Nano-Structures & Nano-Objects最新文献

{"title":"Tunable photoluminescence of electrosynthesized Ag2S@ZnSe quantum dots for nanomedicine applications","authors":"Iago R. Vasconcelos ,&nbsp;Denilson V. Freitas ,&nbsp;Felipe L.N. Sousa ,&nbsp;Anderson C. Jesus ,&nbsp;Caroline F. Santana ,&nbsp;Palloma L. Oliveira ,&nbsp;Fabiana A.C. Silva ,&nbsp;Diana Maria Perez Escobar ,&nbsp;Thompson J.A. Reis ,&nbsp;Tereza C. Leal-Balbino ,&nbsp;Ana C.B. Vidal ,&nbsp;Marcelo Navarro","doi":"10.1016/j.nanoso.2024.101400","DOIUrl":"10.1016/j.nanoso.2024.101400","url":null,"abstract":"<div><div>Quantum dots (QDs) synthesized from environmentally friendly precursors associated to scalable and high-efficiency production routes are essential for nanomedicine applications. Ag₂S nanocrystal is notable by antimicrobial activity, photothermal properties, and low toxicity, making it promising bioactive nanomaterial. In this work, L-glutathione (GSH) capped Ag₂S and ZnSe seeds were synthesized by using a fast and environmentally friendly electrochemical method (cavity cell, graphite powder macroelectrode and aqueous medium) and tested for biological applications. Ag₂S nanocrystals presented a monoclinic structure (XRD analysis). The modulation of the optical properties was carried out by varying the Ag⁺/S^2- ratio (1:1, 2:1, and 4:1), showing a photoluminescence hypsochromic shift from 916 to 759 nm, respectively. The modulation of the optical parameters was also carried out by the synthesis of Ag₂S@ZnSe core/shell nanostructures. ZnSe seeds were prepared by the same electrochemical method and added to the Ag₂S solution followed by thermal treatment under reflux (10 min). Ag₂S@ZnSe systems showed higher photoluminescence intensity and a hypsochromic shift of the emission band using Ag₂S cores (Ag⁺/S^2- = 1:1 and 1:2), which was associated to the formation of alloy-type structures. In the case of the Ag₂S@ZnSe (Ag⁺/S^2- = 1:4), a bathochromic shift of the emission bands can be observed, which was associated to the formation of a core/shell structure. Ag₂S@ZnSe QDs were tested in antimicrobial and cytotoxicity assays, showing a minimal inhibitory concentration (MIC) equal to 512 µg.mL⁻¹. No cytotoxicity was observed against the Vero cell line at all concentrations tested (7.81–1000 µg.mL⁻¹), and low cytotoxicity against the HT-29 tumor line (7.81–31.25 µg.mL⁻¹), thus showing promising results for bioapplications.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101400"},"PeriodicalIF":5.45,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586486","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":"Influence of morphology on thermal properties of Mn3O4 nanoparticles - A thermal lens study","authors":"Jayaprasad K V,&nbsp;Titu Thomas,&nbsp;Ramya Manikandan,&nbsp;Manu Vaishakh,&nbsp;Sheenu Thomas","doi":"10.1016/j.nanoso.2024.101396","DOIUrl":"10.1016/j.nanoso.2024.101396","url":null,"abstract":"<div><div>The shape dependent optical and thermal properties of Mn₃O₄ nanostructures synthesized via precipitation method is investigated in the present study. By varying the stirring temperature during the precipitation process, a series of nanoparticles with distinct morphologies were produced, transitioning from agglomerated structures to nanorods and further to nanocubes. Notably, the morphological evolution of Mn₃O₄ nanoparticles as influenced by stirring temperature has not been previously documented in the literature. The thermal diffusivity of Mn₃O₄ nanoparticles was quantified through a dual beam collinear thermal lens technique. An increase in stirring temperature resulted in the variation in thermal diffusivity values which substantiates the role of morphology in governing the thermo-optic characteristics of Mn₃O₄. The alterations are explained using absorption and emission spectra analysis. The thermal diffusivity values of Mn₃O₄ nanoparticles were found to be more than that of the base fluid, ethylene glycol (0.93 ×10⁻⁷ m²/s) varying between 5.71 ×10⁻⁷ m²/s to 24.93 ×10⁻⁷ m²/s. The exceptionally high thermal diffusivity values found in these samples suggest their potential for various technological applications, particularly in cooling systems. This study emphasizes the relationship between morphology and thermal properties, paving the way for the development of materials with tailored thermal behaviors for a wide range of applications.