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FTIR images of cotton fabric coated with nano-Ag via chitosan. a) Shrimp chitosan+nano-Ag coated fabric, b) Crayfish chitosan+nano-Ag coated fabric, c) Crayfish chitosancoated fabric and d) Shrimp chitosan-coated fabric.

FTIR images of cotton fabric coated with nano-Ag via chitosan. a) Shrimp chitosan+nano-Ag coated fabric, b) Crayfish chitosan+nano-Ag coated fabric, c) Crayfish chitosancoated fabric and d) Shrimp chitosan-coated fabric.

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The finishing process with the antibacterial agents that protect the environment and human health is gaining importance. This study aims 1) to develop new generation antibacterial finishes using chitosan as a binder for nano-Ag coatings, 2) to determine the applicability of chitosan from shrimp and crayfish for textile production and 3) to contribu...

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... −1 for shrimp chitin and at 1655 and 1619 cm -1 for crayfish chitin. Another characteristic band showing amide II stretching was recorded at 1552 cm -1 for both shrimp and crayfish chitin (Fig. 3). This also shows that the isolated chitin is in alpha form. The FTIR spectra of coatings using shrimp and crayfish chitosan as binders are presented in Fig. 4. Previous studies showed that the characteristic absorption bands of cellulose in the FTIR spectra of cotton fabric were observed at 1430 cm -1 (C-H wagging), 1364 cm -1 (C-H bending), 1105 cm -1 (C-O-C, asymmetric bridge stretching), and 1160, 1060 and 1028 cm −1 (C-O stretching) ( Xu et al. 2019). These peaks were observed in our ...
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... compared to the FTIR bands of crayfish and shrimp chitosan-coated cotton fabric (Figs 4c, 4d), changes were observed in the FTIR spectra of chitosan+nano Ag coated fabric samples (Figs 4a, 4b). As mentioned in previous studies, these shifting in the FTIR peaks indicate that the formation of coordination bonds between the amine groups of the chitosan and the nanoAg particles ( Xu et al. 2019), or that Ag is chelated by both amino and hydroxyl groups of the chitosan (Chen et al. 2014). ...
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... compared to the FTIR bands of crayfish and shrimp chitosan-coated cotton fabric (Figs 4c, 4d), changes were observed in the FTIR spectra of chitosan+nano Ag coated fabric samples (Figs 4a, 4b). As mentioned in previous studies, these shifting in the FTIR peaks indicate that the formation of coordination bonds between the amine groups of the chitosan and the nanoAg particles ( Xu et al. 2019), or that Ag is chelated by both amino and hydroxyl groups of the chitosan (Chen et al. 2014). ...
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... −1 for shrimp chitin and at 1655 and 1619 cm -1 for crayfish chitin. Another characteristic band showing amide II stretching was recorded at 1552 cm -1 for both shrimp and crayfish chitin (Fig. 3). This also shows that the isolated chitin is in alpha form. The FTIR spectra of coatings using shrimp and crayfish chitosan as binders are presented in Fig. 4. Previous studies showed that the characteristic absorption bands of cellulose in the FTIR spectra of cotton fabric were observed at 1430 cm -1 (C-H wagging), 1364 cm -1 (C-H bending), 1105 cm -1 (C-O-C, asymmetric bridge stretching), and 1160, 1060 and 1028 cm −1 (C-O stretching) ( Xu et al. 2019). These peaks were observed in our ...
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... compared to the FTIR bands of crayfish and shrimp chitosan-coated cotton fabric (Figs 4c, 4d), changes were observed in the FTIR spectra of chitosan+nano Ag coated fabric samples (Figs 4a, 4b). As mentioned in previous studies, these shifting in the FTIR peaks indicate that the formation of coordination bonds between the amine groups of the chitosan and the nanoAg particles ( Xu et al. 2019), or that Ag is chelated by both amino and hydroxyl groups of the chitosan (Chen et al. 2014). ...
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... compared to the FTIR bands of crayfish and shrimp chitosan-coated cotton fabric (Figs 4c, 4d), changes were observed in the FTIR spectra of chitosan+nano Ag coated fabric samples (Figs 4a, 4b). As mentioned in previous studies, these shifting in the FTIR peaks indicate that the formation of coordination bonds between the amine groups of the chitosan and the nanoAg particles ( Xu et al. 2019), or that Ag is chelated by both amino and hydroxyl groups of the chitosan (Chen et al. 2014). ...

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... Among these, Ag, TiO 2 and ZnO nanoparticles are of great interest. Because of their wide range antimicrobial effect, silver nanoparticles and silver colloids have attracted great interest as antibacterial agents to prevent wound infection or to product antibacterial textiles [11]. Ag nanoparticles have great antibacterial efficiency as they have an exceedingly large surface area that provides good interaction with bacteria. ...
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... In addition, the peak of chitosan assigned to the tensile vibrations of the Amit C-O bonds, which was observed around 1641 cm -1 in the chitosan-coated fabric, shifted to 1639 cm -1 in the chitosan+nano Ag coated fabric. This result is also supported by Erdogan [11]. These peak shifts may be indicative of bond formation between the chitosan and nano Ag particles [37] or the chelation of Ag by chitosan [38,39]. ...
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