Photocurable platelet rich plasma bioadhesives.

Manisha Singh, Himansu Sekhar Nanda, Justin Yin Hao Lee, Jun Kit Wang, Nguan Soon Tan, Terry W J Steele

Acta biomaterialia 2020 Nov

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Closure of wounds with tissue adhesives has many advantages over sutures, but existing synthetic adhesives are toxic and have poor workability. Blood-derived adhesives display complete resorption but have adhesion too weak for reliable wound dressings. We propose a semi-synthetic design that combines the positive attributes of synthetic and blood-derived tissue adhesives. PAMAM-g-diazirine (PDz) is a rapidly gelling bioadhesive miscible in both aqueous and organic solvents. PDz blended with platelet-rich plasma (PRP) forms PDz/PRP composite, a semi-synthetic formulation that combines PDz's wet tissue adhesion with PRP's potent wound healing properties. Light-activated PDz/PRP bioadhesive composite has similar elasticity to soft tissues and behaves as an induced hemostat-an unmet clinical need for rapid wound dressings. PDz/PRP composite applied to in-vivo full-thickness wounds observed a 25% reduction in inflammation, as assessed by the host-cell response. Copyright © 2020. Published by Elsevier Ltd.

Citation

Manisha Singh, Himansu Sekhar Nanda, Justin Yin Hao Lee, Jun Kit Wang, Nguan Soon Tan, Terry W J Steele. Photocurable platelet rich plasma bioadhesives. Acta biomaterialia. 2020 Nov;117:133-141