title: Sonochemical synthesis, characterization, antimicrobial activity and textile dyeing behavior of nano-sized cobalt(III) complexes.
abstract: Using ultrasonic irradiations, nano-sized cobalt(III) coordination complexes, [Co(NH3)6]Cl3·2H2O (A), [Co(en)3]Cl3·3H2O (B) (en-ethylenediamine) and [Co(dien)2]Cl3·3.5H2O (C) (dien-diethylenetriamine) were synthesized. These complexes were characterized by spectroscopic studies like IR, UV/Visible and NMR. Morphology of these complexes was determined by SEM and particle size with the help of TEM & Zeta-sizer. The comparative thermal stability along with phase difference between nano structures and their respective bulk complexes has been studied by thermal gravimetric analysis (TGA) and X-ray powder diffraction (XRD) study respectively. The dyeing behavior of nano-sized Co(III) complexes and their respective bulks has also been studied (using both exhaust and pad dyeing methods) on cotton and wool fabrics and results shown rationalized dyeing behavior. All these complexes were further tested for antimicrobial activity (against B. subtilis, E. coli, K. pneumoniae, F. oxysporum and A. alternate) and it was observed that nano sized complexes enhanced the activity further.
authors.affiliation: Department of Chemistry, UGC Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar 143005, Punjab, India. Electronic address: rituhatta@yahoo.com.
authors.forename: Ritu
authors.initials: R
authors.lastname: Bala
authors.affiliation: Department of Chemistry, UGC Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
authors.forename: Jagriti
authors.initials: J
authors.lastname: Behal
authors.affiliation: Department of Chemistry, UGC Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
authors.forename: Varinder
authors.initials: V
authors.lastname: Kaur
authors.affiliation: Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
authors.forename: Subheet Kumar
authors.initials: SK
authors.lastname: Jain
authors.affiliation: Department of Microbiology, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
authors.forename: Riveka
authors.initials: R
authors.lastname: Rani
authors.affiliation: Department of Microbiology, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
authors.forename: Rajesh Kumari
authors.initials: RK
authors.lastname: Manhas
authors.affiliation: Department of Chemistry, Maharishi Markandeshwar University, Mullana, Ambala 133207, Haryana, India.
authors.forename: Vinit
authors.initials: V
authors.lastname: Prakash
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D060326:Chemistry Techniques, Synthetic; D003035:Cobalt / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013784:Textiles; D000069453:Ultrasonic Waves
chemical_list: D000890:Anti-Infective Agents; D004396:Coloring Agents; D009942:Organometallic Compounds; D003035:Cobalt
keywords: Antimicrobial activity; Cotton; Fastness properties; Nano-structure of cobalt(III) complexes; Sonochemical synthesis; Wool; X-ray powder diffraction