http://smartech.gatech.edu/handle/1853/14205 Semimonthly seminars hosted by the Nanotechnology Research Center. Search the Channel search http://smartech.gatech.edu/simple-search http://smartech.gatech.edu/handle/1853/31077 Title: Nanotechnology for Chemical and Biological Defense: Policy, Programmatics, and Threat Anticipation <br/> <br/>Authors: Kosal, Margaret E. <br/> <br/>Abstract: The pursuit of the minutely small “nanotechnology” is thriving in academia, in the private sector, and in global state science and technology programs. Through the science fiction of Star Trek and other quasi-fictional works, the notion of nanotechnology has entered the collective public psyche. To date, three broad topics have dominated discussion regarding nanotechnology risk: health and environmental consequences, privacy and legal implications, and uncontrolled self-replication and artificial intelligence. Security implications, both for traditional nonproliferation regimes and for potential misuse by non-state actors, have not received commensurate attention. At the same time, policy makers and the scientific community, domestically and internationally, are attempting to develop new means to address risks associated with biotechnology. As 21st century science and technology intrinsically traverses traditional borders “academic, public-private, and international” previous models are inadequate. Through examination of civilian and defensive applications (nanotechnologically-enabled countermeasures) and hypothetical offensive uses, the goal is to develop an analytic model to probe security questions surrounding this emerging technology. Recognizing and developing a robust analytical framework to assess implications of this emerging technology is an unexplored, cutting-edge research area for international security. Alternatively, the future may grapple with a nanotechnology A.Q. Khan. <br/> <br/>Description: Dr. Margaret E. Kosal from the Sam Nunn School of International Affairs at the Georgia Institute of Technology, presented a lecture at the Nano@Tech Meeting on October 27, 2009 at 12 noon in room 1116 of the Marcus Nanotechnology building. http://smartech.gatech.edu/handle/1853/31076 Title: Nanopantography: A Method for Parallel Writing of Etched and Deposited Nanopatterns <br/> <br/>Authors: Donnelly, Vincent M. <br/> <br/>Abstract: Nanopantography is a radically different approach for parallel writing of pre-selected nanopatterns over large areas. Arrays of micro-electrostatic lenses (e.g., small round holes through a metal/insulator structure) on a substrate such as a silicon wafer focus ion beamlets at the bottoms of the holes. When the wafer is tilted, the focal points in each hole are laterally displaced, allowing the focused beamlets to be rastered across the hole bottoms and write patterns in a massively parallel manner. Examples will be given of Si nanoetching and Ni nanodot deposition. <br/> <br/>Description: Professor Vincent M. Donnelly from the University of Houston, presented a lecture at the Nano@Tech Meeting on October 19, 2009 at 12 noon in room 1116 of the Marcus Nanotechnology building. http://smartech.gatech.edu/handle/1853/30212 Title: Electron Beam Lithography Fabricated Carbon Nanofiber Sensor for Water Based Biohazards <br/> <br/>Authors: Brown, Devin K. <br/> <br/>Abstract: The Nanotechnology Research Center has partnered with Early Warning, Inc. to fabricate a sensor for detection of biohazards in water. The biosensor platform technology has been licensed to Early Warning by NASA and was originally designed with the intent to detect pathogens in remote space environments. Each target pathogen has its own working electrode which contains bioprobes of single strands of nucleic acids attached to the tips of the ultrasensitive carbon nanofibers. When the single strands of RNA from the sample come into contact with the bioprobes, complementary strands hybridize into double helices. A potential scan is applied and guanine oxidation causes a flow of electrons that is conducted by the nanowires. A ruthenium mediator amplifies the signal. These signals are calibrated with known values and can indicate the concentration levels of the target pathogen. The carbon nanofibers are grown in an Aixtron Black Magic CVD system using a substrate patterned with 100 nm diameter catalysts. The catalysts are fabricated with a JEOL JBX-9300FS electron beam lithography system using a liftoff process with polymethyl methacrylate resist. <br/> <br/>Description: Devin K. Brown from the Nanotechnology Research Center, at the Georgia Institute of Technology, presented a lecture at the Nano@Tech Meeting on September 22, 2009 at 12 noon in room 1116 of the Marcus Nanotechnology building. http://smartech.gatech.edu/handle/1853/29802 Title: How Interdisciplinary is Nano? <br/> <br/>Authors: Porter, Alan L. <br/> <br/>Abstract: Nanotechnology is commonly viewed as being multidisciplinary, although several studies of the multidisciplinary characteristics of nanotechnology find the term to be an umbrella expression for what in fact are unconnected fields. Alan Porter will present results from his recent work which draws on a database of nearly 500,000 nanoscience and engineering publications. His results locate nanotechnology amidst materials science, physics, and chemistry. By focusing on the cited references in these articles, he shows that nanotechnology articles cite on a diverse range of disciplinary areas. <br/> <br/>Description: Alan Porter, a Professor Emeritus of Industrial & Systems Engineering, and of Public Policy, at the Georgia Institute of Technology, presented a lecture at the Nano@Tech Meeting on August 25, 2009 at 12 noon in room 1116 of the Marcus Nanotechnology building.