Photochemical Activity of Black Phosphorus for Near-Infrared Light Controlled In Situ Biomineralization

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Jundong Shao
  • Changshun Ruan
  • Hanhan Xie
  • Paul K. Chu
  • Xue-Feng Yu

Detail(s)

Original languageEnglish
Journal / PublicationAdvanced Science
Online published27 May 2020
Publication statusOnline published - 27 May 2020

Abstract

The photochemical activity of black phosphorus (BP) in near-infrared (NIR) light controlled in situ biomineralization is investigated. Owing to the excellent NIR absorption, irradiation with NIR light not only promotes degradation of BP into PO43−, but also enhances the chemical activity to accelerate the reaction between PO43− and Ca2+ and promote in situ biomineralization. Mineralization of hydrogels is demonstrated by the preparation of BP incorporated hydrogel (BP@Hydrogel) which delivers greatly improved biomineralization performance under NIR illumination. The biomineralization process which can be controlled by modulating the light irradiation time and location has a high potential in controlling the mechanical properties and osteoinductive ability in tissue engineering. This study also provides insights into the degradation, photochemical activity, and new biological/biomedical applications of BP.

Research Area(s)

  • 2D materials, biodegradability, biomineralization, black phosphorus, near-infrared light