Nissanke L Dassanayake

Title: **Nissanke L Dassanayake: Innovating Biocide Applications**

Introduction

Nissanke L Dassanayake, based in Arlington, TX, is an accomplished inventor with a remarkable portfolio of 20 patents. His work primarily focuses on advancing methods related to the use of cationic biocides in various applications, particularly in medical devices and ophthalmic compositions. His innovative approach to biocides has the potential to enhance product safety while maintaining efficacy.

Latest Patents

Nissanke L Dassanayake has made significant strides in the field with his latest patents. One of his notable inventions is aimed at **Interaction control of cationic biocides using labile anionic polyelectrolytes**. This patent outlines methods for inhibiting the uptake of cationic biocides in medical devices such as contact lenses and implants. Furthermore, the invention provides methods for stabilizing emulsions containing cationic biocides. A key feature of this invention is the use of polymers, specifically galactomannan and polyvinyl alcohol, that act as labile anionic polyelectrolytes capable of reversibly binding cationic biocides. This reversible binding mechanism helps to minimize the adverse effects of cationic biocides while preserving their biocidal activity.

Another significant patent involves the **Use of nanoparticles as carriers for biocides in ophthalmic compositions**. This innovation describes the application of inorganic nanoparticles, such as synthetic smectite clays, as biologically inert carriers or depots for biocides. Notably, these nanoparticles are instrumental in preventing the uptake of biocides by contact lenses when ophthalmic compositions are applied, thereby enhancing safety and efficacy in their use.

Career Highlights

Throughout his career, Nissanke has contributed to major advances in the biomedical field, particularly through his work at **Alcon Laboratories, Inc.** and **Alcon Manufacturing, Ltd.** His experience at these leading companies has been integral to his development of innovative solutions in biocide applications.

Collaborations

Nissanke has worked alongside esteemed colleagues such as Ronald L Schlitzer and Joonsup Park. Their collaborations have fostered an environment of innovation, leading to the successful development of groundbreaking technologies in the biocide domain.

Conclusion

Nissanke L Dassanayake stands out as a notable inventor whose contributions are shaping the future of biocide applications in medical technology. His patents reflect a commitment to enhancing safety and effectiveness in the fields of medical devices and ophthalmic solutions. As he continues to innovate, his work offers promising advancements for the industry and the users of medical technologies.