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Enhanced electrochemical properties of NiS@CeO2 spherical nanoflakes
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100126
Indumati D. Yadav , Dineshkumar Yadav , Aleem Ansari , Shyamalava Mazumdar , Shivram S. Garje
{"title":"Enhanced electrochemical properties of NiS@CeO2 spherical nanoflakes","authors":"Indumati D. Yadav ,&nbsp;Dineshkumar Yadav ,&nbsp;Aleem Ansari ,&nbsp;Shyamalava Mazumdar ,&nbsp;Shivram S. Garje","doi":"10.1016/j.nxnano.2024.100126","DOIUrl":"10.1016/j.nxnano.2024.100126","url":null,"abstract":"<div><div>Herein we report synthesis of bare cerium oxide nanoparticles from cerium hydroxide and NiS@CeO<sub>2</sub> nanocomposite (NC) from nickel cinnamaldehyde thiosemicarbazone complex (single source molecular precursor) and CeO<sub>2</sub> nanoparticles by solvothermal method using ethylene glycol as a capping agent. These materials were characterized using powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, high resolution transmission electron microscopy and energy dispersive X-ray techniques. The crystallite size of the composite nanoparticles calculated using XRD is 17.99 nm. TEM shows spherical shape morphology of NiS@CeO<sub>2</sub> nanocomposite with average particle size less than 10 nm. Electrochemical properties of bare CeO<sub>2</sub> and NiS@CeO<sub>2</sub> NC electrodes were evaluated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy. The electrochemical measurements show that the capacitance value of NiS@CeO<sub>2</sub> NC electrode is significantly higher (707.84 F g<sup>−1</sup>) compared to bare CeO<sub>2</sub> electrode (80.91 F g<sup>−1</sup>) at current density 1 A g<sup>−1</sup>. This can be attributed to synergistic effect in nanocomposite. The cycle stability of NiS@CeO<sub>2</sub> NC electrode was found to be 98.41 % even after 6000 charge–discharge cycles at 2 A g<sup>−1</sup> current density.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146406","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 comprehensive review on the synthesis methods and applications of silicon quantum dots (SiQDs)
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100144
Ruonan Li , Jian Xu , Xiqiong Mu , Fankui Zeng
{"title":"A comprehensive review on the synthesis methods and applications of silicon quantum dots (SiQDs)","authors":"Ruonan Li ,&nbsp;Jian Xu ,&nbsp;Xiqiong Mu ,&nbsp;Fankui Zeng","doi":"10.1016/j.nxnano.2025.100144","DOIUrl":"10.1016/j.nxnano.2025.100144","url":null,"abstract":"<div><div>Since the discovery of SiQDs, they have attracted extensive attention from researchers due to their good biocompatibility, unique optical properties, low cost and good stability. Doping or surface modification has enabled SiQDs to achieve faster, cheaper, and more reliable applications in areas such as detection, photocatalysis, and bioimaging. Despite extensive research, there is still a need to overcome the problems of large-scale industrialized production and to improve the performance in terms of quantum yield and stability. This paper reviews five methods of synthesizing SiQDs and their current applications in four fields, as well as future research directions, highlighting the potential of SiQDs in advancing nanotechnology and its commercial viability.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453537","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
In situ template synthesized silver nanoparticulate banana fibre materials with antimicrobial and antibiotic release properties: Efficacy evaluation in ex vivo wound infection model
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100134
Pompi Das , Debajit Mahanta , Sharmila Giogi , Tarh Kaha , Ngurang Nisha , Sanjeeb Kalita
{"title":"In situ template synthesized silver nanoparticulate banana fibre materials with antimicrobial and antibiotic release properties: Efficacy evaluation in ex vivo wound infection model","authors":"Pompi Das ,&nbsp;Debajit Mahanta ,&nbsp;Sharmila Giogi ,&nbsp;Tarh Kaha ,&nbsp;Ngurang Nisha ,&nbsp;Sanjeeb Kalita","doi":"10.1016/j.nxnano.2025.100134","DOIUrl":"10.1016/j.nxnano.2025.100134","url":null,"abstract":"<div><div>This study reports the <em>in-situ</em> template synthesis of silver nanoparticles (SNPs) within banana fibres (BF), non-woven sheets (BFS), and microparticles (BFM), yielding multifunctional biocomposites with broad-spectrum antimicrobial properties and controlled antibiotic release capabilities. The prepared SNPs exhibited a uniform size distribution with an average diameter of 12.6 ± 2.4 nm, confirmed through field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDX). Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) analysis indicated strong interactions between the banana fibre matrix and SNPs, with characteristic peaks at 1384 and 1612 cm⁻¹ corresponding to the Ag-O bonds. Thermogravimetric analysis (TGA) revealed enhanced thermal stability, with BFS-SNP showing a 25 % improvement in decomposition onset temperature compared to pristine BFS. Mechanical testing demonstrated improved tensile strength in SNP-modified sheets (21.5 ± 0.8 MPa) compared to untreated sheets (16.8 ± 0.7 MPa), highlighting the reinforcement effect of SNP integration. The biocomposites exhibited potent antibacterial activity against <em>Escherichia coli</em>, <em>Staphylococcus aureus</em>, and methicillin-resistant <em>Staphylococcus aureus</em> (MRSA), with inhibition zones ranging from 18.5 ± 1.2 mm to 22.3 ± 1.1 mm. Controlled release studies of amoxicillin-loaded composites demonstrated sustained drug release over 72 hours, achieving a cumulative release of 81.6 % in BFS-SNP-AMOX. Cytotoxicity assessment on L929 fibroblasts confirmed the biocompatibility of the composites, with cell viabilities exceeding 90 %. These findings establish BF-SNP, BFS-SNP, and BFM-SNP as promising candidates for antimicrobial wound care applications and controlled drug delivery systems, offering a sustainable, bioresource-based solution for advanced biomedical materials.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377255","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
Fabrication of Ag@AuNPs embedded h-BN Langmuir-Blodgett film as SERS active platform for trace detection of fungicide in solution and in grape skin
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100153
Chayan Kumar Mitra, Joydeep Chowdhury
{"title":"Fabrication of Ag@AuNPs embedded h-BN Langmuir-Blodgett film as SERS active platform for trace detection of fungicide in solution and in grape skin","authors":"Chayan Kumar Mitra,&nbsp;Joydeep Chowdhury","doi":"10.1016/j.nxnano.2025.100153","DOIUrl":"10.1016/j.nxnano.2025.100153","url":null,"abstract":"<div><div>The work explicitly focuses on fabrication of Langmuir-Blodgett (LB) films of hexagonal Boron Nitride (h-BN) with infused gold-core silver-shell nano particles (Ag@Au nano particles) as an efficient noble Surface enhanced Raman Scattering (SERS) active hetero-architecture. The “hot spots” generated over the h-BN network work as an effective contributor for localization of electromagnetic field shows high enhancement in Raman Signals. The LB film and the as prepared substrate were meticulously characterized in this current work. The efficacy and reproducibility of Ag@Au-hBN nano-plate substrate as a SERS detection sensor was investigated up to ultrasensitive concentrations using Raman probe molecules. The as prepared SERS substrate was also engaged for detection of fungicide Thiabendazole at trace concentrations. The tests to check on shelf life was also performed. In the contemporary study the as fabricated SERS sensing platform elicits its precision and effectiveness as a potent next generation one-click SERS sensing chip in detecting fungicide. Thus, in future this substrate can be a novel SERS scaffold for ultrasensitive detections of chemical and bio-chemical composites.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100153"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592963","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
Nanomaterials-based Field Effect Transistor biosensor for cancer therapy
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100170
Silpa Sasikumar , Kishore Sivaram , N. Sreejisha , Selvakumar Murugesan
{"title":"Nanomaterials-based Field Effect Transistor biosensor for cancer therapy","authors":"Silpa Sasikumar ,&nbsp;Kishore Sivaram ,&nbsp;N. Sreejisha ,&nbsp;Selvakumar Murugesan","doi":"10.1016/j.nxnano.2025.100170","DOIUrl":"10.1016/j.nxnano.2025.100170","url":null,"abstract":"<div><div>Biosensors made of nanomaterials play a prominent part in diagnostic applications in the biomedical domain. The peculiar characteristics of nanomaterials including quantum effects, self-assembly, and larger surface area make them an irresistible choice for biomedical applications. Cancer is one of the life-threatening diseases across the world and the second leading cause of death. Early diagnosing has its advantages, such as treating the cancer in the primary stage helps in the faster recovery of patients. Many enzymatic/protein assays and biosensors have been developed for early-stage cancer diagnosis. Despite many types of biosensors available for biosensing applications, Field Effect Transistor biosensors (FET) prove to be an excellent choice due to their minimalistic size, high versatility, low noise, and high reliability for detecting a life-threatening disease cancer. FETs made of nanomaterials can provide sensitive, specific, and precise detection of cancer biomarkers, assisting cancer diagnosis in its early stages. Certain significant factors like selectivity, anti-interference, sensitivity, reproducibility, reusability, disposability, economic