Gregory Stephen Lewis

Title: Gregory Stephen Lewis: Innovator in Nanoparticle Deposition

Introduction

Gregory Stephen Lewis is a distinguished inventor based in Berkeley, CA, with an impressive portfolio of 25 patents. His work primarily focuses on the deposition of nano-sized particles and advanced methods related to air-liquid interfaces, making significant contributions to the fields of materials science and engineering.

Latest Patents

Among his latest innovations, Gregory has developed two noteworthy patents:

1. **Efficient deposition of nano-sized particles onto cells at an air-liquid interface:** This invention encompasses an apparatus and method designed for the delivery and deposition of particles onto air-liquid-interface cell cultures. The setup features a sample inlet connected to a growth tube, facilitating varying temperature control along its lengths and ensuring optimal conditions for cell cultures. The apparatus is equipped with a nozzle plate filled with multiple nozzles and a precisely controlled exposure chamber that maintains relative humidity to support cell growth.

2. **Pulsed diffusion condensation particle counter:** This innovative method and apparatus create water vapor supersaturation, allowing for effective particulate counts from an air sample. It involves introducing an air sample into a chamber linked to an optical detector. The method emphasizes a steady flow and a unique control over various parameters to facilitate condensational growth and accurate measurements, thereby enhancing the understanding of particulate matter in the air.

Career Highlights

Gregory has worked with several companies that have played significant roles in his career, including Aerosol Dynamics Inc. and LSI Logic Corporation. Through these positions, he has accumulated valuable experience and expertise that have contributed to his advancements in nanotechnology and particle measurement techniques.

Collaborations

Throughout his professional journey, Gregory has had the opportunity to collaborate with notable colleagues such as Susanne Vera Hering and Steven Russel Spielman. These collaborations have likely influenced his innovative approach and enriched his contributions to the scientific community.

Conclusion

Gregory Stephen Lewis exemplifies the spirit of innovation through his extensive patent portfolio and groundbreaking inventions. His work in nanoparticle deposition and air sample measurement highlights his commitment to advancing technology and enhancing our understanding of complex scientific phenomena. As he continues to push the boundaries of research and development, Gregory remains an influential figure in the field of materials science.