Customers' Q&A

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Customers' Q&A

Conjugation of antibodies with DBCO and downstream copper free Click chemistry reaction

Copper free Click Chemistry conjugation guidelines, considerations, reaction scheme.

Updated 6 days ago

Do the sulfated groups in Cyanine dyes stand up to the rigors of the trifluoroacetic acid cleavage step of the peptide from the resin?

Stability of sulfonated Cyanine dyes in concentrated trifluoroacetic acid (TFA) during solid phase peptide synthesis (SPPS).

Updated 6 days ago

I’ve been using your cyanine7.5 amine to label some of my polymers but I can’t seem to get any signal when I test the fluorescence on the fluorometer.

Possible reasons why you don't see any fluorescence signal from conjugates or the dye alone or in different solvent systems.

Updated 15 days ago

We attempted to attach Sulfo-Cy7-NHS ester to modified triphosphate, but the resultant product had really low fluorescence.

Low fluorescence of Sulfo-Cyanine7 conjugated to triphosphate measured by Agilent 1260 Infinity Fluorescence Detector.

Updated 15 days ago

What is the solubility of Cyanine7.5 amine in water?

Water solubility of Cyanine7.5 amine product.

Updated 3 months ago

What is the solubility of BDP FL Hydrazide in water?

Water solubility of BDP FL Hydrazide dye in water

Updated 4 months ago

Does the fluorescence of cyanine dyes depend on pH?

The fluorescence dependency of cyanine dyes such as Cyanine3, Sulfo-Cyanine3, Cyanine5, Sulfo-Cyanine5 and boron-dipyrromethene dyes such as BDP TMR, BDP 630/650 on pH conditions.

Updated 4 months ago

Are Cyanine dyes stable in 0.1-0.5% bleach solution?

Stability of Cyanine dyes in bleach solution

Updated 4 months ago

Staining proteins with ProteOrange in polyacrylamide gels.

Step-by-step instruction on staining proteins with ProteOrange from Lumiprobe in polyacrylamide gels.

Updated 5 months ago

Do you have a protocol for labeling of proteins with hydrazide-based dyes?

Brief protocol for protein labeling using hydrazide funtionalized dyes.

Updated 6 months ago

What is solubility of Sulfo-Cyanine7 amine and Cyanine7 amine in water?

Water solubility of Cy7 amine derivatives

Updated 6 months ago

A guide for visualization of gels stained with dsGreen using Gel Doc™ EZ System.

Detailed step-by-step guidance on how to use Gel Doc™ EZ System by Bio-Rad for visualization of gels stained with dsGreen or SYBR® Green.

Updated 6 months ago

Why Cyanine dyes have low quantum yields, but still widely used?

Quantum yield of Cyanine dyes

Updated 7 months ago

I would like to label tyramine molecule with fluorescent dye, is it possible?

The protocol for labeling of tyramine with NHS ester functionalized Cyanine dye for use in tyramide signal amplification.

Updated 7 months ago

BDP 581/591 dye for detection and monitoring of cellular oxidative stress

BDP 581/591 dye for detection of reactive oxygen species (ROS) in cultured mammalian cells by flow cytometry

Updated 8 months ago

How to perform DNA Electrophoresis in Agarose Gel and stain the Gel with dsGreen?

Step By Step description how to prepare Agarose gel and to use dsDNA binding dye like dsGreen or SYBR Green for DNA detection by gel soaking.

Updated 8 months ago

Quantitative real-time PCR with dsGreen?

Advantages of using dsGreen dye in qPCR and comparison with other fluorescent dyes: EvaGreen® dye and TaqMan® probes.

Updated 11 months ago

Does nonspecific protein labeling exist in Click Chemistry reactions?

A comparison of nonspecific interactions in different Click chemistry reactions, namely Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) and strain promoted alkyne-azide cycloaddition (spAAC).

Updated 11 months ago

How to get a fluorescent derivative of biomolecule using dye hydrazide?

This article provides detailed protocol for labeling of hyaluronic acid and antibody through periodate oxidation using Cyanine5 hydrazide.

Updated 11 months ago

Can I stain proteins in fixed cells with ProteOrange dye?

Short description of Protein staining experience with ProteOrange dye from Lumiprobe.

Updated 11 months ago

Is it possible to label dilute antibody with the ready kit?

Even when the concentration of Ab in the solution is below the recommended concentraiton of 1 mg/mL, it is still possible to use Lumiprobe antibody labeling kit to achieve labeling degree of 2-3 dye molecules per Ab.

Updated 1 year ago