ChemNanoMat最新文献_第7页

Synthesis of Composites of DNA and Boron Cluster-Metal Complexes and their Assembly into Functional Nanoparticles with Gene Silencing Activity DNA与硼簇金属配合物复合材料的合成及其组装成具有基因沉默活性的功能纳米颗粒

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-24 DOI: 10.1002/cnma.202400606

Krzysztof Śmiałkowski, Katarzyna Bednarska-Szczepaniak, Katarzyna Kulik, Justyna Suwara, Bohumir Grűner, Aleksander Foryś, Barbara Nawrot, Zbigniew J. Leśnikowski

引用次数: 0

Innovative Synthesis and Characterization of Nano Hydroxyapatite: A Potential Adsorbent for Methyl Violet 6B Removal from Aqueous Solutions 纳米羟基磷灰石的创新合成和表征：一种去除甲基紫6B的潜在吸附剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-23 DOI: 10.1002/cnma.202400582

Mustafa Burak Telli, Tugkan Kutlu, Seda Karayünlü Bozbaş, Aybuke Şirin, Tuba Ünügül

{"title":"Innovative Synthesis and Characterization of Nano Hydroxyapatite: A Potential Adsorbent for Methyl Violet 6B Removal from Aqueous Solutions","authors":"Mustafa Burak Telli, Tugkan Kutlu, Seda Karayünlü Bozbaş, Aybuke Şirin, Tuba Ünügül","doi":"10.1002/cnma.202400582","DOIUrl":"https://doi.org/10.1002/cnma.202400582","url":null,"abstract":"In this study, the use of nano Hydroxyapatite (HAp) adsorbent as an adsorbent for the removal of methyl violet 6B (MV 6B) dye from aqueous solution was investigated. Nano adsorbent characterization was carried out by X-Ray Diffractometer (XRD), scanning electron microscopy (SEM), spot energy dispersive spectroscopy (EDS) analyses. The dye removal study was carried out using the classical batch adsorption process. In addition, isotherm, kinetic and thermodynamic adsorption studies were carried out for methyl violet 6B. In adsorption studies, the effects of initial dye concentration (10–40 mg/L), solution pH (2-8), adsorbent dosage (0.5–2.5 mg) and contact time (15–90 min.) on dye removal were investigated. At dye concentration was 10 mg/L, adsorbent dosage was 1 mg, solution pH was 6, contact time was 30 min and ambient temperature 25 °C, the highest MV 6B removal was 95.86 % and 1200 mg/g adsorption capacity was obtained. As a result of adsorption isotherm and kinetic studies, it was observed that the adsorption values obtained from the models were compatible with Langmuir isotherm model and pseudo-second order kinetic model. According to the thermodynamic data obtained, it was determined that the adsorption process was spontaneous and exothermic.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202400582","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Rise of Zinc||Chalcogen Batteries with Conversion Mechanism 具有转换机理的锌||型锂电池的兴起

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-20 DOI: 10.1002/cnma.202400631

Zecong Zeng, Bingjie Ran, Mangwei Cui, Fusheng Liu, Yan Huang

引用次数: 0

Synthesis and Characterization of NiWS2/MWCNT Nanohybrids NiWS2/MWCNT纳米杂化材料的合成与表征

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-20 DOI: 10.1002/cnma.202400356

J. Olivo-Toledo, E. M. Rivera-Muñoz, M. P. Alonso, G. Alonso-Nuñez, R. Huirache-Acuña

{"title":"Synthesis and Characterization of NiWS2/MWCNT Nanohybrids","authors":"J. Olivo-Toledo, E. M. Rivera-Muñoz, M. P. Alonso, G. Alonso-Nuñez, R. Huirache-Acuña","doi":"10.1002/cnma.202400356","DOIUrl":"https://doi.org/10.1002/cnma.202400356","url":null,"abstract":"The present research work mainly focuses on the synthesis and characterization of NiWS2/MWCNT-f nanohybrids. Multi-walled carbon nanotubes MWCNT-r were previously purified with HCl to obtain MWCNT-p, then were treated with an acid mixture of HNO3 : H2SO4 (6 M) at 1 : 3 v/v to generate functionalization on the surface with oxygen as hydroxylic and carbonyl groups to obtain MWCNT-f. The synthesis of the nanohybrids was carried out by the sequential incipient impregnation method using ammonium thiotungstate (ATT) and nickel chloride as metal precursors. The effect of nickel was evaluated by modifying its atomic ratio with respect to tungsten with values of R= (Ni/Ni+W) equal to 0.3 and 0.5. Subsequently, the nanohybrids were obtained by thermal decomposition in argon atmosphere and an activation method using H2/H2S. Once the nanohybrids were obtained, their structural properties were characterized by Raman spectroscopy, BET, HRTEM, XRD, and TGA analyses. The formation of the nanohybrids was achieved obtaining the active phase WS2 and NiWS supported on MWCNT-f, which was corroborated by HRTEM and XPS spectroscopy techniques. These materials are important candidates as catalysts in the hydrodesulfurization reactions.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202400356","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Stability of Pt-Co Catalysts Supported on Zeolite Nanosponges for Propane Dehydrogenation 沸石纳米海绵负载Pt-Co催化剂丙烷脱氢稳定性的提高

