ChemNanoMat最新文献_第2页

Recent Advancements in Ion Doping Strategies for Manganese Dioxide-Based Cathodes in Aqueous Zinc-Ion Batteries 锌离子电池中二氧化锰基阴极离子掺杂策略的研究进展

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-04-04 DOI: 10.1002/cnma.70241

Junjie Yang, Chenxuan Xu, Liqing Qiu, Jinsheng Zou, Weifeng Shen, Linjun Si, Yuxuan Liu, Akif Zeb, Yongbo Wu, Xiaoming Lin

{"title":"Recent Advancements in Ion Doping Strategies for Manganese Dioxide-Based Cathodes in Aqueous Zinc-Ion Batteries","authors":"Junjie Yang, Chenxuan Xu, Liqing Qiu, Jinsheng Zou, Weifeng Shen, Linjun Si, Yuxuan Liu, Akif Zeb, Yongbo Wu, Xiaoming Lin","doi":"10.1002/cnma.70241","DOIUrl":"10.1002/cnma.70241","url":null,"abstract":"Due to its low cost and high electrochemical window, manganese dioxide (MnO2) is a promising cathode material for rechargeable aqueous zinc-ion batteries (AZIBs). However, the MnO2 cathode suffers from crystal structure distortion and active material loss induced by the Jahn–Teller effect, as well as sluggish kinetics resulting from low intrinsic conductivity. To address these issues, researchers propose ion-doping strategies to regulate the intrinsic properties of MnO2. This article reviews recent advancements in ion-doping strategies, categorized into metal ion doping, nonmetal ion doping, and multi-ion co-doping. Critically, this review differentiates between lattice substitution and interstitial occupancy and systematically analyzes the quantitative correlation between doping concentration and electrochemical performance, providing a roadmap for optimizing dopant efficacy. Finally, the review provides an outlook on current challenges and future research directions for developing high-performance MnO2 cathodes.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668189","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

Advances in Flexible Non-Enzymatic Two-Dimensional Material-Based Electrochemical Biosensors for Glucose Detection 基于柔性非酶二维材料的葡萄糖检测电化学生物传感器研究进展

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-31 DOI: 10.1002/cnma.202500765

Thangapandi Kalyani, Rashmi Roy Karmakar, Kulsuma Begum, Roshni Wahge, Kazuyoshi Tsuchiya, Jyoti Jaiswal, Sanjeev Kumar

{"title":"Advances in Flexible Non-Enzymatic Two-Dimensional Material-Based Electrochemical Biosensors for Glucose Detection","authors":"Thangapandi Kalyani, Rashmi Roy Karmakar, Kulsuma Begum, Roshni Wahge, Kazuyoshi Tsuchiya, Jyoti Jaiswal, Sanjeev Kumar","doi":"10.1002/cnma.202500765","DOIUrl":"10.1002/cnma.202500765","url":null,"abstract":"Long-term monitoring of blood glucose is of great significance for diabetes management and the construction of highly sensitive biosensors. Two-dimensional (2D) nanomaterials such as graphene, transition metal dichalcogenides (TMDs), and MXenes are an excellent choice for non-enzymatic glucose sensors due to the high surface area, tailored chemistry, and remarkable electronic properties. This review aims to encompass works by taking examples of flexible non-enzymatic 2D material-based glucose sensors in terms of design and sensing mechanisms, as well as performance investigations and integration into wearable devices. Non-enzymatic glucose sensors are discussed. Non-enzymatic glucose sensors detect glucose by direct electrochemical oxidation on functional 2D-material electrodes, avoiding the problems of enzymatic instability. We discuss how 2D materials contribute to improved sensitivity and low detection limits by providing large active surface areas and fast electron transport. Key performance parameters such as sensitivity, linearity, limit of detection (LOD), selectivity, stability under mechanical stress, and long-term operation are examined based on recent literature. Flexible and wearable glucose biosensors, such as sweat patches and textile-based devices use 2D materials for real-time non-invasive monitoring. Printing, nanocomposite coatings, and fiber-shaped structures integrate these materials into flexible electrodes. These sensors offer high sensitivity and stability, though challenges remain in biofluid reliability, scalable production, and biocompatibility. Continued advances could enable point-of-care and continuous health monitoring.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668903","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

