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Ammonium Sensing Patch with Ultrawide linear Range and Eliminated Interference for Universal Body Fluids Analysis

Nano-Micro Letters 2025年第4期17卷 332-346页

作者： Mingli huang Xiaohao Ma Zongze Wu Jirong Li Yuqing Shi Teng Yang Jiarun Xu Shuhan Wang Kongpeng Lv Yuanjing lin School of Microelectronics Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Department of Interventional Radiology Shenzhen People’s HospitalShenzhen 518020People’s Republic of China College of Mechanical and Energy Engineering Shaoyang UniversityShaoyang 422000HunanPeople’s Republic of China Shenzhen Hainwise Medical Technology Co. LTDShenzhen 518118People’s Republic of China Shenzhen Institute for Drug Control(Shenzhen Testing Center of Medical Devices) Shenzhen 518000People’s Republic of China Institute of Innovative Materials Guangming Advanced Research InstituteSouthern University of Science and TechnologyShenzhen 518055People’s Republic of China

Ammonium level in body fluids serves as one of the critical biomarkers for healthcare,especially those relative to liver *** continuous and real-time monitoring in both invasive and noninvasive manners is highly desired,while the ammonium concentrations vary largely in different body ***,the sensing reliability based on ion-selective biosensors can be significantly interfered by potassium *** tackle these challenges,a flexible and biocompatible sensing patch for wireless ammonium level sensing was reported with an ultrawide linear range for universal body fluids including blood,tears,saliva,sweat and *** as-prepared biocompatible sensors deliver a reliable sensitivity of 58.7 mV decade-1 in the range of 1-100 mM and a desirable selectivity coefficient of 0.11 in the interference of potassium ions,attributed to the cross-calibration within the sensors *** sensor’s biocompatibility was validated by the cell growth on the sensor surface(>80%),hemolysis rates(linear range and desirable selectivity open up new possibility of highly compatible biomarker analysis via different body fluids in versatile approaches.

关键词： Biocompatible sensors Implantable bioelectronics Ammonium sensing Cross-calibration Ultrawide linear range

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Investigation of mixing performance and safety characteristics of polymer-based energetic materials simulant via screw-pressing blending extrusion charges

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Defence Technology(防务技术) 2025年第2期44卷 287-305页

作者： Gaoming lin Huzeng Zong Suwei Wang huang Chen Siyu Yu Xiaojie Hao Kang Wang Yuanyuan Li Guohui Zhang Shanxi North Xing'an Chemical Industry Co.Ltd. Taiyuan 030008China National Special Superfine Powder Engineering Research Center of China School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China Institute of Shandong Non-metallic Material Jinan 250031China

The present study introduces a screw-pressing charging method to tackle deficiencies in automation and charge uniformity during the melt-casting of polymer-based energetic *** ensure the safety of the experiments,this study used inert materials with similar physical properties to partially substitute for the actual energetic components in the preparation of simulant *** thoroughly analyzing slurry physical properties,a simulation framework and an extensive performance evaluation method were *** tools guide the design of the structure and configuration of process *** demonstrate that employing the Pin element significantly enhances radial mixing within the screw,minimizes temperature variations in the slurry,and improves both efficiency and safety in the mixing ***,adjustments such as widening the cone angle of the barrel,modifying the solid content of the slurry,and varying the speed of the screw can optimize the mechanical and thermal coupling in the flow *** adjustments promote higher-quality slurry and create a safer production environment for the extrusion process.

关键词： Polymer-based energetic materials Screw-pressing charging process Structural design Process safety Mixing performance

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Dietary supplementation with citrus peel extract in transition period improves rumen microbial composition and ameliorates energy metabolism and lactation performance of dairy cows

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Journal of Animal Science and Biotechnology 2025年第1期16卷 441-454页

作者： lingxue Ju qi Shao Zhiyuan Fang Erminio Trevisi Meng Chen Yuxiang Song Wenwen Gao lin Lei Xinwei Li Guowen Liu Xiliang Du State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases Key Laboratory for Zoonosis Research of the Ministry of EducationInstitute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchun 130062China Department of Animal Sciences Food and NutritionFaculty of AgricultureFood and Environmental ScienceUniversitàCattolica del Sacro CuorePiacenza 29122Italy

