Structural investigation of carboxymethyl cellulose biodeterioration by Bacillus subtilis subsp. subtilis NCIB 3610

Testing Classical Approach to Polymer Solutions on SAXS Data of λ-Carrageenan, κ-Carrageenan and Methylcellulose Systems

“…In such a case one could try to use the modeling approach. [28][29][30] The presented results clearly show that in the case of both KC and MC systems the dynamic correlation length ξ increases as the gel is formed. This is due to the fact that the dynamic parts of the polymer chains shorten between the progressing static entanglements and consequently become more rigid -they are correlated to longer distances ξ.…”

Paint-degrading microorganisms

“…Bacillus subtilis subsp. subtilis NCIB 3610 was also shown to synthesize cellulases that effectively break down chemical bonds in carboxymethyl cellulose; however, it is not able to reutilize the end products of hydrolysis [5]. Obidi et al [2009] , respectively [6].…”

Supramolecular structure of methyl cellulose and lambda- and kappa-carrageenan in water: SAXS study using the string-of-beads model

“…Due to their chemical and structural variability they exhibit different structural and dynamic phenomena that continue to present a great research challenge, even for modern techniques. In our studies we focused on structural and dynamic investigations utilizing various scattering techniques, i.e., small-angle X-ray scattering (SAXS), static light scattering (SLS) and dynamic light scattering (DLS) Benigar et al, 2015;Benigar et al, 2016;Cerar, Jamnik, & Tomsic, 2015;Dogsa, Štrancar, Laggner, & Stopar, 2008;Dogsa et al, 2014;Orehek et al, 2013). The advantage of these techniques is that they are, in general, nondestructive and can directly probe the polymers in aqueous solutions.…”

“…Nonetheless, in the present study we successfully extend the range of the appropriate SAXS data analysis for the studied polysaccharide systems by also taking into account the contribution of the form factor of the polymer chain or its segments. We achieve this by applying the string-of-beads model (Benigar et al, 2015;Benigar et al, 2016;Dogsa et al, 2008;Dogsa et al, 2014;Orehek et al, 2013), which is briefly described later in the text and provides some additional information about the polymer structure in comparison to the classic approach. Furthermore, it also enables a straightforward visualization of the modeled molecular configurations and even of the anticipated modeled supramolecular structure of the system.…”