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Hybrid Li-rich cathodes for anode-free lithium metal batteries 用于无阳极锂金属电池的混合富锂正极
Next Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.nxnano.2024.100114
Chunxi Tian , Kun Qin , Tingting Xu , Liumin Suo
{"title":"Hybrid Li-rich cathodes for anode-free lithium metal batteries","authors":"Chunxi Tian ,&nbsp;Kun Qin ,&nbsp;Tingting Xu ,&nbsp;Liumin Suo","doi":"10.1016/j.nxnano.2024.100114","DOIUrl":"10.1016/j.nxnano.2024.100114","url":null,"abstract":"<div><div>Anode-free lithium metal batteries (AFLMBs) are expected to achieve high energy density without Li anode. However, their capacities are fading quickly due to the lack of excessive Li resources from the anode side (N/P=0). Previously, cathode pre-lithiation to supplement excess Li in NCM811 was proven feasible to extend the battery lifespan of AFLMB, but deep lithiation suffers from crystal structure damage, resulting in short cycle life. Here, we proposed a hybrid Li-rich cathode by pre-lithiation of spinel structure material LiMn<sub>2</sub>O<sub>4</sub> instead of Li-rich NCM compositing with NCM811, providing a new way to extend the lifespan of AFLMBs. During the first charge process, Li<sub>2</sub>Mn<sub>2</sub>O<sub>4</sub>, as a pre-lithiation reagent, releases excess Li to form a lithium layer on the anode and revert to LiMn<sub>2</sub>O<sub>4,</sub> maintaining stable electrochemical reversibility in the following cycles. The anode-free lithium metal pouch cell employing a Li-rich hybrid cathode achieves a high energy density of nearly 400 Wh kg<sup>−1</sup> with 80 % capacity retention after 50 cycles.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strategies for high performance characterization of nanomaterials using in situ liquid cell transmission electron microscopy 利用原位液胞透射电子显微镜对纳米材料进行高性能表征的策略
Next Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.nxnano.2024.100115
Honglin Lv, Wei Si, Jingjie Sha, Yunfei Chen, Yin Zhang
{"title":"Strategies for high performance characterization of nanomaterials using in situ liquid cell transmission electron microscopy","authors":"Honglin Lv,&nbsp;Wei Si,&nbsp;Jingjie Sha,&nbsp;Yunfei Chen,&nbsp;Yin Zhang","doi":"10.1016/j.nxnano.2024.100115","DOIUrl":"10.1016/j.nxnano.2024.100115","url":null,"abstract":"<div><div>With advances in liquid cell transmission electron microscopy (LCTEM), it is possible to real-time characterize nanomaterials at atomic resolution in a liquid environment. This provides a key tool for understanding the underlying mechanisms of various of (bio)chemical processes. In this review, various of strategies employed in high performance LCTEM characterization are introduced. It presents the structure and manufacturing processes of different liquid cells, and summarizes the methods to improve the spatial resolution and reduce the irradiation damage of LCTEM. It also describes the liquid cells integration with external energy field for observing the dynamic response of nanomaterials under electrical, thermal or irradiating stimuli. Then recent advances in LCTEM images and data automated analysis by machine learning are highlighted. Finally, we present a perspective on the challenges and future directions for the development of <em>in situ</em> LCTEM.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New insights on physicochemical features and toxicological outcome provided from incineration of nanocomposites 焚烧纳米复合材料对物理化学特征和毒理学结果的新认识
Next Nanotechnology Pub Date : 2024-10-21 DOI: 10.1016/j.nxnano.2024.100113
Claire Longuet , Carine Chivas-Joly , Nora Lambeng , Valérie Forest , Lara Leclerc , Gwendoline Sarry , Jérémie Pourchez , José-Marie Lopez-Cuesta
{"title":"New insights on physicochemical features and toxicological outcome provided from incineration of nanocomposites","authors":"Claire Longuet ,&nbsp;Carine Chivas-Joly ,&nbsp;Nora Lambeng ,&nbsp;Valérie Forest ,&nbsp;Lara Leclerc ,&nbsp;Gwendoline Sarry ,&nbsp;Jérémie Pourchez ,&nbsp;José-Marie Lopez-Cuesta","doi":"10.1016/j.nxnano.2024.100113","DOIUrl":"10.1016/j.nxnano.2024.100113","url":null,"abstract":"<div><div>This study focuses on research in the area of \"nanomaterials in waste\" and shows the difficulty of providing quantitative data on nanomaterials in different wastes. As highlighted in the ECHA report (November 2021) and although substantial progress have been made in the characterization and measurement of nanomaterials, some challenges remain, particularly the