Hong Wu

Central South University

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i-10 index

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Yong Liu

Central South University

Ian Baker

Dartmouth College

Luxin Liang

Central South University

Qianli Huang

Xi'an University of Architecture and Technology

Yaojia Ren

Central South University

Quan Shan

Kunming University of Science and Technology

Yingtao Tian

State Nuclear Power Technology Company (China)

Qihong Fang

Hunan University

Qingge Wang

Shanghai Maritime University

Kaiyang Li

North China Electric Power University

Cooperative Institutions

Central South University

291

Chinese Academy of Sciences

149

Tsinghua University

Shanghai Jiao Tong University

University of Science and Technology of China

Huazhong University of Science and Technology

Sichuan University

Zhejiang University

University of Chinese Academy of Sciences

Hunan University

Author Statistics

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Preparing Sr-containing nano-structures on micro-structured titanium alloy surface fabricated by additively manufacturing to enhance the anti-inflammation and osteogenesis

Colloids and Surfaces B Biointerfaces (2022)

Siwei Li Wentao Liu Luxin Liang Tang Liu Yingtao Tian

Titanium alloy

Surface Modification

10.1016/j.colsurfb.2022.112762

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Citations (7)

ZigBee wireless sensor network for environmental monitoring system

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2009)

Shun-qi Chai Lei Ji Hong Wu

ZigBee is a new close-up, low-complexity, low-power, low data rate, low-cost wireless networking technology, mainly used for short distance wireless transmission. It is based on IEEE802.15.4 standards, thousands of tiny sensors form a network through mutual coordination to communications. This paper introduces the ZigBee wireless sensor networks in environmental monitoring applications. The hardware design, including microprocessor, data acquisition, antenna and peripheral circuits of the chips, and through software design composed ZigBee mesh network that can make data acquisition and communication. This network has low power consumption, low cost, the effective area is big, and information transfers reliable merits. And have confirmed the network's communication applicability by the Serial Com Assistant, also testified the network have very good pragmatism by the NS2 emulation the network's operation.

NeuRFon

Wireless WAN

Microprocessor

10.1117/12.839813

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Citations (3)

A ZigBee wireless network factory monitoring system design

CRC Press eBooks (2015)

Wen Huang Fang Wu Zhifeng Xiao Hong Wu

Factory (object-oriented programming)

NeuRFon

10.1201/b18331-35

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Citations (0)

Targeting ABCB6 with nitidine chloride inhibits PI3K/AKT signaling pathway to promote ferroptosis in multiple myeloma

Free Radical Biology and Medicine (2023)

Zhao Yin Yiwen Lv Deng Li Guangchao Li Ruiming Ou

10.1016/j.freeradbiomed.2023.04.003

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Citations (23)

Evaluating the osteoimmunomodulatory properties of micro-arc oxidized titanium surface at two different biological stages using an optimized in vitro cell culture strategy

Materials Science and Engineering C (2020)

Xuezhong Li Qianli Huang Xiaobo Hu Dengke Wu Nianfeng Li

Biomaterial

Surface Modification

Proinflammatory cytokine

10.1016/j.msec.2020.110722

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Citations (15)

Investigation of retained austenite morphology-dominated hardening and fatigue behavior in bainitic steel during wear process

Authorea (Authorea) (2023)

Quan Shan Sida Chen Xiedong Huang Zexin Liao Zulai Li

This study aims to revealing the relationship between retained austenite (RA) morphology, deformation-induced transformation (DIPT) behavior and surface wear behavior. The hardening and fatigue behavior during wear of continuous film-like RA (CFRA), blocky RA (BRA), discontinuous film-like RA (DFRA) and point or flocculent RA (PRA) achieved through different tempering process was investigated using quasi-in-situ fatigue test and impact abrasive wear test. RA morphology exhibited a significant influence on hardening and fatigue behavior during wear. CFRA exhibited the best wear properties, owing to its excellent fatigue performance and hardening capacity. The BRA displayed relative high wear performance, with adequate hardening capacity but weak fatigue performance. DFRA demonstrated comparable wear resistance to BRA due to better fatigue performance. PRA exhibited deficient wear performance due to insufficient fatigue properties and low work hardening ability.

Tempering

Hardening (computing)

Work hardening

Fatigue limit

10.22541/au.168433216.66497452/v1

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Citations (0)

Site‐Resolved Cu₂O Catalysis in the Oxidation of CO

Angewandte Chemie International Edition (2019)

Zhenhua Zhang Hong Wu Zongyou Yu Rui Song Kun Qian

Abstract The identification of the contribution of different surface sites to the catalytic activity of a catalyst nanoparticle is one of the most challenging issues in the fundamental studies of heterogeneous catalysis. We herein demonstrate an effective strategy of using a series of uniform cubic Cu 2 O nanocrystals with different sizes to identify the intrinsic activity and contributions of face and edge sites in the catalysis of CO oxidation by a combination of reaction kinetics analysis and DFT calculations. Cu 2 O nanocrystals undergo in situ surface oxidation forming CuO thin films during CO oxidation. As the average size of the cubic Cu 2 O nanocrystals decreases from 1029 nm to 34 nm, the dominant active sites contributing to the catalytic activity switch from face sites to edge sites. These results reveal the interplay between the intrinsic catalytic activity and the density of individual types of surface sites on a catalyst nanoparticle in determining their contributions to the catalytic activity.

