Discover nano最新文献_第4页

The fundamentals of synthesis of the nanomaterials, properties, and emphasis on laser ablation in liquids: a brief review. 纳米材料合成的基本原理，性质，并强调在液体激光烧蚀：简要回顾。

Discover nano Pub Date : 2025-06-24 DOI: 10.1186/s11671-025-04235-5

G Krishna Podagatlapalli

{"title":"The fundamentals of synthesis of the nanomaterials, properties, and emphasis on laser ablation in liquids: a brief review.","authors":"G Krishna Podagatlapalli","doi":"10.1186/s11671-025-04235-5","DOIUrl":"10.1186/s11671-025-04235-5","url":null,"abstract":"Materials whose dimensions are less than 100 nm of diverse sizes and different shapes of the metal/semiconductor/insulator particles are known as nanomaterials. Nanomaterials exhibit very peculiar thermal, mechanical, electrical, optical, and chemical properties compared to their bulk counterparts. When a bulk material is chopped to a nano-dimension, electrons are subjected to peculiar boundary conditions, eventually leading to the nanomaterials' special properties. Due to their exceptional properties, nanomaterials have unique applications in all branches of science. Consequently, the researchers explored many methods of synthesis of the nanomaterials. However, each method has its advantages and disadvantages, some methods are flexible in synthesizing nanoparticles with uniform size distribution and some are feasible to produce nanomaterials at higher yields. Different methods follow their own synthesis protocols, time durations, economical feasibility, and reproducibility. Most methods complement one another by producing nanomaterials of evenly distributed sizes, shapes, properties, etc. Amongst, the, laser ablation of metals/semiconductors/insulators immersed in a liquid medium is a well-known method of green synthesis of nanomaterials that utilizes no hazardous chemical precursors. Laser ablation in liquids (LAL) combines top-down and bottom-up approaches that do not require lengthy sample preparations, chemical surfactants, and sophisticated experimental methodologies. The physical processes involved in the LAL of different metals/semiconductors are discussed briefly. Additionally, the applications of nanomaterials in various fields of science are included and the review is concluded with the challenges and the future scope of LAL.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"98"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187634/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478061","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}

引用次数: 0

Emerging trends and perspectives on nano-fertilizers for sustainable agriculture. 可持续农业纳米肥料的新趋势和前景。

Discover nano Pub Date : 2025-06-20 DOI: 10.1186/s11671-025-04286-8

Ankush Goyal, Sachin S Chavan, Rajendra A Mohite, Israr A Shaikh, Yogesh Chendake, Dadaso D Mohite

{"title":"Emerging trends and perspectives on nano-fertilizers for sustainable agriculture.","authors":"Ankush Goyal, Sachin S Chavan, Rajendra A Mohite, Israr A Shaikh, Yogesh Chendake, Dadaso D Mohite","doi":"10.1186/s11671-025-04286-8","DOIUrl":"10.1186/s11671-025-04286-8","url":null,"abstract":"The intensifying global demand for agricultural products has been met with the excessive use of conventional fertilizers, leading to significant environmental pollution, soil and water degradation, and public health concerns. This challenge has been further exacerbated by the pressures of globalization, necessitating the adoption of more sustainable and efficient farming practices. As a promising solution to these issues, nanotechnology has been explored for its innovative approaches to enhance nutrient delivery and reduce environmental impact. In this review, the potential of various nano-fertilizers-including nano-NPK, nano-nitrogen (N), nano-phosphorous (P), nano-potassium (K), nano-iron (Fe), hydroxyapatite (HAP)-modified urea nanoparticles, and nano-zeolite composite fertilizers-has been investigated for improving crop productivity and sustainability. The applications in key crops such as wheat, potato, maize, and rice have been analyzed, with significant yield improvements reported: 20-55% for wheat, 20-35% for potato, 20-40% for maize, and 13-25% for rice. Additionally, grain yield enhancements of 20-55% for wheat, 22-50% for maize, and 30-40% for rice have been observed. It has been emphasized that the optimization of nano-fertilizer concentrations and application methods is crucial to ensure plant health and environmental safety. The transformative role of nano-fertilizers in advancing sustainable agriculture to address global food security challenges has been underscored.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"97"},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12181588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334537","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}

引用次数: 0

2009-2023 Bibliometric analysis of the clinical value of graphene quantum dots in glioblastoma treatment. 2009-2023石墨烯量子点在胶质母细胞瘤治疗中的临床价值文献计量学分析。

