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Actively contractible and antibacterial hydrogel for accelerated wound healing

nano Research 2024年第8期17卷 7394-7403页

作者： Zhaoxin ji Ting wei jiafei Zhu jiaying Hu Zhisheng Xiao Boxiong Bai Xinying Lv Yu Miao Muchao Chen Cheng Wang Feng Pan yang yang Meng Li Qian Chen Institute of Functional nano and Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Department of Thoracic Surgery Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai 200433China Central Laboratory Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai 200433China School of Materials Science and Engineering Tongji UniversityShanghai 201804China Department of dermatology Shanghai Children’s Medical Center School of MedicineShanghai Jiao Tong UniversityShanghai 200025China

Adhesive hydrogel has drawn great attention for wide applications in wound healing owing to its excellent biocompatibility and lasting ***,traditional adhesive hydrogels only keep the wound moist to promote wound *** is still imperative to fabricate adhesive hydrogels that exhibit efficient antibacterial ability,active driving dynamic wound closure,and reactive oxygen species(ROS)scavenging together with excellent mechanical ***,a novel hydrogel based on poly(n-isopropyl acrylamide)(PnIPAAm),a thermoresponsive polymer,and tannic acid(TA)-Ag nanoparticles(TA-Ag nPs)exhibiting active contraction,tissue adhesion,anti-inflammatory and antibacterial functions was ***-Ag dispersed in the hydrogel not only functioned as the catalyst to polymerize the reaction but also provided additional anti-inflammatory and antibacterial ***,tannic acid containing catechol groups endowed the hydrogel with adhesive *** interestingly,the obtained hydrogel exhibited the thermoresponsive shrinkage ability,which could mechanically drive wound closure due to the presence of PnIPAAm *** vivo mouse full-thickness skin defect model demonstrated that this actively contractible and antibacterial hydrogel is a promising dressing to improve wound healing process by accelerating tissue regeneration and preventing bacterial ***,this multi-functional adhesive hydrogel developed here may provide a new possibility for wound healing.

关键词： anti-inflammatory antibacterial active contraction hydrogel patch wound healing

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A novel long persistent luminescent material CaGeO_(3):Tb^(3+)with photo-stimulation properties

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journal of Rare Earths 2024年第7期42卷 1233-1239,I0002页

作者： wei Meng Xiaoyan Fu Tongyan Lin Zewen Liu naihui Chen jiaxu Zhang Runyao Liu Ruj.n yang Long Chen Hongwu Zhang School of Chemistry and Material Sciences Ludong UniversityYantai264025China College of Materials Science and Engineering Xiamen University of TechnologyXiamen361024China College of Materials Xiamen UniversityXiamen361005China

A novel green long afterglow material CaGeO_(3):Tb^(3+)was synthesized by high temperature solid phase *** to the experimental results,CaGeO_(3):Tb^(3+)is a green long persistent luminescent(LPL)material with excellent ***_(3):Tb^(3+)shows LPL emission peak at 442,490.9,548.7,588.5 and 623.8 nm,corresponding to ^(5)D_(3) to^(7)F_(4)and^(5)D_(4)to^(7)F_(j)(j=6,5,4,3)transitions of Tb^(3+).Its CIE coordinates are(0.27,0.50),indicating that the afterglow emission is close to the light of green *** addition,after the excitation source is turned off,the afterglow time is longer than 90 *** an interval of 7 h,the photo-stimulation luminescence(PSL)can be observed by using 980 nm laser cyclic *** thermoluminescence(ThL)results show that there are three types of traps in the material and their depths are 0.666,0.774 and 0.892 eV respectively,which are caused by the doping of Tb^(3+).All the results show that CaGeO_(3):Tb^(3+)is an excellent long afterglow luminescent material.

