Low-cost calcium fluorometry for long-term nanoparticle studies in living cells

Area of Science:

• Neuroscience
• Biophysics
• Materials Science

Background:

• Calcium fluorometry is vital for understanding cell homeostasis and neuronal communication.
• Investigating neuronal calcium signaling in response to nanomaterials is crucial for therapeutic applications.
• Existing imaging methods for neuronal activity are often costly or lack long-term capabilities.

Purpose of the Study:

• To develop an affordable, portable system for long-term, high-speed calcium fluorometry in neurons.
• To investigate temperature-dependent calcium signaling in kidney cells and neurons.
• To analyze neuronal responses to nanomaterials using advanced imaging and network analysis.

Main Methods:

• Construction of a low-cost, portable imaging system for calcium fluorometry.
• Long-term imaging of calcium signaling in kidney cells and primary cortical neurons.
• Fast-scale monitoring of neuronal cultures exposed to nanomaterials, coupled with graph network analysis.

Main Results:

• The developed system enables long-term and fast-scale calcium fluorometry.
• Temperature-dependent changes in long-term calcium signaling were observed in kidney cells and neurons.
• Graph network analysis revealed temperature-dependent calcium dynamics in neurons exposed to chitosan-coated nanoparticles.

Conclusions:

• The low-cost imaging system provides a valuable tool for studying neuronal activity and nanomaterial interactions.
• Findings offer new insights into the impact of temperature and nanomaterials on neuronal calcium signaling.
• This approach enhances the understanding of nanomaterial interactions in biological systems.