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Standard-value, reference solutions designed for the exact calibration of spectrometers; standards guarantee that machines function properly for accurate spectral lines.
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If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link: eMolecules Building Block Tool<|a>
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More
Small and Specialty Supplier Partner Small and/or specialty supplier based on Federal laws and SBA requirements. Learn More
Annexin V is a Ca2 -dependent phospholipid-binding protein that specifically binds phosphatidylserine (PS) PS is normally located on the inner leaflet of the cell membrane lipid bilayer but flips from the inner to the outer leaflet during the early stages of apoptosis becoming exposed to the extracellular environment Annexin V has a high affinity for PS By conjugating Annexin V with Cy3 the labeled Annexin V serves as a fluorescent probe enabling detection of apoptosis events via flow cytometry or fluorescence microscopy within only 10 20 minutes staining SYTOX Green is a membrane-impermeable cyanine dye that normally cannot penetrate intact cell membranes However during late-stage apoptosis or necrosis SYTOX Green can cross disrupted regions of the cell membrane reach the nucleus and bind DNA double helix molecules forming SYTOX Green-DNA complexes Binding increases fluorescence intensity over 500-fold generating bright green fluorescence Thus SYTOX Green stains o
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More
Small and Specialty Supplier Partner Small and/or specialty supplier based on Federal laws and SBA requirements. Learn More
Annexin V is a calcium-dependent phospholipid-binding protein that specifically binds phosphatidylserine (PS) Normally PS is localized to the inner leaflet of the cell membrane lipid bilayer but during early stages of apoptosis PS flips from the inner leaflet to the outer surface of the plasma membrane where it is exposed to the extracellular environment Annexin V displays a high affinity for PS Fluorescein (FITC)-conjugated Annexin V can be used as a fluorescent probe in flow cytometry or fluorescent microscopy to detect apoptosis within 10-20 minutes The nuclear dye 7-Aminoactinomycin D (7-AAD) specifically binds to double-stranded DNA and fluoresces upon binding Under normal circumstances 7-AAD is cell-impermeable however in late apoptotic and dead cells 7-AAD can pass through cell membranes staining DNA Combining Annexin V-FITC with 7-AAD staining cells at different stages of apoptosis and dead cells can be distinguished effectively
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More