Interfacing Inorganic Nanowire Arrays and Living Cells for Cellular Function Analysis

Area of Science:

• Materials Science
• Biotechnology
• Nanotechnology

Background:

• Inorganic nanowires are advanced functional materials with established roles in IT and energy.
• Their application in biological and biomedical research is emerging, particularly for cell analysis.
• While nanowire sensors exist for biomolecules, direct interfacing with living cells for function analysis is recent.

Purpose of the Study:

• To review recent advances in using inorganic nanowire arrays for analyzing cellular functions.
• To highlight the potential of nanowire technology in disease diagnosis and monitoring.
• To explore both penetrating and non-penetrating nanowire array applications.

Main Methods:

• Utilizing cell-penetrating nanowires for intracellular delivery, stimulation, and signal recording.
• Employing non-penetrating, high-density nanowire arrays for cell-substrate interactions.
• Leveraging nanowire arrays for capturing rare cells (e.g., circulating tumor cells) and probing cellular mechanics.

Main Results:

• Cell-penetrating nanowires facilitate long-term intracellular access and signal monitoring.
• Non-penetrating nanowire arrays enable efficient capture of rare cells from complex samples.
• Nanowire arrays serve as platforms for studying cell traction force and neuronal guidance.

Conclusions:

• Inorganic nanowire arrays represent a promising frontier in biomedical research.
• These technologies enable rapid cellular function analysis with potential for clinical applications.
• Further exploration of nanowire-cell interactions will advance diagnostics and disease monitoring.