Nano Trends最新文献_第4页

nano-HA and Gel improves mechanical performance and biomineralization of 3D-printed nano-HA/Gel/CMC bone scaffolds 纳米ha和凝胶提高了3d打印纳米ha /凝胶/CMC骨支架的力学性能和生物矿化

Nano Trends Pub Date : 2025-03-01 DOI: 10.1016/j.nwnano.2025.100097

Şule Arıcı , Alper Güven , Hatice Kaya , Fatih Erdem Baştan , Duygu Ege

{"title":"nano-HA and Gel improves mechanical performance and biomineralization of 3D-printed nano-HA/Gel/CMC bone scaffolds","authors":"Şule Arıcı , Alper Güven , Hatice Kaya , Fatih Erdem Baştan , Duygu Ege","doi":"10.1016/j.nwnano.2025.100097","DOIUrl":"10.1016/j.nwnano.2025.100097","url":null,"abstract":"<div><div>In 3D printing scaffolds for bone tissue engineering applications, obtaining high degree of printability and shape fidelity while maintaining sufficient mechanical support are important obstacles. To address this issue, in this study, carboxymethyl cellulose (CMC) is used as a viscosity enhancer to improve shape fidelity of 3D-printed hydroxyapatite (nano-HA)/ gelatin (Gel) constructs. nano-HA/Gel/CMC hydrogels were 3D printed with varying compositions, gelatin ratios of 7.5 % and 15 %, a constant CMC ratio of 7.5 %, and HA ratios of 10 % and 20 %. After the EDC/NHS (100 mM:20 mM) crosslinking procedure, the effects of nano-HA and Gel concentrations were investigated by Fourier Transform Infrared (FTIR) analysis, printability studies, mechanical analysis, water contact angle, % water uptake, % weigh loss and pH studies. Additionally, bioactivity, cell culture and biomineralization studies were conducted. The printability was reduced when 20 % HA was added due to swelling with addition of nano-HA. The results indicated that nano-HA addition and 15 % Gel highly improves the mechanical properties and the highest compressive strength reached 2.6 MPa for HA10/G15/C7.5. MC3T3-E1 pre-osteoblasts were attached and proliferated on all study groups. Alizarin red staining and SBF studies showed high bioactivity of the samples. According to the experimental results, 3D-printed nano-HA/Gel/CMC scaffolds show potential for bone tissue engineering.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100097"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551342","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

Role of annealing conditions on the resistive switching behavior of solution processed formamidinium lead bromide FaPbBr3 devices 退火条件对溶液处理甲醛溴化铅FaPbBr3器件阻性开关行为的影响

Nano Trends Pub Date : 2025-03-01 DOI: 10.1016/j.nwnano.2025.100100

Amrita Singh, Saumya Paliwal, Aditi Upadhyaya, Saral Kumar Gupta, C.M.S. Negi

{"title":"Role of annealing conditions on the resistive switching behavior of solution processed formamidinium lead bromide FaPbBr3 devices","authors":"Amrita Singh, Saumya Paliwal, Aditi Upadhyaya, Saral Kumar Gupta, C.M.S. Negi","doi":"10.1016/j.nwnano.2025.100100","DOIUrl":"10.1016/j.nwnano.2025.100100","url":null,"abstract":"<div><div>Hybrid organic-inorganic halide perovskites (OIHPs) are emerging as strong contenders for next-generation flexible nonvolatile memory systems due to their fascinating properties, including mixed ionic-electronic transport, high abundance, and cost-effective fabrication processes. This study investigates the impact of annealing the active layer on the resistive switching (RS) performance of FTO/formamidinium lead bromide (FAPbBr<sub>3</sub>)/Al devices. Devices were fabricated with the FAPbBr<sub>3</sub> layer annealed under different conditions: 50 °C for 10 min (Device D1), 60 °C for 20 min (Device D2), and 100 °C for 30 min (Device D3). Each device displayed distinct bipolar hysteresis in current-voltage (I-V) characteristics, with Device D2 displaying the most prominent hysteresis loop. X-ray diffraction (XRD) analysis identified that the FAPbBr<sub>3</sub> layer in Device D2 predominantly contained the FABr–PbBr<sub>2</sub>–DMF intermediate complex, resulting in a higher density of native defects. This increased defect density likely enhanced bromide ion migration, facilitating greater ionic accumulation at the interface, which contributed to the pronounced hysteresis loop. A model combining ionic transport and energy band modulation is proposed to elucidate the resistive switching (RS) mechanism in these devices. Capacitance-frequency (C–f) analysis further corroborated the highest interfacial charge accumulation for Device D2, reflected by its maximum accumulation capacitance. Additionally, the Device D2 exhibited the highest ionic conductivity, driving enhanced ion migration and accumulation at the interface, thereby enhancing the RS behavior. This work highlights the critical role of annealing in optimizing the RS performance, offering valuable insights for advancing perovskite-based RS device technologies.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100100"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576761","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

