Beilstein Journal of Nanotechnology最新文献_第2页

Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor-ferromagnetic structures. 钴纳米膜作为自旋杂化超导体-铁磁结构组成部分的磁性建模。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-09-08 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.110

Aleksey Fedotov, Olesya Severyukhina, Anastasia Salomatina, Anatolie Sidorenko

{"title":"Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor-ferromagnetic structures.","authors":"Aleksey Fedotov, Olesya Severyukhina, Anastasia Salomatina, Anatolie Sidorenko","doi":"10.3762/bjnano.16.110","DOIUrl":"10.3762/bjnano.16.110","url":null,"abstract":"The paper presents a mathematical model for studying the magnetic behavior of atoms, which takes into account spin and interatomic interactions. Two problems were solved by means of mathematical modeling. At the first stage, the problem of modeling a small nanoscale system (500 atoms) consisting of cobalt atoms was solved. The purpose of this stage of computational experiment was to check the convergence of the solution and compare the obtained data with the results of other studies. The performed calculations and satisfactory correspondence to the previously obtained data confirmed the adequacy of the applied mathematical model. The second stage of numerical studies was devoted to the analysis of the magnetic behavior of cobalt nanofilms of different thicknesses. It was shown that the film thickness has a significant influence on the magnetic parameters of the modeled nanoscale systems. It was found that the magnetic energy and magnetization norm of the system change in a nonlinear manner with increasing number of crystalline layers of the nanofilm. The peaks found on the graph of the magnetization rate change can be caused by surface effects in thin films and the formation of Neel domain walls.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1557-1566"},"PeriodicalIF":2.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12437564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079564","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

Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid. 激光束轮廓对液体激光烧蚀形成的硅纳米颗粒形貌和光学性能的影响。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-09-04 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.108

Natalie Tarasenka, Vladislav Kornev, Alena Nevar, Nikolai Tarasenko

{"title":"Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid.","authors":"Natalie Tarasenka, Vladislav Kornev, Alena Nevar, Nikolai Tarasenko","doi":"10.3762/bjnano.16.108","DOIUrl":"10.3762/bjnano.16.108","url":null,"abstract":"In this study, silicon nanoparticles (NPs) were produced by pulsed laser ablation in a liquid, aiming to investigate the influence of a laser beam profile on the properties of the resultant NPs. Morphology, inner structure, and phase composition of the formed NPs were characterized by means of ultraviolet-visible spectroscopy, high-resolution transmission electron microscopy, and Raman and photoluminescence spectroscopies, and the correlation of the NP properties with the laser beam profile was studied. Three different beam profiles were selected, namely, a Bessel beam produced using an axicon, an annular profile formed using a combination of an axicon and a converging lens, and a Gaussian beam focused on the surface of a Si target using the same converging lens. In all the schemes, a nanosecond Nd3+:YAG laser with a pulse duration of 10 ns operating at its fundamental harmonic (1064 nm) was used as an ablation source. The beam profile has been shown to be a crucial factor significantly influencing morphology and composition of the nanostructures produced. Namely, the conditions generated using a Bessel beam profile favored the production of nanostructures having elongated filament-like morphology. The synthesized colloidal Si NPs are suggested for applications as a component of electrode materials in supercapacitors and batteries.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1533-1544"},"PeriodicalIF":2.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415900/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028806","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

Transient electronics for sustainability: Emerging technologies and future directions. 可持续性瞬态电子：新兴技术和未来方向。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-09-04 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.109

Jae-Young Bae, Myung-Kyun Choi, Seung-Kyun Kang

引用次数: 0

Dendrimer-modified carbon nanotubes for the removal and recovery of heavy metal ions from water. 树状聚合物修饰碳纳米管去除和回收水中重金属离子。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-09-01 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.107

Thao Quynh Ngan Tran, Huu Trung Nguyen, Subodh Kumar, Xuan Thang Cao

{"title":"Dendrimer-modified carbon nanotubes for the removal and recovery of heavy metal ions from water.","authors":"Thao Quynh Ngan Tran, Huu Trung Nguyen, Subodh Kumar, Xuan Thang Cao","doi":"10.3762/bjnano.16.107","DOIUrl":"10.3762/bjnano.16.107","url":null,"abstract":"Effective removal of trace heavy metal ions from aqueous bodies is a pressing problem and requires significant improvement in the area of absorbent material in terms of removal efficiency and sustainability. We propose an efficient strategy to enhance the adsorption efficiency of carbon nanotubes (CNTs) by growing dendrimers on their surface. First, CNTs were pre-functionalized with maleic acid (MA) via Diels-Alder reaction in presence of a deep eutectic solvent under ultrasonication. Subsequently, dendrimers of varying length were grown by the repeated reaction of ethylene diamine and MA. Raman spectroscopy was specifically used to confirm the Diels-Alder reaction on the surface of CNTs, and other characterization techniques (SEM, EDX, XRD, TGA, and FTIR) were applied to confirm the successive growth of the dendrimers. Highly dendrimerized CNTs were found to be more effective in removing heavy metal ions (Pb2+ and Cd2+) from aqueous solutions with enhanced recyclability than less dendrimerized CNTs. Kinetic studies have revealed that the adsorption process followed a pseudo-second order kinetic model, and the rate-limiting step was mainly chemisorption. This study has not only excluded the involvement of harmful chemicals to pre-functionalize the CNTs with high loading but also provided an effective way to enhance the adsorption of heavy metal ions.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1522-1532"},"PeriodicalIF":2.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415912/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028847","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

