Applied Nanoscience最新文献

{"title":"Investigating electrocatalytic properties of β12-borophene as a cathode material for an efficient lithium-oxygen battery: a first-principles study","authors":"C. Fwalo,&nbsp;A. Kochaev,&nbsp;R. E. Mapasha","doi":"10.1007/s13204-024-03062-x","DOIUrl":"10.1007/s13204-024-03062-x","url":null,"abstract":"<div><p>Responding to the pressing need to mitigate climate change effects due to fossil fuel consumption, there is a collective push to transition towards renewable and clean energy sources. However, the effectiveness of this move depends on an efficient energy storage system that surpasses current lithium-ion battery technology. The lithium-oxygen battery, having significantly high theoretical specific capacity compared to other systems, has emerged as a promising solution. However, the issues of poor cathode electrode conductivity and slow kinetics during discharge product formation have limited its practical applications. In this work, the first principles-based density functional theory was used to investigate the electrocatalytic properties of β₁₂-borophene as a cathode electrode material for a high-performance lithium-oxygen battery. The adsorption energy, charge density distributions, Gibbs free energy changes, and diffusion energy barriers of lithium superoxide (LiO₂) on β₁₂-borophene were calculated. Our findings revealed several important insights: The adsorption energy was found to be − 3.70 eV, suggesting a strong tendency for the LiO₂ to remain anchored to the material during the discharging process. The dynamics in the charge density distributions between LiO₂ and the β₁₂-borophene substrate exhibited complex behavior. The analysis of the Gibbs free energy changes of the reactions yielded an overpotential of − 1.87 V, this moderate value suggests spontaneous reactions during the formation of the discharge products. Most interestingly, the density of states and band structure analysis suggested the preservation of metallic properties and improved electrical conductivity of the material after the adsorption of LiO₂. Additionally, β₁₂-borophene has a relatively low diffusion energy barrier of 1.08 eV, implying effortless diffusion of the LiO₂ and an increase in the rate of discharging process. Ultimately, the predicted electronic properties of β₁₂-borophene, make it a strong candidate as a cathode electrode material for an efficient lithium-oxygen battery.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 10","pages":"997 - 1012"},"PeriodicalIF":3.674,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13204-024-03062-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZnO-based random lasing and their sensing applications: a mini-review","authors":"Abdullah Abdulhameed","doi":"10.1007/s13204-024-03059-6","DOIUrl":"10.1007/s13204-024-03059-6","url":null,"abstract":"<div><p>Random lasers operate without a traditional resonator cavity compared with traditional lasers, instead relying on multiple scattering events within a disordered medium to amplify light. Their emission spectrum and spatial characteristics are determined by the disorder within the medium rather than by specific resonant modes. ZnO nanostructures are ideal for random lasers due to their strong light emission properties and high refractive index, facilitating efficient light scattering and amplification within the disordered medium. Additionally, their wide bandgap and ability to support both optical and electrical pumping make them versatile for various laser applications. ZnO-based random lasers unlock a future beyond high-resolution displays and foldable phones due to their speckle-free emission and a knack for scattering. In medicine, they promise label-free cellular insights, targeted cancer treatments, and miniaturized diagnostics. However, the future of ZnO-based random lasers demands careful crafting. Scalability, cost, and longevity remain hurdles. This review first addresses the synthesis parameters controlling ZnO nanostructures as gain media in random lasers. Then, recent advances in random laser design and performance are discussed, followed by an explanation of the pumping mechanisms. The review concludes by addressing the potential applications of ZnO-based random lasers, including sensors, imaging, medical and display technologies.