characterization of nanomaterials in complex media. Therefore, work to improve the detection, characterization, and quantification of nanomaterials should be continued to complete the database with different types of nanowaste mixtures. The dominant end-of-life scenario for nanocomposites is the incineration. The environmental by-products impact on the soil and air have been considered from the point of view of nanoparticles partitioning and the potential toxicological synergistic effects. A specific management of nanocomposites end-of-life should be implemented as recommended by the Organization for Economic Co-operation and Development (OECD) in order to limit nanoparticles dissemination by landfilling and particularly in incineration facilities where their presence is significantly increasing. The aim of our study was to expand the current knowledge of the partition of nanowaste, mainly in case of nanocomposites mixture, and the potential synergetic or antagonistic impact of potential hazardous nanowastes on the toxicological profile. Incineration products of ethylene-vinyl acetate copolymer (EVA) and polydimethylsiloxane (PDMS) nanocomposites containing both silica and precipitated calcium carbonate, corresponding to cable sheaths compositions, were investigated in this study, using a lab-scale incineration process. Soot and residue composition were analysed using various relevant experimental techniques in order to assess the presence of initial nanoparticles. <em>In vitro</em> toxicological assessments were carried out and have shown that only pro-inflammatory responses seem to be affected by the presence of nanoparticles. SiO<sub>2</sub> nanoparticles appear to have a major impact on toxicity whatever the partitioning in soot or residue. Conversely, CaCO<sub>3</sub> as expected does not impact the nanowaste toxicity and does not seem able to mitigate the SiO<sub>2</sub> toxicity.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanofiberous composite with CuO-Ag0 supported on bamboo/lycra for protection against transmittable infectious diseases 在竹子/岩棉上添加 CuO-Ag0 的纳米纤维复合材料,用于预防可传播的传染病
Next Nanotechnology Pub Date : 2024-10-07 DOI: 10.1016/j.nxnano.2024.100108
Abdul Wahab Jatoi , Faisal Ahmed Memon , Muhammad Ishaque Abro
{"title":"Nanofiberous composite with CuO-Ag0 supported on bamboo/lycra for protection against transmittable infectious diseases","authors":"Abdul Wahab Jatoi ,&nbsp;Faisal Ahmed Memon ,&nbsp;Muhammad Ishaque Abro","doi":"10.1016/j.nxnano.2024.100108","DOIUrl":"10.1016/j.nxnano.2024.100108","url":null,"abstract":"<div><div>The transmittable infectious diseases, detrimental environmental contaminants and harmful UV radiations remained constant threat to human civilization. C<em>old, pneumonia, tuberculosis bacteria, rubella virus, RSV and COVID19, then urban and industrial emissions,</em> volcanic eruptions, pollen, aerosols on one hand and skin cancer, sunburn, premature ageing and skin tanning on the other hand are some of the examples of serious risks to health, safety and well-being. The WHO reported over 7million worldwide deaths due to hazardous air contaminants. Exploiting the tremendous features of nanofiberous structure and excellent microbiocidal properties of Ag<sup>0</sup> and CuO nanoparticles, a sustainable and stable nanofiber based composite Bmb-nanoNP was developed. Utilization of biocompatible, biodegradable, nontoxic and environmental friendly polymers enabled the composite as sustainable source for protective clothing purposes. The microparticulate filtration of Bmb-nanoNP was 99.13 % and 96 % with and without air suction respectively. The microbiocidal affect against <em>E. coli</em> and <em>S. aureus</em> strains was excellent(5.9 % and 8.86 % cell viabilities respectively). Similarly, the Bmb-nanoNP showed calculated UV protection factor (UPF) of 7954 (50 + rating).These characteristics demonstrated potential candidacy of the Bmb-nanoNP composite for multi-functional safety clothing applications.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 scalable exfoliating approach to achieve high-quality shell nanosheets with large lateral size and surface functionalization 实现大横向尺寸和表面功能化的高质量壳纳米片的可扩展剥离方法
Next Nanotechnology Pub Date : 2024-10-07 DOI: 10.1016/j.nxnano.2024.100112
Yuansen Liu , Qi Wu , Xinqing Zheng , Min Nie
