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Alkyl chain modulation of asymmetric hexacyclic fused acceptor synergistically with wide bandgap third component for high efficiency ternary organic solar cells

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1713-1719页

作者： Shufang li Huilan Guan Can zhu Chaoyuan Sun Qingya Wei Jun Yuan Yingping Zou college of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Institute of Carbon Neutrality and New Energy School of Electronics and InformationHangzhou Dianzi UniversityHangzhou 310018China

Herein,two asymmetric hexacyclic fused small molecule acceptors(SMAs),namely BP4F-HU and BP4F-UU,were *** elongated outside chains in the BP4F-UU molecule played a crucial role in optimizing the morphology of blend film,thereby improving charge mobility and reducing energy loss within the corresponding ***,the PM6:BP4F-UU device exhibited a higher open-circuit voltage(V_(oc))of 0.878 V compared to the PM6:BP4F-HU device with a V_(oc)of 0.863 ***,a new wide bandgap SMA named BTP-TA was designed and synthesized as the third component to the PM6:BP4F-UU host binary devices,which showed an ideal complementary absorption spectrum in PM6:BP4F-UU *** addition,BTP-TA can achieve efficient intermolecular energy transfer to BP4F-UU by fluorescence resonance energy transfer(FRET)pathway,due to the good overlap between the photoluminescence(PL)spectrum of BTP-TA and the absorption region of ***,ternary devices with 15wt%BTP-TA exhibits broader photon utilization,optimal blend morphology,and reduced charge recombination compared to the corresponding binary ***,PM6:BP4F-UU:BTP-TA ternary device achieved an optimal power conversion efficiency(PCE)of 17.83%with simultaneously increased V_(oc)of 0.905 V,short-circuit current density(J_(sc))of 2..14 mA/cm^(2.,and fill factor(FF)of 75.38%.

关键词： asymmetric hexacyclic acceptor outside chain wide bandgap acceptor ternary organic solar cells

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Aggregation-induced Emission Probe for Fluorescence/Photoacoustic Dual-modality Imaging and Photodynamic/Photothermal Treatment

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Chemical Research in Chinese Universities 2024年第2期40卷 293-304页

作者： CHEN Peiyu ZHANG Guoyang li Jiguang MA lijun ZHOU Jiaying {2. Mingguang li Shuo WANG {2.o State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029P.R.China

The combination of near-infrared(NIR)fluorescence imaging(Fli)and photoacoustic imaging(PAI)can effectively compensate for each other’s inherent limitations,which can provide reliable and rich information on tumor ***,the development of FL/PA dual-modality imaging probes is beneficial for achieving precision cancer diagnosis and ***,we designed an efficient phototherapy agent methoxy bithiophene indene(OTIC),which was based on aggregation-induced emission(AIE)active *** improve the water dispersion and enrichment of OTIC at the tumor site,OTIC nanoparticles(OTIC NPs)were prepared by a nanoprecipitation *** balance between radiation and non-radiation energy dissipation was regulated by the strong donor-acceptor interaction and intramolecular *** OTIC NPs exhibited bright NIR fluorescence,photoacoustic signals,efficient generation of reactive oxygen species,and high photothermal conversion efficiency under NIR *** imaging of the tumor and mice sentinel lymph nodes(SLNs)with OTIC NPs was visualized by NIR FL/PA dual-modal *** the comprehensive imaging information provided by OTIC NPs in vivo,tumors were ablated under laser irradiation,which greatly improved the therapeutic *** NPs would be possible to realize the precise guidance of FL/PA imaging for tumor treatment in the future clinical application.

