Journal of Cluster Science最新文献

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Synthesis of Magnetic Nanocomposites Based on Imidazole Zeolite-8 Framework Doped with Silver Nanoparticles for Effective Removal of Norfloxacin from Effluents 基于掺杂银纳米颗粒的咪唑沸石-8 框架的磁性纳米复合材料的合成,用于有效去除污水中的诺氟沙星
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-07 DOI: 10.1007/s10876-024-02707-9
Mohammad Mehdi Sadughi, Alijan Mazani, Marzieh Varnaseri, Eshagh Barfar, Nezamaddin Mengelizadeh, Davoud Balarak
{"title":"Synthesis of Magnetic Nanocomposites Based on Imidazole Zeolite-8 Framework Doped with Silver Nanoparticles for Effective Removal of Norfloxacin from Effluents","authors":"Mohammad Mehdi Sadughi,&nbsp;Alijan Mazani,&nbsp;Marzieh Varnaseri,&nbsp;Eshagh Barfar,&nbsp;Nezamaddin Mengelizadeh,&nbsp;Davoud Balarak","doi":"10.1007/s10876-024-02707-9","DOIUrl":"10.1007/s10876-024-02707-9","url":null,"abstract":"<div><p>In this study, an operative technique was presented for the synthesis of the magnetically separable γ-Fe<sub>2</sub>O<sub>3</sub>@SiO<sub>2</sub>@ZIF8@Ag photocatalyst. The synthesized nanostructures were identified using various structural analyses, including XRD, EDX/SEM, FTIR, bandgap, and VSM. Their ability to remove norfloxacin (NOR) was then examined by studying the effects of various parameters, including photocatalyst dose, solution pH, initial NOR concentration, and reaction time. The results showed that the catalyst had the best performance, with an efficiency of 100% under UV light and 96.2%unnder visible light, at a catalyst dose of 0.4 g/L and a reaction time of 45 min. Stability tests also showed that the synthesized photocatalyst maintained its proper performance after five cycles, and its efficiency was reduced by only 4.5%. Also, a comparison between the adsorption and the photocatalytic process showed that the adsorption process removed only 42% of NOR after 60 min, whereas the photocatalytic process, under both visible and UV light irradiation, was able to eliminate 100% of NOR in the same time period. The results showed that the degradation kinetics follow the first-order kinetic model. The reaction rate constants using UV and visible lamps were 0.082 and 0.056 min<sup>− 1</sup>, respectively, which indicates the degradation rate for UV light is 1.46 times higher compared to visible light. Also, the half-life times for the process with UV and visible light were 8.4 and 12.3 min, respectively. The average oxidation state (AOS) and carbon oxidation state (COS) of the process increased over time, indicating good degradation of NOR and conversion of non-biodegradable wastewater into biodegradable wastewater. Reactive oxygen species (ROS) assays showed that hydroxyl radicals and holes have the main role in the degradation process. Therefore, the proposed photocatalysts can be considered suitable, cost-effective, and reusable for the treatment of hospital wastewater.</p><h3>Graphical abstracts</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2991 - 3009"},"PeriodicalIF":2.7,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unveiling the Effect of Dilution on the Optical Response of Folic Acid Derived Carbon Dots: Role of Surface Interactions and Inner Filter Effect 揭示稀释对叶酸衍生碳点光学响应的影响:表面相互作用和内部过滤效应的作用
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-05 DOI: 10.1007/s10876-024-02710-0
Akhila Murali Jaya, Subodh Ganesanpotti, Sibi K. Solaman, V. Biju
