The NNN Newsletter
Nanomaterials Regulations: Balancing Insight with Oversight
Emerging nanomaterials and nano-enabled consumer products are projected to have a significant, global impact on future economic, societal, and quality-of-life issues. The field of nanotechnology in general—and nanomanufacturing processes and nanomanufactured materials in particular—present a new regulatory paradigm for commercial sectors, academics, and government oversight and funding agencies alike. In essense, how do we responsibly maintain the critical balance between the necessity of regulatory oversight and the industry of scientific innovation?
The issues at hand are the extent to which governments ought to regulate manufacturers and suppliers that fall within new nanomaterials categories and the appropriate balance between industrial self-regulation and stringent government oversight. Exacerbating the decision making in this area are inferences of specific toxicity properties that have been reported based on less-than-comprehensive scientific studies, subsequent public dissemination of incomplete information by the media, and the rapid rate of change in science and technology which resists persistent modes of regulation.
Jeff Morse, Managing Director,
National Nanomanufacturing Network
Learn more about the NNN...
Report from National Science Foundation Workshop: Research Challenges for Integrated Systems Nanomanufacturing
The report from the NSF Workshop on Integrated Nanomanufacturing Systems is now available. The two-day workshop brought together approximately 25 leading experts to identify key issues for manufacturing of nanotechnology-enabled products and to begin the process of categorizing specific concerns for individual product technologies and segments. The goal of this workshop was to elucidate the key research challenges facing Integrated Systems Nanomanufacturing, thereby providing a roadmap of the near term and long term focus areas that must be addressed. The workshop also addressed the theory of systems-level behavior of integrated nanosystems, including how nanoscale phenomena ultimately affect the characteristics and operability of macroscale systems. More...
Hybrid Coaxial Nanotubes for Lithium Batteries
Reddy et. al. report in Nano Letters the synthesis and electrochemical testing of hybrid coaxial MnO2/Carbon Nanotube array electrodes for lithium battery applications. Such a hybrid nanostructure for Li-ion battery electrodes benefits from the high electrical conductivity of the nanotube core, while exploiting the high Li storage capacity of the porous MnO2 shell material. With the high aspect ratio of the hybrid nanotube configuration and the ultra-high surface area associated with the entire array, the potential exists to engineer the battery electrodes for long life while significantly enhancing the Li storage capacity. More...
Low Temperature Growth of Patterned ZnO Nanowire Arrays
One significant challenge in nanomanufacturing is the development of simple techniques to deposit or grow nanomaterials uniformly across large regions, while simultaneously controlling the spacing and arrangement of the individual particles or structures. Recent efforts to grow nanomaterials directly onto substrates or devices has met with some success, though challenges still remain in devising synthetic routes that are compatible with the standard lithographic approaches used to form integrated circuits. A recent article from Z. L. Wang’s group at Georgia Tech (Xu, et al., JACS, 2008, 130(45), 14958-14959) demonstrates a new technique to grow arrays of aligned ZnO nanowires onto a variety of inorganic substrates, without the use of metal catalysts or extreme synthesis conditions that could disrupt underlying device structures. More...
Read more on
February 22 - 27, 2009
SPIE Advanced Lithography
February 25, 2009
February 28 - March 4, 2009
Trends in Nanoscience
March 2 - 3, 2009
Greener Nano 2009
From Our Affiliates
Synthesis of Polyfluorenes with Pendant Silylcarboranes
Fluorophore-cored Dendrimers for Patterns in Metalloprotein Sensing
Chem Comm 2009(7):806-808
Heterogeneous Two-Level Logic and Its Density and Fault Tolerance Implications in Nanoscale Fabrics
IEEE Transactions on Nanotechnology 8(1):22-30
Chemical Modification of Chromium Oxide Surfaces using Organosilanes
J Colloid Interface Sci 331(1):138-142
Synergistic Effects of Mutations and Nanoparticle Templating in
the Self-Assembly of Cowpea Chlorotic Mottle Virus Capsids
Epitaxially Grown GaN Nanowire Networks
J Mater Chem 19:463-467
Airborn Nanoparticle Exposures Associated with the Manual Handling of Nanoalumina and Nanosilver in Fume Hoods
J Nanoparticle Res 11(1):147-161
Ultrathin Films of Single-Walled Carbon Nanotubes for Electronics and Sensors: A Review of Fundamental and Applied Aspects
Adv Mater 21(1):29-53
Temperature-Dependent Wettability on a Titanium Dioxide Surface
Molecular Simulation 35(1-2):31-37