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Protein Purification: Hands-on, Over 50 Projects Completed, Over 75 Proteins Purified
Expert has been actively involved in hands-on protein purification since 1985. Early work involved purification of enzymes and metal-binding proteins. From 1993 to 1997, as a Senior Scientist at a major biotech company, expert had very successfully developed methods for…
Omega-3 Oils, Oil Oxidation, Antioxidants, Modified Lipids, Edible Oil Processing
Experience in PUFA-enriched algal oil processing: extraction, refining, degumming, bleaching, winterization, fractionation, and deodorization • Experience in sensory evaluation of omega-3 oils • Experience in the development of omega-3 oil-enriched margarine and shortenings • Experience in preparation and sensory evaluation…
Nanotechnology, Biomaterials, Sol-gel Sciences, Optics, Biotechnology, Glass, Ceramics, Spectroscopy
Expert is a specialist of sol-gel chemistry. He developed a new non-aqueous method for sol-gel glass coating to obtain transparent films for integrated optics and photonics using polysiloxane materials. The aim was to obtain low-softening temperature glasses to permit facile…
Inorganic and Organic Synthesis, Structural Analysis, Spectroscopy
Dr. Chellama has designed and synthesized novel neutral dinuclear ruthenium complexes that can be used as Quantum dot Cellular Automata (QCA) cells, a new paradigm for improving computational density. Twenty-five novel dinuclear ruthenium complexes with various N-donor terminal ligands were…
Polymer Processing, Rheology and Composites, including Nanocomposites
Expert has personal experience with resin transfer molding and pultrusion. He has published work on modeling of pultrusion of vinyl ester composites. He teaches a graduate-level course on composite material processing. Expert has been doing research on polymer nanocomposites since…
Polymer Processing and Product Development (Films, Fibers, Nanofibers, Nanocomposites)
PROCESS/STRUCTURE/PROPERTY RELATIONSHIPS Expert has extensive experience and recognized accomplishments in process/structure/property relationships in polymers, especially processes involving polymer orientation and crystallization. Polymers in which he has primary experience include polyesters (PET, PEN, PBT, PTT, PLA), polyamides (PA6, PA66), and polyolefins…
Un-Rivaled Expertise in Problem Solving for Chemicals, Polymers and Plastic Industry.
Having worked 27 years in a world-class "Analytical Sciences" organization, he developed a unique expertise in solving complex problems. The latter sometimes led to "Discovery of New Concepts" that translated to new business growth. Successful case histories of complex problem…
Europe Based Chemical Process Development: Troubleshooting, Yield, Quality, Cost Reduction
When evaluating the level of process control, the expert uses the concept of "Quality Windows". He will quantify to what extend the process is erratic and how that contributes to the (lack of) capability of the process. Depending on the…
Physical Metallurgy, Materials Joining, Alloy Design, Computational Metallurgy, Thermodynamics
Arc welding is one of the most widely used metal joining technique. On a commercial scale, this is of vital importance and many of the metals are better arc welded to yield a strong joint. But, this also means there…
Teaching and tutoring of mathematics and physics;
There are two kinds of emission testing that Expert has done: sound pressure and sound power. Using sound pressure, Expert has determined local dB and/or dBA levels as well as measures of psychoacoustic metrics, such as Zwicker loudness, sharpness, intelligibility,…