Reduced Graphene Oxides Modified Bi_2Te_3 Nanosheets for Rapid Photo-Thermoelectric Catalytic Therapy of Bacteria-Infected Wounds

Siyu Wang; Yuqian Qiao; Xiangmei LiuShengli ZhuYufeng ZhengHui JiangYu ZhangJie ShenZhaoyang LiYanqin LiangZhenduo CuiPaul K. ChuShuilin Wu

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Reduced Graphene Oxides Modified Bi_2Te_3 Nanosheets for Rapid Photo-Thermoelectric Catalytic Therapy of Bacteria-Infected Wounds

机译：Reduced Graphene Oxides Modified Bi_2Te_3 Nanosheets for Rapid Photo-Thermoelectric Catalytic Therapy of Bacteria-Infected Wounds

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Temperature variation-induced thermoelectric catalytic efficiency of thermoelectricmaterial is simultaneously restricted by its electrical conductivity,Seebeck coefficient, and thermal conductivity. Herein, Bi_2Te_3 nanosheetsare in situ grown on reduced graphene oxides (rGO) to generate an efficientphoto-thermoelectric catalyst (rGO-Bi_2Te_3). This system exhibits phonon scatteringeffect and extra carrier transport channels induced by the formed heterointerfacebetween rGO and Bi_2Te_3, which improves the power factor valueand reduces thermal conductivity, thus enhancing the thermoelectric performanceof 2.13 times than single Bi_2Te_3. The photo-thermoelectric catalysis ofrGO-Bi_2Te_3 significantly improves the reactive oxygen species yields, resultingfrom the effective electron–hole separation caused by the unique thermoelectricfield and heterointerfaces of rGO-Bi_2Te_3. Correspondingly, the electrospinningmembranes containing rGO-Bi_2Te_3 nanosheets exhibit high antibacterialefficiency in vivo (99.35 ± 0.29%), accelerated tissue repair ability, and excellentbiosafety. This study provides an insight into heterointerface design inphoto-thermoelectric catalysis.

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来源
《Advanced functional materials》 |2023年第3期|2210098.1-2210098.17|共17页
作者
Siyu Wang; Yuqian Qiao; Xiangmei LiuShengli ZhuYufeng ZhengHui JiangYu ZhangJie ShenZhaoyang LiYanqin LiangZhenduo CuiPaul K. ChuShuilin Wu;
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School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technologyby the Ministry of Education of ChinaTianjin UniversityTianjin 300072, China;

School of Materials Science & EngineeringPeking UniversityBeijing 100871, China;

School of Health Science and Biomedical EngineeringHebei University of TechnologyXiping Avenue 5340, Beichen District, Tianjin 300401, ChinaDepartment of OrthopedicsGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510080, ChinaShenzhen Key Laboratory of Spine SurgeryDepartment of Spine SurgeryPeking University Shenzhen HospitalShenzhen 518035, ChinaDepartment of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongKowloon, Hong Kong 999077, ChinaSchool of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technologyby the Ministry of Education of ChinaTianjin UniversityTianjin 300072, China, School of Materials Science & EngineeringPeking UniversityBeijing 100871;

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antibacterial; Bi_2Te_3; catalyses; photo-thermoelectric; wound healing;

Reduced Graphene Oxides Modified Bi_2Te_3 Nanosheets for Rapid Photo-Thermoelectric Catalytic Therapy of Bacteria-Infected Wounds

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