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您的检索式：作者名="Panjun Wang"
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| 1 | Photothermal and pH dual-responsive self-healing coating for smart corrosion protection显示文摘A novel self-healing coating with photothermal and pH dual-responsive properties has been designed to protect carbon steel against corrosion by loading the stimuli-responsive microcapsules into a shape memory epoxy coating. The sandwich-like microcapsules were based on reduced graphene oxide/mesoporous silica(r GO@MS) assembled with a p H-responsive poly(N,N-dimethylaminoethyl methacrylate)(PDMAEMA) layer, and were loaded with benzotriazole(BTA) inhibitors(abbreviated as rGO@MS-P-BTA). Under near-infrared(NIR) light irradiation, the prominent photothermal effect of rGO could not only elevate the coating temperature to activate the shape memory effect and close the coating scratch, but also facilitate the release of corrosion inhibitors to suppress the corrosion activity. Moreover,the PDMAEMA as a p H-driven “gatekeeper” realized the controlled release of BTA from microcapsules at acid conditions. The surface morphology analysis, electrochemical impedance spectroscopy(EIS), and scanning electrochemical microscopy(SECM) were performed to evaluate the self-healing performance of the composite coatings. The results showed that the combination of NIR light and p H-responsive selfhealing effects endowed the coating with short healing time and prominent healing efficiency. | Yao Huang Panjun Wang Weimin Tan Wenkui Hao Lingwei Ma Jinke Wang Tong Liu Fan Zhang Chenhao Ren Wei Liu Dawei Zhang | 2022 | Journal of Materials Science & Technology2022，，12： | 2 |
| 2 | Local low-dose X-ray radiation promotes homing of mesenchymal stem cells to the injured mouse spinal cord显示文摘BACKGROUND: Bone marrow-derived mesenchymal stem cells (BMSCs) are a potentially useful source for cell replacement therapy following spinal cord injury.However,the homing characteristics of BMSCs in vivo remain unclear.Low-dose radiation has been shown to promote homing of BMSCs to exposed sites.OBJECTIVE: To investigate the effects of low-dose local radiation to non-injured areas on the ability of human BMSCs to home to the injured mouse spinal cord,as well as recovery of spinal cord injury.DESIGN,TIME AND SETTING: A randomized,controlled,animal experiment was performed at the Central Laboratory,Second Affiliated Hospital of Soochow University between October 2007 and October 2008.MATERIALS: BMSCs were isolated from four adult,human donors.METHODS: Fifty adult,female,Balb/c mice were subjected to adjusted weight-drop impact resulting in complete paraplegia.Three days later,mice were randomly assigned to a radiation + transplantation group (n = 23) and a transplantation group (n = 20).In total,2 × 106 carboxyfluorescein diacetate succinimidyl ester-labeled BMSCs were injected into each mouse via the caudal vein.Mice in the radiation + transplantation group received 2.5 Gy local X-ray irradiation 2 hours before BMSCs injection.MAIN OUTCOME MEASURES: The homing of BMSCs to injured cord and irradiated skin after transplantation was observed by fluorescence microscope;the structure recovery of injured cord was assessed by magnetic resonance imaging.RESULTS: Compared with the transplantation group,at 24 hours after transplantation,the number of BMSCs was significantly increased in the injured area and the exposed site (P < 0.05),and inflammation and edema were significantly alleviated in the injured cord in the radiation + transplantation group.CONCLUSION: Local low-dose radiation has the potential to promote homing of BMSCs and recovery of spinal cord injury,although the radiated region was not injured area. | Panjun Wang Xiaohui Zhang Leixi Xue Yu Sun Songguang Ju Liesong Chen Jiasheng Hu Hong Zhang Xueguang Zhang Jinxiang Fu | 2010 | Neural Regeneration Research2010，5，5： | 0 |
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