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101396"},"PeriodicalIF":5.45,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142577922","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":"Recent advancements in selenium nanoconstructs as a potential carrier in cancer therapy","authors":"Ritu Kudarha ,&nbsp;Viola Colaco ,&nbsp;Ashutosh Gupta ,&nbsp;Sanjay Kulkarni ,&nbsp;Soji Soman ,&nbsp;Jahnavi Kulkarni ,&nbsp;Komal Rana ,&nbsp;Prerana Navti ,&nbsp;Ruchi Tiwari ,&nbsp;Riyaz Osmani ,&nbsp;Deepanjan Datta ,&nbsp;Mohit Angolkar ,&nbsp;Srinivas Mutalik ,&nbsp;Sudheer Moorkoth ,&nbsp;Jayvadan Patel ,&nbsp;Namdev Dhas","doi":"10.1016/j.nanoso.2024.101399","DOIUrl":"10.1016/j.nanoso.2024.101399","url":null,"abstract":"<div><div>Cancer cells require energy to carry out essential tasks, grow, and survive, like all other body cells. The pathophysiological process of cancer is a complex one. The cytotoxicity, lack of selectivity, generation of multidrug resistance, and proliferation of stem-like cells are some of the issues facing current chemotherapy. To this end, nanoconstructs with unique inherent properties, including optical, magnetic, and electrical, with a desired nano range (&lt;100 nm), have shown remarkable applications. There are numerous significant categories into which nanomaterials employed in cancer therapy can be divided. These nanomaterials, which target the immune system, tumour microenvironment, and cancer cells, have been modified for various cancer therapies to improve drug capacity and bioavailability, reduce toxicity, and improve specificity. The distinct bioactivities of inorganic metallic NPs include silver (Ag), gold (Au), cerium (Ce), iron (Fe), selenium (Se), titanium (Ti), platinum (Pt) and zinc (Zn), giving them a prominent position among other NPs. Selenium nanoparticles (SeNPs), particularly, have garnered attention due to their unique pharmacological properties. As an essential trace element, Se forms the active site in selenoproteins like selenocysteine (Sec), which regulates the physiological redox balance through its oxidoreductase activity. SeNPs have emerged as promising therapeutic agents in recent decades due to their reduced toxicity compared to Se, which has a narrow therapeutic window. SeNPs also exhibit synergistic effects with the therapeutic cargo, enhancing the anticancer activity. In this review, we have discussed the pharmacological effects of SeNPs, their pharmacological protective role against inflammation and oxidative stress-mediated conditions, and the latest advances in their synthesis and functionalization, utilized in cancer medication delivery systems, targeted drug delivery systems and gene delivery systems. In addition, we present an update on the most recent reported preclinical research involving the utilization of SeNPs in cancer treatment.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101399"},"PeriodicalIF":5.45,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142577923","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":"Nano-sized SnO2: Planar defects or particle shape anisotropy?","authors":"D.A. Yatsenko ,&nbsp;S.V. Cherepanova ,&nbsp;N.A. Sinitsa ,&nbsp;E.Yu. Gerasimov ,&nbsp;A.A. Sidelnikov ,&nbsp;A.A. Matvienko","doi":"10.1016/j.nanoso.2024.101398","DOIUrl":"10.1016/j.nanoso.2024.101398","url":null,"abstract":"<div><div>Structure and morphology of nano-sized particles of tin(IV) oxide obtained by oxidative thermolysis of tin(II) oxalate SnC₂O₄ were studied by powder X-ray diffraction and transmission electron microscopy. The X-ray diffraction pattern corresponds to cassiterite SnO₂; however, a strong broadening and a decrease in height of 110 peak are observed. Based on transmission electron microscopy data, it was assumed that planar defects are present in the SnO₂ structure. Such defects are observed in nsutite γ-MnO₂, the structure of which is disordered and represents an intergrowth of pyrolusite β-MnO₂ and ramsdellite R-MnO₂ structures. For the first time, a quantitative assessment of such defects in the SnO₂ structure was carried out by calculating X-ray diffraction patterns based on statistical models of 1D disordered nanocrystals.