Discover nano Pub Date : 2025-06-18 DOI: 10.1186/s11671-025-04277-9

Jingyan Zhu, Xiaoqing Li, Zhenhua Lin, Linzhuo Qu, Hongjian Guan

{"title":"2009-2023 Bibliometric analysis of the clinical value of graphene quantum dots in glioblastoma treatment.","authors":"Jingyan Zhu, Xiaoqing Li, Zhenhua Lin, Linzhuo Qu, Hongjian Guan","doi":"10.1186/s11671-025-04277-9","DOIUrl":"10.1186/s11671-025-04277-9","url":null,"abstract":"Glioblastoma (GBM) is the most common primary brain tumour in adults and poses a serious health risk. Graphene quantum dots (GQDs) are zero-dimensional crystalline discs de-rived from two-dimensional graphene, which contribution of GQDs in the treatment of GBM and the great potential for future development. In this study, the Web of Science database was applied to search 462 relevant papers published between 2009 and 2023, and analyzed using VOS viewer and CiteSpace software tools. This analysis aims to provide researchers with insights into the current state of applications and to facilitate a clearer understanding of potential pathways and directions for future research in this field. Our study showed a continuous increase in the number of papers about GQDs in the treatment of GBM. In the field for more than a decade, GQDs has been a research priority in drug delivery due to their excellent optical and chemical properties. It is reasonable to believe that the use of GQDs for drug delivery for the treatment of GBM will be-come one of the extremely important research topics in the future.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"96"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12177112/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327965","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}

引用次数: 0

Gamma radiolytically synthesized phosphate decorated gold nanoparticles for ultra-trace level detection of U(VI) in water. 伽玛放射性合成磷酸盐修饰金纳米粒子用于水中超痕量U（VI）的检测。

Discover nano Pub Date : 2025-06-16 DOI: 10.1186/s11671-025-04275-x

Nilanjal Misra, Swarnima Rawat, Shubhangi A Shelkar, Ayan Ghosh, Sanjay Kumar, Virendra Kumar

{"title":"Gamma radiolytically synthesized phosphate decorated gold nanoparticles for ultra-trace level detection of U(VI) in water.","authors":"Nilanjal Misra, Swarnima Rawat, Shubhangi A Shelkar, Ayan Ghosh, Sanjay Kumar, Virendra Kumar","doi":"10.1186/s11671-025-04275-x","DOIUrl":"10.1186/s11671-025-04275-x","url":null,"abstract":"We describe the 60Co-Gamma radiolytic synthesis of stable poly(bis[2-(methacryloyloxy)ethyl] phosphate) (PB2MEP) -decorated gold nanoparticles (PB2MEP-Au) for spectrophotometric detection of uranium (U(VI)) in the ppb level. The developed technique is based on the Localize Surface Plasmon Resonance (LSPR) band intensity quenching, accompanied by a red shift in the wavelength range 523-545 nm at higher concentrations, due to interaction between U(VI) ion and phosphate group bearing PB2MEP-Au. The response was linear in the 5-80 ppb U(VI) concentration range, with LOD of 8.6 ppb. Samples were characterized by transmission electron microscopy, Particle Size Analysis and Zeta Potential measurements to determine morphological transitions upon analyte interaction. Density Functional Theory (DFT) calculations were invoked to study the Au nanoparticle stabilization mechanism, and revealed the interaction of U(VI) with PB2MEP-Au to be thermodynamically spontaneous for the formation of [UO2(B2MEP)2(H2O)]2+ complex, the stability primarily driven by entropy. Interference by other coexisting metal ions was negligible up to interferent:target ratios of 10:1. The method was validated through quantification of U(VI) in water samples spiked with known U(VI) concentrations, the results being in corroboration with those reported using laser fluorimetric method. A T-test confirmed the results derived from the proposed method were not significantly different from those obtained using the standard estimation protocol at a 95% confidence level.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"95"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170492/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303782","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}

引用次数: 0

Carbon nanotubes and graphene as counter electrodes in dye-sensitized solar cells. 碳纳米管和石墨烯作为染料敏化太阳能电池的对电极。

Discover nano Pub Date : 2025-06-16 DOI: 10.1186/s11671-025-04279-7

Simon Bbumba, Moses Kigozi, Ibrahim Karume, Solomon Yiga, Hussein Kisiki Nsamba, Muhammad Ntale

