Beilstein Journal of Nanotechnology最新文献

{"title":"Probing internal continua and atomic ultrafast charge transfer within size-controlled nanoparticles by post-collision interaction in core-hole clock spectroscopy.","authors":"Johannes Lütgert, Erika Giangrisostomi, Nomi L A N Sorgenfrei, Alexander Föhlisch","doi":"10.3762/bjnano.17.33","DOIUrl":"https://doi.org/10.3762/bjnano.17.33","url":null,"abstract":"<p><p>This study investigates size-controlled, quantum-confined CdSe/ZnS core-shell quantum dots using core-hole clock spectroscopy in combination with post-collision interaction (PCI) line shape analysis, providing insights into local charge transfer dynamics and internal continuum states. We observe an acceleration of charge transfer times by almost one order of magnitude in thin-shell quantum dots, comprising only one or three double layers of ZnS, before reaching a size-independent limit. This size-dependence is governed by the existence of a faster charge transfer channel toward the CdSe core, only accessible for the inner-most shell layers, rather than a quantum confinement effect. By extending the traditional PCI model from free-electron systems to bound-state continua, we further establish a framework for interpreting line shape asymmetries and peak shifts that are frequently observed but often overlooked in resonant Auger measurements. We show that the strongly enhanced PCI in the samples with one or three double layers can be attributed to reduced collective electronic screening. This comprehensive experimental approach enables the simultaneous observation of collective electronic properties and atom-specific dynamics within in a single measurement under identical sample conditions, an advance particularly valuable for complex, sensitive materials.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"505-514"},"PeriodicalIF":2.7,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071936/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147687921","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}

{"title":"Upcycling agroindustrial waste into graphene oxide supports for gold nanoparticles: toward sustainable nanomaterials.","authors":"Juan Marcos Castro-Tapia, Selene Acosta, Hiram Joazet Ojeda-Galván, Elsie Evelyn Araujo-Palomo, Edgar Giovanni Villabona-Leal, Mildred Quintana","doi":"10.3762/bjnano.17.32","DOIUrl":"https://doi.org/10.3762/bjnano.17.32","url":null,"abstract":"<p><p>The aim of this work is to develop a sustainable route for producing graphene oxide-based materials from agroindustrial waste and to evaluate their structural and chemical properties in comparison with conventional graphene oxide (GO) and reduced graphene oxide (rGO). Agroindustrial waste-derived graphene oxide (Agro-GO) was synthesized from peanut shells and spent coffee grounds via a ferrocene-assisted green pyrolysis-oxidation approach. The resulting materials were compared with GO prepared via the Marcano-modified Hummers' method and its hydrazine-reduced counterpart (rGO). Comprehensive characterization was performed using UV-vis, ATR-FTIR, XPS, XRD, and Raman measurements, complemented by TGA and TEM to assess optical properties, surface chemistry, and structural and morphological features. Additionally, gold nanoparticles (AuNPs) were photochemically deposited onto Agro-GO to evaluate its potential for nanotechnology-related applications. The results reveal that Agro-GO exhibits tunable oxidation levels, diverse surface functionalities, and morphologies comparable to those of conventional GO; these properties strongly depend on the type of agroindustrial waste precursor used. These findings demonstrate the feasibility of transforming agroindustrial waste into high-value graphene-based nanomaterials and highlight the potential of sustainable synthesis routes for advancing environmentally responsible carbon-based technologies.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"489-504"},"PeriodicalIF":2.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13058278/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643730","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}