viability, large-scale production, and operational conditions determine the efficiency of the FET biosensor in diagnosing cancers. Many works are being carried out to meet the above demands for FET-based biosensors. Various nanomaterials are employed to fabricate the FET, and their performances are so incredible. This review provides insight into various nanotechnology-based FET biosensors such as Graphene Carbon Dots-based FET, Carbon nanotubes (CNT)-based FET, Silicon nanowire-based FET, Polycrystalline Si nanowire-based FET, Graphene Oxide-based FET, Indium Selenide (InSe)-based FET, Molybdenum disulfide (MoS<sub>2</sub>)-based FET, Zinc oxide (ZnO)-based FET, Tungsten diselenide (WSe<sub>2</sub>)-based FET, MXene-based FET, and nanocomposites-based FET. Subsequently, their applications in early cancer diagnosis are also comprehensively discussed including their various fabrication approaches for binding different bioreceptors such as enzymes, cells, aptamers, deoxyribonucleic acid (DNA) and antibodies followed by targeting the specific analyte of cancer cells.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100170"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrothermal synthesis of nitrogen-doped CQDs for detection of Cr6+ and removal of MB dye in wastewater
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100150
Aysenur Aygun , Nihed Bennini , Rima Nour Elhouda Tiri , Idris Kaynak , Fatih Sen
{"title":"Hydrothermal synthesis of nitrogen-doped CQDs for detection of Cr6+ and removal of MB dye in wastewater","authors":"Aysenur Aygun ,&nbsp;Nihed Bennini ,&nbsp;Rima Nour Elhouda Tiri ,&nbsp;Idris Kaynak ,&nbsp;Fatih Sen","doi":"10.1016/j.nxnano.2025.100150","DOIUrl":"10.1016/j.nxnano.2025.100150","url":null,"abstract":"<div><div>Research has demonstrated the feasibility of synthesizing nitrogen-doped carbon quantum dots (CQDs) without the passivation or oxidation chemicals. Given that lemon peels are a rich, renewable carbon source and a common agricultural waste and that these peels are readily available, we chose to use them to prepare fluorescent CQDs to detect metal ions. Synthesis of N-CQDs using biowastes appears to be an environmentally friendly, fast, and efficient method. N-CQDs are preferred for sensing applications due to their various characteristic properties. N-CQDs are important for fluorescent sensors since they produce strong fluorescence emissions. In addition, since N-CQDs have high water solubility, they can work without any problems in biological and environmental sensing in aqueous solutions. The surface composition of N-CQDs was determined by Fourier transform infrared (FTIR) analysis and electronic transitions by UV–visible (UV-Vis) analysis. The morphology and average size of N-CQDs were determined by transmission electron microscope (TEM). In TEM analysis, the average particle size of the nanoparticles was determined to be 5.96 nm. N-CQDs were tested for heavy metal determination and exhibited a low detection limit of 19.37 µM for Cr<sup>6+</sup>. N-CQD exhibited 85.73 % photocatalytic activity for the degradation of methylene blue (MB) under visible light. The development of lemon peel-based N-CQDs has significant potential in environmental protection through the treatment of wastewater contaminated with MB dyes and the detection of Cr<sup>6+</sup> metal ions.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100150"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551423","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
Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100141
Joana Santos , Jorge Carvalho Silva , Manuel A. Valente , Tânia Vieira , Paula I.P. Soares
{"title":"Enhancing magnetic hyperthermia: Investigating iron oxide nanoparticle coating and stability","authors":"Joana Santos ,&nbsp;Jorge Carvalho Silva ,&nbsp;Manuel A. Valente ,&nbsp;Tânia Vieira ,&nbsp;Paula I.P. Soares","doi":"10.1016/j.nxnano.2025.100141","DOIUrl":"10.1016/j.nxnano.2025.100141","url":null,"abstract":"<div><div>Cancer treatment research focuses on overcoming the limitations of conventional treatment methods, especially in addressing treatment-resistant malignancies. Magnetic hyperthermia (MH) is an innovative approach that uses superparamagnetic iron oxide nanoparticles (SPIONs) to increase the temperature locally, triggering cancer cell death. However, challenges related to the SPIONs coating impact their stability and MH heating mechanism, hindering its clinical adoption. This work explores diverse SPIONs coating options - oleic acid (OA), dimercaptosuccinic acid (DMSA), and (3-aminopropyl)triethoxysilane (APTES), to improve SPIONS stability under storage while keeping their heating capacity. OA- and DMSA-coated SPIONs, both negatively charged NPs, exhibited similar behavior in protein corona formation and