "Asbestos Repeated? Assessing Risk in Nanotube Technologies."  The article discusses the recent Poland/Donaldson paper published in nature nanotechnology that has been getting so much attention.  Beyond the article, this much recommended magazine is published in the UK and features articles on international nanotechnology research, development, and commercialization.  You can download a copy of the magazine here.  Be sure to sign up for future editions by emailing subs@nanomagazine.co.uk.

Has Nano Gone to the Dogs?

Because its Friday, and I just got back from an extended trip, I'm probably not a serious as I should be today (the caffeine is probably part of the equation too).  However, imagine my surprise this morning when I read about a company called "Nano Pet Products, LLC."  It didn't take long, but nano seems to have gone to the dogs.

Nano Pet Products is marketing a line of dog beds and apparel touted as "the most technologically advanced dog bed on the market. Using the performance fabric finishes NanoSphere® and ActiveSilver®, these beds stay clean and kill bacteria naturally, standing up to the wear and tear of the most active dog."  The "Dog Gone Smart Bed" and "Dog Gone Smart Wear" is being debuted at the Global Pet Expo in San Diego, wrapping up today.

There is no further information available on what "NanoSphere" or "ActiveSilver" is other than both are "based on nanotechnology."  Does this mean we should add our pets to the list of "family" members we should be concerned about exposing nanotechnology to (much like nano-based sunscreens?).  As you can see, my dog Simon loves his bed, nanotechnology or not, so maybe these guys are onto something?

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Caveat Emptor: All That is Nano May Not Be So

An interesting item came across my desk this morning.  A co-worker, while on the treadmill at the gym saw an add for "nanoSLIM" the "enormously powerful, impossibly small" dietary weight-loss supplement.  It is billed as a once per day supplement that is smaller than anything else available.  However, after purchasing a package of nanoSLIM, I noticed a couple of curious things.

First, nanoSLIM claims to use nanotechnology in its manufacturing process and features the trademarked and patent pending "Nano-Diffuse" technology.  While nanoSLIM does not define Nano Diffuse technology, other products that use this proprietary method describe it as, "Nano-Diffuse is a high tech process of micro-pulverizing the amino acid particles to a range of 2 to 50 microns in size using ultrasonic pneumatic machinery."  Other products that use Nano-Diffuse include Muscle Tech Nitro-Tech and SleepMD.

Second, on the nanoSLIM box, the manufactures state, "the key ingredients in nanoSLIM are pulverized into micron-sized particles."  And prominently featured at the words "Nanotechnology at Work."

However, I would caution readers to something you have probably already seen: nano and micro are not the same.  This brings to light a growing problem in the nano world--the use of "nano" as a marketing tool when nano really isn't involved (does everyone remember Magic Nano?).  Because these kinds of supplements are not tightly regulated by the Food & Drug Administration, just about anything goes.  While I'm not familiar with the technology being put to use, it sure feels like there is no nanotechnology here and the "nano" is used to draw attention to the product (which seems to be working given I purchased the second to last box on the shelf).

Oh, one other thing.  The warning on the box reads in part: "Not intended for use by persons under 18.  Do not use if pregnant or nursing.  Consult a medical doctor before use if you have been treated for, or diagnosed with, or have a family history of, any medical condition including (but not limited to) diabetes, or if you are using any prescription or over-the-counter drug."

Caveat emptor, indeed.

The Rise of "Nanoethics"

With all of the talk about new discoveries and advancements in nanotechnology, a new topic of discussion is coming to the surface.  The idea of nanoethics, "understanding of the risks and benefits of nanotechnology among scientists, policy makers and the general public," is being more widely discussed as the field grows and progresses.

A previous post on nanoethics appears here, and I'm seeing more and more discussion as the idea becomes part of the agenda.

We've already heard from The Nanoethics Group, and seen the journal NanoEthics, (no direct relation, I'm told), and now comes an anthology collection of 40 authors, Nanoethics: The Ethical and Social Implications of Nanotechnology,  that "gives the reader an introduction to and basic foundation in nanotechnology and nanoethics, and then delves into near-, mid-, and far-term issues. " 

While there is the expected crossover between these three items, authors from one will certainly appear in another's publication, the increasing volume with which nanoethics is being discussed is noteworthy. 

