Tissue-susceptibility matched carbon nanotube electrodes for magnetic resonance imaging

Journal of Magnetic Resonance
Guohai ChenRichard R Vanfleet

Abstract

Test disk electrodes were fabricated from carbon nanotubes (CNT) using the Carbon Nanotube Templated Microfabrication (CNT-M) technique. The CNT-M process uses patterned growth of carbon nanotube forests from surfaces to form complex patterns, enabling electrode sizing and shaping. The additional carbon infiltration process stabilizes these structures for further processing and handling. At a macroscopic scale, the electrochemical, electrical and magnetic properties, and magnetic resonance imaging (MRI) characteristics of the disk electrodes were investigated; their microstructure was also assessed. CNT disk electrodes showed electrical resistivity around 1 Ω·cm, charge storage capacity between 3.4 and 38.4 mC/cm2, low electrochemical impedance and magnetic susceptibility of -5.9 to -8.1 ppm, closely matched to that of tissue (∼-9 ppm). Phantom MR imaging experiments showed almost no distortion caused by these electrodes compared with Cu and Pt-Ir reference electrodes, indicating the potential for significant improvement in accurate tip visualization.

References

Jul 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·P Jezzard, R S Balaban
Jun 1, 1994·Physical Review. B, Condensed Matter·J HeremansD T Morelli
Apr 4, 2007·Physics in Medicine and Biology·Francisco M Martinez-SantiestebanDavid J Anderson
Jul 31, 2008·Zentralblatt für Neurochirurgie·M O PinskerM Mehdorn
Nov 5, 2008·Neurosurgery·Tina-Marie EllisMichael S Okun
Aug 24, 2011·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Changqing JiangHongwei Hao
Mar 3, 2012·World Neurosurgery·Patric BlomstedtMarwan I Hariz
Feb 23, 2013·Journal of Neural Engineering·C Q JiangL M Li
Oct 3, 2014·ACS Applied Materials & Interfaces·Kelly L StanoPhilip D Bradford
May 1, 2015·Neurologia Medico-chirurgica·Kenji SugiyamaHiroki Namba
Jul 14, 2016·IEEE Reviews in Biomedical Engineering·Aparna Wagle Shukla, Michael S Okun

❮ Previous
Next ❯

Citations

Aug 8, 2020·Journal of Neural Engineering·Nicholas V ApolloFlavia Vitale
Aug 18, 2021·Journal of Neural Engineering·Mamta DeviSwati Sharma
Nov 3, 2021·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Stephanie R MorcoAnton E Bowden

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
Changqing JiangHongwei Hao
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Artin PetrossiansFlorian Mansfeld
Materials Science & Engineering. C, Materials for Biological Applications
Clément HébertFranck Omnès
Journal of Nanoscience and Nanotechnology
Yeseul KimHyoung-Joon Jin
© 2022 Meta ULC. All rights reserved