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 10","pages":"985 - 995"},"PeriodicalIF":3.674,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141769448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial intelligence-based control for membrane bioreactor in sewage treatment","authors":"M. Yuvaraju,&nbsp;D. Deena","doi":"10.1007/s13204-024-03058-7","DOIUrl":"10.1007/s13204-024-03058-7","url":null,"abstract":"<div><p>Recently, membrane bioreactors (MBRs) have emerged as a promising approach for sewage treatment because of their high efficiency in removing contaminants. However, they are prone to membrane-fouling and computational loading. To resolve these issues, this research article presents an innovative control strategy combining both artificial bee colony optimization (ABC) and recurrent neural network (RNN) to regulate the performance of MBR in sewage treatment. Initially, the influent wastewater data were collected and pre-processed using the regression imputation approach. RNN architecture was designed and trained using the pre-processed data to forecast the performance of the MBN system. Further, the ABC algorithm was applied to optimize the function of MBR by adjusting the control variables. The developed model was validated with the publically available wastewater treatment plan dataset and the effectiveness of the developed model was validated by performing intensive performance and comparative assessment. The performance evaluation demonstrates that the proposed methodology attained greater results of 98.59% effluent quality, 98.70% of nutrient removal efficiency, less computational time of 2.87 s, and a low membrane-fouling index of 1.23%. The comparative analysis illustrates that the presented approach achieved improved performances than the existing methodologies.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 8","pages":"943 - 953"},"PeriodicalIF":3.674,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141643242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly sensitive MXene-based SO2 sensor enhanced by modification of SnO2 at room temperature","authors":"Rui Wu,&nbsp;Weiwei Chen,&nbsp;Shuxian Liao,&nbsp;Jiayong Yin,&nbsp;Ziqing Yuan,&nbsp;Haoran Han,&nbsp;Xiangyu Liao,&nbsp;Yong Zhang,&nbsp;Yongbiao Zhai,&nbsp;Liangchao Guo","doi":"10.1007/s13204-024-03061-y","DOIUrl":"10.1007/s13204-024-03061-y","url":null,"abstract":"<div><p>High-performance and room-temperature gas sensors are ideal for industrial production and environmental detection. Enhancing gas-detection capability by the use of highly conductive MXene in conjunction with metal oxide materials is a potential approach. In this work, we have prepared a gas-sensing composite device based on SnO₂/V₂CT_x nanocomposites, which can be used to detect the concentration of SO₂ gas at room temperature (~ 20 ℃). This paper modified two-dimensional (2D) V₂CT_x MXene with SnO₂ nanoparticles by electrostatic binding method to synthesize SnO₂/V₂CT_x composite nanomaterials. The experimental results show that at room temperature, the addition of SnO₂ nanoparticles can markedly improve the gas-sensing response (from 66 to 83%) characteristics of pure V₂CT_x to SO₂. The gas sensitivity of SnO₂/V₂CT_x MXene nanocomposites can reach 83%, and its response/recovery time is 98 s/81 s under 10 ppm SO₂. The gas-sensing composite devices made of SnO₂/V₂CT_x composite nanomaterials also show good selectivity and application prospects.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 9","pages":"973 - 983"},"PeriodicalIF":3.674,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141643294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbubble-based liposomal delivery of dasatinib and COL11A1siRNA for enhanced combination therapy against lung adenocarcinoma","authors":"Mahalakshmi Nannan,&nbsp;Sivaramakrishnan Venkatabalasubramanian","doi":"10.1007/s13204-024-03057-8","DOIUrl":"10.1007/s13204-024-03057-8","url":null,"abstract":"<div><p>Current chemotherapeutic treatments have severely limited effectiveness against tumors. Co-delivery of chemotherapeutic drugs and small interfering RNA (siRNA) in a nanoliposomal drug delivery system is known to selectively improve cytotoxicity against tumors. The current study aimed to achieve augmented combination therapy (Dasatinib-DST and siRNA targeting COL11A1 gene) against lung adenocarcinoma (LUAD) in vitro. The microbubble liposome (MB-LP)-based codelivery system (DST and COL11A1) used in this study was prepared using the thin film hydration method. The resulting codelivery system (MB-LP/DST/siRNA) average size and zeta potential were about 1611.5 nm and − 10.35 mV, respectively. Nevertheless, the average size of the MB-LP drug delivery system alone was 530 nm. The percentage encapsulation efficiency (% EE) of the combination drug (DST and COL11A1^siRNA) in the MB-LP nanodelivery system was 62.9%. The surface morphology of the codelivery system (MB-LP/DST/siRNA) was analysed using a High-Resolution Scanning Electron Microscope (HR-SEM) and a High-Resolution Transmission Electron Microscopy (HR-TEM). Both confirmed the spherical shape of the MB-LP system. MTT-based proliferation analysis in vitro revealed that DST and COL11A1^siRNA containing MB-LP codelivery system caused significant inhibition of cell proliferation against LUAD. This is the first study that suggests the co-delivery of the chemotherapeutic drug (DST) and COL11A1^siRNA using the MB-LP drug delivery system facilitates an anti-proliferative effect against LUAD cells. Additionally, we also conclude that these prospective results strengthen the evidence on the potential of combination therapy (DST and COL11A1^siRNA) against LUAD.