Antimicrobial cotton fibres prepared by in situ synthesis of AgCl into a silica matrix

Klemenčič, Danijela; Tomšič, Brigita; Kovač, Franci; Simončić, Barbara

doi:10.1007/s10570-012-9735-z

Cited by 37 publications

(24 citation statements)

References 72 publications

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“…Twill‐weave, 100% cotton woven fabric (119 g/m 2 , warp density = 50 threads/cm, and weft density = 31 threads/cm) was purchased from Slovenian Textile Co. In the pretreatment process, the fabric was bleached in an H 2 O 2 bath, immersed in an NaOH solution, then neutralized with diluted HCl, washed with double‐distilled water, and then dried at 60°C in vacuo …”

Section: Methodsmentioning

confidence: 99%

“…In the pretreatment process, the fabric was bleached in an H 2 O 2 bath, immersed in an NaOH solution, then neutralized with diluted HCl, washed with double-distilled water, and then dried at 608C in vacuo. 50 A hydrophilic polysaccharide, sodium alginate (SA; viscosity 5 0.02 Pa s in a 1% aqueous solution at 208C; Aladdin Chemistry Co., Ltd.), was used as a stabilizing agent, and a reactive organic/inorganic binder in combination with CaCO 3 was used to form hybrid particles. Anhydrous CaCl 2 (Sinopharm Chemical Reagent Co., Ltd., Shanghai, China) and anhydrous Na 2 CO 3 (Sinopharm Chemical Reagent Co., Ltd., Shanghai, China) were used as reactants.…”

Section: Methodsmentioning

confidence: 99%

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Drug‐loaded microparticles prepared by the one‐step deposition of calcium carbonate/alginate onto cotton fabrics

Hou

Branford-White

et al. 2015

J of Applied Polymer Sci

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Calcium carbonate (CaCO 3 )/alginate inorganic-organic hybrid particles were synthesized and deposited on to the surface of cotton fabrics with a novel one-step procedure. The effects of the Ca 21 /CO 3 22 /alginate molar ratio on the cotton matrix were investigated. The optimization of the process resulted in a regular shaped hybrid microparticles, and scanning electron microscopy revealed that the particles were uniformly distributed on the surface of the fibers. Dynamic light scattering showed that the particles were about 2 lm in diameter. Moreover, transmission electron microscopy images demonstrated that the core-shell structure of the particles existed along with CaCO 3 evenly enfolded into the alginate layer. An X-ray diffraction pattern displayed that the alginate/ CaCO 3 hybrid microparticles were a mixture of calcite and vaterite crystal. Fourier transform infrared spectroscopy indicated that CaCO 3 /alginate hybrid particles formed in situ were the only deposited materials. The thermogravimetric analysis curve indicated a certain mass ratio of the alginate and CaCO 3 in the hybrid particles. Furthermore, the drug-loading and drug-release properties of the hybrid microspheres were studied, and the results show that the water-soluble diclofenac sodium could be effectively loaded in the hybrid microparticles and the drug release could be effectively sustained. Finally, both of the microparticles and modified fabrics had good cytocompatibility.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Drug‐loaded microparticles prepared by the one‐step deposition of calcium carbonate/alginate onto cotton fabrics

Hou

Branford-White

et al. 2015

J of Applied Polymer Sci

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“…Pomembna funkcionalna lastnost vlaken PLA je njihova protimikrobna zaš ita. Le-to lahko dosežemo z razli nimi kemijskimi sredstvi, med katerimi je srebro, še zlasti v obliki nanodelcev, eden najpomembnejših biocidov [9][10][11][12][13][14][15][16][17][18][19][20]. Iz dosedanjih raziskav je razvidno, da ima srebro nizko toksičnost do človeških celic, zato njegova uporaba pri nizkih koncentracijah ne pomeni večjega tveganja za zdravje ljudi [21][22][23][24][25][26].…”

