Antimicrobial Property of Nanosilver Colloid Prepared by Electrical Spark Discharge Method on Aspergillus niger

Tseng, Kuo-Hsiung; Chung, Meng-Yun; Chiu, Juei-Long

doi:10.1007/s10876-017-1325-7

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…It has the characteristics of simple process and fast and green preparation. Comparing the nano-Ag colloids derived from Nh 3 -Ag with the nano-Ag colloids derived from Ag, the Nh 3 -Ag particles have good stability, and the concentration and zeta potential are both improved [5]. Haque et al used sodium borohydride to chemically reduce silver nitrate in water and organic solvents to obtain colloidal silver nanoparticles.…”

Section: Related Workmentioning

confidence: 99%

Application of Polymer Nanocolloid Preparation in Stability Analysis of Motion Mechanics

Jia

Sun

2022

Advances in Materials Science and Engineering

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Nanomaterials are widely used in various fields because of their own advantages. When the particle size of the material is reduced to the nanometer level, it will lead to new characteristics of acoustic, optical, electrical, magnetic, and thermal properties. This will greatly enrich the research content of the material and is expected to get new uses. Therefore, the preparation technology of nanomaterials is one of the current research hotspots and has broad application prospects. At present, the most commonly used preparation techniques are hydrothermal method and sol-gel method, but not all crystals grow in a hydrothermal environment, so this paper adopts the sol-gel method for preparation. However, in the preparation of nanocolloids, agglomeration often occurs between colloidal nanoparticles. In order to avoid the agglomeration between particles, this paper adopts an appropriate method to disperse the particles. In order to further explore the stability of nanocolloids, the colloidal film material prepared by the cadmium sulfide (CdS) sol method was used as the research sample. It also proposes a sol preparation method incorporating ultrasonic waves and further discusses the kinetic characteristics. The research results show that the sedimentation velocity of 1 nm cadmium sulfide nanocolloids in water is 1.3 × 10−12 (m/s) prepared by colloid of cadmium sulfide.

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Section: Related Workmentioning

confidence: 99%

Application of Polymer Nanocolloid Preparation in Stability Analysis of Motion Mechanics

Jia

Sun

2022

Advances in Materials Science and Engineering

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“…1. Scheme of a gas-discharge reactor: a body of a discharge chamber made of plexiglass (1), an output quartz window (2), a fitting connected to a vacuum-gasmixing system (3), high-voltage inputs (4), an electrode from the studied material -Ag2S (5), stainless steel electrode (6), glass substrate for deposition of thin films of silver nitride (7), discharge area (8).…”

Section: Methods and Experimental Techniquementioning

confidence: 99%

“…In [6,7], the results of the study and application of silver nanoparticles, which were obtained by the erosion of silver electrodes as a result of the ignition of highcurrent short-duration discharges in water, are presented.…”

Section: Introductionmentioning

confidence: 99%

Investigation of conditions of synthesis of thin films of silver nitride (AgNO3) in a high-frequency low-pressure discharge

Шуаібов

Minya

Hrytsak

et al. 2022

Phys. Chem. Solid St.

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The results of studying the characteristics of a low-pressure high-frequency discharge in air (p = 10 Pa) for the synthesis of thin films from silver nitride, due to the ecton sputtering mechanism of a polycrystalline electrode from the compound Ag2S, are presented. For the synthesis of thin films based on the AgNO3 compound, the phenomenon of explosive emission of natural inhomogeneities on the surface of a polycrystalline electrode was used, in which, as a result of the destruction of electrodes from the Ag2S superionic conductor, a silver vapor flow was formed, which, after interaction with a low-density air plasma, condensed in the form of silver nitride on placed near a dielectric substrate. The resulting films can be used in medicine, biotechnology, biomedical engineering, and agriculture.

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“…Any conductible materials can be used for ESDM [14]. Through the discharge arc between the work piece and electrode immersed in the dielectric fluid, the surface of metal was eroded and melted into nanoparticles at high temperature [15]. In this Letter, only traditional electric discharge machine and magnet mixer were used.…”

mentioning

confidence: 99%

Stability analysis of platinum nanoparticles prepared by ESDM in deionised water

Tseng

Lin

Tien

et al. 2018

Micro & Nano Letters

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Electrical discharge machine was used to prepare platinum nanocolloid by electric spark discharge method (ESDM) at room temperature. Preparation of platinum nanocolloid needed only traditional electrical discharge machine, platinum wire (99.5%) and magnet mixer. Then verify whether platinum nanoparticles be could successfully prepared under different preparation and their suspension stability. The optical properties and zeta potential were measured by UV-vis and Zetasizer, and their characteristic peaks (surface plasmon resonant), while suspension stability was analysed. The results of transmission electron microscope showed size, shape and dispersibility of platinum nanoparticles with a size of mostly <10 nm. X-ray diffraction was used to measure crystal lattice structure and component of platinum nanoparticles. In this work, platinum nanocolloid in conditions of normal and centrifuge were analysed. Zeta potential of normal colloid was decreased from −29.5 to −18.8 mV after precipitation, while zeta potential of the centrifuged colloid still maintained at −40 mV, confirming the good suspension stability of platinum nanocolloid prepared by ESDM after centrifugation.

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Antimicrobial Property of Nanosilver Colloid Prepared by Electrical Spark Discharge Method on Aspergillus niger

Cited by 6 publications

References 21 publications

Application of Polymer Nanocolloid Preparation in Stability Analysis of Motion Mechanics

Application of Polymer Nanocolloid Preparation in Stability Analysis of Motion Mechanics

Investigation of conditions of synthesis of thin films of silver nitride (AgNO3) in a high-frequency low-pressure discharge

Stability analysis of platinum nanoparticles prepared by ESDM in deionised water

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