{"title":"A scalable exfoliating approach to achieve high-quality shell nanosheets with large lateral size and surface functionalization","authors":"Yuansen Liu ,&nbsp;Qi Wu ,&nbsp;Xinqing Zheng ,&nbsp;Min Nie","doi":"10.1016/j.nxnano.2024.100112","DOIUrl":"10.1016/j.nxnano.2024.100112","url":null,"abstract":"<div><div>With rapid development of global marine aquaculture, large amounts of waste shellfish as an aquaculture by-product are generated after consumption. At present, waste seashell powder (WSP) as fillers mixed with polymers is a potentially efficient method to add-value recycle WSP, but the poorly compatibility and seriously agglomeration of WSP results in the low mechanical properties and then reduces the value of recycled shell-based products. In this study, a facile ball-milling exfoliation method with the assistance of polyethyleneimine (PEI) to exfoliate shell materials into high-quality shell nanosheets (SNs) is present. In this case, PEI macromolecular had dual function: it not only acted as a buffer between milling balls and WSP to prevent excessive breaking of the WSP, but also interacted with active bonds on the surface to functionalize the SNs. As a demonstration, the high quality SNs achieve an average lateral size of 414 nm and thickness of 5 nm. Furthermore, the grafting of hydroxyl and amine functional groups onto the SNs, along with the low surface energy of the resulting SNs, has the potential to enhance interfacial interactions with the polymer matrix, thus promoting the overall performance of shell-based composites. This work presents a green and scalable approach for the value-added recycling of waste seashells, offering a sustainable solution to address the environmental impact of aquaculture by-products.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring of magnetic phase: Co-doped SiC thin films grown by RF sputtering 磁性相的定制:通过射频溅射生长的掺杂碳化硅薄膜
Next Nanotechnology Pub Date : 2024-10-04 DOI: 10.1016/j.nxnano.2024.100110
Mukesh Kumar , Amit Kumar Singh , Ashwani Kumar , Rinku Kumar , Yogendra K. Gautam , Sarat Kumar Dash , Ramesh Chandra
{"title":"Tailoring of magnetic phase: Co-doped SiC thin films grown by RF sputtering","authors":"Mukesh Kumar ,&nbsp;Amit Kumar Singh ,&nbsp;Ashwani Kumar ,&nbsp;Rinku Kumar ,&nbsp;Yogendra K. Gautam ,&nbsp;Sarat Kumar Dash ,&nbsp;Ramesh Chandra","doi":"10.1016/j.nxnano.2024.100110","DOIUrl":"10.1016/j.nxnano.2024.100110","url":null,"abstract":"<div><div>In the present work, we investigate the influence of cobalt (Co) doping on the structural and magnetic properties of cobalt-doped silicon carbide (Co-SiC) thin films. The films were fabricated using DC/RF magnetron sputtering technique on Si (100) substrates at a temperature of 1200°C, with varying Co concentrations ranging from 5 to 16 at. (at%. X-ray diffraction (XRD) analysis unveiled the co-existence of CoSi<sub>2</sub> and SiC phases in all the thin films. Surface morphological study through atomic force microscopy (AFM) revealed the densely packed nature of the films. Field emission scanning electron microscopy (FE-SEM) study showed that particles are uniformly distributed at the surface of the substrate. According to UV measurements, the films have high transmittance in the visible range, and as Co concentration rises, transmittance decreases. A magnetic phase transition from superparamagnetic to ferromagnetic behavior occurred with Co content surpassing 8 at% in the SiC thin films. Moreover, an increase in coercivity was observed from 38 Oe to 316 Oe as the doping concentration increased from 10 to 16 at%. This study represents an exploration into the induction of ferromagnetism through moderate Co doping in SiC thin films.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural and morphological studies of non-covalent functionalization carbon nanotubes wrapped poly(3-hexylthiophene-2,5-diyl) nanocomposites 非共价官能化碳纳米管包裹聚(3-己基噻吩-2,5-二基)纳米复合材料的结构和形态研究
Next Nanotechnology Pub Date : 2024-10-03 DOI: 10.1016/j.nxnano.2024.100111
N. Abdullah , N.M. Nurazzi , I.P. Silverwood , S.K. Matam , S.Z.N. Demon , N.S.N. Sa'aya , N.A. Halim , K.W. Baharin
