Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Beomseo Koo"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Shape-morphable electrode arrays can form 3D surfaces to conform to complex neural anatomy and provide consistent positioning needed for next-generation neural interfaces. Retinal prostheses need a curved interface to match the spherical eye
Externí odkaz:
https://doaj.org/article/2eff113819f147228c12632fa9c26891
Autor:
Quentin A. Whitsitt, Beomseo Koo, Mahmut Emin Celik, Blake M. Evans, James D. Weiland, Erin K. Purcell
Publikováno v:
Frontiers in Neuroscience, Vol 16 (2022)
Current standards for safe delivery of electrical stimulation to the central nervous system are based on foundational studies which examined post-mortem tissue for histological signs of damage. This set of observations and the subsequently proposed l
Externí odkaz:
https://doaj.org/article/a641a05498214533bccbf291aeca1fe6
Autor:
Elena della Valle, Beomseo Koo, Paras R. Patel, Quentin Whitsitt, Erin K. Purcell, Cynthia A. Chestek, James D. Weiland
Publikováno v:
Frontiers in Nanotechnology, Vol 3 (2021)
Ultrasmall microelectrode arrays have the potential to improve the spatial resolution of microstimulation. Carbon fiber (CF) microelectrodes with cross-sections of less than 8 μm have been demonstrated to penetrate cortical tissue and evoke minimal
Externí odkaz:
https://doaj.org/article/b30964da9f2e4509b6268f43b0ccc34e
Autor:
Beomseo Koo, James Weiland
Publikováno v:
2023 11th International IEEE/EMBS Conference on Neural Engineering (NER).
Autor:
Beomseo, Koo, James D, Weiland
Publikováno v:
Translational Vision Science & Technology. 11:19
The brain is known to change functionally and structurally in response to blindness, but less is known about the effects of restoration of cortical input on brain function. Here, we present a preliminary study to observe alterations in visual and ele
Autor:
Artin Petrossians, Curtis D. Lee, Beomseo Koo, J Wong, James D. Weiland, Eugene Yoon, Ellis Meng, Sahar Elyahoodayan
Publikováno v:
Journal of Micromechanics and Microengineering. 30:124001
The design, fabrication, and testing of a microelectrode array for chronic in vivo stimulation of the rat retina is presented. Epiretinal positioning of the array introduced design challenges associated with the surgical implantation approach into th
Autor:
Beomseo Koo, James D. Weiland
Publikováno v:
EMBC
Impedance measurement using Electrochemical Impedance Spectroscopy is a widely utilized technique in neural electrodes. Research and clinical devices that incorporate stimulating and recording microelectrodes routinely characterize the material’s i
Autor:
Robert D. Graham, Matthew Bird, Beomseo Koo, Siddhartha Sikdar, Parag V. Chitnis, Mahesh B. Shenai, April Aralar
Publikováno v:
Cureus
Objective Ventricular shunts are a mainstay of hydrocephalus treatment, but the detection of its clinical failure often relies on circumstantial evidence. A direct, non-interventional method for reliably evaluating cerebrospinal fluid (CSF) function
Autor:
Beomseo Koo, Parag V. Chitnis, Robert D. Graham, Siddhartha Sikdar, Mahesh B. Shenai, Matthew Bird, April Aralar
Publikováno v:
EMBC
Hydrocephalus, where cerebrospinal fluid (CSF) production rate is greater than reabsorption rate, leads to impaired neurological function if left untreated. Ventriculoperitoneal shunts (VPS) are implanted in the brain ventricles to route CSF. VPS sys
In vivo Characterization of Amorphous Silicon Carbide As a Biomaterial for Chronic Neural Interfaces
Autor:
Daniel G. McHail, Beomseo Koo, Stuart F. Cogan, Gretchen L. Knaack, Joseph J. Pancrazio, Theodore C. Dumas, German Borda, Nathalia Peixoto
Publikováno v:
Frontiers in Neuroscience
Implantable microelectrode arrays (MEAs) offer clinical promise for prosthetic devices by enabling restoration of communication and control of artificial limbs. While proof-of-concept recordings from MEAs have been promising, work in animal models de