title: Synthesis, characterization and antibacterial activity of polyaniline/Pt-Pd nanocomposite.
abstract: Pt colloid and Pt-Pd colloid, pristine polyaniline, polyaniline/Pt nanocomposite and polyaniline/Pt-Pd nanocomposite were synthesized by simple chemical method. They were characterized by UV-Vis, FT-IR, XRD, TGA, SEM, HR-SEM and HR-TEM with EDAX techniques. The results proved that there is a strong interaction between metal nanoparticles (Pt-Pd) and polyaniline chains. This interaction creates changes in the backbone chain of polyaniline/Pt-Pd nanocomposite when compared to pristine polyaniline. The synthesized materials were evaluated for antibacterial activity, minimal inhibitory concentration and minimal bactericidal concentration. The results indicated that the nanocomposites exhibited improved antibacterial activity when compared to pristine polyaniline and individual metal colloids. This is the first report on the chemical synthesis of polyaniline/Pt-Pd nanocomposite, which exhibits antibacterial activity at micro molar concentration levels.
authors: Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamilnadu, India.
authors: Pandi
authors: P
authors: Boomi
authors: Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamilnadu, India. Electronic address: hgprabu2010@gmail.com.
authors: Halliah Gurumallesh
authors: HG
authors: Prabu
authors: Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630 006, Tamilnadu, India.
authors: Jayaraman
authors: J
authors: Mathiyarasu
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D008826:Microbial Sensitivity Tests; D053761:Nanocomposites / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D010165:Palladium / Q000737:chemistry*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013291:Streptococcus / Q000187:drug effects*; D013329:Structure-Activity Relationship; D013499:Surface Properties; D013696:Temperature
chemical_list: D000814:Aniline Compounds; D000900:Anti-Bacterial Agents; D009942:Organometallic Compounds; C416807:polyaniline; D010984:Platinum; D010165:Palladium
keywords: Antibacterial activity; Characterization; Polyaniline; Pt–Pd nanocomposite; Synthesis