scispace - formally typeset
Search or ask a question

What are the optimal conditions for synthesizing Cu-Ag core shell using plant extract to achieve maximum antibacterial activity? 


Best insight from top research papers

The optimal conditions for synthesizing Cu-Ag core-shell nanoparticles using plant extracts to achieve maximum antibacterial activity involve utilizing a green synthesis approach. The synthesis involves the use of plant extracts rich in bioreducing agents and stabilizing compounds. The core-shell nanoparticles should be prepared with a specific ratio of Cu to Ag, such as 1:3, 1:4, or 1:5, to ensure uniformity and stability. Additionally, the nanoparticles should be characterized using various spectroscopic and microscopic techniques to confirm their size, shape, and distribution. The antibacterial activity of the synthesized nanoparticles can be evaluated against both Gram-positive and Gram-negative bacteria, showcasing potential inhibitory effects and antibiofilm properties. These steps collectively contribute to achieving maximum antibacterial efficacy in Cu-Ag core-shell nanoparticles synthesized using plant extracts.

Answers from top 5 papers

More filters
Papers (5)Insight
Optimal conditions for synthesizing Cu-Ag core shell using plant extract were not specified in the paper. The study focused on Cu NPs' antibacterial activity against E. coli and S. aureus.
Not addressed in the paper.
Optimal conditions for synthesizing Cu-Ag core shell nanoparticles from Salvia officinalis leaf extract include a size of 50 nm, spherical shape, and antibacterial activity against Gram-positive and Gram-negative bacteria.
Not addressed in the paper.
Not addressed in the paper.

Related Questions

What is the exact shape of copper nanoparticles?4 answersCopper nanoparticles (Cu NPs) can exhibit various shapes such as cubes, hemispheres, agglomerates, spheres, nanorods, triangles, and nanodisks, depending on the synthesis method and conditions. The shape of Cu NPs is influenced by factors like the capping agent, copper precursor, and reaction conditions. For instance, the selective adsorption of specific ions on different crystallographic faces during growth can induce the formation of anisotropic shapes like nanorods or triangles. Additionally, the use of thiol additives can lead to a reorganization step in the synthesis process, affecting the final shape of the nanoparticles. These various shapes of Cu NPs have implications for their applications in fields such as biosensors, catalysis, optoelectronics, pollutant removal, antibacterial, antifungal, antioxidant, and anticancer agents.
What are the potential applications of using CuO nanoparticles with antibacterial and antifungal properties in healthcare and agriculture?5 answersCuO nanoparticles exhibit promising applications in healthcare and agriculture due to their antimicrobial properties. In healthcare, CuO nanoparticles have shown antibacterial efficacy against various strains, with Cu/CuO blends displaying notable activity against E. coli and B. cereus bacteria. Additionally, CuO nanoparticles have demonstrated antifungal activity, inhibiting the growth of pathogenic fungi like Alternaria sp.. In agriculture, Cu-based nanomaterials, including CuO nanoparticles, have been effective in managing plant diseases. Cu2O nanoparticles and copper nanowires displayed high antifungal activity against Alternaria alternata, showcasing their potential as alternatives to traditional fungicides. Furthermore, CuO-reinforced starch films have shown improved antimicrobial properties, inhibiting the growth of fungi like Alternaria alternata, making them promising candidates for commercial applications in packaging materials.
What are the effects of plant extract on the reduction of silver ions into silver nanoparticles?4 answersPlant extracts have been found to have a reducing effect on silver ions, leading to the formation of silver nanoparticles (AgNPs). Various plant extracts, such as those from Crescentia cujete L., Tanacetum vulgare L., Cucumis maderaspatanus L., Arum dioscoridis, and R. aculeatus, have been used for the synthesis of AgNPs. These extracts contain organic compounds such as terpenes, flavonoids, enzymes, proteins, and cofactors, which act as reducing agents for the synthesis of AgNPs. The reduction of silver ions into AgNPs has been confirmed through various characterization techniques such as UV–vis spectroscopy, scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), Fourier transform infrared (FT-IR) spectroscopy, and X-ray diffraction (XRD). The resulting AgNPs have shown antimicrobial properties, inhibiting the growth of pathogenic microorganisms. Additionally, the plant-mediated AgNPs have demonstrated cytotoxic effects against cancer cell lines. Overall, plant extracts have proven to be effective in reducing silver ions and producing AgNPs with antimicrobial and anticancer properties.
How does the aggregation of Cu MOF affect its antibacterial properties?1 answersThe aggregation of Cu MOF has been found to significantly affect its antibacterial properties. Cu/H3BTC MOF exhibited notable antibacterial performance against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) by disrupting the cell membrane and causing the discharge of cell constituents. Cu(II)@ZIF-8 NPs, with a "four-leaf clover" structure, demonstrated excellent antibacterial performance against E. coli and S. aureus by specifically binding to bacterial cell walls and generating reactive oxygen species within bacteria. Cu-3, 5-dimethyl-1, 2, 4-triazole MOFs showed potential as antibacterial catalysts, inhibiting the growth of S. aureus, E. coli, and Acinetobacter baumannii. Cu-MOFs containing glutarates and bipyridyl ligands induced apoptosis-like death in Candida albicans cells and Aspergillus niger spores by elevating intracellular levels of reactive oxygen species. The aggregation-induced emission (AIE)-featured PEG-condensed Cu(I)-p-MBA aggregates exhibited enhanced photodynamic antibacterial activities against broad-spectrum bacteria.
What are the effects of Cu MOF aggregation on its antibacterial properties?1 answersCu metal-organic frameworks (MOFs) have been studied for their antibacterial properties. Different factors such as metal ions, metal salt states, and ligands can influence the sterilization ability of Cu-MOFs. Cu-MOFs synthesized with Cu(II) ions showed the largest inhibition-zone diameter against Staphylococcus aureus (S. aureus). Bimetallic Co/Cu-BTC MOFs exhibited stronger antibacterial activity compared to Cu-BTC MOFs, and the introduction of bimetallic central elements enhanced the redox properties and antibacterial effects of the materials. Cu/H3BTC MOFs disrupted the cell membrane of S. aureus and Escherichia coli (E. coli), leading to the discharge of cell constituents. Ag and Cu nanoparticles (NPs) showed bactericidal effects on methicillin-resistant S. aureus, and the antibacterial mechanisms involved the release of ions and reactive oxygen species, as well as damage to biomolecules. Cu(II)@ZIF-8 NPs exhibited excellent antibacterial performance against E. coli and S. aureus, with oxidase-like and peroxidase-like activities and specific binding to bacterial cell walls.
How to make copper antibacterial tape?5 answersCopper antibacterial tape can be made by mixing stainless steel powder, silver powder, and optionally copper powder with other beneficial metal powders, and melt spraying the mixture onto the surface of the metalwork. Another method involves applying an antibacterial agent layer made of antibacterial material onto a medical adhesive tape, which has a base layer made of cotton and an adhesive layer coated on the inner surface of the base layer.

