Bio-adhesives from unfolded soy protein reinforced by nano-chitosan for sustainable textile industry

Abstract

Biodegradable adhesives from nano-chitosan-reinforced unfolded soy protein have been fabricated to potentially reduce environmental pollution and drive a sustainable textile industry. The weak adhesion strength and poor water stability of soy protein films limit their use in the textile industry. In this work, the influence of sodium-dodecyl-sulfonate on unfolding of soy protein, and the reinforcement effects of nano-chitosan on the tensile properties of unfolded soy protein adhesives were investigated. The results demonstrate that the bio-adhesives developed had 157% and 85% increments on tensile strength and water stability compared with unmodified soy protein. Also, dry and wet strength of the pulp/viscose wet-laid nonwovens were increased 43% and over 100% after adhesion, indicating that modified soy protein shows promise for use as a textile bio-adhesive for sustainable industry.

Myeloperoxidase-induced fibrinogen unfolding and clotting

“…Protein unfolding is a prerequisite for an alternative folding pathway including amyloid aggregation 1,2 . Unfolded proteins may be used in development of protein films and coatings with special properties such as enhanced mechanical stability [3][4][5] , resistance to protein adsorption or platelet adhesion 6,7 and other advantages 8 .…”

“…Protein unfolding is a prerequisite for an alternative folding pathway including amyloid aggregation 1,2 . Unfolded proteins may be used in development of protein films and coatings with special properties such as enhanced mechanical stability 3–5 , resistance to protein adsorption or platelet adhesion 6,7 and other advantages 8 . Unfolding of a protein molecule may lead to the loss of its biological function 9 that has important consequences in biosensor 10,11 and pharmaceutical applications 12 .…”

Myeloperoxidase‐induced fibrinogen unfolding and clotting

“…It is often a prerequisite for an alternative folding pathway including amyloid aggregation (Chaturvedi et al, 2016; Chiti & Dobson, 2017). Unfolded proteins may be used in the development of protein films and coatings with special properties such as enhanced mechanical stability (Knowles et al, 2010; Schmid et al, 2017; Xu et al, 2019), resistance to protein adsorption or platelet adhesion (Kottana et al, 2021; Safiullin et al, 2015; Skarja et al, 1998), and other advantages (Wang et al, 2016; Zhang, Zang, et al, 2017). Unfolding of a protein molecule may lead to the loss of its biological function (Alaei & Moosavi‐Movahedi, 2020) that has important consequences in biosensors (Bontidean et al, 1998; Schuster, 2018) and pharmaceutical applications (Manning et al, 2010).…”

“…It is often a prerequisite for an alternative folding pathway including amyloid aggregation (Chaturvedi et al, 2016;Chiti & Dobson, 2017). Unfolded proteins may be used in the development of protein films and coatings with special properties such as enhanced mechanical stability (Knowles et al, 2010;Schmid et al, 2017;Xu et al, 2019), resistance to protein adsorption or platelet adhesion ( Kottana et al, 2021;Safiullin et al, 2015;Skarja et al, 1998), and other advantages (Wang et al, 2016;Zhang, Zang, et al, 2017).…”

An Eco-Effective Soybean Meal-Based Adhesive Enhanced with Diglycidyl Resorcinol Ether

“…The mechanical property of neat soybean meal adhesive mainly depended on a molecular hydrogen bond, which was easy to break by moisture intrusion. The low solids content of neat soybean meal adhesive indicates more water needs to be removed during hot press, resulting in the destruction of bonding properties [31,32]. In addition, the high viscosity of neat soybean meal adhesive could influence the adhesive flowability on the veneer and further deteriorate the mechanical property of the adhesive.…”