Nanoscale Advances最新文献

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‘Vitrimer nanocomposites’ derived from graphene oxide and post-consumer recycled polypropylene† 由氧化石墨烯和消费后回收聚丙烯制成的“玻璃体纳米复合材料”。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-13 DOI: 10.1039/D4NA00904E
Indranil Dey, Debashrita Kundu, Sayon Ghosh, Samir Mandal, Ketaki Samanta and Suryasarathi Bose
{"title":"‘Vitrimer nanocomposites’ derived from graphene oxide and post-consumer recycled polypropylene†","authors":"Indranil Dey, Debashrita Kundu, Sayon Ghosh, Samir Mandal, Ketaki Samanta and Suryasarathi Bose","doi":"10.1039/D4NA00904E","DOIUrl":"10.1039/D4NA00904E","url":null,"abstract":"<p >Post-consumer recycled polypropylene (PCR PP) is promising for sustainable applications, yet its limitations in electrical conductivity and mechanical properties require modifications. This study develops a vitrimer nanocomposite by modifying PCR PP <em>via</em> styrene-assisted maleic anhydride grafting and incorporating a molecule containing multiple epoxide groups facilitating effective crosslinking. Graphene oxide (GO) is added as a nanofiller, improving rheological, thermal, electrical and infrared thermal properties. Characterization techniques confirm structural enhancements, while tensile testing shows significant gains in strength and modulus. The vitrimer nanocomposite demonstrates recyclability and high performance, offering a sustainable path for advanced engineering applications within a circular economy framework.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 10","pages":" 2904-2915"},"PeriodicalIF":4.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955918/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Highly sensitive SERS-active substrate with uniform gold nanostructures on heat-treated Ni foam for detection of cardiovascular disease biomarker† 热处理镍泡沫上具有均匀金纳米结构的高灵敏度sers活性底物用于检测心血管疾病生物标志物。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-13 DOI: 10.1039/D5NA00052A
Sunghoon Yoo, Jaejun Park, Dong Hwan Nam, Sumin Kim, Dongtak Jeong, Moon-Keun Lee and Seunghyun Lee
{"title":"Highly sensitive SERS-active substrate with uniform gold nanostructures on heat-treated Ni foam for detection of cardiovascular disease biomarker†","authors":"Sunghoon Yoo, Jaejun Park, Dong Hwan Nam, Sumin Kim, Dongtak Jeong, Moon-Keun Lee and Seunghyun Lee","doi":"10.1039/D5NA00052A","DOIUrl":"10.1039/D5NA00052A","url":null,"abstract":"<p >Surface-enhanced Raman scattering (SERS) immunoassays for biomarker detection have attracted considerable attention owing to their high sensitivity and selectivity. In this study, we fabricated hotspot-rich SERS-active substrates by depositing gold after forming a protruding structure on the surface <em>via</em> high-temperature heat treatment. The structure formed by the heat treatment enabled a more uniform and dense gold nanostructure, which provided more hotspots within the focal volume of the Raman laser, thereby enhancing the SERS signal. This was verified by calculating the electromagnetic field using a finite element method. The fabricated SERS-active substrates and 50 nm gold nanoparticles were used to perform a competitive assay for the detection of cardiac troponin I (cTnI). The assay demonstrated a cTnI detection range of 10<small><sup>0</sup></small>–10<small><sup>6</sup></small> pg mL<small><sup>−1</sup></small> with a detection limit of 5.8 pg mL<small><sup>−1</sup></small>. This indicates that the SERS-active substrate fabricated from the Ni foam has the potential to be used as a sensitive and selective tool for the detection of various biomarkers in complex biological samples.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 8","pages":" 2171-2181"},"PeriodicalIF":4.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11905949/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A new insight into the fabrication of colloidal isotropic ZnO nanocrystals by an organometallic approach† 通过有机金属方法制备胶体各向同性氧化锌纳米晶体的新见解。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-12 DOI: 10.1039/D4NA00933A