Efficacy of Zinc-, Copper-, and Silver-Doped Fluorapatite as Bacteriophobic Surfaces for Percutaneous Osseointegrated Device Applications 锌，铜和银掺杂氟磷灰石作为经皮骨整合装置应用的抑菌表面的功效

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-29 DOI: 10.1002/cnma.202500276

Sujee Jeyapalina, Samantha K. Steyl, Pooya Elahi, Jill Shea, Ruben Sundramurti, Jayant Agarwal, James Peter Beck

{"title":"Efficacy of Zinc-, Copper-, and Silver-Doped Fluorapatite as Bacteriophobic Surfaces for Percutaneous Osseointegrated Device Applications","authors":"Sujee Jeyapalina, Samantha K. Steyl, Pooya Elahi, Jill Shea, Ruben Sundramurti, Jayant Agarwal, James Peter Beck","doi":"10.1002/cnma.202500276","DOIUrl":"10.1002/cnma.202500276","url":null,"abstract":"Percutaneous osseointegrated (OI) prosthetic systems offer superior exoprosthetic docking compared with traditional socket-based attachments; however, their clinical success remains limited by high superficial infection rates. These infections arise primarily from the absence of a stable epithelial seal at the implant–skin interface, permitting bacterial colonization of the stoma, particularly by Staphylococcus aureus (S. aureus). Fluorapatite (FAp) coatings have previously demonstrated potential to enhance epithelial integration, yet additional antimicrobial functionality could limit bacterial colonization on the device. This study investigated metal doping as a strategy to create dual-functional FAp surfaces that resist bacterial adhesion for percutaneous OI applications. Zinc-, copper-, and silver-doped FAp were synthesized in-house using a validated precipitation method and comprehensively characterized. Sintered discs were evaluated for S. aureus adhesion and cytocompatibility to keratinocytes. Fourier transform infrared confirmed retention of the hexagonal apatite structure across all doping compositions. X-ray diffraction revealed secondary phases at higher dopant levels. SEM showed dopant-dependent microstructural changes. Only copper-doped FAp (1%–5%) reduced S. aureus adhesion by >3 log-folds. However, copper-doped surfaces exhibited reduced cytocompatibility to keratinocytes, highlighting a trade-off between anti-bacterial adhesion efficacy and epithelial attachment affinities. These findings indicate that lower copper doping levels warrant further investigation to achieve keratinocytes adhesion for percutaneous implant coating applications.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://aces.onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202500276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147669021","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

Efficient Hydrogen Evolution Catalysis Enabled by Ru Nanoparticles on Few-Layer Black Phosphorus/Graphene Heterostructured Aerogels 钌纳米颗粒在少层黑磷/石墨烯异质结构气凝胶上的高效析氢催化作用

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-29 DOI: 10.1002/cnma.202600012

Xiaotong Liu, Kashif Ali, Yanhui Lu, Donglei Guo, Xu Yu

{"title":"Efficient Hydrogen Evolution Catalysis Enabled by Ru Nanoparticles on Few-Layer Black Phosphorus/Graphene Heterostructured Aerogels","authors":"Xiaotong Liu, Kashif Ali, Yanhui Lu, Donglei Guo, Xu Yu","doi":"10.1002/cnma.202600012","DOIUrl":"10.1002/cnma.202600012","url":null,"abstract":"Developing cost-effective electrocatalysts is crucial for the hydrogen evolution reaction (HER) in water splitting. Here, we report a high-performance HER catalyst constructed from ruthenium (Ru) nanoclusters anchored on exfoliated black phosphorus/reduced graphene oxides architectures (Ru-EBP/rGO) via the hydrothermal method. The synthesis involves in-situ growth of Ru nanoparticles onto the BP nanosheets, which are uniformly distributed on the conductive GA framework. This unique architecture assembled by EBP/rGO composites provides a highly conductive and porous network for facilitating charge transfer, offering abundant anchoring sites and favorable interfacial electronic environments. Meanwhile, the well-dispersed Ru nanoclusters serve as highly active centers. Electrochemical tests demonstrate exceptional HER activity and durability for Ru-EBP/rGO in both acidic and alkaline electrolytes. Ru-EBP/rGO requires low overpotentials of 42 mV in 1 M KOH and 50 mV in 0.5 M H2SO4 at 10 mA cm−2, respectively, with corresponding Tafel slopes of 27.5 and 64.2 mV dec−1. Furthermore, Ru-EBP/rGO shows excellent long-term stability in both acidic and alkaline electrolytes, which is attributed to the strong electronic coupling at the Ru/BP/GA heterointerface and enhances the structural and chemical robustness of the active components. This study offers a promising strategy for designing advanced heterostructured electrocatalysts for hydrogen production.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668961","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