10.1002/anie.201814258

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Citations (93)

Enhanced Wear Resistance, Antibacterial Performance and Biocompatibility by Nanotubes Containing Nano-Ag and Silicate/Phosphate on the Surface of βTi Alloy for Bone Application

Hong Wu Qingge Wang Jia Liu Jingbo Liu Yaojia Ren

An ideal Ti-based implant should avoid stress shielding surrounding the implants, besides a requirement of bioactivity. To achieve the requirements, Ti-35Nb-2Ta-3Zr (wt.%) alloy with a low elastic modulus was used as the substrate for the coatings to avoid stress shielding. The study constructed the micro/nano functional coatings containing bioceramics and Ag ion onto TiO2 nanotubes by anodization, deposition and spin-coating methods. The tribocorrosion behavior, corrosion behavior, antibacterial activity and early osteogenic behavior of bioceramics (nano β-TCP, micro-HA and meso-CaSiO3) and Ag nanoparticles coated on TiO2 nanotubes in vitro were studied. Tribocorrosion and corrosion results exhibit the wear rate and corrosive rate was highly dependent on surface feature. The micro-structure could reduce wear tracks due to adhesive wear and abrasive wear. Compared with other scale structures, the nano-structured passive film showed higher density to prevent solution from corroding substrate. The meso-CaSiO3 was favorable to the cell adhesion, proliferation and early differentiation. It is demonstrated that Si and P enhanced osteogenic response due to the micro/nano structure and ion releasing. Besides, the micro/nano coatings containing Ag ion exhibit great antibacterial capacity against E. coli. The findings indicated that hybrid coating can be a potential coating to accelerate osteogenesis process for orthopedic implants in clinic.

Biocompatibility

Surface Modification

10.2139/ssrn.4375504

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Enhancing the immunomodulatory osteogenic properties of Ti-Mg alloy by Mg2+-containing nanostructures

Regenerative Biomaterials (2024)

Luxin Liang Zhengjun Lin Ziqing Duan Solomon-Oshioke Agbedor Ning Li

Abstract Facilitating an appropriate immune response is crucial for promoting bone tissue regeneration upon biomaterial implantation. In this study, the Mg2+-containing nanostructures on the surface of Ti-1.25Mg alloy were prepared by a one-step hydrothermal reaction method via regulating pH value to enhance the immunomodulatory osteogenic properties of Ti-Mg alloys. In neutral (HT7) or alkaline (HT9) hydrothermal treatment (HT) solution, the size of MgTiO3 nanostructures formed on the surface of Ti-1.25Mg alloy is smaller than that in acidic HT solution (HT5), and lamellar Mg(OH)2 nanostructures are found in HT7 and HT9. In addition, the sample surface has a lower roughness and higher wettability with increasing pH value. The Mg2+-containing nanostructures on the Ti-1.25Mg alloy inhibited inflammatory response by promoting the polarization of M2 macrophages, thereby promoting osteogenesis in vitro. The micro-CT and histological assessment proved that the regeneration of bone defect was faster in HT7 than the Ti-1.25Mg in vivo. Mechanically, Mg2+-containing nanostructures can mediate the immune response of macrophages via upregulating integrins α5β1 and inhibiting Toll-like receptors (TLR-4), subsequently inhibiting the NF-κB signaling pathway. Overall, osteoimmunity-regulating Mg2+-containing nanostructures on Ti-1.25Mg present a promising biomaterial for bone repair.

10.1093/rb/rbae104

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Microstructure and Corrosion Resistance of Powder Metallurgical Ti-Nb-Zr-Mg Alloys with Low Modulus for Biomedical Application

SSRN Electronic Journal (2022)

Siwei Li Kaiyang Li Luxin Liang Kaiyang Li Yalin Lü

Due to their bioinert nature, titanium alloys show poor bone-implant integration and insufficient osseointegration in vivo. In this study, a series of low elastic modulus bioactive titanium alloys with a nominal composition of Ti-13Nb-13Zr-1.25Mg (wt.%) were prepared using mechanical alloying and spark plasma sintering techniques. The microstructures, mechanical properties, degradation behaviors and in vitro bioactivities of these alloys were systematically investigated. After sintering at 700℃, the α-Ti, β-Ti and Nb (Zr)-rich phases were present, and the Mg was uniformly distributed. In addition to above-mentioned phases, the α" phase was found after sintering at 800℃ or 900℃. The density, elastic modulus, yield strength, ultimate compressive strength and corrosion resistance all increased with increasing sintering temperature. After sintering at 900℃, the alloy exhibited high density (99.8%), good compressive strength (1417.2 MPa) and excellent corrosion resistance. In addition, it had a lower elastic modulus (~69 GPa) than that of the biomedical alloy Ti–13Nb–13Zr (~80 GPa). In vitro experiments showed that the alloys sintered at either 800℃ or 900℃ promoted cell adhesion and proliferation. However, the alloy sintered at 700℃ inhibited cell proliferation, which was due to the greater release of Mg2+ . Thus, the optimally-processed Ti-Nb-Zr-Mg alloy sintered at 900℃ shows immense potential as a biomedical material.

10.2139/ssrn.4107114

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