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| 1 | Spatial variation in community structure of a subtropical evergreen broad-leaved forest:Implications for sampling design显示文摘With the full survey data for a 24-ha subtropical evergreen broad-leaved forest dynamics plot,we evaluated spatial variation in forest structure characteristics(basal area and aboveground biomass),and calculated the minimal sample size and total sampling area necessary to estimate the forest structure characteristics within 20%(±10%) of the observed values with 95% probability for particular quadrat sizes by using a computer program that is designed to simulate the sampling process by allowing different sized quadrats to be randomly located within the sampling region.We found that(1) based on the 600 20 m×20 m subplots,basal area and aboveground biomass displayed a high degree of variation,with respective coefficients of variation of 27% and 31%;(2) based on the computer simulation analysis,the variability of basal area and aboveground biomass decreased with increasing quadrat size.The number of quadrats required to achieve the specified degree of precision dropped sharply with the increase of quadrat size.However,the total sampling area increased with increasing quadrat size,suggesting that using several small quadrats across the sampling area is more efficient than using fewer larger quadrats.Results of this study are valuable for evaluating the reliability of previous research and may assist researchers in designing effective sampling strategies for future field surveys,particularly in subtropical evergreen broad-leaved forests in China. | LIN DunMei LAI JiangShan MI XiangCheng REN HaiBao MA KePing | 2013 | Chinese Science Bulletin2013，58，10： | 2 |
| 2 | Sulfur-deficient Co9S8/Ni3S2 nanoflakes anchored on N-doped graphene nanotubes as high-performance electrode materials for asymmetric supercapacitors显示文摘In this paper,Co9S8/Ni3S2 nanoflakes(NFs)with sulfur deficiencies were grown in-situ on N-doped graphene nanotubes(NGNTs).They were successfully prepared through electrodeposition followed by hydrogenation treatment,which is able to act as a self-supported electrode for asymmetric supercapacitors(ASCs).Combining the defect-rich active materials with highly conductive skeletons,the hybrid electrode N-GNTs@sd-Co9S8/Ni3S2NFs show ultrahigh specific capacity of^304 mA hg^-1 and prominent rate capability(capacity retention ratio of^85%even at 100 Ag^-1),and deliver a long cycling lifespan of^1.9%capacitance loss after 10000 cycles.In addition,an ASC was constructed using the as-synthesized composite electrode as the positive electrode and active carbon(AC)as the negative electrode.The fabricated device shows a high energy density of^45.1 Wh kg^-1 at^3.4 kW kg^-1 and superior cycling stability.This work substantiates a smart strategy to fabricate novel composite electrode materials for next-generation supercapacitors by incorporating riched deficiencies into nanostructures. | ZHAO Jian SONG GuanYing YUAN XiangCheng SHEN Tong JIANG QingYan MENG ALan LIN YuSheng LI ZhenJiang LI QingDang | 2020 | Science China(Technological Sciences)2020，63，4： | 2 |
| 3 | Proper animal experimental designs for preclinical research of biomaterials for intervertebral disc regeneration显示文摘Low back pain is a vital musculoskeletal disease that impairs life quality,leads to disability and imposes heavy economic burden on the society,while it is greatly attributed to intervertebral disc degeneration(IDD).However,the existing treatments,such as medicines,chiropractic adjustments and surgery,cannot achieve ideal disc regeneration.Therefore,advanced bioactive therapies are implemented,including stem cells delivery,bioreagents administration,and implantation of biomaterials etc.Among these researches,few reported unsatisfying regenerative outcomes.However,these advanced therapies have barely achieved successful clinical translation.The main reason for the inconsistency between satisfying preclinical results and poor clinical translation may largely rely on the animal models that cannot actually simulate the human disc degeneration.The inappropriate animal model also leads to difficulties in comparing the efficacies among biomaterials in different reaches.Therefore,animal models that better simulate the clinical charateristics of human IDD should be acknowledged.In addition,in vivo regenerative outcomes should be carefully evaluated to obtain robust results.Nevertheless,many researches neglect certain