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An intravascular needle coated by ZnO nanoflowers for in vivo elimination of circulating tumor cells

Nano Research 2023年第1期16卷 873-881页

作者： Jinqi Li Xinlei Li Yangfeng Zhang Kun Jin Ye Yuan Ruiqi Ming Yuhua Yang Tongsheng Chen MOE Key laboratory of Laser Life Science&Institute of Laser Life Science College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China Guangdong Provincial Key laboratory of Laser Life Science College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China SCNU qingyuan Institute of Science and Technology innovation Co. Ltd.South China Normal UniversityQingyuan 511500China Guangzhou Key laboratory of Spectral Analysis and Functional Probes College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China State Key laboratory of Optoelectronic Materials and Technologies Nanotechnology Research CenterSchool of Materials Science&EngineeringSun Yat-sen UniversityGuangzhou 510275China

Circulating tumor cells(CTCs)are recognized as the main source of tumor recurrence and *** the CTCs in peripheral blood provides a new strategy to reduce the probability of recurrence or ***,we proposed a concept to eliminate CTCs by inserting a needle in the superficial blood *** the property of ZnO and the structure of nanoflowers,we designed a medical needle coated with ZnO nanoflowers(ZNFs),which killed about 90%of captured CTCs in vitro and prevented the injecting CTCs from spreading to lung tissue in BABL/c mouse *** in vitro and in vivo demonstrated that the CTCs not only were captured and killed,but also detached from the needle surface after dead,enabling the ZNFs needle continually eliminate ***,a theoretical model was presented to explain the penetration mechanism of cells by nanostructures,which indicated that nanoflowers structure can puncture CTCs more easily than vertical nanowire *** concept of inserting an intravascular needle provides a potential strategy to lower the concentration of CTCs in blood and reduce the probability of tumor recurrence or metastasis.

关键词： ZnO nanoflowers circulating tumor cells elimination cancer treatment theoretical model

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Hydrophobic,Hemostatic and Durable Nanofiber Composites with a Screw‑Like Surface Architecture for Multifunctional Sensing Electronics

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Advanced Fiber Materials 2023年第6期5卷 2040-2054页

作者： Wei Xiao Yutong Chen Gaoxing Pan Jun Yan Jin Zhang Jiefeng Gao School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002JiangsuPeople’s Republic of China MOE Key laboratory for Analytical Science of Food Safety and Biology College of ChemistryFuzhou UniversityFuzhou 350108FujianPeople’s Republic of China qingyuan innovation laboratory College of Chemical EngineeringFuzhou University2 Xueyuan RoadFuzhou 350108FujianPeople’s Republic of China

MXene-decorated textile composites have attracted tremendous attention,due to their possible applications in wearable sensing ***,the easy oxidation,low strain sensitivity and poor water-proof performance restrict the applications of MXene-based smart ***,we developed a flexible and hydrophobic polymer nanofibrous composite with a screw-like structure by assembling MXene nanosheets onto a prestretched polyurethane(PU)nanofiber surface and subsequent fluorination *** thin hydrophobic fluorosilane layer can greatly prevent the MXene shell from being oxidized and simultaneously endow the nanofiber composite with good hemostatic *** wrinkled MXene shell with the screw-like structure enhances the sensitivity of MXene@PU nanofiber composite(HMPU)toward strain,and the hydrophobic strain sensor exhibits a high gauge factor(324.4 in the strain range of 85–100%),and can detect different human *** virtue of its excellent water-proof performance,HMPU can function normally in corrosive and underwater *** addition,the resistance of HMPU exhibits a negative temperature coefficient;thus,HMPU shows potential for monitoring temperature and providing a temperature *** multifunctional HMPU shows broad application prospects in smart wearable electronics.

关键词： Nanofibrous composite MXene nanosheets Strain sensor Temperature alarm

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Conversion of acetate and glyoxylate to fumarate by a cell-free synthetic enzymatic biosystem

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Synthetic and Systems Biotechnology 2023年第2期8卷 235-241页

作者： Congli Hou Linyue Tian Guoli Lian Li-Hai Fan Zheng-Jun Li College of Chemical Engineering Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine ChemicalsFuzhou UniversityFuzhou350108People’s Republic of China College of Life Science and Technology Beijing University of Chemical TechnologyBeijing100029People’s Republic of China qingyuan innovation laboratory Quanzhou362801People’s Republic of China

Fumarate is a value-added chemical that is widely used in food,medicine,material,and agriculture *** the rising attention to the demand for fumarate and sustainable development,many novel alternative ways that can replace the traditional petrochemical routes *** in vitro cell-free multi-enzyme catalysis is an effective method to produce high value *** this study,a multi-enzyme catalytic pathway comprising three enzymes for fumarate production from low-cost substrates acetate and glyoxylate was *** acetyl-CoA synthase,malate synthase,and fumarase from Escherichia coli were selected and the coenzyme A achieved *** enzymatic properties and optimization of reaction system were investigated,reaching a fumarate yield of 0.34 mM with a conversion rate of 34%after 20 h of *** proposed and realized the conversion of acetate and glyoxylate to fumarate in vitro using a cell-free multi-enzyme catalytic system,thus providing an alternative approach for the production of fumarate.