关键词： Aggregation-induced emission Dual-modality imaging Photodynamic/photothermal treatment

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Efficient biosynthesis of creatine by whole-cell catalysis from guanidinoacetic acid in Corynebacterium glutamicum

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Synthetic and Systems Biotechnology 2024年第1期9卷 99-107页

作者： Chunjian li Pengdong Sun Guoqing Wei Yuqi zhu Jingyuan li Yanfeng liu Jian Chen Yang Deng college of Food Science and Engineering Qingdao Agricultural UniversityQingdao 266109China Key Laboratory of Special Food Processing(Co-construction by Ministry and Province) Ministry of Agriculture Rural AffairsQingdao Agricultural UniversityQingdao 266109China Shandong Technology Innovation Center of Special Food Qingdao 266109China Qingdao Special Food Research Institute Qingdao 266109China Qingdao Nuoan Baite Biotechnology Co. Ltd.Qingdao 266109China Science Center for Future Foods Engineering Research Center of Ministry of Education on Food Synthetic Biotechnologyand Jiangsu Province Engineering Research Center of Food Synthetic BiotechnologyJiangnan UniversityWuxi 214122China Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationSchool of BiotechnologyJiangnan UniversityWuxi 214122China

Creatine is a naturally occurring derivative of an amino acid commonly utilized in functional foods and ***,the current industrial synthesis of creatine relies on chemical processes,which may hinder its utilization in certain ***,a biological approach was devised that employs whole-cell biocatalysis in the bacterium Corynebacterium glutamicum,which is considered safe for use in food production,to produce safe-for-consumption *** objective of this study was to identify a guanidinoacetate N-methyltransferase(GAMT)with superior catalytic activity for creatine *** employing whole-cell biocatalysis,a gamt gene from Mus caroli(Mcgamt)was cloned and expressed in *** ATCC 13032.resulting in a creatine titer of 3.37 g/***,the study employed a promoter screening strategy that utilized nine native strong promoters in *** to enhance the expression level of *** highest titer was achieved using the P1676 promoter,reaching 4.14 g/*** conditions of whole-cell biocatalysis were further optimized,resulting in a creatine titer of 5.42.g/*** is the first report of successful secretory creatine expression in ***,which provides a safer and eco-friendly approach for the industrial production of creatine.

关键词： Creatine Corynebacterium glutamicum Whole-cell biocatalysis Guanidinoacetate N-Methyltransferase Food additive

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Photocatalytic in situ H_(2.O_(2. production and activation for enhanced ciprofloxacin degradation over CeO_(2.-Co_(3)O_(4)/g-C_(3)N_(4):key role of CeO_(2.

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Rare Metals 2024年第6期43卷 2695-2707页

作者： Hong-Jie zhu Yi-Kai Yang Ming-Hui li Lu-Ning Zou Hai-Tao Zhao Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical Engin college of Ecology and Environment Anhui Normal UniversityWuhu241002China liaocheng YiLu Advanced Materials Co. LtdLiaocheng 252000China

The abused ciprofloxacin antibiotics have caused significant environmental *** oxidative degradation of ciprofloxacin exhibits promising efficacy,it often entails excessive energy ***,it is necessary to explore an effective and ecologically sustainable degradation ***,we demonstrated that g-C_(3)N_(4) decorated with the coordinated CeO_(2.and Co_(3)O_(4)(CeO_(2.-Co_(3)O_(4)/CN)exhibited effective ciprofloxacin photodegradation via in situ H_(2.O_(2. production and activation *** indicate that the introduced CeO_(2. enhances the transference of photogenerated electrons to O_(2. by adjusting the oxygen vacancy of photocatalyst,thereby increasing the generation of superoxide radicals,which in turn generate H_(2.O_(2.,resulting in a 2..4-fold increase in H_(2.O_(2. generation over g-C_(3)N_(4).Moreover,the in situ H_(2.O_(2.generation facilitated by CeO_(2. is confirmed to be essential for ciprofloxacin degradation via CeO_(2.-Co_(3)O_(4)/CN,as it provides enough oxidant for Co_(3)O_(4) to activate into hydroxyl radicals for the pollutants ***,CeO_(2.-Co_(3)O_(4)/CN achieves a ciprofloxacin degradation ratio of 97.7%within 80 *** study introduces a novel approach that combines H_(2.O_(2. generation and activation,offering an innovative perspective for achieving clean and efficient purification of antibiotic-contaminated water.

