US – Page 127 – TechConnect Briefs

Different contribution of carbon nanotubes and graphene oxide in single nucleotide polymorphism for the diagnosis of human mad-cow disease

Choi W., Lee J-H., Luminescent MD, LLC, US

Rapid single nucleotide polymorphism (SNP) with 1,1’-oxalylimidazole chemiluminescence (ODI-CL) detection was developed for the early diagnosis of human mad-cow disease. Mutated single strand DNA (ssDNA) sequence discovered from patients having human mad-cow disease rapidly hybridize [...]

Combination of magnetic and non-magnetic graphene oxide to develop chemiluminescent aptasensor capable of rapidly quantifying tumor markers

Choi H-K, Park L., Kim J., Lee J-H., Luminescent MD, LLC, US

Rapid and sensitive chemiluminescent aptasensor capable of rapidly sensing tumor markers in human serum with the combination of magnetic and non-magnetic graphene oxide. Human serum (150 µl) containing tumor markers (e.g., AFP and PSA) was [...]

Background free biosensor using the combination of graphene oxide and Fe3O4 nanoparticles

Cho S., Park L., Chung R., Lee J-H., Luminescent MD, LLC, US

Cost-effective and rapid biosensor with background free chemiluminescence (CL) detection was developed using ssDNA aptamer-conjugated 6-FAM fluorescein (DAF), graphene oxide bound with magnetic nanoparticle (GMN), and 3,4,5-trimethoxyphenylglyoxal (TMPG). When thrombin was incubated in TE buffer [...]

Synthesis and Magnetic Properties of Double Perovskite La2BMnO6 (B = Ni or Co) Nanoparticles

Mao Y., Parsons J.G., McCloy J.S., University of Texas-Pan American, US

Double perovskite oxides with the general formula AA’BB’O6 (where A and A’ are rare earth or alkaline earth metals, and B and B’ are d-block transition metals) display a wide variety of interesting physical properties [...]

The manifestation of the one-dimensional non-collinear spin-dependent scattering on magnetized nano-element structures

Sahakyan A.S., Movsesyan R.M., Kocharian A.N., California State University Los Angeles, US

The transfer-matrix approach is used to investigate the scattering of spin-polarized electron and neutron waves on the simple magnetized nanoelement structures which energetic profiles presents a finite potential magnetic barrier, in particular, of rectangular form. [...]

Understanding the Biological Impact of Nanoengineered Surfaces

Casey B.J., Kumar G., Petrochenko P., Skoog S.A., Narayan R.J., Goering P.L., Dair B.J., U.S. Food and Drug Administration, US

There is a growing trend in the medical device industry to manipulate the surface topography of a device with nanoscale features in order to promote advantageous biological responses such as better tissue integration and/or faster [...]

Omniphobic Coatings for Self Cleaning and Enhanced Chemical/Biological (CB) Agent Protective Clothing

Truong Q.T., Koene B.E., US Army Natick Research, Development, and Engineering Center, US

An omniphobic coating that employs a dual hierarchical micro and nano surface structure was developed. This dual-size structured omniphobic coating was proven to be more durable than the commercial durable water repellant coating such as [...]

Effect of superhydrophobic nanocomposite surface roughness on anti-icing performance

Davis A., Yeong Y.H., Steele A., Loth E., Bayer I.S., University of Virginia, US

While past work has shown the ice-phobic potential of a superhydrophobic surface or noted the effect of surface area on ice adhesion to an array of microposts, questions still remain on the effect of a [...]

Surfactant-Activated Microgels

Chari K., Hsu R., Bhargava P., Figura B., Yang W., Park J., Clifford T., Kadir M., Benedikt G., Lubrizol Advanced Materials, US

We describe a new class of nonionic (non-polyelectrolyte) microgels comprising crosslinked amphiphilic copolymers of alkyl acrylates and hydroxyalkyl esters that are activated by surfactant instead of pH. We discuss the mechanism of action of these [...]

Microcharacterization of Creep Behavior of Carbon Nanofiber Reinforced HDPE Nanocomposites using a Depth Sensing Method

Xu S., Liu T., Tangpong X.W., Akhatov I., Zhong W-H., North Dakota State University, US

Depth-sensing indentation at micro- and nano-scale levels is a useful tool for material characterization due to its simplicity. There are many well-established methods for determining local mechanical properties including elastic modulus, hardness, and fracture toughness [...]