دورية أكاديمية
Self-Healing Composite Coating Fabricated with a Cystamine Cross-Linked Cellulose Nanocrystal-Stabilized Pickering Emulsion.
| العنوان: | Self-Healing Composite Coating Fabricated with a Cystamine Cross-Linked Cellulose Nanocrystal-Stabilized Pickering Emulsion. |
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| المؤلفون: | Xu G; Bristol Composites Institute, School of Civil, Aerospace and Design Engineering (CADE), University of Bristol, University Walk, Bristol BS8 1TR, U.K., Onyianta AJ; Bristol Composites Institute, School of Civil, Aerospace and Design Engineering (CADE), University of Bristol, University Walk, Bristol BS8 1TR, U.K., Eloi JC; School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K., Harniman RL; School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K., Laverock J; School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K., Bond I; Bristol Composites Institute, School of Civil, Aerospace and Design Engineering (CADE), University of Bristol, University Walk, Bristol BS8 1TR, U.K., Diejomaoh OA; Bristol Composites Institute, School of Civil, Aerospace and Design Engineering (CADE), University of Bristol, University Walk, Bristol BS8 1TR, U.K., Koev TT; School of Pharmacy, University of East Anglia, Norwich Research Park NR4 7TJ, U.K., Khimyak YZ; School of Pharmacy, University of East Anglia, Norwich Research Park NR4 7TJ, U.K., Eichhorn SJ; Bristol Composites Institute, School of Civil, Aerospace and Design Engineering (CADE), University of Bristol, University Walk, Bristol BS8 1TR, U.K. |
| المصدر: | Biomacromolecules [Biomacromolecules] 2024 Feb 12; Vol. 25 (2), pp. 715-728. Date of Electronic Publication: 2024 Jan 25. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 100892849 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1526-4602 (Electronic) Linking ISSN: 15257797 NLM ISO Abbreviation: Biomacromolecules Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : American Chemical Society, c2000- |
| مواضيع طبية MeSH: | Cystamine* , Nanoparticles*/chemistry, Emulsions/chemistry ; Linseed Oil ; Cellulose/chemistry ; Water/chemistry |
| مستخلص: | A gelled Pickering emulsion system was fabricated by first stabilizing linseed oil droplets in water with dialdehyde cellulose nanocrystals (DACNCs) and then cross-linking with cystamine. Cross-linking of the DACNCs was shown to occur by a reaction between the amine groups on cystamine and the aldehyde groups on the CNCs, causing gelation of the nanocellulose suspension. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to characterize the cystamine-cross-linked CNCs (cysCNCs), demonstrating their presence. Transmission electron microscopy images evidenced that cross-linking between cysCNCs took place. This cross-linking was utilized in a linseed oil-in-water Pickering emulsion system, creating a novel gelled Pickering emulsion system. The rheological properties of both DACNC suspensions and nanocellulose-stabilized Pickering emulsions were monitored during the cross-linking reaction. Dynamic light scattering and confocal laser scanning microscopy (CLSM) of the Pickering emulsion before gelling imaged CNC-stabilized oil droplets along with isolated CNC rods and CNC clusters, which had not been adsorbed to the oil droplet surfaces. Atomic force microscopy imaging of the air-dried gelled Pickering emulsion also demonstrated the presence of free CNCs alongside the oil droplets and the cross-linked CNC network directly at the oil-water interface on the oil droplet surfaces. Finally, these gelled Pickering emulsions were mixed with poly(vinyl alcohol) solutions and fabricated into self-healing composite coating systems. These self-healing composite coatings were then scratched and viewed under both an optical microscope and a scanning electron microscope before and after self-healing. The linseed oil was demonstrated to leak into the scratches, healing the gap automatically and giving a practical approach for a variety of potential applications. |
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| المشرفين على المادة: | R110LV8L02 (Cystamine) 0 (Emulsions) 8001-26-1 (Linseed Oil) 9004-34-6 (Cellulose) 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20240125 Date Completed: 20240214 Latest Revision: 20240216 |
| رمز التحديث: | 20240216 |
| مُعرف محوري في PubMed: | PMC10865351 |
| DOI: | 10.1021/acs.biomac.3c00915 |
| PMID: | 38271957 |
| قاعدة البيانات: | MEDLINE |
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