Novel In Vitro Study to Assess Microbial Barrier Properties of Polyurethane-Based Tissue Adhesives in Comparison to the Gold Standard Dermabond®

Table 1

Physicochemical properties of three different polyurethane-based tissue adhesives. Polyol is the prepolymer and Tri stands for three functional, DCA is the raw material based on a diamine, and TCA is the raw material based on a triamine. Pot life is processing time, and TFT is fully polymerization time for each adhesive.

Tissue adhesive	Lactide	Polyol	DCA/TCA	Pot life (second)	TFT (second)	Initial viscosity (mPa-s)
AM1	2%	204, tri	85/15	~75	~205	~4500
AM2	5%	206, tri	85/15	~60	~140	~7000
AM3	8%	208, tri	85/15	~60	~240	~5000