Cross-reactivities in conjugation reactions involving iron oxide nanoparticles. 氧化铁纳米颗粒偶联反应的交叉反应性。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-29 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.106

Shoronia N Cross, Katalin V Korpany, Hanine Zakaria, Amy Szuchmacher Blum

{"title":"Cross-reactivities in conjugation reactions involving iron oxide nanoparticles.","authors":"Shoronia N Cross, Katalin V Korpany, Hanine Zakaria, Amy Szuchmacher Blum","doi":"10.3762/bjnano.16.106","DOIUrl":"10.3762/bjnano.16.106","url":null,"abstract":"The preparation of multimodal nanoparticles by capping magnetic iron oxide nanoparticles (IONPs) with functional organic molecules is a major area of research for biomedical applications. Conjugation reactions, such as carbodiimide coupling and the highly selective class of reactions known as \"click chemistry\", have been instrumental in tailoring the ligand layers of IONPs to produce functional biomedical nanomaterials. However, few studies report the controls performed to determine if the loading of molecules onto IONPs is due to the proposed coupling reaction(s) employed, or some other unknown interaction with the IONP surface. Herein, we use 3,4-dihydroxybenzoic acid-functionalized IONPs (IONP-3,4-DHBA) as a platform upon which carbodiimide coupling can be used to conjugate clickable small molecules for further functionalization using two common click reactions, namely, the copper-catalyzed azide-alkyne cycloaddition (CuAAC), and the thiol-maleimide Michael addition reactions. Through the judicious use of controls, we demonstrate significant cross-reactivities of amines, thiols, maleimides, and common disulfide reducing agents with surface Fe of IONPs and show how these unwanted interactions can produce false positive results. Without proper controls, these can lead to erroneous conclusions about the efficacy of conjugation reactions, which can have detrimental impacts on the functionality and safety of IONPs in biomedical applications.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1504-1521"},"PeriodicalIF":2.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415915/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028884","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

Nanomaterials for biomedical applications. 生物医学应用的纳米材料。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-28 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.105

Iqra Zainab, Zohra Naseem, Syeda Rubab Batool, Filippo Pierini, Seda Kizilel, Muhammad Anwaar Nazeer

引用次数: 0

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications. 激光加工在液体：洞察纳米胶体的产生和薄膜集成的能量，光子，和传感应用。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-27 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.104

Akshana Parameswaran Sreekala, Pooja Raveendran Nair, Jithin Kundalam Kadavath, Bindu Krishnan, David Avellaneda Avellaneda, M R Anantharaman, Sadasivan Shaji

{"title":"Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications.","authors":"Akshana Parameswaran Sreekala, Pooja Raveendran Nair, Jithin Kundalam Kadavath, Bindu Krishnan, David Avellaneda Avellaneda, M R Anantharaman, Sadasivan Shaji","doi":"10.3762/bjnano.16.104","DOIUrl":"10.3762/bjnano.16.104","url":null,"abstract":"Nanoparticles in their pure colloidal form synthesized by laser-assisted processes such as laser ablation/fragmentation/irradiation/melting in liquids have attained much interest from the scientific community because of their specialties like facile synthesis, ultra-high purity, biocompatibility, colloidal stability in addition to other benefits like tunable size and morphology, crystalline phases, new compounds and alloys, and defect engineering. These nanocolloids are useful for fabricating different devices mainly with applications in optoelectronics, catalysis, sensors, photodetectors, surface-enhanced Raman spectroscopy (SERS) substrates, and solar cells. In this review article, we describe different methods of nanocolloidal synthesis using laser-assisted processes and corresponding thin film fabrication methods, particularly those utilized for device fabrication and characterization. The four sections start with an introduction to the common laser-assisted synthesis for nanocolloids and different methods of thin film fabrication using these nanocolloids followed by devices fabricated and characterized for applications including photovoltaics, photodetectors, catalysis, photocatalysis, electrochemical/photoelectrochemical sensors, hydrogen/oxygen evolution, SERS sensors and other types of devices reported so far. The last section explains the challenges and further scope of these devices from laser-generated nanocolloids.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1428-1498"},"PeriodicalIF":2.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415901/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028819","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