关键词： Long persistent luminescence Photo-stimulation Trap CaGeO_(3):Tb^(3+) Rare earths

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Ambient-Condition Strategy for Production of Hollow Ga_(2)O_(3)@rGO Crystalline nanostructures Toward Efficient Lithium Storage

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Energy & Environmental Materials 2024年第2期7卷 75-82页

作者： Dongdong Zhang Qiliang wei Haili Huang Lan jiang jie Teng Ruizhi Yu Qing Zhang Shengxing Liu Lin Wang weiyou yang Institute of Micro/nano Materials and Devices Ningbo University of TechnologyNingbo 315211China College of Materials Science and Engineering Hunan UniversityChangsha 410082China

Crystallineγ-Ga_(2)O_(3)@rGO core-shell nanostructures are synthesized in gram scale,which are accomplished by a facile sonochemical strategy under ambient *** are composed of uniformγ-Ga_(2)O_(3)nanospheres encapsulated by reduced graphene oxide(rGO)nanolayers,and their formation is mainly attributed to the existed opposite zeta potential between the Ga_(2)O_(3)and *** as-constructed lithium-ion batteries(LIBs)based on as-fabricatedγ-Ga_(2)O_(3)@rGO nanostructures deliver an initial discharge capacity of 1000 mAh g^(-1)at 100 mA g^(-1)and reversible capacity of 600 mAh g^(-1)under 500 mA g^(-1)after 1000 cycles,respectively,which are remarkably higher than those of pristineγ-Ga_(2)O_(3)with a much reduced lifetime of 100 cycles and much lower *** situ XRD and XPS analyses demonstrate that the reversible LIBs storage is dominant by a conversion reaction and alloying mechanism,where the discharged product of liquid metal Ga exhibits self-healing ability,thus preventing the destroy of ***,the rGO shell could act robustly as conductive network of the electrode for significantly improved conductivity,endowing the efficient Li storage *** work might provide some insight on mass production of advanced electrode materials under mild condition for energy storage and conversion applications.

关键词： ambient condition core-shell nanostructures Ga_(2)O_(3) Li-ion batteries rGO

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Tuning interfacial charge transfer for efficient visible-light-driven photodegradation and simultaneous H_(2)evolution

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journal of Materials Science & Technology 2024年第1期168卷 35-49页

作者： Zhiyang Li Yaogang Chen Yinghe Zhang wei Ai Qian Lei Tingj.n Yao Dan Zhong Wenjie Liu Wenbiao j.n Lei yang State Key Laboratory of Urban Water Resource and Environment Shenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen 518055China Key Laboratory of northwest Water Resources Environment and EcologyMinistry of EducationSchool of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’an 710055China CnAS Accredited Test Center Guangdong Engineering Technology Research Center of Air PurificationHealthlead Co.Ltd.Shenzhen 518055China School of Science Harbin Institute of Technology ShenzhenShenzhen 518055China

The edge-graphitized carbon nitride(C_(3)n_(4)-C g)was prepared by secondary pyrolysis to construct ZnO/C_(3)n_(4)-C g(ZCn)type-Ⅱheteroj.nction photocatalyst via a facile sonication dispersion method,which achieved∼7.04-fold and∼18.3-fold enhanced visible-light-driven photocatalytic performance for refrac-tory micropollutant removal and simultaneous hydrogen(H_(2))evolution respectively compared to con-ventional ZnO/g-C_(3)n_(4)Step-scheme *** apparent quantum efficiency of the ZCn_(0.4)het-eroj.nction reaches 0.92%(λ=420 nm).Such excellent performance stems from that the edge-graphene moieties stitched onto the interface of heteroj.nction extend light absorption to the full visible spec-trum,meanwhile,the built-in electric field generated during Fermi level alignment accompanying fa-vorable band-bending structure provides an effective pathway for the rapid migration of photoinduced electrons via the edge graphene channel to improve interfacial charge separation ***,the midgap states introduced in ZCn heteroj.nction could temporarily retain photoexcited electrons to effectively inhibit the in situ carrier recombination for improved photocatalytic H_(2)***,ZCn/peroxymonosulfate system exhibited excellent anti-interference performance against complex water bodies under visible illumination due to the synergistic effect between the co-existing anions and organic ***,the eco-friendly nature of the ZCn/peroxymonosulfate system showed no biotoxicity of reaction filtrate on cell proliferation after treatment,which avoided secondary ***-ering the outstanding performance in photocatalysis,the ZCn system exhibits broad potential for practical applications in water pollution control and green energy production.