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 8","pages":"931 - 941"},"PeriodicalIF":3.674,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theranostic nanocarrier for acyclovir: tailored SPIONs with MR contrast potential","authors":"Navjeet Kaur Lotey,&nbsp;Suraj Shirke,&nbsp;Rohan Upadhyay,&nbsp;Vaishnavi Parmar,&nbsp;Priyanka Sabherwal,&nbsp;Ramesh Chaughule,&nbsp;Suhas Pednekar,&nbsp;Deepak Patkar","doi":"10.1007/s13204-024-03056-9","DOIUrl":"10.1007/s13204-024-03056-9","url":null,"abstract":"<div><p>In this study, we address the critical need for advanced theranostic drug delivery systems by synthesizing and characterizing surface-functionalized superparamagnetic iron oxide nanoparticles (SPIONs). Acyclovir is an effective antiviral drug with poor water solubility leading to limitations in its administrations and effectivity. Our investigation into the drug-loading capacity of acyclovir reveals that surface-functionalized SPIONs with an average size of 8.1 nm exhibit a notable increase in drug-loading capacity proportional to drug concentration. Specifically, at drug concentrations of 752.21 μg, 1774.32 μg, and 3799.09 μg, we achieved loading efficiencies and capacities of 40.89%, 51.62%, and 50.14% respectively. Alongside, they have high biocompatibility as observed from the hemolysis assay and MTT assay. Moreover, the multifunctionality of these SPIONs extends beyond drug delivery, as they demonstrate high relaxivity suitable for magnetic resonance imaging (MRI) studies at remarkably low concentrations in the micromolar range. Specifically, the relaxivity value (<i>r</i>2) for the said SPIONs was calculated to 10.99 L/mmol^−s which is higher than many commercially used iron oxide-based contrast agents. The multifunctional attributes of these SPIONs position them as versatile and easily customisable platform for diverse therapeutic molecules. This study not only underscores the feasibility of utilizing surface-modified SPIONs as efficient carriers for acyclovir or other therapeutic molecules but also paves the way for evaluating the feasibility of next-generation theranostic materials for biomedical applications.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 7","pages":"917 - 929"},"PeriodicalIF":3.674,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effects of Curcuma amada functionalized ZnO nanostructures: bioactivity, catalytic, photocatalytic, and supercapacitor application","authors":"Sajeena Beevi Sharafudheen,&nbsp;C. Vijayakumar,&nbsp;P. M. Anjana,&nbsp;S. L. Rayar,&nbsp;R. Rajakrishnan,&nbsp;Selvaraj Arokiyaraj,&nbsp;M. R. Bindhu","doi":"10.1007/s13204-024-03054-x","DOIUrl":"10.1007/s13204-024-03054-x","url":null,"abstract":"<div><p>The present study focuses on a facile phytosynthesis to develop <i>C. amada</i>-coated ZnO nanoparticles from zinc acetate dihydrate solution by using <i>Talinum fructicosum</i> leaf as reducing agent. The phenolic content of <i>C. amada</i> along with curcuminoid compounds (such as de- and bis-methoxy curcumin), function as a surface-active source to produce high-quality ZnO nanostructures. The X-ray diffraction (XRD), BET Surface area analysis (BET), X-ray photoelectron spectroscopy (XPS), UV–Visible spectral analysis (UV), Fourier transform infrared spectroscopy (FTIR), antimicrobial, antidiabetic, bovin serum albumin denaturation assay, electrochemical analysis (ES), photocatalytic degradation and catalytic reduction potential evaluation were used to characterize the phyto-synthesised ZnO nanoparticles. The XRD pattern exhibited a good nanocrystallinity with hexagonal wurtzite structure and an efficient band gap of 3.33 eV which further proved the ZnO nanoparticles to be a good semiconductor. FTIR analysis and XPS studies mutually prove the Zn–O bond formation; BET analysis confirmed the configuration of ZnO, with the surface area of 11.488 m²/g, which is mesoporous in nature and highlighted the significance of the porous morphology in SEM findings. The study specially focuses on illustrating the symmetric supercapacitor electrode based on ZnO nanoparticles with a superior specific capacitance value of 457 F g⁻¹ (1 A g⁻¹). The photodegradation of methylene blue and methyl orange dyes demonstrated a maximum degradation efficiency of 97 and 91%, respectively, achieved after 90 minutes of irradiation, emphasizing the influence of an increased concentration of biomolecules. Additionally, ZnO nanoparticles exhibited effective catalytic reduction potential on highly toxicious 4-nitrophenol to get reduced into less hazardious 4-aminophenol. The broad range of functionalities enhances the utility of biogenic ZnO nanoparticles and widens its scope for energy and environmental applications.