Background During the transition period,excessive negative energy balance(NEB)lead to metabolic disorders and reduced milk *** microbes are responsible for resolving plant material and producing volatile fatty acids(VFA),which are the primary energy source for *** this study,we aimed to investigate the effect of citrus peel extract(CPE)supplementation on rumen microbiota composition,energy metabolism and milk performance of peri-partum dairy *** Dairy cows were fed either a basal diet(CON group)or the same basal diet supplemented with CPE via intragastric administration(4 g/d,CPE group)for 6 weeks(3 weeks before and 3 weeks after calving;n=15 per group).Samples of serum,milk,rumen fluid,adipose tissue,and liver were collected to assess the effects of CPE on rumen microbiota composition,rumen fermentation parameters,milk performance,and energy metabolic status of dairy *** CPE supplementation led to an increase in milk yield,milk protein and lactose contents,and serum glucose levels,while reduced serum concentrations of non-esterified fatty acid,β-hydroxybutyric acid,insulin,aspartate aminotransferase,alanine aminotransferase,and haptoglobin during the first month of *** supplemen-tation also increased the content of ruminal *** to the CON group,the abundance of Prevotellaceae,Methanobacteriaceae,Bacteroidales_RF16_group,and Selenomonadaceae was found increased,while the abun-dance of Oscillospiraceae,F082,Ruminococcaceae,Christensenellaceae,Muribaculaceae UCG-011,Saccharimona-daceae,Hungateiclostridiaceae,and Spirochaetaceae in the CPE group was found *** adipose tissue,CPE supplementation decreased lipolysis,and inflammatory response,while increased insulin *** the liver,CPE supplementation decreased lipid accumulation,increased insulin sensitivity,and upregulated expression of genes involved in *** Our findings suggest that CPE supplementation during the peripartum period

关键词： Adipose tissue Citrus peel extract Energy metabolism Liver Rumen microbiota

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Unintentional emissions of polychlorinated naphthalenes in China:Sources,composition,and historical trends

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Journal of Environmental Sciences 2025年第2期148卷 221-229页

作者： Ye huang lin huang Ying Li Nazupar Sidikjan Yunshan Zhang Yan Chen Yangmin Chen Ye Li Wei Du Long Chen YanWu Shanshan Zhang Jing Yang Wenjun Meng Guofeng Shen Min Liu Shu Tao Key Laboratory of Geographic Information Science of the Ministry of Education School of Geographic SciencesEast China Normal UniversityShanghai 200241China Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control Faculty of Environmental Science&EngineeringKunming University of Science&TechnologyKunming 650500China Laboratory of Earth Surface Processes College of Urban and Environmental SciencePeking UniversityBeijing 100871China

Polychlorinated naphthalenes(PCNs)are detrimental to human health and the *** the commercial production of PCNs banned,unintentional releases have emerged as a significant environmental ***,relevant information is still *** this study,provincial emissions for eight PCNs homologues from 37 sources in the Chinese mainland during the period of 1960-2019 were estimated based on a source-specific and time-varying emission factor *** results showed that the total PCNs emissions in 2019 reached 757.0 kg with Hebei ranked at the top among all the provinces and iron&steel industry as the biggest ***-chlorinated PCNs comprised 90%of emissions by mass,while highly chlorinated PCNs dominated in terms of toxicity,highlighting divergent priorities for mitigating emissions and safeguarding human *** emissions showed an overall upward trend from 1960 to 2019 driven by emission increase from iron&steel industry in terms of source,and from North China and East China in terms of geographic ***-capita emissions followed an inverted U-shaped environmental Kuznets curvewhile emission intensities decreased with increasing per-capita Gross Domestic Product(GDP)following a nearly linear pattern when log-transformed.

关键词： PCNs Emission inventory Emission factor Composition profile Emission intensity Chinese mainland

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苯甲酸二聚铜配合物与DNA相互作用的电化学研究及应用

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分析试验室 2010年第5期29卷 1-4页

作者：林丽清康杰林启凰黄丽英林新华福建医科大学药学院福州350004

采用电化学法对自行合成的苯甲酸二聚铜配合物[Cu(R)2]与鲑鱼精DNA的相互作用进行了研究。配合物在0.197 V和0.162 V处有一对氧化还原峰。加入双链DNA(dsDNA)后,氧化还原峰电流明显降低且式量电位正移,说明苯甲酸二聚铜配合物与DNA以嵌... 详细信息