关键词： ZnO C_(3)n_(4)-C g Heteroj.nction Photodegradation Hydrogen evolution

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n-acetylcysteine ameliorates erectile dysfunction in rats with hyperlipidemia by inhibiting oxidative stress and corpus cavernosum smooth muscle cells phenotypic modulation

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Asian journal of Andrology 2024年第1期26卷 99-106页

作者： wei Ding j.n-Hong Fan Li-Ren Zhong nan-Xiong Wang Lu-Hao Liu Hai-Bo Zhang Li Wang Ming-Qiang Wang Bing-Lin He An-yang wei Department of Urology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang 550002China Department of Urology Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhou 510000China Department of Urology Nanfang HospitalSouthern Medical UniversityGuangzhou 510000China Department of Urology Shenzhen Immigration Inspection General Station HospitalShenzhen 518000China Department of Organ Transplantation The Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang 550002China

Hyperlipidemia is a major risk factor for erectile dysfunction(ED).Oxidative stress and phenotypic modulation of corpus cavernosum smooth muscle cells(CcSMCs)are the key pathological factors of ED.n-acetylcysteine(nAC)can inhibit oxidative stress;however,whether nAc can alleviate pathological variations in the corpus cavernosum and promote erectile function recovery in hyperlipidemic rats remains unclear.A hyperlipidemia model was established using 27 eight-week-old male Sprague-Dawley(SD)rats fed a high-fat and high-cholesterol diet(hyperlipidemic rats,HR).In addition,9 male SD rats were fed a normal diet to serve as controls(nC).HR rats were divided into three groups:HR,HR+normal saline(nS),and HR+nAC(n=9 for each group;nS or nAc intraperitoneal injections were administered daily for 16 weeks).Subsequently,the lipid profiles,erectile function,oxidative stress,phenotypic modulation markers of ccsMCs,and tissue histology were *** experimental results revealed that erectile function was significantly impaired in the HR and HR+nS groups,but enhanced in the HR+nAC *** lipid levels,over-activated oxidative stress,and multi-organ lesions observed in the HR and HR+nS groups were improved in the HR+nAC ***,the HR group showed significant phenotypic modulation of CCSMCs,which was also inhibited by nAC *** report focuses on the therapeutic effect of nAc in restoring erectile function using a hyperlipidemic rat model by preventing CcSMC phenotypic modulationand attenuating oxidativestress.

关键词： erectile dysfunction hyperlipidemia n-acetylcysteine oxidative stress henotypic modulation

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Molecular phylogenetic relationships based on mitochondrial genomes of novel deep-sea corals(Octocorallia:Alcyonacea):Insights into slow evolution and adaptation to extreme deep-sea environments

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Zoological Research 2024年第1期45卷 215-225页

作者： Zhan-Fei wei Kai-Wen Ta nan-nan Zhang Shan-Shan Liu Liang Meng Kai-Qiang Liu Chong-yang Cai Xiao-Tong Peng Chang-wei Shao national Key Laboratory of Mariculture Biobreeding and Sustainable Goods Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdaoShandong 266071China BGI-Qingdao BGI-ShenzhenQingdaoShandong 266555China Institute of Deep-Sea Science and Engineering Chinese Academy of SciencesSanyaHainan 572000China

A total of 10 specimens of Alcyonacea corals were collected at depths ranging from 905 m to 1633 m by the manned submersible Shenhai Yongshi during two cruises in the South China Sea(SCS).Based on mitochondrial genomic characteristics,morphological examination,and sclerite scanning electron microscopy,the samples were categorized into four suborders(Calcaxonia,Holaxonia,Scleraxonia,and Stolonifera),and identified as 9 possible new cold-water coral *** of GC-skew dissimilarity,phylogenetic distance,and average nucleotide identity(AnI)revealed a slow evolutionary rate for the octocoral mitochondrial *** nonsynonymous(Ka)to synonymous(Ks)substitution ratio(Ka/Ks)suggested that the 14 protein-coding genes(PCGs)were under purifying selection,likely due to specific deep-sea environmental *** analysis of the median Ka/Ks values of five gene families and environmental factors indicated that the genes encoding cytochrome b(cyt b)and DnA mismatch repair protein(mutS)may be influenced by environmental factors in the context of deep-sea species *** study highlights the slow evolutionary pace and adaptive mechanisms of deep-sea corals.