{"title":"Unveiling the Effect of Dilution on the Optical Response of Folic Acid Derived Carbon Dots: Role of Surface Interactions and Inner Filter Effect","authors":"Akhila Murali Jaya,&nbsp;Subodh Ganesanpotti,&nbsp;Sibi K. Solaman,&nbsp;V. Biju","doi":"10.1007/s10876-024-02710-0","DOIUrl":"10.1007/s10876-024-02710-0","url":null,"abstract":"<div><p>The optical properties of Carbon dot (CD) solution significantly change on dilution. Herein, the effect of dilution on the optical properties of folic acid-derived CD was meticulously analyzed using absorption and photoluminescence (PL) spectroscopy. Absorption spectra of as-prepared CD solution consist of four overlapping yet discernable absorption bands centered at ~ 249, 302, 348, and 330 nm, respectively, attributed to originate from the π-π<sup>*</sup> transition and n-π<sup>*</sup> transitions and/or surface states. As the CD solution is diluted from 100 to 5%, these four absorption bands become more resolved. Moreover, we observed a blueshift of ~ 30 nm for the transitions at ~ 302 nm due to surface state with dilution up to 20% CD concentration. This is attributed to the decrease in the interaction between surface states due to the increase in the interparticle distance with dilution. PL emission from the as-prepared CD solution is centered at 463 nm and is asymmetric. This can be resolved into three components centered at 446 nm (intense), 474 nm (intense) and 508 nm (weak) respectively. With dilution, the PL intensity corresponding to the 463 nm emission seems to increase up to an optimum concentration of 15% CD and then decreases. The high concentration effectively quenches the luminescence through inner filter effect which is evident from the overlapping of absorption peak with the peak in the excitation spectrum together with no notable change in the average decay time. The decrease in the percentage of overlapping area of the absorption and excitation spectra with dilution causes the reduction of inner filter effect and enhances the luminescence for diluted solutions. Furthermore, we found that the surface states become more dominant in the contribution of luminescence of CD, whose influence diminishes in extremely diluted solutions, thereby the intensity decrease below 15% dilution.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2931 - 2940"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biosynthesized MgO NPs and Their Environmental Applications-A Short Review 生物合成氧化镁氮氧化物及其环境应用--简评
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-05 DOI: 10.1007/s10876-024-02705-x
Nethra Kuruthukulangara, I. V. Asharani
{"title":"Biosynthesized MgO NPs and Their Environmental Applications-A Short Review","authors":"Nethra Kuruthukulangara,&nbsp;I. V. Asharani","doi":"10.1007/s10876-024-02705-x","DOIUrl":"10.1007/s10876-024-02705-x","url":null,"abstract":"<div><p>Nanotechnology is increasingly recognized for its crucial role in addressing challenges in agriculture and environmental management, with nano-scaled materials central to this advancement. Conventional physical and chemical synthesis methods for nanomaterials often involve hazardous chemicals, posing safety and environmental risks, and are frequently cost-ineffective. This review investigates the innovative biosynthesis of magnesium oxide (MgO) nanoparticles, emphasizing their production through eco-friendly approaches involving biomolecules, plant-derived phytoconstituents, polyphenols, bacteria, algae, and fungi. We highlight how biosynthesized MgO nanoparticles exhibit exceptional properties, including unique morphology, high surface area, controlled particle size, and effective stabilization. The review also explores recent advances in their application as nanocatalysts, particularly for environmental remediation tasks such as photocatalytic degradation of dyes and removal of heavy metal ions and pesticides from contaminated environments. By underscoring the significance of green synthesis techniques, this study illustrates their potential in advancing sustainable nanotechnology solutions. It provides a promising foundation for future research in addressing pressing environmental challenges.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2681 - 2703"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Characterization of Silver Nanoparticles (Ag), Magnetite Nanoparticles (Fe3O4), and Magnetite/Silver Core-Shell (Fe3O4/Ag) Nanoparticles, and Their Application against Drug-Resistant Bacteria 银纳米粒子(Ag)、磁铁矿纳米粒子(Fe3O4)和磁铁矿/银核壳(Fe3O4/Ag)纳米粒子的合成与表征及其在抗耐药细菌中的应用
