Nano-Structures & Nano-Objects最新文献

{"title":"Unlocking potential of zinc oxide nanoparticles in enhancing topical drug delivery","authors":"","doi":"10.1016/j.nanoso.2024.101302","DOIUrl":"10.1016/j.nanoso.2024.101302","url":null,"abstract":"<div><p>This review explores the pivotal role of zinc oxide nanoparticles in advancing modern topical drug delivery. Delving into topical drug delivery systems, it addresses the significance, challenges, and current trends. The section on zinc oxide nanoparticles provides a comprehensive overview, encompassing their properties, synthesis methods, and characterization techniques, highlighting their unique advantages in drug delivery. The focal point of the review is the multifaceted application of zinc oxide nanoparticles in topical drug delivery, showcasing their effectiveness in anti-inflammatory treatments, psoriasis management, combating skin cancer, antibacterial interventions, and promoting wound healing. Intradermal application of zinc oxide nanoparticles demonstrated notable efficacy in diminishing skin infection, lowering bacterial burden, and alleviating inflammation, concurrently fostering enhancement in the structural integrity of the infected skin. To recapitulate the remarkable properties of zinc oxide nanoparticles, offer an excellent alternative for revolutionizing topical drug delivery. Their enhanced permeation, stability, and biocompatibility offer tremendous potential for improving therapeutic outcomes.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048370","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":"Ultrasonic assisted synthesis of nanoporous carbon/CeVO4 nanocomposite for supercapacitor and photocatalytic applications","authors":"","doi":"10.1016/j.nanoso.2024.101305","DOIUrl":"10.1016/j.nanoso.2024.101305","url":null,"abstract":"<div><p>Here, nanoporous carbon (NPC)/CeVO₄ nanocomposite synthesized via ultrasonic assisted method for supercapacitor and tartrazine dye degradation application. Transmission electron microscope (TEM) studies confirmed the CeVO₄ nanoparticles well embedded on the NPC surface in the NPC/CeVO₄ nanocomposite. Spherical shaped CeVO₄ nanoparticles are well incorporated on the surface of NPC therefore NPC/CeVO₄ nanocomposite which possess a porous-like structure would improve the supercapacitor applications and dye degradation performance. As expected, the specific capacitance (C_s) values (555 F g⁻¹) of NPC/CeVO₄ nanocomposite showed enhanced performance as compared to CeVO₄ nanoparticles (234 F g⁻¹) at a current density of 1 A g⁻¹ and the capacitance retention of the designed electrode as 95 % after 5000 cycles. The photodegradation of tartrazine dye using pure CeVO₄ nanoparticles and NPC/CeVO₄ nanocomposite was explored under visible light irradiation. The photocatalytic degradation experiment demonstrated that the NPC/CeVO₄ exhibits the maximum degradation efficiency (98.76 %) of the tartrazine with was reached within 120 min. Moreover, the rate constant of NPC/CeVO₄ for tartrazine dyes decomposition was 0.0192 min⁻¹ representing that it is two-fold higher than pure CeVO₄ (0.0073 min⁻¹). The superior electrochemical and photocatalytic properties of NPC/CeVO₄ nanocomposite have been observed due to the well-designed structure and high surface area. Consequently, as-prepared NPC/CeVO₄ material could be a promising material for electrochemical supercapacitor and dye degradation of the tartrazine organic pollutant.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048371","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":"Nano revolution: Exploring the frontiers of nanomaterials in science, technology, and society","authors":"","doi":"10.1016/j.nanoso.2024.101299","DOIUrl":"10.1016/j.nanoso.2024.101299","url":null,"abstract":"<div><p>Nanotechnology has emerged as a transformative force, driving breakthroughs across a wide range of fields including materials science, electronics, medicine, agriculture, and energy. This review article discusses the multifaceted landscape of nanomaterials (NMs), highlighting their profound impact across various domains. From advancements in material science to significant shifts in healthcare and environmental remediation, nanotechnology has expanded the boundaries of what is possible. We explore the synthesis, properties, and applications of NMs, showcasing their potential to revolutionize energy storage, catalysis, and drug delivery. Additionally, the societal implications of nanotechnology, addressing ethical considerations, environmental concerns, and regulatory frameworks have been discussed. As nanotechnology continues to evolve, it becomes ever more crucial to highlight its opportunities and challenges to fully harness its potential. This review provides insights into the dynamic and evolving landscape of NMs, illuminating pathways for future research and innovation.