Journal
BIOSENSORS & BIOELECTRONICS
Volume 100, Issue -, Pages 214-227Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2017.09.008
Keywords
Triglycerides (TGs); Detection methods for TG; TG biosensors; Nano-materials; Biological materials; Hyperlipidemia
Categories
Funding
- Council of Scientific and Industrial Research (CSIR), (New Delhi) [21(967)/13/EMR-II]
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Triglycerides (TGs) are the major transporters of dietary fats throughout the bloodstream. Besides transporting fat, TGs also act as stored fat in adipose tissue, which is utilized during insufficient carbohydrates supply. TG level is below 150 mg/dL in healthy persons. Elevated TGs level in blood over 500 mg/dL is a biomarker for cardiovascular diseases, Alzheimer disease, pancreatitis and diabetes. Numerous methods are accessible for recognition of TGs, among them, most are cumbersome, time-consuming, require sample pre-treatment, high cost instrumental set-up and experienced personnel to operate. Biosensing approach overcomes these disadvantages, as these are highly specific, fast, easy, cost effective, and highly sensitive. This review article describes the classification, operating principles, merits and demerits of TG biosensors, specifically nanomaterials based biosensors. TG biosensors work ideally within 2.5-2700 s, in pH range, 6.0-11.0, temperature 25-39.5 degrees C and TG concentration range, 0.001-100 mM, the detection limits being in the range, 0.1 nM to 0.56 mM, with working potential - 0.02 to 1.2 V. These biosensors measured TG level in fruit juices, beverages, sera and urine samples and reused upto 200 times over a period of 7-240 days, while stored dry at 4 degrees C. Future perspective for further improvement and commercialization of TG biosensors are discussed.
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