Supramolecular Silver Nanoparticle Hydrogels With Controlled Nanoparticle Size and Order: Synthesis Conditions and Possible Mechanism 具有可控纳米颗粒大小和顺序的超分子银纳米颗粒水凝胶：合成条件和可能的机理

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-29 DOI: 10.1002/cnma.202500608

Korin Gasia Ozkaya, Hynd Remita, Isabelle Lampre, Michel Goldmann, Mohamed Selmane, Niki Baccile

{"title":"Supramolecular Silver Nanoparticle Hydrogels With Controlled Nanoparticle Size and Order: Synthesis Conditions and Possible Mechanism","authors":"Korin Gasia Ozkaya, Hynd Remita, Isabelle Lampre, Michel Goldmann, Mohamed Selmane, Niki Baccile","doi":"10.1002/cnma.202500608","DOIUrl":"10.1002/cnma.202500608","url":null,"abstract":"Nanoparticle (NP)-gel hybrid systems are multifunctional materials combining the properties of metal NPs with the structural versatility of hydrogels. They find application in advanced technologies, including controlled drug delivery, sensing, flexible electronics, and tissue engineering. Incorporation of metal NPs into a gel matrix offers structural confinement and spatial distribution of the NPs, but the control of the size, size distribution, and spatial organization remains a major challenge. In a recent work, we have shown that silver NPs of controlled size (diameter of 28.0 ± 3.6 Å) can form two-dimensional arrays of long-range order coaligned with self-assembled fibers composed of a biobased bolaamphiphile glycolipid containing a single glucose headgroup opposite to a free carboxylic acid end-group. The straightforward self-assembly of the glycolipid with silver ions in water, followed by reduction, generates a silver NP hydrogel with an impressive order of NPs. The synthesis conditions of this process, which offers simplicity and enhanced sustainability are explored here by using and comparing various reduction methods (chemical, photochemical, and radiolytic) as well as by tuning the nature of the silver precursor. This article eventually proposes a mechanism of formation based on the excluded volume of the side-by-side assembly of four glycolipid molecules.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://aces.onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202500608","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147669019","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

An Insight Into the Green Synthesis Strategies and Applications of CuO Nanoparticles 纳米氧化铜绿色合成策略及应用研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-27 DOI: 10.1002/cnma.202500783

Subin Joseph, Abdul Lotif, Priyankar Paira, Rinku Chakrabarty

{"title":"An Insight Into the Green Synthesis Strategies and Applications of CuO Nanoparticles","authors":"Subin Joseph, Abdul Lotif, Priyankar Paira, Rinku Chakrabarty","doi":"10.1002/cnma.202500783","DOIUrl":"https://doi.org/10.1002/cnma.202500783","url":null,"abstract":"Copper oxide nanoparticles (CuO NPs) have garnered growing interest in recent years because of their versatile roles across scientific and technological disciplines. Green synthesis methods, particularly those employing plant or microbial extracts, offer an environmentally sustainable and nontoxic alternative to conventional chemical and physical synthesis of metal nanoparticles. Owing to their chemical stability, thermal durability, and pronounced antimicrobial properties, CuO NPs stand out for their multifunctional applications in both biomedical and catalytic fields. These nanoparticles demonstrate a wide array of biological activities, encompassing antibacterial, antifungal, antiviral, and anticancer properties. Furthermore, CuO NPs are actively utilized in catalytic degradation of toxic organic dyes, supporting efficient wastewater treatment and environmental remediation. This review provides a comprehensive analysis of green synthesis approaches for CuO NPs using various natural extracts, examines the mechanisms driving nanoparticle formation, and highlights their extensive applications in biomedicine and catalysis, with a particular focus on their efficacy in degrading hazardous organic pollutants.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615418","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