{"title":"Defects and defect-mediated engineering of two-dimensional materials: challenges and open questions.","authors":"Arkady V Krasheninnikov, Matthias Batzill, Anouar-Akacha Delenda, Marija Drndić, Chris Ewels, Katharina J Franke, Mahdi Ghorbani-Asl, Alexander Holleitner, Ado Jorio, Ute Kaiser, Daria Kieczka, Hannu-Pekka Komsa, Jani Kotakoski, Manuel Längle, David Lamprecht, Yun Liu, Steven G Louie, Janina Maultzsch, Thomas Michely, Katherine Milton, Anna Niggas, Hanako Okuno, Joshua A Robinson, Marika Schleberger, Bruno Schuler, Alexander Shluger, Kazu Suenaga, Kristian S Thygesen, Richard A Wilhelm, E Harriet Åhlgren, Carla Bittencourt","doi":"10.3762/bjnano.17.31","DOIUrl":"https://doi.org/10.3762/bjnano.17.31","url":null,"abstract":"<p><p>Compared to bulk solids, defects in low-dimensional materials and, specifically, 2D systems are expected to have a stronger effect, detrimental or beneficial, on their properties. Owing to their geometry, defects in 2D materials can easily be formed due to the interaction with the environment or under impacts of energetic particles, such as ions and electrons. At the same time, many concepts of defect production under irradiation in bulk systems are not applicable for 2D materials or require substantial modifications. Various aspects of the physics and chemistry of defects in 2D materials have been addressed, and the results of these investigations are presented in hundreds of research papers and review articles. However, the challenges and open questions that still remain in the field have received relatively little attention. These topics were recently addressed at the symposium \"Defect-mediated engineering of nanomaterials for energy and quantum applications\" organized by the Beilstein-Institut. Following the discussions at the symposium, here, we present the challenges and open questions in our understanding of the behavior of defective 2D materials, interaction of energetic particles with low-dimensional targets, and defect-mediated engineering of the properties of 2D systems. We further discuss possible solutions to these problems or suggest \"work-arounds\", which should accelerate the progress in the field.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"454-488"},"PeriodicalIF":2.7,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13058279/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643691","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}

{"title":"Nanocarrier-integrated multilayer films produced by 3D printing for improved skin adhesion and curcumin photostability.","authors":"Thayse Viana de Oliveira, Ana Paula Farias Leão, Júlia Leão, Cesar Liberato Petzhold, Ruy Carlos Ruver Beck","doi":"10.3762/bjnano.17.30","DOIUrl":"https://doi.org/10.3762/bjnano.17.30","url":null,"abstract":"<p><p>This proof-of-concept study evaluated whether semi-solid extrusion (SSE) 3D printing could be used to fabricate multilayer topical films that simultaneously enhance skin bioadhesion and photoprotection of curcumin, a highly photolabile anti-inflammatory and antioxidant compound. The development of topical films for cutaneous delivery faces several challenges, including the need for strong skin adhesion and the protection of photolabile actives from light exposure. We hypothesized that multilayered films designed for the cutaneous delivery of curcumin and produced by SSE could address these limitations. To overcome its poor solubility and enhance bioadhesion, curcumin was encapsulated in polymeric nanocapsules (C-NCs), yielding a mean particle size of 218 ± 5 nm, a polydispersity index of 0.10 ± 0.02, a zeta potential of -11 ± 4 mV, and 100% encapsulation efficiency. Films were fabricated containing either C-NCs (F_C-NC) or unloaded curcumin (F_C) and consisted of three layers, namely, a chitosan-based bottom layer, a middle layer of carboxymethylcellulose and alginate, and a carboxymethylcellulose top layer incorporating titanium dioxide (TiO₂). The lower and intermediate layers contained C-NC or curcumin. The final films (15 × 15 × 1.5 mm) contained 282.20 ± 7.75 µg and 246.80 ± 6.70 µg of curcumin in F_C-NC and F_C, respectively. Films containing the bottom chitosan layer exhibited the highest bioadhesion, while the presence of a TiO₂ top layer effectively prevented UVC-induced photodegradation, supporting our hypothesis. Furthermore, the presence of C-NCs in F_C-NC films promoted higher bioadhesion. This proof-of-concept study demonstrates the feasibility of integrating nanocarriers with 3D printing technology to engineer multilayer polymeric films for cutaneous application, offering enhanced bioadhesion and photoprotection. This work demonstrates how additive manufacturing can be used to design hierarchically structured, nanocarrier-integrated systems with spatially resolved functionalities.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"440-453"},"PeriodicalIF":2.7,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13040269/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147608109","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}

