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Fluorine-doped carbon quantum dots with deep-red emission for hypochlorite determination and cancer cell imaging

Chinese Chemical Letters 2024年第6期35卷 433-438页

作者： Boran cheng Lei Cao Chen Li fang-Yi Huo Qian-fang Meng Ganglin Tong Xuan Wu Lin-Lin Bu Lang Rao Shubin wang Department of Oncology Shenzhen Key Laboratory of Gastrointestinal Cancer Translational ResearchCancer InstitutePeking University Shenzhen HospitalShenzhen-Peking University-Hong Kong University of Science and Technology Medical CenterShenzhen 518036China Institute of Biomedical Health Technology and Engineering Shenzhen Bay LaboratoryShenzhen 518132China The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of Oral Biomedicine Ministry of Education School&Hospital of StomatologyWuhan UniversityWuhan 430079China

As a type of new carbon-based nanomaterials,carbon dots(CDs)possess exceptional optical properties,making them highly desirable for use in fluorescent ***,the CDs with deep-red(DR)or near-infrared(NIR)emission have rarely been *** this work,we prepared deep-red emissive fluorine-doped carbon quantum dots(F-CDs)by introducing a precursor simultaneously containing fluorine and *** synergistic effect of nitrogen doping and D-π-A pattern production contributed to the maximum emission of F-CDs at 636 nm with an absolute quantum yield of 36.00%±0.68%.Moreover,we designed an F-CDs-based fluorescence assay to determine the content of hypochlorite(ClO^(-)),with a limit of detection(LOD)as low as 15.4 nmol/L,indicating the high sensitivity of F-CDs to ClO^(-).In real samples,the F-CDs-based fluorescent sensor exhibited excellent sensitivity and selectivity in the detection of ClO^(-),with an error below 2%,suggesting their great potential in daily *** cancer cell imaging,the F-CDs not only demonstrated high sensitivity to ClO^(-)but also exhibited excellent mitochondria targeting,as evidenced by the high Pearson's correlation coefficient(PCC)of 0.93 in colocalization *** work presented here suggests the great potential of replacing commercial dyes with F-CDs for highly specific mitochondria labeling and cell imaging.

关键词： Carbon dots Near-infrared Cell imaging Mitochondria labeling Hypochlorite determination

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Genomic features for adaptation and evolutionary dynamics of four major Asian domestic carps

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Science China(Life Sciences) 2024年第6期67卷 1308-1310页

作者： cheng wang Liandong Yang Yongrui Lu chengchi fang Xiaoni Gan Yiyu Chen Shunping He State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming 650223China Academy of Plateau Science and Sustainability Qinghai Normal UniversityXining 810016China National Natural Science Foundation of China Beijing 100085China

Dear Editor,The coexistence of various species in a shared natural environment often results in the differentiation of their ecological niches,as they adapt to specific ecological roles(Jani?ováet al.,2018),this process leads to the development of distinct phenotypic traits and dietary preferences(Li et al.,2021).Studying this adaptive evolution,the four major Asian domestic carps,namely Ctenopharyngodon idella(grass carp),Mylopharyngodon piceus(black carp).

关键词： Asian evolutionary ecological

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Can perfluorooctanoic acid be effectively degraded usingβ-PbO_(2)reactive electrochemical membrane?

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Chinese Chemical Letters 2024年第7期35卷 196-199页

作者： Xubin Qian Lei Xu Xu Ge Zhun Liu cheng fang Jianbing wang Junfeng Niu College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China College of Water Resources and Hydropower Engineering North China Electric Power UniversityBeijing 102206China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China Global Centre for Environmental Remediation(GCER) University of NewcastleCallaghanNSW 2308Australia School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China

