TABLE 4.
Different strategies for developing cell adhesion surfaces.
| Techniques | Production methods | Advantages | Disadvantages |
|---|---|---|---|
| Self- assembled monolayers | Adsorption of an active chemical onto a solid substrate in a diluted solution results in the formation of ordered molecular structures | Greater hierarchy and orientation | Unique and especially treated solid surface is required |
| Polymer brush | The macromolecular structure is composed of polymer chains including one end securely inserted on a curved surface or plane | Significantly enhanced the substrate’s performance, displaying varied characteristics when ambient circumstances changed | Process complexity and the potential for material loss |
| Layer-by-layer assembly | Intermittent rinse steps after each successive deposition of interacting species on a substrate | Controlled layered structures, economical, fast, and easy methods | Rely upon centrifugation, require challenging scaling, and poor throughput assembling |
| Photolithography | Using a variety of energy resources to imprint patterns on a substrate surface, including electron beam, laser, as well as ultraviolet light | High accuracy | Sophisticated operation, expensive machinery |
| Electrospun fibers | Static electricity attracts the polymeric mixture or melts to the material membrane under high-voltage bias. | High level of orientation control precision and porous fiber structure | Issue of high pressure, susceptible to mechanical deformation |
| Spin coating | Deposition, rotation, rotation, and evaporation are the fundamental steps | Low pollution, high-performance costs, energy efficiency, and no coupling of process variables | Low rate of material usage, ongoing waste |
| 3D bio-printing | The 3D layered polymeric structure is built from the ground up and printed with solvent biological materials, whereas the 2D patterned polymer layer is surface customized using computer-aided imaging methods. | High speed and accuracy | Poor cell survival rate, shear force |