Engineering Hybrid Polymeric Gd2O3 Nanoparticles for Tumor-Targeted Neutron Capture Therapy 用于肿瘤靶向中子捕获治疗的工程杂化聚合Gd2O3纳米颗粒

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-27 DOI: 10.1002/cnma.202500673

Xiwen Chen, Pengwen Chen, Yoshihiro Tachihara, Changyuan Qin, Xuan Hou, Thahomina Khan, Nobuhiro Nitta, Masashi Yanagawa, Yuriko Sakurai, Minoru Suzuki, Shin-Ichiro Masunaga, Hiroki Tanaka, Yoshinori Sakurai, Hiroyuki Takahashi, Ichio Aoki, Hironobu Yanagie, Horacio Cabral

{"title":"Engineering Hybrid Polymeric Gd2O3 Nanoparticles for Tumor-Targeted Neutron Capture Therapy","authors":"Xiwen Chen, Pengwen Chen, Yoshihiro Tachihara, Changyuan Qin, Xuan Hou, Thahomina Khan, Nobuhiro Nitta, Masashi Yanagawa, Yuriko Sakurai, Minoru Suzuki, Shin-Ichiro Masunaga, Hiroki Tanaka, Yoshinori Sakurai, Hiroyuki Takahashi, Ichio Aoki, Hironobu Yanagie, Horacio Cabral","doi":"10.1002/cnma.202500673","DOIUrl":"10.1002/cnma.202500673","url":null,"abstract":"Neutron capture therapy (NCT) stands as a transformative approach for precision oncology. The principle relies on tumor-targeted isotopes, such as boron-10 (10B) and gadolinium-157 (157Gd), for generating cytotoxic high energy particles upon thermal neutron irradiation. Compared to 10B-based NCT (BNCT), 157Gd offer unparalleled neutron capture cross-section and MRI contrast capability, positioning it as a next-generation theranostic candidate. Here, we developed hybrid polymeric-gadolinium oxide core–shell nanoparticles (Gd2O3 NPs) as an NCT platform. The Gd2O3 NPs were synthesized from a series of poly(ethylene glycol)-poly(L-aspartic acid) (PEG-PAsp) block copolymers, aiming to optimize their biocompatibility, pharmacokinetics and tumor-targeting capability. Suitable Gd2O3 NP formulations showed sub-100 nm size and excellent colloidal stability. Moreover, the Gd2O3 NPs offered higher Gd loading and minimal Gd3+ release. In a model of intractable pancreatic cancer, the Gd2O3 NPs based on PEG-PAsp having a PEG segment of 12 kDa and 20 Asp units exhibited highest therapeutic efficacy while maintaining systemic safety. This promising performance positions the Gd2O3 NPs for further preclinical evaluation toward effective NCT treatments.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202500673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615362","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

An Insight Into the Green Synthesis Strategies and Applications of CuO Nanoparticles 纳米氧化铜绿色合成策略及应用研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-27 DOI: 10.1002/cnma.202500783

Subin Joseph, Abdul Lotif, Priyankar Paira, Rinku Chakrabarty

{"title":"An Insight Into the Green Synthesis Strategies and Applications of CuO Nanoparticles","authors":"Subin Joseph, Abdul Lotif, Priyankar Paira, Rinku Chakrabarty","doi":"10.1002/cnma.202500783","DOIUrl":"10.1002/cnma.202500783","url":null,"abstract":"Copper oxide nanoparticles (CuO NPs) have garnered growing interest in recent years because of their versatile roles across scientific and technological disciplines. Green synthesis methods, particularly those employing plant or microbial extracts, offer an environmentally sustainable and nontoxic alternative to conventional chemical and physical synthesis of metal nanoparticles. Owing to their chemical stability, thermal durability, and pronounced antimicrobial properties, CuO NPs stand out for their multifunctional applications in both biomedical and catalytic fields. These nanoparticles demonstrate a wide array of biological activities, encompassing antibacterial, antifungal, antiviral, and anticancer properties. Furthermore, CuO NPs are actively utilized in catalytic degradation of toxic organic dyes, supporting efficient wastewater treatment and environmental remediation. This review provides a comprehensive analysis of green synthesis approaches for CuO NPs using various natural extracts, examines the mechanisms driving nanoparticle formation, and highlights their extensive applications in biomedicine and catalysis, with a particular focus on their efficacy in degrading hazardous organic pollutants.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615414","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