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-20 DOI: 10.1002/cnma.202400527

Dr. Muhammad Numan, Nam Sun Kim, Prof. Changbum Jo

{"title":"Enhanced Stability of Pt-Co Catalysts Supported on Zeolite Nanosponges for Propane Dehydrogenation","authors":"Dr. Muhammad Numan, Nam Sun Kim, Prof. Changbum Jo","doi":"10.1002/cnma.202400527","DOIUrl":"https://doi.org/10.1002/cnma.202400527","url":null,"abstract":"Pt and Co supported on Al2O3, Na+-free SiO2, mesoporous zeolite (MZ-Na+), and Na+-free MZ (MZ-OH) were prepared and investigated for propane dehydrogenation efficacy. These catalysts were characterized using XRD, STEM, CO-FTIR, H2-TPR, and XPS. Of these catalysts, Pt−Co supported on MZ-Na+ and Al2O3 showed low activity and poor stability for propane dehydrogenation (PDH). On the other hand, Pt−Co supported on Na+-free SiO2 or MZ-OH exhibited much greater activity and stability. This high catalytic performance was attributed to the formation of a high degree of alloying between Pt and Co, possibly facilitated by silanol groups. After optimizing cobalt content and catalyst reduction temperature, it was found that 1 wt% Pt-0.8 wt% Co supported on MZ-OH exhibited the best activity with a propane conversion of 64.4 % and propylene selectivity of 76.5 % that remained stable over 24 h on-stream. The correlation between catalyst characterization and PDH results showed that the existence of metallic cobalt on the catalyst surface facilitated coke deposition in the form of CoCx and poor catalyst stability.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of Uniform Electrospun 2-Cyanopyridinium Salicylate – Polyvinyl Alcohol Nanofibersusing Cylindrical Bar Collector for Nonlinear Optical Applications 非线性光学用圆柱形棒集热器制备均匀电纺2-水杨酸氰吡啶-聚乙烯醇纳米纤维

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-20 DOI: 10.1002/cnma.202400590

Kintali Manohor Prasad, S. Divagar, P. Srinivasan

{"title":"Production of Uniform Electrospun 2-Cyanopyridinium Salicylate – Polyvinyl Alcohol Nanofibersusing Cylindrical Bar Collector for Nonlinear Optical Applications","authors":"Kintali Manohor Prasad, S. Divagar, P. Srinivasan","doi":"10.1002/cnma.202400590","DOIUrl":"https://doi.org/10.1002/cnma.202400590","url":null,"abstract":"The electrospinning technique was used to synthesize nanofibers of organic 2-cynopyridinium salicylate (2-CPSC) molecules embedded in polyvinyl alcohol (PVA) polymer using both a drum collector and an indigenously made parallel bar cylindrical collector unit. The microscopical analysis was performed for the preliminary morphological study of the collected nanofibers using both a drum collector and a parallel bar collector. Scanning electron microscopic (SEM) analysis confirmed the formation of smooth, clear, cylindrical shape, and highly homogenous 2-CPSC – PVA nanofibers collected from the parallel bar collector unit compared to the drum collector, and these homogenous nanofibers were selected for further characterization. X-ray diffraction (XRD) study demonstrates the preferred crystallographic orientation of organic 2-CPSC molecules inside the host PVA polymer. The synthesized nanofibers were characterized using Fourier Transform Infrared (FTIR) Spectroscopy to confirm the presence of different molecular vibrations. Using ultraviolet-visible (UV-Vis) spectroscopic analysis, the complete transparency of the 2-CPSC – PVA nanofiber throughout the visible region is observed, and from Tauc's plot, the obtained optical band gap energy (Eg) is 5.24 eV. The Z-scan technique was employed to investigate the nonlinear absorption coefficient (β), nonlinear refractive index (n2), and third-order nonlinear susceptibility (<math></math>\u0000).","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glycyrrhetinic Acid Prohibiting Fusion Peptides from Fusing with Cell Membrane 甘草次酸阻止融合肽与细胞膜融合

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-14 DOI: 10.1002/cnma.202400614

Zili Jia, Rongrong Wu, Yun Hao, Xiaolu Song, Shuai Hou, Changwei Shi, Yihao Cui, Lei Liu, Taofeng Zhu