关键词： Fumarate Cell-free Multi-enzyme catalysis Acetate Glyoxylate

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Synthesis of acridinones via palladium-catalyzed reductive annulation of 2-nitrobenzaldehydes and resorcinols

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Organic Chemistry Frontiers 2022年第4期9卷 953-958页

作者： Rong Xie Wenhui Mao Huanhuan Jia Guangpeng Lu Jialu Sun Huanfeng Jiang He Zhao Min Zhang Key Lab of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyWushan Rd-381Guangzhou 510641People’s Republic of China qingyuan Huayuan Institute of Science and Technology Collaborative innovation Co. Ltd.China

The catalytic conversion of biomass-derived feedstocks into functional molecules is of significance to synthetic organic ***,through a palladium-catalyzed reductive annulation reaction of resorcinols and 2-nitrobenzaldehydes,we present a new approach for the direct synthesis of acridinone derivatives,featuring operational simplicity,good substrate compatibility,and readily available feedstocks.

关键词： palladium benzaldehyde catalyzed

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Electrodeposited transparent PEDOT for inverted perovskite solar cells:improved charge transport and catalytic performances

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Rare Metals 2021年第9期40卷 2402-2414页

作者： Cong-Tan Zhu Ying Yang Fei-Yu Lin Yuan Luo Shu-Peng Ma Liu Zhu Xue-Yi Guo School of Metallurgy and Environment Central South UniversityChangsha 410083China First Rare Materials Co. LtdQingyuan 511517China

The acidic, corrosive effect of sodium polystyrene sulfonate(PSS) in poly 3,4-ethylenedioxythiophene:sodium polystyrene sulfonate(PEDOT:PSS) limits the stability of inverted perovskite solar cells(PSCs) based on the ITO/PEDOT:PSS/perovskite/PCBM/BCP/Ag structure. In this work, a poly 3,4-ethylenedioxythiophene(PEDOT) hole transport layer(HTL) with high hole mobility and good catalytic performance was prepared by electrochemical cyclic voltammetry(CV) method for inverted PSCs. By controlling the CV cycles(from 1 to 5 cycles) and EDOT monomer solution concentration(from0.5 to 2.0 mmol·L^(-1)) of electrochemical deposition, the thickness, morphology, optical and electrochemical properties of PEDOT could be accurately adjusted. The optimal photovoltaic performance with current density(J_(sc)) of 22.19 mA·cm^(-2), open circuit voltage(V_(oc)) of 0.94 V, fill factor(FF) of 0.65 and photoelectric conversion efficiency of 13.56% was obtained when deposition of PEDOT with 1 CV cycle and EDOT concentration of 0.5 mmol·L^(-1). At this point, the perovskite showed good crystallization,optimal optical, charge transport and recombination performance, resulting in better V_(oc)and photoelectric conversion efficiency(PCE) compared to the devices with higher CV cycle numbers and 3,4-ethylenedioxythiophene(EDOT) concentration. For comparison with spin-coated PEDOT:PSS, the device with electrodeposited PEDOT showed improved J_(sc)and comparable V_(oc), which may result from its better charge transport and catalytic *** device with spin-coated PEDOT:PSS showed photoelectric conversion efficiency of 12.25%, which was lower than that based on electrodeposited PEDOT(13.56%) with1 CV cycles and 0.5 mmol·L^(-1) EDOT concentration. And the device with electrodeposited PEDOT as HTLs showed more excellent air stability. In ambient air((32 ± 5) ℃ and RH: 70% ± 20%), it still maintained more than 80%of the initial photoelectric conversion efficiency after1000 h. In comparison, the photoe

关键词： Electrochemically cyclic voltammetry Inverted perovskite solar cells Electrodeposited PEDOT Hole mobility Tafel analysis

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Redistributing Cu species in Cu-SSZ-13 zeolite as NH3-SCR catalyst via a simple ion-exchange

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Chinese Journal of Chemical Engineering 2022年第1期35卷 329-341页

作者： Ben Liu Nangui Lv Chan Wang Hongwei Zhang Yuanyuan Yue Jingdong Xu Xiaotao Bi Xiaojun Bao National Engineering Research Center of Chemical Fertilizer Catalyst College of Chemical EngineeringFuzhou UniversityFuzhou 350002China qingyuan innovation laboratory Quanzhou 362801China Sinochem Quanzhou Energy Technology Co LtdQuanzhou 362000China Department of Chemical&Biological Engineering University of British Columbia2360 East MallVancouverBC V6T 1Z3Canada State Key laboratory of Photocatalysis on Energy&Environment College of ChemistryFuzhou UniversityFuzhou 350116China

