Darrell Cheng Email & Phone Number

Rancho Cucamonga, Ca

Organize and conduct product development studies for FDA applications and correspondence including stability programs, design of experiments (DOE), compatibility studies and other research following GMP.Optimized lyophilization processes using DOE to set a design space and to model process parameters.Redesigned a compounding process to solve urgent issues related to component loss for GMP stability lots.Reduced particle size test variability for an inhaler product from above 15% RSD to less than 5% RSD.Develop, validate, and execute analytical chemistry methods (UPLC/HPLC, ICP-MS, GC, IC, etc.) for evaluation of quality attributes including product or excipient assays, impurities, ID, water content, etc.Compose documents including validation protocols, reports, standard operating procedures and notebooks.

Irvine,Ca

Led a study of concentration and temperature effects on DNA hybridization rates via computer simulations. Created a regression analysis tool that calculated DNA assembly rates from large sets of simulation data.Refined simulation model factors based on systematically planned and executed experiments.Authored research proposals to secure $3,000 of funding for an individual research project.Programmed Python scripts to process, analyze and visualize data sets for publications

Irvine, Ca

Launched a project that successfully raised funds for donation to charities through the sale of clothing.Generated $2,400 in revenue within three months and donated profits to a local charity.Coordinated with a small team to manage budgeting, advertising, supply, and distribution.Forged relationships with charity organizations through volunteering and publicized the project.