critical characteristics,such as adhesive properties for biomaterials blocking annulus fibrosus defects and hyperalgesia that is closely related to the clinical manifestations,e.g,low back pain.Herein,in this review,we summarized the animal models established for IDD,and highlighted the proper models and parameters that may result in acknowledged IDD models.Then,we discussed the existing biomaterials for disc regeneration and the characteristics that should be considered for regenerating different parts of discs.Finally,well-established assays and parameters for in vivo disc regeneration are explored. | Yizhong Peng Xiangcheng Qing Hongyang Shu Shuo Tian Wenbo Yang Songfeng Chen Hui Lin Xiao Lv Lei Zhao Xi Chen Feifei Pu Donghua Huang Xu Cao Zengwu Shao | 2021 | Biomaterials Translational2021，2，2： | 2 |
| 4 | Biomass Homogeneity Reinforced Carbon Aerogels Derived Functional Phase-Change Materials for Solar–Thermal Energy Conversion and Storage显示文摘We deviseda functional form stable compositephase-change materials(PCMs)toachieve a three-dimensional(3D)interconnectedporous carbon aerogel structure for encapsulating polyethyleneglycol(PEG).Anovelhomogeneity reinforced carbonaerogel witha well-interconnected porous structure was constructed bycombining a flexible carbonresource from biomass guar gum with hard-brittle carbonfrom polyimide,to overcome severeshrinkage andpoor mechanical performance of traditionalcarbon aerogel.Thesupportingcarbon aerogel-encapsulated PEG produced thenovel composite PCMswithgood structure stability andcomprehensive energy storage performance.Theresults showed thatthecomposite PCMsdisplayed awell-defined 3Dinterconnected structure,and theirenergy storage capacities were 171.5 and169.5 J/g,which changed onlyslightlyafter 100 thermalcycles,andthe compositescould maintainthe equilibrium temperature at50.0−58.1℃ for about 760.3 s.The thermal conductivityofthe compositescould reach0.62 W m^(−1) K^(−1),which effectively enhanced the thermalresponse rate.And thecomposite PCMs exhibited good leakage-proof performance andexcellent light–thermal conversion.The compressive strengthof thecomposite PCMscan improveupto 1.602 MPa.Results indicatethatthisstrategy canbe efficiently usedtodevelop novel composite PCMswithimproved comprehensive thermalperformance and high light–thermal conversion. | Qingfeng Zhang Tingfeng Xia Qihan Zhang Yucao Zhu Huanzhi Zhang Fen Xu Lixian Sun Xiaodong Wang Yongpeng Xia Xiangcheng Lin Hongliang Peng Pengru Huang Yongjin Zou Hailiang Chu Bin Li | 2023 | Energy & Environmental Materials2023，6，1： | 1 |
| 5 | Decellularized Disc Hydrogels for hBMSCs tissue-specific differentiation and tissue regeneration显示文摘Tissue specificity,a key factor in the decellularized tissue matrix(DTM),has shown bioactive functionalities in tuning cell fate-e.g.,the differentiation of mesenchymal stem cells.Notably,cell fate is also determined by the living microenvironment,including material composition and spatial characteristics.Herein,two neighboring tissues within intervertebral discs,the nucleus pulposus(NP)and annulus fibrosus(AF),were carefully processed into DTM hydrogels(abbreviated DNP-G and DAF-G,respectively)to determine the tissue-specific effects on stem cell fate,such as specific components and different culturing methods,as well as in vivo regeneration.Distinct differences in their protein compositions were identified by proteomic analysis.Interestingly,the fate of human bone marrow mesenchymal stem cells(hBMSCs)also responds to both culturing methods and composition.Generally,hBMSCs cultured with DNP-G(3D)differentiated into NP-like cells,while hBMSCs cultured with DAF-G(2D)underwent AF-like differentiation,indicating a close correlation with the native microenvironments of NP and AF cells,respectively.Furthermore,we found that the integrin-mediated RhoA/LATS/YAP1 signaling pathway was activated in DAF-G(2D)-induced AF-specific differentiation.Additionally,the activation of YAP1 determined the tendency of NP-or AF-specific differentiation and played opposite regulatory effects.Finally,DNP-G and DAF-G specifically promoted tissue regeneration in NP degeneration and AF defect rat models,respectively.In conclusion,DNP-G and DAF-G can specifically determine the fate of stem cells through the integrin-mediated RhoA/LATS/YAP1 signaling pathway,and this tissue specificity is both compositional and spatial,supporting the utilization of tissue-specific DTM in advanced treatments of intervertebral disc degeneration. | Yizhong Peng Xiangcheng Qing Hui Lin Donghua Huang Jinye Li Shuo Tian Sheng Liu Xiao Lv Kaige Ma Rui Li Zilong Rao Ying Bai Songfeng Chen Ming Lei Daping Quan Zengwu Shao | 2021 | Bioactive Materials2021，6，10： | 1 |
