Effect of modified cellulose nanocrystals on microstructural and mechanical properties of polyvinyl alcohol/ovalbumin biocomposite scaffolds
In order to improve the functional compatibility and mechanical performance of biocomposite scaffolds, two different biocomposite scaffolds based on ovalbumin (OVA)/polyvinyl alcohol (PVA) reinforced with unmodified and aminated cellulose nanocrystals (CNCs) cross-linked with glutaraldehyde (GA) wer...
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| Veröffentlicht in: | Materials letters 2014-08, Vol.129, p.61-64 |
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| creator | Kumar, Anuj Negi, Yuvraj Singh Choudhary, Veena Bhardwaj, Nishi Kant |
| description | In order to improve the functional compatibility and mechanical performance of biocomposite scaffolds, two different biocomposite scaffolds based on ovalbumin (OVA)/polyvinyl alcohol (PVA) reinforced with unmodified and aminated cellulose nanocrystals (CNCs) cross-linked with glutaraldehyde (GA) were fabricated by a freeze drying process. It was observed that the microstructure and mechanical properties of the biocomposite scaffolds were not affected to a great extent by the presence of aminated CNCs. At a compressive strain of 70%, the compressive strengths of PVA/OVA (porosity: ~85%) (a), PVA–CNCs/OVA (porosity: ~87.4%) (b), and PVA–CNCs–NH2/OVA (porosity: ~87.7%) (c) were 0.08MPa, 0.21MPa and 0.26MPa, respectively.
•Porous PVA–CNCs/OVA and PVA–CNCs–NH2/OVA scaffolds were fabricated by the freeze drying process.•The effect of unmodified and aminated CNCs on scaffolds was investigated.•Highly porous scaffolds having good pore-interconnectivity were produced.•Similar compressive strengths (0.21MPa and 0.26MPa) were observed. |
| doi_str_mv | 10.1016/j.matlet.2014.05.038 |
| format | Article |
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•Porous PVA–CNCs/OVA and PVA–CNCs–NH2/OVA scaffolds were fabricated by the freeze drying process.•The effect of unmodified and aminated CNCs on scaffolds was investigated.•Highly porous scaffolds having good pore-interconnectivity were produced.•Similar compressive strengths (0.21MPa and 0.26MPa) were observed.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2014.05.038</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Biomaterials ; Cellulose ; Cellulose nanocrystals ; Compressive strength ; Computer numerical control ; Freeze drying ; Mechanical properties ; Microstructure ; Nanocrystals ; Ovalbumin ; Polyvinyl alcohols ; Porosity ; Scaffolds</subject><ispartof>Materials letters, 2014-08, Vol.129, p.61-64</ispartof><rights>2014 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-c78e43623694edc1778e5cb651186446e6451d2dfa58dcf0f6ff3e5b96fbd1863</citedby><cites>FETCH-LOGICAL-c339t-c78e43623694edc1778e5cb651186446e6451d2dfa58dcf0f6ff3e5b96fbd1863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2014.05.038$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Kumar, Anuj</creatorcontrib><creatorcontrib>Negi, Yuvraj Singh</creatorcontrib><creatorcontrib>Choudhary, Veena</creatorcontrib><creatorcontrib>Bhardwaj, Nishi Kant</creatorcontrib><title>Effect of modified cellulose nanocrystals on microstructural and mechanical properties of polyvinyl alcohol/ovalbumin biocomposite scaffolds</title><title>Materials letters</title><description>In order to improve the functional compatibility and mechanical performance of biocomposite scaffolds, two different biocomposite scaffolds based on ovalbumin (OVA)/polyvinyl alcohol (PVA) reinforced with unmodified and aminated cellulose nanocrystals (CNCs) cross-linked with glutaraldehyde (GA) were fabricated by a freeze drying process. It was observed that the microstructure and mechanical properties of the biocomposite scaffolds were not affected to a great extent by the presence of aminated CNCs. At a compressive strain of 70%, the compressive strengths of PVA/OVA (porosity: ~85%) (a), PVA–CNCs/OVA (porosity: ~87.4%) (b), and PVA–CNCs–NH2/OVA (porosity: ~87.7%) (c) were 0.08MPa, 0.21MPa and 0.26MPa, respectively.