{"title":"Carbon nanotubes and graphene as counter electrodes in dye-sensitized solar cells.","authors":"Simon Bbumba, Moses Kigozi, Ibrahim Karume, Solomon Yiga, Hussein Kisiki Nsamba, Muhammad Ntale","doi":"10.1186/s11671-025-04279-7","DOIUrl":"10.1186/s11671-025-04279-7","url":null,"abstract":"Addressing the global demand for cost-effective and sustainable energy sources, dye-sensitized solar cells (DSSCs) have emerged as a promising alternative to conventional silicon-based photovoltaics. However, the use of platinum which is a rare and expensive counter electrode (CE) hinders the widespread application of DSSCs, necessitating the use of cheap, abundant, and efficient materials. The review therefore focuses on carbon-based nanomaterials specifically carbon nanotubes (CNTs) and graphene as CEs in DSSCs. The CE plays a vital role in regenerating the redox couple, and its charge transfer resistance (Rct) should ideally be 1 Ω cm² for optimal performance. Carbon nanotubes comprising single-walled carbon nanotubes (SWCNTs), double-walled carbon nanotubes (DWCNTs), and multiwalled carbon nanotubes (MWCNTs) are mainly prepared by chemical vapor deposition (CVD). The SWCNTs have achieved an efficiency of 7.79%, comparable to platinum electrodes, and this was due to the morphology, which influenced the redox mediator regeneration but also reduced the Rct. In addition, graphene with high transparency (97.7%), large specific surface area (2630 m2 g- 1), excellent thermal conductivity (3000 W m- 1 K- 1), and good carrier mobility properties (10,000 cm2 V- 1 S- 1) have also been applied. In this, the Graphene nanosheets demonstrated a 6.81% efficiency, comparable to platinum (7.59%) due to a high open circuit voltage (Voc), which accounts for the reduction of iodide/triiodide redox couple. Lastly, the Graphene nanoplatelets demonstrated a 9.3% efficiency comparable to that of Platinum 7.53% due to low charge transfer resistance, high electrocatalytic activity, and good fill factor.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"94"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170987/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303781","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}

引用次数: 0

Nose to brain delivery of nanostructured lipid carriers loaded with rivastigmine and nilotinib for treating Alzheimer's disease: preparation, cell line study, and in vivo evaluation. 鼻到脑输送纳米结构脂质载体，装载利瓦斯汀和尼罗替尼治疗阿尔茨海默病：制备、细胞系研究和体内评估

Discover nano Pub Date : 2025-06-13 DOI: 10.1186/s11671-025-04276-w

Saif Ahmad Khan, Zufika Qamar, Sunil Kamboj, Mohammad Moonis, Garima Rai, Shweta Dang, Pirthi Pal Singh, Ozair Alam, Suhel Parvez, Sanjula Baboota, Javed Ali

{"title":"Nose to brain delivery of nanostructured lipid carriers loaded with rivastigmine and nilotinib for treating Alzheimer's disease: preparation, cell line study, and in vivo evaluation.","authors":"Saif Ahmad Khan, Zufika Qamar, Sunil Kamboj, Mohammad Moonis, Garima Rai, Shweta Dang, Pirthi Pal Singh, Ozair Alam, Suhel Parvez, Sanjula Baboota, Javed Ali","doi":"10.1186/s11671-025-04276-w","DOIUrl":"10.1186/s11671-025-04276-w","url":null,"abstract":"Alzheimer's disease (AD) is a complex neurodegenerative that affects over 55 million people worldwide, a number expected to double by 2050 due to aging populations. This growing prevalence imposes immense societal and economic burdens on healthcare systems and caregivers. AD is challenging to treat with monotherapy, making combination therapy a more effective approach. This study focuses on delivering Rivastigmine tartrate (RIV), and Nilotinib hydrochloride monohydrate (NIL), to the brain to achieve synergistic effects against AD. The optimal ratio of the drug combination was determined using the combination index that was performed using the Neuro2a cells line. It was found to be 1:1, emphasizing the synergistic effect against the cell lines. So, nanostructured lipid carriers (NLCs) were loaded with RIV and NIL, both individually and in combination, developed and optimized in this study. The developed formulations were thoroughly characterized for globule size, polydispersity index (PDI), and entrapment efficiency (EE) for each drug and the combination. The globule size was > 200 nm, PDI > 0.3; EE < 85% in all the developed formulations. On performing an in vitro cell availability study it was found that developed NLCs showed a 1.3 to 1.4-fold increase in the viability of the cells. On conducting an in vivo study, the concentration in the brain following administration of different formulations was in the order of RIV-NIL-NLC > NIL-NLC > RIV-NLC > RIV-NIL SUS > NIL-SUS > RIV-SUS. There was a 3.5 to 5-fold increase in the concentration of RIV and NIL in the brain when administered as RIV-NIL-NLC. So, it can be concluded that the NLCs with combined drugs showed promising results, enhancing drug permeability through the intranasal route, therefore could be used for treating AD.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"93"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12165938/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287428","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}