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041290","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":"Synthesis, dispersion, functionalization, biological and antioxidant activity of metal oxide nanoparticles: Review","authors":"","doi":"10.1016/j.nanoso.2024.101298","DOIUrl":"10.1016/j.nanoso.2024.101298","url":null,"abstract":"<div><p>Metal oxide nanoparticles (MONPs) have garnered significant interest due to their remarkable properties with applications in diverse fields like human health, agriculture, and general community health. This has led to their widespread use across various scientific and industrial sectors. We focused on four specific types of MONPs: iron oxide, gadolinium oxide, titanium dioxide, and zinc oxide nanoparticles due to their advantages over other metal oxides and noble metals, including cost-effectiveness, biocompatibility, and versatility. This review aimed to highlight examples of MONPs with various implementations and provide a comprehensive revision on the synthesis, dispersion, functionalization, biological and antioxidant activity of the selected MONPs. In this context, we demonstrated the applications of MONPs in various relevant domains and the impact of surface functionalization on the mechanical, optical, and electrical properties of MONPs, particularly in biological and antioxidant activities. Moreover, the volumetric, viscometric, and optical characteristics of MONPs dispersions and their stability challenges were significantly illustrated. The opportunities for MONPs in the global market based on market statistical studies were introduced in order to explore the current and future prospects for MONPs in the commercial market. This review paper offers a thorough and novel perspective on the synthesis, properties, functionalization, and applications of selected MONPs, along with their market potential, making it a valuable resource for researchers and industry professionals. Our revision has sparked interest in the scientific pursuit of uncomplicated and intuitive ideas that make use of regenerative options.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142020428","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 fractal dimension and lateral correlation length on surface plasmon resonance activity in sputtered silver layers","authors":"","doi":"10.1016/j.nanoso.2024.101294","DOIUrl":"10.1016/j.nanoso.2024.101294","url":null,"abstract":"<div><p>Fractal and optical characteristics of self-affine surfaces of silver(Ag) thin films deposited through direct current (dc) magnetron sputtering as a function of thickness are investigated and explored here. The surface morphology of Ag thin films is characterized by field emission electron microscopy, and atomic force microscopy technique. The cube counting algorithm is used to extract the fractal dimension of Ag thin film. The surface roughness (interface width) shows monotonic increases with film thickness, while the other parameters, such as lateral correlation length, roughness exponent, and fractal dimension exhibit linear variation with thickness. Our findings reveal distinctive scaling behaviors, with scaling exponents α, β, and 1/z indicating unique growth characteristics. The interface width w increases as a power law of thickness t, <span><math><mrow><mi>w</mi><mo>(</mo><mi>t</mi><mo>)</mo><mo>∝</mo><msup><mrow><mi>t</mi></mrow><mrow><mi>β</mi></mrow></msup></mrow></math></span>, with β=0.39± 0.007, and the lateral correlation length ξ grows as <span><math><mrow><mi>ξ</mi><mrow><mfenced><mrow><mi>t</mi></mrow></mfenced></mrow><mo>∝</mo><msup><mrow><mi>t</mi></mrow><mrow><mn>1</mn><mo>/</mo><mi>z</mi></mrow></msup></mrow></math></span> with 1/z=0.14± 0.002. The roughness exponent extracted from height-height correlation analysis is α=0.61–0.41. The self-affine nature of the Ag thin films is further confirmed by the autocorrelation function. X-ray photoelectron spectroscopy (XPS) is used to the confirm the growth of Ag thin film. Additionally, we have studied the role of fractal dimensions and lateral correlation length (ξ) on the surface plasmon resonance (SPR) of Ag thin film. Our results indicate a red-shifting behavior of SPR with increasing interface width (w), lateral correlation length (ξ), and fractal dimensions. This study suggests the significance of not only the roughness exponent and fractal dimension but also the local surface slope in SPR activity in Ag thin films.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141990517","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":"Kigelia pinnata fruit extract mediated green synthesis of Ce11O20/CeCu/CuO nanocomposites and their anticancer and antibacterial properties","authors":"","doi":"10.1016/j.nanoso.2024.101287","DOIUrl":"10.1016/j.nanoso.2024.101287","url":null,"abstract":"<div><p>In the current study, we used green synthesis techniques to conjugate additional metals into native nanoparticles, with an emphasis on how this altered its surface morphology and biological capabilities. It is an important turning point in the field of nanotechnology since it opens up new, dependable, environmentally friendly and manageable ways to prepare nanocomposites. This work employs a green