Biogas production using zirconium and zinc-based nanocatalysts and evaluation using a predictive modeling approach 使用锆和锌基纳米催化剂生产沼气，并使用预测建模方法进行评估

Nano Trends Pub Date : 2025-03-01 DOI: 10.1016/j.nwnano.2025.100098

Abbas A. Abdullahi , Mustapha D. Garba , Tawfik A. Saleh

{"title":"Biogas production using zirconium and zinc-based nanocatalysts and evaluation using a predictive modeling approach","authors":"Abbas A. Abdullahi , Mustapha D. Garba , Tawfik A. Saleh","doi":"10.1016/j.nwnano.2025.100098","DOIUrl":"10.1016/j.nwnano.2025.100098","url":null,"abstract":"<div><div>Anaerobic digestion (AD), a method of converting waste into energy, is commonly used in processing various organic wastes. It has been studied and recognized for its effectiveness. This study aimed to quantify the biogas yield from the catalytic co-digestion of rumen contents, and distilled water blended cow dung. This was achieved by fabricating biodigesters for the digestion of the contents. The study was carried out using nine identical digesters. For the biodigester without the catalyst (NC), that is control, the cumulative volume of gas produced during the study was 13,320 mL for 1:3. When 5 % w/w ZrO<sub>2</sub>, ZnO was added to the mixtures, the volume of gas increased drastically to 36,537 mL, and 21,944 mL respectively. The experimental dataset obtained after 33 days of the study was used in building the machine learning models. The best-performing model achieved during the training had a correlation coefficient between 0.9795 and 1 for the control, ZnO, and ZrO<sub>2</sub> catalytic loading, and the test correlation coefficient of the test datasets was between 0.9782 and 1. However, the Multilayer perceptron (MLP) model performed best in both the training and testing throughout the whole study having a Pearson correlation coefficient of 1. However, the study relied on a small test dataset of 11 entries. This study has opened possibilities to utilize anaerobic co-digestion technology not only for biogas generation but also to employ machine learning modeling for modeling and understanding anaerobic digestion from cow dung and rumen contents. Furthermore, it contributes to the sustainable development goals by offering an alternative energy source.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594081","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

Engineering PAMAM dendrimers for optimized drug delivery 工程PAMAM树状大分子优化药物传递

Nano Trends Pub Date : 2025-02-16 DOI: 10.1016/j.nwnano.2025.100094

Amin Aleebrahim Dehkordi , Shirin Mollazadeh , Amirreza Talaie , Mostafa Yazdimamaghani

{"title":"Engineering PAMAM dendrimers for optimized drug delivery","authors":"Amin Aleebrahim Dehkordi , Shirin Mollazadeh , Amirreza Talaie , Mostafa Yazdimamaghani","doi":"10.1016/j.nwnano.2025.100094","DOIUrl":"10.1016/j.nwnano.2025.100094","url":null,"abstract":"<div><div>Dendrimers, first introduced by Fritz Vögtle in 1978, have emerged as promising nanocarriers for drug delivery due to their unique branched architecture, large internal cavities, and numerous surface amine groups. These dendrimers efficiently load various drugs through electrostatic interactions, covalent bonding, or encapsulation, owing to their high density of terminal amine groups. However, the inherent cationic nature of PAMAM dendrimers can lead to cytotoxicity and limited systemic circulation due to interactions with negatively charged biomolecules. To address these limitations, surface modification strategies have been developed to enhance targeting, trigger controlled drug release, and decrease cytotoxicity. This review critically examines recent advancements in engineering PAMAM dendrimers for improved drug delivery, focusing on strategies to increase drug loading capacity, achieve tissue-specific targeting, reduce toxicity, and enable stimuli-responsive release. Furthermore, this review evaluates the challenges and future prospects of engineered PAMAM dendrimer-based drug delivery systems to provide a comprehensive roadmap for advancing these platforms in nanomedicine and targeted therapeutics.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454820","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 coolant performance using carbon nanoparticles as additives 使用碳纳米颗粒作为添加剂增强冷却剂性能