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101398"},"PeriodicalIF":5.45,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571345","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":"The past to the current advances in the synthesis and applications of silica nanoparticles","authors":"Abdullah Al Ragib ,&nbsp;Rupesh Chakma ,&nbsp;Junzheng Wang ,&nbsp;Yousef Mohammed Alanazi ,&nbsp;Mohanad El-Harbawi ,&nbsp;Gulshan Akter Arish ,&nbsp;Tariqul Islam ,&nbsp;Md. Abu Bakar Siddique ,&nbsp;Abu Reza Md. Towfiqul Islam ,&nbsp;Tapos Kormoker","doi":"10.1016/j.nanoso.2024.101395","DOIUrl":"10.1016/j.nanoso.2024.101395","url":null,"abstract":"<div><div>To deal with different important and updated applications like biomedical, pharmaceutical, industrial, agricultural, environmental, food, cosmetics, and even water purification, the synthetic approaches of solid silica nanoparticles (SSiNPs) and its porous variant mesoporous silica nanoparticles (MSiNPs) become a matter of attention. The outstanding non-toxic nature and exceptional properties like bio-mobilizability, easy surface modifiability, stability, micro or meso pore structure, volume, and high surface area make them versatile contributors and potential candidates in human civilization. This review article comprises a brief summarization of the synthesis of SiNPs chemically as well as through a green approach along with its noteworthy characteristics in which it is clearly shown how the functional molecules change the particle size and shape for multiple purposes. This article mainly focuses greatly effective all conventional chemical and green approaches of both silica nanoparticles (SiNPs) and MSiNPs (a total of 21 synthesis techniques). Also, the newly modified methods are cited in this review paper along with challenges and prospects. One of the most important discussions regarding sustainable, reliable, and eco-friendly (green) synthesis techniques and their available sources, advantages, and principles are mentioned in this paper. Finally, several relevant recent applications by many researchers are also noted with possible research in the industrial, chemical, agricultural, and biomedical life-related sectors. This review will help the researchers to gain the necessary information in perfect order which can be applied in the near future to invent and modify new methods on a bigger scale.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101395"},"PeriodicalIF":5.45,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571344","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":"Fabrication and characterization of Carbon Dot-induced Fe MOF for the detection and destruction of cancer cell","authors":"Sayani Maiti ,&nbsp;Suvendu Nandi ,&nbsp;Swarup Krishna Bhattacharyya ,&nbsp;Aparajita Pal ,&nbsp;Baidyanath Roy ,&nbsp;Samit Kumar Ray ,&nbsp;Mahitosh Mandal ,&nbsp;Narayan Ch. Das ,&nbsp;Susanta Banerjee","doi":"10.1016/j.nanoso.2024.101401","DOIUrl":"10.1016/j.nanoso.2024.101401","url":null,"abstract":"<div><div>Developing an effective drug delivery system that targets cancer cells while minimizing the side effects of chemotherapy continues to be a significant challenge in the field of cancer therapy. This work introduces a bio-degradable metal organic framework (MOF) scaffold system that is enhanced with carbon dots (CDs) to facilitate the precise delivery of drugs and tracing of their pathways within cancer cells. We synthesized and reduced an iron based MOF (rMOF) to enable Fenton reactions in cancer cells. The carbon dots derived from folic acid were crosslinked with the rMOF using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-hydroxysuccinimide <strong>(</strong>EDC-NHS) crosslinking chemistry to provide bio-sensing capabilities and subsequent incorporation of the anticancer drug 5 fluorouracil (5 FU) into this system for targeted anticancer activity. The rMOF-CD linkage is disrupted in acidic environments because of amine group protonation, which results in disintegration of the MOF structure and release of Fe²⁺ ions. These ions are capable of destroying cancer cells by engaging in Fenton reactions with the presence of H₂O₂ in the cells. Simultaneously, the release of CDs initiates fluorescence, which has been previously suppressed by the molecular structure. 5 FU exhibits substantial anticancer activity, as evidenced by its favourable release profile under acidic conditions (60.42 %). Cellular uptake and viability assessments of HeLa (cervical cancer) and MCF-7 (breast cancer) cell lines, as well as non-cancerous L929 cells, have produced promising results, particularly for folate rich HeLa cells. This study illustrates a novel method of bio-sensing by fluorescent CDs and targeted drug delivery, which is combined with MOF mediated destruction of cancer cells and Fenton reactions.