Table 1.

Adhesion testing of different compositions of the reactive isocyanate-terminated hyper-branched adhesives using a bucket-handle meniscus tear model

Glue	Maximum adhesive force [N]	Displacement at maximum force [mm]	Energy required to open glued tear [mJ]	Energy required to detach adhesive [mJ]
Hyper-branched adhesive	3.7 ± 0.97	2.4 ± 0.96	11.0 ± 5.2	6.1 ± 3.5
Hyper-branched adhesive + spermidine 5:1	3.7 ± 1.5	1.6 ± 0.4	5.5 ± 3.7	3.2 ± 2.1
Hyper-branched adhesive + DABCO	3.2 ± 0.47	2.8 ± 0.6	10.3 ± 2.1	4.8 ± 1.1
Fibrin glue	0.3 ± 0.04*	6.0*	1.6 ± 0.1**	0

Data are presented as mean ± standard deviation

* The value is the force at the maximum displacement of 6 mm, a maximum force was not reached

** These values are the areas under the curve for displacement from 0 to the maximum displacement of 6 mm