Seminars

Abstract: This work is a part of a continuing program of study in the area of molecular design of materials. Network polymers formed by catalytic polymerization of di-cyclo-penta-diene (DCPD) is engaged as a model system due to its application in self healing materials. MD simulations are used to describe the evolution of the mechanical properties. Molecular dynamics (MD) simulations were deployed in order to predict differences in properties of network polymers as those formed by catalytic ring opening metathesis polymerization (ROMP) of DCPD.

Abstract: Successful scaling of unit operations is an important requirement in biopharmaceutical industry where process operations are distinguished by strict adherence to validation cGMP and regulatory guidelines. Robust process scaling relies on techniques and strategies that ensure predictable and consistent process operation on a large scale. Furthermore consideration of system design equipment effects process tie-ins and integration facility constraints and location effects all play an important role in establishing a robust process operation.

Abstract: Engineering a surface for desired properties is very important for many industrial and medical applications. The rational design of a surface requires fundamental understanding of the interactions between macromolecules and solid-liquid interfaces. The mechanical properties of an adsorbed layer are important factors for assessing the behavior of surfaces. The goals of the research described here are (i) to develop a new method to study protein cross-liking (ii) to control the rheological properties of a surface for use as a biosensor.

Abstract: Particle laden turbulent flows find applications in many industrial processes. There are strong interactions between the turbulent fluctuations in the fluid velocity fields and the velocity fluctuations of the particles. In order to understand the different physical properties such as stresses heat and mass transfer in turbulent suspensions it is necessary to have a good understanding of not just the mean flow of the gas and particles but also of the fluctuations in the two phases.

Abstract: Membrane based technologies have drawn considerable attention from diversified research communities due to their versatility energy and economic benefits enhanced process efficiency and ease of scaling-up.Synergy between the science of membrane materials and engineering of the membrane devices/processes has enabled the advancement of membrane technology. Currently membranes are widely used as reactor adsorber advance separation device drug delivery tool etc. in addition to their traditional use as separation media.

Abstract: I am broadly interested in biochemical and biomolecular engineering aiming towards emerging practical applications to green technology drug discovery and tailored therapy. My presentation will be centered on my previous research on systems biology genetic engineering and cell signaling. Specifically I would like to describe the application of genetic engineering strategies to improve the genetic stability of the baculovirus thereby reducing the virus mutant accumulation in suspension cell culture.

Abstract: An overview is presented of the research work on creation of advanced particulate materials through engineering of particles with applications to pharmaceutical bio energetic and specialty chemical materials. With respect to pharmaceutical applications the emphasis is on a more effective utilization of the unique properties of nano and sub-micron particles through structuring/engineering of the particulates with an ultimate aim of simplifying the manufacturing processes as well as formulations.

Abstract: Emulsions which are drops of one liquid dispersed in another immiscible liquid have a very broad range of applications including cosmetics the food industry and drug delivery. Microfluidics offers a promising route to fabricate these systems. In this talk I will discuss a novel microfluidic technique that we developed based on electrospray in coflow geometries to generate drops with an average size that can be tuned in an unprecedented range from well above to well below the smallest geometric feature of the device. The method relies on coupling electric and hydrodynamic forces.

Abstract: The early nanofluid experiments showed a fascinating increase in the thermal conductivity with very low nanoparticle volume fraction. While several experiments with well-dispersed nanoparticles have shown modest conductivity enhancements consistent with the Maxwell mean–field theory more instances of substantially larger enhancements are also reported in recent years.

Abstract: Nature is the master of engineering across a wide range of length scales from the nano to the macro. In contrast while human engineering is good at constructing three-dimensional (3D) devices and machines at the macroscale it faces considerable challenges at sub-millimeter length scales. At these small sizes while engineers have learned how to define complex devices such as computer chips and microelectromechanical devices they utilize methods that are inherently two-dimensional (2D).