I am looking for a commercially available fluorescent molecule which is uncharged
Is there a specific application or emission wavelength you are looking for?
Laser dye companies (like http://www.exciton.com/) will have selections of different types and wavelengths of emissive dyes available.
Antracene, pyrene, coumarin, fluorescein and their derivatives are few of many commercially available uncharged fluorescent molecule. https://omlc.org/spectra/PhotochemCAD/
there are many
depends on what you want to use if for and spectral properties
check here for available dyes
http://www.fluorophores.tugraz.at/substance/
In general white opaque plates are recommended for luminescence, transparent for absorbance and black for fluorescence assays respectively. My question is if we can use black bottom plates for...
08 September 2019 5,751 4 View
I have to co-culture cancer cells with normal cells to check the efficacy to drugs target to cancer cells. In this regard, I am looking for a cell surface marker which can stain only cancer cells...
04 May 2019 7,244 1 View
I recently coated the 96 well plates with 0.1 % w/v (1:10) dilution of Poly-L-Lysine for seeding the HEK-293T cells. However, I found that the attachment of the cells to the surface is not...
04 May 2019 6,056 2 View
I have to perform fluorescence based assays in 96-well plate using HEK-293 cells. The experimental procedure involves transfection in cells and then treatment with drugs for testing drug efficacy....
04 May 2019 4,877 10 View
Hi, I wanted to know how much percentage of proteases constitutes in an enzyme family
03 April 2019 2,476 3 View
Enzymes are synthesised as zymogens and then make a transition to active form when required, is this true for every enzyme or are there any exceptions to that?
02 March 2019 1,388 4 View
I have expressed EGFP-N1 plasmid (1ug) in MCF-7 cells. Upon taking the confocal images under 40x oil I have seen the expression all over the cell? What is the possible reason for that? Can anyone...
01 February 2019 2,337 6 View
Why some cell lines are easy to transfect and some hard to transfect?
31 December 2018 9,414 3 View
Transfection efficiency depends on a lot of factors among which the ''the cell line type'' is one of them? In general, which cell line shows maximum transfection efficiency and how much?
31 December 2018 3,338 6 View
I have a vector pET23b with monomeric EGFP-6X His tagged cloned in that. The plasmid is transformed in BL21(DE3) cells. Kindly suggest me some good literature for the purification of the GFP-His...
31 December 2018 309 4 View
Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !
02 March 2021 5,785 3 View
Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...
01 March 2021 1,843 2 View
I am growing the cells on coverslips and transfecting the fluorescent tagged protein directly on them. Then i want to observe these cells under confocal microscope. Currently i am just using...
01 March 2021 6,142 3 View
Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?
28 February 2021 3,653 4 View
Hi, all! I need to determine if my treatment causes membrane damage in bacteria (S. aureus and E. cloacae), but I cannot use a fluorescent probe such as PI and similar ones because my compound is...
24 February 2021 2,006 2 View
As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...
23 February 2021 3,175 3 View
Is it possible to implement FBM in a commercial FEA software package, such as FEMLAB, COMSOL, or open source software like Moose?
22 February 2021 2,968 1 View
I am planning to perform a degranulation assay using CD107a antibody. Some resources suggest to use inhibitors like monensin to inhibit the intracellular traficking and acidification of the...
21 February 2021 6,260 3 View
I'm developing a UHPLC assay, and the fluorescent product is 2,3-dihydroxyquinoxaline. The reaction to produce this requires hydrochloric acid (about 1.2 M). Will storage in this acidic...
20 February 2021 5,820 4 View
Hello, i work with a spectrometer which only render the fluorescence emission spectrum. Until now i just found how to interpret an exitation- and emission spectrum together to generate deeper...
20 February 2021 1,291 3 View