| GS | Gelatin sponge |
| vhGS | Vacuum heated gelatin sponge |
| EGCG | Epigallocatechin gallate |
| EGCG-GS | Epigallocatechin gallate-modified gelatin sponge |
| vhEGCG-GS | Vacuum heated EGCG-GS |
| GS | Gelatin sponge |
| vhGS | Vacuum heated gelatin sponge |
| EGCG | Epigallocatechin gallate |
| EGCG-GS | Epigallocatechin gallate-modified gelatin sponge |
| vhEGCG-GS | Vacuum heated EGCG-GS |