Table 7.
Chemical properties of hernia mesh [92].
| Type of Material | Chemical composition of material | Chemical properties |
|||
|---|---|---|---|---|---|
| Material characterization | Safety items | ||||
| Synthetic polymer materials | Non-absorbable materials | PP, PET, PVDF, PTFE, etc. | Infrared identification [114] | Potential of hydrogen (PH) | Residues of heavy metals, manufacturing reagents, harmful small molecular and macromolecular substances in final products, such as ethylene oxide (when applicable) |
| Evaporation residue | |||||
| Reducing substance | |||||
| Ultraviolet Absorbance (UVA) | |||||
| Absorbable materials | PGA,PLA,PCL,PDO, etc. | Infrared or nuclear magnetic resonance identification [114] | Monomer residue | ||
| Molecular weight and molecular weight distribution | Catalyst residue (Tin) | ||||
| Monomer unit ratio (if applicable) | Organic solvents residue | ||||
| Optical rotation (if applicable) | Water residue | ||||
| Natural materials | Non-absorbable materials | Bovine pericardium (B-PC), Porcine pericardium (P-PC) | Cross-linking reagents (Glutaraldehyde, epoxide) | ||
| DNA, Antigen and other immunogenic substances | |||||
| Absorbable materials | Absorbable biological membrane materials such as Porcine small intestine submucosa | ||||
| Purified collagen | Identification | PH | |||
| Collagen purity | Residue on ignition | ||||
| Hydroxyproline content | Impurity protein analysis | ||||