TY - JOUR ID - open1615 UR - http://www.sciencedirect.com/science/article/pii/S0956566313000213 A1 - Chopra, Adity A1 - Tuteja, Satish A1 - Sachdeva, Naresh A1 - Bhasin, K K A1 - Bhalla, Vijayender A1 - Suri, C Raman Y1 - 2013/06/15/ N2 - Highly luminescent water soluble CdTe quantum dots (QDs) were synthesized and conjugated with anti-HbA1c antibody to generate specific nanobioprobe. A sandwich immunoassay model was employed using capture HbA1c antibody as a specific receptor molecule and the QD-labeled secondary antibody as a dual (fluorescence cum electrochemical) tracer to quantify the concentration of HbA1c. A linear increase in current was observed for HbA1c analytical standards with a R(2) value of 0.990 and coefficient of variance ~5%. A comparison between HPLC and dual immunoassay for clinical samples showed a correlation coefficient of 89% and 96% for fluorescence and electrochemical detection methods respectively. The QD-based immunoassay shows great promise for rapid reproducible and cost effective analysis of HbA1c in clinical samples. PB - Oxford : Elsevier Advanced Technology JF - Biosensors & bioelectronics VL - 44 SN - 1873-4235 TI - CdTe nanobioprobe based optoelectrochemical immunodetection of diabetic marker HbA1c. SP - 132 EP - 5 ER -