Journal article
A 3D-Printed, Portable, Optical-Sensing Platform for Smartphones Capable of Detecting the Herbicide 2,4-Dichlorophenoxyacetic Acid
Analytical chemistry (Washington), Vol.89(17), pp.9339-9346
09/05/2017
PMID: 28727917
Abstract
Onsite rapid detection of herbicides and herbicide residuals in environmental and biological specimens are important for agriculture, environmental concerns, food safety, and health care. The traditional method for herbicide detection requires expensive laboratory equipment and a long turnaround time. In this work, we developed a single-stripe microliter plate smartphone-based colorimetric device for rapid and low-cost in-field tests. This portable smartphone platform is capable of screening eight samples in a single-stripe microplate. The device combined the advantages of small size (50 × 100 × 160 mm
) and low cost ($10). The platform was calibrated by using two different dye solutions, i.e. methyl blue (MB) and rhodamine B, for the red and green channels. The results showed good correlation with results attained from a traditional laboratory reader. We demonstrated the application of this platform for detection of the herbicide 2,4-dichlorophenoxyacetic acid in the range of 1 to 80 ppb. Spiked samples of tap water, rat serum, plasma, and human serum were tested by our device. Recoveries obtained varied from 95.6% to 105.2% for all of the spiked samples using the microplate reader and from 93.7% to 106.9% for all of the samples using the smartphone device. This work validated that the smartphone optical-sensing platform is comparable to the commercial microplate reader; it is eligible for onsite, rapid, and low-cost detection of herbicides for environmental evaluation and biological monitoring.
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Details
- Title
- A 3D-Printed, Portable, Optical-Sensing Platform for Smartphones Capable of Detecting the Herbicide 2,4-Dichlorophenoxyacetic Acid
- Creators
- Yijia Wang - Washington State UniversityMohamed M A Zeinhom - Washington State UniversityMingming Yang - Washington State UniversityRongrong Sun - Washington State UniversityShengfu Wang - Hubei UniversityJordan N Smith - Pacific Northwest National LaboratoryCharles Timchalk - Pacific Northwest National LaboratoryLei Li - Washington State UniversityYuehe Lin - Washington State UniversityDan Du - Washington State University
- Publication Details
- Analytical chemistry (Washington), Vol.89(17), pp.9339-9346
- Academic Unit
- School of Mechanical and Materials Engineering
- Grant note
- R01OH011023 / ACL HHS R01 OH011023 / NIOSH CDC HHS
- Identifiers
- 99901227849101842
- Language
- English
- Resource Type
- Journal article