Immobilization Method for Silver Nanoparticles Synthesized via Evaporation/Condensation onto a Glass Plate

Sakono, Naomi; Shimizu, Maa; Sakono, Masafumi

doi:10.1246/cl.220363

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…The furnaces were labeled furnace 1 (ARF-30K, Asahi Rika Factory; maximum temperature: 1200 °C) and furnace 2 (KRB-21HH, Isuzu Manufacturing Co., Ltd.; maximum temperature: 1500 °C) from the upstream side. To collect the gas-born nanoparticles, a T-shaped vacuum piping device called a collecting chamber was placed downstream of furnace 2 (details of the collecting chamber are described in our previous work 36 ). Ag and Au metal grains (1 g) were placed in furnaces 1 and 2, respectively.…”

Section: Nanoparticle Production By Decmentioning

confidence: 99%

Molar-Fraction-Tunable Synthesis of Ag–Au Alloy Nanoparticles via a Dual Evaporation–Condensation Method as Supported Catalysts for CO Oxidation

Sakono

Ishida

Ogo

et al. 2023

ACS Appl. Nano Mater.

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The properties of nanoparticles composed of two metallic elements are affected by their synergy as well as the composition and structure of nanocrystals. Therefore, precise adjustment of the molar fractions of the constituent elements and crystal structure is required for their successful synthesis. An evaporation−condensation method, which represents an aerosol nanoparticle synthesis method, is based on the reagglomeration of metallic elements in the gas phase. In this study, we utilized a dual evaporation−condensation method with two furnaces to adjust the molar fractions of Ag−Au nanoparticles with an alloy-type nanocrystalline structure and obtain spherical particles with sizes smaller than 10 nm. The molar fraction of Ag atoms in the synthesized particles varied between 0 and 80% depending on the heating temperature. Energy-dispersive X-ray spectroscopy data revealed that Ag and Au elements were present in all particles and formed an alloy structure, suggesting that alloyed composite particles with different stoichiometries can be easily fabricated via the dual evaporation−condensation method. In addition, the nanoparticles generated in the gas phase were successfully recovered by immobilization on a substrate and served as effective bimetallic catalysts for CO oxidation. It is noteworthy that the preparation of nanoparticles and their fixation to a substrate in the proposed method were performed in one step.

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Section: Nanoparticle Production By Decmentioning

confidence: 99%

Molar-Fraction-Tunable Synthesis of Ag–Au Alloy Nanoparticles via a Dual Evaporation–Condensation Method as Supported Catalysts for CO Oxidation

Sakono

Ishida

Ogo

et al. 2023

ACS Appl. Nano Mater.

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“…Overall, AgNPs have shown great potential in various applications (Figure 1), and continued research in this area is needed to fully understand their mechanisms of action and optimize their use in different fields. Various physical and chemical methods, such as the evaporation-condensation method [26], solvothermal synthesis [27], chemical reduction method [28], irradiation Various physical and chemical methods, such as the evaporation-condensation method [26], solvothermal synthesis [27], chemical reduction method [28], irradiation methods including gamma irradiation [29], ultrasound method [30], UV-irradiation [31], and microwave methods [32], lithography [33], electrochemical method [34], Tollen's method [35], polyaniline [36], thermal decomposition [37], and laser ablation methods [38], have been reported for the synthesis of AgNPs. While these approaches are highly productive, they involve tedious and time-consuming processes and are not eco-friendly [39,40].…”

Section: Introductionmentioning

confidence: 99%

“…Various physical and chemical methods, such as the evaporation–condensation method [ 26 ], solvothermal synthesis [ 27 ], chemical reduction method [ 28 ], irradiation methods including gamma irradiation [ 29 ], ultrasound method [ 30 ], UV-irradiation [ 31 ], and microwave methods [ 32 ], lithography [ 33 ], electrochemical method [ 34 ], Tollen’s method [ 35 ], polyaniline [ 36 ], thermal decomposition [ 37 ], and laser ablation methods [ 38 ], have been reported for the synthesis of AgNPs. While these approaches are highly productive, they involve tedious and time-consuming processes and are not eco-friendly [ 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

Rosmarinic Acid-Rich Perilla frutescens Extract-Derived Silver Nanoparticles: A Green Synthesis Approach for Multifunctional Biomedical Applications including Antibacterial, Antioxidant, and Anticancer Activities