Nano Trends Pub Date : 2025-02-16 DOI: 10.1016/j.nwnano.2025.100093

Kailash Arole , Anubhav Sarmah , Joseph V. Kosmoski , Evan C. Johnson , Micah J. Green , Hong Liang

{"title":"Enhancing coolant performance using carbon nanoparticles as additives","authors":"Kailash Arole , Anubhav Sarmah , Joseph V. Kosmoski , Evan C. Johnson , Micah J. Green , Hong Liang","doi":"10.1016/j.nwnano.2025.100093","DOIUrl":"10.1016/j.nwnano.2025.100093","url":null,"abstract":"<div><div>The mixture of water and ethylene glycol (EG) as conventional coolants has been widely used in automobile radiators for decades. However, these heat-transfer fluids have low thermal conductivity and fail to fulfill the needs of upcoming high-speed and compact vehicles. Nanomaterial additives offer an opportunity to develop new coolants with improved thermal and physical performance. The feasibility of a new class of carbon-based nanomaterial as an additive for coolant is investigated in this work. Experiments were conducted to measure the effect of carbon nanoplatelets on the thermal conductivity, thermal diffusivity, specific heat, and viscosity of ethylene glycol-based coolants. The addition of carbon nanoplatelets into EG:water at a loading of 0.5 wt.% increased thermal conductivity and diffusivity by 15.7 % and 45.9 %, respectively. The addition of 0.5 wt.% of carbon nanoplatelets showed a viscosity drop of 16.6 %. This reduction in viscosity creates a smaller boundary layer, resulting in enhanced heat transfer and better performance. Thus, the improved thermophysical properties offered by this new class of carbon nanoparticles show promise for their use as an additive in coolants.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471295","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

Defining acceptance criteria for silver nanoparticles: correlating synthesis quality with biological outcomes in an In Vitro Lung Cancer Model 定义银纳米颗粒的接受标准：在体外肺癌模型中将合成质量与生物学结果相关联

Nano Trends Pub Date : 2025-02-14 DOI: 10.1016/j.nwnano.2025.100090

Bárbara Gomes , Marjorie Dardis Murucci , Wanderson de Souza , Beatriz Kopke Dal-Cheri , Ana Resende , Natália Yoshihara , Luths Geaquinto , José Mauro Granjeiro , Celso Sant'Anna , Leonardo Boldrini

{"title":"Defining acceptance criteria for silver nanoparticles: correlating synthesis quality with biological outcomes in an In Vitro Lung Cancer Model","authors":"Bárbara Gomes , Marjorie Dardis Murucci , Wanderson de Souza , Beatriz Kopke Dal-Cheri , Ana Resende , Natália Yoshihara , Luths Geaquinto , José Mauro Granjeiro , Celso Sant'Anna , Leonardo Boldrini","doi":"10.1016/j.nwnano.2025.100090","DOIUrl":"10.1016/j.nwnano.2025.100090","url":null,"abstract":"<div><div>Lung cancer remains a leading cause of cancer-related mortality worldwide, underscoring the need for innovative therapeutic strategies. This study explores the development and evaluation of silver nanoparticles (AgNPs) synthesized under optimized heating and cooling protocols to refine their physicochemical properties for antitumor applications. The AgNPs were synthesized using chemical synthesis using a reduction and bottom-up strategy. Eight synthesis protocols were optimized, and key parameters, such as particle size, morphology, and stability, were systematically characterized using UV–visible spectroscopy, dynamic light scattering, nanoparticle tracking analysis, and electron microscopy. Selected nanoparticles were evaluated for their cytotoxic effects on A549 lung adenocarcinoma cells, demonstrating dose- and time-dependent reductions in cell viability. Mechanistic insights revealed early apoptosis, assessed using flow cytometry by detecting phosphatidylserine externalization with Annexin V staining, propidium iodide uptake for membrane integrity, and lactate dehydrogenase release for cell damage. Surface coatings played a pivotal role, with citrate-stabilized AgNPs exhibiting rapid cytotoxicity and PVA-stabilized AgNPs showing sustained effects. This study underscores the importance of tailoring synthesis conditions to achieve reproducible and biologically effective AgNPs, providing a foundation for advancing nanotechnology-based cancer therapies.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100090"},"PeriodicalIF":0.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463875","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

Raster-Atomic force nanolithography: New insights towards the fabrication of 3D nanostructures on PMMA and Silicon Nitride 光栅-原子力纳米光刻：在PMMA和氮化硅上制造三维纳米结构的新见解