Photochemical synthesis of silver nanoprisms via green LED irradiation and evaluation of SERS activity. 绿色LED光化学合成纳米银片及SERS活性评价。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-26 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.103

Tuan Anh Mai-Ngoc, Nhi Kieu Vo, Cong Danh Nguyen, Thi Kim Xuan Nguyen, Thanh Sinh Do

{"title":"Photochemical synthesis of silver nanoprisms via green LED irradiation and evaluation of SERS activity.","authors":"Tuan Anh Mai-Ngoc, Nhi Kieu Vo, Cong Danh Nguyen, Thi Kim Xuan Nguyen, Thanh Sinh Do","doi":"10.3762/bjnano.16.103","DOIUrl":"10.3762/bjnano.16.103","url":null,"abstract":"Silver nanoprisms (AgNPrs) are promising candidates for surface-enhanced Raman scattering (SERS) due to their strong localized surface plasmon resonance and sharp tip geometry. In this study, AgNPrs were synthesized through a photochemical method by irradiating spherical silver nanoparticle seeds with 10 W green light-emitting diodes (LEDs; 520 ± 20 nm) for various periods of time up to 72 h. The growth mechanism was investigated through ultraviolet-visible spectroscopy, field-emission scanning electron microscopy, X-ray diffraction, and transmission electron microscopy analyses, confirming the gradual transformation of spherical seeds into AgNPrs. Optimal conversion was observed after 72 h of irradiation, producing well-defined AgNPrs with an average size of 78 nm. The SERS activity of the AgNPrs was evaluated using 4-mercaptobenzoic acid as a probe molecule. Compared to spherical AgNPs, AgNPrs exhibited a significantly higher SERS enhancement factor of 1.15 × 106, enabling detection limits down to 10-9 M. These findings demonstrate that green LED-mediated synthesis provides a simple, environmentally friendly route to fabricate high-yield AgNPrs with superior SERS capabilities, suitable for ultrasensitive chemical and biological sensing applications.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1417-1427"},"PeriodicalIF":2.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415907/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028869","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 role of biochar in combating microplastic pollution: a bibliometric analysis in environmental contexts. 生物炭在对抗微塑料污染中的作用：环境背景下的文献计量学分析。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-21 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.102

Tuan Minh Truong Dang, Thao Thu Thi Huynh, Guo-Ping Chang-Chien, Ha Manh Bui

{"title":"The role of biochar in combating microplastic pollution: a bibliometric analysis in environmental contexts.","authors":"Tuan Minh Truong Dang, Thao Thu Thi Huynh, Guo-Ping Chang-Chien, Ha Manh Bui","doi":"10.3762/bjnano.16.102","DOIUrl":"10.3762/bjnano.16.102","url":null,"abstract":"This study employs a bibliometric analysis using CiteSpace to explore research trends on the impact of biochar on microplastics (MPs) in soil and water environments. In agricultural soils, MPs reduce crop yield, alter soil properties, and disrupt microbial diversity and nutrient cycling. Biochar, a stable and eco-friendly material, has demonstrated effectiveness in mitigating these effects by restoring soil chemistry, enhancing microbial diversity and improving crop productivity. Recent studies report that biochar increases crop yields by 30-81%, even under high MP contamination levels (up to five times that of biochar-modified bacteria). Additionally, biochar enhances Olsen-P availability by 46.6%, increases soil organic carbon in microaggregates by 35.7%, and reduces antibiotic resistance genes by promoting beneficial microbes such as Subgroup 10, Bacillus, and Pseudomonas. In aquatic systems, biochar serves as an efficient adsorbent, particularly for MPs larger than 10 µm, including polystyrene. Studies suggest that fixed-column models achieve superior removal efficiency (95.31% ± 5.26%) compared to batch systems (93.36% ± 4.92%). Specifically, for MPs ≥10 µm, fixed columns reach 99% efficiency, while magnetically modified biochar captures 96.2% of MPs as small as 1 µm. These efficiencies stem from biochar's integration of physical and chemical mechanisms that enhance MP retention, particularly for MPs smaller than 10 µm, positioning it as a promising solution for nanoplastic remediation.","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"16 ","pages":"1401-1416"},"PeriodicalIF":2.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12415920/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028821","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

Parylene-coated platinum nanowire electrodes for biomolecular sensing applications. 生物分子传感应用的聚二甲苯包覆铂纳米线电极。

IF 2.7 4区材料科学

Beilstein Journal of Nanotechnology Pub Date : 2025-08-20 eCollection Date: 2025-01-01 DOI: 10.3762/bjnano.16.101

Chao Liu, Peker Milas, Michael G Spencer, Birol Ozturk

引用次数: 0