Responsible development of both the technology and any accompanying regulation cannot be made in a vacuum.  Consideration of the wider societal impacts, both positive and negative, is critical in order to have worthwhile discussions.   The ends of the spectrum have already been voiced: a complete lack of regulation on the developing science until more is known on the one hand, and a total moratorium on technological advancement until the risks are sufficiently understood and accounted for on the other.  While I can't speak for my co-authors, I believe the answer lies somewhere in the middle.  As to the second argument, the proverbial genie is out of the bottle--scientific advancement cannot be stopped at this stage.  R&D labs, universities, and private companies will continue to research and learn about nanotechnology.  As to the first argument, a complete disregard for the potential hazards that may develop is, at best, irresponsible. 

We've not heard the last of the nanoethics discussion, and quite the contrary, I think we're just hearing the beginning.  But that's just my opinion, I'd be curious to know what you think.

Nanotechnology: A New Weapon in the Battle Against Counterfeit Goods

By Laurie N. Jacques:

Counterfeiting is widespread because it is lucrative and often difficult to detect. Nanowerk highlights the use of nanotechnology in the battle against counterfeit goods. Nanoencryption provides a new option for distinguishing between genuine and counterfeit goods, particularly pharmaceuticals.

Drug counterfeiting is particularly problematic because it compromises patient safety in addition to causing monetary losses and erosion of brand value. The Center for Medicine in the Public Interest estimates that counterfeit drug sales are growing at an annual rate of about 13% – nearly the twice the growth rate of genuine pharmaceutical products – and could reach $75 billion by 2010.

Anti-counterfeiting strategies rely heavily on supply chain monitoring and control, which may include the use of specially printed labels and radio frequency identification (RFID) tags to identify products at the package level. These labels and tags are readily visible to counterfeiters who can then try to circumvent or replicate them. More importantly, their use is limited to tracking of package, not the package contents.

As the Nanowerk article explains, nanoencryption offers advantages in identification and monitoring of pharmaceutical products. Individual tablets of other unit doses may be tagged, not just the package that holds them and the tags are invisible to the naked eye. Authentication is quick and does not destroy the tablet so the tablet can be used later as evidence in a civil or criminal action. Nanoencryption also may be useful in authenticating other frequently counterfeited items such as currency, auto and aircraft parts, software, and luxury goods.

Where Science and Law Meet

The Nano Science and Technology Institute recently published an article, "Where Science and Law Meet," concerning the implications nanotechnology is having on intellectual property law.  As one would expect, patents are being filed for nanotechnology products in increasing numbers.  Given the complexities of both patent law and nanotechnology, there are unique implications when the two meet.  The article provides a good discussion on developments in intellectual property law.

Carbon Nanotubes Can "Swim"

Researchers at the Georgia Institute of Technology (Georgia Tech) have discovered that multi walled carbon nanotubes will remain suspended in water for a month or longer when combined with other organic materials.  The January issue of the journal Environmental Science & Technology , will fully report the findings by Assistant Professor Jaehong Kim, Professor Joseph Hughes, researcher John Fortner, and graduate student Hoon Hyung.  However, the initial conclusion from the experiments is that multi walled carbon nanotubes are easily dispersed throughout the environment due to their extended suspension in river water.  The nanotubes interacted with the organic material found in water from the Suwannee River, and as a result, remained suspended in the water.  As reported by Georgia Tech,  "Carbon nanotubes, which can be single- or multiwalled, are cylindrical carbon structures with novel properties that make them potentially useful in a wide variety of applications including electronics, composites, optics and pharmaceuticals."

This, of course, adds to the body of science regulators are looking to as the try to develop sound policy for governing nanotechnology.  Check back for updates as the full report on the experiment is released.