Nano Trends Pub Date : 2025-02-13 DOI: 10.1016/j.nwnano.2025.100088

Lorenzo Vincenti , Paolo Pellegrino , Isabella Farella , Mariafrancesca Cascione , Valeria De Matteis , Fabio Quaranta , Rosaria Rinaldi

{"title":"Raster-Atomic force nanolithography: New insights towards the fabrication of 3D nanostructures on PMMA and Silicon Nitride","authors":"Lorenzo Vincenti , Paolo Pellegrino , Isabella Farella , Mariafrancesca Cascione , Valeria De Matteis , Fabio Quaranta , Rosaria Rinaldi","doi":"10.1016/j.nwnano.2025.100088","DOIUrl":"10.1016/j.nwnano.2025.100088","url":null,"abstract":"<div><div>The rapid advancement of nanoscience has driven significant interest in manipulating materials at the nanoscale, a capability critical to diverse High-tech fields. Achievements in nanoscale analysis and nanofabrication have facilitated practical applications across a range of fields, including nanoelectronics, nanofluidics, drug delivery, optical and plasmonic devices, and biosensing. Nonetheless, conventional top-down fabrication techniques, such as electron beam lithography, focused ion beam lithography, soft lithography, and nanoimprint lithography, are frequently constrained by factors such as cost, scalability, and manufacturing complexity. Scanning Probe-based Lithography (SPL) has recently emerged as a promising alternative, offering precise nanostructure fabrication and immediate characterization in ambient conditions. This paper focuses on Raster-Atomic Force nanolithography (R-AFL), highlighting its capability for fabricating 3D nanostructures on Polymethyl methacrylate (PMMA) with minimal process steps. By coupling this technique with a simple wet etching process using Methyl Isobutyl Ketone (MIBK) and 2-propanol (IPA), enhanced resolution and quality of the nanostructure are achieved. Furthermore, the nanostructures are successfully transferred to a Silicon Nitride (Si<sub>x</sub>N<sub>y</sub>) substrate via plasma etching, demonstrating the versatility of the approach. This combination of AFM-based lithography, wet etching, and plasma transfer represents an innovative and efficient method for creating nanopatterned surfaces on both soft and hard substrates, addressing key limitations of conventional nanofabrication techniques.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100088"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454819","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

Berberine loaded glyceryl monooleate nanoparticles exhibited potent intrinsic anticancer activity against pancreatic cancer therapy: In vitro and in silico studies 含有小檗碱的单油酸甘油纳米颗粒对胰腺癌治疗表现出强大的内在抗癌活性：体外和硅研究

Nano Trends Pub Date : 2025-02-12 DOI: 10.1016/j.nwnano.2025.100092

Md․ Harun Al Rashid , Sweta Mishra , Saswati Pattnaik , Chandana Mohanty

{"title":"Berberine loaded glyceryl monooleate nanoparticles exhibited potent intrinsic anticancer activity against pancreatic cancer therapy: In vitro and in silico studies","authors":"Md․ Harun Al Rashid , Sweta Mishra , Saswati Pattnaik , Chandana Mohanty","doi":"10.1016/j.nwnano.2025.100092","DOIUrl":"10.1016/j.nwnano.2025.100092","url":null,"abstract":"<div><div>Berberine (BER) has emerged as a promising anticancer medication that can induce antiproliferative effects in several cancers, including pancreatic cancer. However, its clinical application is limited by poor solubility and bioavailability. To overcome these challenges, BER-loaded glyceryl monooleate nanoparticles (BER-GNPs) were developed to enhance its delivery and therapeutic efficacy. The synthesized BER-GNPs were characterized using dynamic light scattering (DLS), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR), which confirmed their favorable size, morphology, and stability. <em>In vitro</em> studies demonstrated that BER-GNPs significantly increased cytotoxicity and inhibited cell migration and invasion in pancreatic cancer cells (PANC-1) compared to native BER. Furthermore, <em>in silico</em> studies suggested that BER may inhibit tumor cell proliferation by targeting the AKT signaling pathway. This was further validated through western blot analysis which confirmed that BER-GNPs significantly suppressed AKT phosphorylation and activated the intrinsic apoptotic pathway by increasing the Bax/Bcl-2 ratio, indicating enhanced pro-apoptotic activity.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100092"},"PeriodicalIF":0.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446039","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

