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| 1 | Ultrasensitive skin‐like wearable optical sensors based on glass micro/nanofibers显示文摘Electronic skin,a class of wearable electronic sensors that mimic the functionalities of human skin,has made remarkable success in applications including health monitoring,human-machine interaction and electronic-biological interfaces.While electronic skin continues to achieve higher sensitivity and faster response,its ultimate performance is fundamentally limited by the nature of low-frequency AC currents.Herein,highly sensitive skin-like wearable optical sensors are demonstrated by embedding glass micro/nanofibers(MNFs)in thin layers of polydimethylsiloxane(PDMS).Enabled by the transition from guided modes into radiation modes of the waveguiding MNFs upon external stimuli,the skin-like optical sensors show ultrahigh sensitivity(1870 k·Pa^-1),low detection limit(7 mPa)and fast response(10μs)for pressure sensing,significantly exceeding the performance metrics of state-of-the-art electronic skins.Electromagnetic interference(EMI)-free detection of high-frequency vibrations,wrist pulse and human voice are realized.Moreover,a five-sensor optical data glove and a 2×2-MNF tactile sensor are demonstrated.These initial results pave the way toward a new category of optical devices ranging from ultrasensitive wearable sensors to optical skins. | Lei Zhang Jing Pan Zhang Zhang Hao Wu Ni Yao Dawei Cai Yingxin Xu Jin Zhang Guofei Sun Liqiang Wang Weidong Geng Wenguang Jin Wei Fang Dawei Di Limin Tong | 2020 | Opto-Electronic Advances2020,3,3: | 12 |
| 2 | Corrosion Inhibition by Co-Immobilized Lysozyme and Lipase in Circulating Cooling Water System显示文摘The corrosion inhibition performance of co-immobilized lysozyme and lipase was investigated in a recirculating cooling water system. Four methods were carried out in co-immobilization, and the operating parameters were optimized by using the respond surface methodology(RSM). The corrosion inhibition performance of co-immobilized lipase and lysozyme was evaluated by weight loss measurements and electrochemical measurements. The results revealed that the optimal co-immobilization method should be the sequential immobilization of lysozyme and then lipase. The inhibition efficiency was 86.10% under the optimal co-immobilized conditions. Electrochemical data showed that co-immobilized lysozyme and lipase was a mixed-type inhibitor and the corrosion inhibition efficiency was 81%. | Liu Fang Lü Yucui Jiang Guofei Chen Xiaorui Sun Juan Zhao Chaocheng | 2017 | China Petroleum Processing & Petrochemical Technology2017,19,2: | 3 |
| 3 | Osteogenesis effects of magnetic nanoparticles modified-porous scaffolds for the reconstruction of bone defect after bone tumor resection显示文摘The treatment of bone defect after bone tumor resection is a great challenge for orthopedic surgeons.It should consider that not only to inhibit tumor growth and recurrence,but also to repair the defect and preserve the limb function.Hence,it is necessary to find an ideal functional biomaterial that can repair bone defects and inactivate tumor.Magnetic nanoparticles(MNPs)have its unique advantages to achieve targeted hyperthermia to avoid damage to surrounding normal tissues and promote osteoblastic activity and bone formation.Based on the previous stage,we successfully prepared hydroxyapatite(HAP)composite poly(lactic-co-glycolic acid)(PLGA)scaffolds and verified its good osteogenic properties,in this study,we produced an HAP composite PLGA scaffolds modified with MNPs.The composite scaffold showed appropriate porosity and mechanical characteristics,while MNPs possessed excellent magnetic and thermal properties.The cytological assay indicated that the MNPs have antitumor ability and the composite scaffold possessed good biocompatibility.In vivo bone defect repair experiment revealed that the composite scaffold had good osteogenic capacity.Hence,we could demonstrate that the composite scaffolds have a good effect in bone repair,which could provide a potential approach for repairing bone defect after bone tumor excision. | Ming Li Jianheng Liu Xiang Cui Guofei Sun Jianwei Hu Sijia Xu Fei Yang Licheng Zhang XiumeiWang Peifu Tang | 2019 | Regenerative Biomaterials2019,6,6: | 3 |
| 4 | Surveillance of pine wilt disease by high resolution satellite显示文摘Pine wilt disease caused by the pinewood nematode Bursaphelenchus xylophilus has led to the death of a large number of pine trees in China.This destructive disease has the characteristics of bring wide-spread,fast onset,and long incubation time.Most importantly,in China,the fatality rate in pines is as high as 100%.The key to reducing this mortality is how to quickly find the infected trees.We proposed a method of automatically identifying infected trees by a convolution neural network and bounding box tool.This method rapidly locates the infected area by classifying and recognizing remote sensing images obtained by high resolution earth observation Satellite.The recognition accuracy of the test data set was 99.4%,and the remote sensing image combined with convolution neural network algorithm can identify and determine the distribution of the infected trees.It can provide strong technical support for the prevention and control of pine wilt disease. | Hongwei Zhou Xinpei Yuan Huanyu Zhou Hengyu Shen Lin Ma Liping Sun Guofei Fang Hong Sun | 2022 | Journal of Forestry Research2022,33,4: | 2 |