引用次数: 0

Camellia sinensis mediated silver nanoparticles: eco-friendly antimicrobial agent to control multidrug resistant Gram-positive Staphylococcus aureus. 山茶介导的纳米银：控制多重耐药革兰氏阳性金黄色葡萄球菌的环保型抗菌剂。

Discover nano Pub Date : 2025-06-12 DOI: 10.1186/s11671-025-04278-8

Tasneem Juzer, Ranjani Soundharajan, Hemalatha Srinivasan

{"title":"Camellia sinensis mediated silver nanoparticles: eco-friendly antimicrobial agent to control multidrug resistant Gram-positive Staphylococcus aureus.","authors":"Tasneem Juzer, Ranjani Soundharajan, Hemalatha Srinivasan","doi":"10.1186/s11671-025-04278-8","DOIUrl":"10.1186/s11671-025-04278-8","url":null,"abstract":"Staphylococcus aureus provokes several clinical infections, and its treatment remains challenging due to the rise of multidrug-resistant strains. In the current scenario it's a vital need for alternative strategies to control the spread of MDR S. aureus. Therefore, considerable effort has been put forth to develop green nanoparticles. Camellia sinensis is enriched with phytocompounds with potent antibacterial properties. Green synthesis strategy is more sustainable and non-toxic compared to traditional chemical processes. CsAgNps was synthesized by mixing 1 part of fresh extract of C. sinensis extract with 2 parts of 1mM silver and employing photocatalytic reduction for the period of 8 h until visible colour change was observed. Synthesized CsAgNps were characterized by employing various techniques to study the size, charge, topography and elemental composition. According to the findings of the in-silico analysis, phytocompounds of C. sinensis including Protopine, Ellagic acid, Catechin and Techtochrysin were recognized as potential lead compounds against various virulent targets in S. aureus. CsAgNps were tested for its antimicrobial and antibiofilm activity in MDR and MTCC (1430). The study results showed that it controls growth and biofilm formation of strains at the concentration of 12.5 µg/mL. The potential lead compounds against various virulent targets in S. aureus were analyzed using in-silico technique. Future research in the development of healthcare products will focus on optimization of ecofriendly material with targeted and sustainable release and enhancing antimicrobial efficacy particularly on MDR pathogens. CsAgNps can be incorporated to develop nano-based health care products to control antibiotic resistant S. aureus infections.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"92"},"PeriodicalIF":0.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12162455/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144276923","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}

引用次数: 0

Synthesis of 2D Tungsten disulphide WS₂ for biosensing: a unique perspective on emerging applications. 用于生物传感的二维二硫化钨WS2的合成：新兴应用的独特视角。

Discover nano Pub Date : 2025-06-10 DOI: 10.1186/s11671-025-04269-9

Chih-Chiang Wang, Arvind Mukundan, Riya Karmakar, Kadu Samarth Jalindra, Hsiang-Chen Wang

{"title":"Synthesis of 2D Tungsten disulphide WS2 for biosensing: a unique perspective on emerging applications.","authors":"Chih-Chiang Wang, Arvind Mukundan, Riya Karmakar, Kadu Samarth Jalindra, Hsiang-Chen Wang","doi":"10.1186/s11671-025-04269-9","DOIUrl":"10.1186/s11671-025-04269-9","url":null,"abstract":"Two-dimensional (2D) materials have garnered momentous consideration owing to their inimitable structural and physiochemical properties, enabling diverse technological applications. Tungsten disulfide (WS2), a prominent transition metal dichalcogenide, exhibits exceptional characteristics such as a tunable bandgap, large surface area, and strong biocompatibility, making it highly suitable for biosensing applications. This review explores various WS2 synthesis techniques, including mechanical exfoliation, sonication, and chemical exfoliation, highlighting their impact on nanosheet quality and scalability. Furthermore, it examines WS2's role in biosensing, particularly in cancer biomarker detection, DNA/RNA sensing, enzyme activity monitoring, and pathogen identification. Despite its promising applications, challenges such as oxidation, long-term stability, and large-scale synthesis persist. Future advancements in hybrid nanostructures, functionalization techniques, and AI-assisted biosensing are expected to enhance WS2's reliability and expand its practical deployment. By addressing these challenges, WS2-based technologies can drive significant innovations in diagnostics and environmental monitoring.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"91"},"PeriodicalIF":0.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12151925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259460","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}

引用次数: 0

Harnessing silicon nanoparticles and various forms of silicon for enhanced plant growth performance under salinity stress: application and mechanism. 利用硅纳米颗粒和各种形式的硅提高盐胁迫下植物的生长性能：应用和机制。

