Search Results - "Chapman, Christopher A. R"

Nanoporous Gold as a Neural Interface Coating: Effects of Topography, Surface Chemistry, and Feature Size by Chapman, Christopher A. R, Chen, Hao, Stamou, Marianna, Biener, Juergen, Biener, Monika M, Lein, Pamela J, Seker, Erkin

“…Designing neural interfaces that maintain close physical coupling of neurons to an electrode surface remains a major challenge for both implantable and in…”
Get full text

Nanoporous Gold Biointerfaces: Modifying Nanostructure to Control Neural Cell Coverage and Enhance Electrophysiological Recording Performance by Chapman, Christopher A. R., Wang, Ling, Chen, Hao, Garrison, Joshua, Lein, Pamela J., Seker, Erkin

“…Nanostructured neural interface coatings have significantly enhanced recording fidelity in both implantable and in vitro devices. As such, nanoporous gold…”
Get full text

Mechanisms of Reduced Astrocyte Surface Coverage in Cortical Neuron-Glia Co-cultures on Nanoporous Gold Surfaces by Chapman, Christopher A. R., Chen, Hao, Stamou, Marianna, Lein, Pamela J., Seker, Erkin

“…Nanoporous gold (np-Au) is a promising multifunctional material for neural electrodes. We have previously shown that np-Au nanotopography reduces astrocyte…”
Get full text

Multifunctional Neural Interfaces for Closed‐Loop Control of Neural Activity by Chapman, Christopher A. R., Goshi, Noah, Seker, Erkin

“…Microfabrication and nanotechnology have significantly expanded the technological capabilities for monitoring and modulating neural activity with the goal of…”
Get full text

Stretchable, Fully Polymeric Electrode Arrays for Peripheral Nerve Stimulation by Cuttaz, Estelle A., Chapman, Christopher A. R., Syed, Omaer, Goding, Josef A., Green, Rylie A.

“…There is a critical need to transition research level flexible polymer bioelectronics toward the clinic by demonstrating both reliability in fabrication and…”
Get full text

Mind the gap: State-of-the-art technologies and applications for EEG-based brain–computer interfaces by Portillo-Lara, Roberto, Tahirbegi, Bogachan, Chapman, Christopher A. R., Goding, Josef A., Green, Rylie A.

“…Brain–computer interfaces (BCIs) provide bidirectional communication between the brain and output devices that translate user intent into function. Among the…”
Get full text

Nanostructure Introduces Artifacts in Quantitative Immunofluorescence by Influencing Fluorophore Intensity by Chapman, Christopher A. R., Zhu, Xiangchao, Chen, Hao, Yanik, Ahmet A., Lein, Pamela J., Seker, Erkin

“…Quantitative analysis of fluorescence signals from cells reacted with fluorescently labeled probes is a widely-used method for assessing cell biology. This…”
Get full text

Flexible Networks of Patterned Conducting Polymer Nanowires for Fully Polymeric Bioelectronics by Chapman, Christopher A. R., Cuttaz, Estelle A., Tahirbegi, Bogachan, Novikov, Alexey, Petkos, Konstantinos, Koutsoftidis, Simos, Drakakis, Emmanuel M., Goding, Josef A., Green, Rylie A.

“…Patterning of conducting polymers (CPs) into fully functioning devices remains a challenge for the creation of polymeric bioelectronics. Presently, the most…”
Get full text

Substrate topography guides pore morphology evolution in nanoporous gold thin films by Chapman, Christopher A.R., Daggumati, Pallavi, Gott, Shannon C., Rao, Masaru P., Seker, Erkin

“…[Display omitted] This paper illustrates the effect of substrate topography on morphology evolution in nanoporous gold (np-Au) thin films. One micron-high…”
Get full text

Model-based geometrical optimisation and in vivo validation of a spatially selective multielectrode cuff array for vagus nerve neuromodulation by Aristovich, Kirill, Donega, Matteo, Fjordbakk, Cathrine, Tarotin, Ilya, Chapman, Christopher A.R., Viscasillas, Jaime, Stathopoulou, Thaleia-Rengina, Crawford, Abbe, Chew, Daniel, Perkins, Justin, Holder, David

“…•A method for geometric optimisation of neural cuff interfaces is presented.•Multi-electrode cuff array for selective vagus nerve stimulation was…”
Get full text

