Environmental Nanotechnology, Monitoring and Management最新文献

{"title":"A critical review of occurrence, sources, fate, ecological risk, and health effect of emerging contaminants in water and wastewater","authors":"Gurudatta Singh,&nbsp;Anubhuti Singh,&nbsp;Virendra Kumar Mishra","doi":"10.1016/j.enmm.2024.100994","DOIUrl":"10.1016/j.enmm.2024.100994","url":null,"abstract":"<div><p>Emerging contaminants (ECs) are a diverse group of chemicals that have recently been identified as potential threats to human health and the environment. ECs are typically found at low concentrations (ng/L to ug/L) in water and wastewater, but they can bioaccumulate and biomagnified in the food chain, posing a risk to aquatic life and humans. Sources of these contaminants are diverse, with pharmaceuticals and personal care products entering the environment through human excretion, while industrial chemicals and pesticides are introduced through manufacturing processes and agricultural runoff. Wastewater treatment plants (WWTPs) are often unable to remove ECs effectively so that they can increase in surface water, groundwater, and drinking water. The fate of ECs in the environment is complex. It depends on various factors, including the chemical properties of the EC, the environmental conditions, and the presence of other chemicals. ECs can be transported long distances in water and persist in the environment for years or even decades.</p><p>Developing countries like India have limited information about most of the ECs. The ecological risks of ECs are not fully understood, but there is growing concern that they can have a negative impact on aquatic life and human health. Furthermore, the EC has undergone a detailed risk assessment examination, and the risk quotient (RQ) for different aquatic species with respect to corresponding contaminants is also calculated. Results imply that Paracetamol and Bisphenol-A have high RQ values for algae, fish and daphnia. Algae have shown substantially greater resilience to the action of ECs among the selected aquatic species.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100994"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239954","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}

{"title":"Degradation and mineralization of atrazine by ozonation: A toxicological prediction by QSAR toolbox","authors":"Vanessa Jurado-Davila ,&nbsp;Gustavo Dall Agnol ,&nbsp;Letícia Reggiane de Carvalho Costa ,&nbsp;Júlia Toffoli de Oliveira ,&nbsp;Liliana Amaral Féris","doi":"10.1016/j.enmm.2024.101002","DOIUrl":"10.1016/j.enmm.2024.101002","url":null,"abstract":"<div><p>This work aims to investigate the atrazine (ATZ) mitigation by an advanced oxidative process. Atrazine is one an effective herbicide which has been detected in water sources, causing contamination problems. To address the persistent issue of contamination, ATZ degradation and mineralization were studied by ozonation. In addition, the eco-toxicity of the possible degradation byproducts was also evaluated by the Quantitative Structure-Activity Relationship (QSAR) OECD toolbox. To evaluate the influence and predict the optimum conditions of the ozonation process and the reaction time on the degradation of ATZ, as well as, the percentage of mineralization, an experimental design was performed based on factorial design 23 methodology with center-point analysis. Total organic carbon (TOC) analyses and High-Performance Liquid Chromatography (HPLC) were employed to evaluate the efficiency of ATZ mitigation. The optimal conditions were achieved at an ozone flow rate of 0.4 mL/min, oxidation time = 30 min, and pH=8 where 100 % of ATZ was degraded and the highest percentage of mineralization was obtained (25.61 %). The potential toxicity of the residual concentration of ATZ was obtained by comparing with the values predicted by the QSAR tool, by comparing the outcomes. It was possible to come to the conclusion that the approach had positive implications for environmental safety. The values obtained are below the values considered toxic in aquatic environments, in almost all experiments. Low-concentration byproduct formation suggests that the degradation routes lead to low-hazardous concentrations of compounds for the environment. This implies the ozone treatment strategy might offer a long-term remedy for the ATZ.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101002"},"PeriodicalIF":0.0,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142147777","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}

