Kennedy A.J. – TechConnect Briefs

Advancing Sustainable Manufacturing of Carbon Nanomaterials and Devices through Life Cycle Assessment

Shih W-S, Chappell M.A., Kennedy A.J., Brewer Science, Inc, US

Responsible development of nanotechnology and fostering nanotechnology into products for commercial and public benefit are two of the four long-standing National Nanotechnology Initiative (NNI) goals [1]. To achieve these goals, nanotechnology-related environmental, health, and safety [...]

Environmental Life Cycle Assessment for a Carbon Nanotube-Based Printed Electronic Sensor Platform

Chappell M.A., Shih W-S, Bledsoe J.K., Cox C., Janzen D., Gibbons S., Patel R., Kennedy A.J., Brame J., Brondum M., Diamond S.A., Coleman J., Edwards D., Steevens J.A., U.S. Army Engineer Research & Development Center, US

Here, we describe efforts to characterize the potential environmental impact associated with the manufacture of a newly developed printed electronic temperature sensor using environmental life cycle assessment (Eco-LCA). The sensor is composed of a specialized [...]

Health and Safety Screening of Advanced Materials: A User Interface for Test Design Selection and Documentation

Kennedy A.J., Brame J., Wood M., Rycroft T., Poda A., Diamond S., Chappell M., Shih W-S, Panchal V., US Army Engineer Research and Development Center, US

The novel properties of advanced materials (AdMs), including nanomaterials (NMs), offer opportunities to improve conventional materials and create new material applications. However, these same properties may place AdMs into a high risk prioritization category within [...]

Gaining critical mass: A dose metric conversion study using silver nanoparticles

Kennedy A.J., Hull M.S., Diamond S., Chappell M., Bednar A., Bednar A.J., Bednar A., Bednar A.J., Steevens J.A., US Army Engineer Research and Development Center, US

Mass is still the standard dose metric applied in the nano(eco)toxicology literature. Greater particle surface area or number may be more relevant dose metrics than mass to represent particle interactions with biological surfaces. This investigation [...]

The Effect of Photolysis on the Stability and Toxicity of Silver Nanoparticles

Poda A.R., Kennedy A.J., US Army Corps of Engineers, US

The objective of this study was to determine the effect of solar irradiation on the aggregation kinetics and toxicity of a 50 nm silver nanoparticle capped with two different stabilization agents (polyvinylpyrrolidone (PVP) and citrate). [...]