Carlos F Guimaraes

Title: Carlos F. Guimaraes and Polysaccharide Hydrogel Optical Fibers.

Introduction

Carlos F. Guimaraes is an inventor associated with Leland Stanford Junior University in Redwood City, California. His work includes an invention that applies hydrogel optical fibers to sensing and biological research.

Latest Patents

Guimaraes is named on one patent: “Polysaccharide Hydrogel Optical Fibers and Their Fabrication and Use.” The invention describes optical fibers with wet-spun, multilayer hydrogel cladding made from ionically crosslinked polysaccharides. The fibers can use step-index or gradient-index architectures, support fusion splicing, and be doped with rare-earth ions.

The patent also describes incorporating plasmonic nanoparticles, functionalized light-sensitive quantum dots, or other particles into the fiber core. These materials can produce a resonance light shift when molecular biotargets bind, enabling biosensor applications. Integrated with medical swabs, the fibers may support rapid pathogen detection, including detection of SARS-CoV-2. The invention further describes using living cells in the fibers to measure biological responses, such as cancer-cell invasion and sensitivity to anticancer drugs.

Career Highlights

The available information identifies Guimaraes as an inventor on 1 patent and associates his work with Leland Stanford Junior University. The patent brings together hydrogel materials, optical sensing, and potential biomedical applications.

Collaborations

Guimaraes’s listed coworkers include Utkan Demirci and Rajib Ahmed. Their names are associated with the collaborative research context of the patented optical-fiber technology.

Conclusion

Carlos F. Guimaraes’s patented work explores how polysaccharide hydrogel optical fibers can support biosensing, pathogen detection, and the study of cellular responses.