| 5 | Combined Use of Co-immobilized Lysozyme and Lipase and Chemical Inhibitors in Circulating Cooling Water System显示文摘In order to improve the stability and corrosion inhibition performance of bioenzyme, lipase and lsozyme were co-immobilized on the mesoporous molecular sieve MCM-41 by the adsorption method. Then the immobilized enzymes were combined with amino trimethylene phosphonic acid and polyaspartic acid to prevent corrosion caused by circulating cooling water. The weight-loss method and electrochemical techniques were used to evaluate the performance of composite inhibitors. The co-immobilized lysozyme and lipase achieved good inhibition effects. After they were combined with amino trimethylene phosphonic acid and polyaspartic acid, the corrosion inhibition properties were further improved. The inhibition efficiency was promoted to 94.4%. During the corrosion inhibition process, the immobilized enzymes played an important role. The addition of corrosion inhibitor could inhibit the anodic dissolution and cathodic hydrogen evolution process of carbon steel at the same time. The adsorption of co-immobilized lysozyme and lipase composite inhibitor on the steel surface was a joint action involving physical adsorption and chemical adsorption. | Jiang Guofei Chen Xiaorui Lu Xin Liu Fang Wang Yongqiang Zhao Chaocheng Sun Juan | 2018 | China Petroleum Processing & Petrochemical Technology2018,20,4: | 1 |
| 6 | A New Resource Scheduling Strategy Based on Genetic Algorithm in Cloud Computing Environment显示文摘 | JianhuaGU JinhuaHU TianhaiZHAO Guofei SUN | 2012 | Journal of Computers2012,71,: | 1 |
| 7 | Enhanced activity of ZnS(111) by N/Cu co-doping:Accelerated degradation of organic pollutants under visible light显示文摘High-efficiency photocatalysts are of great significance for the application of photocatalytic technology in water treatment.In this study,N/Cu co-doped ZnS nanosphere photocatalys(N/Cu-ZnS) is synthesized by a hydrothermal method for the first time.After doping,the tex ture of nanosphere becomes loose,the nanometer diameter is reduced,making the specific surface area of catalyst increased from 34.73 to 101.59 m^(2)/g.The characterization results show that more ZnS (111) crystal planes are exposed by N/Cu co-doping;the calculations of density functional theory show that N/Cu co-doping can increase the catalytic activity of the ZnS (111) crystal plane,enhance the adsorption capacity of (111) crystal plane to O_(2)and promote the generation of·O_(2)-.The energy levels of the introduced impurities can be hybridized with the energy levels of S and Zn at the top of valence band and the bottom o conduction band,which makes the band gap narrower,thus enhancing the absorption o visible light.Compared with pure ZnS,the degradation rates of 2,4-dichlorophenol (2,4-DCP and tetracycline (TC) by N/Cu-ZnS under visible light (>420 nm) are increased by 83.7 and51 times,respectively.In this research,a promising photocatalyst for photocatalytic degra dation of organic pollutants in wastewater is provided. | Guofei Jiang Benjie Zhu Junzhi Sun Fang Liu Yongqiang Wang Chaocheng Zhao | 2023 | Journal of Environmental Sciences2023,,3: | 0 |
| 8 | Von Hippel-Lindau protein and respiratory diseases显示文摘Von Hippel-Lindau protein(p VHL) was first identified as a tumor suppressor gene as mutations in the VHL gene predispose individuals to systemic benign or malignant tumors and cysts in many organs, including renal cell carcinoma of the clear-cell type and hemangioblastoma. Although p VHL is best known to act as a component of ubiquitin protein ligase for the proteasomal degradation of hypoxia inducible factor(HIF)-α, p VHL also interacts with extracellular matrix proteins and cytoskeleton, regulating extracellular matrix assembly, cell signaling, and many other cellular functions. Recent studies suggest that p VHL contributes to many lung diseases, including pulmonary arterial hypertension, lung cancer, pulmonary fibrosis, and acute respiratory distress syndrome. Mutation or loss of function of p VHL activates HIF and induced expression of vascular endothelial growth factor, endothelin-1, and Fox M1, leading to pulmonary arterial hypertension. Loss of p VHL in lung cancer cells promotes epithelial-mesenchymal transition and cancer migration and invasion while decreasing lung cancer cell proliferation and colonization. In patients of idiopathic pulmonary fibrosis, elevated expression of p VHL induces expression of fibronectin/integrin α5β1/focal adhesion kinase signaling, resulting in fibroproliferation and fi-brosis. In alveolar epithelial cells, p VHL mediates Na, K-ATPase degradation in an HIF independent pathway, causing decreased edema clearance during hypoxia. These studies suggest that p VHL plays key roles in the pathogenesis of many lung diseases, and further investigations are warranted to elucidate the underlying molecular mechanisms. | Tianji Chen Miranda Sun Guofei Zhou | 2013 | World Journal of Respirology2013,3,3: | 0 |