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101401"},"PeriodicalIF":5.45,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571346","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":"QbD decorated ellagic acid loaded polymeric nanoparticles: Factors influencing desolvation method and preliminary evaluations","authors":"Priya Patel ,&nbsp;Ashish Thanki ,&nbsp;Devesh U. Kapoor ,&nbsp;Bhupendra G. Prajapati","doi":"10.1016/j.nanoso.2024.101378","DOIUrl":"10.1016/j.nanoso.2024.101378","url":null,"abstract":"<div><div>Polymeric nanoparticles are one of the emerging drug delivery systems in the field of oncology. Ellagic acid is a polyphenolic compound with vast effects like anti-cancer, anti-viral, and anti-oxidant. The ellagic acid nanoparticles was prepared by desolvation method. Formulating ellagic acid NPs using BSA enhances the stability and solubility of ellagic acid. Quality by design (QbD) based approach was adopted to improve the final quality and effectiveness of the formulation. The Critical quality attribute (CQAs) was defined and risk assessment was performed with the help of the Ishikawa fishbone diagram. Solubility analysis was done for the drug with methanol, ethanol, water, and acetone. Preliminary studies were performed to study the effect of type of desolvating agent, the concentration of polymer the pH of the polymer solution, amount of desolvating agent on the particle size and entrapment efficiency of the nanoparticles. A greater quantity of desolvating agent results in a narrower particle size because of thorough desolvation, and the increased encapsulation efficiency is linked to reduced protein-protein interactions. Desolvation process can cause the protein to gradually change structure, form clumps, and eventually form nanoparticles, so might be its shows increase in entrapment efficiency. A desolvating agent volume of 4 ml resulted in a particle size of 1724 ± 1.27 nm. When the amount of desolvating agent was increased to 6 ml and 8 ml, the particle size decreased to 160 ± 0.66 nm and 218 ± 0.47 nm, respectively. Fourier Transform Infrared Spectroscopy (FTIR) data showed no incompatibilities were observed between drug and polymer. <em>In-vitro</em> dissolution showed the nanoparticles may follow the control release pattern over 24 hours. All the formulated batches of zeta potential were found to be in the range −30 mV to +30 mV which indicated good colloidal stability of the NPs and the PDI value ranging from 0.18 to 2.8. The higher drug encapsulation of the drug was more than 50 % which gives higher drug release at a site of action and <em>in-vitro drug</em> release of more than 80 % may improve the dosage frequency. The in vitro drug release data was also studied by various kinetic models. The in vitro drug release analysis shows sustained release of drug from nanoparticles and follow Korsmeyer-Peppas model. All these findings were in good agreement which may open a new gateway for future research in the field of oral oncology.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101378"},"PeriodicalIF":5.45,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560667","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":"Impact of marine collagen on nanocosmetics: A comprehensive review","authors":"Geeta Patel,&nbsp;Heema Chokshi,&nbsp;Bhupendra Prajapati","doi":"10.1016/j.nanoso.2024.101394","DOIUrl":"10.1016/j.nanoso.2024.101394","url":null,"abstract":"<div><div>Collagen, a fundamental protein in the extracellular matrix, plays a pivotal role in maintaining skin health, elasticity, and overall appearance. In recent years, marine-derived collagen has gained significant attention due to its unique properties, sustainable sourcing, and potential applications in pharmaceuticals, drug delivery systems, food industry, biomedical and cosmetic industry. Marine collagen, derived from marine organisms, has emerged as a valuable ingredient in cosmetic formulations due to its superior biocompatibility, biodegradability, and high tensile strength. In nanocosmetics, marine collagen is often incorporated into nanoparticles to improve its delivery and efficacy. The incorporation of marine collagen in nanocosmetics not only leverages its anti-aging benefits but also enhances the stability and bioavailability of other active ingredients in the formulation. This review summarizes various properties, extraction methods, processing, purification, applications and regulatory requirements of marine collagen. Additionally, potential benefits challenges, and future directions of marine collagen nanoparticles discussed in this article would be beneficial for researchers for developing newer formulations.