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-05 DOI: 10.1007/s10876-024-02708-8
Fedda Alzoubi, Wajde BaniHani, Rehan BaniHani, Hasan Al-Khateeb, Mohammed Al-Qadi, Qais Al Bataineh
{"title":"Synthesis and Characterization of Silver Nanoparticles (Ag), Magnetite Nanoparticles (Fe3O4), and Magnetite/Silver Core-Shell (Fe3O4/Ag) Nanoparticles, and Their Application against Drug-Resistant Bacteria","authors":"Fedda Alzoubi,&nbsp;Wajde BaniHani,&nbsp;Rehan BaniHani,&nbsp;Hasan Al-Khateeb,&nbsp;Mohammed Al-Qadi,&nbsp;Qais Al Bataineh","doi":"10.1007/s10876-024-02708-8","DOIUrl":"10.1007/s10876-024-02708-8","url":null,"abstract":"<div><p>Recently, metal and metal oxide nanoparticles have garnered significant scientific interest due to their distinctive properties and promising applications across diverse fields. This study details the successful synthesis and characterization of Fe<sub>3</sub>O<sub>4</sub>, Ag, and magnetite/silver core-shell (Fe<sub>3</sub>O<sub>4</sub>/Ag) nanocomposites, prepared through chemical reduction and co-precipitation methods. The successful incorporation of Ag into Fe<sub>3</sub>O<sub>4</sub> nanoparticles was confirmed through X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy. Physical characterization revealed that the synthesized nanoparticles were small in size and highly pure. Their optical and electrical properties, including bandgap and electrical conductivity, were also characterized. The antibacterial activity of the synthesized Fe<sub>3</sub>O<sub>4</sub>, Ag, and Fe<sub>3</sub>O<sub>4</sub>/Ag nanoparticles was evaluated using Minimum Bactericidal Concentration (MBC) against pathogenic bacterial strains: <i>S. typhimurium</i>,<i> P. aeruginosa</i>, and <i>S. aureus</i>. The results demonstrated that Ag, Fe<sub>3</sub>O<sub>4,</sub> and Fe<sub>3</sub>O<sub>4</sub>/Ag nanoparticles could inhibit high concentrations of bacteria, indicating an excellent antimicrobial effect. Furthermore, the Fe<sub>3</sub>O<sub>4</sub>/Ag nanoparticles were found to be more effective than both Fe<sub>3</sub>O<sub>4</sub> and Ag nanoparticles in inhibiting the selected pathogenic bacteria strains: S. <i>typhimurium</i>,<i> P. aeruginosa</i>, and <i>S. aureus.</i></p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2979 - 2989"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Nanosilica Morphology: Effects on Nanofluid Stability and Interaction with Carbonate Rock Surfaces 纳米二氧化硅形态评估:对纳米流体稳定性以及与碳酸盐岩表面相互作用的影响
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-05 DOI: 10.1007/s10876-024-02701-1
Seyyed Hadi Riazi, Elnaz Khodapanah, Seyyed Alireza Tabatabaei-Nezhad
{"title":"Evaluation of Nanosilica Morphology: Effects on Nanofluid Stability and Interaction with Carbonate Rock Surfaces","authors":"Seyyed Hadi Riazi,&nbsp;Elnaz Khodapanah,&nbsp;Seyyed Alireza Tabatabaei-Nezhad","doi":"10.1007/s10876-024-02701-1","DOIUrl":"10.1007/s10876-024-02701-1","url":null,"abstract":"<div><p>Silica nanoparticles are being studied for enhanced oil recovery (EOR) due to their ease of production and tunable characteristics. However, limited research has explored the impact of nanoparticle morphology on their effectiveness in EOR. This study investigates the synthesis and characterization of silica nanoparticles in two distinct morphologies: spherical and rod-shaped and their adsorption onto carbonate rock surfaces. Various analytical techniques, including FESEM, EDS, FTIR, TGA, BET, and XRD, were employed to characterize the nanoparticles. The study also examined the stability and zeta potential of nanofluids prepared with these nanoparticles in different salt solutions. The results revealed that rod-shaped nanoparticles exhibited greater thermal stability and higher zeta potential than spherical nanoparticles, contributing to the improved stability of the nanofluids. Additionally, the adsorption behavior of the nanoparticles on carbonate rock surfaces