Zhang X. – Page 3 – TechConnect Briefs

Guided Self-Assembly of Block-Copolymer Nanostructures

Karim A., Berry B.C., Kim H-C, Kim S., Zhang X., Bosse A.W., Lacerda S.H., Yager K.G., Jones R.L., Douglas J.F., Briber R.M., Kim H-C, Kim S., NIST, US

A primary limitation of block copolymer films as templates for next generation electronic or data storage devices is the prohibitively long times required for thermally driven self-assembly and defect annihilation and long range order development. [...]

Adsorption/Desorption of Cd by Titanium Dioxide Nanoparticles and Sediment Particles as well as Their Facilitated Bioaccumulation of Cd into Carp

Zhang X., Chen Y., Sun H., Crittenden J.C., Arizona State University, US

There are increasing concerns about the health and environmental impact of nanomaterials. The study of Sun et. al 2006 provided the evidence of facilitated bioaccumulation of As(V) in carp in the presence of titanium dioxide [...]

A Carrier Based Analytic Model for Undoped Surrounding-Gate MOSFETs

He J., Zhang X., Chan M., Wang Y., Peking University, CN

A carrier-based analytic DCIV model for the undoped cylindrical surrounding-gate MOSFETs is presented in this paper. It is based on an exact solution of the Poisson equation and a Pao-Sah current formulation in terms of [...]

Benchmark Tests on Conventional Surface Potential Based Charge-Sheet Models And the Advanced PUNSIM Development

He J., Song Y., Niu X., Zhang G., Zhang X., Zhang G., Zhang X., Huang R., Chan M., Wang Y., Peking University, CN

This paper reports the benchmark test results of surface potential solution, inversion charge and channel current calculation, and short-channel effect model of various surface based charge-sheet models and our PUNSIM development to breakthrough the drawbacks [...]

Zeolite Membrane Microreactors for Fine Chemical Synthesis

Zhang X., Lai S.M., Lam K.F., Yeung K.L., Martin-Aranda R., Hong Kong University of Science and Technology, CN

The performance of a membrane microreactor was tested and compared with that of microreactor, packed bed reactor (PBR) and packed bed membrane reactor (PBMR) for the Knoevenagel condensation reaction of benzaldehyde and ethyl cyanoacetate to [...]

Guided Neurite Growth on Patterned Carbon Nanotubes

Zhang X., Prasad S., Niyogi S., Ozkan C.S., Ozkan M., Ozkan C.S., Ozkan M., University of California Riverside, US

Nanomaterials substrates are suitable for functioning as cell scaffolds. Promotion of axonal growth and support for long distance regeneration are the two requirements in the various experimental strategies for spinal cord repair. Organic systems’ performance [...]

Direct Scanning Laser Writing of 3D Multilayer Microstructures

Yu H., Li B., Zhang X., Boston University, US

Material processing with lasers is an expanding field since it not only makes manufacturing cheaper, faster, cleaner, and more accurate but also opens up entirely new technologies and manufacturing methods that are simply not available [...]

Pumping Capacity and Reliability Study on Silicon-Based Cryogenic Micro Pump

Zhao Y., Li B., Ludlow D., Zhang X., Boston University, US

As part of a program to develop a cooling system for satellite instrumentation capable of working at cryogenic temperature, we present herein pumping capacity and material reliability study on a silicon-based cryogenic micro pump which [...]

Modeling and Optimal Design of High Sensitivity Piezoresistive Microcantilevers for Biosensing Applications

Yang M., Zhang X., Ozkan C.S., University of California Riverside, US

We discuss the mechanical design and optimization of piezoresistive microcantilevers for use in detecting changes in surface stress upon analyte-receptor binding. Conventional microcantilevers are used along with an optical detection system in many commercially available [...]

The Design of a Biaxial Micro Mirror

Zhang X., Yao Y., Wang G., Huang L., Han N., Intpax Inc., US

Insights are developed for the design of an electrostatic actuated biaxial micro optical mirror. The relation among the pull-in angle, lift space, electrode size and applied voltage are derived and the simplification is achieved. The [...]