Journal of Innovative Optical Health Sciences, Volume. 18, Issue 4, 2442001(2025)

Electrospun photothermal tellurium nanosheet-loaded polycaprolactone/gelatin nanofibers to promote wound healing

Fangjia Li1,2、*, Jing Zhang1,2, Huan Xiong1, Lihua Min1,2, and Li Gou1,2
Author Affiliations
  • 1Department of Neurosurgery, Sichuan Provincial, People’s Hospital, University of Electronic Science and Technology of China, Chengdu 610072, P. R. China
  • 2School of Medicine, University of Electronic Science and Technology, Chengdu 611731, P. R. China
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    Low-cost and biodegradable photothermal wound dressings with remarkable therapeutic effects are highly desirable for next-generation wound healing. Herein, we report an efficient photothermal wound dressing mat made of tellurium nanosheet (TeNS)-loaded electrospun polycaprolactone/gelatin (PCL/GEL) nanofibers. The TeNS-loaded PCL/GEL nanofibrous architectures showed antibacterial efficacy against Escherichia coli and Staphylococcus aureus of 87.68% and 94.57%, respectively. Under near-infrared (NIR) light illumination, they can facilitate cell proliferation as revealed by in vitro scratch assay. The results from in vivo skin wounds combined with tissue staining experiments further showed that the TeNS-loaded dressing could substantially promote wound healing under photothermal conditions. Using immunohistochemical analysis, we found that the TeNS-loaded PCL/GEL nanofibers + NIR group have a high expression of specific antigens in epidermal growth factor (EGF) (P<0.01) and endothelial cell adhesion molecule-31 (CD31, P<0.05), verifying that the nanofibrous mat can stimulate EGF generation and microvessel proliferation. Furthermore, the PCL/GEL/Te+NIR group has the lowest expression in endothelial cell adhesion molecule-68 (CD68, P<0.01), suggesting that the nanofibrous mats have a high anti-inflammatory efficiency. Our work sheds light on the development of novel nonanti-inflammatory wound dressings via photothermal sterilization and the promotion of cell growth using two-dimensional (2D) nanosheets.

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    Fangjia Li, Jing Zhang, Huan Xiong, Lihua Min, Li Gou. Electrospun photothermal tellurium nanosheet-loaded polycaprolactone/gelatin nanofibers to promote wound healing[J]. Journal of Innovative Optical Health Sciences, 2025, 18(4): 2442001

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    Paper Information

    Category: Research Articles

    Received: Dec. 17, 2023

    Accepted: Mar. 26, 2024

    Published Online: Jun. 18, 2025

    The Author Email: Fangjia Li (lifangjia@med.uestc.edu.cn)

    DOI:10.1142/S179354582442001X

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