synthetic technique to synthesize CuO nanparticles (KpCuO NPs), Ce₁₁O₂₀/CeCu/CuO nanocomposites <strong>(</strong>KpCe@CuO-5 and KpCe@CuO-10 NCs) using aqueous extract of <em>Kigelia pinnata</em> fruit. The materials were characterized by Fourier-Transform Infrared Spectroscopy (FTIR), surface area and porosity of nanocomposites analyzed with the Scanning Electronic Microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX), UV-visible spectroscopy (UV–visible), X-ray Powder Diffraction (XDR), XPS (X-ray photoelectron spectroscopy), and High-Resolution Transmission Electron Microscopy (HRTEM). The synthesized KpCuO NPs, KpCe@CuO-5 and KpCe@CuO-10 nanocomposites exhibited anticancerous activity against MDA-MB-231, HEK-293 and antimicrobial properties against <em>E. Coli</em> bacteria. These samples also demonstrated their bio-potency by preventing the migration and proliferation of cells, decreasing the number of colonies, and triggering cell cycle arrest and programmed cell death. All of these findings suggest that KpCuO NPs and KpCe@CuO NCs have therapeutic potential to treat triple negative breast cancer (TNBC).</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985417","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 role of urethane acrylate in improving the elasticity of nano chitosan UV-curable hydrogel nanocomposite","authors":"","doi":"10.1016/j.nanoso.2024.101293","DOIUrl":"10.1016/j.nanoso.2024.101293","url":null,"abstract":"<div><p>In recent years, hydrogels based on acrylic acid and acrylamide have been widely used for easy polymerization and biocompatibility. On the other hand, due to energy saving and high reaction speed, curing systems with ultraviolet radiation have been expanded, which are considered in this study for synthesizing hydrogels and the flexible agent of the hydrogel network. The strength and stability of hydrogels are among the problems that are considered in their construction, and the strength of the network against solvent absorption leads to their many uses. In this study, the use of urethane acrylate as a flexible network agent has been used in the construction of a UV-curable hydrogel. For this purpose, at first, urethane acrylate with polyethylene glycol, isophorone diisocyanate, and hydroxyethyl methacrylate was synthesized and, after characterization, used in the hydrogel structure. The hydrogels were synthesized using an equal ratio of acrylamide and acrylic acid, various percentages of nano-chitosan (3, 6, 9, and 11), photo-initiator, and water under ultraviolet radiation. The accuracy of the hydrogel chemical structure was confirmed by FTIR analysis. The swelling ability and fluidity behavior of prepared hydrogels were investigated by weight measurement test and rheometry. According to the rheological test results and swelling capability, the sample containing 6 % w/w nano-chitosan was selected as the optimum sample. Then, the effect of urethane acrylate with different amounts of 10, 20, and 30 % on the swelling ability and elasticity behavior of hydrogels was studied. The results showed that hydrogel containing 10 % by weight of urethane acrylate had a four-fold equilibrium swelling with preservation of the network's structure.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141978863","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":"Synergistic strategies in MOF on MOF photocatalysts: Review on exploring sustainable hydrogen generation from water splitting","authors":"","doi":"10.1016/j.nanoso.2024.101295","DOIUrl":"10.1016/j.nanoso.2024.101295","url":null,"abstract":"<div><p>Hydrogen is seen as a very promising, environmentally friendly, and sustainable energy carrier, presenting an appealing substitute for fossil fuels. Photocatalysis, derived hydrogen from water splitting, is often regarded as the most effective method for meeting long-term sustainability goals and satisfying growing energy needs. This article provides a concise overview of the process by which hydrogen is produced by water splitting, using various MOFs and MOF on MOF photocatalysts. MOFs are a very promising category of porous crystalline materials that exhibit a wide range of uses. The extensive investigation of MOFs has resulted in the development of MOF on MOF hybrid materials. This study also elucidates the synthetic approaches that explain the interaction between the host and guest MOFs. Next, the text delves into a comprehensive analysis of the structural variety to showcase how MOF on MOF hybrids facilitates progress in photocatalytic applications. Despite their potential, MOFs still face several constraints that need to be addressed. This work emphasizes the main obstacles in the area of water splitting and suggests the potential use of photocatalysts for this purpose. The extensive surface area of MOF on MOF hybrids also amplifies hydrogen generation during photocatalysis, assisted by effective separation and transmission of electron holes. These photocatalysts generate environmentally friendly hydrogen from water, promoting global progress without causing damage to the environment and perhaps contributing to the development of renewable energy sources. The review concludes by examining possible avenues for future research in the field of photocatalysis for the production of sustainable hydrogen as an energy source.