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Ultrasound-Responsive Aligned Piezoelectric Nanofibers Derived Hydrogel Conduits for Peripheral Nerve Regeneration

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机构: [1]Southeast Univ, Zhongda Hosp, Adv Inst Life & Hlth, Jiangsu Prov HighTech Key Lab Biomed Res,Sch Life, Nanjing 210096, Peoples R China [2]Southeast Univ, Nanjing Drum Tower Hosp, Sch Biol Sci & Med Engn, Dept Rheumatol & Immunol, Nanjing 210096, Peoples R China [3]Nantong Univ, Coinnovat Ctr Neuroregenerat, Nantong 226001, Peoples R China [4]Peking Univ, Japan Friendship Sch Clin Med, Beijing 100029, Peoples R China [5]Sun Yat Sen Univ, Dept Anesthesiol, State Key Lab Oncol South China, Canc Ctr, Guangzhou 510060, Peoples R China [6]Peking Univ, Aerosp Clin Coll, Aerosp Ctr Hosp, Dept Neurol, Beijing 100049, Peoples R China [7]Sun Yat Sen Univ, Affiliated Hosp 8, Shenzhen 518033, Peoples R China [8]Aerosp Ctr Hosp, Beijing Inst Technol, Sch Life Sci, Dept Neurol, Beijing 100081, Peoples R China [9]Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Sch Med, Dept Otolaryngol Head & Neck Surg, Chengdu 610072, Peoples R China [10]Southeast Univ, Shenzhen Res Inst, Shenzhen 518063, Peoples R China
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关键词: controllable release electrospun nanofiber nerve regeneration piezoelectricity ultrasound

摘要:
Nerve guidance conduits (NGCs) are considered as promising treatment strategy and frontier trend for peripheral nerve regeneration, while their therapeutic outcomes are limited by the lack of controllable drug delivery and available physicochemical cues. Herein, novel aligned piezoelectric nanofibers derived hydrogel NGCs with ultrasound (US)-triggered electrical stimulation (ES) and controllable drug release for repairing peripheral nerve injury are proposed. The inner layer of the NGCs is the barium titanate piezoelectric nanoparticles (BTNPs)-doped polyvinylidene fluoride-trifluoroethylene [BTNPs/P(VDF-TrFE)] electrospinning nanofibers with improved piezoelectricity and aligned orientation. The outer side of the NGCs is the thermoresponsive poly(N-isopropylacrylamide) hybrid hydrogel with bioactive drug encapsulation. Such NGCs can not only induce neuronal-oriented extension and promote neurite outgrowth with US-triggered wireless ES, but also realize the controllable nerve growth factor release with the hydrogel shrinkage under US-triggered heating. Thus, the NGC can positively accelerate the functional recovery and nerve axonal regeneration of rat models with long sciatic nerve defects. It is believed that the proposed US-responsive aligned piezoelectric nanofibers derived hydrogel NGCs will find important applications in clinic neural tissue engineering. Aligned piezoelectric nanofibers derived hydrogel nerve guidance conduits for peripheral nerve regeneration are proposed. The aligned piezoelectric nanofibers inner layer possesses aligned orientation and US-triggered electrical stimulation, while poly(N-isopropylacrylamide) hybrid hydrogel outer layer provides controllable drug release to promote nerve regeneration. Such conduits can positively accelerate the functional recovery and nerve regeneration of rats with long sciatic nerve defects. image

基金:

基金编号: 2020YFB1313100 2021YFA1101300 2021YFA1101800 2020YFA0112503 BK20232007 2021B1515120054 2022B1515120026 2023A1515011986 JCYJ20190813152616459 JCYJ20210324133214038 JCYJ20190814093401920 JCYJ20210324125608022 2021YFS0371 YKY-KF202201 FTWS2022013 FTWS2023080 22002018 52073060 82330033 82030029 92149304 22302231

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出版当年[2023]版:
大类 | 1 区 材料科学
小类 | 1 区 化学:综合 1 区 物理化学 1 区 材料科学:综合 1 区 纳米科技 1 区 物理:应用 1 区 物理:凝聚态物理
最新[2023]版:
大类 | 1 区 材料科学
小类 | 1 区 化学:综合 1 区 物理化学 1 区 材料科学:综合 1 区 纳米科技 1 区 物理:应用 1 区 物理:凝聚态物理
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Q1 CHEMISTRY, MULTIDISCIPLINARY Q1 CHEMISTRY, PHYSICAL Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY Q1 PHYSICS, APPLIED Q1 PHYSICS, CONDENSED MATTER
最新[2023]版:
Q1 CHEMISTRY, MULTIDISCIPLINARY Q1 CHEMISTRY, PHYSICAL Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY Q1 PHYSICS, APPLIED Q1 PHYSICS, CONDENSED MATTER

影响因子: 最新[2023版] 最新五年平均 出版当年[2023版] 出版当年五年平均 出版前一年[2023版]

第一作者:
第一作者机构: [1]Southeast Univ, Zhongda Hosp, Adv Inst Life & Hlth, Jiangsu Prov HighTech Key Lab Biomed Res,Sch Life, Nanjing 210096, Peoples R China [2]Southeast Univ, Nanjing Drum Tower Hosp, Sch Biol Sci & Med Engn, Dept Rheumatol & Immunol, Nanjing 210096, Peoples R China [3]Nantong Univ, Coinnovat Ctr Neuroregenerat, Nantong 226001, Peoples R China
通讯作者:
通讯机构: [1]Southeast Univ, Zhongda Hosp, Adv Inst Life & Hlth, Jiangsu Prov HighTech Key Lab Biomed Res,Sch Life, Nanjing 210096, Peoples R China [2]Southeast Univ, Nanjing Drum Tower Hosp, Sch Biol Sci & Med Engn, Dept Rheumatol & Immunol, Nanjing 210096, Peoples R China [3]Nantong Univ, Coinnovat Ctr Neuroregenerat, Nantong 226001, Peoples R China [8]Aerosp Ctr Hosp, Beijing Inst Technol, Sch Life Sci, Dept Neurol, Beijing 100081, Peoples R China [9]Univ Elect Sci & Technol China, Sichuan Prov Peoples Hosp, Sch Med, Dept Otolaryngol Head & Neck Surg, Chengdu 610072, Peoples R China [10]Southeast Univ, Shenzhen Res Inst, Shenzhen 518063, Peoples R China
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