Detail publikace

Light-Controlled Electric Stimulation with Organic Electrolytic Photocapacitors Achieves Complex Neuronal Network Activation: Semi-Chronic Study in Cortical Cell Culture and Rat Model

NOWAKOWSKA, M. JAKEŠOVÁ, M. SCHMIDT, T. OPANČAR, A. REIMER, R. POLZ, M. PATZ, S. FUCHS, J. ZIESEL, D. SCHERUEBEL, S. KORNMUELLER, K. RIENMÜLLER, T. DEREK, V. GLOWACKI, E. SCHINDL, R. ÜÇAL, M.

Originální název

Light-Controlled Electric Stimulation with Organic Electrolytic Photocapacitors Achieves Complex Neuronal Network Activation: Semi-Chronic Study in Cortical Cell Culture and Rat Model

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Neurostimulation employing photoactive organic semiconductors offers an appealing alternative to conventional techniques, enabling targeted action and wireless control through light. In this study, organic electrolytic photocapacitors (OEPC) are employed to investigate the effects of light-controlled electric stimulation on neuronal networks in vitro and in vivo. The interactions between the devices and biological systems are characterized. Stimulation of primary rat cortical neurons results in an elevated expression of c-Fos within a mature neuronal network. OEPC implantation for three weeks and subsequent stimulation of the somatosensory cortex leads to an increase of c-Fos in neurons at the stimulation site and in connected brain regions (entorhinal cortex, hippocampus), both in the ipsi- and contralateral hemispheres. Reactivity of glial and immune cells after semi-chronic implantation of OEPC in the rat brain is comparable to that of surgical controls, indicating minimal foreign body response. Device functionality is further substantiated through retained charging dynamics following explantation. OEPC-based, light-controlled electric stimulation has a significant impact on neural responsiveness. The absence of detrimental effects on both the brain and device encourages further use of OEPC as cortical implants. These findings highlight its potential as a novel mode of neurostimulation and instigate further exploration into applications in fundamental neuroscience. Wireless cortical stimulation is an attractive alternative to standard neurostimulation methods. Organic photoactive semiconductors can transduce light into electric signal, even in ultrathin layers, which can be used to stimulate neurons. In this study, light-based stimulation activated complex neuronal networks in vitro and in vivo, including deep brain regions. The devices proved safe and stable over three weeks of implantation. image

Klíčová slova

bioelectronics; cortical stimulation; c-Fos; excitability; immunohistochemistry; organic semiconductors; wireless stimulation

Autoři

NOWAKOWSKA, M.; JAKEŠOVÁ, M.; SCHMIDT, T.; OPANČAR, A.; REIMER, R.; POLZ, M.; PATZ, S.; FUCHS, J.; ZIESEL, D.; SCHERUEBEL, S.; KORNMUELLER, K.; RIENMÜLLER, T.; DEREK, V.; GLOWACKI, E.; SCHINDL, R.; ÜÇAL, M.

Vydáno

13. 8. 2024

Nakladatel

WILEY

Místo

HOBOKEN

ISSN

2192-2640

Periodikum

Advanced Healthcare Materials

Ročník

2024

Číslo

2401303

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

19

URL

https://onlinelibrary.wiley.com/doi/10.1002/adhm.202401303

BibTex

@article{BUT189744,
  author="Marta {Nowakowska} and Marie {Jakešová} and Tony {Schmidt} and Aleksandar {Opančar} and Robert {Reimer} and Mathias {Polz} and Silke {Patz} and Julia {Fuchs} and Daniel {Ziesel} and Susanne {Scheruebel} and Karin {Kornmueller} and Theresa {Rienmüller} and Vedran {Derek} and Eric Daniel {Glowacki} and Rainer {Schindl} and Muammer {Üçal}",
  title="Light-Controlled Electric Stimulation with Organic Electrolytic Photocapacitors Achieves Complex Neuronal Network Activation: Semi-Chronic Study in Cortical Cell Culture and Rat Model",
  journal="Advanced Healthcare Materials",
  year="2024",
  volume="2024",
  number="2401303",
  pages="19",
  doi="10.1002/adhm.202401303",
  issn="2192-2640",
  url="https://onlinelibrary.wiley.com/doi/10.1002/adhm.202401303"
}