{"title":"First-principles study on elastic properties of Cu, (Cu_1- <i>_x</i> ,Ni <i>_x</i> )₃Sn and interfacial mechanical properties of (Cu_1- <i>_x</i> ,Ni <i>_x</i> )₃Sn/Cu in the lead-free solder joint.","authors":"Guomin Hua","doi":"10.3762/bjnano.17.29","DOIUrl":"10.3762/bjnano.17.29","url":null,"abstract":"<p><p>In this study, the elastic properties of Cu and (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn were calculated to reveal the effects of Ni alloying on the interfacial mechanical properties of (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn/Cu in lead-free solder joints. The results reveal that, within the thermodynamically stable domain of (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn, the increase of Ni content can enhance the interfacial mechanical properties of (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn/Cu, and increase the reliability of the lead-free solder joints. The enhancement mechanism can be attributed to the simultaneous improvements of oriented Young's modulus and ductility of (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn, achieved by Ni alloying. But higher Ni content beyond the thermodynamically stable domain of (Cu <i>_x</i> Ni_1- <i>_x</i> )₃Sn will deteriorate the interfacial mechanical properties by mechanical or thermodynamic mechanisms and decrease the reliability of the lead-free solder joints. The results presented in this study will not only unveil the effects of Ni alloying on the interfacial properties of lead-free solder joints, but also will provide a guidance for high-performance lead-free solder design by alloying strategies to meet the requirements for electronic device miniaturization and harsh environmental applications.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"428-439"},"PeriodicalIF":2.7,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13033895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147589713","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}

{"title":"Biomimetic nanoparticles in cancer photodynamic therapy: a review of targeted delivery systems and therapeutic outcomes.","authors":"Valentina I Gorbacheva, Alexey S Grabovoy, Polina S Marukhina, Anastasiia O Syrocheva, Ekaterina P Kolesova","doi":"10.3762/bjnano.17.27","DOIUrl":"https://doi.org/10.3762/bjnano.17.27","url":null,"abstract":"<p><p>Photodynamic therapy (PDT) is a minimally invasive cancer treatment that uses photosensitizers (PSs) activated by light to produce cytotoxic reactive oxygen species (ROS). Although PDT shows clinical promise, its effectiveness is limited by factors such as insufficient tumor targeting, tumor hypoxia, PS instability, and weak immune responses. Biomimetic nanoparticles (BNPs), which combine natural biological materials like cell membranes with synthetic nanocarriers, have emerged as versatile platforms to overcome these challenges. BNPs improve PDT by enhancing tumor-specific delivery of PSs, relieving hypoxia through oxygen delivery or catalytic oxygen generation, and boosting antitumor immunity by promoting immunogenic cell death and working synergistically with immune checkpoint inhibitors. This review details recent progress in BNP-based strategies for targeted PS delivery, ROS production enhancement, hypoxia modulation, and immune system activation. Additionally, it explores multifunctional and theranostic nanoplatforms, their applications in various cancers, and advances toward clinical use. By integrating targeted delivery, tumor microenvironment modulation, and immunotherapy, BNP-facilitated PDT holds great potential for advancing precise cancer treatments.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"396-422"},"PeriodicalIF":2.7,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12973444/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147430113","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}

{"title":"Nanoinformatics: spanning scales, systems and solutions.","authors":"Iseult Lynch, Diego S T Martinez, Kunal Roy, Georgia Melagraki","doi":"10.3762/bjnano.17.28","DOIUrl":"https://doi.org/10.3762/bjnano.17.28","url":null,"abstract":"","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"423-427"},"PeriodicalIF":2.7,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12973441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147430258","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}

