TY - JOUR
T1 - Electrochemical Phosphate Sensors Using Silver Nanowires Treated Screen Printed Electrodes
AU - Kabir, Md Faisal
AU - Rahman, Md Tawabur
AU - Gurung, Ashim
AU - Qiao, Qiquan
N1 - Funding Information:
Manuscript received November 30, 2017; revised January 28, 2018; accepted February 16, 2018. Date of publication February 27, 2018; date of current version April 9, 2018. This work was supported in part by the South Dakota State University Electrical Engineering Graduate Program, in part by the NSF MRI Project under Project CBET-1428992, and in part by the South Dakota Governor Research Center Program. The associate editor coordinating the review of this paper and approving it for publication was Dr. Chang-Soo Kim. (Md Faisal Kabir and Md Tawabur Rahman contributed equally to this work.) (Corresponding author: Qiquan Qiao.) The authors are with the Department of Electrical Engineering, South Dakota State University, Brookings, SD 57007 USA (e-mail: qiquan.qiao@sdstate.edu). Digital Object Identifier 10.1109/JSEN.2018.2808163
Publisher Copyright:
© 2001-2012 IEEE.
PY - 2018/5/1
Y1 - 2018/5/1
N2 - Essential biomolecules of the human body and plant growth depend upon the proper amount of phosphate ions. Phosphorus has critical values in both agricultural and biomedical applications. There is a need for inexpensive, portable, repeatable, highly sensitive, and field deployable sensors with wide detection range to monitor the health of water system and field soil. This paper aims to develop an electrochemical phosphate sensor using novel ammonium molybdate tetrahydrate/silver nanowires (AMT/AgNWs) modified screen printed electrode (SPE) for phosphate detection to achieve simplicity, high sensitivity, wide detection range, and high repeatability and portability. The cyclic voltammetry measurements exhibited the sensitivities of AMT modified SPE without and with AgNWs are 0.1μ Aμ M and 0.71mu; Aμ M , respectively. The use of highly conductive AgNWs significantly increased the sensitivities of the AMT/SPE. Besides, AgNWs and AMT modified SPE (AMT/AgNWs/SPE) showed a very wide detection range of 5μ M -1 mM. The maximum relative standard deviation of around 5% confirms the repeatability of the proposed sensor. This paper suggests that AMT/AgNWs/SPE is promising for simple, low-cost, and portable phosphate ion detection.
AB - Essential biomolecules of the human body and plant growth depend upon the proper amount of phosphate ions. Phosphorus has critical values in both agricultural and biomedical applications. There is a need for inexpensive, portable, repeatable, highly sensitive, and field deployable sensors with wide detection range to monitor the health of water system and field soil. This paper aims to develop an electrochemical phosphate sensor using novel ammonium molybdate tetrahydrate/silver nanowires (AMT/AgNWs) modified screen printed electrode (SPE) for phosphate detection to achieve simplicity, high sensitivity, wide detection range, and high repeatability and portability. The cyclic voltammetry measurements exhibited the sensitivities of AMT modified SPE without and with AgNWs are 0.1μ Aμ M and 0.71mu; Aμ M , respectively. The use of highly conductive AgNWs significantly increased the sensitivities of the AMT/SPE. Besides, AgNWs and AMT modified SPE (AMT/AgNWs/SPE) showed a very wide detection range of 5μ M -1 mM. The maximum relative standard deviation of around 5% confirms the repeatability of the proposed sensor. This paper suggests that AMT/AgNWs/SPE is promising for simple, low-cost, and portable phosphate ion detection.
KW - Electrochemical sensors
KW - ammonium molybdate tetrahydrate
KW - phosphate ion
KW - screen printed electrode
KW - silver nanowires
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U2 - 10.1109/JSEN.2018.2808163
DO - 10.1109/JSEN.2018.2808163
M3 - Article
AN - SCOPUS:85042730203
SN - 1530-437X
VL - 18
SP - 3480
EP - 3485
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 9
ER -