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101394"},"PeriodicalIF":5.45,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560665","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":"Enhanced photocatalytic performance of magnetically reclaimable N-doped g-C3N4/Fe3O4 nanocomposites for efficient tetracycline degradation","authors":"Paramasivam Shanmugam ,&nbsp;Mohan Gopalakrishnan ,&nbsp;Siwaporn Meejoo Smith ,&nbsp;Apanee Luengnaruemitchai ,&nbsp;Soorathep Kheawhom ,&nbsp;Supakorn Boonyuen","doi":"10.1016/j.nanoso.2024.101392","DOIUrl":"10.1016/j.nanoso.2024.101392","url":null,"abstract":"<div><div>The growing environmental challenge posed by the persistence of tetracycline (TC) antibiotics in natural waters is of increasing concern. To address this, there is an imperative need for advanced methods to mitigate TC residues. Herein, we demonstrate the preparation of nitrogen-doped graphitic carbon nitride integrated with magnetic Fe₃O₄ (N-g-CN/Fe₃O₄) composites, showcasing narrow band gaps optimized for TC degradation. These advanced materials, conceived through a thermal poly-condensation approach, utilize citric acid and melamine as precursors for nitrogen and g-CN, respectively. These composites exhibit a face-centered cubic architecture, with particle dimensions between 8 to 12 nm and encompassing both meso and microporous structure. The results of the Brunauer–Emmett–Teller analysis indicated specific surface areas of 6.73 m²/g for g-CN, 69.80 m²/g for N-g-CN, 62.55 m²/g for Fe₃O₄, and 148.32 m²/g for N-g-CN/Fe₃O₄. These values demonstrate an increase in surface area upon the incorporation of heteroatom of nitrogen and Fe₃O₄, into the g-CN matrix, thus influence the photocatalytic performance. Under solar light exposure, the synthesized photocatalysts demonstrated photocatalytic activity with a degradation efficiency of 94.16 % within 120 min. Specifically, the N-g-CN/Fe₃O₄ (22.5 %) composites exhibited remarkable photocatalytic efficiency due to the narrow band gap energy between N-g-CN and Fe₃O₄, enhanced light absorption in the visible range, and effective charge carrier separation and transportation to the pollutants. N-g-CN/Fe3O4 (22.5 %) composites demonstrated good recyclability (five cycles), magnetic sustainability, and stability for the degradation of TC and emerging pollutants from wastewater using photocatalysts. Similarly, FGCN composites exhibited good recyclability (five cycles), magnetic retrievability, and stability for degrading organic and emerging pollutants from wastewater through photocatalysis. This efficiency can be attributed to the harmonious combination of nitrogen doping, refined surface area, and the natural heterojunction between N-g-CN and Fe₃O₄.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101392"},"PeriodicalIF":5.45,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531467","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":"The effect of external force on the crack propagation of aluminum nanoplate using molecular dynamics approach: Insights into the fracture mechanisms of metallic nanomaterials under external loading condition","authors":"Shaymaa Abed Hussein ,&nbsp;Rassol Hamed Rasheed ,&nbsp;Murtadha M. Al-Zahiwat ,&nbsp;Abrar A. Mohammed ,&nbsp;Soheil Salahshour ,&nbsp;Sh. Baghaei","doi":"10.1016/j.nanoso.2024.101397","DOIUrl":"10.1016/j.nanoso.2024.101397","url":null,"abstract":"<div><div>It is crucial to comprehend how external forces (EFs) affect crack propagation (CP) in aluminum (Al) nanoplates to develop and create nanomaterials with enhanced mechanical characteristics. The creation of novel materials for a variety of uses, such as the aerospace, electronics, and energy sectors, may benefit from this expertise. Additionally, insights into the fracture mechanisms of nanomaterials can aid in designing more reliable and durable structures at the nanoscale. This study utilized computer models to investigate the effect of EFs on fractures in Al nanoplates. The results suggest that an EF can significantly alter CP within nanoplates. The findings provide insights into the fracture mechanisms of metallic nanomaterials under external loading conditions. Simulation results in current research showed the physical stability of modeled Al nanoplates at T=300 K as the initial temperature. Numerically, the total energy (TE) of pristine nanoplate converged to −34762.953 eV after thermodynamic equilibrium detection inside the computational box. Furthermore, the simulation results show that EF caused the crack growth procedure intensity to increase. In the present study, the crack length value increased to 33.902 Å between our modeled samples. This result led to the conclusion that in real-world applications, it is important to consider the effect of EFs on the development of cracks within Al nanoplates.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101397"},"PeriodicalIF":5.45,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531468","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}