Electrode fabrication and interface optimization for imaging of evoked peripheral nervous system activity with electrical impedance tomography (EIT) by Chapman, Christopher A R, Aristovich, Kirill, Donega, Matteo, Fjordbakk, Cathrine T, Stathopoulou, Thaleia-Rengina, Viscasillas, Jaime, Avery, James, Perkins, Justin D, Holder, David

“…Non-invasive imaging techniques are undoubtedly the ideal methods for continuous monitoring of neural activity. One such method, fast neural electrical…”
Get more information

Electroactive Polymers for On‐Demand Drug Release by Alkahtani, Manal E., Elbadawi, Moe, Chapman, Christopher A. R., Green, Rylie A., Gaisford, Simon, Orlu, Mine, Basit, Abdul W.

“…Conductive materials have played a significant role in advancing society into the digital era. Such materials are able to harness the power of electricity and…”
Get full text

Polymer Bioelectronics: A Solution for Both Stimulating and Recording Electrodes by Cuttaz, Estelle A., Bailey, Zachary K., Chapman, Christopher A. R., Goding, Josef A., Green, Rylie A.

“…The advent of closed‐loop bionics has created a demand for electrode materials that are ideal for both stimulating and recording applications. The growing…”
Get full text

Optimisation of bioimpedance measurements of neuronal activity with an ex vivo preparation of Cancer pagurus peripheral nerves by Chapman, Christopher A.R., Smith, Trevor M., Kelly, Max, Avery, James, Rouanet, Theo, Aristovich, Kirill, Chew, Daniel J., Holder, David S.

“…[Display omitted] •Physiological parameters for the crab walking leg nerve model of an unmyelinated fibre were optimised resulting in improved nerve…”
Get full text

Preparation of Rat Sciatic Nerve for Ex Vivo Neurophysiology by Rapeaux, Adrien, Syed, Omaer, Cuttaz, Estelle, Chapman, Christopher A R, Green, Rylie A, Constandinou, Timothy G

“…Ex vivo preparations enable the study of many neurophysiological processes in isolation from the rest of the body while preserving local tissue structure. This…”
Get more information

Engineering on-chip nanoporous gold material libraries via precision photothermal treatment by Chapman, Christopher A R, Wang, Ling, Biener, Juergen, Seker, Erkin, Biener, Monika M, Matthews, Manyalibo J

“…Libraries of nanostructured materials on a single chip are a promising platform for high throughput and combinatorial studies of structure-property…”
Get more information

Utilizing dynamic laser speckle to probe nanoscale morphology evolution in nanoporous gold thin films by Chapman, Christopher A R, Ly, Sonny, Wang, Ling, Seker, Erkin, Matthews, Manyalibo J

“…This paper demonstrates the use of dynamic laser speckle autocorrelation spectroscopy in conjunction with the photothermal treatment of nanoporous gold (np-Au)…”
Get full text

Neural Interfaces: Nanoporous Gold Biointerfaces: Modifying Nanostructure to Control Neural Cell Coverage and Enhance Electrophysiological Recording Performance (Adv. Funct. Mater. 3/2017) by Chapman, Christopher A. R., Wang, Ling, Chen, Hao, Garrison, Joshua, Lein, Pamela J., Seker, Erkin

“…In article 1604631, E. Seker and co‐workers apply nanoporous gold as a multifunctional biointerface toward improved long‐term neuron‐electrode coupling and…”
Get full text

Controlled electroactive release from solid-state conductive elastomer electrodes by Chapman, Christopher A.R., Fernandez-Patel, Shanila, Jahan, Nusrat, Cuttaz, Estelle A., Novikov, Alexey, Goding, Josef A., Green, Rylie A.

“…This work highlights the development of a conductive elastomer (CE) based electrophoretic platform that enables the transfer of charged molecules from a…”
Get full text

Flexible Nanowire Conductive Elastomers for Applications in Fully Polymeric Bioelectronic Devices by Cuttaz, Estelle A., Chapman, Christopher A. R., Goding, Josef A., Vallejo-Giraldo, Catalina, Syed, Omaer, Green, Rylie A.

“…Soft, flexible polymer-based bioelectronics are a promising approach to minimize the chronic inflammatory reactions associated with metallic devices, impairing…”
Get full text