Cited by 30Electrochemical sensors and biosensorsAnalytical Chemistry and SensorsElectrochemical Analysis and Applications

Improved in Vivo Performance of Amperometric Oxygen ( P O2) Sensing Catheters via Electrochemical Nitric Oxide Generation/Release

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Ren, Hang, Coughlin, Megan A., Major, Terry C., Aiello, Salvatore, Rojas Pena, Alvaro, Bartlett, Robert H., Meyerhoff, Mark E.·2015·Analytical Chemistry

Abstract

A novel electrochemically controlled release method for nitric oxide (NO) (based on electrochemical reduction of nitrite ions) is combined with an amperometric oxygen sensor within a dual lumen catheter configuration for the continuous in vivo sensing of the partial pressure of oxygen (PO2) in blood. The on-demand electrochemical NO generation/release method is shown to be fully compatible with amperometric PO2 sensing. The performance of the sensors is evaluated in rabbit veins and pig arteries for 7 and 21 h, respectively. Overall, the NO releasing sensors measure both venous and arterial PO2 values more accurately with an average deviation of −2 ± 11% and good correlation (R2 = 0.97) with in vitro blood measurements, whereas the corresponding control sensors without NO release show an average deviation of −31 ± 28% and poor correlation (R2 = 0.43) at time points >4 h after implantation in veins and >6 h in arteries. The NO releasing sensors induce less thrombus formation on the catheter surface in both veins and arteries (p < 0.05). This electrochemical NO generation/release method could offer a new and attractive means to improve the biocompatibility and performance of implantable chemical sensors.

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Crossref · 10.1021/acs.analchem.5b01590

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  • Applying different potentials on electrodes can modulate the NO generation rate, offering a steady, controllable, physiologically relevant NO flux compared with chemically based NO generation.

    “Applying different potentials on the electrodes can modulate the rate of NO generation, which offers a steady, controllable, and physiologically relevant flux of NO, compared to the chemically-based NO generation.”
  • Sensors with electrochemical NO generation provided very accurate oxygen responses in rabbit veins and pig arteries.

    “In both cases, the sensors with electrochemical NO generation provided very accurate oxygen responses, while control sensors deviated from the real values by 30–40 % after 5 h of implantation because the local oxygen was consumed by the activated platelets and other cells trapped in the thrombus formed on the surface of the control sensors.”
  • This electrochemical approach has been used to develop multi-lumen catheters with one lumen dedicated to generating NO electrochemically to reduce thrombus and microbial biofilm formation on catheter surfaces.

    “This approach has been utilized to develop a new generation of multi-lumen catheters in which one lumen is dedicated to generating NO electrochemically to reduce thrombus and microbial biofilm formation on the surface of the catheters.147,258”
  • The control sensor deviation was because local oxygen was consumed by activated platelets and other cells trapped in thrombus on the control sensor surfaces.

    “In both cases, the sensors with electrochemical NO generation provided very accurate oxygen responses, while control sensors deviated from the real values by 30–40 % after 5 h of implantation because the local oxygen was consumed by the activated platelets and other cells trapped in the thrombus formed on the surface of the control sensors.”
  • Control sensors deviated from real oxygen values by 30-40% after 5 h of implantation.

    “In both cases, the sensors with electrochemical NO generation provided very accurate oxygen responses, while control sensors deviated from the real values by 30–40 % after 5 h of implantation because the local oxygen was consumed by the activated platelets and other cells trapped in the thrombus formed on the surface of the control sensors.”

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Research works printed but not linked: 1

  1. Frost M. C.; Wolf A. K.; Meyerhoff M. E. In Detection Challenges in Clinical Diagnostics; The Royal Society of Chemistry: Cambridge, UK, 2013; pp 129– 155.

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Authors
Ren, H., Coughlin, M. A., Major, T. C., Aiello, S., Rojas Pena, A., Bartlett, R. H., & Meyerhoff, M. E.
Affiliations
  • University of Michigan (US)
  • University of Michigan , , , ,
Corresponding author
Meyerhoff, Mark E.
Venue
Analytical Chemistry
Published
2015-07-23
Volume
87
Issue
16
Pages
8067-8072
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2419451964
Cited by
30
References
29
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 2 · 2018: 4 · 2017: 4 · 2016: 7
FWCI
2.41
Type
journal article
Language
en
Open access
Locations
  • Analytical Chemistry (publishedVersion, other-oa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (HL-119403-01)
  • National Institute of Biomedical Imaging and Bioengineering (EB-000783)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
  • Physical Sciences › Chemical Engineering › Bioengineering › Analytical Chemistry and Sensors
  • Physical Sciences › Chemistry › Electrochemistry › Electrochemical Analysis and Applications
Keywords
nitric oxide release, amperometric oxygen sensor, oxygen partial pressure, implantable catheters, double-lumen catheter, thrombus formation, biocompatibility
MeSH terms
Animals, Electrochemistry, Monitoring, Physiologic, Nitric Oxide, Oxygen, Rabbits, Swine, Biosensing Techniques

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