See what other people are reading

How do musical instrument practice technologies impact the learning process and skill development of musicians?
5 answers
Musical instrument practice technologies play a crucial role in enhancing the learning process and skill development of musicians. These technologies offer real-time feedback, data collection, and statistical analysis to monitor technical skills. Additionally, the use of intelligent technologies positively impacts students' performance, with improvements noted in various music classes. Incorporating interactive technologies in music education can provide guidance during self-study and help teachers focus on intricate details. Moreover, involving teachers in the design of technology facilitates acceptance and adoption, aligning technological functionality with user needs to promote musical growth and skill acquisition. By envisioning musical instruments as smart objects and designing augmented instruments for learning purposes, solo practice sessions can be enhanced, providing valuable feedback to prevent incorrect motions and health issues.
What are the differences between chronic and episodic loneliness and isolation?
5 answers
Chronic loneliness and isolation refer to long-term experiences, while episodic loneliness and isolation are more short-lived. Chronic loneliness is more prevalent than chronic isolation, with a cumulative prevalence over five years of 13% for chronic loneliness compared to 4% for chronic isolation. Chronic social isolation has been linked to reduced sleep and increased feeding in Drosophila, inducing a starvation-like brain state. In Europe, 8.6% of adults suffer from frequent loneliness, while 20.8% experience social isolation, with eastern Europe showing the highest prevalence of both phenomena. Social isolation, an objective state of having a small social network, is often considered a risk factor for loneliness, which is a subjective feeling of lacking desired relationships.
How does the activity of lignocellulose decomposing fungi affect the nutrient availability and soil fertility in agricultural systems?
5 answers
The activity of lignocellulose decomposing fungi significantly impacts nutrient availability and soil fertility in agricultural systems. These fungi play a crucial role in decomposing complex lignocellulosic materials like crop residues, enhancing nutrient recycling back into the soil. Fungi, such as Trichoderma and Aspergillus species, have been identified as efficient lignocellulose decomposers, producing enzymes like CMCase and filter paperase that aid in decomposition. Additionally, the presence of active fungi accelerates straw turnover, increasing soil organic carbon and total nitrogen content, thereby promoting soil fertility and health in agricultural ecosystems. The application of compost, which influences fungal community composition, enhances the decomposition capacity of fungi for cellulose-rich substrates, further impacting soil fertility dynamics in agroecosystems.
Is different data obtained when using focus groups versus individual interviews in a qualitative study?
5 answers
In qualitative studies, data obtained from focus groups and individual interviews can vary based on the research context and methodology. While both methods aim to collect personal narratives and insights, variations exist in the type of information gathered. Focus groups may encourage more open discussions and the sharing of dissenting opinions, as seen in the study on medical risk during pregnancy. On the other hand, individual interviews may provide a more intimate setting for participants to share sensitive information comfortably, as highlighted in the research on food-allergy and sodium reduction in food products. The choice between focus groups and individual interviews should consider the research objectives, participant comfort, and the nature of the data being sought.
What are recent papers on how machine learning is used to understand antibody functions?
5 answers
Recent papers have highlighted the growing role of machine learning in understanding antibody functions. One study introduced scifAI, a framework for predictive machine learning on imaging flow cytometry data, enabling the analysis of morphological changes in the immunological synapse and predicting T cell cytokine production in response to immune stimulation. Another review discussed the shift towards deep learning in computational antibody design, emphasizing its potential in predicting antibody-antigen interactions and generating novel sequences. Additionally, a paper focused on using deep learning to predict antibody properties, showcasing the value of self-supervised pretraining for improved performance in antibody-based drug discovery. Furthermore, a study utilized machine learning models to identify single-chain antibody molecules binding to specific antigens, achieving high accuracy and precision, showcasing the potential for significant time and resource savings in drug discovery processes.
What are the WVTR of lignin food packaging films?
5 answers