Discover nano Pub Date : 2025-05-29 DOI: 10.1186/s11671-025-04270-2

Khwaja Salahuddin Siddiqi, Azamal Husen, Noreen Zahra, Abdul Moheman

{"title":"Harnessing silicon nanoparticles and various forms of silicon for enhanced plant growth performance under salinity stress: application and mechanism.","authors":"Khwaja Salahuddin Siddiqi, Azamal Husen, Noreen Zahra, Abdul Moheman","doi":"10.1186/s11671-025-04270-2","DOIUrl":"10.1186/s11671-025-04270-2","url":null,"abstract":"Agricultural production faces significant losses due to salinity, drought, pests, insects, and weeds, particularly in nutrient- and fertilizer-deficient soils. This review focuses on enhancing the productivity of crops grown in dry and saline environments. Silicon nanoparticles (Si NPs) and silicon compounds (SiO₂/SiO₃2⁻) have shown potential to improve crop yields while mitigating the effects of biotic and abiotic stresses. As an eco-friendly alternative to chemical fertilizers, herbicides, and pesticides, Si NPs stimulate germination, plant growth, biomass accumulation, and nutrient absorption due to their small size, large surface area, and ease of cellular penetration. These nanoparticles reduce salinity stress by modulating gene expression, leading to the activation of antioxidant enzymes such as SOD, CAT, and APX, which help combat reactive oxygen species (ROS). Treatment with low concentrations of nano-silica (100-300 mg/L) significantly enhances plants' tolerance to salinity. Si NPs, when combined with soluble polymeric materials and rhizobacteria, provide a sustainable impact due to their slow-release properties, offering prolonged protection against bacterial and viral infections under saline stress conditions.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"89"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12123022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144175911","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}

引用次数: 0

Synthesis of silver nanoparticles from pure and combined extracts of Satureja bachtiarica Bung. and Satureja hortensis L. effective on some microbial strains causing digestive diseases. 银纳米粒子的合成与纯化。对一些引起消化系统疾病的微生物菌株有效。

Discover nano Pub Date : 2025-05-29 DOI: 10.1186/s11671-025-04271-1

Parastoo Alipour Samani, Mansureh Ghavam

{"title":"Synthesis of silver nanoparticles from pure and combined extracts of Satureja bachtiarica Bung. and Satureja hortensis L. effective on some microbial strains causing digestive diseases.","authors":"Parastoo Alipour Samani, Mansureh Ghavam","doi":"10.1186/s11671-025-04271-1","DOIUrl":"10.1186/s11671-025-04271-1","url":null,"abstract":"The biological method, which is also called green synthesis, is a safe, cheap and environmentally friendly method. The present study was designed for the first time with the aim of synthesizing silver nanoparticles from pure and mixed extracts of Satureja bachtiarica Bung. and Satureja hortensis L. The extraction of plants was done by boiling water and the synthesis of silver nanoparticles was investigated by UV-VIS, XRD, FTIR and FESEM tests. Antibacterial effect of synthesized silver nanoparticles and extracts was evaluated by diffusion method in agar and determination of the minimum inhibitory concentration and bactericidal concentrations (MIC and MBC). The examination of the UV test confirmed the spectrum of 393-422 nm related to surface plasmon resonance absorption. XRD test determined the silver particle size of S. bachtiarica + S. hortensis more than two species S. bachtiarica and S. hortensis and 14.4 nm. FTIR spectroscopy identified OH, CH, C =C, CH3, CH, C-O groups. The results of FESEM showed that the shape of the particles is mostly quasi-cubic or prism-like.. Energy dispersive X-ray spectroscopy (EDX) also showed an absorption peak of silver at 3 keV. The strongest inhibitory activities related to synthetic silver nanoparticles from S. bachtiarica extract against Gram-negative bacteria Escherichia coli (~ 10 mm) and silver nanoparticles synthesized from combined extract of S. bachtiarica + S. hortensis against Gram-negative bacteria Shigella dysenteriae (~ 9 mm), which matched the control antibiotics rifampin. Therefore, it seems that the pure extract of S. bachtiarica or the combination with the extract of S. hortensis is a natural potential for the synthesis of silver nanoparticles with significant antibacterial activity, which can be a possible substitute for antibiotics against some strains. However, much research needs to be done in the future to confirm this for clinical applications.","PeriodicalId":72828,"journal":{"name":"Discover nano","volume":"20 1","pages":"90"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12122941/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144182345","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}

引用次数: 0