Weiwen Zheng

Title: Innovations of Weiwen Zheng in Lipid-Nucleic Acid Complexes

Introduction

Weiwen Zheng is a prominent inventor based in San Francisco, CA. She has made significant contributions to the field of lipid-nucleic acid complexes, holding a total of 8 patents. Her work focuses on enhancing the efficiency of in vivo delivery systems, which are crucial for various biomedical applications.

Latest Patents

One of her latest patents is titled "Preparation of stable formulations of lipid-nucleic acid complexes for efficient in vivo delivery." This invention provides lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection. The methods involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, which is then combined with a lipid comprising an amphiphilic cationic lipid. This complex can be further stabilized by adding a hydrophilic polymer attached to hydrophobic side chains. Additionally, the complex can be made specific for certain cells by incorporating a targeting moiety, such as an Fab' fragment attached to a hydrophilic polymer.

Another notable patent is "Methods for attaching proteins to lipidic microparticles with high efficiency." This invention provides methods for attaching proteins to lipidic microparticles with efficiencies of at least 77%. The proteins can include antibodies, hormone, growth factors, enzymes, or nucleic acid binding proteins. They can be chemically conjugated to linker molecules or fused to them by recombinant techniques.

Career Highlights

Weiwen Zheng is affiliated with the University of California, where she continues her research and development in innovative biotechnological solutions. Her work has garnered attention for its potential applications in drug delivery and therapeutic interventions.

Collaborations

Some of her notable coworkers include Demetrios P Papahadjopoulos and Keelung Hong, who have contributed to her research endeavors.

Conclusion

Weiwen Zheng's innovative work in lipid-nucleic acid complexes represents a significant advancement in the field of biomedical engineering. Her patents reflect her commitment to improving drug delivery systems, which could have a lasting impact on medical treatments.