Naval Research Laboratory – TechConnect Briefs

Catalytic Nanoparticles to Enhance the Sensitivity of Lateral Flow Immunoassays

Kidwell D.A., Wei E., Lanese J.N., Mulvaney S., Naval Research Laboratory, US

Lateral-flow immunoassays (LFIAs) are a widely used point- of-care technology. They are most familiar as home-pregnancy tests, but are also employed for testing for a wide variety of diseases, biomarkers, and even small molecules. By [...]

Improvement in Processing Parameters of 2nd Generation PEEK-like Composites for Advanced Application

Deese S.M., Naval Research Laboratory, US

Improvement in Processing Parameters of 2nd Generation PEEK-like Composites for Advanced Applications Stephen M. Deese,1 Matthew Laskoski2 1 ASEE Post-Doctoral Researcher 2 Acting Section Head, Advanced Materials Section, Code 6127 U.S. Naval Research Laboratory, 4555 [...]

Fire Resistant, 2nd Generation Resorcinol, PEEK™-Like Phthalonitrile Composites For Advanced Applications

Laskoski M., Keller T.M., Naval Research Laboratory, US

A new oligomeric 2nd generation resorcinol, PEEK™-like phthalonitrile resin has been developed via a cost-effective methods and is being transitioned to an industrial scale. The phthalonitrile monomer used to prepare composite components exhibits viscosities much [...]

Effective Multistep Exciton Delivery Through DNA-based Photonic Wires

Spillmann C.M., Buckhout-White S., Ancona M.G., Cunningham P.D., Melinger J.S., Goldman E.R., Medintz I.L., Naval Research Laboratory, US

Energy manipulation at the nanoscale is a key requirement to develop next-generation nanotechnologies ranging from biosensing to light harvesting, yet the design rules of these nanoscale systems must first be optimized to accomplish their intended [...]

Enhanced Kinetics of Enzymatic Nanosensors

Breger J., Walper S., Ancona M., Stewart M., Susumu K., Medintz I., Naval Research Laboratory, US

Nanosensors employing quantum dots (QDs) and functional moieties such as enzymes are promising for diagnostics and chemical/biological threat activity. Their small size permits cell penetration and their inherent photochemical properties are well-suited for rapid, optical [...]

Sensing voltage change across a lipid bilayer

Chen Y., Makinen A.J., O’Shaughnessy T.J., Efros A.L., Huston A., Susumu K., Stewart M.H., Delehanty J.B., Naval Research Laboratory, US

Developing nanoscale probes capable of real-time sensing and imaging of neuronal action potentials would be useful in understanding neuronal communication. However, current available tools for imaging action potentials lack either the spatial or temporal sensitivity [...]

Fluorescence Resonance Energy Transfer in Bioconjugated Quantum Dot-Dye systems

Khachatrian A., Melinger J.S., Jennings T.L., Susumu K., Huston A.L., Medintz I.L., Naval Research Laboratory, US

In this work we address the description of Fluorescence Resonance Energy Transfer (FRET) in a complex multivalent quantum dot (QD)/dye system by understanding how inhomogeneity affects the FRET dynamics of the acceptor dye molecules. Most [...]

Gated Carbon Nanotube Field Emission Enhancement and Regeneration by Hydrogen

Hsu D.S.Y., Shaw J.L., Naval Research Laboratory, US

We have previously demonstrated two different configurations of integrally gated carbon nanotube field emitter arrays (FEAs). CNTs were grown inside microfabricated gate apertures with and without silicon posts. Salient features of these in-situ grown microgated [...]

Characterization of Core/Shell Nanoparticles by X-Ray Absorption Spectroscopy

Calvin S., Carpenter E.E., Stroud R.M., Harris V.G., Naval Research Laboratory, US

X-ray absorption spectra of nanoparticles with iron cores and oxide shells, synthesized using the reverse micellar method, were collected at the National Synchrotron Light Source. Comparison of the x-ray absorption near edge structure (XANES) to [...]

Diamond Materials for MEMS and NEMS Structures and Devices

Butler J.E., Feygelson T., Sekaric L., Craighead H., Wang J., Nguyen C.T.-C., Naval Research Laboratory, US

Diamond materials offer great potential for many MEMS and NES applications. Amongst the attractive technological properties of diamond materials are the high stiffness, thermal conductivity, optical transparency range, chemical stability and erosion resistance, and dopant [...]