Study of properties of graphene oxide nanoparticles obtained by laser ablation from banana, mango, and tangerine peels 激光烧蚀香蕉、芒果和橘子皮制备氧化石墨烯纳米颗粒的性能研究

Nano Trends Pub Date : 2025-02-11 DOI: 10.1016/j.nwnano.2025.100091

Francisco Severiano Carrillo , Abdú Orduña Díaz , Orlando Zaca Moran , Oscar Secundino Sánchez , Javier Flores Méndez , José Ángel Guillen Cervantes

{"title":"Study of properties of graphene oxide nanoparticles obtained by laser ablation from banana, mango, and tangerine peels","authors":"Francisco Severiano Carrillo , Abdú Orduña Díaz , Orlando Zaca Moran , Oscar Secundino Sánchez , Javier Flores Méndez , José Ángel Guillen Cervantes","doi":"10.1016/j.nwnano.2025.100091","DOIUrl":"10.1016/j.nwnano.2025.100091","url":null,"abstract":"<div><div>The physical and chemical properties of graphene oxide nanoparticles (GONs) obtained by laser ablation from banana, mango, and tangerine were studied in this work. To obtain the GONs low laser power were used. The GONs showed different chemical and physical properties depending from the peel used as source. Scanning electron microscopy characterization showed that the size of the GONs depends on the peel used to obtain them. The characterization obtained by energy dispersive spectroscopy showed that GONs are mainly composed of carbon and oxygen. The morphological analysis was realized through transmission electron microscopy and the formation of graphene was observed. Selected area electron diffraction patterns were used to study the crystallinity of the GONs obtained. Fourier transform infrared spectroscopy shows the chemical changes among the GONs obtained from the different peels used as source. Raman spectra demonstrate the obtention of GONs and their defect densities were estimated. The X-ray patterns suggest that the samples obtained are composed of different carbon structures. Ultraviolet-visible spectroscopy shows that the GONs has different absorptions bands related to the peels used as source. Photoluminescence analysis demonstrate that the GONs obtained from all peels has luminescent properties, those obtained from mandarin shows the greater intensity. The main emission was observed at 496 nm and is related to the characteristic graphene oxide. The electrical conductivity analysis demonstrated that only the GONs obtained from banana peels can show an enhancement in the conductivity of fluids. The results demonstrated that the nanoparticles obtained in this work can be used in the development of optoelectronic devices.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100091"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438146","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

Exploring the catalytic capabilities of NiS@MoS2 2D for the production of Green Hydrogen 探索NiS@MoS2 2D对生产绿色氢的催化能力

Nano Trends Pub Date : 2025-02-11 DOI: 10.1016/j.nwnano.2025.100089

Gowhar A. Naikoo , Mustri Bano , Mohd M. Ayyub , Israr U. Hassan , Tawfik A. Saleh

{"title":"Exploring the catalytic capabilities of NiS@MoS2 2D for the production of Green Hydrogen","authors":"Gowhar A. Naikoo , Mustri Bano , Mohd M. Ayyub , Israr U. Hassan , Tawfik A. Saleh","doi":"10.1016/j.nwnano.2025.100089","DOIUrl":"10.1016/j.nwnano.2025.100089","url":null,"abstract":"<div><div>This study aims to delve into the catalytic capabilities of MoS<sub>2</sub> and NiS deposited MoS<sub>2</sub> (NiS@MoS<sub>2</sub>) 2D material explored via a facile hydrothermal process for HER (hydrogen evolution reaction). The shape and structural properties of these 2D materials were evaluated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), and Raman techniques. The XRD study of the NiS@MoS<sub>2</sub> sample highlighted notable shifts in the peaks as well as the emergence of distinctive additional peaks, indicative of structural changes due to the deposition of NiS. Electrochemical impedance spectroscopy (EIS) and Cyclic voltammetry (CV) were applied to assess their HER. The decrease in Tafel slope in NiS@MoS<sub>2</sub> validated the increase in electrocatalytic activity, which was further corroborated by a decrease in charge transfer resistance (Rct). The onset potential (−0.14 V, vs Ag/AgCl) and the overpotential (η@10) (−0.30 V) of NiS@MoS<sub>2</sub> have exposed the enhanced HER activity of NiS decorated MoS<sub>2</sub> materials. Conclusively, this research work underscores the significant potential of NiS@MoS<sub>2</sub> nanostructures in driving efficient and sustainable green hydrogen production, making a pivotal step forward in energy research.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"9 ","pages":"Article 100089"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474220","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