Do you want BuboFlash to help you learning these things? Or do you want to add or correct something? Click here to log in or create user.



The team harvested water hyacinth leaves, removed the chlorophyll, dried and powdered it. The sieved powder underwent several treatments including heating at 150 degree Celsius to convert it to carbon dots. “When a nanoparticle is less than 10 nanometre we call it a dot or nanodot. Our carbon dots were able to give a green fluorescence under UV light. The extremely small oxygen functional groups on the surface of the dot are responsible for the fluorescence,” explains the first author of the paper Manash Jyoti Deka.

The herbicide pretilachlor is mixed with water and carbon dots, and studied using special equipment. The fluorescence intensity increases in the presence of the herbicide. The team also tested using different pesticides and other compounds having similar chemical structure and found that the carbon dot was extremely sensitive to pretilachlor and could detect even very small quantity of the herbicide. After successful testing in the laboratory conditions, the team collected soil samples from different places across the State and proved the efficiency of the carbon dots in detecting pretilachor in soil samples.

If you want to change selection, open document below and click on "Move attachment"

Unknown title
wdhury from the Material Nanochemistry lab at the Institute of Advanced Study in Science and Technology, Assam. He is the corresponding author of the work published in Heliyon. Leaves to carbon <span>The team harvested water hyacinth leaves, removed the chlorophyll, dried and powdered it. The sieved powder underwent several treatments including heating at 150 degree Celsius to convert it to carbon dots. “When a nanoparticle is less than 10 nanometre we call it a dot or nanodot. Our carbon dots were able to give a green fluorescence under UV light. The extremely small oxygen functional groups on the surface of the dot are responsible for the fluorescence,” explains the first author of the paper Manash Jyoti Deka. The herbicide pretilachlor is mixed with water and carbon dots, and studied using special equipment. The fluorescence intensity increases in the presence of the herbicide. The team also tested using different pesticides and other compounds having similar chemical structure and found that the carbon dot was extremely sensitive to pretilachlor and could detect even very small quantity of the herbicide. After successful testing in the laboratory conditions, the team collected soil samples from different places across the State and proved the efficiency of the carbon dots in detecting pretilachor in soil samples. Fluorescence enhancement The paper also describes the mechanism by which electron transfer happens between the dot and the herbicide which enables the fluorescence enhancement. Dr. Chow


Summary

statusnot read reprioritisations
last reprioritisation on suggested re-reading day
started reading on finished reading on

Details



Discussion

Do you want to join discussion? Click here to log in or create user.