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 7","pages":"891 - 916"},"PeriodicalIF":3.674,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison effects of gelation on sodium alginate–iron oxide nanocomposites for efficient catalytic degradation of organic dyes","authors":"Shanza Rauf Khan,&nbsp;Sajid Ali,&nbsp;Wardah Burhan,&nbsp;Sarmed Ali,&nbsp;Saba Jamil,&nbsp;Shamsa Bibi,&nbsp;Naila Bilal,&nbsp;Sabahat Naseem,&nbsp;Muhammad Jamshed Latif","doi":"10.1007/s13204-024-03055-w","DOIUrl":"10.1007/s13204-024-03055-w","url":null,"abstract":"<div><p>This research investigates the synthesis of sodium alginate–iron oxide nanocomposites (SAL-Fe₃O₄) through the co-precipitation method, with a focus on the impact of gelation time. SAL-Fe₃O₄ nanocomposites were precipitated from Fe₂(SO₄)₃ and FeSO₄ under an alkaline medium in the presence of sodium alginate, maintaining a stoichiometric balance using a molar ratio of 1:2 for iron (III) Fe³⁺ to iron (II) Fe²⁺ ions precursors. Two types of SAL-Fe₃O₄ nanocomposites were prepared by varying the gelation time of sodium alginate to 3 and 24 h. Extensive characterization was performed using UV, FTIR, XRD and SEM with EDX analysis techniques to evaluate the properties of the nanocomposites. Fourier-Transformed infrared Spectroscopy (FTIR) analysis provided insights into the presence of sodium alginate on the SAL-Fe₃O₄ nanocomposite surface and the bonding characteristics within the polymer. X-ray diffraction (XRD) analysis was employed to determine lattices, phases, and preferred crystal orientations (texture) of the nanocomposites. Scanning Electron Microscope (SEM) was utilized to examine morphology, microstructures, dimensions, and size of the prepared nanocomposites. Energy-Dispersive X-ray (EDX) was used for the analysis of the elemental composition of the nanocomposites. Additionally, the catalytic efficiency of SAL-Fe₃O₄ nanocomposites was evaluated through the catalytic degradation of organic dyes using hydrogen peroxide (H₂O₂) as the oxidizing agent. The degradation processes were monitored by UV-visible spectrophotometry and the apparent rate constant (k_app), degradation time, percentage (%) degradation, degradation concentration and half-life values of different organic dyes were studied and compared, highlighting the influence of gelation time on the degradation efficiency.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 6","pages":"875 - 889"},"PeriodicalIF":3.674,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141193769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: Enhanced bactericidal action and dye degradation of spicy roots’ extract-incorporated fine-tuned metal oxide nanoparticles","authors":"A. Haider,&nbsp;M. Ijaz,&nbsp;M. Imran,&nbsp;M. Naz,&nbsp;H. Majeed,&nbsp;J. A. Khan,&nbsp;M. M. Ali,&nbsp;M. Ikram","doi":"10.1007/s13204-024-03052-z","DOIUrl":"10.1007/s13204-024-03052-z","url":null,"abstract":"","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 10","pages":"1013 - 1014"},"PeriodicalIF":3.674,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140976441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalytic degradation of malachite green over differently synthesized nano-α-Fe2O3: a comprehensive pathway","authors":"R. Kavitha,&nbsp;Jayashree Natesan,&nbsp;K. M. Archana,&nbsp;Revathy Rajagopal","doi":"10.1007/s13204-024-03053-y","DOIUrl":"10.1007/s13204-024-03053-y","url":null,"abstract":"<div><p>Nano-sized amorphous Iron (III) oxides have been a fascinating material for the scientific community owing to their widespread promising application in photocatalysis of water decontamination, due to high specific surface area and variable valency. Malachite green dye is a non-biodegradable organic pollutant known for its toxic effects on humans and aquatic organisms. In the present work, Fe₂O₃ was synthesized through Citrate–Nitrate Sol–Gel route and Syzygium cumini leaf extract mediated green method. The composition and physical nature of the synthesized iron oxides were confirmed using p-XRD, SEM-EDAX, XPS techniques. A comparative investigation of visible light degradation of malachite green dye was done using differently synthesized Fe₂O₃ at pH 8. The LCMS study exposed that the sol–gel Fe₂O₃ was highly efficient in transforming Malachite green (MG) into a no. of intermediates of low molecular weights, whereas green Fe₂O₃ revealed formation of both high and low molecular weight metabolites. In the light of the evidence derived from LCMS, a pathway has been proposed to highlight the absolute and sequential transformation of the dye to environmentally benign compounds. The study also disclosed the key role played by Iron oxide nanoparticles (IONPs), in the total mineralization of the dye to carbonates and nitrates that can be assimilated by plants and the decontaminated water can be engaged in agricultural practices.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"14 6","pages":"845 - 873"},"PeriodicalIF":3.674,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}