Next Article in Journal
Sensing Technologies for Autism Spectrum Disorder Screening and Intervention
Next Article in Special Issue
Analytical Protein Microarrays: Advancements Towards Clinical Applications
Previous Article in Journal
TPLE: A Reliable Data Delivery Scheme for On-Road WSN Traffic Monitoring
Previous Article in Special Issue
Improvement of Depth Profiling into Biotissues Using Micro Electrical Impedance Spectroscopy on a Needle with Selective Passivation
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(1), 45; doi:10.3390/s17010045

DEP-On-Go for Simultaneous Sensing of Multiple Heavy Metals Pollutants in Environmental Samples

1
BioDevice Technology Ltd., 2-13 Asahidai, Nomi City, Ishikawa 923-1211, Japan
2
Biyani BioSolutions Pvt. Ltd., Biyani Research Group, R-4, Sector 3, Vidhyadhar Nagar, Jaipur 302023, India
3
Department of Bioscience and Biotechnology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi City, Ishikawa 923-1292, Japan
4
Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Meyya Meyyappan
Received: 27 November 2016 / Revised: 21 December 2016 / Accepted: 23 December 2016 / Published: 27 December 2016
(This article belongs to the Special Issue Point-of-Care Biosensors)
View Full-Text   |   Download PDF [2131 KB, uploaded 27 December 2016]   |  

Abstract

We describe a simple and affordable “Disposable electrode printed (DEP)-On-Go” sensing platform for the rapid on-site monitoring of trace heavy metal pollutants in environmental samples for early warning by developing a mobile electrochemical device composed of palm-sized potentiostat and disposable unmodified screen-printed electrode chips. We present the analytical performance of our device for the sensitive detection of major heavy metal ions, namely, mercury, cadmium, lead, arsenic, zinc, and copper with detection limits of 1.5, 2.6, 4.0, 5.0, 14.4, and, 15.5 μg·L−1, respectively. Importantly, the utility of this device is extended to detect multiple heavy metals simultaneously with well-defined voltammograms and similar sensitivity. Finally, “DEP-On-Go” was successfully applied to detect heavy metals in real environmental samples from groundwater, tap water, house dust, soil, and industry-processed rice and noodle foods. We evaluated the efficiency of this system with a linear correlation through inductively coupled plasma mass spectrometry, and the results suggested that this system can be reliable for on-site screening purposes. On-field applications using real samples of groundwater for drinking in the northern parts of India support the easy-to-detect, low-cost (<1 USD), rapid (within 5 min), and reliable detection limit (ppb levels) performance of our device for the on-site detection and monitoring of multiple heavy metals in resource-limited settings. View Full-Text
Keywords: heavy metal ions; environmental analysis; electrochemical sensor; screen printed electrode palm-sized potentiostat heavy metal ions; environmental analysis; electrochemical sensor; screen printed electrode palm-sized potentiostat
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Biyani, M.; Biyani, R.; Tsuchihashi, T.; Takamura, Y.; Ushijima, H.; Tamiya, E.; Biyani, M. DEP-On-Go for Simultaneous Sensing of Multiple Heavy Metals Pollutants in Environmental Samples. Sensors 2017, 17, 45.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top