Tuesday, April 26, 2016

ELISA Blocking Buffers

Paramount to Reducing Background Noise and Attaining an Accurate Signal

Once the antibody or protein antigens have been properly adsorbed onto the ELISA/EIA plate, the next critical step in creating a reliable immunoassay is the blocking of the plate. This key is:

  • Preventing nonspecific binding 
  • Reducing ELISA background signal 
  • Blocking nonspecific binding to adsorbed proteins 
  • Stabilizing proteins adsorbed to plate for better interactions 

Neuromics's ELISA Blocking Buffer formulations reduce nonspecific binding of sample and assay components to the ELISA well while stabilizing the coated protein. Six formulations offer significant benefits to different assay situations. Browse the product selections below, or order our Blocking Buffer Optimization Pack to try three formulations at an economical rate.

Friday, April 15, 2016

Isolating and Selecting T-Cells

Save 100 USD on New Kits

We are pleased to announce the addition of our New T-Cell Isolation/Selection Kits. They are fast and easy. Check out the Short Protocol.

Figure CD4+ T-Cell Isolation Process doi:10.1371/journal.pone.0035798.

We also have T-Cell Expansion Kits!
NameCatalog #TypeSpeciesApplicationsSizePrice
StrepMan Magnet for 15ml and 50ml Tubes6-5650-065Cell Isolation-SeparationHCell Assays1 Magnet$400
CD3 Fab Streptamer Isolation Kit MB6-8000-201Cell Isolation-SeparationH1 Kit$699
CD4 Fab Streptamer Isolation Kit MB6-8000-206Cell Isolation-SeparationH1 Kit$699
CD8 Fab Streptamer Isolation Kit MB6-8000-203Cell Isolation-SeparationH1 Kit$699
CD25 Fab Streptamer Isolation Kit MB6-8000-207Cell Isolation-SeparationH1 Kit$699
We'll be adding more and more kits in the coming months and will keep you posted.

Saturday, April 02, 2016

Magic Red and Cancer Research

Measure Apoptosis in Real Time in Cancer Cells

Magic Red™ (MR) Kits measure apoptosis via active caspases and cathepsins in whole living, intact cells - no lysis required. As apoptosis progresses and caspase activity increases, the red fluorescent signal increases.

In this example, Magic Red is used to measure apoptosis in HeLa Cells after treatment with Artesunate (ART), an anti-malarial drug and potential chemotherapy agent.

Figure: ART activates lysosomal function. A, HeLa cells were first treated with ART (50 μM) for 12 h, followed by LTR labeling for 30 min, and further analyzed using confocal microscopy. B, HeLa cells were loaded with LTR following time course drug treatment, and fluorescence intensity of 10,000 cells/sample was measured by flow cytometry. C, HeLa cells were treated as indicated in A and then incubated with Magic Red cathepsin L and LTG for 30 min and observed under a confocal microscope. D, HepG2 cells were treated as in A and then labeled with LTR described earlier in A. E, HepG2 cells were treated as in A, followed by a Magic Red cathepsin B and L assay for 45 min. Fluorescence intensity of 10,000 cells/sample was measured using flow cytometry. F, HeLa cells were first loaded with DQ Red BSA for 1 h and then treated with ART (50 μM) for 18 h and incubated with LTG for 30 min. G, HeLa cells were treated with ART for 18 h and then immunostained for LAMP1. H, LAMP1 signals of 80 cells from three independent experiments were quantified by ImageJ (Student's t test, #, no significance). I, HeLa cells were treated with ART for the indicated time, and then Western blot was performed to detect the LAMP1 protein level. Scale bar, 10 μm. Error bars, S.D. doi: 10.1074/jbc.M114.564567

We have a variety of Apoptosis Kits for testing potential Chemotherapeutic Agents.