Long Van Chang

Title: Innovations of Long Van Chang: A Pioneer in Biosensor Technology

Introduction

Long Van Chang, an inventive mind hailing from Pearland, TX, has made significant contributions to the field of biosensor technology. With a total of six patents to his name, his innovative solutions have enhanced the capabilities of diagnostic sensors effectively. His latest inventions showcase the potential for better health monitoring and safety applications, propelling him to the forefront of technological advancements.

Latest Patents

Long Van Chang’s recent patents include two noteworthy inventions that highlight his ingenuity. The first patent is for a biosensor designed to detect a single magnetic label. This biosensor features a magnetoresistive (MR) film, which comprises a nonmagnetic layer sandwiched between two ferromagnetic layers. When positioned on a substrate, the edges of the MR film make contact with leads that interface with pads. This structure allows for a quasi-digital readout, resulting in significantly enhanced sensitivity. In some embodiments, the biosensors are organized as an array, either symmetric or asymmetric, providing flexibility in sensor deployment. These arrays can be coupled to a voltmeter, enabling simultaneous probing of all sensors.

Additionally, his invention of an ultra-sensitive volumetric magnetic particle detector presents a groundbreaking design for an inductive sensor aimed at quantifying magnetic particles. Departing from traditional methods that utilize wounded coils, Chang has created a design compatible with integrated circuit (IC) fabrication processes and printed circuit board (PCB) manufacturing. This innovative approach results in remarkable improvements in sensor sensitivity and accuracy. Furthermore, the sensor's design facilitates easy integration with lateral flow assay (LFA) technology, allowing for the detection and quantification of molecules, thereby contributing vital information related to health, safety, and environmental hazards.

Career Highlights

Throughout his career, Long Van Chang has collaborated with prominent institutions, prominently including the University of Houston System. His work has significantly advanced the field of biosensing and magnetic detection, merging academic knowledge with practical applications.

Collaborations

In his journey, Long Van Chang has worked alongside notable co-workers such as Dmitri Litvinov and Richard Coale Willson. These collaborations have allowed him to expand his innovative reach and push the boundaries of technology in sensing applications.

Conclusion

Long Van Chang's contributions through his six patents exemplify a commitment to innovation in biosensor technology. His ability to merge different technologies into robust sensing solutions not only showcases his inventiveness but also emphasizes the importance of continual advancement in scientific research. As he continues to develop new inventions, the impact of his work on health and safety applications is poised to grow exponentially.