Fibre-reinforced biocompatible hydrogel to replace single-use plastic tubing in the clinical setting

Autor: Erika M. J. Siren, Masoud Daneshi, Anthony Wachs, R. Melnick, T. Treskatis, Jordan MacKenzie, D.M. Martinez, Jayachandran N. Kizhakkedathu
Rok vydání: 2022
Předmět:
Zdroj: Chemical Engineering Journal. 428:131786
ISSN: 1385-8947
DOI: 10.1016/j.cej.2021.131786
Popis: In this work we examine a manufacturing process to produce hydrogel tubing for extracorporeal applications. In the first study we examine the methodology to scale-up extrusion printers to inertial flow conditions. We advance bounds to maintain hydrodynamic stability through direct numerical simulation which are verified experimentally. Using these bounds, we develop three different 3D-extrusion printers operating with speeds of up to 12 cm/s. In the second study, we explore the use of these printers by producing biodegradable hydrogel tubing. When reinforced with 1% cellulose fibre, these tubes are sufficiently tough to circulate human blood for 200 h with marginal spallation and display a 6-fold decrease in platelet adhesion. This is a promising first step to reduce cardiovascular complications and to replace single-use plastic tubing in the hospital setting.
Databáze: OpenAIRE