Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-11-28DOI: 10.1016/j.nxnano.2025.100314
Bayu Tri Murti , Athika Darumas Putri , Ma’rifatun Izati , Mazaya Sulaekhah , Po-Kang Yang
{"title":"Electrochemical and colorimetric nano(bio)sensors for point-of-care detection of creatinine","authors":"Bayu Tri Murti , Athika Darumas Putri , Ma’rifatun Izati , Mazaya Sulaekhah , Po-Kang Yang","doi":"10.1016/j.nxnano.2025.100314","DOIUrl":"10.1016/j.nxnano.2025.100314","url":null,"abstract":"<div><div>Detection of creatinine, a primary biomarker for assessing kidney function, is essential for diagnosing and managing renal conditions. Conventional methods for creatinine measurement, such as serum assays, commercial kits, and clearance tests, often require laborious equipment and extensive processing times, which may not be feasible for a point-of-care (POC) setting. Recent advances in nanotechnology have led to the development of novel electrochemical and colorimetric nano(bio)sensors that offer promising solutions for rapid, reliable, selective, handheld, and on-site detection of creatinine. This review provides a forward-looking overview of cutting-edge sensing technologies, focusing on creatinine biosynthesis, nano(bio)sensor principles, and advanced applications in POC diagnostics of renal biomarkers. A comparative analysis of electrochemical and colorimetric nano(bio)sensors for creatinine detection is also highlighted.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100314"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617493","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-07-15DOI: 10.1016/j.nxnano.2025.100214
E.T. Bello , A. Nasir , A.S. Abdulkareem , M.M. Muhammadu , N.A. Musa , J.O. Tijani , Samson Oluwaseyi Bada
{"title":"Nano-coolants for thermal enhancement in heat exchangers: A review of prospects, challenges and applications","authors":"E.T. Bello , A. Nasir , A.S. Abdulkareem , M.M. Muhammadu , N.A. Musa , J.O. Tijani , Samson Oluwaseyi Bada","doi":"10.1016/j.nxnano.2025.100214","DOIUrl":"10.1016/j.nxnano.2025.100214","url":null,"abstract":"<div><div>The demand for efficient thermal systems has driven significant interest in nano-coolants due to their superior thermal properties as alternatives to traditional coolants like water, ethylene glycol (EG), synthetic oils (polyalphaolefins), and refrigerants (R134a, R410A). These coolants face operational and environmental challenges, including low heat transfer capacity, corrosion, toxicity and ecological effects that limit their efficiency under ideal conditions because of their poor thermophysical properties, which hinder their deployment. This review provides a comprehensive analysis of the prospects, challenges and applications of nano-coolants in various heat exchanger systems. Nanoparticles such as Al<sub>2</sub>O<sub>3,</sub> ZnO, Fe<sub>3</sub>O<sub>4,</sub> SiO<sub>2</sub> and CNTs are evaluated for their ability to enhance thermal conductivity, stability and heat transfer performance, with key factors influencing thermal enhancement, including size, shape, concentration and preparation methods, being critically examined. The study highlights applications across different heat exchanger configurations, including shell and tube, plate, double pipe, microchannel and spiral heat exchangers, which are evaluated through experimental and numerical results. Performance metrics such as Nusselt number, Reynolds number, heat transfer coefficient and overall heat transfer coefficient are discussed. In addition, the review addresses technical challenges, including agglomeration sedimentation, toxicity, increased viscosity and environmental impact, hindering widespread adoption. Furthermore, it outlines emerging prospects, including life cycle assessment, integration with renewablelar energy and the use of artificial intelligence and machine learning for predictive modeling and optimization, offering sustainable pathways for deployment and system miniaturization. The review demonstrates that, despite challenges, nano-coolants can effectively and efficiently enhance thermal exchange, impacting heat exchanger designs across various industries.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100214"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633505","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-09-02DOI: 10.1016/j.nxnano.2025.100254
Subhajit Maity