•Porous PVA–CNCs/OVA and PVA–CNCs–NH2/OVA scaffolds were fabricated by the freeze drying process.•The effect of unmodified and aminated CNCs on scaffolds was investigated.•Highly porous scaffolds having good pore-interconnectivity were produced.•Similar compressive strengths (0.21MPa and 0.26MPa) were observed.</description><subject>Biomaterials</subject><subject>Cellulose</subject><subject>Cellulose nanocrystals</subject><subject>Compressive strength</subject><subject>Computer numerical control</subject><subject>Freeze drying</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Nanocrystals</subject><subject>Ovalbumin</subject><subject>Polyvinyl alcohols</subject><subject>Porosity</subject><subject>Scaffolds</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kMFqHSEUhiW00Nu0b9CFy2xmoqPjzGwCIaRpIdBNC92Jo0fixdGJOhfuO-Sh63Cz7koOfOc__h9C3yhpKaHi9tguqngobUcob0nfEjZeoQMdB9bwaZg-oEPFhqYfhr-f0Oecj4QQPhF-QG-P1oIuOFq8ROOsA4M1eL_5mAEHFaJO51yUzzgGvDidYi5p02VLymMVDF5Av6jgdB3XFFdIxUHe89bozycXzhXzOr5EfxtPys_b4gKeXdRxWWN2BXDWytroTf6CPtp6Cb6-v9foz_fH3w8_mudfTz8f7p8bzdhUGj2MwJnomJg4GE2HOvd6Fj2lo-BcgOA9NZ2xqh-NtsQKaxn08yTsbCrCrtHNJbd--HWDXOTi8t5aBYhbllTwrmOEc1JRfkH34jmBlWtyi0pnSYnc5cujvMiXu3xJelnl17W7yxrUGicHSWbtIGgwLlXd0kT3_4B_QOqUrA</recordid><startdate>20140815</startdate><enddate>20140815</enddate><creator>Kumar, Anuj</creator><creator>Negi, Yuvraj Singh</creator><creator>Choudhary, Veena</creator><creator>Bhardwaj, Nishi Kant</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20140815</creationdate><title>Effect of modified cellulose nanocrystals on microstructural and mechanical properties of polyvinyl alcohol/ovalbumin biocomposite scaffolds</title><author>Kumar, Anuj ; Negi, Yuvraj Singh ; Choudhary, Veena ; Bhardwaj, Nishi Kant</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-c78e43623694edc1778e5cb651186446e6451d2dfa58dcf0f6ff3e5b96fbd1863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Biomaterials</topic><topic>Cellulose</topic><topic>Cellulose nanocrystals</topic><topic>Compressive strength</topic><topic>Computer numerical control</topic><topic>Freeze drying</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Nanocrystals</topic><topic>Ovalbumin</topic><topic>Polyvinyl alcohols</topic><topic>Porosity</topic><topic>Scaffolds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kumar, Anuj</creatorcontrib><creatorcontrib>Negi, Yuvraj Singh</creatorcontrib><creatorcontrib>Choudhary, Veena</creatorcontrib><creatorcontrib>Bhardwaj, Nishi Kant</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kumar, Anuj</au><au>Negi, Yuvraj Singh</au><au>Choudhary, Veena</au><au>Bhardwaj, Nishi Kant</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of modified cellulose nanocrystals on microstructural and mechanical properties of polyvinyl alcohol/ovalbumin biocomposite scaffolds</atitle><jtitle>Materials letters</jtitle><date>2014-08-15</date><risdate>2014</risdate><volume>129</volume><spage>61</spage><epage>64</epage><pages>61-64</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>In order to improve the functional compatibility and mechanical performance of biocomposite scaffolds, two different biocomposite scaffolds based on ovalbumin (OVA)/polyvinyl alcohol (PVA) reinforced with unmodified and aminated cellulose nanocrystals (CNCs) cross-linked with glutaraldehyde (GA) were fabricated by a freeze drying process. It was observed that the microstructure and mechanical properties of the biocomposite scaffolds were not affected to a great extent by the presence of aminated CNCs. At a compressive strain of 70%, the compressive strengths of PVA/OVA (porosity: ~85%) (a), PVA–CNCs/OVA (porosity: ~87.4%) (b), and PVA–CNCs–NH2/OVA (porosity: ~87.7%) (c) were 0.08MPa, 0.21MPa and 0.26MPa, respectively.
•Porous PVA–CNCs/OVA and PVA–CNCs–NH2/OVA scaffolds were fabricated by the freeze drying process.•The effect of unmodified and aminated CNCs on scaffolds was investigated.•Highly porous scaffolds having good pore-interconnectivity were produced.•Similar compressive strengths (0.21MPa and 0.26MPa) were observed.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2014.05.038</doi><tpages>4</tpages></addata></record> |
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| ispartof | Materials letters, 2014-08, Vol.129, p.61-64 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Biomaterials Cellulose Cellulose nanocrystals Compressive strength Computer numerical control Freeze drying Mechanical properties Microstructure Nanocrystals Ovalbumin Polyvinyl alcohols Porosity Scaffolds |
| title | Effect of modified cellulose nanocrystals on microstructural and mechanical properties of polyvinyl alcohol/ovalbumin biocomposite scaffolds |
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