Development of a biodegradable microfluidic paper-based device for blood-plasma separation integrated with non-enzymatic electrochemical detection of ascorbic acid

被引:13
作者
Gautam, Neha [1 ]
Verma, Rahul [2 ]
Ram, Rishi [1 ]
Singh, Jay [2 ]
Sarkar, Arnab [1 ]
机构
[1] Indian Inst Technol BHU, Dept Mech Engn, Varanasi 221005, India
[2] Banaras Hindu Univ, Inst Sci, Dept Chem, Varanasi 221005, India
关键词
mu PAD; Blood-plasma separation; n-MgF/SPE; Electrochemical sensor; POC device; Ascorbic acid; LOW-COST; URIC-ACID; SENSOR; GOLD; NANOPARTICLES; ELECTRODES; INDUSTRIAL; DOPAMINE; GRAPHENE; MGFE2O4;
D O I
10.1016/j.talanta.2023.125019
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In the present article, we developed an electrochemical microfluidic paper-based device (E mu PAD) for the non-enzymatic detection of Ascorbic Acid (AA) concentration in plasma using whole human blood. We combined LF1 blood plasma separation membrane and Whatman grade 1 filter paper to separate plasma from whole blood through wax printing. A screen-printed electrode (SPE) was modified with spherical-shaped MgFe2O4 nanomaterial (n-MgF) to improve the catalytic properties of SPE. The n-MgF was prepared via hydrothermal method, and its material phase and morphology were confirmed via XRD, FTIR, TEM, SEM, and AFM analysis. The fabricated n-MgF/SPE/E mu PAD exhibited detection of AA ranging from 0 to 80 mu M. The obtained value of the detection limit, limit of quantification, sensitivity, and response time are 2.44 mu M, 8.135 mu M, 5.71 x 10(-3) mA mu M-1 cm(-2), and 10 s, respectively. Our developed n-MgF/SPE/E mu PAD shows marginal interference with the common analytes present in plasma, such as uric acid, glutamic acid, glucose, urea, lactic acid, and their mixtures. Overall, our low-cost, portable device with its user-friendly design and efficient plasma separation capability offers a practical and effective solution for estimating AA concentration from whole human blood in a single step.
引用
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页数:10
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