Aqueous perfluorooctanoic acid(PFOA)elimination has raised significant concerns due to its persistence and ***β-PbO_(2)plate anodes have shown efficient mineralization of PFOA,it remains unclear whether PFOA can be effectively degraded usingβ-PbO_(2)reactive electrochemical membrane(REM).Herein,we assessed the performance of Ti/SnO_(2)-Sb/La-PbO_(2)REM for PFOA removal and proposed a possible degradation *** a current density of 10 mA/cm2and a membrane flux of 8500(liters per square meter per hour,LMH),the degradation efficiency of 10 mg/L PFOA was merely8.8%,whereas the degradation efficiency of 0.1 mg/L PFOA increased to 96.6%.Although the porous structure of theβ-PbO_(2)REM provided numerous electroactive sites for PFOA,the generated oxygen bubbles in the pores could block the pore channels and adsorb PFOA *** hindered the protonation process and significantly impeded the degradation of high-concentration *** experiments indicated that·OH played dominant role in PFOA *** electrical energy per order to remove 0.1 mg/L PFOA was merely 0.74 Wh/L,which was almost an order of magnitude lower than that of other anode *** study presents fresh opportunities for the electrochemical degradation of low-concentration PFOA usingβ-PbO_(2)REM.

关键词： Perfluorooctanoic acid β-PbO_(2) Reactive electrochemical membrane Electrochemical oxidation

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A new scheme of PM_(2.5)and O_(3) control strategies with the integration of SOM,GA and WRF-CAMx

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Journal of Environmental Sciences 2024年第4期138卷 249-265页

作者： Wenjiao Duan Xiaoqi wang Shuiyuan cheng Ruipeng wang Key Laboratory of Beijing on Regional Air Pollution Control Faculty of Environment and LifeBeijing University of TechnologyBeijing 100124China

Previous air pollution control strategies didn’t pay enough attention to regional collaboration and the spatial response sensitivities,resulting in limited control effects in *** study proposed an effective PM_(2.5)and O_(3) control strategy scheme with the integration of Self-Organizing Map(SOM),Genetic Algorithm(GA)and WRF-CAMx,emphasizing regional collaborative control and the strengthening of control in sensitive *** scheme embodies the idea of hierarchical management and spatial-temporally differentiated management,with SOM identifying the collaborative subregions,GA providing the optimized subregion-level priority of precursor emission reductions,and WRF-CAMx providing response sensitivities for grid-level priority of precursor emission *** Beijing-Tianjin-Hebei and the surrounding area(BTHSA,“2+26”cities)as the case study area,the optimized strategy required that regions along Taihang Mountains strengthen the emission reductions of all precursors in PM_(2.5)-dominant seasons,and strengthen VOCs reductions but moderate NOx reductions in O_(3)-dominant *** spatiotemporally differentiated control strategy,without additional emission reduction burdens than the 14th Five-Year Plan proposed,reduced the average annual PM_(2.5)and MDA8 O_(3) concentrations in 28 cities by 3.2%-8.2% and 3.9%-9.7% respectively in comparison with non-differential control strategies,with the most prominent optimization effects occurring in the heavily polluted seasons(6.9%-18.0%for PM_(2.5)and 3.3%-14.2% for MDA8 O_(3),respectively).This study proposed an effective scheme for the collaborative control of PM_(2.5)and O_(3) in BTHSA,and shows important methodological implications for other regions suffering from similar air quality problems.

关键词： PM_(2.5)and O_(3)control SOM GA WRF-CAMx Bionic algorithm Machine learning

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Tunable near-infrared light emission from layered TiS_(3) nanoribbons

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Frontiers of physics 2024年第4期19卷 103-111页

作者： Junrong Zhang cheng Chen Yanming wang Yang Lu Honghong Li Xingang Hou Yaning Liang Long fang Du Xiang Kai Zhang Junyong wang School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Nanophotonic Materials and Devices&Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China Frontier Institute of Chip and System Fudan UniversityShanghai 200438China School of Materials Science and Engineering Shanghai UniversityShanghai 200444China College of Energy&Power Engineering Inner Mongolia University of TechnologyHohhot 010051China

The low-dimensional light source shows promise in photonic integrated *** layered van der Waals material that exhibits luminescence in the near-infrared optical communication waveband is an essential component in on-chip light ***,the tunable near-infrared photoluminescence(PL)of the air-stable layered titanium trisulfide(TiS3)is *** with iodine particles as a transport agent,TiS3 grown by chemical vapor transport using sulfur powder as a transport agent has fewer sulfur vacancies,which increases the luminescence intensity by an order of *** PL emission wavelength can be regulated in the near-infrared regime by thickness *** addition,we observed an interesting anisotropic strain response of PL in layered TiS3 nanoribbon:a blue shift of PL was achieved when the uniaxial tensile strain was applied along the b-axis,while a negligible shift was observed when the strain was applied along the *** work reveals the tunable nearinfrared luminescent properties of TiS3 nanoribbons,suggesting their potential applications as near-infrared light sources in photonic integrated circuits.

