Cited by 285Diabetes Management and ResearchElectrochemical sensors and biosensorsPancreatic function and diabetes

Technologies for Continuous Glucose Monitoring: Current Problems and Future Promises

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Vaddiraju, Santhisagar, Burgess, Diane J., Tomazos, Ioannis, Jain, Faquir C., Papadimitrakopoulos, Fotios·2010·Journal of Diabetes Science and Technology

Abstract

Devices for continuous glucose monitoring (CGM) are currently a major focus of research in the area of diabetes management. It is envisioned that such devices will have the ability to alert a diabetes patient (or the parent or medical care giver of a diabetes patient) of impending hypoglycemic/hyperglycemic events and thereby enable the patient to avoid extreme hypoglycemic/hyperglycemic excursions as well as minimize deviations outside the normal glucose range, thus preventing both life-threatening events and the debilitating complications associated with diabetes. It is anticipated that CGM devices will utilize constant feedback of analytical information from a glucose sensor to activate an insulin delivery pump, thereby ultimately realizing the concept of an artificial pancreas. Depending on whether the CGM device penetrates/breaks the skin and/or the sample is measured extracorporeally, these devices can be categorized as totally invasive, minimally invasive, and noninvasive. In addition, CGM devices are further classified according to the transduction mechanisms used for glucose sensing (i.e., electrochemical, optical, and piezoelectric). However, at present, most of these technologies are plagued by a variety of issues that affect their accuracy and long-term performance. This article presents a critical comparison of existing CGM technologies, highlighting critical issues of device accuracy, foreign body response, calibration, and miniaturization. An outlook on future developments with an emphasis on long-term reliability and performance is also presented.

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  • Miniaturization of optical glucose monitoring instrumentation is not currently possible, preventing personalized continuous monitoring devices.

    “Moreover, miniaturization of the instrumentation is not currently possible thus precluding personalized devices for continuous monitoring.19”
  • Microdialysis avoids direct sensor implantation, but in vivo glucose recovery is erratic because of the foreign body response.

    “Microdialysis avoids direct implantation of a sensor but the glucose measurement (i.e., recovery) remains erratic in vivo due to the foreign body response.19,24–25”
  • Near-infrared spectroscopy allows 90-95% of light to pass through the stratum corneum and epidermis into subcutaneous space with minimal tissue adsorption independent of skin pigmentation.

    “Optical detection of glucose via near infrared (NIR) spectroscopy enables 90–95% of the light to pass through the human stratum corneum and epidermis into subcutaneous space with minimal tissue adsorption independent of skin pigmentation.19,40–41”
  • Photobleaching of fluorophores and tissue scattering are significant drawbacks of optical glucose detection.

    “Photobleaching of the fluorophore and scattering in tissue are significant drawbacks.19,35–36”
  • Most electron mediators used in second-generation glucose biosensors are toxic, and mediator-oxygen competition persists.

    “Unfortunately, most mediators are toxic and competition between the mediator and oxygen still exists.19,22”

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Authors
Vaddiraju, S., Burgess, D. J., Tomazos, I., Jain, F. C., & Papadimitrakopoulos, F.
Affiliations
University of Connecticut (US)
Corresponding author
Papadimitrakopoulos, Fotios
Venue
Journal of Diabetes Science and Technology
Published
2010-11
Volume
4
Issue
6
Pages
1540-1562
ISSN
1932-2968 (ISSN-L)
OpenAlex
W2161313513
Cited by
285
References
181
Citations by year
2026: 19 · 2025: 14 · 2024: 9 · 2023: 17 · 2022: 12 · 2021: 15 · 2020: 8 · 2019: 24 · 2018: 25 · 2017: 19 · 2016: 27 · 2015: 24 · 2014: 22 · 2013: 25 · 2012: 14
FWCI
12.10
Type
journal article
Language
en
Open access
Locations
  • Journal of Diabetes Science and Technology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (1-R21-HL090458-01, R21HL090458)
  • National Institute of Environmental Health Sciences (ES013557, R01ES013557)
  • National Institute of Biomedical Imaging and Bioengineering (R43EB011886)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
continuous glucose monitoring, diabetes management, artificial pancreas, glucose sensor, hypoglycemia detection, hyperglycemia, non-invasive glucose monitoring, electrochemical glucose sensor, optical glucose sensor, piezoelectric sensors, foreign body reaction, sensor calibration, device miniaturization, sensor accuracy, long-term reliability
MeSH terms
Blood Glucose, Diabetes Mellitus, Equipment Design, Forecasting, Humans, Insulin Infusion Systems, Miniaturization, Predictive Value of Tests, Signal Processing, Computer-Assisted, Time Factors, Reproducibility of Results, Biomarkers, Monitoring, Ambulatory

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