{"title":"Sustainable analytical approach for selective fluorescence sensing of sulfosulfuron using copper nanoclusters from Tinospora cordifolia leaves extract","authors":"Vibhuti Atulbhai Sadhu ,&nbsp;Piyush Anil Kumar Sharma ,&nbsp;Sanjay Jha ,&nbsp;Tae Jung Park ,&nbsp;Suresh Kumar Kailasa","doi":"10.1016/j.enmm.2024.101003","DOIUrl":"10.1016/j.enmm.2024.101003","url":null,"abstract":"<div><p>In recent times, there has been a growing trend in utilizing medicinal plant extracts for the fabrication of fluorescent nanomaterials. In this work, <em>Tinospora cordifolia-</em>copper nanoclusters (<em>T. cordifolia</em>-CuNCs) were produced by employing <em>Tinospora cordifolia</em> (common name is “giloy”), a medicinal plant. A green chemistry approach was employed to generate blue fluorescent <em>T. cordifolia</em>-CuNCs, displaying λ_Em at 430 nm when λ_Ex at 330 nm, which shows a good quantum yield (QY) of 26.67 %. Sulfosulfuron pesticide was able to quench the fluorescence intensity of <em>T. cordifolia</em>-CuNCs via a “turn-off” mechanism. It was noticed that <em>T. cordifolia</em>-CuNCs could be used for the detection of sulfosulfuron pesticide in the range of 0.025–90 µM with a detection limit of 6.52 nM. Furthermore, a cellulose-based paper strip sensor was created for the<!--> <!-->visual detection of sulfosulfuron pesticide. Moreover, <em>T. cordifolia</em>-CuNCs-based fluorescence method was applied to quantify sulfosulfuron pesticide in apple, tomato, and rice samples, showing good recoveries, which demonstrates that this probe offers great potentiality for sensing of sulfosulfuron pesticide in food and environmental samples.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101003"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142128927","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}

{"title":"ZnO nanostructures grown from spent batteries: Ambient catalytic aspects and novel mechanistic insights","authors":"Hetvi Dave ,&nbsp;Naznin Shaikh ,&nbsp;Padmaja Pamidimukkala","doi":"10.1016/j.enmm.2024.101004","DOIUrl":"10.1016/j.enmm.2024.101004","url":null,"abstract":"<div><p>The present work includes a facile and economic microwave assisted hydrothermal synthesis of Zinc Oxide (ZnO), Diethylene Triamine Pentaacetic Acid (DTPA) stabilized Zinc Oxide (ZD) and DTPA stabilized Silver doped Zinc Oxide (ZAD) nanostructures using Zn from spent alkaline batteries. The synthesised nanostructures were well characterised using electronic, vibrational and X-Ray spectroscopic techniques as well as thermal and microscopic techniques revealing the successful stabilisation of DTPA in ZD and doping of Ag in ZAD. The Fourier Transform Infrared Spectroscopy (FTIR) spectra showed peaks characteristic to the presence of ZnO in the fingerprint region and those to the presence of DTPA. The X-Ray Diffraction Spectroscopy (XRD) pattern of ZnO, ZD and ZAD indicated the hexagonal wurtzite structure of ZnO and face centred cubic metallic Ag in ZAD. The Transmission Electron Microscopy (TEM) images revealed rod shaped morphology for ZnO and spherical morphologies for ZD and ZAD. The nanostructures proved to be efficient catalysts to achieve 100 % degradation of Malachite Green, Crystal Violet and Reactive Blue-21 and their binary mixtures under ambient conditions in presence of Hydrogen peroxide (H₂O₂). ZAD exhibited relatively rapid degradation with rate constants 0.754 min⁻¹, 0.187 min⁻¹ and 0.0150 min⁻¹ for MG, CV, and RB-21 respectively as well as 99 % reduction in Chemical Oxygen Demand (COD) value of the dye solutions. Scavenging studies and Electron Paramagnetic Resonance (EPR) studies using different spin trapping agents revealed the involvement of singlet oxygen species, hydroxyl radicals (OH^.) and superoxide radicals (O₂<strong>^.-</strong>) in the degradation process. This work aligns with Sustainable Development Goals 6, 12 and 13.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101004"},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142163673","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}