关键词： titanium trisulfide near-infrared luminescence S-vacancy tunability strain engineering

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Recent progress in functional modification and crosslinking of bioprosthetic heart valves

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Regenerative Biomaterials 2024年第1期3卷 1-16页

作者： cheng Zheng Li Yang Yunbing wang National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China

Valvular heart disease(VHD),clinically manifested as stenosis and regurgitation of native heart valve,is one of the most prevalent cardiovascular diseases with high *** valve replacement surgery has been recognized as golden standard for the treatment of *** to the clinical application of transcatheter heart valve replacement technic and the excellent hemodynamic performance of bioprosthetic heart valves(BHVs),implantation of BHVs has been increasing over recent years and gradually became the preferred choice for the treatment of ***,BHVs might fail within 10-15 years due to structural valvular degeneration(SVD),which was greatly associated with drawbacks of glutaraldehyde crosslinked BHVs,including cytotoxicity,calcification,component degradation,mechanical failure,thrombosis and immune *** prolong the service life of BHVs,much effort has been devoted to overcoming the drawbacks of BHVs and reducing the risk of *** this review,we summarized and analyzed the research and progress on:(i)modification strategies based on glutaraldehyde crosslinked BHVs and(ii)nonglutaraldehyde crosslinking strategies for BHVs.

关键词： bioprosthetic heart valves modification crosslinking anticalcification antithrombosis

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Scattering for the Radial Schrodinger Equation with Combined Power-type and Choquard-type Nonlinearities

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Acta Mathematica Sinica,English Series 2024年第4期40卷 1029-1041页

作者： Ying wang cheng Bin XU The Graduate School of China Academy of Engineering Physics Beijing 100088P.R.China School of Mathematics and Statistics Qinghai Normal UniversityXining 810008P.R.China

In this paper,we show the scattering of the radial solution for the nonlinear Schrodinger equation with combined power-type and Choquard-type nonlinearities iut+△u=λ1|u|p1-1u+λ2(Iα*|u|^(p2))|u|p^(2-2)*** the energy space H^(1)(R^(N))forλ_(1)λ_(2)=-*** establish a scattering criterion for radial solution together with Morawetz estimate which implies the scattering *** show that the defocusing perturbation terms does not determine the scattering solution in energy space.

关键词： Schrodinger equation Choquard-type Scattering theory

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Improvement of the Subcooling Problem of Sodium Acetate Trihydrate by a Combination of Stirring or Internal Electric Field and Nucleating Agent

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Journal of Thermal Science 2024年第06期33卷 2235-2244页

作者： wang Chuang wang Suyaola LIU Pengcheng cheng Xingxing wang Zhiqiang School of Energy and Power Engineering Shandong University National Engineering Laboratory for Reducing Emissions from Coal Combustion

Energy storage devices are the hub of a multi-energy complementary distributed energy *** salts are the most suitable phase change material for energy storage devices,but subcooling is the main obstacle to their *** requires a driving force so the use of nucleating agents alone does not reduce subcooling to a very low *** address this issue,this paper first screened nucleating agents and then further reduced the subcooling of sodium acetate trihydrate in conjunction with stirring or direct *** effects of rotor mass,rotational speed,direct current voltage,and electrode material on nucleation were ***,the stability of the composite phase change material in the presence of simultaneous stirring and energization was *** results showed that the addition of 1.5% in weight of disodium hydrogen phosphate dodecahydrate to sodium acetate trihydrate can reduce the subcooling to about 2.3℃.Continued addition of stirring or electricity can reduce the subcooling of sodium acetate trihydrate to within 0.5℃ or even eliminate *** higher the momentum of the stirring,the better the improvement in subcooling,phase separation,and thermal *** higher the direct current voltage,the better the nucleation effect,but the electrode life will be *** silver electrode has the best nucleation *** new material was produced in the solution after 100 cycles in the presence of both stirring and direct *** melting point of the phase change material was increased by 0.2℃ and the latent heat value decreased by 1.8%,still with good *** trace of deionized water should be added to the phase change material in subsequent studies to compensate for the consumption of water by the anodic elution.