关键词： CeO_(2. In situ H_(2.O_(2.generation Ciprofloxacin degradation Photocatalyst

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Efficient and stable PtFe alloy catalyst for electrocatalytic methanol oxidation with high resistance to CO

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Journal of Energy Chemistry 2024年第3期90卷 327-336,I0008页

作者： Qian Yang Sifan Zhang Fengshun Wu lihua zhu Guang li Mingzhi Chen An Pei Yingliang Feng Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry College of Chemistry and Chemical EngineeringFaculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000JiangxiChina college of Chemistry and Chemical Engineering Xiamen UniversityXiamen 361005FujianChina

Direct methanol fuel cells(DMFC) are widely considered to be an ideal green energy conversion device but their widespread applications are limited by the high price of the Pt-based catalysts and the instability in terms of surface CO toxicity in long-term ***,the PtFe alloy nanoparticles(NPs) with small particle size(~4.12.nm) supported on carbon black catalysts with different Pt/Fe atomic ratios(Pt_(1)Fe_(2./C,Pt_(3)Fe_(4)/C,Pt_(1)Fe_(1)/C,and Pt_(2.Fe_(1)/C) are successfully prepared for enhanced anti-CO poisoning during methanol oxidation reaction(MOR).The optimal atomic ratio of Pt/Fe for the MOR is 1:2.and the mass activity of Pt_(1)Fe_(2./C(5.40 A mg_(Pt)^(-1)) is 13.5 times higher than that of conventional commercial Pt/C(Pt/C-JM)(0.40 A mg_(Pt)^(-1)).The introduction of Fe into the Pt lattice forms the PtFe alloy phase,and the electron density of Pt is reduced after forming the PtFe ***-situ Fourier transform infrared results indicate that the addition of oxyphilic metal Fe has reduced the adsorption of reactant molecules on Pt during the *** doping of Fe atoms helps to desorb toxic intermediates and regenerate Pt active sites,promoting the cleavage of C-O bonds with good selectivity of CO_(2.(58.1%).Moreover,the Pt_(1)Fe_(2./C catalyst exhibits higher CO tolerance,methanol electrooxidation activity,and long-term stability than other Pt_(x)Fe_(y)/C catalysts.

关键词： Alloy catalyst PtFe Methanol oxidation In-situ FTIR CO resistance

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Unraveling the role of iron on Ni-Fe alloy nanoparticles during the electrocatalytic ethanol-to-acetate process

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Nano Research 2024年第4期17卷 2328-2336页

作者： Junshan li Luming li Xinyu Ma Jun Wang Jun Zhao Yu Zhang Ren He Yaoyue Yang Andreu Cabot Yongfa {2. Institute for Advanced Study Chengdu University610106 ChengduChina State Key Laboratory of Environmental-Friendly Energy Materials Southwest University of Science and TechnologyMianyang 621010China college of Food and Biological Engineering Chengdu UniversityChengdu 610106China School of Chemistry and Environment Southwest Minzu UniversityChengdu 610041China Hebei Key Laboratory of Photoelectric Control on Surface and Interface College of ScienceHebei University of Science and TechnologyShijiazhuang 050018China Catalonia Institute for Energy Research-IREC Sant Adriàde BesòsBarcelona 08930CataloniaSpain ICREA Pg.Lluís Companys 23Barcelona 08010CataloniaSpain Department of Chemistry Tsinghua UniversityBeijing 100084China

The anodic electrooxidation of ethanol to value-added acetate is an excellent example of replacing the oxygen evolution reaction to promote the cathodic hydrogen evolution reaction and save ***,we present a colloidal strategy to produce Ni-Fe bimetallic alloy nanoparticles(NPs)as efficient electrocatalysts for the electrooxidation of ethanol in alkaline ***-Fe alloy NPs deliver a current density of 100 mA·cm^(-2. in a 1.0 M KOH solution containing 1.0 M ethanol merely at 1.5 V *** hydrogen electrode(RHE),well above the performance of other electrocatalysts in a similar *** continuous 10 h testing at this external potential,this electrode is able to produce an average of 0.49 mmol·cm^(-2.·h^(-1) of acetate with an ethanol-to-acetate Faradaic efficiency of 80%.A series of spectroscopy techniques are used to probe the electrocatalytic process and analyze the ***,density functional theory(DFT)calculations demonstrate that the iron in the alloy NPs significantly enhances the electroconductivity and electron transfer,shifts the rate-limiting step,and lowers the energy barrier during the ethanol-to-acetate reaction pathway.

