How will calculate lifetime measurement?

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Sample preparation for XPS for nanocluster

I have been prepared bovine serum albumin (BSA) capped gold nanoclusters using water as medium and it has luminescent property. If i need XPS for this sample, how will it give for XPS measurement?...

07 August 2017 8,992 4 View

Sample preparation for TEM measurement in BSA-gold nanocluster

I have been prepared bovine serum albumin (BSA) capped gold nanoclusters and it has red luminescent in UV light (the procedure was already established). During TEM analysis (200 kv), nanocluster...

06 July 2017 667 9 View

What is the interaction between melamine gold NPs and GC electrode?

when cleaned Glassy carbon electrode directly immersed in melamine gold nanoparticles, it aggregated within a minutes. What may be reason behind the aggregation?

09 October 2015 6,912 4 View

In some cases of real sample analysis (i.e human serum, urine samples) are pre-treated with acetonitrile before the measurement analysis. Why?

What is the difference between pre-treated with acetonitrile and directly used real sample analysis for measurement?

07 August 2015 5,501 2 View

Hello researchers Is this a random laser or just fluorescence?

I am using Rhodamine6G as gain medium and silver nanoparticles as scatterers on a microscope slide and laser input 532 nm comes from above.

09 August 2024 9,894 2 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Are there any commercially available Donkey anti-Alpaca secondary antibodies?

Are there any fluorescently labeled anti-Alpaca secondary antibodies raised in Donkey? So far I have only been able to find anti-Alpaca secondaries raised in Goat. Or is this not possible due to...

04 August 2024 4,255 1 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

How to calculate the molar proportions of the oxides from the XRF analyses?

02 August 2024 2,565 2 View

How to quantify the fluorescence intensity of only the merge area of an image using ImageJ software?

Dear All: I have to quantify the fluorescence intensity of cells that are fluorescent to two different markers, so i'm interested in finding out if this is possible. Previously I have...

22 July 2024 8,770 1 View

How to determine LOD values?

I am performing fluorescence experiments using a ligand to detect metal ions. I want to determine the Lowest Detection Limit (LOD) using the formula LOD = 3σ / K. However, I'm uncertain about...

19 July 2024 1,086 1 View

My nanoparticle has a lower fluorescence life time of 2 ns (usual life time between 3-10 ns). what are the inferences I can get from this?

what all details we will get from fluorescence life time data

10 July 2024 505 1 View

Can someone please explain to me what power law statistics mean in single molecule fluorescence blinking ?

I am a beginner in this field. While I am reading papers and the understanding is getting better. However can someone explain in easy and simple words. Really thankful !

08 July 2024 8,337 5 View

Does anyone know how to improve calcium-imaging fluorescence with GRIN lenses?

Hey everyone, I've been working with GRIN lenses (Inscopix) for almost 1 year and still had no luck seeing strong fluorescence on them. When I look at them, I can see good blood flow and,...

08 July 2024 5,178 2 View