Efficient Stimulation of Neurons with AgBiS2 Nanocrystals
Author Information
Author(s): Balamur Ridvan, Oh Jae Taek, Karatum Onuralp, Wang Yongjie, Onal Asim, Kaleli Humeyra Nur, Pehlivan Cigdem, Şahin Afsun, Hasanreisoglu Murat, Konstantatos Gerasimos, Nizamoglu Sedat
Primary Institution: Koç University
Hypothesis
Can AgBiS2 nanocrystals provide a safe and effective method for stimulating neurons using near-infrared light?
Conclusion
AgBiS2 nanocrystals can stimulate neurons effectively and safely at low intensities, making them promising for retinal prosthetics.
Supporting Evidence
- The device showed a high capacitive photocurrent of 2.3 mA·cm–2 in artificial cerebrospinal fluid.
- The device maintained stability in physiological conditions without any toxicity on cells.
- Patch-clamp electrophysiology revealed neuron firing at intensity levels significantly below ocular safety limits.
Takeaway
This study shows that tiny particles called AgBiS2 can help stimulate brain cells using light without harming them.
Methodology
The study involved synthesizing AgBiS2 nanocrystals and integrating them into a bioelectronic device to test their ability to stimulate neurons under near-infrared light.
Limitations
The study primarily focuses on in vitro results, and further research is needed to confirm efficacy in vivo.
Participant Demographics
Primary hippocampal neurons from Wistar Albino rats were used.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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