TAILIEUCHUNG - Fabrication of silver-nanoparticles-embedded polymer masterbatchs with excellent antibacterial performance

In the present work, a versatile and effective synthesis method of the silver-nanoparticlesembedded polyethylene (PE)-based polymer masterbatchs was demonstrated. Antibacterial investigations revealed that the nano-silver masterbatchs consisting of oleate capped silver nanoparticles dispersed in PE polymer matrix exhibited excellent antibacterial performance against Gram-negative Escherichia Coli () and Staphylococcus aureus (S. aureus) bacteria. | Journal of Chemistry, Vol. 47 (5), P. 574 - 580, 2009 Fabrication of silver-nanoparticles-embedded polymer masterbatchs with excellent antibacterial performance Received 10 November 2008 1 Trinh Thi Hang , Phuong Dinh Tam1, Tran Quang Huy1, Le Anh Tuan1,* 1 Department of Nanoscience and Nanotechnology, Hanoi Advanced School of Science and Technology (HAST), Hanoi University of Technology 2 National Institute of Hygiene and Epidemiology (NIHE), Hanoi, Vietnam Abstract In the present work, a versatile and effective synthesis method of the silver-nanoparticlesembedded polyethylene (PE)-based polymer masterbatchs was demonstrated. Antibacterial investigations revealed that the nano-silver masterbatchs consisting of oleate capped silver nanoparticles dispersed in PE polymer matrix exhibited excellent antibacterial performance against Gram-negative Escherichia Coli () and Staphylococcus aureus (S. aureus) bacteria. A complete inhibition in bacteria growth was found at a silver nanoparticles concentration as low as 600 ppm. The origin of bactericidal effect and interaction mechanism of the stabilized silver nanoparticles with the Gram-negative E. coli and Gram-positive S. aureus bacteria can be understood in the light of electron microscopic observation. These advances make the synthesized nano-silver masterbatchs ideal for mass production of effectively antibacterial green products in medical, biological and industrial sectors. The type of polymer resin and silver concentration can be adjusted depending on the application area. Keywords: Silver nanoparticles; nanosilver masterbatch; anti-microbial effect, green synthesis, thermal decomposition. I - Introduction During the last decade, due to the emergence of a new generation of high technology materials, the number of groups involved in nanomaterials has increased rapidly. Nanomaterials are implicated in several domains such as chemistry, electronics, high density magnetic recording media, sensors .

• Hoá học
• Journal of Chemistry
• Fabrication of silver nanoparticles embedded polymer masterbatchs
• Excellent antibacterial performance
• Silver nanoparticles embedded polymer masterbatchs
• The silver nanoparticlesembedded polyethylene
• Gram negative Escherichia Coli
• Journal of technology and science education
• Innovative chemistry learning model
• Improving the critical thinking skill
• Self efficacy of pre service chemistry teachers
• Pre service chemistry teachers
• SCT learning model syntax covers
• The Chemistry and Antimicrobial Activity of Psychotria reevesii Wall
• The Chemistry and Antimicrobial Activity
• Psychotria reevesii Wall
• The polar fractions against Staphylococcus aureus
• The relationship between teacher related factors
• Students attitudes towards secondary school chemistry subject
• Bureti district Kenya
• Secondary school chemistry subject
• Click chemistry
• Poly(ethylene glycol)
• Poly(epsilon caprolactone)
• Azide functionalized molecules
• Azide montmorillonite clay
• Block copolymer
• Ketene chemistry
• Telechelic polymers
• Controlled radical polymerization (CRP)
• C60 fullerene
• Metallosupramolecular chemistry
• Host–guest complexes
• Supramolecular chemistry
• Donor–acceptor (D–A)
• Ring opening polymerization
• Thiol benzoxazine reaction
• Catechol based benzoxazine copolymer
• Antibacterial coatings
• Benzoxazine chemistry
• Green chemistry
• Heavy metals
• Cetylpyridinium chloride
• Analytical chemistry
• Journal of Science and Technology
• Green organic synthesis of N methylpyrrolidine
• Gas Chromatography Mass spectroscopy
• The green chemistry process
• Via the green chemistry process
• Journal of medical research
• Production of liophilized quality control samples
• Liophilized quality control samples
• Several clinical chemistry test
• Statistical quality control
• Perspectives on blended learning
• The on line platform
• LabLessons for Chemistry
• Hydrogen and Titration
• College mentors alongside
• Contextualizing technology in the classroom via remote access
• Using space exploration themes
• Scanning electron microscopy
• Tools to promote engagement
• Multidisciplinary geology chemistry experiments
• The service of learning chemistry in Industrial Engineering
• Degrees in Industrial Engineering
• Chemical Engineering and Materials Engineering
• The feed back
• Assessment of achievement in problem solving skills
• General Chemistry course
• Problem based learning
• Measure problem solving skills
• Use of chemistry software to teach
• Assess model based reaction and equation knowledge
• Assess model based reaction
• Two advanced placement
• Public suburban high school
• Collaborative activities for solving multi step problems
• Solving multi step problems in general chemistry
• Solving multi step problems
• The relatve partcipaton of instructor students
• Antioxidant activity
• Bioinorganic chemistry
• Cytotoxic activity
• DNA binding and cleavage activity
• Topoisomerase inhibitor
• Transition metal compounds
• Analytical methods
• Electroanalytical chemistry
• Ionic liquids
• Penicillin allergic patients
• Capillary electrophoresis
• Carbamate SCC interactions
• Fluorescence quenching
• Quantum chemistry calculation
• Inhibition chemiluminescence
• Piperazine chemistry
• Structural features
• Anticancer activity
• Anticancer drugs
• D cyclin dependent kinase
• 3 Amino 9 ethylcarbazole
• Multicomponent reaction
• Arylation reactions
• Cyclization reactions
• Pyrrolo[2 3 c]carbazole
• Prido[3 2 b]carbazole
• Ionic liquid
• Organic phase change materials
• Thermal energy storage
• Solvent free medium
• Silicon chemistry
• Reaction mechanism
• Density functional theory (DFT)
• Homogeneous transitionmetal catalysis
• Silicon analogues
• Medicinal chemistry
• Antiproliferative agents
• Protect endangered tissue
• Anti inflammatory cytokines
• Persistent inflammatory reaction
• Formic acid decomposition
• Renewable feedstock
• Energy feedstocks
• High surface area materials