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he cell-environment communication is a dynamic procedure. Therefore, when biomaterials are developed for regulating cell
behavior, the functionality of biomaterials needs to be regulated in a dynamic manner to satisfy dynamic cell requirements.
To this end, we have developed a new generation of adaptive hydrogels that can mimic the functions of extracellular matrices
(ECMs). ECMs have complicated, dynamic functions. The artificial ECMs play three critical roles when interacting with cells.
First, the hydrogel networks are used as the fundamental structural support to provide cells with a biocompatible environement
to survive. Second, multiple growth factors can be sequentially released at desired time points. Third, the interactions between
cell recpetors and aptamers tethered to the hydrogel networks can be switched on and off. Therefore, the artificial ECMs can
dynamically provide cells with biophysical and biochemcial cues. In this presentation, we will discuss the synthesis of aptamer-
functionalized hydrogels, the sequential release of multiple growth factors from artificial ECMs, and the dynamic regualtion of
cell-aptamer interactions in the artifical ECMs. It is believed that this research will open a new avenue of developing adaptive
biomaterials for tissue regeneration
Yong Wang has completed his Ph.D. at the age of 29 years from Duke University and postdoctoral studies from Duke University Medical Center. He is
currently a tenured associate professor at the University of Connecticut. He has published papers extensively in high-impact journals such as Nature
Biotechnology and Biomaterials. He is currently serving as an editorial board member in three international journals.
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