6 Results for "

fluorescence dark quencher

" in MedChemExpress (MCE) Product Catalog:
Products (6)

6 Results for "fluorescence dark quencher" in MCE Product Catalog:

Cat. No.: HY-D2365
CAS No.: 304014-13-9
QSY 21 NHS is a dark quencher and an efficient energy transfer acceptor for far-red and near-infrared fluorescent probes. QSY 21 NHS operates at a wavelength range of 540-750 nm and is commonly used in FRET applications. QSY 21 NHS does not fluoresce under normal conditions. The NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides and other amine-containing molecules. QSY 21 NHS can be conjugated with dendritic poly-L-lysine to achieve intramolecular quenching of Cy5 fluorescence .
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Cat. No.: HY-42984
CAS No.: 916753-62-3
BHQ-2 NHS is a fluorescence dark quencher with an absorption spectrum spanning 550-650 nm that overlaps with tetramethylrhodamine (TMR) emission. BHQ-2 NHS quenches TMR fluorescence when conjugated to mesoporous silica nanoparticles. BHQ-2 NHS can be used for the research of cancer .
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Cat. No.: HY-D1682
CAS No.: 1262391-07-0
NFQ1 is a non-fluorescent quencher (absorption wavelength: 474 nm), and is used for a new type of One Sample Fluorescence Resonance Energy Transfer (OS-FRET) method. OS-FRET enable measurement of unquenched donor emission in the same sample. NFQ1 shows broad absorption spectrum ensuring its utility as a dark acceptor for many donors .
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Cat. No.: HY-D2579
Sulfo DBCO-UBQ-2 is a click chemistry reagent combining a dark quencher, UBQ-2, with a polyaromatic-azo backbone, offering no native emission. UBQ-2 effectively quenches fluorescence in the 560-670 nm range, ideal for qPCR probes and FRET applications with orange to far-red dyes .
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Cat. No.: HY-D3319
BHQ‑3 carboxylic acid is an azo‑containing dark fluorescence quencher. BHQ‑3 carboxylic acid is conjugated to an MMP‑cleavable peptide and paired with a fluorophore to form an activatable probe for MMP activity detection in vitro. BHQ‑3 carboxylic acid shows maximal absorption in the 620 to 730 nm range. BHQ‑3 carboxylic acid–based fluorescent probes can be used in the research of arthritis and tumor‑related pathological processes. .
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Cat. No.: HY-D3418
Target:  

Fluorescent Dye

Research Areas:  

Inflammation/Immunology

BOD-Tz-TMR is a fluorescent probe used for nitric oxide (NO) detection and atherosclerotic plaque imaging.BOD-Tz-TMR has a detection limit of 31 nM for NO. BOD-Tz-TMR functions via Förster resonance energy transfer (FRET) and bioorthogonal reactions, in which the tetrazine linker quenches fluorescence through the energy transfer to dark state (ETDS) mechanism. The interaction of BOD-Tz-TMR with NO triggers a ratiometric shift in fluorescence from BODIPY (Ex/Em: 488 nm/512 nm, green channel) to TMR (Em: 592 nm, red channel). BOD-Tz-TMR labels macrophages through a bioorthogonal reaction with BCN, enabling its targeted accumulation at atherosclerotic plaque sites to detect endogenous NO associated with lesion progression. BOD-Tz-TMR can be used in studies related to atherosclerosis .
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