was assessed, with rod-shaped nanoparticles showing higher adsorption quantities compared to their spherical counterparts. The adsorption process followed pseudo-second-order kinetics and was influenced by both intraparticle and film diffusion mechanisms. The equilibrium adsorption data for silica nanoparticles was accurately described by the Langmuir isotherm model. Moreover, artificial neural networks (ANN) and least-squares support-vector machines (LSSVM) were utilized to model the adsorption behavior of nanoparticles. The high R<sup>2</sup> values indicated that these models effectively predicted nanoparticle adsorption on carbonate rock. The study also observed that rod-shaped nanoparticles caused more significant alterations in the roughness of the rock surface than spherical nanoparticles, potentially influencing oil flow in the porous medium during the EOR process.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2941 - 2978"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Citric Acid-Assisted Biosynthesis of MgO/MgO2 Nanocomposites: Enhanced Photocatalytic Degradation of Brilliant Cresyl Blue, Antibacterial and Antioxidant Activity Supported by Computational Simulations 柠檬酸辅助生物合成氧化镁/二氧化镁纳米复合材料:通过计算模拟增强对亮甲酚蓝的光催化降解、抗菌和抗氧化活性
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-05 DOI: 10.1007/s10876-024-02706-w
Okba Zemali, Hamdi Ali Mohammed, Salah Eddine Laouini, Chaima Salmi, Kamel Khennoufa, Maamra Mebarka, Djaafar Zemali, Abderrhmane Bouafia, Johar Amin Ahmed Abdullah, Mahmood M. S. Abdullah, Talha Bin Emran
{"title":"Citric Acid-Assisted Biosynthesis of MgO/MgO2 Nanocomposites: Enhanced Photocatalytic Degradation of Brilliant Cresyl Blue, Antibacterial and Antioxidant Activity Supported by Computational Simulations","authors":"Okba Zemali,&nbsp;Hamdi Ali Mohammed,&nbsp;Salah Eddine Laouini,&nbsp;Chaima Salmi,&nbsp;Kamel Khennoufa,&nbsp;Maamra Mebarka,&nbsp;Djaafar Zemali,&nbsp;Abderrhmane Bouafia,&nbsp;Johar Amin Ahmed Abdullah,&nbsp;Mahmood M. S. Abdullah,&nbsp;Talha Bin Emran","doi":"10.1007/s10876-024-02706-w","DOIUrl":"10.1007/s10876-024-02706-w","url":null,"abstract":"<div><p>In this study, we present a novel green synthesis method for magnesium oxide/magnesium peroxide nanocomposite using citric acid, enhancing both photocatalytic degradation and antioxidant activity. The physical properties and light absorption of the nanostructure were examined using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and ultraviolet–visible spectroscopy techniques. A cubic phase was identified, with a nano-size of 25 nm, and a bandgap energy of 2.45 eV was determined. In the photocatalytic degradation tests, the nanostructure achieved an 85% removal rate of Brilliant Cresyl Blue dye after 120 min, with a pseudo-first-order rate constant of 0.014 min⁻¹. Computational simulations revealed a high adsorption energy of -131.552 eV for Brilliant Cresyl Blue on the magnesium oxide/magnesium peroxide nanocomposite, indicating strong binding affinity and supporting the experimental degradation efficiency. Antioxidant assays revealed a half-maximal inhibitory concentration value of 45.81 µg/mL, showcasing substantial free radical scavenging capabilities comparable to established antioxidants. The antibacterial properties of magnesium oxide/magnesium peroxide nanocomposite were assessed against <i>Staphylococcus aureus</i> through the agar well diffusion method. The results demonstrated significant antibacterial efficacy, with inhibition zones ranging from 7.9 ± 0.4 mm to 14.9 ± 1.5 mm, indicating a dose-dependent antibacterial effect. This research advances green synthesis methods for multifunctional nanomaterials, offering promising solutions for environmental remediation and highlighting the potential of magnesium oxide/magnesium peroxide nanocomposite in wastewater treatment, antioxidant applications, and as a potent antibacterial agent.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2913 - 2929"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green-Synthesised Silver Nanoparticles from Pandan Extract: Enhancing PPE Effectiveness and Sustainability in the Post-COVID Era 从扁豆提取物中提取绿色合成纳米银粒子:在后 COVID 时代提高个人防护设备的有效性和可持续性