关键词： internal electric field phase change material sodium acetate trihydrate stirring subcooling

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Ca^(2+)-independent ZmCPK2 is inhibited by Ca^(2+)-dependent ZmCPK17 during drought response in maize

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Journal of Integrative Plant Biology 2024年第7期66卷 1313-1333页

作者： Xiaoying Hu Jinkui cheng Minmin Lu Tingting fang Yujuan Zhu Zhen Li Xiqing wang Yu wang Yan Guo Shuhua Yang Zhizhong Gong State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China College of Life Sciences Institute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China

Calcium oscillations are induced by different ***-dependent protein kinases(CDPKs/CPKs)are one major group of the plant calcium decoders that are involved in various processes including drought *** CPKs are ***,we identified ZmCPK2 as a negative regulator of drought resistance by screening an overexpression transgenic maize *** found that ZmCPK2 does not bind calcium,and its activity is mainly inhibited during short term abscisic acid(ABA)treatment,and dynamically changed in prolonged ***,ZmCPK2 interacts with and is inhibited by calcium-dependent ZmCPK17,a positive regulator of drought resistance,which is activated by ***17 could prevent the nuclear localization of ZmCPK2 through phosphorylation of ***2 interacts with and phosphorylates and activates ZmYAB15,a negative transcriptional factor for drought *** results suggest that drought stress-induced Ca^(2+)can be decoded directly by ZmCPK17 that inhibits ZmCPK2,thereby promoting plant adaptation to water deficit.

关键词： CDPK drought response phosphorylation stomatal movement transcriptional regulation

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Adenine nucleotide translocase 2(Ant2)is required for individualization of spermatogenesis of Drosophila melanogaster

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Insect Science 2024年第4期31卷 1055-1072页

作者： Zhen He Yang fang Fengchao Zhang Yang Liu Xinkai cheng Jiajia wang Dechen Li Dengsong Chen Fan Wu Industrial Crops Institute Hubei Academy of Agriculture SciencesWuhanChina Institute of Evolution&Marine Biodiversity Ocean University of ChinaQingdaoShandong ProvinceChina

Successful completion of spermatogenesis is crucial for the perpetuation of the *** Drosophila,spermatid individualization,a process involving changes in mitochondrial structure and function is critical to produce functional mature ***2,encoding a mitochondrial adenine nucleotide translocase,is highly expressed in male testes and plays a role in energy metabolism in the ***,its molecular function remains ***,we identified an important role of Ant2 in spermatid *** Ant2 knockdown testes,spermatid individualization complexes composed of F-actin cones exhibited a diffuse distribution,and mature sperms were absent in the seminal vesicle,thus leading to male *** most striking effects in Ant2-knockdown spermatids were decrease in tubulin polyglycylation and disruption of proper mitochondria derivatives *** apoptotic cells were also observed in Ant2-knockdown *** further investigate the phenotype of Ant2 knockdown in testes at the molecular level,complementary transcriptome and proteome analyses were *** the mRNA level,868 differentially expressed genes were identified,of which 229 genes were upregulated and 639 were downregulated induced via Ant2 ***-labeling proteome analysis revealed 350 differentially expressed proteins,of which 117 proteins were upregulated and 233 were *** expression of glutathione transferase(GstD5,GstE5,GstE8,and GstD3),proteins involved in reproduction were significantly regulated at both the mRNA and protein *** results indicate that Ant2 is crucial for spermatid maturation by affecting mitochondrial morphogenesis.

关键词： adenine nucleotide translocase Drosophila melanogaster individualization complexes mitochondria spermatogenesis tubulin polyglycylation

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