Anna Wojewódzka, Małgorzata Wolska-Pietkiewicz, Roman H. Szczepanowski, Maria Jędrzejewska, Karolina Zelga and Janusz Lewiński
{"title":"A new insight into the fabrication of colloidal isotropic ZnO nanocrystals by an organometallic approach†","authors":"Anna Wojewódzka, Małgorzata Wolska-Pietkiewicz, Roman H. Szczepanowski, Maria Jędrzejewska, Karolina Zelga and Janusz Lewiński","doi":"10.1039/D4NA00933A","DOIUrl":"10.1039/D4NA00933A","url":null,"abstract":"<p >The study of factors controlling nanocrystal (NC) growth is essential for uncovering and understanding nanomaterial formation, which typically involves a complex sequence of precursor reactions, nucleation, and growth processes. Herein, as part of the continuous development of the self-supporting organometallic approach for the preparation of quantum-sized colloidal zinc oxide (ZnO) NCs, we selected a series of [EtZn(X)]-type carboxylate precursors, where X = methoxyacetate, 2-(2-methoxyethoxy)acetate, or 2-[2-(2-methoxyethoxy)ethoxy]acetate, as model self-supporting systems with varying carboxylate tail lengths. The controlled exposure of a [EtZn(X)]-type precursor solution to air afforded colloidal ZnO NCs with a narrow unimodal size distribution and coated with strongly anchored X-type ligands. Employing optical spectroscopy techniques, we investigate how the growth dynamics of NCs depend on the length of the carboxylate tail. Moreover, leveraging analytical ultracentrifugation (AUC), we meticulously examined the behavior of NCs in solution under centrifugal forces to gain valuable insights into their stability and aggregation tendencies. This study not only enhances understanding of the underlying ‘living growth’ of organometallic-derived nanostructures that leads to the formation of thermodynamically stable and monodispersed ZnO NCs but also significantly contributes to the ongoing development of more effective methods for synthesizing colloidal ZnO NCs, thereby advancing the field of materials science.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2677-2685"},"PeriodicalIF":4.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11938107/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Metal–ligand interface effect in the chirality transfer from l- and d-glutathione to gold, silver and copper nanoparticles† l-谷胱甘肽和d-谷胱甘肽手性转移到金、银和铜纳米粒子中的金属配体界面效应。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-12 DOI: 10.1039/D5NA00208G
Juan Carlos López-Olivos, Andrés Álvarez-García, Georgina Garza Ramos, Lázaro Huerta, Paola Molina, Alejandro Heredia-Barbero, Ignacio L. Garzón and Penélope Rodríguez-Zamora
{"title":"Metal–ligand interface effect in the chirality transfer from l- and d-glutathione to gold, silver and copper nanoparticles†","authors":"Juan Carlos López-Olivos, Andrés Álvarez-García, Georgina Garza Ramos, Lázaro Huerta, Paola Molina, Alejandro Heredia-Barbero, Ignacio L. Garzón and Penélope Rodríguez-Zamora","doi":"10.1039/D5NA00208G","DOIUrl":"10.1039/D5NA00208G","url":null,"abstract":"<p >Glutathione (GSH) plays a pivotal role in numerous physiological and metabolic processes, including the defense of cells against free radicals and metal toxicity. This tripeptide has been combined with several metal nanoparticles to form a metal–organic interface with unique properties. Here, we implement a one-step, high-yield synthesis method to produce ultrasmall gold, silver, and copper nanoparticles in the intermediate size regime between size-selected nanoclusters and plasmonic nanoparticles to be functionalized with <small>L</small>- and <small>D</small>-glutathione, and study the chirality transfer evidenced by the emergent optical activity observed for each case. The distinctive interactions that take place at the metal–ligand interface for each metal are primarily accountable for establishing the properties of this system. In its protonated state, glutathione anchors only by its thiol group to the surface of gold and copper nanoparticles, whilst for silver nanoparticles an additional binding site through the nitrogen atom of the amide group was indicated