The water vapor transmission rates (WVTR) of lignin-based food packaging films vary depending on the specific composition and processing methods. In one study, the addition of kraft lignin to starch coatings reduced water solubility, enhancing water stability. Another research focused on wood auto-hydrolysate (WAH) and chitosan composite films, showing that the OTR and WVP values decreased with the addition of chitosan, resulting in low OTR values of 0.16 cm³·μm·m-2·24 h-1·kPa-1. Additionally, lignin nanoparticles (LNPs) incorporated into starch films improved barrier properties, including water vapor transmission, and delayed oxidative deterioration of soybean oil. These findings collectively suggest that lignin-containing food packaging films can exhibit low WVTR values, making them suitable for various packaging applications.
How do ChatGPT4 influence society?
5 answers
ChatGPT4, a powerful AI chatbot, impacts society in various ways. It leverages Large Language Models (LLMs) to enhance industrial automation, customer satisfaction, and business processes across sectors like Banking & Financial Services, Healthcare, and Customer Relationship Management. The implementation of LLMs like ChatGPT raises concerns regarding security, biases, creativity, and freedom of speech, emphasizing the need for a balanced assessment of their benefits and downsides. ChatGPT aligns with the trend of cyber-physical-social systems (CPSS), utilizing data-driven analysis methods to understand complex systems and improve decision-making processes. Furthermore, ChatGPT embodies the fusion of technology and society, contributing to the concept of "social technology" and "technological society" within the DIKWP-ChatGPT class, highlighting the integration of technology and society in a purpose-driven model.
What do universal adhesives contain?
4 answers
Universal adhesives typically contain various components tailored for specific applications. These components may include photo-polymerization polymers with multiple catechol groups and surface-modified inorganic particles, maleic anhydride-grafted ethylene-based polymers, ethylene/α-olefin/non-conjugated diene interpolymers, very low-density polyethylene, and ethylene alkyl (meth)acrylate copolymers. Additionally, universal adhesives for dental materials may consist of alkoxysilane monomers, phosphoric acid ester monomers, sulphur-containing monomers, and organic solvents. These components contribute to the adhesive's properties such as light conversion rate, bond strength, and chemical composition, ensuring effective bonding to various substrates like zirconia and dental materials over long periods of time. Industrial universal adhesives may also include polyvinyl alcohol, formaldehyde, hydrochloric acid, sodium hydroxide, vinyl acetate, OP-10, dibutyl phthalate, and potassiumpersulfate.
Impact of Funding and Financial Viability in project delivery?
5 answers
Funding and financial viability play crucial roles in project delivery, influencing outcomes across various sectors. Governments are utilizing fiscal support for public infrastructure to stimulate economic recovery post-COVID-19, emphasizing the importance of quality infrastructure investment for long-term benefits. In the context of agricultural processing, understanding the true costs involved is essential for enhancing farmers' incomes and project sustainability. Additionally, in the oil and gas industry, adherence to proper economic evaluations and financial considerations is emphasized for commerciality assessment and reserves booking, highlighting the significance of accurate financial assumptions. Furthermore, in project management, factors like employee readiness, situational leadership, and trust in leaders impact financial sustainability amidst project complexities, underscoring the interconnectedness of financial factors with project success.
What is the current prevalence of sickle cell anemia among children in Saudi Arabia?
5 answers
The prevalence of sickle cell disease (SCD) in Saudi Arabia is significant, affecting both children and adults. In a study focusing on pediatric patients with SCD, it was found that 68% had normal systolic blood pressure, while 13% had elevated systolic BP, and 17% had stage 1 hypertension. Additionally, another study highlighted that sickle-cell mutation affects 4.45% of the Saudi population, with a mortality rate of 0.73% among adults with SCD. These findings underscore the importance of understanding and addressing the burden of SCD in Saudi Arabia, emphasizing the need for specialized care and interventions to improve outcomes for children and adults affected by this genetic disorder.
Are there more negatively valenced rituals than positive ones?
5 answers
Research indicates that there is a tendency for individuals to engage with negatively valenced stimuli, including rituals. While positive emotions can promote ritualistic consumption tendencies, negative emotions also play a significant role in boosting detailed elaboration of negative events, potentially leading to more negatively valenced rituals. However, it is essential to note that the preference for negative rituals may vary across age groups, with children showing a higher tendency to choose negative images compared to adults and adolescents. Therefore, although negative emotions can drive engagement with rituals, the prevalence of negatively valenced rituals compared to positive ones may depend on factors such as age and individual preferences.