MH tests. The heating capacity of the three types of SPIONs was maintained after 1 month of storage; however, these values significantly decreased to about 60 % of the initial value after 6 months. APTES-coated SPIONs displayed higher protein corona formation, mainly related to the positively charged surface. Interaction studies with three cell lines (fibroblasts, melanoma, and macrophages) revealed enhanced internalization of APTES-coated SPIONs. Only APTES-coated SPIONs achieved therapeutic temperatures in MH assays, reducing melanoma cell viability significantly. The study underscores the importance of nanoparticle surface modifications and the complexity of factors influencing treatment efficacy. Further research is essential for a better understanding of the cell death mechanism induced by MH and for its clinical translation.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143305669","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
Nanoparticles assisted drug delivery for effective management of Glioblastoma
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100137
Mansi Damani , Nagesh Nilawar , Munira Momin , Raghumani Singh Ningthoujham , Tabassum Khan
{"title":"Nanoparticles assisted drug delivery for effective management of Glioblastoma","authors":"Mansi Damani ,&nbsp;Nagesh Nilawar ,&nbsp;Munira Momin ,&nbsp;Raghumani Singh Ningthoujham ,&nbsp;Tabassum Khan","doi":"10.1016/j.nxnano.2025.100137","DOIUrl":"10.1016/j.nxnano.2025.100137","url":null,"abstract":"<div><div>Glioblastoma multiforme (GBM) is one of the most aggressive forms of primary brain tumor with a dire prognosis due to its heterogeneity, invasive nature, and resistance to conventional therapies. Standard treatments, including surgery, radiotherapy, and chemotherapy with temozolomide (TMZ), are often limited by the ability of the tumor to circumvent therapeutic effects and by the physiological barriers that restrict drug delivery to the brain parenchyma. Specifically, the blood-brain barrier (BBB) and the blood-brain tumor barrier (BBTB) impede the effective concentration of therapeutic agents within the brain, posing a significant challenge in treating GBM. The primary focus of current research has pivoted towards nanotechnology to address these limitations. Due to their size, surface modifications, and capability to encapsulate drugs, nanocarriers like polymeric, metallic, and lipid nanoparticles have shown potential in enhancing the penetration of anticancer agents across the BBB and BBTB, thus increasing treatment efficacy and minimizing general toxicity. Moreover, lipid-based nanoparticles, such as solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs), offer advantages in drug encapsulation, stability, and controlled release metal nanoparticles, including gold and silver nanoparticles, provide unique properties for imaging and photothermal therapy, potentially augmenting the efficacy of conventional treatments. This review elucidates the mechanisms by which nanocarriers cross the BBB and BBTB, emphasizing the importance of physicochemical properties such as size, charge, and surface functionality. The integration of nanotechnology in GBM treatment highlights the potential for nanoparticles to revolutionize drug delivery systems, overcoming the inherent challenges posed by the BBB and the tumor microenvironment. The promise of nanomedicine advances in this field could lead to more effective therapeutic strategies, significantly impacting patient outcomes in GBM management.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146414","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
Marginal-zone B cells as promising targets of an mRNA-loaded, lipid-nanoparticle cancer vaccine 边缘区 B 细胞有望成为载入 mRNA 的脂质纳米粒子癌症疫苗的靶点
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100154
Yuichi Suzuki , Mai Yakuwa , Mina Sato , Eleni Samaridou , Moritz Beck-Broichsitter , Masatoshi Maeki , Manabu Tokeshi , Yuma Yamada , Hideyoshi Harashima , Yusuke Sato
{"title":"Marginal-zone B cells as promising targets of an mRNA-loaded, lipid-nanoparticle cancer vaccine","authors":"Yuichi Suzuki ,&nbsp;Mai Yakuwa ,&nbsp;Mina Sato ,&nbsp;Eleni Samaridou ,&nbsp;Moritz Beck-Broichsitter ,&nbsp;Masatoshi Maeki ,&nbsp;Manabu Tokeshi ,&nbsp;Yuma Yamada ,&nbsp;Hideyoshi Harashima ,&nbsp;Yusuke Sato","doi":"10.1016/j.nxnano.2025.100154","DOIUrl":"10.1016/j.nxnano.2025.100154","url":null,"abstract":"<div><div>Combining mRNA-based cancer vaccines and lipid nanoparticles (LNPs) is a highly versatile and effective delivery technology that achieves efficient mRNA delivery to antigen-presenting cells (APCs). Marginal zone B (MZB) cells have been recognized as a promising APC target for cancer vaccines. However, no report has yet introduced a carrier that could efficiently deliver mRNA to MZB cells; hence, their potential as a target