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-03 DOI: 10.1007/s10876-024-02704-y
Hajar Hassan, Mohammed Al-Kassim Hassan, Masratul Hawa Mohd, Yazmin Bustami, Noraziah Mohamad Zin, Wan-Atirah Azemin
{"title":"Green-Synthesised Silver Nanoparticles from Pandan Extract: Enhancing PPE Effectiveness and Sustainability in the Post-COVID Era","authors":"Hajar Hassan,&nbsp;Mohammed Al-Kassim Hassan,&nbsp;Masratul Hawa Mohd,&nbsp;Yazmin Bustami,&nbsp;Noraziah Mohamad Zin,&nbsp;Wan-Atirah Azemin","doi":"10.1007/s10876-024-02704-y","DOIUrl":"10.1007/s10876-024-02704-y","url":null,"abstract":"<div><p>The COVID-19 pandemic highlighted the urgent need for improved personal protective equipment (PPE). Green-synthesised silver nanoparticles (AgNPs) using pandan (<i>Pandanus amaryllifolius</i>) extract offer a sustainable solution to enhance PPE effectiveness against infectious diseases. This eco-friendly approach utilises pandan’s bioactive compounds to reduce silver ions into nanoparticles, providing a sustainable alternative to conventional chemical synthesis methods. The resulting AgNPs exhibit potent antimicrobial and antiviral properties, making them valuable for incorporation into PPE fabrics and coatings. Beyond antimicrobial benefits, pandan-derived AgNPs may impart natural fragrances and skin-soothing properties, enhancing user comfort. The green synthesis process reduces environmental impact and potential toxicity associated with conventional chemical methods. While challenges in scaling production, ensuring regulatory compliance, and assessing long-term health and environmental effects persist, pandan-derived AgNPs-coated PPE represents an innovative approach to infection prevention. This technology has the potential to significantly improve safety measures in healthcare and other high-risk environments while promoting sustainability.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2663 - 2680"},"PeriodicalIF":2.7,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and Development of Gastro-retentive Gel Forming System Comprising Curcumin Loaded Nanostructured Lipid Carrier for Stomach Specific Delivery 设计和开发含有姜黄素的纳米结构脂质载体的胃部特异性给药胃黏膜凝胶成型系统
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-03 DOI: 10.1007/s10876-024-02702-0
Mohankumar Dhasaiyan, Arjunan Karuppaiah, Habibur Rahman
{"title":"Design and Development of Gastro-retentive Gel Forming System Comprising Curcumin Loaded Nanostructured Lipid Carrier for Stomach Specific Delivery","authors":"Mohankumar Dhasaiyan,&nbsp;Arjunan Karuppaiah,&nbsp;Habibur Rahman","doi":"10.1007/s10876-024-02702-0","DOIUrl":"10.1007/s10876-024-02702-0","url":null,"abstract":"<div><p>This study delved on development of curcumin loaded Nanostructured Lipid carrier (NLC) incorporated into gastro-retentive oral in-situ gel for specifically designed to the stomach delivery. Curcumin is less soluble in stomach pH, so a high amount of drug would be required to produce the desired effects. The solubility of curcumin was enhanced by incorporating curcumin into NLC through size reduction. Subsequently, it was formulated into GRDDS for targeted stomach-specific delivery. The curcumin loaded NLC was fabricated using a high shear homogenization technique. Through lipid screening, Precirol ATO 5 and Labrafac PG were chosen as a lipids, and tween 80 was selected as a surfactant in this formulation. A formulation (NLC-F4) comprising 2% lipids and 800 mg of surfactant was chosen as the best formulation, average mean particle size was found to be 119.3 ± 0.13 nm, PDI was found to be 0.127 ± 0.02, Zeta potential was found to be -30 ± 0.17 mV and % of encapsulation efficiency were found to be 83.4 ± 1.5%. FT-IR investigation showed no interactions. Scanning Electron