by XPS data, albeit with a relatively low proportion. This may contribute to the higher anisotropy factor observed in silver–glutathione nanoparticles. Such slight variations in adsorption configuration generate different chiroptical activity, which has been analyzed per energy region using time-dependent DFT calculations, revealing that metal-to-ligand transitions dominate most of the spectra while ligand-to-ligand are also present in the higher energy regime. Moreover, FTIR and CD data together suggest that those dissimilarities also propitiate particular peptide self-assemblies through intermolecular GSH interactions for each metal, which result in supramolecular structures with properties of beta-sheet arrays. This study offers a parallel examination of the chirality of glutathione-functionalized coinage metals, allowing to establish decisive differences that can be tailored to benefit developments in chiral biomedicine and other diverse applications.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2648-2662"},"PeriodicalIF":4.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11915459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Development of a crystalline n-AgBr/p-NiO binary heterojunction for photocatalytic degradation of organic contaminants with accompanying mineralization, adsorption, and antimicrobial studies† 晶体n-AgBr/p-NiO二元异质结光催化降解有机污染物及其矿化、吸附和抗菌研究的发展。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-12 DOI: 10.1039/D4NA01065E
Murad Z. A. Warshagha, Ziyaur Rasool, Mohammad Saud Athar, Mohammad Muneer, Hatem M. Altass, Raad Felemban, Abdelrahman S. Khder and Saleh A. Ahmed
{"title":"Development of a crystalline n-AgBr/p-NiO binary heterojunction for photocatalytic degradation of organic contaminants with accompanying mineralization, adsorption, and antimicrobial studies†","authors":"Murad Z. A. Warshagha, Ziyaur Rasool, Mohammad Saud Athar, Mohammad Muneer, Hatem M. Altass, Raad Felemban, Abdelrahman S. Khder and Saleh A. Ahmed","doi":"10.1039/D4NA01065E","DOIUrl":"10.1039/D4NA01065E","url":null,"abstract":"<p >A highly effective and unique AgBr–NiO binary heterojunction was developed using an effective one-pot sol–gel method. The physicochemical properties of the produced materials were carefully examined using analytical techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis-DRS), Fourier transform infrared spectroscopy (FTIR), and photoluminescence (PL). The mesoporous nature and high surface properties of AgBr–NiO were revealed by the BET analysis. The AgBr–NiO composite showed greater photocatalytic degradation efficiency than bare AgBr and NiO when exposed to visible light for the colored anionic dye rhodamine B (RhB) and bisphenol A (BPA), a colorless endocrine-disrupting contaminant (EDC), resulting in high photocatalytic activity for the degradation of RhB (97.6% in 11 min) and BPA (85% in 120 min). Additionally, a notable decrease in TOC over time was observed under similar reaction conditions in the photo-mineralization examination of both model pollutants. Trapping tests were conducted to determine which reactive oxygen species (ROS) were involved in the degradation process. A plausible Z-scheme mechanism for this n–p heterojunction was proposed to explain the formation of e<small><sup>−</sup></small>/h<small><sup>+</sup></small> pairs induced by visible light. The proposed work facilitates the development of a recyclable photocatalyst characterized by high biological activity and low toxicity.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2709-2724"},"PeriodicalIF":4.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11949248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Inclusion of polysaccharides in perovskite thin films: from in-solution interaction to film formation and stability† 钙钛矿薄膜中多糖的包合:从溶液中相互作用到薄膜的形成和稳定性。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-11 DOI: 10.1039/D4NA01036A
Francesco Bisconti, Antonella Giuri, Nadir Vanni, Sonia Carallo, Silvia Spera, Rosamaria Marrazzo, Riccardo Po', Paolo Biagini, Barbara Paci, Amanda Generosi, Marco Guaragno, Carola Esposito Corcione, Andrea Listorti, Silvia Colella and Aurora Rizzo