关键词： Mitochondrial genome Alcyonacea Ka/Ks evolution Environmental factors

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Aflatoxin B1 decreased flesh flavor and inhibited muscle development in grass carp(Ctenopharyngodon idella)

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Animal nutrition 2024年第3期18卷 27-38页

作者： Xiang ning He Zhen Zhen Zeng wei Dan jiang Pei Wu yang Liu Sheng Yao Kuang Ling Tang Shu wei Li Lin Feng Xiao Qiu Zhou Animal nutrition Institute Sichuan Agricultural UniversityChengdu 611130China Fish nutrition and Safety Production University Key Laboratory of Sichuan Province Sichuan Agricultural UniversityChengdu 611130China Key Laboratory for Animal Disease-Resistance nutrition Ministry of EducationMinistry of Agriculture and Rural AffairsKey Laboratory of Sichuan ProvinceChengdu 611130China Animal nutrition Institute Sichuan Academy of Animal ScienceChengdu 610066China

In nature,aflatoxins,especially aflatoxin B1(AFB1),are the common mycotoxins,which cause serious health problems for humans and *** paper aimed to study the effects of AFB1 on flesh flavor and muscle development of grass carp(Ctenopharyngodon idella)and its *** were 1440 individual fish in total,with 6 treatments and each treatment replicated 3 *** 6 treatments were fed a control diet with different doses of AFB1(0.04,29.48,58.66,85.94,110.43 and 146.92μg/kg diet)for 60 ***1 increased myofiber diameter,as well as decreased myofiber density of grass carp muscle(Pntents of free amino acid decreased gradually(Pncreased in the muscle of grass *** levels of reactive oxygen species,malonaldehyde and protein carbonyl(PC)were increased(Pntioxidant enzyme(glutathione peroxidase,glutathione,glutathione reductase,total antioxidant capacity,anti-superoxide anion,and anti-hydroxyl radical)were decreased(Pn,dietary AFB1 decreased the content of collagen,and downregulated the mRnA and protein levels of transforming growth factor-β(TGF-β)/Smads signaling pathway in grass carp muscle(PnA and protein levels of myogenic regulatory factors were downregulated in grass carp muscle(Pnase-2(MMP-2)and matrix metalloproteinase-9(MMP-9)were increased(Pnd the protein levels of phosphorylate-38 mitogen-activated protein kinase(p-p38MAPK),phosphorylate-c-j.n n-terminal kinase,urokinase-type plasminogen activator(uPA),MMP-2 and MMP-9 were upregulated(PnⅠ,lamininβ1 and fibronectin were downregulated(Pncreased in the muscle of grass *** on the results of this study,we can draw the following conclusion:dietary AFB1 might damage flesh flavor and inhibit the muscle development through MAPK/uPA/MMP/extrac

关键词： Aflatoxin B1 Flesh flavor Muscle development Grass carp

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Highly efficient ternary organic solar cells with excellent open-circuit voltage and fill factor via precisely tuning molecular stacking and morphology

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Science China Chemistry 2024年第3期67卷 963-972页

作者： Dinghong Sun Zhenyu Chen jianfeng Zhang wei Song j.ngyu Shi j.ntao Zhu Yuanyuan Meng Fei j.n Shuncheng yang Ziyi Ge Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo 315211China Faculty of Material Science and Chemical Engineering Ningbo UniversityNingbo 315211China Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049China Department of Chemical and Environmental Engineering University of Nottingham NingboNingbo 315100China

The micro-morphology and molecular stacking play a key role in determining the charge transport process and nonradiative energy loss, thus impacting the performances of organic solar cells(OSCs). To address this issue, a non-fullerene acceptor PhC6-IC-F with alkylbenzene side-chain, possessing optimized molecular stacking, complementary absorption spectra and forming a cascade energy level alignment in the PM6:BTP-eC9 blend, is introduced as guest acceptor to improve efficiency of ternary OSCs. The bulky phenyl in the side-chain can regulate crystallinity and optimizing phase separation between receptors in ternary blend films, resulting in the optimal phase separations in the ternary films. As a result, high efficiencies of 18.33% as photovoltaic layer are obtained for PhC6-IC-F-based ternary devices with excellent fill factor(FF) of 78.92%. Impressively, the ternary system produces a significantly improved open circuit voltage(V_(oc)) of 0.857 V compared with the binary device,contributing to the reduced density of trap states and suppressed non-radiative recombination result in lower energy loss. This work demonstrates an effective approach for adjusting the aggregation, molecular packing and fine phase separation morphology to increase V_(oc) and FF, paving the way toward high-efficiency OSCs.

