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Additive manufacturing or 3D printing has spearheaded a revolution in the biomedical sector allowing the rapid prototyping of medical devices. The recent advancements in bioprinting technology are enabling the development of potential new therapeutic options with respect to tissue engineering and regenerative medicines. Bacterial polysaccharides have been shown to be a central component of the inks used in a variety of bioprinting processes influencing their key features such as the mechanical and thermal properties, printability, biocompatibility, and biodegradability. However, the implantation of any foreign structure in the body comes with an increased risk of bacterial infection and immunogenicity. In recent years, this risk is being potentiated by the rise in nosocomial multidrug-resistant bacterial infections. Inks used in bioprinting are being augmented with antimicrobials to mitigate this risk. The applications of bacterial polysaccharide-based bioinks have the potential to act as a key battlefront in the war against antibiotic resistance. This paper reviews the range of bacterial polysaccharides used in bioprinting and discusses the potential of various bioactive polysaccharides to be integrated into these inks.
This article was published in the following journal.
Name: Biotechnology advances
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Polysaccharides found in bacteria and especially bacterial capsules. (Dorland, 28th ed)
An envelope of loose gel surrounding a bacterial cell which is associated with the virulence of pathogenic bacteria. Some capsules have a well-defined border, whereas others form a slime layer that trails off into the medium. Most capsules consist of relatively simple polysaccharides but there are some bacteria whose capsules are made of polypeptides.
Bacterial polysaccharides that are rich in phosphodiester linkages. They are the major components of the cell walls and membranes of many bacteria.
Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine.
A material transfer technique used for assembling biological material or cells into a prescribed organization to create functional structures such as MICROCHIP ANALYTICAL DEVICES, cell microarrays, or three dimensional anatomical structures.
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MRSA (methicillin-resistant Staphylococcus aureus)
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