1264 Results for "

Time-resolved fluorescence spectroscopy

" in MedChemExpress (MCE) Product Catalog:
Products (1264)

1264 Results for "Time-resolved fluorescence spectroscopy" in MCE Product Catalog:

7
7 Cited Publications
Cat. No.: HY-D1462
CAS No.: 147963-22-2
CellTracker Blue CMAC is a non-fluorescent cell membrane permeable dye. The chloromethyl groups of CellTracker Blue CMAC are enzymatically cleaved by intracellular glutathione (GSH) to generate a fluorescent product (blue fluorescence, Ex/Em: 360/460 nm). CellTracker Blue CMAC is suitable for long-term cell tracking (up to 72 hours) and cell proliferation studies, and can also quantify GSH levels .
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7
7 Cited Publications
Cat. No.: HY-133821
CAS No.: 142234-85-3
Purity:  97.83%
N-Methylmesoporphyrin IX (NMM), a widely used G-quadruplex DNA specific fluorescent binder, is an efficient probe for monitoring Aβ fibrillation. N-Methylmesoporphyrin IX is an in situ inhibitor and an ex situ monitor for Aβ amyloidogenesis both in vitro and in cells. N-Methylmesoporphyrin IX is sensitive to G-quadruplexes DNA but has no response to duplexes, triplexes and single-stranded forms DNA. N-Methylmesoporphyrin IX is nonfluorescent alone or in monomeric Aβ environments, but emits strong fluorescence through stacking with the Aβ assemblies .
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7
7 Cited Publications
Cat. No.: HY-W009756
CAS No.: 90-30-2
Target:  

Fluorescent Dye

Research Areas:  

Infection

N-Phenyl-1-naphthylamine is a dye that fluoresces strongly when bound to the inner phospholipid bilayer of Gram-negative bacteria. N-Phenyl-1-naphthylamine can be used to measure outer membrane permeability. N-Phenylnaphthalen-1-amine is a fluorescence probe for odorant-binding proteins (OBP) with a dissociation constant of 1.67 μM. N-Phenylnaphthalen-1-amine exhibits an excitation wavelength of 337 nM and an emission wavelength of 407 nM .
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7
7 Cited Publications
Cat. No.: HY-128868G
CAS No.: 60842-46-8
FITC-Dextran (MW 150000) is a fluorescent probe for fluorescein isothiocyanate (FITC) dextran (Ex=491 nm; Em=518 nm). FITC-Dextran (MW 150000) can be used as a marker to reveal heat shock-induced cell damage and to study the early and late stages of apoptosis. FITC-Dextran (MW 150000) can be used in perfusion studies in animals or in fluorescence microlymphography, to study processes that affect the permeability of the blood brain barrier (BBB) . FITC-Dextran (MW 150000) can be used as fluorescent probe to study cell permeability .
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6
6 Cited Publications
Cat. No.: HY-D0974
CAS No.: 3520-42-1
Synonyms: Acid Red 52; Kiton Red 620
Sulforhodamine B sodium salt is a fluorescent dye with uses spanning from laser-induced fluorescence (LIF) to the quantification of cellular proteins of cultured cells.
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6
6 Cited Publications
Cat. No.: HY-15627
CAS No.: 178481-68-0
Purity:  98.16%
Hoechst 33342 analog is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution .
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6
6 Cited Publications
Cat. No.: HY-117468
CAS No.: 2609-88-3
Purity:  98.00%
Target:  

Fluorescent Dye

Research Areas:  

