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Published on: October 17, 2014
Hybrid cell adhesive material for instant dielectrophoretic cell trapping and long-term cell function assessment
Darwin R Reyes1, Jennifer S Hong, John T Elliott
1Semiconductor Electronics Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, MS 8120, Gaithersburg, Maryland 20899-8120, United States. darwin.reyes@nist.gov
This study introduces a novel dielectrophoresis (DEP) system combined with a hybrid cell adhesive material (hCAM) to trap cells and promote their differentiation into neuron-like cells (NLCs). This method supports cell function and viability for advanced cell culture applications.
Area of Science:
- Biotechnology
- Cell Biology
- Microfluidics
Background:
- Dielectrophoresis (DEP) is widely used for cell separation and positioning.
- Existing DEP methods often do not support cell function, such as differentiation.
- Cell immobilization on substrates is crucial for cell culture and studying cell behavior.
Purpose of the Study:
- To develop a DEP system that enables cell manipulation while simultaneously promoting cell function, specifically differentiation.
- To demonstrate the efficacy of combining DEP with a novel hybrid cell adhesive material (hCAM) for cell entrapment and sustained cell function.
- To investigate the potential of this combined approach for applications in cell-based research and tissue engineering.
Main Methods:
- Development of a hybrid cell adhesive material (hCAM) using polyelectrolytes and fibronectin.
- Integration of hCAM coating with microfluidic devices for dielectrophoresis (DEP) manipulation.
- Culturing and inducing differentiation of P19 mouse embryonal carcinoma cells using the DEP-hCAM system under fluid flow.
- Assessing cell viability, adhesion, proliferation, and differentiation into neuron-like cells (NLCs).
Main Results:
- DEP successfully attracted and adhered P19 cells onto the hCAM surface under fluid flow.
- Cells remained viable on the hCAM after DEP manipulation for up to 8 days.
- P19 cells successfully differentiated into neuron-like cells (NLCs) while supported by the hCAM.
- The hCAM provided an instantaneous adhesive surface and supported long-term cell function.
Conclusions:
- The combined DEP and hCAM system is the first to enable cell manipulation and promote cell differentiation.
- This approach offers a versatile platform for cell entrapment, immobilization, and functional studies.
- Potential applications include cell-cell communication studies, 3D aggregate formation, and cell coculture systems.
