TY - GEN
T1 - Label-free detection of lactoferrin and beta-2-microglobuin in contrived tear film using a low-cost electrical biosensor chip
AU - Khan, Muhammad S.
AU - Dighe, Ketan
AU - Wang, Zhen
AU - Daza, Enrique
AU - Schwartz-Duval, Aaron S.
AU - Rowley, Conor P.
AU - Calvillo, Isaac A.
AU - Misra, Santosh K.
AU - Labriola, Leanne T.
AU - Pan, Dipanjan
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/19
Y1 - 2017/12/19
N2 - In this paper, we present a biosensor chip to study two important biomarkers, lactoferrin (LCF) and beta-2-microglubin (B2M) present in our tear fluid. LCF and B2M have direct relevance with dry eye syndrome and diabetic retinopathy in patients respectively. We have developed a multi-layer paper-based biosensor chip connected with handheld printed circuit board (PCB) to monitor the effectiveness of B2M and LCF in contrived tear film (TF) with a wide range of detection (RoD) from 0.001 to 1ng/mL (R2=0.9886) and 1 to 10mg/mL (R2=0.9554) respectively. Multilayer biosensor is composed of graphene nanoplatelet and diblock-co-polymer coated on a filter paper followed by deposition of micro-Au electrodes. Anti-LCF and anti-B2M antibodies were immobilized via 3,3′-dithiodipropionic acid di(N-hydroxysuccinimide ester (DTSP) as a self-assembled monolayer (SAM) on Au. In addition to electrical measurements in real-time setup, Raman spectral analysis and SEM were utilized to characterize the sensor surface before and after testing the relevant proteins. We anticipate that the fabricated sensor chip has promising application to study dry-eye-disease (DED) and diabetes in Point-of-care (POC) setting.
AB - In this paper, we present a biosensor chip to study two important biomarkers, lactoferrin (LCF) and beta-2-microglubin (B2M) present in our tear fluid. LCF and B2M have direct relevance with dry eye syndrome and diabetic retinopathy in patients respectively. We have developed a multi-layer paper-based biosensor chip connected with handheld printed circuit board (PCB) to monitor the effectiveness of B2M and LCF in contrived tear film (TF) with a wide range of detection (RoD) from 0.001 to 1ng/mL (R2=0.9886) and 1 to 10mg/mL (R2=0.9554) respectively. Multilayer biosensor is composed of graphene nanoplatelet and diblock-co-polymer coated on a filter paper followed by deposition of micro-Au electrodes. Anti-LCF and anti-B2M antibodies were immobilized via 3,3′-dithiodipropionic acid di(N-hydroxysuccinimide ester (DTSP) as a self-assembled monolayer (SAM) on Au. In addition to electrical measurements in real-time setup, Raman spectral analysis and SEM were utilized to characterize the sensor surface before and after testing the relevant proteins. We anticipate that the fabricated sensor chip has promising application to study dry-eye-disease (DED) and diabetes in Point-of-care (POC) setting.
UR - https://www.scopus.com/pages/publications/85048573128
UR - https://www.scopus.com/pages/publications/85048573128#tab=citedBy
U2 - 10.1109/HIC.2017.8227587
DO - 10.1109/HIC.2017.8227587
M3 - Conference contribution
AN - SCOPUS:85048573128
T3 - 2017 IEEE Healthcare Innovations and Point of Care Technologies, HI-POCT 2017
SP - 72
EP - 75
BT - 2017 IEEE Healthcare Innovations and Point of Care Technologies, HI-POCT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE Healthcare Innovations and Point of Care Technologies, HI-POCT 2017
Y2 - 6 November 2017 through 8 November 2017
ER -