Methacrylated Chitosan Based UV Curable Support for Enzyme Immobilization

Bayramoğlu, Gülay

doi:10.1590/1980-5373-mr-2016-0789

Cited by 16 publications

(15 citation statements)

References 30 publications

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“…One highly attractive substance for studies in the field of biocomposites is chitosan, a natural polycationic biopolymer, which is usually synthesized from chitin [ 1 , 2 ]. The most important properties of chitosan include biocompatibility, biodegradability, and physical and chemical characteristics that enable polymer materials of different kinds (gels, flakes, fibers, pearls, microspheres, nanoparticles) to be obtained.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Charaterization of Silica-Based Aldehyde Chitosan Hybrid Material for Biodiesel Purification

et al. 2017

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This study concerns the development and charaterization of Silica-based aldehyde Chitosan hybrid material as an adsorbent for biodiesel purification. This biocomposite was prepared by sol-gel route and oxidation with periodate, and then characterized. FTIR experiments showed that the hybrid formed presents absorption bands similar to those of Chitosan-Silica, with the exception of the vibrations at 1480 cm−1 and 1570 cm−1 attributed to the symmetrical angular deformation in the N-H plane, and possess large N2 Brunauer–Emmett–Teller (BET) surface areas. Thermogravimetric analysis (TG) and scanning electron microscopy (SEM) was also carried out. Adsorption studies of bioadsorbents involving the analysis of free glycerol, soap, acidity, diglycerides, triglycerides, and fluorescence spectroscopy showed that silica-based aldehyde chitosan has a good affinity for glycerol and a good purification process.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Charaterization of Silica-Based Aldehyde Chitosan Hybrid Material for Biodiesel Purification

et al. 2017

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“…In the FTIR spectrum of MA-Starch, it is possible to observe four new peaks that strongly support a successful methacrylation of some of the starch hydroxyl groups. The peaks at 1709 and 1300 cm −1 can be attributed to the C=O and C-O stretching vibrations, respectively, while the two peaks at 1640 and 815 cm −1 are assigned for the C=CH 2 out of plane bending vibrations [ 28 , 44 , 45 ].…”

Section: Resultsmentioning

confidence: 99%

“…Figure 3 shows that the formulations with 10 and 15 wt% starch started reacting immediately and reached a G' plateau after 90 s, while the 5 wt% starch formulation showed a delay in the curing process and reached a G' plateau after 120 s. This is probably explained by the low starch concentration in water, which in combination with the overall low DOS decreased the velocity of the radical reaction. attributed to the C = O and C-O stretching vibrations, respectively, while the two peaks at 1640 and 815 cm −1 are assigned for the C = CH2 out of plane bending vibrations [28,44,45].…”

Section: Photo-rheology Of the Photo-crosslinking Reaction For Forminmentioning

confidence: 99%

Light Processable Starch Hydrogels

et al. 2020

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Light processable hydrogels were successfully fabricated by utilizing maize starch as raw material. To render light processability, starch was gelatinized and methacrylated by simple reaction with methacrylic anhydride. The methacrylated starch was then evaluated for its photocuring reactivity and 3D printability by digital light processing (DLP). Hydrogels with good mechanical properties and biocompatibility were obtained by direct curing from aqueous solution containing lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) as photo-initiator. The properties of the hydrogels were tunable by simply changing the concentration of starch in water. Photo-rheology showed that the formulations with 10 or 15 wt% starch started curing immediately and reached G’ plateau after only 60 s, while it took 90 s for the 5 wt% formulation. The properties of the photocured hydrogels were further characterized by rheology, compressive tests, and swelling experiments. Increasing the starch content from 10 to 15 wt% increased the compressive stiffness from 13 to 20 kPa. This covers the stiffness of different body tissues giving promise for the use of the hydrogels in tissue engineering applications. Good cell viability with human fibroblast cells was confirmed for all three starch hydrogel formulations indicating no negative effects from the methacrylation or photo-crosslinking reaction. Finally, the light processability of methacrylated starch by digital light processing (DLP) 3D printing directly from aqueous solution was successfully demonstrated. Altogether the results are promising for future application of the hydrogels in tissue engineering and as cell carriers

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“…The environmental friendly CS is an ideal low-cost matrix. It meets the current market demands because of its easy production, less immunogenicity, nontoxicity, high biodegradability and desirable stability [61,62]. These superior properties have impelled extensive applications of CS as a support/matrix for enzyme immobilization.…”

Section: Chitosan As An Enzyme Scaffoldmentioning

confidence: 99%

Exploration of Chitinous Scaffold-Based Interfaces for Glucose Sensing Assemblies

Bagal-Kestwal

Chiang

2019

Polymers

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The nanomaterial-integrated chitinous polymers have promoted the technological advancements in personal health care apparatus, particularly for enzyme-based devices like the glucometer. Chitin and chitosan, being natural biopolymers, have attracted great attention in the field of biocatalysts engineering. Their remarkable tunable properties have been explored for enhancing enzyme performance and biosensor advancements. Currently, incorporation of nanomaterials in chitin and chitosan-based biosensors are also widely exploited for enzyme stability and interference-free detection. Therefore, in this review, we focus on various innovative multi-faceted strategies used for the fabrication of biological assemblies using chitinous biomaterial interface. We aim to summarize the current development on chitin/chitosan and their nano-architecture scaffolds for interdisciplinary biosensor research, especially for analytes like glucose. This review article will be useful for understanding the overall multifunctional aspects and progress of chitin and chitosan-based polysaccharides in the food, biomedical, pharmaceutical, environmental, and other diverse applications.

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Methacrylated Chitosan Based UV Curable Support for Enzyme Immobilization

Cited by 16 publications

References 30 publications

Synthesis and Charaterization of Silica-Based Aldehyde Chitosan Hybrid Material for Biodiesel Purification

Synthesis and Charaterization of Silica-Based Aldehyde Chitosan Hybrid Material for Biodiesel Purification

Light Processable Starch Hydrogels

Exploration of Chitinous Scaffold-Based Interfaces for Glucose Sensing Assemblies

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