Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing
Abstract Serious infection caused by drug-resistant gram-negative bacteria and their secreted toxins (e.g., lipopolysaccharide) is a serious threat to human health. Thus, treatment strategies that efficiently kill bacteria and reducing the impact of their toxins simultaneously are urgently required....
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oai:doaj.org-article:bce5f226057b4d64b99940e17db2cc092021-11-28T12:26:35ZIntegrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing10.1186/s12951-021-01130-w1477-3155https://doaj.org/article/bce5f226057b4d64b99940e17db2cc092021-11-01T00:00:00Zhttps://doi.org/10.1186/s12951-021-01130-whttps://doaj.org/toc/1477-3155Abstract Serious infection caused by drug-resistant gram-negative bacteria and their secreted toxins (e.g., lipopolysaccharide) is a serious threat to human health. Thus, treatment strategies that efficiently kill bacteria and reducing the impact of their toxins simultaneously are urgently required. Herein, a novel antibacterial platform composed of a mesoporous copper silicate microsphere (CSO) core and a platelet membrane (PM) shell was prepared (CSO@PM). CSO@PM specifically targets bacteria owing to formyl peptide receptors on the PM and, combined with photothermal therapy (PTT), exhibits highly effective bacter icidal activity. Importantly, CSO@PM can adsorb lipopolysaccharide secreted by gram-negative bacteria, resulting in inflammation reduction. Thus, CSO@PM stimulates re-epithelialization and granulation-tissue formation, promoting wound healing. Moreover, this antibacterial platform exhibits no obvious toxicity at all the test concentrations in vitro and in vivo. Thus, CSO@PM exhibits a robust antibacterial effect and a strong toxin-adsorption capacity, facilitating the clinical treatment of many bacterial infections and the development of next-generation antibacterial nanoagents. Graphical AbstractZaihui PengXiaochun ZhangLong YuanTing LiYajie ChenHao TianDandan MaJun DengXiaowei QiXuntao YinBMCarticleBacterial infectionWound healingToxin adsorptionMesoporous copper silicate microspheresPhotothermal therapyBiotechnologyTP248.13-248.65Medical technologyR855-855.5ENJournal of Nanobiotechnology, Vol 19, Iss 1, Pp 1-17 (2021) |
institution |
DOAJ |
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DOAJ |
language |
EN |
topic |
Bacterial infection Wound healing Toxin adsorption Mesoporous copper silicate microspheres Photothermal therapy Biotechnology TP248.13-248.65 Medical technology R855-855.5 |
spellingShingle |
Bacterial infection Wound healing Toxin adsorption Mesoporous copper silicate microspheres Photothermal therapy Biotechnology TP248.13-248.65 Medical technology R855-855.5 Zaihui Peng Xiaochun Zhang Long Yuan Ting Li Yajie Chen Hao Tian Dandan Ma Jun Deng Xiaowei Qi Xuntao Yin Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
description |
Abstract Serious infection caused by drug-resistant gram-negative bacteria and their secreted toxins (e.g., lipopolysaccharide) is a serious threat to human health. Thus, treatment strategies that efficiently kill bacteria and reducing the impact of their toxins simultaneously are urgently required. Herein, a novel antibacterial platform composed of a mesoporous copper silicate microsphere (CSO) core and a platelet membrane (PM) shell was prepared (CSO@PM). CSO@PM specifically targets bacteria owing to formyl peptide receptors on the PM and, combined with photothermal therapy (PTT), exhibits highly effective bacter icidal activity. Importantly, CSO@PM can adsorb lipopolysaccharide secreted by gram-negative bacteria, resulting in inflammation reduction. Thus, CSO@PM stimulates re-epithelialization and granulation-tissue formation, promoting wound healing. Moreover, this antibacterial platform exhibits no obvious toxicity at all the test concentrations in vitro and in vivo. Thus, CSO@PM exhibits a robust antibacterial effect and a strong toxin-adsorption capacity, facilitating the clinical treatment of many bacterial infections and the development of next-generation antibacterial nanoagents. Graphical Abstract |
format |
article |
author |
Zaihui Peng Xiaochun Zhang Long Yuan Ting Li Yajie Chen Hao Tian Dandan Ma Jun Deng Xiaowei Qi Xuntao Yin |
author_facet |
Zaihui Peng Xiaochun Zhang Long Yuan Ting Li Yajie Chen Hao Tian Dandan Ma Jun Deng Xiaowei Qi Xuntao Yin |
author_sort |
Zaihui Peng |
title |
Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
title_short |
Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
title_full |
Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
title_fullStr |
Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
title_full_unstemmed |
Integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
title_sort |
integrated endotoxin-adsorption and antibacterial properties of platelet-membrane-coated copper silicate hollow microspheres for wound healing |
publisher |
BMC |
publishDate |
2021 |
url |
https://doaj.org/article/bce5f226057b4d64b99940e17db2cc09 |
work_keys_str_mv |
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