采用电化学法对自行合成的苯甲酸二聚铜配合物[Cu(R)2]与鲑鱼精DNA的相互作用进行了研究。配合物在0.197 V和0.162 V处有一对氧化还原峰。加入双链DNA(dsDNA)后,氧化还原峰电流明显降低且式量电位正移,说明苯甲酸二聚铜配合物与DNA以嵌入方式生成一种非电活性超分子复合物,导致苯甲酸二聚铜配合物的峰电流降低,峰电流在一定范围内与鲑鱼精dsDNA质量浓度呈线性关系,线性范围为3.0×10-2~4.5×10-3mg/L,检出限为3.5×10-4mg/L。同时,以[Cu(R)2]作杂交指示剂,把一种新型发夹结构锁核酸探针(LNA)固定在金电极表面制备了电化学生物传感器,将该修饰电极与人工合成的慢性粒细胞白血病BCR/ABL融合基因片段进行杂交,用差示伏安法进行检测,该铜配合物能够较好地区分探针序列、单碱基错配序列和互补链序列。

关键词：发夹结构锁核酸探针电化学传感器苯甲酸二聚铜配合物

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A Highly Sensitive Electrochemical Aptasensor for Kanamycin:Leveraging RecJf Exonuclease-Assisted Target Recycling and Hybridization Chain Reaction Signal Amplification

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Journal of Analysis and Testing 2025年第01期 96-108页

作者： qi Xiao Dongyou Zhang Mingli Yang Shuai Liu Yi Fang Shan huang Guangxi Key Laboratory of Natural Polymer Chemistry and Physics College of Chemistry and MaterialsNanning Normal University

A highly sensitive electrochemical aptasensor was developed for the detection of kanamycin, employing a DNA signal amplification strategy that combines RecJf exonuclease-assisted target recycling with a hybridization chain reaction(HCR).The sensing platform is constructed by covalently immobilizing double-stranded DNA(dsDNA) comprised of a kanamycin-specific aptamer and its thiol-modified complementary strand(SH-CDNA) onto a gold electrode. In the presence of kanamycin and RecJf exonuclease, the aptamer selectively binds to kanamycin, dissociating from the dsDNA complex. The RecJf exonuclease then cleaves the aptamer, releasing kanamycin and initiating a cycle of repetitive binding and *** residual SH-CDNA on the electrode triggers an HCR between two types of ferrocene-labeled hairpin DNA, forming an elongated stable dsDNA nanostructure. This results in an amplified electrochemical signal proportional to the logarithm of kanamycin concentration over a range of 0.01–10 nmol/L, with a remarkable detection limit of 1.8 pmol/L. The aptasensor's performance was validated by analyzing spiked kanamycin in pharmaceutical eye drops and milk samples, yielding recovery rates between 95.6% and 104.8% and relative standard deviations from 1.4% to 4.2%. With its exceptional selectivity and sensitivity, this aptasensor offers a compelling alternative to traditional HPLC for rapid on-site detection of *** on the specificity of aptamers, the sensor design presented herein serves as a valuable blueprint for engineering detectors of other molecules, with significant implications for analytical chemistry and food safety monitoring.

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Multi-User Cooperative Receive Scheme for Air-to-Ground Vortex Wave Communications

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China Communications 2025年第03期 76-85页

作者： Zhang Beibei Chen Ruirui lin Jinyang Li qi Liang Liping Sun Yanjing School of Information and Control Engineering China University of Mining and Technology Jiangsu Automation Research Institute State Key Laboratory of Integrated Services Networks Xidian University

Orbital angular momentum(OAM) can achieve multifold increase of spectrum efficiency, but the hollow divergence characteristic and line-of-Sight(LoS) path requirement impose the crucial challenges for vortex wave communications. For air-to-ground vortex wave communications, where there exists the LoS path, this paper proposes a multi-user cooperative receive(MUCR) scheme to break through the communication distance limitation caused by the characteristic of vortex wave hollow divergence. In particular, we derive the optimal radial position corresponding to the maximum intensity, which is used to adjust the waist radius. Based on the waist radius and energy ring,the cooperative ground users having the minimum angular square difference are selected. Also, the signal compensation scheme is proposed to decompose OAM signals in air-to-ground vortex wave communications. Simulation results are presented to verify the superiority of our proposed MUCR scheme.

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New Taub-NUT black holes with massive spin-2 hair

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 51-58页

作者： Yu-qi Chen Hai-Shan Liu Center for Joint Quantum Studies and Department of Physics School of ScienceTianjin UniversityTianjin 300350China

We consider Einstein gravity extended with quadratic curvature invariants,within which the well-known Ricci-flat Taub-NUT black hole remains a *** analysis of the unstable Lichnerowicz modes in the Taub-NUT background enables us to identify the mass and NUT parameters(m,n)where new Taub-NUT black holes can *** then adopt numerical techniques to construct these new Taub-NUT black holes,which bifurcate away from the Ricci-flat *** the Ricci-flat Taub-NUT,there can exist two new black holes for an appropriate given temperature,making it a total of three if we include the Ricci-flat one.

