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Cytocompatibility of Titanium Microsphere-Based Surfaces.

Xiaoxiao Huang1, Lijun Shan2, Kui Cheng1

  • 1School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.

ACS Biomaterials Science & Engineering
|January 15, 2021
PubMed
Summary
This summary is machine-generated.

Biomaterial surface topography influences cell behavior. Hierarchical micro-nanostructured titanium surfaces with optimized density enhance cell responses by modulating protein adsorption and cell aggregation.

Keywords:
cell aggregatescytocompatibilitymicronano structured surfaceprotein adsorption∼37 μm titanium microspheres

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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Surface Engineering

Background:

  • Micro/nanoscale surface topography is crucial for biomaterial-cell interactions.
  • Understanding the mechanisms of cell response to micro-nanostructured surfaces remains challenging.

Purpose of the Study:

  • To investigate how hierarchical micro-nanostructured titanium surfaces affect preosteoblastic cell responses.
  • To determine the role of topography and distribution density on cell adhesion, proliferation, and differentiation.

Main Methods:

  • Fabrication of titanium microsphere surfaces with varying hierarchical micro-nanostructures using 3D printing and hydrothermal treatment.
  • Evaluation of preosteoblastic cell responses (adhesion, proliferation, differentiation) on different surface topographies.

Main Results:

  • Microstructured surfaces with medium-density titanium microspheres enhanced cell responses, potentially due to cell aggregation.
  • Hierarchical micro-nanostructured surfaces improved cell-surface interactions via enhanced protein adsorption, reducing cell aggregation and responses.

Conclusions:

  • Both topography and distribution density critically influence biomaterial cytocompatibility.
  • Hierarchical micro-nanostructures offer a strategy to control cell-material interactions by modulating protein adsorption.
  • Findings provide insights for designing advanced biomaterials with tailored cell responses.