关键词： electrocatalysis ethanol oxidation reaction alloy nanoparticle acetate biorefinery

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MCP-1 and IL-4 encapsulated hydrogel particles with macrophages enrichment and polarization capabilities for systemic lupus erythematosus treatment

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Nano Research 2024年第9期17卷 8316-8324页

作者： Shengjie zhu Danqing Huang Qichen Luan Yang li Jingjing Gan Yuanjin Zhao lingyun Sun Department of Rheumatology and Immunology Nanjing Drum Tower HospitalClinical Medical College of Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjing 210096China State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China

Macrophages play a pivotal role in systemic lupus erythematosus(SLE)*** have been made to develop multifunctional drug delivery systems capable of directing macrophage ***,we present a novel hyaluronic acid methacrylate(HAMA)hydrogel microparticle encapsulating multiple cytokines for SLE remission though enhancing macrophage *** HAMA microparticles loaded with monocyte chemotactic protein-1(MCP-1)and interleukin-4(IL-4)were fabricated by using a microfluidic *** released MCP-1 facilitates the aggregation of inflammatory macrophages,after which IL-4 induces the macrophage phenotype shift from inflammatory M1 to immune-protective M2.thus restoring immune *** have demonstrated in MRL/lpr mice that the hydrogel microparticles could improve their efficacy of intraperitoneal drug delivery,modulate immune function,and attenuate the disease *** results suggest that our proposed microparticles delivery platform has potential clinical value for treating autoimmune diseases.

关键词： microfluidics M2.polarization hydrogel drug delivery systemic lupus erythematosus(SLE)

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Pd@Ir-LOD multienzyme utilizing endogenous lactate consumption cooperates with photothermal for tumor therapy

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Nano Research 2024年第1期17卷 270-281页

作者： Zichen Ye Yun li Jingchao li Xinyan Hu Jinyang Zheng Gongxin Zhang Sijin Xiang Tianbao {2. Zhide Guo Xiaolan Chen State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials and Engineering Research Center for Nano-Preparation Technology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics&Center for Molecular Imaging and Translational Medicine School of Public Health Xiamen UniversityXiamen 361102China The High Educational Key Laboratory for Biomedical Engineering&Key Laboratory of Fire Retardant Materials of Fujian Province Department of BiomaterialsCollege of MaterialsXiamen UniversityXiamen 361102China

Lactic acid(LA)plays a major role in the occurrence,development,and spread of *** by its high accumulation in tumor site,a novel lactate oxidase(LOD)conjugated two-dimensional Pd@Ir nanoplatform(Pd@Ir-LOD,PIL)was fabricated to combine cascade reaction with photothermal for tumor *** detail,the overexpressed LA in tumor microenvironment(TME)was a key factor to activate the PIL-based cascade reaction:(1)Plenty of H_(2.O_(2.could be generated from LA by the catalysis of LOD with O_(2.;(2.potent·OH was produced from H_(2.O_(2.due to the peroxidase(POD)-like activity of PIL;(3)meantime,PIL’s catalase(CAT)-like activity could decompose part H_(2.O_(2.into O_(2.to achieve the purpose of LA cyclic ***,the reduced glutathione(GSH)scavenging capability of PIL might protect the produced reactive oxygen species(ROS)from being cleared to further improve the cascade therapeutic *** importantly,PIL had excellent photothermal conversion efficiency(37.35%)and manifested a surprising temperature rising effect in *** together,the decreasing LA concentration,accumulation of high-toxic ROS,the depletion of GSH together with the higher intra-tumoral temperature potently enhanced in vivo antitumor ***,a promising therapeutic tactic based on PIL integrating endogenous LA consumption,chemodynamic therapy(CDT),and photothermal therapy(PTT)has been put forward.

