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Nanocomposite oxygen reduction electrocatalysts formed using bioderived reducing agents

“…X-Ray diffraction is very useful for the analysis of metallic nanostructures formed using crystalline cellulose nanofibrils as the XRD pattern of crystalline cellulose is well known and it may allow us to investigate the effect of the reduction reaction on the nanofibrils. The reduction of Ag + to Ag by polysaccharides occurs via the reducing end groups of cellulose 35,36 and previous work has suggested that polysaccharide-based reducing agents decompose during reaction with metal ions. 37 However, other work has also shown that crystalline cellulose can retain its composition during reduction of metal ions.…”

Photo-induced growth of silver nanoparticles using UV sensitivity of cellulose fibers

“…In this case, the shortcomings of the other methods are weaker, as the nanoparticles will be firmly attached on the surface and precursors will not remain in the matrix after washing. UV photon absorption is expected to break the oxygen bridge between the glucose monomers, forming aldehyde groups that can reduce Ag + ions [22,23]. We will give a qualitative model to explain the growth mechanism.…”

Improvement of Chitosan Adsorption onto Cellulosic Fabrics by Plasma Treatment

“…1 The use of natural cellulose fibers for developing medical materials has recently gained considerable attention, as emphasized by the numerous reviews on the topic. [1][2][3][4][5][6][7][8] Several methods to modify cellulose fibers for medical applications have been described in literature: (i) oxidation procedures, (ii) synthesis of microbial cellulose, (iii) incorporation of metallic nanoparticles, and (iv) various coating strategies at the finishing stages using quaternary ammonium compounds, polyhexamethylene biguanides (PHMB), triclosans, regenerable N-halamine and peroxyacid, some synthetic dyes, etc. [1][2][3][4][5][6][7][8] Among the various polysaccharide products (dextran, hyaluronic acid-derivates, carboxymethyl cellulose-derivates, heparin, carrageenan, and alginate-based products, etc.…”