ChemNanoMat最新文献_第5页

Polyoxometalate-Based Nanozyme with Oxidase-Mimic Activity for Point-of-Care Perfluorooctane Sulfonate Detection with Colorimetry 基于氧化酶模拟活性的多金属氧酸盐纳米酶用于比色法检测全氟辛烷磺酸

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-09 DOI: 10.1002/cnma.202500164

Huanjun Zhao, Wanyi Xue, Linshan Wang, Liping Zhang, Xinxin Xu

{"title":"Polyoxometalate-Based Nanozyme with Oxidase-Mimic Activity for Point-of-Care Perfluorooctane Sulfonate Detection with Colorimetry","authors":"Huanjun Zhao, Wanyi Xue, Linshan Wang, Liping Zhang, Xinxin Xu","doi":"10.1002/cnma.202500164","DOIUrl":"10.1002/cnma.202500164","url":null,"abstract":"Perfluorooctane sulfonate (PFOS) is a burgeoning organic pollutant, which has attracted increasing concern. Due to its high toxicity, bioaccumulation, and damage to physiological systems, an efficient PFOS detection method is required. This study develops a new point-of-care PFOS detection method based on nanozymes and smart mobile phone. Notably, [(CH3)2NH2]V3O7, a polyoxometalate (POM) nanozyme is synthesized, which shows remarkable oxidase-mimic activity with Km 0.105 mM and Vmax 3.84 × 10−8 M s−1. Mechanism study confirms ·OH and ·O2− contribute greatly in oxidase-mimic process. Density function theory (DFT) calculation illustrates the excellent oxidase-mimic activity originates the intensive adsorption toward O2. POM nanozyme can prompt the oxidation of colorless 3,3′,5,5′-tetramethylbenzidine (TMB) and generates blue ox-TMB. The color of blue ox-TMB can be faded by PFOS. Based on this, a visible colorimetry is developed for PFOS detection with low limit of detection (LOD) 0.46 μM. When employed for PFOS detection in tap water, river water, and lake water, this colorimetry receives favorable results. The work not only opens a new platform for POM nanozymes but also develops an efficient technique for PFOS detection in real water samples.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101328","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

Synergistic Effect of Porous Layered Lanthanum Hydroxide for Efficient Br− Adsorption 多孔层状氢氧化镧高效吸附Br−的协同效应

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-04 DOI: 10.1002/cnma.202500152

Zhixin Gao, Meng Yan, Zhen Sun, Teng Wang, Yaoming Zhang, Sen Lin, Yong Yang

{"title":"Synergistic Effect of Porous Layered Lanthanum Hydroxide for Efficient Br− Adsorption","authors":"Zhixin Gao, Meng Yan, Zhen Sun, Teng Wang, Yaoming Zhang, Sen Lin, Yong Yang","doi":"10.1002/cnma.202500152","DOIUrl":"10.1002/cnma.202500152","url":null,"abstract":"Porous layered hydroxides has garnered significant attention for ion adsorption applications due to their unique combination of layered and porous structures. Herein, porous layered lanthanum hydroxide nanowires (NWs) is synthesized to efficiently adsorb Br−, utilizing the modulation of interlayer ions to optimize their performance. These NWs exhibit a porous surface structure and a positively charged surface, which increases the number of active sites and enhances their affinity for Br−. The layered hydroxide lanthanum acetate (LHL-acetate) NWs possess an adsorption capacity of 221 mg g−1, a wide range of pH suitability (from 3.0 to 10.0) and remarkable stability, surpassing many previously reported adsorbents. The superior Br− adsorption performance of LHL-acetate NWs can be attributed to the synergistic effect between ion-exchange properties of interlayer anions and surface adsorption facilitated by the porous structure, which strengthens electrostatic interactions at the adsorbent-solution interface. Impressively, these NWs achieved 100% Br− removal from simulated wastewater with varying initial concentrations and flow rates in a fixed-bed adsorption system, highlighting the effectiveness of LHL-acetate NWs for advanced Br− removal in practical applications. This study reveals the structure-reactivity relationship of porous layered lanthanum hydroxide adsorbents and offers insights for the application of such materials in the adsorption domain.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598183","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 Trends in Perovskite Quantum Dots-Based S-Scheme Photocatalysis for CO2 Photoreduction 基于钙钛矿量子点的s-方案光催化CO2光还原研究进展

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-04 DOI: 10.1002/cnma.202500016

Vatika Soni, Parul Rana, Rubeena Chauhan, Pardeep Singh, Archana Singh, Vishal Chaudhary, Aftab Aslam Parwaz Khan, Pankaj Raizada