Netala,

Hou,

Sana

et al. 2024

Molecules

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This study describes a simple, cost-effective, and eco-friendly method for synthesizing silver nanoparticles using a rosmarinic acid extract from Perilla frutescens (PFRAE) as the bioreduction agent. The resulting nanoparticles, called PFRAE-AgNPs, were characterized using various analytical techniques. The UV–Vis spectrum confirmed the formation of PFRAE-AgNPs, and the FTIR spectrum indicated the participation of rosmarinic acid in their synthesis and stabilization. The XRD pattern revealed the crystal structure of PFRAE-AgNPs, and the TEM analysis showed their spherical morphology with sizes ranging between 20 and 80 nm. The DLS analysis indicated that PFRAE-AgNPs were monodispersed with an average diameter of 44.0 ± 3.2 nm, and the high negative zeta potential (−19.65 mV) indicated their high stability. In the antibacterial assays, the PFRAE-AgNPs showed potent activity against both Gram-positive (Bacillus subtilis and Staphylococcus aureus) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial pathogens, suggesting that they could be used as a potential antibacterial agent in the clinical setting. Moreover, the antioxidant activity of PFRAE-AgNPs against DPPH and ABTS radical scavengers highlights their potential in the treatment of various oxidative stress-related diseases. PFRAE-AgNPs also demonstrated significant anticancer activity against a range of cell lines including human colon cancer (COLO205), human prostate carcinoma (PC-3), human lung adenocarcinoma (A549), and human ovarian cancer (SKOV3) cell lines suggesting their potential in cancer therapy. The nanoparticles may also have potential in drug delivery, as their small size and high stability could enable them to cross biological barriers and deliver drugs to specific target sites. In addition to the aforementioned properties, PFRAE-AgNPs were found to be biocompatible towards normal (CHO) cells, which is a crucial characteristic for their application in cancer therapy and drug delivery systems. Their antibacterial, antioxidant, and anticancer properties make them promising candidates for the development of new therapeutic agents. Furthermore, their small size, high stability, and biocompatibility could enable them to be used in drug delivery systems to enhance drug efficacy and reduce side effects.

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Synthesis of silver nanoparticles as an antimicrobial mediator

Khaldoun,

Khizar,

Saidi-Besbes

et al. 2024

J.Umm Al-Qura Univ. Appll. Sci.

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Silver nanoparticles (AgNPs) become a topic of great research on account of their exemplary properties (optical, electrical, and antimicrobial properties). They have been executed as an exceptional antimicrobial agent having ability to combat microorganism’s in vivo and in vitro causing infections. The antibacterial activity of AgNPs covers Gram-positive and Gram-negative bacteria, as well as multidrug resistant (MDR) strains. AgNPs display manifold and immediate mechanisms of activity and in incorporation with antimicrobial agents as antibiotics or organic compounds, it exhibit synergistic impact against pathogens bacteria. The properties of AgNPs make them appropriate for their usage in healthcare and medical products where they might treat infections or inhibit them competently. A range of approaches to synthesize AgNPs are stated in literature; including physical, biological, and chemical techniques, with a growing need to establish eco-friendly processes. With the imperative need for novel and effective antimicrobial agents, this review intends to establish aspects affecting antimicrobial impacts of AgNPs, as well as to descript the benefits of employing AgNPs as new antimicrobial in different life science applications. This review summarizes synthesis of AgNPs and remarkable implementation of AgNPs dealing with their antimicrobic properties in the field of textile, food industry, agriculture, water treatment, and most importantly in health care sector. Additionally fundamental mechanism by which they implement their antimicrobic activity will also be addressed. Graphical abstract

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Immobilization Method for Silver Nanoparticles Synthesized via Evaporation/Condensation onto a Glass Plate

Cited by 5 publications

References 19 publications

Molar-Fraction-Tunable Synthesis of Ag–Au Alloy Nanoparticles via a Dual Evaporation–Condensation Method as Supported Catalysts for CO Oxidation

Molar-Fraction-Tunable Synthesis of Ag–Au Alloy Nanoparticles via a Dual Evaporation–Condensation Method as Supported Catalysts for CO Oxidation

Rosmarinic Acid-Rich Perilla frutescens Extract-Derived Silver Nanoparticles: A Green Synthesis Approach for Multifunctional Biomedical Applications including Antibacterial, Antioxidant, and Anticancer Activities

Synthesis of silver nanoparticles as an antimicrobial mediator

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