{"title":"Inclusion of polysaccharides in perovskite thin films: from in-solution interaction to film formation and stability†","authors":"Francesco Bisconti, Antonella Giuri, Nadir Vanni, Sonia Carallo, Silvia Spera, Rosamaria Marrazzo, Riccardo Po', Paolo Biagini, Barbara Paci, Amanda Generosi, Marco Guaragno, Carola Esposito Corcione, Andrea Listorti, Silvia Colella and Aurora Rizzo","doi":"10.1039/D4NA01036A","DOIUrl":"10.1039/D4NA01036A","url":null,"abstract":"<p >Despite perovskite solar cells (PSCs) being among the most promising photovoltaic technologies, their widespread adoption requires further advancements in material processability and long-term stability. Polysaccharides have emerged as effective additives for assisted perovskite thin film crystallization in one step dripping-free deposition. Here, with the aim of rationalising their effect, the role of the hydroxyl groups (–OH) in the polymer structure, affecting the formation of perovskite–polymer nanocomposites, has been thoroughly analysed by comparing two celluloses, hydroxyethyl cellulose (HEC) and cellulose acetate (CAT), in which some of the –OH groups are replaced by acetyl groups. The combination of nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and rheological analysis showed that HEC strongly interacts with perovskite precursors already in solution, retards DMSO evaporation and then modifies the crystallisation dynamics process, resulting in a film characterised by highly uniform grain structure and improved film stability, with a power conversion efficiency (PCE) of 15.89%. In contrast, CAT with partially substituted –OH groups showed weaker interactions resulting in non-uniform crystal growth and poor film morphology. Furthermore, Energy Dispersive X-ray Reflectivity (EDXR), Atomic Force Microscopy (AFM), and X-ray Diffraction (XRD) confirm that HEC-based films maintain structural stability under light-aging conditions, whereas pristine methylammonium lead iodide (MAPbI<small><sub>3</sub></small>) undergoes significant degradation. These findings highlight the potential of HEC as an intrinsic stabilizer for perovskite films, paving the way for more durable and scalable PSC technologies.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 8","pages":" 2145-2157"},"PeriodicalIF":4.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11913129/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143657781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fn14-targeting, NIR-II responsive nanomaterials for enhanced radiotherapy against glioblastomas† fn14靶向、NIR-II响应的纳米材料用于胶质母细胞瘤的强化放疗。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-11 DOI: 10.1039/D4NA00788C
Wei Fu, Qing Liang, Yuxi Ma, Shiqiong Lei, Ruiqi Li, Xin Zheng, Lian Chen, Jiayuan Chen, Xing Cai, Xiaofang Dai, Hongwei Duan, Wenshan He and Jinghua Ren
{"title":"Fn14-targeting, NIR-II responsive nanomaterials for enhanced radiotherapy against glioblastomas†","authors":"Wei Fu, Qing Liang, Yuxi Ma, Shiqiong Lei, Ruiqi Li, Xin Zheng, Lian Chen, Jiayuan Chen, Xing Cai, Xiaofang Dai, Hongwei Duan, Wenshan He and Jinghua Ren","doi":"10.1039/D4NA00788C","DOIUrl":"10.1039/D4NA00788C","url":null,"abstract":"<p >Radiotherapy is a common treatment option for patients with glioblastoma multiforme. However, tumor heterogeneity causes varying responses to radiation among different tumor subpopulations. Cancer cells that endure radiotherapy exhibit radioresistance, resulting in the ineffectiveness of radiation therapy and eventual tumor relapse. In this study, we discovered that the fibroblast growth factor-inducible 14 (Fn14)-positive tumor cells were enriched in tumor residual foci after radiation, ultimately leading to treatment failure. Fn14-expressing glioma cells survived ionizing radiation through preferential activation of DNA damage checkpoint response. We have thus engineered an Fn14-targeting and NIR-II responsive plasmonic gold nanosystem named Fn14-AuNPs, which can precisely internalize into