{"title":"Exploring the potential of metallic and metal oxide nanoparticles for reinforced disease management in agricultural systems: A comprehensive review","authors":"Adnan Raza ,&nbsp;Krisha Khandelwal ,&nbsp;Soumya Pandit ,&nbsp;Mohini Singh ,&nbsp;Sandeep Kumar ,&nbsp;Sarvesh Rustagi ,&nbsp;Nishant Ranjan ,&nbsp;Rajan Verma ,&nbsp;Kanu Priya ,&nbsp;Ram Prasad","doi":"10.1016/j.enmm.2024.100998","DOIUrl":"10.1016/j.enmm.2024.100998","url":null,"abstract":"<div><div>Metallic nanoparticles are regarded as one of the most versatile and environmentally beneficial nanocompounds, especially in agriculture. The anti-phytopathogenic properties of metallic and metal-based nanoparticles are the principal objective of this study. This article provides an analysis of the protection-based applications of nanoparticles comprising the following elements: silicon, chitosan, gold (Au), silver (Ag), platinum (Pt), copper (Cu), nickel (Ni), iron (Fe), zinc (Zn), titanium (Ti), and aluminium (Al), in addition to their metallic oxides and carriers. Furthermore, an examination of their manner of manufacturing using biological precursors, commonly referred to as “green synthesis,” and their impact on phytopathogens and parasites has been presented. We concluded that biosynthesized metallic nanoparticles have a diverse array of potential applications as disease control agents due to their superior antioxidant capacities, reduced phytotoxicity, and increased biocompatibility with plant systems in comparison to conventionally synthesized nanoparticles. Nanoparticles improve agricultural processes by increasing efficiency, lowering environmental impact, and addressing phytotoxicity problems. Material scientists and biologists must work together to refine metallic nanoparticles such as zinc, nickel, and copper for effective and environmentally friendly crop protection. Further investigation is warranted to ascertain the extent of these nanoparticles’ impact on commercial applications through concentration measurements and method of action analysis, notwithstanding these advantages. This research aims to bridge the knowledge gaps that exist between studies of various metals and offer a comprehensive overview of the latest developments in the field.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100998"},"PeriodicalIF":0.0,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324078","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}

{"title":"Developing machine learning algorithms to predict the dissolution of zinc oxide nanoparticles in aqueous environment","authors":"Ntsikelelo Yalezo ,&nbsp;Ndeke Musee ,&nbsp;Michael O. Daramola","doi":"10.1016/j.enmm.2024.101000","DOIUrl":"10.1016/j.enmm.2024.101000","url":null,"abstract":"<div><p>Engineered nanoparticles (ENPs) are of particular concern due to their ubiquitous occurrence and potential to cause adverse effects on aquatic biota. Consequently, a comprehensive understanding of ENP interactions and the mechanisms that underpin their fate and behaviour in the aquatic system is important to support their long-term applications and protection of ecology. However, due to a wide range of physicochemical parameters, as well as possible dynamic interactions with natural colloid particles, it is not practical to undertake experimental testing for each variation of ENPs using different aquatic permutations. This study describes machine learning (ML) algorithms for prediction of nZnO dissolution in aquatic systems using experimental data. The input parameters with the highest correlation were size and pH. On the contrary, categorical input variables such as coating, coating type, salt, and NOM type had a low correlation. The random forest regression and the extreme gradient boost algorithms performed remarkably well, with coefficients of determination (R²) of 0.85 and 0.92, respectively. The least effective method was multiple linear regression, which had a root mean square error of 0.15 and an R² of 0.31. ML offers a convenient and low-cost approach for screening nZnO dissolution in aquatic systems.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101000"},"PeriodicalIF":0.0,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142147776","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}

