Moisture Uptake Behavior, Antibacterial Property, and Heat of Sorption of Nano Silver-Loaded Calcium Alginate Films

被引：15

作者：

Chaurasia, Varsha ^{[1
]}

Bajpai, S. K. ^{[1
]}

机构：

[1] Govt Model Sci Coll, Polymer Res Lab, Dept Chem, Jabalpur, MP, India

来源：

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS | 2013年 / 62卷 / 03期

关键词：

Alginate; E; coli; GAB isotherm; halsey model; oswin model; silver nanoparticles; WATER-VAPOR PERMEABILITY; BIODEGRADABLE POLYMER; MECHANICAL-PROPERTIES; NANOPARTICLES; ISOTHERMS; PLASTICIZER; BARRIER; RELEASE;

D O I：

10.1080/00914037.2011.610062

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

082905 [生物质能源与材料]; 100103 [病原生物学];

摘要：

This work describes preparation, characterization, and a moisture uptake study of silver nanoparticle-loaded calcium alginate films. The equilibrium uptake data was interpreted by various isotherm models. In the lower moisture content range of 0.02 to 0.06, the enthalpy of sorption (H) and differential entropy (S) were 25.25 to 4.82kJ/mol and 0.07521 to 0.01371kJ/mol/K, respectively. There was fair correlation between H and S values. Finally, the higher value of isokinetic temperature, TB (i.e., 336.77), as compared to the harmonic mean temperature, Tm (i.e., 302.05), indicated that moisture uptake mechanism was enthalpy driven.

引用

页码：119 / 127

页数：9

共 43 条

[1]

Water sorption isotherms of date pastes as influenced by date cultivar and storage temperature [J].

Alhamdan, AM ;

Hassan, BH .

JOURNAL OF FOOD ENGINEERING, 1999, 39 (03) :301-306

[2]

MODIFICATIONS OF THE BRUNAUER, EMMETT AND TELLER EQUATION [J].

ANDERSON, RB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1946, 68 (04) :686-691

[3]

[Anonymous], AGR ENG INT

[4]

ASTM, 1993, 9693 ASTM, V96-93, P701

[5]

Studly of biomineralization of poly(vinyl alcohol)-based scaffolds using an alternate soaking approach [J].

Bajpai, A. K. ;

Singh, Raghvendra .

POLYMER INTERNATIONAL, 2007, 56 (04) :557-568

[6]

Investigation of Water Vapor Permeability and Antimicrobial Property of Zinc Oxide Nanoparticles-Loaded Chitosan-Based Edible Film [J].

Bajpai, S. K. ;

Chand, Navin ;

Chaurasia, Varsha .

JOURNAL OF APPLIED POLYMER SCIENCE, 2010, 115 (02) :674-683

[7]

Preparation and Characterization of Polypyrrole Silver Nanocomposites via Interfacial Polymerization [J].

Bedre, Mahesh D. ;

Basavaraja, S. ;

Deshpande, Raghunandan ;

Balaji, D. S. ;

Venkataraman, A. .

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS, 2010, 59 (08) :531-543

[8]

Bozdemir ÖA, 2003, TURK J CHEM, V27, P773

[9]

Molecular basis of Ca2+-induced gelation in alginates and pectins:: The egg-box model revisited [J].

Braccini, I ;

Pérez, S .

BIOMACROMOLECULES, 2001, 2 (04) :1089-1096

[10]

Fabrication and characterisation of chitosan nanoparticles/plasticised-starch composites [J].

Chang, Peter R. ;

Jian, Ruijuan ;

Yu, Jiugao ;

Ma, Xiaofei .

FOOD CHEMISTRY, 2010, 120 (03) :736-740

← 1 2 3 4 5 →