{"title":"Chitosan nanoparticles for insulin delivery in type 1 diabetes: Overcoming challenges in bioavailability and long-term control","authors":"Subhajit Maity","doi":"10.1016/j.nxnano.2025.100254","DOIUrl":"10.1016/j.nxnano.2025.100254","url":null,"abstract":"<div><div>Type 1 diabetes (T1D) cohort requires a lifelong insulin supplement but the traditional insulin delivery systems have severe drawbacks such as unacceptable bioavailability of the drug, frequent regimens, lack of patient adherence. This paper will discuss the use of chitosan nanoparticles (CNPs) as a new form of insulin delivery vehicle, and the potential that this possesses to improve its effectiveness as a form of therapy. CNPs enhance the stability of insulin stabilizing it against enzymatic degradation; they also allow controlled release. On the other hand, their mucoadhesive properties prolong intestinal retention that can improve absorption and reduce dosing frequency, which can improve patient compliance. Again, the CNPs encapsulate insulin through electrostatic interactions that can prevent degradation in the gastrointestinal tract while endorsing sustained glucose regulation. Furthermore, this study specify that CNP-based insulin delivery significantly expands glycemic control and reduces hypoglycemia risks. Despite their advantages, challenges include variability in insulin release, scalability in production, and regulatory hurdles. Future advancements, such as hybrid systems and stimuli-responsive nanoparticles, aim to optimize stability and targeted insulin delivery. The integration of nanomedicine into diabetes management may revolutionize treatment, offering a more effective and patient-friendly approach.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100254"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932211","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2024-08-24DOI: 10.1016/j.nxnano.2024.100098
Adiba Adiba , Ph Nonglen Meitei , Tufail Ahmad
{"title":"Laser-induced modulation of Magnon and Phonon excitations: Size and defect dependency in antiferromagnetic NiO nanoparticles with rhombohedral distortion","authors":"Adiba Adiba , Ph Nonglen Meitei , Tufail Ahmad","doi":"10.1016/j.nxnano.2024.100098","DOIUrl":"10.1016/j.nxnano.2024.100098","url":null,"abstract":"<div><p>NiO nanoparticles were synthesized using jasmine flower and orange peel. The transition from cubic to rhombohedral phase was observed with peak splitting in the XRD patterns as the annealing temperature increased. Differences in the annealing environment resulted in particles with different crystallite sizes and amounts of nickel vacancy, directly impacting their magnetic properties. Notably, particles below 30 nm exhibited weak ferromagnetism, while those above 30 nm showed antiferromagnetic properties. Moreover, the power of the laser was tuned to 5 mW to achieve the disappearance of the 2 M peak. A key highlight of this work is the identification of the transverse acoustic phonon mode and the splitting of the transverse optical (TO) mode in NiO.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000597/pdfft?md5=503adb539bb83616389fbfe586a7faab&pid=1-s2.0-S2949829524000597-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048638","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-07-15DOI: 10.1016/j.nxnano.2025.100215
Md. Estabrak Ahammod Sakib , Md. Lael Hasan , Hridoy Roy , Md. Mahfujul Hasan , Md. Mintu Ali
{"title":"Colocasia esculenta leaf extracted cobalt oxide nanoparticles: A comprehensive investigation of the microstructural, morphological, antibacterial, and photocatalytic activity","authors":"Md. Estabrak Ahammod Sakib , Md. Lael Hasan , Hridoy Roy , Md. Mahfujul Hasan , Md. Mintu Ali","doi":"10.1016/j.nxnano.2025.100215","DOIUrl":"10.1016/j.nxnano.2025.100215","url":null,"abstract":"<div><div>This research was carried out to explore the biosynthesized cobalt oxide nanoparticles (Co<sub>3</sub>O<sub>4</sub> NPs) for biomedical and environmental applications by using <em>Colocasia esculenta</em> (Taro) leaf extract. Herein, the synthesized nanoparticles were then characterized through several analytical techniques, such as x-ray diffraction (XRD), scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), and uv–visible spectroscopy. The crystallographic nature of prepared cobalt oxide NPs was largely confirmed by XRD analysis, with an average crystallite size of 18.233918 nm. Later, the SEM micrograph revealed spherical shape nanoparticles (22.26654 nm ± 0.17983 nm) dispersed throughout the surface area. EDS ensured the presence of existing elements in the composition. The absorbance peak at 212.5 nm and the energy band gap of 5.46 eV were noted by the uv–visible analysis, The antibacterial activity of the prepared NPs was evaluated against gram-positive (<em>Staphylococcus aureus, Bacillus subtilis</em>) and gram-negative (<em>Pseudomonas aeruginosa, E. coli</em>) bacteria, which demolished the bacterial cell by increasing the zone of inhibition area. Besides, the photocatalytic activity of <span><math><mrow><msub><mrow><mi>Co</mi></mrow><mrow><mn>3</mn></mrow></msub><msub><mrow><mi>O</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span> NPs for an organic dye (Methylene Blue) degradation reached 86.40 % within 90 min, which may be recommended to mitigate related industrial contamination problems. This exploration also suggested that synthesized Co<sub>3</sub>O<sub>4</sub> could be a promising material for photocatalytic dye degradation.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100215"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632315","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-04-11DOI: 10.1016/j.nxnano.2025.100159
Navya Aggarwal, Shreya Gupta, Shinjini Sen, Tanmay J. Urs, Banashree Bondhopadhyay
{"title":"Nanostructured materials for breast cancer therapeutics enhancing drug delivery through nanofibers, nano-mesh, and nanoflowers","authors":"Navya Aggarwal, Shreya Gupta, Shinjini Sen, Tanmay J. Urs, Banashree Bondhopadhyay","doi":"10.1016/j.nxnano.2025.100159","DOIUrl":"10.1016/j.nxnano.2025.100159","url":null,"abstract":"<div><div>Breast cancer drug delivery systems rely heavily on conventional routes of administration through adjuvant formulations. These systems have been under development for decades to deduce safer, bioavailable, specific, selective and efficacious modalities. Nanotechnology based drug delivery systems proposed to solve these issues, have led to a boom in nanoparticle based, liposomal, nanovesicles, nanocapsules, and similar provisions. The improvement of the existing available systems inspired biodegradable nanostructures such as nanofibers, nanomesh and nanoflowers. These structures provide better opportunities to improve targetability, bioavailability, better safety profiles. The platforms additionally facilitate controlled release of the loaded drugs. This minireview explores nanofibers, nanomesh and nanoflowers in breast cancer treatment as emerging nanostructures for delivery of chemotherapeutics. Nanofibers emulate the natural extracellular matrix which can be modified for biodegradability and tumor identification. Nanomesh provide large drug-antigen loading platform with interwoven strands.On the other hand, nanoflowers can be conveniently modulated to control the release of the drug. These nanostructures offer innovative solutions to the typical drawbacks of drug absorption, selectivity and delivery on tumor sight. In this minireview, we aim to comprehensively present how these nanostructures are created, address their mechanism of action and how they are developing the landscape of breast cancer drug delivery systems.The study prioritizes these nanostructures over their conventional counterparts due to their visible benefits while also addressing their limitations which should be further researched upon, for breast cancer therapeutics.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100159"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820588","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":"Biogenic nanoparticles: Understanding their potential role in cancer theranostics","authors":"Durdana Yasin , Neha Sami , Bushra Afzal , Almaz Zaki , Haleema Naaz , Shaheen Husain , Tabassum Siddiqui , Moshahid Alam Rizvi , Tasneem Fatma","doi":"10.1016/j.nxnano.2025.100149","DOIUrl":"10.1016/j.nxnano.2025.100149","url":null,"abstract":"<div><div>Cancer has been a disease that is responsible for the maximum number of deaths around the globe. Despite so many drugs and available treatments, researchers aim to find a more efficient treatment modality with target-specificity and less toxicity. Nanotechnology has promising potential in the development of such drugs. Nanomaterials are smaller in size, possess large surface area and some very unique properties that could potentiate their usage in the cancer treatment. This review aims to impart information on the latest