{"title":"Manganese metal ion removal from aqueous solution using industrial wastes derived geopolymer","authors":"K.A. Abhilash Kumar ,&nbsp;Kiran K. Shetty ,&nbsp;Raja Selvaraj ,&nbsp;Ramesh Vinayagam ,&nbsp;Adithya Samanth","doi":"10.1016/j.enmm.2024.100999","DOIUrl":"10.1016/j.enmm.2024.100999","url":null,"abstract":"<div><p>Heavy metal pollutants, highly toxic and invisible, have garnered attention due to bioaccumulation. Increased manganese production from steel industries is expected to lead to harmful concentrations in water, adversely affecting the environment and public health. The sustainable approach of utilizing industrial by-products to synthesize geopolymers for the immobilization of heavy metal ions has gained research interest. The current study aims to verify the feasibility of Paper sludge ash (PSA) in conventional geopolymer (CGP) to immobilize manganese (Mn) heavy metal ions from aqueous solutions. CGP was prepared using Fly ash (FA) as resource material, which was replaced by PSA at a level of 30 %, by weight. The precursors were treated with alkali solutions, namely sodium hydroxide and sodium silicate, incorporating ambient curing. The characterization studies of precursors and CGP were investigated using XRD, XRF, SEM, EDS, FTIR, and Brunauer-Emmett-Teller surface area (BET) analysis techniques to outline the crystal structure, morphology, and pore parameters. Additionally, the experimental investigation comprehensively examined the impact of various pH levels, dosages, contact times, and initial concentrations on the removal efficiency of Mn heavy metal ions. The difference in concentration of Mn heavy metal ions quantified by atomic absorption spectrometry. The Langmuir models effectively explained the removal of Mn ions by CGP due to high fitting coefficients. The highest value of uptake capacity was found to be 28 mg/g at 30 °C with pH value of 4. Therefore, blending industrial wastes improves the potential of decontamination agents in removing heavy metals from wastewater, promoting environmental sustainability.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100999"},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2215153224000874/pdfft?md5=27da1f5ce2fc2e3096757c6858fcf3bc&pid=1-s2.0-S2215153224000874-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098239","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}

{"title":"Antibacterial activity of functionalized natural zeolites (NZ-AgNPs) and its application in bacteriological water treatment and commercial paints","authors":"Anna Carla Ribeiro ,&nbsp;Alessandra Marjorie de Oliveira ,&nbsp;Laiza Bergamasco Beltran ,&nbsp;Alexandre Diório ,&nbsp;Grace Anne Vieira Magalhães-Ghiotto ,&nbsp;Benício Alves de Abreu Filho ,&nbsp;Elizabeth da Costa Neves Fernandes de Almeida Duarte ,&nbsp;Rosângela Bergamasco","doi":"10.1016/j.enmm.2024.101001","DOIUrl":"10.1016/j.enmm.2024.101001","url":null,"abstract":"<div><p>Developing advanced materials with efficient antibacterial properties to guarantee human health protection is urgent. This study aimed to evaluate the antibacterial performance of natural zeolite (NZ) functionalized with silver nanoparticles (Ag NPs), obtained from a green reducing method using <em>Moringa oleifera</em> seed extract (NZ-AgNPs), against a Gram-negative bacteria, namely <em>Escherichia coli</em> (<em>E. coli</em>). Moreover, two applications were tested: bacteria adsorption for water treatment, namely <em>Escherichia coli</em>, and its incorporation in commercial paints. The proposed modifications were confirmed by advanced characterization techniques (TEM, SEM, EDX, FTIR, XRD, and ZP). The antibacterial activity assay was conducted using minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The results demonstrated the advantages of using an inorganic support for carrying biocidal agents. The required amount of Ag NPs, when it was supported onto NZ (NZ-AgNPs), was four times less to exhibit the bactericidal effect against <em>Escherichia coli</em> than Ag NPs on their own since they had the same MBC value (1.56 mg ml⁻¹). The observed adsorption behavior corroborates such findings and demonstrates that 0.01 g of the proposed composite achieved 100 % of <em>E. coli</em> removal and 9.85 log reduction. Regarding commercial paint experiments, the NZ-AgNPs successfully demonstrated the potential to inhibit bacterial growth with an inhibition zone (IZ) of 41 mm. Using inorganic carriers, as NZ, for controlling the biocidal compound release can bring economic and environmental advantages because zeolite is a natural material and the saved amount of biocidal agent, namely Ag NPs, are desirable features of a new antibacterial additive’s generation.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 101001"},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142121727","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}