Microscopy (SEM) revealed smooth and spherical shaped particles, while Differential Scanning Calorimetry (DSC) assessment suggested that curcumin is complexed in the NLC formulation. The in vitro drug release of curcumin from NLC-F4 showed 8 times enhanced drug release compared with the pure curcumin in pH 1.2 buffer. In vitro antioxidant and anti-inflammatory studies revealed significant effects compared to reference standards. Drug release kinetics followed first order release and Weibull kinetics models. The curcumin loaded NLC was fabricated into oral in-situ gel to enhances the gastric retention time and prolong release of drug in the stomach. The system exhibited quick gelation time, optimal viscosity, gastric buoyant density, 24 h floating time, good gel strength, and sustained drug release. These investigations revealed that an oral in-situ gelling system containing curcumin loaded NLC has potential as a carrier for stomach specific delivery and could serve as an alternative dosage form compared to conventional ones for treating gastric ulcers in patients.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2899 - 2912"},"PeriodicalIF":2.7,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biosynthesized ZnO/ZnSnO₃ Nanocomposite Using Lemon Peel Extract for Enhanced Photocatalytic Degradation of Evans Blue Dye and Antibacterial Applications 利用柠檬皮提取物生物合成 ZnO/ZnSnO₃ 纳米复合材料,用于增强埃文斯蓝染料的光催化降解和抗菌应用
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-10-01 DOI: 10.1007/s10876-024-02703-z
Laila Hamza, Chaima Salmi, Salah Eddine Laouini, Hamdi Ali Mohammed, Abderrhmane Bouafia, Fahad Alharthi, Mokni-Tlili Sonia, Johar Amin Ahmed Abdullah
{"title":"Biosynthesized ZnO/ZnSnO₃ Nanocomposite Using Lemon Peel Extract for Enhanced Photocatalytic Degradation of Evans Blue Dye and Antibacterial Applications","authors":"Laila Hamza,&nbsp;Chaima Salmi,&nbsp;Salah Eddine Laouini,&nbsp;Hamdi Ali Mohammed,&nbsp;Abderrhmane Bouafia,&nbsp;Fahad Alharthi,&nbsp;Mokni-Tlili Sonia,&nbsp;Johar Amin Ahmed Abdullah","doi":"10.1007/s10876-024-02703-z","DOIUrl":"10.1007/s10876-024-02703-z","url":null,"abstract":"<div><p>This research outlines the development, comprehensive analysis, and assessment of the photocatalytic and antibacterial properties of ZnO/ZnSnO₃ nanocomposite (NC). The nanocomposite was synthesized using an eco-friendly green synthesis method with lemon peel extract. Techniques such as XRD, SEM, and FTIR verified the formation of dual-phase ZnO/ZnSnO₃ NC with an energy gap of ~ 1.9 eV and an average crystallite size of ~ 25.45 ± 1.24 nm. Photocatalytic degradation evaluated for Evans Blue (EB) dye under solar light indicated high degradation efficiency ~ 99.57% during 90 min, following pseudo-first-order kinetics with a rate constant ~ 0.11 min⁻¹. Furthermore, ZnO/ZnSnO₃ NC exhibited notable antibacterial potential with inhibition zones ranging from (10.0 ± 1.3 to 12.0 ± 0.5) mm for <i>E. coli</i> and (9.0 ± 0.8 to 14.0 ± 0.6) mm for P. aeruginosa, with improved activity against <i>K. pneumoniae</i> and <i>S. aureus</i>. The as-prepared NC exhibited significant antifungal activity against <i>C. albicans</i> with inhibition zones ~ 22.0 ± 0.3 mm. The results obtained categorized ZnO/ZnSnO₃ NC as a potential candidate to be utilized for environmental cleanup and wastewater treatment.</p></div>","PeriodicalId":618,"journal":{"name":"Journal of Cluster Science","volume":"35 8","pages":"2885 - 2897"},"PeriodicalIF":2.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Synthesis, Structure and Fluxional Behaviour of Sulfido- Capped Triruthenium Clusters Containing a Bridging 1,1’-Bis(diphenylphosphino)ferrocene Ligand 更正:含桥式 1,1'-双(二苯基膦)二茂铁配体的硫酸封端三钌簇的合成、结构和通量行为
IF 2.7 4区 化学
Journal of Cluster Science Pub Date : 2024-09-30 DOI: 10.1007/s10876-024-02689-8
Profulla Mondol, Md.Abdullah Al Mamun, Md.Emdad Hossain, Shishir Ghosh, Vladimir N. Nesterov, Shariff E. Kabir
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