development in the biomedical application of biogenic nanoparticles (NPs) in preventing, diagnosis, and cancer therapy. The authors intend to give insight into developing bio-based nano-systems to warrant their use for increased specific targeting of the cancerous cells. Indeed, biogenic NPs hold great promise in cancer theranostics, offering potential advancements in both diagnosis and treatment. Key future directions include optimizing synthesis for enhanced stability and targeting, combining NPs with gene or immunotherapy for multi-modal approaches, and integrating them with advanced imaging technologies. Scaling up production while maintaining cost-effectiveness and sustainability will be essential for clinical translation.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100149"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636672","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-06-23DOI: 10.1016/j.nxnano.2025.100203
Divyam Mishra , Bhavishya Chaturvedi , Vishal Soni , Dhairya Valecha , Megha Goel , Jamilur R. Ansari
{"title":"Impact of bridging the gap between Artificial Intelligence and nanomedicine in healthcare","authors":"Divyam Mishra , Bhavishya Chaturvedi , Vishal Soni , Dhairya Valecha , Megha Goel , Jamilur R. Ansari","doi":"10.1016/j.nxnano.2025.100203","DOIUrl":"10.1016/j.nxnano.2025.100203","url":null,"abstract":"<div><div>Nanotechnology encompasses the engineering and manipulation of materials at the nanoscale (10<sup>−9</sup> m), focusing on the development and application of novel structures and concepts. Concurrently, Artificial Intelligence (AI) simulates human cognitive processes, enabling machines to make decisions and solve problems. Within AI, subfields such as Machine Learning and Deep Learning leverage vast datasets to predict outcomes based on historical trends. This research examines the intersection of AI and nanotechnology within the medical sector, with an emphasis on illness localization, diagnosis, and therapeutic interventions. AI's deployment in molecular imaging has proven invaluable for early disease detection and treatment via biosensors. A key aspect of our analysis is the utilization of AI to formulate personalized treatment plans, enhancing the probability of achieving optimal drug-patient synergy. Additionally, we explore the development of AI-powered nanobots, capable of autonomous logical reasoning to target malignant cells for localized cancer therapy. The optimization of AI-driven drug delivery systems using nanoparticles demonstrates significant potential for surpassing the efficacy of existing delivery mechanisms. We will also assess the long-term implications of lipid nanoparticles in drug delivery applications. Machine Learning algorithms are employed to create data-driven adaptive nanomaterials and paradigms, further advancing the field. Furthermore, this study investigates the application of AI in predicting nanomedicine interactions with biological systems, aiming to establish AI-enabled platforms for personalized nanomedicine therapies. In summary, our work highlights the synergistic potential of AI and nanotechnology in catalyzing breakthroughs in medical innovation.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100203"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365284","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-05-30DOI: 10.1016/j.nxnano.2025.100180
Pushpendra Kumar Khangar , Vivek Daniel
{"title":"Advanced approaches in lung cancer therapy–Exploring the unique role of Multiwalled Carbon Nanotubes","authors":"Pushpendra Kumar Khangar , Vivek Daniel","doi":"10.1016/j.nxnano.2025.100180","DOIUrl":"10.1016/j.nxnano.2025.100180","url":null,"abstract":"<div><h3>Hypothesis</h3><div>This paper hypothesizes that Multiwalled Carbon Nanotubes (MWCNTs) can serve as effective nanocarriers for anticancer drug delivery in lung cancer therapy. Their high surface area, biocompatibility, and adaptable surface chemistry make them promising candidates for enhancing drug delivery efficiency. MWCNTs offer the potential to enable targeted transport of anticancer drugs directly to lung cancer cells, reducing systemic toxicity through controlled and prolonged drug release while also improving drug clearance mechanisms. However, despite these advantages, the study acknowledges significant concerns regarding toxicity, biocompatibility, and long-term safety. Addressing these challenges is crucial for the successful clinical translation of MWCNT-based drug delivery systems.