Fn14-overexpressed glioma cells and have an excellent BBB-crossing capability. As gold nanoparticles, by inhibition of DNA repair processes and induction of G<small><sub>2</sub></small>/M cells cycle arrest, Fn14-AuNPs nanoparticles improved the radiosensitivity of tumor cells. Meanwhile, Fn14-AuNPs induced localized heat under NIR-II photoirradiation, thus impeding RT-induced DNA damage checkpoint response. This versatile nanosensitizer, combined with NIR-II laser photoirradiation, can eradicate radioresistant subpopulations of glioblastoma and improve the therapeutic effect of radiotherapy. This finding presents an effective radiosensitization strategy by targeting radioresistant subpopulations, which can efficiently overcome the constraints imposed in clinical radiotherapy and offer a hopeful avenue to enhance the treatment effectivity of radiotherapy in glioblastoma.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2634-2647"},"PeriodicalIF":4.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11915457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Green procedures for synthesizing potential hNMDA receptor allosteric modulators through reduction and one-pot reductive acetylation of nitro(hetero)arenes using a superparamagnetic Fe3O4@APTMS@Cp2ZrClx (x = 0, 1, 2) nanocatalyst† 利用超顺磁性Fe3O4@APTMS@Cp2ZrCl x (x = 0,1,2)纳米催化剂,通过还原和一锅还原乙酰化硝基(杂)芳烃合成潜在hNMDA受体变构调节剂的绿色过程。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-10 DOI: 10.1039/D4NA00882K
Hossein Mousavi, Behzad Zeynizadeh and Farhad Sepehraddin
{"title":"Green procedures for synthesizing potential hNMDA receptor allosteric modulators through reduction and one-pot reductive acetylation of nitro(hetero)arenes using a superparamagnetic Fe3O4@APTMS@Cp2ZrClx (x = 0, 1, 2) nanocatalyst†","authors":"Hossein Mousavi, Behzad Zeynizadeh and Farhad Sepehraddin","doi":"10.1039/D4NA00882K","DOIUrl":"10.1039/D4NA00882K","url":null,"abstract":"<p >The conversion of nitro(hetero)arenes to corresponding (hetero)aryl amines and other practical organic compounds plays a crucial role in various sciences, especially environmental remediation and public health. In the current research work, diverse green and efficient strategies for the convenient reduction (hydrogenation) and one-pot two-step reductive acetylation of nitro(hetero)arenes using a core–shell-type mesoporous zirconocene-containing magnetically recoverable nanocomposite (<em>viz.</em> Fe<small><sub>3</sub></small>O<small><sub>4</sub></small>@APTMS@Cp<small><sub>2</sub></small>ZrCl<small><sub><em>x</em> (<em>x</em> = 0, 1, 2)</sub></small>) as a powerful nanocatalytic system have been developed. In the presented organic transformations, the superparamagnetic Fe<small><sub>3</sub></small>O<small><sub>4</sub></small>@APTMS@Cp<small><sub>2</sub></small>ZrCl<small><sub><em>x</em> (<em>x</em> = 0, 1, 2)</sub></small> nanocomposite exhibited satisfactory turnover numbers (TONs) and turnover frequencies (TOFs), along with acceptable reusability. On the other hand, we investigated the potential biological effect of the synthesized (hetero)aryl amines and <em>N</em>-(hetero)aryl acetamides against the transmembrane domain (TMD) of the human <em>N</em>-methyl-<small>D</small>-aspartate (<em>h</em>NMDA) receptor based on molecular docking studies. Furthermore, the drug-likeness properties of our hit compound (<em>viz. N</em>-(3-(1-hydroxyethyl)phenyl)acetamide) have been scrutinized by <em>in silico</em> ADMET analyses.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2528-2553"},"PeriodicalIF":4.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11892742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143605421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Transition in morphology and properties in bottom-up HPHT nanodiamonds synthesized from chloroadamantane 氯金刚烷自下而上合成HPHT纳米金刚石的形貌和性能转变。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-10 DOI: 10.1039/D4NA00802B
Stepan Stehlik, Petr Belsky, Tomas Kovarik, Zuzana Nemeckova, Jiri Henych, Egor Ukraintsev, Ales Vlk, Martin Ledinsky and Evgeny Ekimov
