Company Filing History:
Years Active: 1993-1995
Title: Innovations of Junguo Zhao
Introduction
Junguo Zhao is a notable inventor based in Chapel Hill, NC (US), recognized for his contributions to the field of electrochemical sensors. With a total of 6 patents, Zhao has developed innovative devices that enhance the detection of lead levels in various samples.
Latest Patents
One of his latest inventions is the colloidal-gold electrosensor measuring device. This device provides a new method for measuring lead levels in biological and environmental samples. Utilizing square wave coulometry and colloidal gold particles on carbon electrodes, it offers a rapid, reliable, portable, and cost-effective means of detecting low lead levels. The colloidal gold modified electrodes exhibit microelectrode array characteristics, producing significantly higher stripping detection signals for lead compared to bulk gold electrode surfaces. This method effectively determines lead levels down to at least 5 µg/dL in blood samples as small as 10 µL.
Another significant patent is the electrochemical immunoassay method. This electro-immunosensor can determine the presence of a wide range of analytes in solution. It features a one-step procedure for determining subnanogram levels of analytes. The novel immunosensor consists of an analyte binding agent bound to an electrode and an analyte/enzyme conjugate bound to the analyte binding agent, forming a catalytic electrical circuit. The displacement of the conjugate by the analyte results in a proportional decrease in current. Additionally, the immunosensor can be adapted to detect two analytes simultaneously by using different enzymes conjugated to the analyte binding agents.
Career Highlights
Throughout his career, Junguo Zhao has worked with various companies, including Andcare, Inc. and Enzyme Technology Research Group, Inc. His innovative work has significantly impacted the field of electrochemical sensing.
Collaborations
Zhao has collaborated with notable individuals such as John P O'Daly and Robert W Henkens, contributing to advancements in his field.
Conclusion
Junguo Zhao's innovative inventions and patents reflect his dedication to improving detection methods in biological and environmental samples. His work continues to influence the field of electrochemical sensors and highlights the importance of innovation in technology.