| 6 | Endogenous repair theory enriches construction strategies for orthopaedic biomaterials:a narrative review显示文摘The development of tissue engineering has led to new strategies for mitigating clinical problems;however,the design of the tissue engineering materials remains a challenge.The limited sources and inadequate function,potential risk of microbial or pathogen contamination,and high cost of cell expansion impair the efficacy and limit the application of exogenous cells in tissue engineering.However,endogenous cells in native tissues have been reported to be capable of spontaneous repair of the damaged tissue.These cells exhibit remarkable plasticity,and thus can differentiate or be reprogrammed to alter their phenotype and function after stimulation.After a comprehensive review,we found that the plasticity of these cells plays a major role in establishing the cell source in the mechanism involved in tissue regeneration.Tissue engineering materials that focus on assisting and promoting the natural self-repair function of endogenous cells may break through the limitations of exogenous seed cells and further expand the applications of tissue engineering materials in tissue repair.This review discusses the effects of endogenous cells,especially stem cells,on injured tissue repairing,and highlights the potential utilisation of endogenous repair in orthopaedic biomaterial constructions for bone,cartilage,and intervertebral disc regeneration. | Yizhong Peng Jinye Li Hui Lin Shuo Tian Sheng Liu Feifei Pu Lei Zhao Kaige Ma Xiangcheng Qing Zengwu Shao | 2021 | Biomaterials Translational2021，2，4： | 1 |
| 7 | Clinico-biological characteristics and treatment of hepatitis B virus-related mixed cryoglobulinemia显示文摘To the Editor:Cryoglobulinemia is a disease characterized by cryoglobulins in serum that precipitate under in vitro conditions<37°C and redissolve on rewarming.It is divided into three types:Type I,where the cryoglobulin is composed of monoclonal IgG or IgM,and rarely IgA or free immunoglobulin(Ig)light chains;Type II,where the cryoglobulin is made of monoclonal IgM with rheumatoid factor(RF)activity and polyclonal IgG;and Type III,where the cryoglobulin is composed of polyclonal IgM with RF activity and polyclonal IgG.[1]Types II and III are mixed cryoglobulinemia(MC).MC could be related to several infectious diseases,like hepatitis C and B.It mainly presents as cryoglobulinemic vasculitis,[2]including fatigue,purpura,arthralgia,myalgia,peripheral neuropathy,and even severe organ damage,like glomerulonephritis.However,cryoglobulinemic vasculitis involving the gastrointestinal tract and heart is rare.Besides,neurological,ocular,and rhino-otological symptoms of hyperviscosity syndrome are also hardly seen in MC.Here,we report one hepatitis B virus(HBV)-related MC case and analyze 41 cases in literature.We have analyzed these 42 HBV-related MC cases to clarify their clinico-biological characteristics and treatment. | Xiufen Wang Xiangcheng Xiao Huipeng Ge Tianci Deng Qiaoling Zhou Jianping Ning Xiaoying Wu Hongling Yin Wei Lin Wenbin Tang | 2022 | Chinese Medical Journal2022，，3： | 0 |
| 8 | Corrigendum to‘Decellularized disc hydrogels for hBMSC tissue-specific differentiation and tissue regeneration’[Bioactive Materials 6(2021)3541-3556]显示文摘The authors regret missing out the below change in the acknowledgment section of the article.The original sentence reads as'This work was supported by the Major Research Plan of National Natural Science Foundation of China[No.91649204],the National Key Research and Development Program of China[2016YFC1100100],…'and the same has been corrected to'This work was supported by the National Key Research and Development Program of China[2016YFC1100100],the Major Research Plan of National Natural Science Foundation of China[No.91649204],…'and the same has been corrected to'This work was supported by the National Key Research and Development Program of China[2016YFC1100100],the Major Research Plan of National Natural Science Foundation of China[No.91649204],…'. | Yizhong Peng Xiangcheng Qing Hui Lin Donghua Huang Jinye Li Shuo Tian Sheng Liu Xiao Lv Kaige Ma Rui Li Zilong Rao Ying Bai Songfeng Chen Ming Lei Daping Quan Zengwu Shao | 2022 | Bioactive Materials2022，7，2： | 0 |
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