Research

Biomaterials

Biomaterials are critical components of biomedical devices and products. A novel biomaterial may create new fields of study and opportunities to tackle unmet clinical problems. Biodegradable polymers have been long recognized for their uses in many biomedical applications. Our laboratories have special interest in establishing methodologies for developing biodegradable polymers for tissue engineering, drug delivery, and cellular/tissue bioimaging applications.

In recent years, citrate-based biomaterials have become an intense focus of research in the search of new functional biomaterials for solving pressing medical problems. Citric acid, historically known as an intermediate in the Krebs cycle, is a multifunctional, nontoxic, readily available, and inexpensive cornerstone monomer used in the design of citrate-based biomaterials. In addition to the convenient citrate chemistry for the syntheses of a number of versatile polymers that may be elastomeric or mechanically strong and tough, injectable and photocrosslinkable, fluorescent and MR imaging-able, and/or tissue adhesive, citric acid also presents inherent anti-bacterial and anti-clotting characteristics, which make citrate biomaterials ideal for a number of medical applications. Furthermore, more recently studies have started revealing the intriguing biological regulation of citrates for tissue regeneration, especially for bone regeneration. All these features make citrate biomaterials promising and worth further developing. Yang lab has developed a methodology for the design and biomedical applications of citrate biomaterials. Specific applications include blood vessel, bone, and nerve regeneration, micro/nano-composites for orthopedic devices, bioinspired adhesives for wound healing, materials/cells/tissue bioimaging (fluorescence, MRI, photoacoustic imaging), immune cell-mediated cancer drug delivery, and point-of-care chloride sensing for cystic fibrosis diagnosis.

 

Tissue Engineering and Stem Cells

 

Finding suitable biomaterials and tissue engineering strategies are challenging the success of tissue engineering. We are working on mulitple tissue engineering projects such as cardiovascular tissue engineering and bone tissue engineering. We are very interested in developing a design strategy for synthesizing new biomateirals that may innately mediate stem cell differentiation based on the evovling udnerstanding of developmental biology and dynamic biomaterial/cell/tissue interactions. We are working on understanding the interactions between citrate-based polymers and mesenchymal stem cells.

Some specific topics inculde small diameter blood vessel tissue engineering, cardiac tissue engineering, long-bone regeneration, injectable cements for treating osteonecrosis, nerve tissue engineering etc.

Medical devices

 

1: Biodegradable coronary artery stents and gastrointestinal (GI) stents;
2: Orthopedic fixation devices;
3: Injection solutions for endoscopic mucosal resection;
3: Biomimetic adhesives (bioglue) for surgery

 

 

Positions

 
PhD candidates: We are always seeking for highly self-motivated and intelligent PhD students to work on Biomaterials, Stem Cells, Drug Delivery, and Tissue Engineering projects. Students who have a strong background in any of the following disciplines: bioengineering, chemical engineering, material science engineering, chemistry, biology are all welcome to apply.  

Home | Research | People | Publications | Patents | Courses | resources | News
Web site and all contents Copyright 2007-2015, All rights reserved.