关键词： lactate oxidase chemodynamic therapy photothermal therapy cascade reaction tumor microenvironment

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Exogenous melatonin improves cotton yield under drought stress by enhancing root development and reducing root damage

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Journal of Integrative Agriculture 2024年第10期23卷 3387-3405页

作者： lingxiao zhu Hongchun Sun Ranran Wang Congcong Guo liantao liu Yongjiang Zhang Ke Zhang Zhiying Bai Anchang li Jiehua zhu Cundong li State Key Laboratory of North china Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of HebeiProvince/college of Agronomy Hebei Agricultural UniversityBaoding 071000China college of Plant Protection Hebei Agricultural UniversityBaoding 071000China

The exogenous application of melatonin by the root drenching method is an effective way to improve crop drought ***,the optimal concentration of melatonin by root drenching and the physiological mechanisms underlying melatonin-induced drought tolerance in cotton(Gossypium hirsutum L.)roots remain *** study determined the optimal concentration of melatonin by root drenching and explored the protective effects of melatonin on cotton *** results showed that 50μmol L-1 melatonin was optimal and significantly mitigated the inhibitory effect of drought on cotton seedling *** melatonin promoted root development in drought-stressed cotton plants by remarkably increasing the root length,projected area,surface area,volume,diameter,and *** also mitigated the drought-weakened photosynthetic capacity of cotton and regulated the endogenous hormone contents by regulating the relative expression levels of hormone-synthesis genes under drought ***-treated cotton seedlings maintained optimal enzymatic and non-enzymatic antioxidant capacities,and produced relatively lower levels of reactive oxygen species and malondialdehyde,thus reducing the drought stress damage to cotton roots(such as mitochondrial damage).Moreover,melatonin alleviated the yield and fiber length declines caused by drought *** together,these findings show that root drenching with exogenous melatonin increases the cotton yield by enhancing root development and reducing the root damage induced by drought *** summary,these results provide a foundation for the application of melatonin in the field by the root drenching method.

关键词： cotton drought melatonin root morphology root physiology yield

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Free-standingβ-Ta_(2.O_(5)/SWCNTs composite film for high-rate li-ion storage

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Science china(Technological Sciences) 2024年第2期67卷 616-626页

作者： WU ZhiMin liU JiaJia HE XingYu BIAN Jing zhu XianJun CHEN JianMei li JianMin college of Electronic and Optical Engineering&college of Flexible Electronics(Future Technology) Nanjing Universityof Posts and TelecommunicationsNanjing 210023China Department of Pathology college of Medicine University of CincinnatiCincinnatiOH 45267USA

The rapid development of portable and wearable electronic devices is responding to the urgent demand for high-efficiency flexible energy storage *** supercapacitors,showing long cycle life,high power density,and good safety,are considered ideal ***,the relatively low energy density restricts their practical *** a large dielectric constant of 18-46,Ta_(2.O_(5)-based materials typically exhibit excellent electron-binding ability,which is critical for enhancing the energy density of *** this work,the free-standingβ-Ta_(2.O_(5)/single-walled carbon nanotubes(SWCNTs)composite film was prepared,with a highβ-Ta_(2.O_(5)loading of over 70%.By anchoringβ-Ta_(2.O_(5)nanoparticles onto the surface of SWCNTs,the system’s flexibility and conductivity were significantly enhanced,which also facilitated the intercalation electrodynamics of metal *** a result,the flexibleβ-Ta_(2.O_(5)/SWCNTs film exhibits excellent li-ion storage performance,with a high volumetric specific capacitance of 392.3 F cm^(-3)at the scan rate of 10 mV s^(-1)and 198.9 F cm^(-3)at 500 mV s^(-1).In addition,the asymmetric device,assembled by theβ-Ta_(2.O_(5)/SWCNTs and activated carbon films,shows a high energy density of 45.5 Wh kg^(-1)at the power density of 10.8 kW kg^(-1).This technique opens up a new avenue for improving the energy density and rate performance of flexible supercapacitors.

关键词： pseudocapacitor li-ion storage β-Ta_(2.O_(5)/SWCNTs film flexible device high-rate capability

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