Quantitative Distortionless Enhancement by Polarization Transfer (q-DEPT) 13C Nuclear Magenetic Resonance (NMR) Spectroscopy for Structural Elucidation of Hyperbranched Poly(glycerol) on Nanoparticles 偏振转移（q-DEPT） 13C核磁共振（NMR）光谱定量无畸变增强对纳米颗粒上超支化聚甘油的结构解析

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-27 DOI: 10.1002/cnma.202500775

Jie Yu, Hiroki Takahashi, Masahiro Nishikawa, Naoki Komatsu

{"title":"Quantitative Distortionless Enhancement by Polarization Transfer (q-DEPT) 13C Nuclear Magenetic Resonance (NMR) Spectroscopy for Structural Elucidation of Hyperbranched Poly(glycerol) on Nanoparticles","authors":"Jie Yu, Hiroki Takahashi, Masahiro Nishikawa, Naoki Komatsu","doi":"10.1002/cnma.202500775","DOIUrl":"https://doi.org/10.1002/cnma.202500775","url":null,"abstract":"Poly(glycerol) (PG) functionalization of nanoparticles (NPs) has attracted growing attention in biomedical research owing to its superior hydrophilic and stealth properties. However, the hyperbranched architecture of PG introduces structural ambiguity arising from the composition and arrangement of its subunits. Herein, we demonstrate that quantitative distortionless enhancement by polarization transfer (q-DEPT) 13C NMR gives more quantitative accuracy in structural characterization of PG subunit than the other NMR spectroscopies, including inverse-gated 13C NMR and even the other analytical methods including mass spectroscopies. Further structural elucidation is enabled by applying a topological rule in the PG chains; the number of the branching units is always two and one less than that of the terminal units in a free and a conjugated PG chain, respectively. By integrating q-DEPT analysis with this topological rule, we establish a new analytical framework for determining the average chain and unit numbers of PG at the single-chain level. This methodology is validated using various kinds of NPs, including nanodiamonds, boron nitride and boron carbide. Our framework resolves the long-standing molecular-level ambiguity of PG, enabling more reliable computational modeling and rational design in PG-based nanomedicines. These findings may provide a general strategy for the structural elucidation of hyperbranched polymers.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615417","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

Study of Positive Ageing Effect in Halide Perovskite Quantum Dots Prepared via Novel Alendronic Acid-Based Surface-Passivating Ligand 新型阿仑膦酸表面钝化配体制备卤化物钙钛矿量子点的正老化效应研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-03-27 DOI: 10.1002/cnma.202500667

Bharti Kumari, Joydeep Dhar

{"title":"Study of Positive Ageing Effect in Halide Perovskite Quantum Dots Prepared via Novel Alendronic Acid-Based Surface-Passivating Ligand","authors":"Bharti Kumari, Joydeep Dhar","doi":"10.1002/cnma.202500667","DOIUrl":"10.1002/cnma.202500667","url":null,"abstract":"Caesium lead bromide (CsPbBr3) perovskite quantum dots (QDs) are one of the promising materials for the fabrication of green light-emitting diodes (LEDs) for their near-unity photoluminescence quantum yield (PLQY) with narrow emission and high brightness. However, its ionic nature makes it susceptible to degradation from moisture, heat and light. Various surface-passivating ligands were attempted, but with limited success in rendering long-term stability. Here, we have developed a novel bisphosphonate ligand, alendronate (ALEN), by alkylating with hexyl chains of acidic protons of alendronic acid, which is otherwise sparingly soluble in common organic solvents. The ligand was characterised by spectroscopic techniques such as NMR, FT-IR, and mass spectroscopies. The CsPbBr3 QDs prepared with ALEN-oleylamine ligand combination showed narrow particle-size distribution as determined by high-resolution transmission electron microscopy and dynamic light scattering measurements. The photostability of the QDs in solution and thin film was analysed by photoluminescence spectroscopy, revealing an interesting phenomenon called positive ageing effect, in which the PLQY of QD dispersion gradually increased by 140% from its initial value of 7 to 16.94% after two and a half months of storage. The defect passivation through multidentate binding sites of ALEN is the most plausible reason for such behaviour in ALEN-stabilised CsPbBr3 QDs.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615387","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