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Emerging Applications of Electrochemical Impedance Spectroscopy in Tear Film Analysis     
Yazarlar
Berin Özdalgıç
Doğuş Üniversitesi, Türkiye
Münire Gül
Türkiye
 Zihni Onur UYGUN Zihni Onur UYGUN
Kafkas Üniversitesi, Türkiye
Nazente Atçeken
Türkiye
Savaş Taşoğlu
Türkiye
Özet
Human tear film, with a flow rate of 1–3 µL/min, is a rich bodily fluid that transmits a variety of metabolites and hormones containing proteins, lipids and electrolytes that provide clues about ocular and systemic diseases. Analysis of disease biomarkers such as proteins, mRNA, enzymes and cytokines in the tear film, collected by noninvasive methods, can provide significant results for sustaining a predictive, preventive and personalized medicine regarding various diseases such as glaucoma, diabetic retinopathy, keratoconus, dry eye, cancer, Alzheimer’s disease, Parkinson’s disease and COVID-19. Electrochemical impedance spectroscopy (EIS) offers a powerful technique for analyzing these biomarkers. EIS detects electrical equivalent circuit parameters related to biorecognition of receptor–analyte interactions on the electrode surface. This method is advantageous as it performs a label-free detection and allows the detection of non-electroactive compounds that cannot be detected by direct electron transfer, such as hormones and some proteins. Here, we review the opportunities regarding the integration of EIS into tear fluid sampling approaches.
Anahtar Kelimeler
biosensing | ocular diagnosis | systemic disease diagnosis | tear fluid | electrochemical impedance spectroscopy
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı BIOSENSORS-BASEL
Dergi ISSN 2079-6374
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 10-2022
Cilt No 12
Sayı 10
Sayfalar 1 / 21
Doi Numarası 10.3390/bios12100827
Makale Linki http://dx.doi.org/10.3390/bios12100827