Fluorophore with excitation at the UVC range and emission in the visible range?

06 March 2018 0 2K Report

Greetings all

I am looking for a fluorophore with excitation at the UVC range (250~260nm) and emission in the UVA/visible range. Ideally one that will not bleach easily.

Many thanks

Yoram

Badges
Science topic

More Yoram Gerchman's questions See All

Separation of Cholesteryl esters from alkanes/alkenes?

Greetings We are trying to study Cholesteryl esters. We start with MeOH/Chloroform extraction and then remove most of the noise by silica column, but the Cholesteryl esters come out with...

02 June 2024 5,545 0 View

EcoRV resistance E. coli?

Greetings I am working with a plasmid encoding the restriction enzyme EcoRV. Do you know of E. coli strain resistance to EcoRV restriction?

06 January 2024 8,223 4 View

"Tryptone" peptide ans casamino acids - are they phosphorylated?

Greetings all. As you probably know the "Tryptone" used as component of LB media and alike are the product of digestion of casein. Similarly Cas-Amino acids are the product of acidic hydrolysis of...

09 January 2022 2,002 1 View

Help in using MG-RAST database ?

Greetings all I am looking for a way to search for specific gene(s) expression levels in an environmental transcriptome data posted on MG-RAST. If anyone has expertise in doing such it would be...

09 May 2020 2,581 0 View

Comercial "stratum corneum substitute" lipid mixture?

Greetings We want to look at the effect of Stratum Corneum composition on bacterial attachment. Does anyone know a commercially available "stratum corneum substitute" lipid mixture? Or is willing...

17 November 2019 1,539 2 View

Extraction of Heme A, Heme B and Heme O?

Greetings I am looking for a trusted protocol for extraction of Heme A, Heme B and Heme O, to be used as standards in HPLC analysis. Alternatively if you know of a commercial source also...

27 May 2019 5,398 2 View

Origin of 220nm absorbance peak of free amino acids?

Greetings I am trying to find out what is the origin of the 220nm absorbance peak of free amino acids? It is usually attributed to peptide bond but I find it also in single aa... Yoram

17 June 2018 5,773 3 View

Energetic cost of biomass pretreatment (especialy steam explosion)?

Greetings I’m looking for numbers (rather then general statments) on the energetic cost of different biomass pretreatments before enzyme digestion for sugar release. I am especialy intrested in...

28 January 2018 5,810 5 View

Can I connect HP1047A RI detector to Agilent 1200 HPLC system?

Greetings We need to buy an RI detector for our Agilent 1200 HPLC system (connected to a computer running ChemStation). Given the high price of new detector I thought about buying a used one....

19 October 2017 6,463 9 View

Microwave transperment 3D resin?

Greetings We need to create a 3D structure that will be used inside a microwave (and will contain plant biomass suspended in water). What polymer (e.g. ABS, nylon, other) would be microwave...

16 May 2017 5,216 2 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 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

Can a Conventional 50W visible LED Lamp Emit UV Light?

I'm researching light sources and their UV emissions. I'm curious if a 50W, 7500K conventional LED lamp emits any UV light. I found that a 200W tungsten lamp can emit up to 1.5 mW/cm² at 350 nm....

31 July 2024 3,843 7 View

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM images?

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM or SEM images?

25 July 2024 5,482 2 View

How large is the black distance noted with a question mark?

How far is the distance with question marks on it? There is a river, where you measure at the point out to the right and there is a low screen. The river is green, what is visible is within the...

24 July 2024 4,405 1 View

What is the future scope of acoustic emission?

17 July 2024 1,510 1 View

Why is linearity somewhat lost when plotting the Stern-Volmer (SV) graph?

When preparing a graph of fluorophore intensity vs. analyte concentration, the linearity shows an R² of 0.999. However, when plotting the same data as Fo/F vs. analyte concentration, the linearity...

13 July 2024 7,131 0 View

How to improve my plaque assay for influenza virus?

I used MDCK cells for my plaque assay for influenza virus and seeded 950,000cells/well in 6-well two days before infection. The virus was diluted in FBS-free MEM with 0.5ug/ml TPCK-trypsin. Here...

11 July 2024 5,669 5 View

What is the correct way of calculating CO2 from private transportation and what is correct emission factor?

Hi, I have a question about emission factors for passenger cars based on the EMEP/EEA air pollutant emission inventory guidebook 2023, in the link that I used to calculate the CO2 emission per...

04 July 2024 1,766 2 View

How can we calculate the CO2eq from indirect emission of organic fertilizer production?

Do we have to use kg N or kg organic fertilizer multiply by emission factor of organic fertilizer production?

03 July 2024 7,701 3 View