AI Article Synopsis
- The study focuses on creating a lightweight porous material (TOCNF-G-LPM) using TEMPO-oxidized cellulose nanofibril and gelatin, with glutaraldehyde as a crosslinking agent.
- Increasing the gelatin concentration enhanced the material's porosity (from 98.53% to 97.40%) and decreased its density (from 0.0372 to 0.0236 g/cm³), while also leading to a more organized internal structure.
- Gelatin addition improved the thermal and mechanical properties of the material, reduced its water and oil absorption, and showed good biocompatibility with no negative effects on the growth of the model organism C. elegans.
Article Abstract
The composite lightweight porous material (TOCNF-G-LPM) based on TEMPO-oxidized cellulose nanofibril (TOCNF) and gelatin were facilely prepared by ambient pressure drying using glutaraldehyde as crosslinking agent. The influence of gelatin addition on the physicochemical properties of TOCNF-G-LPM was investigated. The long-size entangled structure of TOCNF maintained the skeleton network of TOCNF-G-LPM while gelatin can adjust the characteristics of highly porous network (porosity of 98.53%-97.40%) and light weight (density of 0.0236-0.0372 g/cm) with increasing gelatin concentration (0.2-1.0 wt%). The results of scanning electron microscopy (SEM) and confocal laser scanning microscope (CLSM) indicated that the internal structure of TOCNF-G-LPM became more ordered, uniform and denser as gelatin concentration increased. Introducing gelatin decreased water and oil absorption properties, but improved the thermal, mechanical properties and shape recovery ability of TOCNF-G-LPM at appropriate addition. Furthermore, TOCNF-G-LPM showed no significant effect on the growth and reproduction of Caenorhabditis elegans (C. elegans), confirming a good biocompatibility.
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| http://dx.doi.org/10.1016/j.foodchem.2023.136497 | DOI Listing |
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