{"title":"Eco-efficient materials for agricultural crops based on a mineral rich in MOR- and HEU-type zeolites.","authors":"Esperanza Yamile de la Nuez-Pantoja, Inocente Rodríguez-Iznaga, Gerardo Rodríguez-Fuentes, Vitalii Petranovskii, Ariel Martínez García, José Juan Calvino Gámez, Daniel Goma Jiménez","doi":"10.3762/bjnano.17.26","DOIUrl":"https://doi.org/10.3762/bjnano.17.26","url":null,"abstract":"<p><p>Natural zeolites have great potential as nutrient carriers to develop eco-efficient materials for massive use in agriculture. Zeolitic minerals usually contain only one dominant zeolite type. The use of minerals with mixtures of zeolites in similar proportions can affect the interaction of chemical species with the zeolitic matrix, altering the behaviour of the resulting materials. In this work, a mineral consisting mainly of a mixture of two zeolites, mordenite (MOR) and clinoptilolite-heulandite (HEU) with equivalent fractions, was used to develop materials carrying nutrients (N, P, and K) for agricultural crops. The mineral matrix provides important elements such as K and Si, while N and P were incorporated into the material by treatment with ammonium hydrogenphosphate and urea. The presence of superficially adsorbed PO₄ ^3-, NH₄ ⁺ exchanged in zeolites, and urea arranged on the surface so that it covers the material and interacts with the zeolitic frameworks, was evidenced by Fourier-transform IR spectroscopy, adsorption measurements, scanning electron microscopy, scanning transmission electron microscopy, and other methods, as well as through culture tests. The complexity of the multiphase zeolitic support leads to changes in the position and intensity of FTIR bands compared to other similar materials developed using simpler zeolitic carriers dominated by HEU zeolite. The most intense NH₄ ⁺ band was observed at 1402 cm^-1, while for a HEU zeolite it was at 1540 cm^-1. This difference was associated with a higher NH₄ ⁺ content in MOR compared to HEU. Accordingly, the shift experienced by the urea amino group bands when it interacts with the frameworks of these zeolites is different. The applied treatments did not affect the structures (as evidenced by XRD) and other qualities of these zeolites, highlighting their ion-exchange and adsorption properties for nutrient release and reversible water retention. This is essential for the use of this material as a slow-release fertilizer that efficiently provides nutrients for the agroecological development of plants, as evidenced in the cultivation tests.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"381-395"},"PeriodicalIF":2.7,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12951318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147347145","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}

{"title":"Ferroelectric nanodot reservoir for neuromorphic computing.","authors":"Anna Razumnaya, Yuri Tikhonov, Dmitrii Naidenko, Léo Boron, Valerii Vinokur, Igor Lukyanchuk","doi":"10.3762/bjnano.17.24","DOIUrl":"https://doi.org/10.3762/bjnano.17.24","url":null,"abstract":"<p><p>We present a ferroelectric-based data reservoir designed for neuromorphic computing applications. The reservoir consists of an ensemble of nonlinear ferroelectric nanodots capable of storing information through their stable polarization states. These nanodots are confined between electrodes and form a network of parallel connected capacitive elements, which can either be addressed individually or integrated between common conducting plates. By leveraging the intrinsic nonlinearity and memory of ferroelectric polarization switching, the device maps incoming signals into a high-dimensional space of polarization configurations. This physical transformation enables efficient temporal information encoding and provides a rich dynamic representation for subsequent processing in a readout layer of a neuromorphic circuit.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"352-364"},"PeriodicalIF":2.7,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12927483/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147281939","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}

{"title":"Polycatecholamine nanocoatings on stainless steel: the effect on attachment of human fibroblasts and platelets.","authors":"Paulina Trzaskowska, Ewa Rybak, Maciej Trzaskowski, Kamil Kopeć, Jakub Krzemiński, Rafał Podgórski, Hatice Genc, Mehtap Civelek, Iwona Cicha","doi":"10.3762/bjnano.17.25","DOIUrl":"https://doi.org/10.3762/bjnano.17.25","url":null,"abstract":"<p><p>Polydopamine (PDA) is widely used to functionalize materials and enhance cell attachment. At the same time, the potential of the dopamine precursor tyrosine in its polymerized form (polytyrosine, PTYR) remains underexplored despite its biological activity. In this study, we developed nanostructured PDA and PTYR layers on stainless steel 316L via a novel in situ oxidation process and evaluated their physicochemical properties and cellular interactions at the nano/microscale. Surface characterization revealed that the polymeric coatings formed a homogenous layer with distinct topographical features and thickness in the nanometer range for PTYR and in the micrometer range in case of PDA. Compared to PDA, PTYR coatings exhibited a nanoparticulate surface morphology and higher stability under physiological conditions. Wettability, roughness, and amine group density were systematically analyzed to determine their influence on interactions with fibroblasts and platelets. Our results show that PTYR nanocoatings significantly reduced platelet adhesion and activation, whereas PDA coatings, due to their higher primary amine content, could in some cases enhance platelet adhesion. Furthermore, fibroblast attachment was primarily influenced by coating roughness, with a specific threshold beyond which adhesion did not increase or was negatively impacted. These findings highlight the potential of engineered PTYR nanocoatings for developing advanced hemocompatible surfaces for biomedical implants.</p>","PeriodicalId":8802,"journal":{"name":"Beilstein Journal of Nanotechnology","volume":"17 ","pages":"365-380"},"PeriodicalIF":2.7,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12927489/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147281986","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}