{"title":"Structural and morphological studies of non-covalent functionalization carbon nanotubes wrapped poly(3-hexylthiophene-2,5-diyl) nanocomposites","authors":"N. Abdullah ,&nbsp;N.M. Nurazzi ,&nbsp;I.P. Silverwood ,&nbsp;S.K. Matam ,&nbsp;S.Z.N. Demon ,&nbsp;N.S.N. Sa'aya ,&nbsp;N.A. Halim ,&nbsp;K.W. Baharin","doi":"10.1016/j.nxnano.2024.100111","DOIUrl":"10.1016/j.nxnano.2024.100111","url":null,"abstract":"<div><div>In this study, a simple and efficient non-covalent functionalization method was developed to introduce conducting polymer of P3HT onto pristine MWCNT and hydroxyl MWCNT surfaces without causing significant changes in electrical characteristics, especially if used as a sensing material. Electron microscopy (FE-SEM) and (HR-TEM) were used to examine the surface morphology of nanocomposites, which demonstrated that the MWCNTs were well wrapped by P3HT. EDX analysis showed interactions between MWCNT-OH and P3HT, with a higher sulfur content of 7.77 wt% from P3HT. Additionally, the diameters of both pristine MWCNT (24.46 nm) and MWCNT-OH (27.56 nm) increased significantly when they form nanocomposites (35.35 nm and 39.40 nm respectively). Further characterization of the produced P3HT-MWCNT nanocomposite was performed using FT-IR and Raman spectroscopy. It was discovered that MWCNTs were dispersed uniformly, with a substantial interaction between P3HT and MWCNTs. The introduction of malathion on the surface of the nanocomposites reveals interaction between P3HT and malathion via intermolecular hydrogen bonding of thiophene, as evidenced by inelastic neutron scattering (INS) spectroscopy, suggesting that the P3HT/MWCNT has the potential as a promising sensing material for organophosphate compounds detection.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 review of saponin-based nanocarriers for drug delivery 基于皂素的纳米载体给药综述
Next Nanotechnology Pub Date : 2024-10-02 DOI: 10.1016/j.nxnano.2024.100109
Pathy B. Lokole , Galilée G. Byamungu , Paulin K. Mutwale , Nadège K. Ngombe , Michel K. Mpuza , Virima Mudogo , Rui W.M. Krause , Christian I. Nkanga
{"title":"A review of saponin-based nanocarriers for drug delivery","authors":"Pathy B. Lokole ,&nbsp;Galilée G. Byamungu ,&nbsp;Paulin K. Mutwale ,&nbsp;Nadège K. Ngombe ,&nbsp;Michel K. Mpuza ,&nbsp;Virima Mudogo ,&nbsp;Rui W.M. Krause ,&nbsp;Christian I. Nkanga","doi":"10.1016/j.nxnano.2024.100109","DOIUrl":"10.1016/j.nxnano.2024.100109","url":null,"abstract":"<div><div>Nanoparticles (NPs) have been extensively used as smart vehicles for the target delivery of therapeutic, immunotherapeutic, and diagnostic agents. The versatility of NPs applications partly arises from the possibility of manufacturing various NPs types depending on the nature of starting materials. In most cases, amphiphilic materials such as phospholipids, solid lipids, fatty acid derivatives, and blends of oils/surfactants, are used to make distinct NPs, namely liposomes, solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs), micelles, and nanoemulsions, respectively. In the pipeline of raw materials, saponins have emerged as a promising alternative for NPs formulation. Saponins are plant-derived secondary metabolites (phytochemicals) with excellent amphiphilic properties, which allow them to play crucial roles in nanotechnology, including their usage as reagents for micellar preparation as well as stabilizing agents for several NPs. Saponin-based NPs have been used to improve the solubility, and pharmacological profile of various active ingredients, encompassing vaccines, owing to inherent immunostimulant/adjuvant properties of saponins. In this review, we mainly discuss the state of the art in biomedical and pharmaceutical applications of saponin-containing NPs, focusing on using saponins as raw materials to make original NPs or as adjuvants for improving already established NPs. The physicochemical properties of saponins have been highlighted, before describing putative nano-formulations with huge promise for drug delivery and vaccine development. The opportunities and challenges pertaining to saponins-containing NPs have been pointed out to set the stage for establishing saponins as an intriguing raw material for the effective translational development of revolutionary nanomedicines.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Luminescence sensing of narcotic drugs by a BSA protein stabilized AuAgCd trimetallic nanocluster 用 BSA 蛋白稳定的 AuAgCd 三金属纳米簇对麻醉药物进行发光传感
Next Nanotechnology Pub Date : 2024-09-21 DOI: 10.1016/j.nxnano.2024.100107
Shashikana Paria, Prasenjit Maity
