Biobased nanocomposites based on collagen, cellulose nanocrystals, and plasticizers

Abstract

Collagen (Col) is extensively used in various applications, including pharmaceutical, agricultural, and food applications. The materials based in Col may exhibit properties of biomedical interest because of their low toxicity, high structural capacity support, controlled biodegradability, and biocompatibility. However, Col has poor thermal and mechanical properties. The addition of plasticizers (Plas's) and fillers is an established strategy for enhancing the properties of the resulting nanocomposites. In this study, nanocomposites based on Col and cellulose nanocrystals were developed in two different ways and with three different Plas's. These materials were subjected to structural, thermal, mechanical, and morphological analysis. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44954.

Materials science perspective of multifunctional materials derived from collagen

“…To date, collagen films have been predominantly used in medicine for wound healing applications since they have demonstrated the ability to create a barrier between a wound and its external environment thereby limiting the likelihood of infections [181]. For these applications, traditionally, collagen was mixed with different polymers such as chitosan [206][207][208][209][210][211], starch/soy protein [212], hydroxyethyl cellulose [22], cellulose nanocrystals [213,214], polyvinyl alcohol [215], and (HA [216], to derive a wide range of composite films. The HA is highly biocompatible and the resulting films can be used for numerous medical applications such as maxillofacial surgery, dental implants, bone growth procedures, and knee surgeries [217].…”

Fabrication of cellulose nanocrystals (CNCs) in choline chloride-citric acid (ChCl-CA) solvent to lodge antimicrobial activity

“…Recently, nanosized and high crystalline cellulose with high rigidity, tensile stiffness, and shear force has attracted much attention due to its intrinsic properties (Habibi 2014;Wang et al 2018). Thus, cellulose nanocrystals (CNCs) can be used as a reinforcing material to improve surface and antifouling properties of polymers (Jin et al 2016;Rodrigues et al 2017;Bai et al 2019). In addition, CNCs possess hydroxyl groups and can be modified by oxidation, esterification, etherification, and grafting copolymerization (Liu et al 2017a).…”