Chitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity

Quadros, Camila C. de; Faria, Vinícius W.; Klein, Manuela Poletto; Hertz, Plinho Francisco; Scheeren, Carla Weber

doi:10.1155/2013/140273

Cited by 11 publications

(2 citation statements)

References 37 publications

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“…Furthermore, the MNPs can present a wide range of toxicity, ranging from fungi to the humans. On the other hand, they also have biomedical applications including catheters, dental material, medical devices and implants, using cellulose acetate as a good candidate due to its hydrophilic, non-toxic, biodegradable, properties [161][162][163]. Different synthesis methods have been developed for impregnation of metallic nanoparticles in tissue graft and were summarized elsewhere [164,165].…”

Section: Animal World and Synthesis Of Metallic Nanoparticlementioning

confidence: 99%

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Das

Pachapur

Lonappan

et al. 2017

Nanotechnol. Environ. Eng.

374

138

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The green synthesis (GS) of different metallic nanoparticles (MNPs) has re-evaluated plants, animals and microorganisms for their natural potential to reduce metallic ions into neutral atoms at no expense of toxic and hazardous chemicals. Contrary to chemically synthesized MNPs, GS offers advantages of enhanced biocompatibility and thus has better scope for biomedical applications. Plant, animals and microorganisms belonging to lower and higher taxonomic groups have been experimented for GS of MNPs, such as gold (Au), silver (Ag), copper oxide (CuO), zinc oxide (ZnO), iron (Fe 2 O 3 ), palladium (Pd), platinum (Pt), nickel oxide (NiO) and magnesium oxide (MgO). Among the different plant groups used for GS, angiosperms and algae have been explored the most with great success. GS with animal-derived biomaterials, such as chitin, silk (sericin, fibroin and spider silk) or cell extract of invertebrates have also been reported. Gram positive and gram negative bacteria, different fungal species and virus particles have also shown their abilities in the reduction of metal ions. However, not a thumb rule, most of the reducing agents sourced from living world also act as capping agents and render MNPs less toxic or more biocompatible. The most unexplored area so far in GS is the mechanism studies for different natural reducing agents expect for few of them, such as tea and neem plants. This review encompasses the recent advances in the GS of MNPs using plants, animals and microorganisms and analyzes the key points and further discusses the pros and cons of GS in respect of chemical synthesis.

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Section: Animal World and Synthesis Of Metallic Nanoparticlementioning

confidence: 99%

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Das

Pachapur

Lonappan

et al. 2017

Nanotechnol. Environ. Eng.

374

138

View full text Add to dashboard Cite

show abstract

“…For these applications, cellulose acetate (CA) is a good candidate because this polymer is hydrophilic, non-toxic, biodegradable and renewable with good processability [2][3][4][5][6][7] . Polymeric membranes have been prepared using several biopolymers (cellulose, carboxymethylcellulose, chitosan, polylactic acid) [1,[5][6][7][8][9][10] polymers (polycaprolactone, polyaniline, polysulfone, polyurethane) and copolymers (styrene, divinylbenzene) for different applications [11][12][13][14] . Conducting polymers are a new class of polymers that has received particular interest for the production of membranes and films [14] .…”

Section: Introductionmentioning

confidence: 99%

Metal Nanoparticles/Ionic Liquid/Cellulose: Polymeric Membrane for Hydrogenation Reactions

Gelesky

Scheeren

2014

Polímeros

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Rhodium and platinum nanoparticles were supported in polymeric membranes with 10, 20 and 40 μm thickness. The polymeric membranes were prepared combining cellulose acetate and the ionic liquid (IL) 1-n-butyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide (BMI.(NTf) 2 . The presence of metal nanoparticles induced an increase in the polymeric membrane surface areas. The increase of the IL content resulted in an improvement of elasticity and decrease in tenacity and toughness, whereas the stress at break was not affected. The presence of IL probably causes an increase in the separation between the cellulose molecules that result in a higher flexibility and processability of the polymeric membrane. The CA/IL/M(0) combinations exhibit an excellent synergistic effect that enhances the activity and durability of the catalyst for the hydrogenation of cyclohexene. The CA/IL/M(0) polymeric membrane displays higher catalytic activity (up to 7.353 h -1 ) for the 20 mm of CA/IL/Pt(0) and stability than the nanoparticles dispersed only in the IL.

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Biomedical exploitation of chitin and chitosan-based matrices via ionic liquid processing

Silva

Gomes

Rodrigues

et al. 2020

Handbook of Chitin and Chitosan

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Chitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity

Cited by 11 publications

References 37 publications

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Metal Nanoparticles/Ionic Liquid/Cellulose: Polymeric Membrane for Hydrogenation Reactions

Biomedical exploitation of chitin and chitosan-based matrices via ionic liquid processing

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