Nanotechnology Law Report: The Week In Review

Standardization: ASTM Releases "Terminology for Nanotechnology"

For those of you who have been paying close attention to nanotechnology issues, be them regulatory or otherwise, you've noticed that there does not seem to be any one standard for nanotechnology terms, including "nanotechnology."  While various organizations and agencies, such as the United States Environmental Protection Agency, American Bar Association, and Rice University, among others, have all provided somewhat similar definitions for "nanotechnology" and related terms, ASTM International (formerly the American Society for Testing and Materials) recently released its Standard for nanotechnology related terms.

ASTM, International, by its own description is, "one of the largest voluntary standards development organizations in the world-a trusted source for technical standards for materials, products, systems, and services. Known for their high technical quality and market relevancy, ASTM International standards have an important role in the information infrastructure that guides design, manufacturing and trade in the global economy."  ASTM, International develops many of the standard testing methods and procedures for scientific processes, and they have now created standard definitions for nanotechnology.

Standard E 2456-06 is a collection of definitions and terminology that should help to alleviate some of the confusion inherent in many organizations using slightly different definitions for nanotechnology related terms.  Because it is copyrighted material, it cannot be reproduced or linked here (the standard can be purchased at the above link).  However, terms addressed by the Standard include: nano, naoparticle, nanotechnology, and nanoscale. 

This release by ASTM, International is important because that organization is heavily relied upon for developing and maintaining many of the world's scientific standards and procedures.  The fact that they have now developed, what we hope to be, standardized definitions in the nanotechnology arena, helps to alleviate any confusion surrounding what is properly within the field of nanotechnology, and what is not.  This, in turn, frees up those working in the field to turn their attention to the substantive issues at hand.  While not binding on any organization or agency, the Standard reflects an attempt by several scientific organizations, including the American Institute of Chemical Engineers, NSF, International, the National Institute of Advanced Industrial Science and Technology, the Institute of Electrical and Electronics Engineers, the American Society of Mechanical Engineers, and the Semiconductor Equipment and Materials International to reach a consensus concerning the scope of nanotechnology.

UPDATE: Berkeley City Council to Consider Nanotechnology Regulation

On December 5, 2006 the Berkeley, California City Council began considering two municipal code amendments directly addressing manufactured nanoparticles.  As reported here earlier, the ordinance will amend two portions of the Berkeley Municipal Code, sections 15.12.040 and 15.12.050, to include reporting requirements for manufactured nanoparticles.  Those required to report are all "facilities" who produce or use manufactured nanoparticles.  The amendments call for written disclosure of "the current toxicology of the materials reported, to the extent known,and how the facility will safely handle, monitor, contain, dispose, tract inventory, prevent releases, and mitigate such materials."  The amendment further defines nanoparticles subject to disclosure as those "with one axis less than 100 nanometers in length."  If passed, after the required subsequent readings by Council and a vote, this will be the first known regulation aimed specifically at manufactured nanoparticles by a local government.

Nanotech Helping to Clean Water

Given all the news recently about possible environmental regulation of nanotechnology, the potential benefits of these new discoveries sometimes gets lost in the shuffle.  However, Rice University reported on November 16, 2006 that nanotechnology research shows promise in removing arsenic from drinking water.  Recent experiments conducted by the Center for Biological and Environmental Technology at Rice University resulted in arsenic removal from drinking water through the use of nano-sized rust particles.  The experiments are significant in that arsenic removal technology, as it currently exists, is both expensive and complicated because it uses high pressure pumps and needs electricity.  Researchers at Rice discovered that "nanorust," iron oxide particles, could be removed from water in the presence of a weak magnetic field.  In some instances, small, handheld magnets were enough to create the necessary magnetic force.  Researchers previously thought that given the size of the nanorust, only large electromagnets would remove the particles from water.  Iron oxide binds to arsenic extremely well, and such binding does not appear to impact the magnetic properties of the nanorust.  This technology shows promise for areas of the world that do not have reliable electricity or funding, such as Southeast Asia, and who need to remove high levels of naturally occurring arsenic from their water supplies.  This discovery may make it possible to decontaminate drinking water on a household scale without the use of electricity.