Chitosan-Based Gels and Hydrogels

Yao, Kang; Yao, Fang; Li, Jun Jie; Yu, Yin; Jarry, Claire; Shive, Matthew S.

doi:10.1201/9781420043730.ch10

Cited by 5 publications

(6 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The process of electrode coating was as follows: First, 10 μL of –COOH‐MWCNTs/CS dispersion was placed on the electrode, and left to dry for 1 H. After solvent evaporation, 10 μL of CS solution was dropped on the electrode surface and solvent again evaporated at room temperature in air for approximately 1 H. Then, 10 μL of 0.1 M phosphate buffer saline (PBS, pH 7.0) solution was added on the surface and left to dry for 40 Min, and this step was then repeated; the purpose being to deprotonate the amino groups of CS by changing the pH at the electrode surface. When pH values are in the vicinity of the p Ka of CS ( p Ka = 6.5), amino groups of CS are deprotonated . Finally, EDC/NHS coupling was used to covalently cross‐link COOH‐MWCNT to the CS polymer and formed on the surface: 10 μL EDC (0.5%, m/v) and NHS (0.5%, m/v) in the same buffer solution was dropped on the surface and left to dry for 2 H. …”

Section: Methodsmentioning

confidence: 99%

“…Then, 10 μL of 0.1 M phosphate buffer saline (PBS, pH 7.0) solution was added on the surface and left to dry for 40 Min, and this step was then repeated; the purpose being to deprotonate the amino groups of CS by changing the pH at the electrode surface. When pH values are in the vicinity of the p Ka of CS ( p Ka = 6.5), amino groups of CS are deprotonated .…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Apoferritin‐templated biosynthesis of manganese nanoparticles and investigation of direct electron transfer of MnNPs–HsAFr at modified glassy carbon electrode

Rafipour

Kashanian

Hashemi

et al. 2016

Biotech and App Biochem

View full text Add to dashboard Cite

Manganese nanoparticles (MnNPs) were created within horse spleen apoferritin (HsAFr) cavity nanotemplates. Transmission electron microscopy revealed the particle size to be 6 nm. Intrinsic fluorescence data showed that the mineralization acted as a quencher of the HsAFr fluorescence, and extrinsic fluorescence data revealed that the hydrophobic binding site at the surface of HsAFr was not changed. Finally, the MnNP-HsAFr was immobilized onto multiwalled carbon nanotubes entrapped into chitosan (CS) matrices by through sequential 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide-N-hydroxysuccinimide and glutaraldehyde coupling. The MnNPs-HsAFr immobilized on CNT-CS/GC electrode was characterized by cyclic voltammetry. This charge transfer coefficient (α) and the exchange current (i ) of MnNPs-HsAFr immobilized on modified electrode in 0.1 M phosphate solution (pH 7.5) were found to be 0.57 and 0.48 μA, respectively.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Apoferritin‐templated biosynthesis of manganese nanoparticles and investigation of direct electron transfer of MnNPs–HsAFr at modified glassy carbon electrode

Rafipour

Kashanian

Hashemi

et al. 2016

Biotech and App Biochem

View full text Add to dashboard Cite

show abstract

“…In the medical field, pure chitosan films have been employed for wound dressings, drug delivery systems, and medical device coatings due to their antimicrobial, biocompatible, and biodegradable properties [24].…”

Section: Use In Medicinementioning

confidence: 99%

“…At the same time, for alkaline deacetylation, a degree of deacetylation of 10-20% is considered a great success. In addition, alkaline deacetylation leads to partial depolymerization of the polysaccharide [24]. Once chitosan is synthesized, it can be further processed to form films through various techniques (Figure 2):…”

mentioning

confidence: 99%

Chitosan-Based Antibacterial Films for Biomedical and Food Applications

Khubiev

Egorov

Kirichuk

et al. 2023

IJMS

View full text Add to dashboard Cite

Antibacterial chitosan films, versatile and eco-friendly materials, have garnered significant attention in both the food industry and medicine due to their unique properties, including biodegradability, biocompatibility, and antimicrobial activity. This review delves into the various types of chitosan films and their distinct applications. The categories of films discussed span from pure chitosan films to those enhanced with additives such as metal nanoparticles, metal oxide nanoparticles, graphene, fullerene and its derivatives, and plant extracts. Each type of film is examined in terms of its synthesis methods and unique properties, establishing a clear understanding of its potential utility. In the food industry, these films have shown promise in extending shelf life and maintaining food quality. In the medical field, they have been utilized for wound dressings, drug delivery systems, and as antibacterial coatings for medical devices. The review further suggests that the incorporation of different additives can significantly enhance the antibacterial properties of chitosan films. While the potential of antibacterial chitosan films is vast, the review underscores the need for future research focused on optimizing synthesis methods, understanding structure-property relationships, and rigorous evaluation of safety, biocompatibility, and long-term stability in real-world applications.

show abstract

“…Chitosan is a modified natural cationic polymer composed of β-(1→4)-linked Dglucosamine residues, obtained by partial N-deacetylation of chitin (Figure 1). This polyaminosaccharide polymer has polycationic characteristics, due to the presence of numerous amino groupings (ALVES; MANO, 2008;ANITHA et al, 2011b), and possesses excellent chemical and biological properties, making it very attractive for applications in many areas such as, biology, chemistry, pharmacy, medicine, agriculture, food, environmental (YAO et al, 2011;KASHYAP;HEIDEN, 2015a).…”

Section: Introductionmentioning

confidence: 99%

Chitosan-beta-cyclodextrin nanoparticles for sustained release of carvacrol and linalool aiming agriculture applications

Campos¹

View full text Add to dashboard Cite

É graça divina começar bem. Graça maior é persistir na caminhada certa. Mas a graça das graças é não desistir nunca" (Dom Hélder Câmara) Dedico esta Tese aos meus pais, Uriel e Eunice e ao meu orientador Leonardo AGRADECIMENTOS À Fundação de Amparo à Pesquisa do Estado de São Paulo -FAPESP (Processo n° 2014/20273-4) pela concessão da bolsa de doutorado. As opiniões, hipóteses e conclusões ou recomendações expressas neste material são de responsabilidade do autor(es) e não necessariamente refletem a visão da FAPESP. À FAPESP, CNPq, CAPES e FUNDUNESP pelo apoio financeiro concedido para a realização deste trabalho.

show abstract

Chitosan-Based Gels and Hydrogels

Cited by 5 publications

References 52 publications

Apoferritin‐templated biosynthesis of manganese nanoparticles and investigation of direct electron transfer of MnNPs–HsAFr at modified glassy carbon electrode

Apoferritin‐templated biosynthesis of manganese nanoparticles and investigation of direct electron transfer of MnNPs–HsAFr at modified glassy carbon electrode

Chitosan-Based Antibacterial Films for Biomedical and Food Applications

Chitosan-beta-cyclodextrin nanoparticles for sustained release of carvacrol and linalool aiming agriculture applications

Contact Info

Product

Resources

About