关键词： alkylbenzene side-chain morphology regulation ternary blends organic solar cells

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Sandwich-type composited solid polymer electrolytes to strengthen the interfacial ionic transportation and bulk conductivity for all-solid-state lithium batteries from room temperature to 120℃

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journal of Energy Chemistry 2024年第8期95卷 288-295,I0007页

作者： jiewen Tan Zhen Wang jiawu Cui Zhanhui jia Wensheng Tian Chao Wu Chengxin Peng Chengyong Shu Kang yang wei Tang School of Chemical Engineering and Technology Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina Center for Advancing Materials Performance from the nanoscale(CAMP-nano) State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong UniversityXi'an 710049ShaanxiChina State Key Laboratory of Space Power-sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245China School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Top-Energy Digital Manufacturing Technologies(Xi'an)Co. Ltd.Xi'an 710100ShaanxiChina

The insurmountable charge transfer impedance at the Li metal/solid polymer electrolytes(SPEs)interface at room temperature as well as the ascending risk of short circuits at the operating temperature higher than the melting point,dominantly limits their applications in solid-state batteries(SSBs).Although the inorganic filler such as CeO_(2)nanoparticle content of composite solid polymer electrolytes(CSPEs)can significantly reduce the enormous charge transfer impedance at the Li metal/SPEs interface,we found that the required content of CeO_(2)nanoparticles in SPEs varies for achieving a decent interfacial charge transfer impedance and the bulk ionic conductivity in *** this regard,a sandwich-type composited solid polymer electrolyte with a 10%CeO_(2)CSPEs interlayer sandwiched between two 50%CeO_(2)CSPEs thin layers(sandwiched CSPEs)is constructed to simultaneously achieve low charge transfer impedance and superior ionic conductivity at 30℃.The sandwiched CSPEs allow for stable cycling of Li plating and stripping for 1000 h with 129 mV polarized voltage at 0.1 mA cm^(-2)and 30℃.In addition,the LiFePO_(4)/Sandwiched CSPEs/Li cell also exhibits exceptional cycle performance at 30℃and even elevated120℃without short *** multi-layered CSPEs with optimized contents of the inorganic fillers can be an efficient method for developing all solid-state PEO-based batteries with high performance at a wide range of temperatures.

关键词： PEO-based solid electrolytes CeO_(2)nanoparticles Charge transfer impedance Sandwich-type composite electrolytes All-solid-state Li metal batteries

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High-efficiency sodium storage of Co_(0.85)Se/WSe_(2) encapsulated in n-doped carbon polyhedron via vacancy and heteroj.nction engineering

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Carbon Energy 2024年第1期6卷 94-107页

作者： Ya Ru Pei Hong Yu Zhou Ming Zhao jian Chen Li Xin Ge wei Zhang Chun Cheng yang Qing jiang Key Laboratory of Automobile Materials(jilin University) Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchunChina jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials Electron Microscopy CenterJilin UniversityChangchunChina

With the advantage of fast charge transfer,heteroj.nction engineering is identified as a viable method to reinforce the anodes'sodium storage ***,vacancies can effectively strengthen the na+adsorption ability and provide extra active sites for na+***,their synchronous engineering is rarely ***,a hybrid of Co_(0.85)Se/WSe_(2) heterostructure with Se vacancies and n-doped carbon polyhedron(CoWSe/nCP)has been fabricated for the first time via a hydrothermal and subsequent selenization *** aberration-corrected transmission electron microscopy confirms the phase interface of the Co_(0.85)Se/WSe_(2) heterostructure and the existence of Se *** functional theory simulations reveal the accelerated charge transfer and enhanced na+adsorption ability,which are contributed by the Co_(0.85)Se/WSe_(2) heterostructure and Se vacancies,*** expected,the CoWSe/nCP anode in sodium-ion battery achieves outstanding rate capability(339.6 mAh g^(−1) at 20 A g^(−1)),outperforming almost all Co/W-based selenides.

关键词： Co_(0.85)Se/WSe_(2)heterostructure density functional theory simulations n-doped carbon polyhedron Se vacancies sodium-ion batteries

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