Conductive Hydrogel Inspires Neutrophil Extracellular Traps to Combat Bacterial Infections in Wounds.

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Tác giả: Xi He, Weixian Hu, Jiewen Liao, Yuheng Liao, Ze Lin, Guohui Liu, Mengfei Liu, Bobin Mi, Lizhi OuYang, Jiaqi Sun, Yun Sun, Ranyang Tao, Xudong Xie, Ruiyin Zeng

Ngôn ngữ: eng

Ký hiệu phân loại: 617.14 Penetrating wounds

Thông tin xuất bản: United States : ACS nano , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 692499

Thetreatment of infected wounds is currently a major challenge in clinical medicine, and enhancing antimicrobial and angiogenic capacity is one of the most common strategies. However, the current treatment makes it difficult to balance the antimicrobial effect in the early stage and the angiogenic effect in the later stages of wound healing, leading to an increased rate of poor prognosis. Here, we present a nanoconductive hydrogel EF@S-HGM, consisting of HGM with ECGS, FMLP, and SWCNT. The host-guest supramolecular macromolecule (HGM) hydrogel is biocompatible and can be injected in situ in the wound. The endothelial cell growth factor (ECGS) accelerates vascular remodeling and repairs wounds by promoting the proliferation of endothelial cells. N-Formyl-Met-Leu-Phe (FMLP) recruits neutrophils and increases the antimicrobial capacity. Single-walled carbon nanotubes (SWCNT) make the hydrogel conductive, enabling the hydrogel to utilize the endogenous electric field in the wound to recruit multiple kinds of cells. In addition, we found that the EF@S-HGM hydrogel activates the glucocorticoid receptor senescence pathway and promotes the formation of NET, which enhances the antimicrobial effect. As tissue-engineered skin, the conductive hydrogel EF@S-HGM is a promising material for regenerative medicine that may provide a potential option for the treatment and care of infected wounds and significantly improve patient outcomes and prognosis.
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