for cancer vaccines has yet to be demonstrated. In this study, we describe our application of an LNP formulation containing 15 mol% DSPC (15%DSPC) as a systemically administered cancer vaccine. The 15%DSPC selectively delivered mRNA to MZB cells, and the MZB cells subsequently accumulated in splenic follicles, which suggests a concentration of antigen proteins in the follicles. In addition, the delivery of antigen-coding mRNA to MZB cells induced MZB cell-specific major histocompatibility complex class I antigens, which was followed by cytotoxic T lymphocyte responses. Furthermore, with no signs of significant toxicity, 15%DSPC shows an anti-tumor effect that is equal to, or perhaps even better than, mRNA cancer vaccines that target dendritic cells in clinical trials. In summary, the results of this study demonstrate the efficacy of using an LNP formulation to target splenic MZB cells as a cancer vaccine. Antigen presentation and cellular immune responses were induced in an MZB cell-dependent manner, which proves that mRNA-based cancer vaccines could be effective at targeting MZB cells as APCs.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100154"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629028","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
Impact of transition metal dopants (V, Nb, and Ta) on armchair and chiral structured gallium nitride (Ga30N30) nanotubes: A comprehensive DFT study
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100155
Bonganur Khan , Aoly Ur Rahman , Md Masud Alam , Noor Ahammad , Md. Alamgir Kabir , Md. Kabir Uddin Sikder
{"title":"Impact of transition metal dopants (V, Nb, and Ta) on armchair and chiral structured gallium nitride (Ga30N30) nanotubes: A comprehensive DFT study","authors":"Bonganur Khan ,&nbsp;Aoly Ur Rahman ,&nbsp;Md Masud Alam ,&nbsp;Noor Ahammad ,&nbsp;Md. Alamgir Kabir ,&nbsp;Md. Kabir Uddin Sikder","doi":"10.1016/j.nxnano.2025.100155","DOIUrl":"10.1016/j.nxnano.2025.100155","url":null,"abstract":"<div><div>Recently nanotubes have drawn the attention of researchers because of their unique properties such as fast response, high sensitivity, small size, exceptional electron mobility, significant heat capacity, and voltage characteristics suitable for various technological applications. Owing to the success of former studies of different group III-V binary nanotubes, this study has been performed by using density functional theory (DFT) with the B3LYP functional and LanL2DZ basis set in Gaussian 09 to explore the impact of transition metals (TMs) Vanadium (V), Niobium (Nb), and Tantalum (Ta) on structural, electrical, thermodynamic, and optical properties of two different variants- armchair and chiral structured GaNNTs (Ga<sub>30</sub>N<sub>30</sub>) to understand their comparative behavioral changes. The study reveals that doping GaNNTs with V, Nb, and Ta significantly enhances structural stability, especially when replacing the Ga atom. This improved structural stability suggests the potential for tailoring their electronic and mechanical properties. Again, in the case of Nb doping, replacing the N atom increases surface area and enhances reactivity, indicating its potential application in sensor development. Moreover, IR spectroscopy predicts the possibility of the natural existence of energetic favorability of all dopant-modified nanotubes with distinct vibrational signatures. The electronic properties suggest armchair (3, 3) systems especially, Ga<sub>29</sub>N<sub>30</sub>-Nb and Ga<sub>29</sub>N<sub>30</sub>- Ta, possess bandgaps suitable for replacing silicon-based electronics. On the other hand, the chiral (5, 3) Ga<sub>30</sub>N<sub>30</sub> systems, exhibit metallic or near-metallic behavior with a bandgap of 0.2–0.4 eV, opening new avenues for material design. Also, the thermodynamic study demonstrates a correlation between Ga-site substitution and increased exothermicity during doping. Furthermore, the armchair (3, 3) Ga<sub>30</sub>N<sub>30</sub> systems exhibit higher structural ordering after doping than the chiral (5, 3) Ga<sub>30</sub>N<sub>30</sub> systems. Additionally, distinct UV-Vis absorption characteristics observed for both armchairs (3, 3) Ga<sub>30</sub>N<sub>30</sub>, and Ga<sub>30</sub>N<sub>29</sub>-Ta indicate their promising potential for optoelectronic, photodetectors, and photovoltaic applications. Considering all factors, armchair (3, 3) pristine and doped nanotubes have the potential for real-world applications, particularly in emerging technologies like supercapacitors, optoelectronic sensors, gas sensing devices, biosensors, and energy storage devices.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100155"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682830","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}
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