Others

Lissamine rhodamine B is a red-fluorescent dye, it is a derivative of rhodamine. Lissamine rhodamine B can be used as a fluorescent probe to develop competitive aptamer fluorescence anisotropy/polarization (FA/FP) assays .
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6
6 Cited Publications
Cat. No.: HY-117695
CAS No.: 148757-94-2
Purity:  ≥95.0%
Synonyms: 6-Aminoquinolyl-N-hydroxysccinimidyl carbamate
AQC (6-Aminoquinolyl-N-hydroxysccinimidyl carbamate) is a reagent used for amino acid or protein sequence analysis by HPLC with fluorescence detection. AQC reacts with primary and secondary amino acids to yield fluorescent derivates, allowing amino acid detection at under-picomolar levels .
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6
6 Cited Publications
Cat. No.: HY-138226
CAS No.: 158757-84-7
Purity:  98.42%
BODIPY 558/568 C12 is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells . Maximum excitation/emission wavelength: 558/568 nm .
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5
5 Cited Publications
Cat. No.: HY-D1191
CAS No.: 2225748-05-8
SYBR Green I chloride is a highly sensitive fluorescent nucleic acid dye that binds specifically to the minor groove of double-stranded DNA or intercalates between base pairs. SYBR Green I chloride exhibits weak fluorescence in the unbound state but emits bright fluorescence upon binding, and it preferentially binds to large-fragment DNA and DNA with high G+C content. SYBR Green I chloride is suitable for real-time PCR technology; its fluorescence intensity correlates with the amount and size of amplification products, enabling accurate quantification of gene expression and discrimination of amplicons via melting curve analysis without additional post-processing. SYBR Green I chloride is widely used in preclinical in vitro nucleic acid detection .
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5
5 Cited Publications
Cat. No.: HY-D1431
ER-Tracker dye is a derivative of BODIPY series dyes coupled with Glibenclamide (HY-15206), highly selective binding to the endoplasmic reticulum, non-toxic to cells at low concentrations, this type of dye is an environmentally sensitive probe, and formaldehyde treatment can still retain part of the fluorescence, with high fluorescence life, good extinction coefficient and other characteristics. Glibenclamide is an atp-dependent K + channel blocker (Kir6, KATP) and CFTR Cl-channel blocker that binds in the endoplasmic reticulum. ER-Tracker is not suitable for staining cells after fixation. Ex/Em=587/615 nm .
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5
5 Cited Publications
Cat. No.: HY-D0093
CAS No.: 61926-22-5
Synonyms: EthD-1
Ethidium homodimer (EthD-1) is a high-affinity fluorescent nucleic acid dye commonly used to stain mammals, bacteria, yeast, and fungi. Ethidium homodimer binds to DNA or RNA, enhancing fluorescence more than 30 times. The Ethidium homodimer has a strong positive charge, so it cannot cross cell membranes and stain living cells; But the Ethidium homodimer can cross the disordered region of the dead cell membrane to reach the nucleus and embed the DNA double strand to produce red fluorescence. Therefore, Ethidium homodimer is a relatively sensitive nucleic acid stain that can accurately detect nucleic acids in solution or in decomposing cells. Ethidium homodimer binds DNA, Ex/Em=528/617 nm .
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5
5 Cited Publications
Cat. No.: HY-P1003
CAS No.: 169332-61-0
Target:  

Fluorescent Dye

Research Areas:  