{"title":"Evaluation of the removal of cyanobacteria and cyanotoxins with a composite hydrogel based on chemically modified gelatin and PVA-containing graphene oxide nanoparticles","authors":"Grace Anne Vieira Magalhães-Ghiotto ,&nbsp;Jean Paulo Silva Natal ,&nbsp;Marcos Rogério Guilherme ,&nbsp;Raquel Guttierres Gomes ,&nbsp;Rosângela Bergamasco","doi":"10.1016/j.enmm.2024.100995","DOIUrl":"10.1016/j.enmm.2024.100995","url":null,"abstract":"<div><p>After being applied to pharmaceutics removal from water, the newly synthesized composite hydrogel based on chemically modified gelatin and PVA-containing graphene nanoparticles (CHGP-GOn), was now assessed for another application. The hydrogels were able to interact with <em>Microcystis aeruginosa</em> cells, resulting in the formation of small cell colonies and cell lysis related to exposure time. In the removal tests, the best general removal efficiency of cyanobacterial cells was achieved with the highest adsorbent mass at natural pH, achieving values of removal of 90 % for cells, 75 % chlorophyll-a, 63 % and 43 % for turbidity and visible colour removals, respectively. From the kinetic study, the results showed that cell inactivation has achieved removal equilibrium in 19 h, with a qe of 106 × 10⁶ cells/g of CHGP-GOn. Furthermore, with the results from the other parameters, the tests presented a removal equilibrium of just 14 h, there was a removal of 4670 µg/L of Chlorophyll-a and 6450 µg/L/g of MC-LR microcystin per gram of adsorbent. The experimental data best fitted to the Elovich model, indicating possible removal by chemisorption. Analysis of cellular integrity and morphology showed that within just 12 h, few cyanobacterial cells showed membrane disruption and release of intracellular toxins, with an increase in the toxicity medium related to extended exposure time, and presentation of morphological and superficial cellular damage within 24 h. In addition, other characteristic measurements presented an exceptional mechanical strength and resistance that was slightly reduced after swelling. However, showing good development during adsorption tests under agitation, without any detachment of material and an absence of GO leaching. Therefore, it can be concluded that the synthesized hydrogel should be applied in removing <em>M. aeruginosa</em> cells and their toxins from water treatment, serving as an excellent alternative to traditional adsorbents.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100995"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098240","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}

{"title":"Environmentally friendly slow-release urea fertilizer based on modified chitosan membrane","authors":"Retno Ariadi Lusiana ,&nbsp;Putri Widiarti Mariyono ,&nbsp;Hasan Muhtar ,&nbsp;Sari Edi Cahyaningrum ,&nbsp;Taufik Abdillah Natsir ,&nbsp;Lisna Efiyanti","doi":"10.1016/j.enmm.2024.100996","DOIUrl":"10.1016/j.enmm.2024.100996","url":null,"abstract":"<div><p>The inefficient use of conventional fertilizers has prompted the exploration of slow-release fertilizer (SRF) systems to enhance plant nutrient delivery and uptake. This study investigates the potential of the chitosan (CS) membrane modified with succinic acid (SA) and calcium ions (Ca²⁺) as an effective SRF system. The CS/SA-U/Ca-coated membrane can extend the release period of urea, thereby optimizing fertilizer efficiency and promoting plant growth. The structural and chemical features of the CS/SA-U/Ca membrane were comprehensively analyzed. The modification with Ca²⁺ increased the membrane’s thickness, decreased its swelling degree, and resulted in a rougher, more porous surface, all of which contributed to a more controlled release of urea. Urea release profiles were evaluated in both water and soil, demonstrating that the CS/SA-U/Ca coating extended the release period to 20 days in water and over 30 days in soil. Quantitative UV–Vis spectrophotometry and qualitative assessments were used to measure the urea release and evaluate the impact of the SRF on vegetable plant growth. Experimental results demonstrated a significant enhancement in plant growth, with a 46 % increase in stem growth and a doubling of leaf count compared to control plants without the SRF membrane. These findings suggest that the CS/SA-U/Ca-coated SRF system holds promise for optimizing fertilizer use and promoting plant growth by providing a more controlled nutrient release.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100996"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142121726","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}