University of Massachusetts – TechConnect Briefs

Development of a capillary-driven, microfluidic, nucleic acid biosensor

He F., Jin S., Dai M., Nugen S.R., University of Massachusetts, US

An ideal point-of-care device would incorporate the simplicity and reliability of a lateral flow assay with a microfluidic device. Our system consists of self-priming microfluidics with sealed conjugate pads of reagent delivery and an absorbent [...]

Design of a g-force meter on Si wafer, based on motor driven by photons

Valenzuela J., Mil’shtein S., University of Massachusetts, US

The fundamental limitations of the nano-scale motors driven by flux of photons are well understood. The amount of torque that can be obtained in any nano-scale structure is very low, presenting a real challenge to [...]

Synthesis, Extraction and Surface Modification Of (Zn,Mn)Se Nanocrystals Using Microemulsions As Templates

Heckler T., Qiu Q., Wang J., Mei B., Mountziaris T.J., University of Massachusetts, US

This research focuses on the novel room temperature synthesis of (Zn,Mn)Se quantum dots that exhibit luminescence peaks at longer wavelengths than the ZnSe bulk emission, due to the Mn ions incorporated in the ZnSe lattice. [...]

Linear scaling techniques for first-principle calculations of large nanowire devices

Zhang D., Polizzi E., University of Massachusetts, FR

This paper aims to provide a sound basis to face the challenges in large scale atomistic simulations for applications ranging from material sciences and chemistry to nanoelectronics and bio-nanotechnology. In nanoelectronics, large scale ’ab-initio’ simulations [...]

Uniform Polycarbonate Nanofibers Produced By Electrospinning

Kattamuri N., Sung C., University of Massachusetts, US

In the present work electrospinning of polycarbonate has been performed to produce nanofibers.Parameters like concentration,voltage,flow rate and distances were varied and an optimum condition of all the parameters was achieved to generate uniform ,smooth nanofibers [...]

DNA Translocation Across Protein Channels: How does a polymer worm through a hole?

Muthukumar M., University of Massachusetts, US

Conformational entropy of a polymer is reduced when the polymer confronts a narrow path. The reduction in entropy and the consequent free energy barriers control the polymer's translocation through narrow channels. Recent results on our [...]