Others

Ac-DEVD-AMC is a fluorescent substrate of caspase-3/caspase-7. When treating Ac-DEVD-AMC with cell lysate, Ac-DEVD-AMC releases amino-4-methylcoumarin (AMC) for fluorescence detection, with an excitation wavelength of 380 nm and an emission wavelength of 460 nm .
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5
5 Cited Publications
Cat. No.: HY-N2183
CAS No.: 18609-17-1
Synonyms: Quercetin 3-O-sophoroside
Baimaside (Quercetin 3-O-sophoroside) is a flavonoid cholinergic function modulator that binds to SARS-CoV-2-related targets. Baimaside regulates the expression of cholinergic system-related proteins and acetylcholine levels, improves scopolamine-induced learning and memory impairment, protects hippocampal neurons, inhibits pollen protein fluorescence, and protects pollen DNA. Its biosynthesis is regulated by multiple enzymes. Baimaside is completely absorbed in rats, undergoes phase Ⅱ metabolism and gut microbiota decomposition, and inhibits the invasion and proliferation of SARS-CoV-2 and its variants, making it suitable for research related to Alzheimer's disease and COVID-19 .
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4
4 Cited Publications
Cat. No.: HY-D1373
CAS No.: 156840-13-0
Synonyms: HBC 530
HBC (HBC 530) is a GFP fluorophore-like synthetic dye, with a structurally rigid electron acceptor and a strong electron donor. HBC has a low fluorescence background, and when combined with Pepper (RNA aptamer), HBC forms a tight complex and activates and emits bright fluorescence (Kd of ~3.5 nM). HBC emission peaks vary in different complexes and covers the spectrum from cyan to red. HBC can be used in the live cell imaging of RNA (Em/Ex = 530/485 nm) .
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4
4 Cited Publications
Cat. No.: HY-D0155
CAS No.: 288574-78-7
Zinpyr-1 is a zinc-responsive fluorescent indicator and a membrane-permeable metal-binding probe. Zinpyr-1 forms a complex with Mn 2+ ions and generates a fluorescence turn-on signal. Zinpyr-1 binds to free zinc ions in serum, enabling quantitative detection of free zinc concentration. Zinpyr-1 produces fluorescence signals reflecting the relative zinc concentration in plant root cells, localizes to specific layers of plant root cells, and can be used to support analyses related to plant zinc transporter mutations and homeostasis .
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4
4 Cited Publications
Cat. No.: HY-D2449
DQ-BSA-Red is a bovine serum albumin labeled with a red fluorescent dye that can be used to detect lysosomal activity. The excitation wavelength and emission wavelength of DQ-BSA-Red are 590 nm and 620 nm, respectively. The BSA molecule in DQ-BSA-Red is labeled with high concentration of red fluorescent dye in multiple sites, which shows high fluorescence self-inhibition. Once DQ-BSA-RED enters the lysosome, DQ-BSA is cleaved by lysosomal proteases, resulting in unquenched and released fluorescent fragments, emitting bright fluorescence. Inactivated lysosomes are unable to degrade the BSA protein and thus have a lower or even no fluorescent signal .
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4
4 Cited Publications
Cat. No.: HY-D0309
CAS No.: 989-38-8
Synonyms: Basic Red 1
Rhodamine dyes are membrane-permeable cationic fluorescent probes that specifically recognize mitochondrial membrane potentials, thereby attaching to mitochondria and producing bright fluorescence, and at certain concentrations, rhodamine dyes have low toxicity to cells, so they are commonly used to detect mitochondria in animal cells, plant cells, and microorganisms .
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4
4 Cited Publications
Cat. No.: HY-13963
CAS No.: 587841-73-4
Purity:  98.49%
ZCL278 is a selective Cdc42 inhibitor with Kds of 6.4 μM in fluorescence titration and 11.4 μM in surface plasmon resonance (SPR) measurement. ZCL278 is able to disrupt the Cdc42-ITSN interaction as well as GTP/GDP binding. ZCL278 has inhibitory effects on various enveloped viruses, but is ineffective against non-enveloped viruses. ZCL278 can be used for the studies of arsenic neurotoxicity and HER2-positive gastric cancer (GC) .
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4
4 Cited Publications
Cat. No.: HY-153006
CAS No.: 106070-31-9
Purity:  99.14%
Synonyms: DCFH2
Research Areas:  

Others

2,7-Dichlorodihydrofluorescein (DCFH2) is a non-fluorescent reactive oxygen species (ROS) probe with an excitation wavelength of 485-500 nm and an emission wavelength of 515-530 nm. 2,7-Dichlorodihydrofluorescein is first hydrolyzed by intracellular esterases and then oxidized by ROS to generate non-biomembrane-permeable, highly fluorescent 2,7-dichlorofluorescein (DCF). The fluorescence intensity of DCF is positively correlated with the ROS concentration. 2,7-Dichlorodihydrofluorescein can undergo oxidation reactions with a variety of ROS (such as ·OH, H2O2, ONOO -, etc.) and is used to quantitatively detect the level of oxidative stress inside and outside cells. It is suitable for oxidative stress analysis in in vitro cell models and in vivo targeted delivery (such as liver-targeted liposomes) .
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