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Nanofibers: Production of cellulose nanofibers. Infoteca-e
VALADARES, L. F..
Technology for obtaining cellulose nanofibers from agro-industrial residues or pure cellulose sources by pretreatment and hydrolysis.
Tipo: Folders Palavras-chave: Nanofibers; Cellulose; Hydrolysis.
Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133077
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Natural fibers for hydrogels production and their applications in agriculture Acta Agron. (Palmira)
Serna-Cock,Liliana; Guancha-Chalapud,Marcelo Alexander.
Abstract This paper presents a review on hydrogels applied to agriculture emphasizing on the use of natural fibers. The objectives were to examine, trends in research addressed to identify natural fibers used in hydrogels development and methods for modifying natural fibers, understand factors which determine the water retention capacity of a hydrogel. Consequently, this paper shows some methodologies used to evaluate the hydrogels efficiency and to collect in tables, relevant information in relation to methods of natural fibers modification and hydrogel synthesis. It was found that previous research focused on hydrogels development processed with biodegradable polymers such as starch, chitosan and modified natural fibers, cross-linked with potassium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydrogels; Methods of modifying fiber; Nanofibers; Superabsorbent; Water retention capacity.
Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000400495
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Preparation and characterization of naftifine-loaded poly(vinyl alcohol)/sodium alginate electrospun nanofibers BJPS
Esentürk,İmren; Balkan,Timuçin; Güngör,Sevgi; Saraç,Sezai; Erdal,Meryem Sedef.
In this study, naftifine (a topical antifungal drug) loaded poly(vinyl) alcohol (PVA)/sodium alginate (SA) nanofibrous mats were prepared using the single-needle electrospinning technique. The produced nanofibers were crosslinked with glutaraldehyde (GTA) vapor. The morphology and diameter of the electrospun nanofibers were studied by scanning electron microscopy (SEM). SEM images showed the smoothness of the nanofibers and indicated that the fiber diameter increased with crosslinking and drug loading. Atomic force microscopy (AFM) images confirmed the uniform production of the scaffolds, and elemental mapping via energy dispersive X-ray spectroscopy (EDS) showed the uniform distribution of the drug within the nanofibers. An attenuated total reflectance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Naftifine; Nanofibers; Electrospinning; Topical drug delivery.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100606
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