</div></div><div><h3>Experiments (review-based analysis)</h3><div>Although this study does not conduct direct experiments, it reviews existing research and experimental findings on the incorporation of anticancer drugs into Multiwalled Carbon Nanotubes (MWCNTs), which involves efficient loading and release methods that ensure drug stability and retention within the nanocarrier system. These approaches enhance the controlled delivery of therapeutic agents, preventing premature degradation and maximizing efficacy. MWCNTs play a crucial role in drug delivery by improving circulation, enabling controlled release, and minimizing systemic toxicity. Additionally, surface modifications of MWCNTs contribute to better drug delivery efficiency by enhancing solubility and targeting capabilities. However, concerns regarding safety and biocompatibility remain critical. Preclinical studies have been conducted to evaluate the toxicity, biodegradability, and inflammatory response associated with MWCNTs. Surface modifications have been explored as a strategy to mitigate adverse effects, improve cellular compatibility, and enhance the overall feasibility of MWCNT-based drug delivery systems for lung cancer therapy.</div></div><div><h3>Findings</h3><div>MWCNT-based drug delivery demonstrates significant potential in improving lung cancer treatment by enabling targeted drug transport to cancer cells, thereby enhancing therapeutic efficacy. The controlled release of drugs from MWCNTs helps minimize systemic toxicity, ultimately improving patient safety and treatment outcomes. However, several challenges and limitations must be addressed before clinical implementation. Toxicity remains a primary concern, as MWCNTs may trigger inflammatory responses or accumulate in tissues, leading to potential long-term adverse effects. Additionally, the biocompatibility and overall safety of these nanocarriers require further validation through rigorous preclinical testing. Looking ahead, extensive research is essential to develop clinically viable MWCNT-based drug delivery systems. Further advancements in surface modifications and biodegradability enhancements are necessary to reduce ","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100180"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170339","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}
Next NanotechnologyPub Date : 2025-01-01Epub Date: 2025-07-01DOI: 10.1016/j.nxnano.2025.100208
Govindarajalu Kishore , Periyasamy Pritha , S. Xavier , D. Bhakiaraj , Francisxavier Paularokiadoss , Christian A. Celaya , Mohammad Mansoob Khan
{"title":"Synergistic effects of Bi-metal oxide–graphene oxide nanocomposites in photodegradation applications","authors":"Govindarajalu Kishore , Periyasamy Pritha , S. Xavier , D. Bhakiaraj , Francisxavier Paularokiadoss , Christian A. Celaya , Mohammad Mansoob Khan","doi":"10.1016/j.nxnano.2025.100208","DOIUrl":"10.1016/j.nxnano.2025.100208","url":null,"abstract":"<div><div>The present study focuses on synthesizing two graphene-based composites, GO/CaO and GO/BaO, for photodegradation applications towards the methylene blue dye. The polycrystalline nature of the composites was determined by the XRD analysis with an average crystalline size of 14.9 nm. Raman analysis and FT-IR spectral analysis were used to determine the interaction between GO and the metal oxides. The optical band gap was evaluated to be 3.2 eV and 4.2 eV, with an absorbance λ<sub>max</sub> of around 242 nm. The PL analysis confirms the electron mobility within the composites with an emission peak of 694 nm. The elemental composition and chemical state of the composites were evaluated using XPS analysis, providing valid results for the C1s peak at 284 eV, which corresponds to the C-C and C<img>C bonds. The photocatalytic degradation of the dye molecule was investigated by utilizing natural sunlight as the irradiation source to assess the practical applicability of the synthesized composites. The maximum degradation percentage achieved by the GO/CaO was 90 % with a period of 120 min under natural sunlight, showing a promising catalyst with a cost-effective and environmentally friendly composite for real-world wastewater treatment.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100208"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522307","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}