Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (1): 20240249.doi: 10.7503/cjcu20240249

• Article • Previous Articles     Next Articles

Preparation of Hollow Mesoporous Silica Nanoparticles Carrying Zinc/PTL and Their Application in Dentinal Tubule Occlusion

YANG Qingyi1,2, ZHAO Yuping1,2, ZHENG Wenqian2, WANG Duan1,2, SUN Hongchen2, ZHOU Ding2(), XU Xiaowei1,2()   

  1. 1.Department of Periodontology
    2.Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling,School and Hospital of Stomatology,Jilin University,Changchun 130021,China
  • Received:2024-05-22 Online:2025-01-10 Published:2024-07-15
  • Contact: ZHOU Ding, XU Xiaowei E-mail:zhouding@jlu.edu.cn;xiaoweixu@jlu.edu.cn
  • Supported by:
    the National Key Research and Development Program for Young Scientists, China(2022YFA1105800);the National Natural Science Foundation of China(62075215)

Abstract:

This study developed a novel dentinal tubule sealant material that combines the antibacterial properties of zinc, the surface adhesivity of phase-transitioned lysozyme(PTL), and the drug-loading capabilities of hollow mesoporous silica(HMSN). Initially, HMSN were synthesized using the hard templating method and selective etching, with tetraethyl orthosilicate as the silica source. The negatively charged surfaces of HMSN adsorbed Zn2+ ions through electrostatic attraction, forming Zn2+@HMSN. Subsequently, Zn2+@HMSN was encapsulated with PTL, resulting in Zn2+/PTL@HMSN composite material which exhibited antibacterial activity and enhanced adhesion. Zn2+/PTL@HMSN not only exhibited outstanding biocompatibility which could seal dentinal tubules effectively, but also demonstrated robust resistance to acid and wear. Zn2+/PTL@HMSN significantly inhibited the adhesion of streptococcus mutans, underscoring its great potential for treating dentinal hypersensitivity.

Key words: Hollow mesoporous silica, Phase-transitioned lysozyme, Dentinal hypersensitivity, Dentinal tubule, Antibacterial property

CLC Number: 

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