{"title":"Transition in morphology and properties in bottom-up HPHT nanodiamonds synthesized from chloroadamantane","authors":"Stepan Stehlik, Petr Belsky, Tomas Kovarik, Zuzana Nemeckova, Jiri Henych, Egor Ukraintsev, Ales Vlk, Martin Ledinsky and Evgeny Ekimov","doi":"10.1039/D4NA00802B","DOIUrl":"10.1039/D4NA00802B","url":null,"abstract":"<p >Direct bottom-up high pressure high temperature (BU_HPHT) synthesis of nanodiamonds (NDs) from organic precursors excels in the ability to control the size of the resulting BU_HPHT NDs <em>via</em> the temperature of the synthesis. Here we investigated size-dependent thermal, colloidal, and structural properties of the BU_HPHT NDs and focused on the transition in morphology and properties occurring at around 900 °C (≈2 nm). Using transmission electron microscopy, small angle X-ray scattering and atomic force microscopy we show that the sub-900 °C samples (&lt;2 nm NDs) do not have nanoparticle character but 2D platelet morphology with sub-nm unit thickness. Correspondingly, sub-900 °C samples (&lt;2 nm NDs) have a negative zeta potential and hydrophobic character and should be considered as a form of a molecular diamond. The above-900C (&gt;2 nm NDs) samples have nanocrystalline character, positive zeta potential and are dispersible in water similarly to other types of hydrogenated NDs. By <em>in situ</em> Raman spectroscopy experiments, we show that the transition is also related to the structural instability of the oxidized sub-2 nm BU_HPHT NDs.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2575-2584"},"PeriodicalIF":4.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11905917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143649691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Nanomagnetic nickel complex based on salicylamide and l-proline ligands as an efficient heterogeneous catalyst for synthesis of tetrazoles 基于水杨酰胺和l-脯氨酸配体的纳米磁性镍配合物作为合成四唑的高效非均相催化剂。
IF 4.6 3区 材料科学
Nanoscale Advances Pub Date : 2025-03-10 DOI: 10.1039/D5NA00168D
Chou-Yi Hsu, Ghusoon Faidhi Hameed, Irfan Ahmad, Abhinav Kumar, Subbulakshmi Ganesan, Aman Shankhyan, S. Sunitha and Rajashree Panigrahi
{"title":"Nanomagnetic nickel complex based on salicylamide and l-proline ligands as an efficient heterogeneous catalyst for synthesis of tetrazoles","authors":"Chou-Yi Hsu, Ghusoon Faidhi Hameed, Irfan Ahmad, Abhinav Kumar, Subbulakshmi Ganesan, Aman Shankhyan, S. Sunitha and Rajashree Panigrahi","doi":"10.1039/D5NA00168D","DOIUrl":"10.1039/D5NA00168D","url":null,"abstract":"<p >A novel salicylamide–<small>L</small>-proline–nickel(<small>II</small>) complex, supported on magnetic iron oxide [Fe<small><sub>3</sub></small>O<small><sub>4</sub></small>@salicylamide–<small>L</small>-proline–Ni(<small>II</small>)], was synthesized through a three-step procedure. This included the functionalization of Fe<small><sub>3</sub></small>O<small><sub>4</sub></small> with amine groups using glycine as a linker, followed by direct amidation of salicylic acid and its subsequent coordination with Ni(<small>II</small>) and <small>L</small>-proline as a co-ligand to form the nanomagnetic Ni(<small>II</small>) complex. The resulting catalyst was comprehensively characterized by several techniques. The catalyst exhibited outstanding catalytic performance in the homoselective synthesis of 5-substituted-1<em>H</em>-tetrazoles from benzonitriles. Notably, it demonstrated excellent recyclability, maintaining high efficiency over eight reaction cycles. The use of a low-cost linker, ligand, and complex catalyst, combined with easy magnetic separation, minimal leaching, and scalability, renders this approach both environmentally sustainable and economically advantageous compared to traditional Ni-based methods.</p>","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" 9","pages":" 2663-2676"},"PeriodicalIF":4.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11933924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143720573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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