Chitosan Surgical Adhesive
Chitosan Surgical Adhesive - Related Videos
06:32
A Chitosan Based, Laser Activated Thin Film Surgical Adhesive, 'SurgiLux': Preparation and Demonstration
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Cited by 32 •
2012
The fabrication of a novel, flexible thin film surgical adhesive from FDA approved ingredients, chitosan and indocyanine green is described. Bonding of this adhesive to collagenous tissue through a simple activation process with a low-powered infra-red laser is demonstrated.
10:06
Fabrication and Application of Rose Bengal-chitosan Films in Laser Tissue Repair
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Cited by 23 •
2012
Sutures are usually needed to repair tissue during surgical procedures. However, their application can be problematic as they are invasive and may damage tissue. The fabrication and application methods of a novel tissue adhesive are here reported. This adhesive film is laser-activated and does not require the use of sutures.
09:39
Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres
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Cited by 6 •
2012
A major hurdle in current stem cell therapies is determining the most effective method to deliver these cells to host tissues. Here, we describe a chitosan-based delivery method that is efficient and simple in approach, while allowing adipose-derived stem cells to maintain their multipotency.
11:05
Capillary Electrophoresis to Monitor Peptide Grafting onto Chitosan Films in Real Time
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Cited by 1 •
2016
Free solution capillary electrophoresis is a fast, cheap and robust analytical method that enables the quantitative monitoring of chemical reactions in real time. Its utility for rapid, convenient and precise analysis is demonstrated here through analysis of covalent peptide grafting onto chitosan films for improved cell adhesion.
01:14
Adhesion
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2019
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules. Capillary action is a result of water’s adhesive tendencies. When a narrow glass...
FAQs
Electrostatic attraction is a central mechanism: positively charged chitosan chains interact with negatively charged cell surfaces, proteins, and extracellular matrix components. These interactions help bring the adhesive into close contact with tissue and support bonding at the interface. In bioengineering, this charge-based behavior provides a foundation for designing adhesives that function directly on biological surfaces.
Hydrogen bonding strengthens interactions between the adhesive and tissue components, while swelling in an aqueous environment helps the material maintain contact with wet surfaces. Together, these effects support adhesion under conditions where dry bonding approaches may be less suitable. The swollen material can also contribute to a protective barrier over the treated area.
Chitosan’s chemical modifiability allows researchers to tailor important properties rather than relying on one fixed formulation. Adjustments can target adhesion strength, degradation behavior, and biological compatibility for a particular application. This flexibility is important in bioengineering because an adhesive intended for wound healing may require different performance characteristics from one designed for tissue sealing or localized delivery.
The material can be used to bond or seal biological tissues and to support wound closure. Its tissue interactions, aqueous swelling, and barrier-forming behavior contribute to maintaining contact with the wound area. In research and clinical-development contexts, these functions make it relevant when a bioengineered material must combine tissue attachment with biodegradability.
Chitosan adhesive systems are investigated for hemostasis and wound healing because they can adhere to tissue, form a protective barrier, and remain biodegradable. These characteristics connect the material’s molecular interactions with broader repair goals. The research focus is not limited to closure itself; it also considers how the adhesive can support treatment of the wound environment over time.
Localized drug delivery is an application made possible by the material’s bioengineering flexibility and tissue-contacting behavior. Researchers investigate whether the adhesive can support delivery near a targeted biological site while also serving as a tissue-bonding or sealing material. Its chemical modifiability is relevant because formulation properties can be tailored alongside adhesion, degradation, and biological compatibility requirements.