Chen D. – TechConnect Briefs

Continuous Production of Polymer Coated Drug Crystals, Particles and Nanoparticles by Hollow Fiber Membrane-based Cooling Crystallization and Anti-solvent Crystallization

Sirkar K., Chen D., Singh D., Jin C., Pfeffer R., New Jersey Institute of Technology, US

Polymeric coating can provide protection for fragile drugs from hydrolysis and degradation. With an appropriate polymer coating, nanoparticles are known to traverse the physiological human mucous barrier. Such coatings are also integral to controlled drug [...]

Microscopic pore structures and controlling factors of the Micro- and Nano- Scale tight sandstone reservoirs in the Western Sichuan Depression, China

Wang Q., Chen D., Zhang B., Li L., China University of Petroleum, CN

Western Sichuan Depression (WSD) has a natural gas resource of about 31646.98×108 m3 and 251 commercial gas wells among which the largest single well productivity can be as high as 151×104 m3/d (Well X851), indicating [...]

Inherently Super-omniphobic Fibers and Fabrics

Truong Q., Zukas W., Welsh E., Stenhouse P., Brown P., Hoffman N., Mead J., Barry C., Mooney P., Sherer J., Panwar A., Koene B., Martin R., Cohen R., McKinley G., Kleingartner J., Chen D., U.S. Army Natick Soldier Research Development & Engineering Center, US

Work presented in this paper will introduce a process which modifies fiber geometry and its surface structure, and the resulting fabric’s weave structure with an additional structural level consisting of reentrant microtextural features that result [...]

CNT-polyamide nanocomposite membranes for gas and water separations

Marand E., Surapathi A., Chan W.F., Chen D., Chen H., Chen D., Chen H., Shao X., Johnson J.K., Virginia Polytechnic Institute and State University, US

We have developed asymmetric carbon nanotube/polyamide membranes for desalination applications. The carbon nanotubes are functionalized with zwitterionic groups that control the rejection of anionic species, while permitting the transport of water. Water flux measurements demonstrate [...]

CNT-polyamide nanocomposite membranes for gas and water separations

Marand E., Surapathi A., Chan W.F., Chen D., Chen H., Chen D., Chen H., Shao X., Johnson J.K., Virginia Polytechnic Institute and State University, US

We have developed asymmetric carbon nanotube/polyamide membranes for desalination applications. The carbon nanotubes are functionalized with zwitterionic groups that control the rejection of anionic species, while permitting the transport of water. Water flux measurements demonstrate [...]

Web Based Distributed Computing Environment for Nanotechnology

Chen D., Raghunathan A., Mashl J., Chiu S., Parker S., Aluru N., Jakobsson E., NCSA at UIUC, US

One promising path of computational nanoscience is the integration of device design tools and computational chemistry tools to design molecular device components. In order to improve the efficiency of the design process and also let [...]

Preparation of Monodispersed Silica and Composite Spheres

Tang F., Ding J., Chen D., Huang Z., Xia H., Meng X., The Chinese Academy of Sciences, CN

Nanoscale crystallites of metals or semiconductors, exhibiting unusual size-dependent electronic, magnetic, optical, and catalytic properties due to the onset of quantum effects, are being heralded as the next-generation building blocks for modern materials design. However, [...]