Antimicrobial activity of poly(L-lactide acid)/silver nanocomposite fibers

被引:22
作者
Erem, A. Dural [1 ]
Ozcan, G. [1 ]
Erem, H. H. [2 ]
Skrifvars, M.
机构
[1] Istanbul Tech Univ, Dept Text Engn, Istanbul, Turkey
[2] Gumussuyu Mil Hosp, Istanbul, Turkey
关键词
Antimicrobial; nanocomposite; poly(lactide acid); silver nanoparticles; POLY(LACTIC ACID); ANTIBACTERIAL ACTIVITY; COMPOSITES; YARNS;
D O I
10.1177/0040517513481875
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
Silver (Ag) nanoparticles (NP) and poly(lactide acid) (PLA) granules were microcompounded to form a nanocomposite. A series of PLA nanocomposite fibers containing, respectively, 0, 0.5, 1, 3 or 5wt% Ag were produced and their antimicrobial activity against Gram-negative and Gram-positive bacteria evaluated. It was found that the PLA/Ag nanocomposite fibers exhibited increased antimicrobial activity, depending on the filler content. On the other hand, mechanical and thermal characterization tests, including thermogravimetric analysis, differential scanning calorimetry and tensile testing, showed that increasing concentrations of Ag hindered the mechanical properties of Nanocomposites due to partial agglomeration, leading to the generation of flaws. The crystallinity of the fibers was found to decrease by about 23% if the Ag content was increased to 5%. This could be attributed to a more rapid cooling rate resulting from the high thermal conductivity of the Ag particles.
引用
收藏
页码:2111 / 2117
页数:7
相关论文
共 17 条
[1]   Synthesis and properties of poly(lactic acid) [J].
Andreopoulos, AG ;
Hatzi, E ;
Doxastakis, M .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 1999, 10 (01) :29-33
[2]  
[Anonymous], 1998, D57098 ASTM
[3]  
[Anonymous], 2001, ASTM E2149-01
[4]  
ASTM International. ASTM D3822-07, 2007, D382207 ASTM, P1
[5]   Fiber to Fabric Processability of Silver/Zinc-loaded Nanocomposite Yarns [J].
Dastjerdi, Roya ;
Mojtahedi, Mohammad Reza Mohaddes ;
Shoshtari, Ahmad Mousavi ;
Khosroshahi, Ali ;
Moayed, Abdol Javad .
TEXTILE RESEARCH JOURNAL, 2009, 79 (12) :1099-1107
[6]  
DEITCH EA, 1987, J TRAUMA, V27, P301
[7]   Development and thermal behaviour of ternary PLA matrix composites [J].
Fortunati, E. ;
Armentano, I. ;
Iannoni, A. ;
Kenny, J. M. .
POLYMER DEGRADATION AND STABILITY, 2010, 95 (11) :2200-2206
[8]   Poly(lactic acid) fiber: An overview [J].
Gupta, Bhuvanesh ;
Revagade, Nilesh ;
Hilborn, Jons .
PROGRESS IN POLYMER SCIENCE, 2007, 32 (04) :455-482
[9]   Silver ion release from antimicrobial polyamide/silver composites [J].
Kumar, R ;
Münstedt, H .
BIOMATERIALS, 2005, 26 (14) :2081-2088
[10]   Effect of surfactants and polymers on stability and antibacterial activity of silver nanoparticles (NPs) [J].
Kvitek, Libor ;
Panacek, Ales ;
Soukupova, Jana ;
Kolar, Milan ;
Vecerova, Renata ;
Prucek, Robert ;
Holecova, Mirka ;
Zboril, Radek .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (15) :5825-5834