I fabricated GNP by reduction of sodium citrate but its colour is not bright red ,, what might be the reason ?

Aqsa Qambrani @Aqsa-Qambrani

29 May 2018 1 10K Report

Fabrication of GNP

Abdelhalim abdelnaby Zekry

Dear Aqsa,

It is the gold nano particle size that affects the appearance color.

https://www.ideals.illinois.edu/handle/2142/75909

Best wishes

Badges
Science topic

More Aqsa Qambrani's questions See All

Iam trying to check floiurescence in bacteria, but iam failed?

I am working on E.coli bacteria after growing bacteria in LB I centrifuge it at 7000 then resuspend it and add 2 ml deionized sterile water and 19 microliters gold. In the confocal machine, there...

14 November 2019 2,774 3 View

Cell lines to evaluate cytotoxicity of drug?

Hi Everyone, I am working on some drugs for HSV. I am wondering what are the best heart, liver and kidney cells lines to evaluate cytotoxicity of my drug on heart, liver and kidney...

17 June 2019 7,591 2 View

Hi , I wanted to collect exosomes from cell culture media through ultracentrifugation.but i couldn't see pallet. Why?

I collected media in two bottles and centrifuge for 800g RCF for 10 minutes . i couldn't see any pallet , then i went for 2000g for 20 minutes still nothing what should be the possible reason?

27 December 2018 5,642 3 View

I want to collect blood of normal mouse after treating it with Ag to check drug uptake, What is best way to collect blood?

doing animal model, for cancer related research

19 December 2018 2,428 3 View

My pure anabaen sample is contaminated with chlorella vulgaris. How to get rid of chlorella and keep anabaen pure?

I am facing problem regarding purification of anabaena. i have used serial dilution and plate streaking method. But everytime the culture is contaminated with chlorella vulgaris. I have to perform...

12 November 2018 7,869 3 View

How wind speed is mathematically related wind power???

23 February 2018 1,959 5 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Alternative to mediation analysis?

I am currently working on my dissertation and want to explore the role of competence as a mediator between the effect of colour of clothes on voting intention (focus on Western countries)....

21 February 2021 8,609 1 View

What might be the reason for obtaining two bands in plant genomic DNA extraction?

I got a thin band and a thick band i guess it would be the genomic DNA and the 260/280 ratio is 3.

21 February 2021 6,523 6 View