{"title":"Glycyrrhetinic Acid Prohibiting Fusion Peptides from Fusing with Cell Membrane","authors":"Zili Jia, Rongrong Wu, Yun Hao, Xiaolu Song, Shuai Hou, Changwei Shi, Yihao Cui, Lei Liu, Taofeng Zhu","doi":"10.1002/cnma.202400614","DOIUrl":"https://doi.org/10.1002/cnma.202400614","url":null,"abstract":"The inhibition of the fusion peptide (FP) of the spike protein of coronaviruses, which mediates interactions with the host cell membrane, plays a critical role in the membrane fusion process. In this study, we investigated the interactions between the FP and cell membranes and evaluated the effect of three drug molecules — neferine (Nef), glycyrrhetinic acid (GA), quercetin (Qct) on the membrane fusion process by combining molecular dynamics (MD) simulations and experimental methods. Our findings revealed that glycyrrhetinic acid exhibited strong binding ability towards the FP (residues 815–828), with particularly interactions observed with key residues L821, L822, F823, and L828. Furthermore, we performed FITC fluorescence staining experiments on cells and assessed the inhibitory effects of glycyrrhetinic acid on FP. The results showed a significant reduction in fluorescence intensity in the FP-FITC experiment group treated with glycyrrhetinic acid, indicating that glycyrrhetinic acid interferes with the binding ability of FP and disrupts its localization on the cell membrane. Overall, this research will contribute to a deeper understanding of the inhibition mechanism of FP's membrane fusion process, which widely exists in the intrusion process between viruses and cells.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: (ChemNanoMat 1/2025) 封面：（ChemNanoMat 1/2025）

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-10 DOI: 10.1002/cnma.202580101

引用次数: 0

Pt(II) Complex-Based Supramolecular Polymers with Fe(II) Ion 基于Pt（II）配合物的Fe（II）离子超分子聚合物

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-01-10 DOI: 10.1002/cnma.202400533

Junseo Kim, Minhye Kim, Dr. Heekyoung Choi, Prof. Dr. Jong Hwa Jung

{"title":"Pt(II) Complex-Based Supramolecular Polymers with Fe(II) Ion","authors":"Junseo Kim, Minhye Kim, Dr. Heekyoung Choi, Prof. Dr. Jong Hwa Jung","doi":"10.1002/cnma.202400533","DOIUrl":"https://doi.org/10.1002/cnma.202400533","url":null,"abstract":"In recent years, there has been significant interest in supramolecular architectures such as helical fibers, tubules, and nanotoroids (nanorings) due to their unique physical properties. In this study, we synthesized bis[terpyridine-based Pt(II)] complexes with an unoccupied terpyridine moiety on the opposite side. Interestingly, the mononuclear terpyridine-based Pt(II) complexes (Pt-L1 and Pt-L2) form helical supramolecular polymers. These supramolecular polymers, exhibited intense photoluminescence at 570–620 nm, corresponding to metal-to-ligand charge transfer (MLCT) and/or metal-metal ligand charge transfer (MMLCT). Conversely, the supramolecular polymers formed in the presence of Fe2+ ions were non-emissive. The metallosupramolecular polymers formed in the absence and presence of Fe2+ ions were generated by π-π and intermolecular hydrogen bonding interactions and/or Pt⋅⋅⋅Pt interactions. The supramolecular polymers were formed through a cooperative pathway involving a nucleation-elongation mechanism. The nonsigmoidal transition of the absorbance change could be fitted by using the equilibrium (EQ) model, from which the thermodynamic parameters (ΔGe, ΔHe, and ΔS) were determined. At 4 mM, the Gibbs′ free energy (ΔGe) of the supramolecular polymers of Pt-L1 and Pt-L2 without metal ions was calculated to be −18.9 and −17.4 kJ/mol, respectively.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advancements in Metal-Organic Frameworks-Derived Metal Phosphides as Anode for Lithium-Ion Batteries 金属有机骨架衍生金属磷化物作为锂离子电池负极的研究进展

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-12-24 DOI: 10.1002/cnma.202400504

Junjie Yang, Jun Li, Chenxuan Xu, Binbin Wen, Linjun Si, Weifeng Shen, Zhenqiu Feng, Wanxin Mai, Xiaoming Lin, Yongbo Wu, Huachao Yang

{"title":"Recent Advancements in Metal-Organic Frameworks-Derived Metal Phosphides as Anode for Lithium-Ion Batteries","authors":"Junjie Yang, Jun Li, Chenxuan Xu, Binbin Wen, Linjun Si, Weifeng Shen, Zhenqiu Feng, Wanxin Mai, Xiaoming Lin, Yongbo Wu, Huachao Yang","doi":"10.1002/cnma.202400504","DOIUrl":"https://doi.org/10.1002/cnma.202400504","url":null,"abstract":"Transition metal phosphides (TMPs) are considered as a promising anode material for LIBs due to their potential high theoretical capacity, suitable lithiation potential and low polarization, but low conductivity and severe volume expansion limit the performance of TMPs. Since metal-organic framework (MOFs)-derived materials can inherit the advantages of MOFs, MOFs-derived metal phosphides have been widely used as anodes for LIBs and exhibit outstanding electrochemical performance. The MOFs derivatization strategy can be used to achieve the adjustment and optimization of the components and structure of metal phosphide composites, such as constructing rich heterojunction structure or designing stable carbon skeleton structure. These modifications effectively improve the electronic structure and structural stability of metal-phosphide composites, thus solving the current problems of TMPs. In conclusion, this paper systematically summarizes the basic strategies for the modification and preparation of TMPs applied to the field of energy conversion and energy storage from the phosphorus source used in the preparation of TMPs, and finally compares the preparation methods, modification and lithium storage properties of monometallic/bimetallic phosphides derived from MOFs, and looks ahead to the characteristics and possible future development of the metal phosphides obtained by derivatization of MOFs as precursor.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0