Surface Micro- and Nanoengineering: Applications of Layer-by-Layer Technology as a Versatile Tool to Control Cellular...

Area of Science:

• Biomaterials Science
• Cellular Mechanobiology
• Nanotechnology

Background:

• Extracellular matrix (ECM) properties significantly influence cellular functions through mechanotransduction.
• ECM topography, a key physical cue, plays a crucial role in modulating cell behavior, including gene expression and differentiation.
• Understanding and replicating ECM topography is vital for developing advanced biomaterials.

Purpose of the Study:

• To provide an overview of methods for producing ECM-mimicking materials, focusing on topography.
• To highlight the layer-by-layer (LbL) assembly technique for creating topographical cues.
• To discuss the potential of engineered materials in modulating cell function and fate.

Main Methods:

• Review of bottom-up and top-down fabrication approaches for ECM topography.
• Detailed examination of the layer-by-layer (LbL) assembly technique for nanoscale material fabrication.
• Analysis of how different surface topographies influence cellular responses.

Main Results:

• Various fabrication methods can create materials mimicking ECM topography.
• LbL assembly is a versatile technique for precise nanoscale control over surface geometry.
• Surface topography significantly impacts cell adhesion, proliferation, morphology, migration, and differentiation.

Conclusions:

• Engineered micro- and nano-materials with defined topographical cues can effectively modulate cell behavior.
• LbL assembly is a powerful tool for creating biomimetic surfaces for biomedical applications.
• Precise control over ECM topography is essential for advancing regenerative medicine and cell-based therapies.