Section: Uvodunclassified

“…Protimikrobna aktivnost Ag ND je odvisna od velikosti in oblike delcev in tudi od njihove koncentracije. Manjši Ag ND so protimikrobno učinkovitejši kot večji Ag ND, saj imajo večjo speci čno površino, s katero lahko tvorijo medmolekulske interakcije, prav tako pa zato, ker so majhni, laže prodrejo v celico mikroorganizma [10,17,33,34]. Ag ND trikotne oblike imajo boljše protimikrobne lastnosti kot delci krogelne in paličaste oblike [10,35].…”

Section: Uvodunclassified

Influence of Preparation Procedure of Colloidal Silver Solution on Properties of Fibres from Polylactic Acid

Klemenčič¹,

Muha²,

Klepacka³

et al. 2013

TEK

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Namen raziskave je bil proučiti vpliv postopka priprave koloidne raztopine srebra na lastnosti vlaken iz polimlečne kisline (vlakna PLA). Koloidni raztopini srebra sta bili pripravljeni v dveh topilih, in sicer v vodi in etanolu pri ustreznih pogojih, in naneseni na vlakna PLA po izčrpalnem postopku, da se doseže njihova protimikrobna aktivnost. Oblika, velikost in kemijska sestava srebrovih nanodelcev (Ag ND) v koloidnih raztopinah so bile določene s spektroskopijo UV-Vis ter presevno elektronsko mikroskopijo z energijsko-disperzijsko spektroskopijo rentgenskih žarkov (EDS). Morfološke lastnosti obdelanih vlaken so bile proučevane z vrstično elektronsko mikroskopijo, prisotnost Ag ND na njihovi površini pa potrjena z analizo EDS. Koncentracija Ag ND na obdelanih vlaknih je bila določena z masno spektroskopijo z induktivno sklopljeno plazmo. Protimikrobne lastnosti obdelanih vlaken PLA so bile proučene na podlagi meritev bakterijske redukcije za bakterijsko vrsto Escherichia coli po standardni metodi ASTM E 2149-01. Iz rezultatov raziskave je bilo razvidno, da so se tako v vodni kot etanolni koloidni raztopini oblikovali pretežno monomeri Ag ND, ki so bili krogelne oblike in katerih velikost ni presegla 15 nm. Na količino adsorbiranega Ag na vlaknih PLA je neposredno vplivalo uporabljeno topilo. Koncentracija Ag je bila večja na vlaknih, obdelanih v vodi, kot v etanolu. Nanos Ag ND iz obeh topil je zagotovil odlično protibakterijsko zaščito vlaken PLA. V nasprotju z vodo je obdelava vlaken v etanolu povzročila morfološke spremembe vlaken.

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“…The choice of a suitable method for the attachment of silver chloride nanoparticles was based on one earlier studies, where comparison has been made on the influence of differently chemically modified solgel systems on the adsorption of these nanoparticles and their release from viscose nonwoven [29]. A commercial solgel system has been adopted since the same formulation was already effectively attached onto a cellulose-based fabric and due to the fact that such materials have a better possibility to be used in commercial wound dressings during the times to come [30,31]. The greatest attention was paid to finding the optimum modification processes of the cellulosic nonwoven in order to enhance its hydrophilic properties.…”

mentioning

confidence: 99%

Nonwoven Cellulose Substrates for Modern Wound Dressings

Gokarneshan¹,

Rachel²,

Rajendran³

et al. 2015

Emerging Research Trends in Medical Textiles

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Antimicrobial cotton fibres prepared by in situ synthesis of AgCl into a silica matrix

Cited by 37 publications

References 72 publications

Drug‐loaded microparticles prepared by the one‐step deposition of calcium carbonate/alginate onto cotton fabrics

Drug‐loaded microparticles prepared by the one‐step deposition of calcium carbonate/alginate onto cotton fabrics

Influence of Preparation Procedure of Colloidal Silver Solution on Properties of Fibres from Polylactic Acid

Nonwoven Cellulose Substrates for Modern Wound Dressings

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