{"title":"Recent Trends in Perovskite Quantum Dots-Based S-Scheme Photocatalysis for CO2 Photoreduction","authors":"Vatika Soni, Parul Rana, Rubeena Chauhan, Pardeep Singh, Archana Singh, Vishal Chaudhary, Aftab Aslam Parwaz Khan, Pankaj Raizada","doi":"10.1002/cnma.202500016","DOIUrl":"10.1002/cnma.202500016","url":null,"abstract":"Perovskite quantum dots (PQDs)-based S-scheme heterojunctions are evolving as a cutting-edge approach for driving effective CO2 photoreduction, providing a sustainable way for addressing global energy needs as well as environmental challenges. This review paper delves into the progressions in PQD-based S-scheme heterojunctions, highlighting their exclusive synthesis methods, characterization techniques, photocatalytic mechanisms, catalytic efficiency, as well as potential applications. The S-scheme junctions not only improve the spatial isolation of photogenerated charge carriers but also reserve high oxidation/reduction potentials, enabling efficient CO2 photoreduction into value-added CO and CH4 products. Herein, the roles of lead-based and lead-free PQDs heterojunctions are classified, focusing on their synergistic integration with other catalytic materials, amended CO2 adsorption, and higher stability under photocatalytic environments. Various challenges, long-term durability, as well as scalability are also highlighted alongside future perspectives for enhancing structural design and exploring novel compositions. By scientifically bridging the gap between lead-based efficacy and lead-free sustainability, this paper highlights the transformative potential of PQDs-based S-scheme heterojunctions. These materials pave the pathway for advanced photoactive catalysts capable of addressing serious energy as well as environmental issues, fostering novelty in CO2 reduction processes.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256393","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

Fabrication of Zn-MoO3-x Nanocrystals with Enhanced Plasmon Resonance for Biosensing Application 用于生物传感的增强等离子体共振Zn-MoO3-x纳米晶体的制备

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-02 DOI: 10.1002/cnma.202500009

Xuzhe Wang, Yongqi Wu, Xiaohong Chen, Dewei Liu, Huawei Zhang, Chengzhou Zhao, Mingyuan Li

引用次数: 0

New Biocompatible Cobalt-Containing Nanocomposite as a Complex Immunomodulator with a Synergistic Effect 新型生物相容性含钴纳米复合材料作为具有协同效应的复杂免疫调节剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-01 DOI: 10.1002/cnma.202500060

Marina V. Zvereva, Galina P. Aleksandrova, Valentina I. Dubrovina

{"title":"New Biocompatible Cobalt-Containing Nanocomposite as a Complex Immunomodulator with a Synergistic Effect","authors":"Marina V. Zvereva, Galina P. Aleksandrova, Valentina I. Dubrovina","doi":"10.1002/cnma.202500060","DOIUrl":"10.1002/cnma.202500060","url":null,"abstract":"Use of nanomaterials (in particular cobalt oxide nanoparticles) as adjuvants is promising because of their ultralow dimension and pronounced immunomodulatory effects. Herein, arabinogalactan-stabilized cobalt oxide nanoparticles (AG-CoONPs) are synthesized for the first time. Using a complex of spectral (DLS, IR, and optical spectroscopy), X-ray, and microscopic (transmission electron microscopy) methods, their two-phase amorphous–crystalline structure is characterized. The size of obtained AG-CoONPs ranges between 4 and 29 nm. Using animal models (mice), a pronounced stimulating effect of the obtained AG-CoONPs is found, with an average size of 6.5 nm, on the production of B-lymphocytes with the absence of stimulation of lymphocytic cell apoptosis. It is found that introduction of AG-CoONPs to experimental animals is accompanied by the retention of the volume ratio of the cortical and brain substances of the thymus (the central organ of immunopoiesis) with the increase of the number of blast cells in its cortical zone, the growth of macrophages and epithelial cells in its brain substance, and the increase of its vascular channel and connective tissue volume. The obtained data demonstrate the prospects for the design of adjuvants based on AG-CoONPs that enhance the immune response to antigen introduction, including the stimulation of specific antibodies’ production.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598171","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

Unveiling the Role of Molecular Structure in Microscopic Thermodynamics: Insights from Probing Trapped Nanoparticles with Femtosecond Optical Tweezers 揭示分子结构在微观热力学中的作用：用飞秒光镊探测捕获纳米粒子的见解

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-31 DOI: 10.1002/cnma.202500033

