A novel colorimetric sensor strip for the detection of glyphosate in water

Almeida, Leda Karine; Chigome, Samuel; Torto, Nelson; Frost, Carminita; Pletschke, Brett I.

doi:10.1016/j.snb.2014.09.039

Cited by 80 publications

(31 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, ICS appears to be an easy and onsite membranebased immunoassay method with low cost, which has increasingly gained attention for the residue detection of pesticides (De Almeida, Chigome, Torto, Frost, & Pletschke, 2015), veterinary drugs , mycotoxins , pathogens (Leem, Shukla, Song, Heu, & Kim, 2014), heavy metal (Zhu et al, 2014), banned additives (Song et al, 2011), and even on disease diagnosis areas . The ICS now mostly employ colloidal gold as reporters for colorimetric detection which require no special equipment and reagents, and the visible results of ICS can judged by the naked eye.…”

Section: Introductionmentioning

confidence: 99%

Development of a lateral flow colloidal gold immunoassay strip for the simultaneous detection of Shigella boydii and Escherichia coli O157:H7 in bread, milk and jelly samples

Song

Cheng²,

et al. 2016

Food Control

102

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Development of a lateral flow colloidal gold immunoassay strip for the simultaneous detection of Shigella boydii and Escherichia coli O157:H7 in bread, milk and jelly samples

Song

Cheng²,

et al. 2016

Food Control

102

View full text Add to dashboard Cite

“…This method is highly sensitive compared to previous reports. For instance, a colorimetric method for the determination of glyphosate was developed, with LOD of 100 ng mL −1 [27]. Anion-exchange chromatography with coulometric detection was used for the determination of glyphosate and AMPA in water, and the LODs were 38 ng mL −1 for glyphosate, 240 ng mL −1 for APMA [28].…”

Section: Comparison To Previous Reportsmentioning

confidence: 99%

Sensitive, rapid and non-derivatized determination of glyphosate, glufosinate, bialaphos and metabolites in surface water by LC–MS/MS

Guo

Gao²,

Guo

et al. 2019

SN Appl. Sci.

View full text Add to dashboard Cite

Glyphosate, glufosinate and bialaphos are widely used worldwide as herbicides. It has been reported that they can transfer into environmental water bodies, posing health threat to human. Thus, a sensitive and rapid analysis methodology for these compounds and corresponding metabolites is highly necessary. Due to their zwitterionic nature, previously reported methods for determination of these compounds generally require derivatization. Also, preconcentration step is typically needed in order to obtain high sensitivity. Herein, we report a very convenient and sensitive assay for these herbicides as well as corresponding metabolites in surface water. With judicious tuning of chromatographic conditions, very low LODs were achieved without derivatization or preconcentration step. The LODs were 0.15 ng mL −1 for glyphosate, glufosinate, MPPA and bialaphos, 0.1 ng mL −1 for AMPA. The LOQs were 0.5 ng mL −1 for glyphosate, glufosinate, MPPA and bialaphos, 0.3 ng mL −1 for AMPA. Recoveries ranging in 90.3-102.8% were obtained. The intra-day relative standard deviations (RSDs) ranged in 4.0-5.6%, while the inter-day RSDs ranged in 4.7-6.7%. The ME (n = 6) ranged from 92.6 to 97.2%. This assay was applied to real samples of surface water. This method is very promising for application in determination and routine monitoring of these compounds in environmental water bodies.

show abstract

“…Colorimetric NP‐doped nanofibers have also been used for environmental monitoring. For example, Pletschke et al proposed a two‐step method to detect glyphosate with the help of copper‐doped poly(vinyl)alcohol nanofibers . Glyphosate is the most widely applied herbicide, but its use is restricted due to potential environmental impact and health hazards.…”

Section: Colorimetric Sensors Based On Doped Nanofibersmentioning

confidence: 99%

Colorimetric Nanofibers as Optical Sensors

Schoolaert

Hoogenboom

Clerck

2017

Adv Funct Materials

118

View full text Add to dashboard Cite

Sensors play a major role in many applications today, ranging from biomedicine to safety equipment, where they detect and warn us about changes in the environment. Nanofibers, characterized by high porosity, flexibility, and a large specific surface area, are the ideal material for ultrasensitive, fastresponding, and user-friendly sensor design. Indeed, a large specific surface area increases the sensitivity and response time of the sensor as the contact area with the analyte is enlarged. Thanks to the flexibility of membranes, nanofibrous sensors cannot only be applied in high-end analyte detection, but also in personal, daily use. Many different nanofibrous sensors have already been designed; albeit, the most straightforward and easiest-to-interpret sensor response is a visual change in color, which is of particular interest in the case of warning signals. Recently, many researchers have focused on the design of so-called colorimetric nanofibers, which typically involve the incorporation of a colorimetric functionality into the nanofibrous matrix. Many different strategies have been used and explored for colorimetric nanofibrous sensor design, which are outlined in this feature article. The many examples and applications demonstrate the value of colorimetric nanofibers for advanced optical sensor design, and could provide directions for future research in this area.

show abstract

A novel colorimetric sensor strip for the detection of glyphosate in water

Cited by 80 publications

References 25 publications

Development of a lateral flow colloidal gold immunoassay strip for the simultaneous detection of Shigella boydii and Escherichia coli O157:H7 in bread, milk and jelly samples

Development of a lateral flow colloidal gold immunoassay strip for the simultaneous detection of Shigella boydii and Escherichia coli O157:H7 in bread, milk and jelly samples

Sensitive, rapid and non-derivatized determination of glyphosate, glufosinate, bialaphos and metabolites in surface water by LC–MS/MS

Colorimetric Nanofibers as Optical Sensors

Contact Info

Product

Resources

About