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963793","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":"Synthesis of Chi-sphere silver nanocomposite and nanocomposites of silver, gold, and S@G using a chitosan biopolymer extracted from potato peels and their antimicrobial application","authors":"","doi":"10.1016/j.nanoso.2024.101297","DOIUrl":"10.1016/j.nanoso.2024.101297","url":null,"abstract":"<div><p>Chitin and chitosan have been proven to have numerous applications in biomedical, pharmaceutical, and industrial fields. In the present study, chitin structural polymer was extracted from potato peel wastes by the use of chemical methods and chitosan biopolymer was generated through the deacetylation of the isolated potato peel chitin. On a dry weight basis, the yield of chitin content of the potato peel wastes is 49.80±1.2 % and the yield of deacetylated potato peel chitin (potato peel chitosan) is 47.60±1.8 %. It was characterized by FTIR and ¹H NMR studies. Consequently, the potato peel chitosan was employed in the synthesis of Chitosan-Silver-Nanocomposite-Sphere (Chi-SNC-Sphere), and other metal nanocomposite of silver (C.g-CSNCs), gold (C.g-CGNCs), and bimetallic (C.g-CS@GNCs). The physicochemical features of the resulting products were characterized using UV-Vis, FT-IR, PXRD, FESEM, TEM, and EDAX. The FESEM unveiled a smooth, spherical, and nonporous surface morphology of the synthesized Chi-SNCs-Sphere, while the remaining three have surfaces that appeared in the form of flakes. As per TEM images, particles were visible in black-spherical (C.g-CSNC) and black-multi-shapes (C.g-CSNC, C.g-CS@GNC) nanostructures. Their sizes were confined within the range of 1–10 nm, with average values of 4.36 nm±0.40–5.85 nm±0.42. On the basis of BET analysis, C.g.CSNCs C.g-CS@GNC and C.g.CGNCs under identical conditions possess the surface area of 69.92 m²g^−1, 52.35 m²g⁻¹, and 49.75 m²g⁻¹ respectively. The nanomaterials were found stable as revealed by the study of zeta potential which is found in the range of +41.3–56.2. The results of the bioassay for antibacterial activity against <em>P. aeruginosa</em> and <em>S. aureus</em> uncovered that the Chi-SNCs-Sphere, C.g-CSNCs, and C.g-CS@GNCs demonstrated superior activities than C.g-CGNCs. According to statistical analysis results of one-way ANOVA of antibacterial results against <em>S. aureus</em>, the P-value F- calculated F-critical was 0.99,1.5 and 3.4 and for <em>P. aeruginosa</em>; P-value, F-calculated, F-critical was 0.80, 0.22 and 5.94 respectively. Minimum inhibitory concentration (MIC) was found most significant for C.g-CSNC (20 µg/mL) due to its higher surface area. These activities could be attributed to the synergistic effect of the metal nanoparticles, potato peel chitosan, and the plant extract that was used for the reduction, stabilization, and biofunctionalization.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964031","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":"Unlocking potential: Recent advances in MXene supercapacitors for flexible energy storage devices","authors":"","doi":"10.1016/j.nanoso.2024.101290","DOIUrl":"10.1016/j.nanoso.2024.101290","url":null,"abstract":"<div><p>Flexible Supercapacitors (SCs) are emerging as sustainable solution to meet the growing demand of robust energy storage systems for intelligent wearable electronic gadgets (IWEGs) because of their benefits, which include high power density and quick charging/discharging. Choice of materials for the fabrication of flexible supercapacitors requires a critical understanding of material properties, mechanism of charge storage, and fabrication techniques. MXenes-a promising family of two-dimensional (2D) materials is emerging as an excellent choice for fabricating flexible electrodes for supercapacitor due to their outstanding hydrophilicity, high surface area, and high conductivity. This review unlocks the potential of this intriguing material as conductive electrodes for flexible supercapacitors. New developments in the use of MXenes and their composites, to create flexible electrodes has been discovered. This review also sheds light on material choices of electrolytes, flexible substrates, and current collectors. A critical understanding of energy storage mechanism with respect to types of ions has also been elaborated. Finally, the advances in some wearable electronic devices based on MXene flexible supercapacitors are discussed. This review highlights the potential of MXenes to offer effective and adaptable energy storage solutions that can completely transform wearable electronics.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.45,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963792","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}