Nguyễn Quân

6 Questions 3 Answers 0 Followers

Questions related from Nguyễn Quân

How can I measure the stability over time nanoparticles ?

I keeped the nanoparticles silver in a dark bottle and the vial for a period of one year under the conditions of the scattered sunlight lab, and noticed that the color, UV–Vis spectra analysis...

05 May 2019 4,264 3 View

How to extract pure silver nanoparticles ?

I'm trying to synthesize silver nanoparticles. Some materials need to be centrifuged in order to remove unwanted material, washed with distilled water and dried. I do not understand this. Can...

09 September 2018 5,020 3 View

Synthesis of silver nanoparticles from leaves and tubers, and effects of AgNO3 concentrations ?

I'm trying to synthesize silver nano from parts of plants - Synthetic silver nanoparticles are thick and yellowish brown - Nano-silver from the roots is transparent at high Ag ionic...

09 September 2018 9,884 3 View

How can I draw a graph like this?

I have full data I tried Statgraphics and origin but it did not work

08 August 2018 9,426 0 View

Biovar test R. solanacearum bromothymol blue changes color from Yellow to Blue ?

I wanted to try another Biovar method, so I keep biovar test medium in pH 4.5 (yellow) and after 28 day the indicator changed color from Yellow to Blue. What happen ?

04 April 2018 7,109 0 View

How can we calculate the concentration of nanoparticles silver from TEM or UV-VIS ?

I produded NPs silver from trichoderma sp, I have UV-VIS machine, sample NPs 500ppm silver synthesized by chemical methods and TEM image of my NPs silver. Can I calculate the concentration of...

03 March 2018 7,183 1 View