我的台灣, 看見心靈的故鄉 =2009林磐聳藝術與設計展

Despite numerous existing potent antibiotics and other antimicrobial means, bacterial infections are still a major cause of morbidity and mortality. Moreover, the need to develop additional bactericidal means has significantly increased due to the growing concern regarding multidrug-resistant bacterial strains and biofilm associated infections. Consequently, attention has been especially devoted to new and emerging nanoparticle-based materials in the field of antimicrobial chemotherapy. The present review discusses the activities of nanoparticles as an antimicrobial means, their mode of action, nanoparticle effect on drug-resistant bacteria, and the risks attendant on their use as antibacterial agents. Factors contributing to nanoparticle performance in the clinical setting, their unique properties, and mechanism of action as antibacterial agents are discussed in detail.

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Alternative Antimicrobial Approach: Nano-Antimicrobial Materials

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Green synthesized ZnO nanoparticles against bacterial and fungal pathogens

[발표] 2015개정 실과 교육과정 ‘가정생활’ 영역 개발 방향

Metal Ions in Biological Systems

Copper oxide nanoparticles were prepared by electrochemical reduction method using tetra butyl ammonium bromide (TBAB) as structure directing agent in an organic medium viz. tetra hydro furan (THF) and acetonitrile (ACN) in 4:1 ratio by optimizing current density and molar concentration of the ligand. The reduction process takes place under inert atmosphere of nitrogen over a period of 2 h. Such nanoparticles are prepared using simple electrolysis cell in which the sacrificial anode as a commercially available copper metal sheet and platinum (inert) sheet act as a cathode. The parameters such as current density, solvent polarity, distance between electrodes, and concentration of stabilizers are used to control the size of nanoparticles. The synthesized copper oxide nanoparticles were characterized by using UV–Visible, FT-IR, XRD, SEM–EDS and TEM analysis techniques. The nanoparticles were tested for antibacterial activity against human pathogens like Escherichia coli (E. coli) and Staphylococcus strains and which was proved to be excellent.

Copper Oxide Nanoparticles: Synthesis, Characterization and Their Antibacterial Activity

Synthesis of TiO2 nanoparticles by electrochemical method and their antibacterial application

4H-Benzo[b]pyrans was synthesized under reflux condition in ethanol via condensation of benzaldehyde, malononitrile and dimedone with ZnO-beta zeolite as an inexpensive and effective catalyst. The key features of the reported protocols are good to excellent yields, short reaction time and recovery and reusability of catalytic material.

A Recyclable and Highly Effective ZnO‐beta Zeolite as a Catalyst for One‐pot Three‐Component Synthesis of Tetrahydrobenzo[b]pyrans

Synthesis and characterization of new squaraine dyes with bis-pendent carboxylic groups for dye-sensitized solar cells

Molybdenum oxide nanoparticles were prepared by electrochemical reduction method using tetra ethyl ammonium bromide as structure directing agent in an organic medium tetrahydrofuran/acetonitrile in 4:1 ratio and at current density 14 mA/cm2. The synthesized molybdenum oxide nanoparticles were characterized by using ultra violet–visible spectroscopy, infra red spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy and transmission electron microscope analysis techniques. The nanoparticles were tested for antibacterial activity against human pathogens like gram negative Escherichia coli, Salmonella typhi and gram positive Staphylococcus aureus, Bacillus subtilis strains, which showed excellent antibacterial properties.

Suresh T. Gaikwad

Papers

Copper Oxide Nanoparticles: Synthesis, Characterization and Their Antibacterial Activity

Synthesis of TiO2 nanoparticles by electrochemical method and their antibacterial application

A Recyclable and Highly Effective ZnO‐beta Zeolite as a Catalyst for One‐pot Three‐Component Synthesis of Tetrahydrobenzo[b]pyrans

Synthesis and characterization of new squaraine dyes with bis-pendent carboxylic groups for dye-sensitized solar cells

Molybdenum Oxide Nanoparticles as Antimicrobial Agents