Environmentally friendly ultrosound synthesis and antibacterial activity of cellulose/Ag/AgCl hybrids

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

“…Obtained data are in good agreement with those reports, where the dose-dependent impact of Ag/AgCl-NPs was evaluated [20,21,22,23]. The antifungal activity of nanoparticles also widely discussed in the literature and the impact of nanoparticles was evaluated against some genus of fungi, such as Candida , Aspergillus and Penicillium [26].…”

“…Since bioflocculants basically are composed of polysaccharide macromolecules, it is highly possible to reduce the silver ions and stabilize them into the polysaccharide matrix. This evidence makes the parallel synthesis of both AgCl-NPs and AgNPs in the presence of chloride ions and polysaccharide matrix inevitable [21,22,23]. To biofabricate only AgCl-NPs, a concentration-dependent method was evaluated.…”

“…As-synthesized nanocomposite exhibited considerable antibacterial activity against S. aureus and E. coli [20]. Besides, the chitosan oligomers [21], and bacterial [22] and non-bacterial cellulose were also used as a template to synthesize Ag/AgCl-NPs [23]. These nanocomposites also displayed high antibacterial activity [22].…”

Recent Advances on the Development of Antibacterial Polysaccharide-Based Materials

“…Antibacterial cellulose-based materials are obtained primarily by the simple combination of cellulose (or cellulose derivatives) with distinct biocides (including metal and metal oxide nanoparticles and salts, Antibacterial Cellulose/Metal (Metal Oxide) Nanoparticle Composites In the last decade, the combination of different forms of cellulose, like plant fibers (Csóka et al 2012;Raghavendra et al 2013;Simonc et al 2008;Teli and Sheikh. 2012;Wang et al 2011Wang et al , 2013bZhu et al 2009), cotton fabrics Park et al 2012), filter paper (Imani et al 2011;Tang et al 2009; Tankhiwale and Bajpai 2009), microcrystalline cellulose (Dong et al 2014;Huang et al 2013;Jankauskaitė et al 2014;Li et al 2011Li et al , 2012a, bacterial cellulose (Barud et al 2011;Dobre and Stoica-Guzun 2013;Jung et al 2009;Liu et al 2012a;Maneerung et al 2008;Maria et al 2010;Sureshkumar et al 2010;Wu et al 2014b;Yang et al 2012aYang et al , b, 2013Zhang et al 2013), nanofibrillated cellulose (Díez et al 2011;Martins et al 2012;Xiong et al 2013), as well as cellulose derivatives (e.g., cellulose acetate (Hyuk Jang et al 2014;Perera et al 2014;Scheeren et al 2011;Son et al 2006), hydroxypropyl cellulose (Angelova et al 2012), and cellulose acetate phthalate (Necula et al 2010)), with silver nanoparticles (Ag NPs), following diverse methods, is definitely the most extensively studied strategy for the design of ant...…”

“…A comparable methodology was also used to prepare cellulose/AgCl nanocomposites (Li et al 2012a); however, in this case the formation of the nanocomposites was based on the simultaneous formation of AgCl nanoparticles and cellulose Polysaccharides DOI 10.1007/978-3-319-03751-6_12-1 # Springer International Publishing Switzerland 2014 precipitation. More recently, antibacterial cellulose/Ag/AgCl hybrids against E. coli and S. aureus were also fabricated by means of an environmentally friendly and rapid methodology using a cellulose solution in NaOH/urea, AgNO 3 , and AlCl 3 with ultrasound agitation (Dong et al 2014). In a distinct manner, new antibacterial nanocomposite films against E. coli and S. aureus were also prepared by employing amino acids (phenylalanine or tryptophan) functionalized TEMPO-oxidized microcrystalline cellulose with Ag NPs prepared by in situ reduction via homogeneous (in an ionic liquid solution) and heterogeneous (in a aqueous dispersion) methods .…”