{"title":"Luminescence sensing of narcotic drugs by a BSA protein stabilized AuAgCd trimetallic nanocluster","authors":"Shashikana Paria,&nbsp;Prasenjit Maity","doi":"10.1016/j.nxnano.2024.100107","DOIUrl":"10.1016/j.nxnano.2024.100107","url":null,"abstract":"<div><p>A luminescent trimetiallic nanocluster (NCs) stabilized by BSA protein (AuAgCd-BSA) was synthesized along with its mono and bimetallic counterparts (Au-BSA and AuAg-BSA). The detail characterization and comparative luminescence sensing performance for narcotic drugs and psychotropic substance (amphetamine, morphine) were performed for these three clusters. It was revealed that the trimetallic cluster can detect amphetamine and morphine drugs through turn on luminescence response. The calculated binding constants are found to be <em>K</em><sub>a</sub> = 5.86× 10<sup>3</sup> M<sup>−1</sup> for Amphetamine and 3.75× 10<sup>3</sup> M<sup>−1</sup> for Morphine by using Benesi-Hildebrand equation. The trimetallic cluster also showed selective turn off luminescence response in presence of mercury (Hg<sup>2+</sup>) ions. The origin of the enhanced PL responses in presence of amphetamine and morphine was further investigated by exploring the PL lifetime decay studies, which reveals that larger excited state lifetime (in μs timescale) value of pristine cluster remain unchanged upon incremental addition of drugs leading to longer interaction time with the analytes. Thus, the present work undoubtedly establishes the superior drug sensing behaviour of AuAgCd-BSA tri-metallic NCs as compared to its mono-metallic and bi-metallic counterparts and open further emphasis on exploring luminescence-based sensing of narcotic drugs which has great forensic relevance.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000688/pdfft?md5=bcb9957161202b16e8e683a51dabcdaa&pid=1-s2.0-S2949829524000688-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface treatments with TiO2 nanostructures for bonding to zirconia materials as an alternative to conventional airborne-particle abrasion of the surface 用二氧化钛纳米结构对氧化锆材料进行表面处理,以替代传统的气载粒子表面磨削法
Next Nanotechnology Pub Date : 2024-09-16 DOI: 10.1016/j.nxnano.2024.100103
Constantino Fernandes-Neto , Erika Bronze-Uhle , Leonardo Francisco Gonçalves Dias , Fabio Antonio Piola Rizzante , Paulo Noronha Lisboa-Filho , Adilson Yoshio Furuse
{"title":"Surface treatments with TiO2 nanostructures for bonding to zirconia materials as an alternative to conventional airborne-particle abrasion of the surface","authors":"Constantino Fernandes-Neto ,&nbsp;Erika Bronze-Uhle ,&nbsp;Leonardo Francisco Gonçalves Dias ,&nbsp;Fabio Antonio Piola Rizzante ,&nbsp;Paulo Noronha Lisboa-Filho ,&nbsp;Adilson Yoshio Furuse","doi":"10.1016/j.nxnano.2024.100103","DOIUrl":"10.1016/j.nxnano.2024.100103","url":null,"abstract":"<div><p>Zirconia has become a popular choice for indirect restorations; however, adhesion to this material remains a challenge. The present study aimed to evaluate surface characteristics and bond strength to tetragonal Y-TZP and cubic Y-PSZ zirconia submitted to experimental surface treatments. Specimens of Y-TZP (T) and Y-PSZ (P) were prepared and divided into groups: Tf-A) thin TiO<sub>2</sub> film functionalized with 3-(aminopropyl)trimethoxysilane (APTMS); Tf) thin TiO<sub>2</sub> film; MNt-A) manual application of TiO<sub>2</sub> nanotubes with APTMS; MNt) manual application of TiO<sub>2</sub> nanotubes; VNt-A) vacuum application of TiO<sub>2</sub> nanotubes with APTMS; VNt) vacuum application of TiO<sub>2</sub> nanotubes; C) control with Al<sub>2</sub>O<sub>3</sub> sandblasting. Characterization with x-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) was done. Bond strength was evaluated by microshear bond strength (µSBS). Data were analyzed by two-way ANOVA and Tukey’s HSD tests (α = 0.05). XPS showed signals for elements O 1 s, Ti 2p, and Zr 3d 5/2. In addition, high-resolution demonstrated Ti-O-Si and Zr-O-Si bonding for treatments with TiO<sub>2</sub> and APTMS for T-Tf-A/P-Tf-A. SEM presented a homogeneous film for T-Tf/T-Tf-A/P-Tf/P-Tf-A and cluster formations for all nanotube groups. Control groups for both Y-TZP and Y-PSZ showed clear surfaces. No differences of µSBS were seen between experimental surface treatments and the controls, except for T-MNt-A/T-VNt-A/P-MNt-A/P-VNt-A, which showed the lowest mean µSBS and highest incidence of pre-test failures. Surface treatments with TiO<sub>2</sub> nanostructures were effective in modifying the surface of both zirconia materials evaluated, providing strong covalent bonds, changes to the surface topology, and shear bond strength comparable to conventional sandblasting protocols.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000640/pdfft?md5=e74ebd3b7feb0128513fbcdd9607b907&pid=1-s2.0-S2949829524000640-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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