The nature and distribution of Cu species in Cu-SSZ-13 play a vital role in selective catalytic reduction of NO by NH3(NH3-SCR),but existing methods for adjusting the Cu distribution are complex and difficult to ***,we report a simple and effective ion-exchange approach to regulate the Cu distribution in the one-pot synthesized Cu-SSZ-13 that possesses sufficient initial Cu species and thus provides a“natural environment”for adjusting Cu distribution *** using this proposed strategy,a series of Cu-SSZ-13x zeolites with different Cu contents and distributions were *** is shown that the dealumination of the as-synthesized Cu-SSZ-13 during the ion-exchange generates abundant vacant sites in the double six-membered-rings of the SSZ-13 zeolite for relocating Cu2+species and thus allows the redistribution of the Cu *** catalytic results showed that the ion-exchanged Cu-SSZ-13 zeolites exhibit quite different catalytic performance in NH3-SCR reaction but superior to the parent *** structure–activity relationship analysis indicates that the redistribution of Cu species rather than other factors(e.g.,crystallinity,chemical composition,and porous structure)is responsible for the improved NH3-SCR performance and SO_(2) and H_(2)O *** work offers an effective method to precisely adjust the Cu distribution in preparing the industrial SCR catalysts.

关键词： Catalyst Zeolite Cu-SSZ-13 Ion-exchange Redistribution of Cu species Selective catalytic reduction(SCR)

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Challenges and prospects in artificial nitrogen cycle for energy decarbonization

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National Science Open 2023年第2期2卷 89-92页

作者： Huihuang Fang Yanliang Zhou Xiaobo Peng Yu Luo Xiuyun Wang Shijing Liang Lilong Jiang National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou UniversityFuzhou 350002China qingyuan innovation laboratory Quanzhou 362801China

Fossil fuels still dominate global energy structure in our modern society,and have led to massive CO_(2) ***,ammonia has been regarded as a clean energy carrier toward diminishing or even eliminating the CO_(2) emissions and has received significant *** ammonia can be synthesized from atmospheric dinitrogen and green hydrogen from water electrolysis by renewable energies,and converted back into dinitrogen and water for energy release,as shown in Figure *** from the matured ammonia manufacture and transportation throughout the world for over one century,the already existing high-capacity infrastructure helps efficient storage and redistribution of ammonia with lowest economic ***,although considerable progress has been made in this artificial nitrogen cycle,there are still many challenges in developing highly-efficient routes and ***,we evaluate the current catalytic routes of ammonia synthesis(including thermocatalytic synthesis,electrocatalytic synthesis and photocatalytic synthesis)and ammonia utilization(involving ammonia decomposition,direct ammonia fuel cells and ammonia combustion).We also discuss the key issue in each process,and anticipate that our viewpoints and opinions could facilitate the developments of artificial nitrogen cycle and energy decarbonization.

关键词： ammonia synthesis cycle

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Electrospun Nanocomposite Fibrous Membranes for Sustainable Face Mask Based on Triboelectric Nanogenerator with High Air Filtration Efficiency

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Advanced Fiber Materials 2023年第4期5卷 1505-1518页

作者： Yue Yang Yuchen Yang Jianying Huang Shuhui Li Zheyi Meng Weilong Cai Yuekun Lai College of Chemical Engineering Fuzhou University350116 FuzhouPeople’s Republic of China qingyuan innovation laboratory 362801 QuanzhouPeople’s Republic of China Department of Chemistry University College LondonLondon WC1H 0AJUK Wenzhou Institute University of Chinese Academy of ScienceZhejiang 325000 WenzhouPeople’s Republic of China State Key laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University201620 ShanghaiPeople’s Republic of China

Air pollution caused by the rapid development of industry has always been a great issue to the environment and human being’s ***,the efficient and persistent filtration to PM_(0.3) remains a great ***,a self-powered filter with micro-nano composite structure composed of polybutanediol succinate(PBS)nanofiber membrane and polyacrylonitrile(PAN)nanofiber/polystyrene(PS)microfiber hybrid mats was prepared by *** balance between pressure drop and filtration efficiency was achieved through the combination of PAN and *** addition,an arched TENG structure was created using the PAN nanofiber/PS microfiber composite mat and PBS fiber *** by respiration,the two fiber membranes with large difference in electronegativity achieved contact friction charging *** open-circuit voltage of the triboelectric nanogenerator(TENG)can reach to about 8 V,and thus the high filtration efficiency for particles was achieved by the electrostatic *** contact charging,the filtration efficiency of the fiber membrane for PM_(0.3) can reach more than 98%in harsh environments with a PM_(2.5) mass concentration of 23,000µg/m^(3),and the pressure drop is about 50 Pa,which doesn’t affect people’s normal ***,the TENG can realize self-powered supply by continuously contacting and separating the fiber membrane driven by respiration,which can ensure the long-term stability of filtration *** filter mask can maintain a high filtration efficiency(99.4%)of PM_(0.3) for 48 consecutive hours in daily environments.

