A Bioinspired, Sustained-Release Material in Response to Internal Signals for Biphasic Chemical Sensing in Wound Therapy

Wing Fu Lai, Ryan Deng, Tingchao He, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


Biofluorescence in living entities is a functional process associated with information conveyance; whereas the capacity to respond to internal physiological signals is a unique property of a cell. By integrating these two biological features into materials design, a bioinspired material, namely CPS, is developed. Contrary to conventional luminescent polymeric systems whose emission comes from π-conjugated structures, this material displays clusterization-triggered emission. In the preclinical trial on a dermal punch model of tissue repair, it successfully increases the rate of wound closure, reduces inflammatory cell infiltration, and enhances collagen deposition. It can also relay changes in internal chemical signals into changes in its intrinsic luminescence for biphasic chemical sensing to prevent possible occurrence of skin hyperpigmentation caused by minocycline hydrochloride in wound therapy. Together with its ease of fabrication, high biocompatibility, high drug loading efficiency, and high release sustainability, CPS shows high potential to be developed into an intelligent solid-state device for wound treatment in the future.

Original languageEnglish
Article number2001267
JournalAdvanced healthcare materials
Issue number2
Publication statusPublished - 20 Jan 2021


  • bioinspired materials
  • clusterization
  • luminescence
  • sustained release
  • wound closure

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Pharmaceutical Science

Cite this