关键词： higher derivative gravity black hole solution Taub-NUT spacetime

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Dual roles ofα1,4-galactosyltransferase 1 in spermatogenesis of Drosophila melanogaster

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Insect Science 2025年第1期32卷 127-139页

作者： Yanhong Xiao Bo huang Sibo Chen Zhikai lin Zhiying Zhu Yuzhen Lu Xiao-qiang Yu Liang Wen qihao Hu Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology Guangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina School of Life Sciences Hubei Key Laboratory of Genetic Regulation and Integrative BiologyCentral China Normal UniversityWuhanChina

Spermatogenesis is critical for insect reproduction and the process is regulated by multiple *** have been shown to participate in the development of Drosophila melanogaster;however,their role in spermatogenesis is still *** this study,we found thatα1,4-galactosyltransferase 1(α4GT1)was expressed at a significantly higher level in the testis than in the ovary of ***,the hatching rate was significantly decreased whenα4GT1 RNA interference(RNAi)males were crossed with w1118 females,with only a few mature sperm being present in the seminal vesicle ofα4GT1 RNAi *** staining further revealed that the individualization complex(IC)in the testes fromα4GT1 RNAi flies was scattered and did not move synchronically,compared with the clustered IC observed in the control *** deoxyribonucleotide transferase(TdT)-mediated dUTP nick end labeling(TUNEL)assay showed that apoptosis signals in the sperm bundles ofα4GT1 RNAi flies were significantly ***,the expression of several individualization-related genes,such as Shrub,Obp44a and Hanabi,was significantly decreased,whereas the expression of several apoptosis-related genes,including Dronc and Drice,was significantly increased in the testes ofα4GT1 RNAi ***,these results suggest thatα4GT1 may play dual roles in Drosophila spermatogenesis by regulating the sperm individualization process and maintaining the survival of sperm bundles.

关键词： apoptosis α4GT1 galactosyltransferase individualization spermatogenesis

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Electromagnetic wave absorption and corrosion resistance performance of carbon nanoclusters/Ce-Mn codoped barium ferrite composite materials

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 699-709页

作者： Bo Li lin Ma Sinan Li Jiewu Cui Xiaohui Liang Wei Sun Pengjie Zhang Nan huang Song Ma Zhidong Zhang Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China School of Metallurgy Engineering Liaoning Institute of Science and TechnologyBenxi 117004China School of Materials Science and Engineering Hefei University of TechnologyHefei 230009China Institute of Microelectronics Hangzhou Dianzi UniversityHangzhou 310018China BGRIMM Magnetic Materials&Technology Co. Ltd.Beijing 100160China

To realize the application of electromagnetic wave absorption(EWA)devices in humid marine environments,bifunctional EWA materials with better EWA capacities and anticorrosion properties have great exploration significance and systematic research *** utilizing the low-cost and excellent magnetic and stable chemical characteristics of barium ferrite(BaFe_(12)O_(19))and using the high dielectric loss and excellent chemical inertia of nanocarbon clusters,a new type of nanocomposites with carbon nanoclusters en-capsulating BaFe_(12)O_(19)was designed and synthesized by combining an impregnation method and a high-temperature calcination ***,Ce-Mn ions were introduced into the BaFe_(12)O_(19)lattice to improve the dielectric and magnetic properties of BaFe_(12)O_(19)cores significantly,and the energy band structure of the doped lattice and the orders of Ce replacing Fe sites were *** from Ce-Mn ion doping and carbon nanocluster encapsulation,the composite material exhibited excellent dual functionality of corrosion resist-ance and *** BaCe_(0.2)Mn_(0.3)Fe_(11.5)O_(19)-C(BCM-C)was calcined at 600°C,the minimum reflection loss of-20.1 dB was achieved at 14.43 *** Ku band’s effective absorption bandwidth of 4.25 GHz was achieved at an absorber thickness of only 1.3 *** BCM-C/polydimethylsiloxane coating had excellent corrosion resistance in the simulated marine environment(3.5wt%NaCl solution).The|Z|0.01Hz value of BCM-C remained at 106Ω·cm^(2)after 12 soaking *** successful preparation of the BaFe_(12)O_(19)composite en-capsulated with carbon nanoclusters provides new insights into the preparation of multifunctional absorbent materials and the fabrication of absorbent devices applied in humid marine environments in the future.

关键词： electromagnetic wave absorption anticorrosion barium ferrite cerium and manganese doping carbon nanoclusters

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