关键词： Electrospinning Self-powered filter structure Triboelectric nanogenerator Air filtration

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Structured illumination-based super-resolution live-cell quantitative FRET imaging

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Photonics Research 2023年第5期11卷 887-896页

作者： ZEWEI LUO GE WU MENGTING KONG ZHI CHEN ZHENGFEI ZHUANG JUNCHAO FAN TONGSHENG CHEN Key laboratory of Laser Life Science Ministry of EducationCollege of BiophotonicsSouth China Normal UniversityGuangzhou 510631China Guangdong Key laboratory of Laser Life Science College of BiophotonicsSouth China Normal UniversityGuangzhou 510631China SCNU qingyuan Institute of Science and Technology innovation South China Normal UniversityQingyuan 511520China Chongqing Key laboratory of Image Cognition College of Computer Science and TechnologyChongqing University of Posts and TelecommunicationsChongqing 400065China

Forster resonance energy transfer(FRET)microscopy provides unique insight into the functionality of biological systems via imaging the spatiotemporal interactions and functional state of *** FRET signals from sub-diffraction regions requires super-resolution(SR)FRET imaging,yet is challenging to achieve from living ***,we present an SR FRET method named SIM-FRET that combines SR structured illumination microscopy(SIM)imaging and acceptor sensitized emission FRET imaging for live-cell quantitative SR FRET *** the robust co-localization prior of donor and accepter during FRET,we devised a mask filtering approach to mitigate the impact of SIM reconstruction artifacts on quantitative FRET *** to wide-field FRET imaging,SIM-FRET provides nearly twofold spatial resolution enhancement of FRET imaging at sub-second timescales and maintains the advantages of quantitative FRET analysis in *** validate the resolution enhancement and quantitative analysis fidelity of SIM-FRET signals in both simulated FRET models and live-cell FRET-standard construct *** method reveals the intricate structure of FRET signals,which are commonly distorted in conventional wide-field FRET imaging.

关键词： illumination resolution donor

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Ring finger protein 157 is a prognostic biomarker and is associated with immune infiltrates in human breast cancer

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BIOCELL 2023年第10期47卷 2265-2281页

作者： XIN ZHU BIN XIAO WENWU ZHANG XIAOYU SONG WEI GONG LINHAI LI XINPING CHEN School of Life Sciences Hainan UniversityHaikou570228China Department of Medical laboratory Hainan Cancer HospitalAffiliated Cancer Hospital of Hainan Medical UniversityHainan Tropical Cancer Research InstituteHaikou570312China Department of laboratory Medicine The Sixth Affiliated Hospital of Guangzhou Medical UniversityQingyuan People’s HospitalQingyuan511518China Graduate School Guangzhou University of Chinese MedicineGuangzhou510006China School of Pharmaceutical Sciences Hainan UniversityHaikou570228China

Background: The protein encoded by ring finger protein 157 (RNF157) is known to function as an E3 ubiquitinligase. However, whether the level of RNF157 expression in breast cancer correlates with prognosis and immune cellinfiltration among breast cancer patients remains to be further explored. Methods: In this study, publicly availabledatasets were used for evaluating RNF157 expression in different tumors compared with normal samples. Severalindependent datasets were screened for investigating the relationship between RNF157 and breast cancer survival,different mutation profiles, and tumor immune cell infiltration. We conducted a pathway enrichment analysis toidentify signaling pathways associated with RNF157. Results: Analysis of public and online databases revealed thatRNF157 expression markedly decreased in breast cancer tissue samples compared to non-carcinoma ***, immunohistochemistry assays also demonstrated this RNF157 down-regulation in breast cancer ***157 up-regulation could predict the improved survival of breast cancer cases. Further, different RNF157expression level groups exhibited different mutational profiles. Pathway enrichment profiling of RNF157-related genessuggested its possible involvement in regulating breast cancer via the mitogen-activated protein kinase (MAPK)pathway. RNA sequencing (RNA-seq) data and genomic enrichment analysis showed that RNF157 downregulatedseveral genes positively associated with the MAPK signaling pathway. We also explored RNF157 expression andimmune cell infiltration in breast cancer and found that RNF157 mRNA levels were negatively related to non-Timmune cell infiltration. Conclusion: According to our work, RNF157 may be a promising diagnostic biomarker andtherapeutic target for breast cancer.

关键词： RNF157 Prognosis Immune infiltrate MAPK signal pathway Breast cancer

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