以壳聚糖(以下简称为 CTS)和 AgNO3为原材料,在酸性条件下,避光加热制得载银壳聚糖(以下简称为 CTS-Ag),运用 SEM、FT-IR、XRD、元素分析仪分析其形貌、结构、化学基团；采用常温常压浸渍法制得CTS-Ag抗菌薄木,运用菌落计数法定量表征其抗菌性能,并以 CIE L?a?b?(1976)表色系统评价CTS-Ag对薄木颜色的影响。结果表明,CTS 分子中—NH2与Ag+发生配位反应生成 CTS-Ag,配位比为2∶1；CTS 与 Ag+结合使得结晶度下降；CTS-Ag抗菌性能显著,优于单一组分的 CTS 与 Ag+抗菌剂；CTS-Ag明显提高了 Ag+耐光性,对处理材本身颜色的影响较小。
Chitosan (CTS)and AgNO3 solution were used to prepare antibacterial agent,i.e.silver-carried chi-tosan(CTS-Ag),by reacting under dark,heating and acid conditions,and their resulted morphology,struc-ture,and chemical groups were obtained by using SEM,FT-IR,XRD and elemental analyzer.The antibacterial property of CTS-Ag treated veneers with impregnating in normal temperature and pressure were specific evalua-ted by colony counting method.A CIE L?a?b? (1976)color system investigated the effect of CTS-Ag on ve-neer’s colors.The results showed that:coordination reaction took place between —NH2 and Ag+(ratio 2∶1), generating CTS-Ag.The crystallinity of CTS were decreased obviously,while the antibacterial properties of CTS-Ag were superior to CTS or Ag+.CTS-Ag could improve the light resistance of Ag+,it had no significant influence on the color for veneer.
参考文献
| [1] | Sheng Guangyu .Review of new inorganie antibacterial a-gents[J].Guizhou Chemical Industry,2003,28(04):5-7. |
| [2] | 唐艳军,刘晓峰,夏军,薛国新,王进.TiO_2/壳聚糖纳米复合涂料制备及其在抗菌纸中的应用[J].功能材料,2012(17):2416-2420. |
| [3] | M.N.V.Ravi.Kumar;R.A.A.Muzzarelli;C.Muzzarelli .Chitosan Chemistry and Pharmaceutical Perspectives[J].Chemical Reviews,2004(12):6017-6084. |
| [4] | Muzzarelli R;Baldassarre V;Conti F et al.Biological activity of chitosan:ultrastructuralstudy[J].Biomateri-als,1988,9(03):247-252. |
| [5] | Denuziere A;Ferrier D;Damour O;Domard A .Chitosan-chondroitin sulfate and chitosan-hyaluronate polyelectrolyte complexes: biological properties.[J].Biomaterials,1998(14):1275-1285. |
| [6] | 许勇,洪华,钱颖,刘昌胜.医用壳聚糖膜的制备和性能研究[J].功能高分子学报,2004(01):55-60. |
| [7] | 肖振宇,原续波,盛京.甲壳素、壳聚糖的改性[J].广州化学,2002(02):60-64. |
| [8] | Fu Min;Chen Mei;Jin Xinrong .Research on chitosan ad-sorption of Fe2+[J].Chemical World,1998,39(02):79-82. |
| [9] | Antimicrobial products-test for antimi-crobial activity and efficiency[S].Japan:Japanese Stand-ards Association,2010. |
| [10] | 袁彦超,章明秋,容敏智.交联壳聚糖树脂对Ni（Ⅱ）的吸附行为研究[J].化学学报,2005(18):1753-1758. |
| [11] | Rungby J;Ellermann E S .Effects of selenium on toxici-ty and ultrastructural localization of silver in cultured macrophags[J].Archives of Toxicology,1987,61(01):40-45. |
| [12] | Meng Na;Zhou Ning;Liu Ying et al.Synthesis and properties of CMC-Ag/MMT antimicrobial nanocompos-ities[J].Journal of Functional Materials,2007,38(06):958-960. |
| [13] | Choi B K;Kim K Y .In Vitro antimicrobial activity of a chitooligosaccharide mixture against actinobacillus acti-nomycetemcomitans and streptococcus mutans[J].In-ternational Journal of Antimicrobial Agents,2001,18(06):553-557. |
| [14] | Hu SG;Jou CH;Yang MC .Protein adsorption, fibroblast activity and antibacterial properties of poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) grafted with chitosan and chitooligosaccharide after immobilized with hyaluronic acid.[J].Biomaterials,2003(16):2685-2693. |
| [15] | Shi Z;Neoh KG;Kang ET;Wang W .Antibacterial and mechanical properties of bone cement impregnated with chitosan nanoparticles.[J].Biomaterials,2006(11):2440-2449. |
| [16] | 高敏杰,王志强,孙磊,王治华,赵彦保.壳聚糖修饰银纳米颗粒的制备及抗菌性能研究[J].功能材料,2012(08):1038-1041. |
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