Ajitesh Singh, Dipankar Mondal, Krishna Kant Singh, Deepak Kumar, Debabrata Goswami

引用次数: 0

Effect of Different Electrolytes on Supercapacitive Performance of Activated Charcoal/Nafion Doped by Mxene Hybrid Electrode 不同电解质对Mxene掺杂活性炭/钠离子超电容性能的影响

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-30 DOI: 10.1002/cnma.202500087

Savita S. Mane, Girish M. Joshi

{"title":"Effect of Different Electrolytes on Supercapacitive Performance of Activated Charcoal/Nafion Doped by Mxene Hybrid Electrode","authors":"Savita S. Mane, Girish M. Joshi","doi":"10.1002/cnma.202500087","DOIUrl":"10.1002/cnma.202500087","url":null,"abstract":"Herein, activated charcoal/Nafion Mxene composite is demonstrated as an active material for supercapacitors; modified structural amorphous phase to semicrystalline, which is observed by X-ray diffraction. Newly induced OH (3397 cm−1) and CH (2123 cm−1) bonding are confirmed by Fourier transform infrared spectroscopy. Raman spectroscopy reveals presence of G and D bands. Microporosity is forseen by electron microscopy technique. Brunauer–Emmett–Teller analysis discloses a decrease in surface area (1017.5 to 686.95 m1 g−1) due to Mxene loading. Electrochemical conductivity and capacitance performance are tested as a function of aqueous electrolytes (H2SO4, Na2SO4, KCl-FeCN6, and KOH). Electrochemical performance is mainly dependent on the electrolyte medium. The desirable H2SO4 electrolyte confirms it, and exhibits higher capacitance and conductivity, with lower voltage drop. It is further confirmed by linear fitting (V2/1 vs i/ V1/1). It is displayed for capacitance and diffusion contribution mapped by Dunn's model. Electrode with a 10 wt% of Mxene demonstrated the higher capacitance of 429 F g−1 in H2SO4 electrolyte with a current density of 0.6 A g−1. This electrode demonstrated a capacitance retention of 93% over 500 cycles may be enable to deploy for the device application.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 6","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255868","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

Waste to Wealth: Sustainable Synthesis of Green Tea-Derived Quantum Dots for Nanomolar Detection of Fe3+ Ions and Ascorbic Acid 废物转化为财富：可持续合成绿茶衍生量子点用于铁离子和抗坏血酸的纳米摩尔检测

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-29 DOI: 10.1002/cnma.202500140

Mandeep Kaur, Pahul P. K. Sandhu, Mallika Phull, Banibrata Maity

{"title":"Waste to Wealth: Sustainable Synthesis of Green Tea-Derived Quantum Dots for Nanomolar Detection of Fe3+ Ions and Ascorbic Acid","authors":"Mandeep Kaur, Pahul P. K. Sandhu, Mallika Phull, Banibrata Maity","doi":"10.1002/cnma.202500140","DOIUrl":"10.1002/cnma.202500140","url":null,"abstract":"Highly fluorescent carbon quantum dots are synthesized from green tea leaves via microwave pyrolysis and abbreviated as G-CQDs. This eco-friendly method utilizes a renewable, low-cost, and easily accessible carbon source, with water as the solvent, aligning with green and sustainable synthesis. High-resolution transmission electron microscopy analysis reveals an average particle size of ≈2 nm. The nitrogen content in green tea leaves facilitates surface functionalization of G-CQDs, confirmed by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy techniques. The G-CQDs exhibit excitation wavelength-dependent behavior and a high photoluminescence quantum yield of ≈45%, eliminating the need for surface passivation. The G-CQDs show excellent photostability and environmental stability when tested under varying pH, irradiation time, and ionic strength. Additionally, they demonstrate high selectivity and sensitivity for detecting Fe3+ ions with a detection limit of 2 nM through fluorescence quenching. The fluorescence is restored in the presence of ascorbic acid (AA) due to a redox reaction with Fe3+ ions, with a detection limit of 13 nM. This dual-sensing capability makes G-CQDs a promising nanoprobe for rapid and on-site detection of Fe3+ ions and AA.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905447","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 5/2025) 封面：（ChemNanoMat 5/2025）

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-28 DOI: 10.1002/cnma.202580501

引用次数: 0

High-Performance Ammonia Sensing with Citrus Hystrix-Mediated ZnO Nanoparticles in TFT-Based Devices 柑橘hystrix介导的ZnO纳米颗粒在tft基器件中的高性能氨传感

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-05-27 DOI: 10.1002/cnma.202500211

引用次数: 0