Introducing a Western Blotting Substrate that is Chemiluminescent and Chemifluorescent
Detect your target by film, CCD cameras or laser-based imagers
by Thermo Scientific Pierce Protein Biology Team - 06/01/11
The Thermo Scientific Pierce ECL Plus Substrate is a chemiluminescent and chemifluorescent peroxidase substrate for western blotting. The Pierce ECL Plus Substrate generates acridinium esters when it reacts with horseradish peroxidase (HRP), producing a strong signal that is equal to or better than similar commercially available substrates (Figure 1). The ester intermediates react with peroxide and produce a strong and sustained chemiluminescent signal that can be captured by X-ray film or a CCD camera. A robust fluorescent signal is also produced, which can be captured with fluorescence imagers (Figure 2).
Figure 2. One substrate detected by three methods. Blots were prepared as described in Figure 1. The target was detected with rabbit anti-MAP kinase (EMD Millipore) diluted 1:1000, goat anti-rabbit HRP (Part No. 31460) at 6.6ng/mL and Pierce ECL Plus Substrate. The membranes were exposed to CL-XPosure Film for five seconds and scanned using the Typhoon* 9410 Variable Mode Imager (excitation at 457nm, emission at 510nm) and Syngene* G:Box iChemiXT Imager (1 minute exposure).
Pierce ECL Plus Substrate enables detection of low-picogram amounts of target protein (Figure 3) on nitrocellulose and PVDF membranes when probed with the appropriate primary and secondary antibody concentrations. This versatile and reliable western blotting substrate has a broad dynamic range and excellent sensitivity combined with a long-lasting signal (Figure 4).
Thermo Scientific Pierce ECL Plus Substrate is an acridan-based chemiluminescent and chemifluorescent HRP substrate for Western blot detection using X-ray film or CCD- or laser-based imagers. This product is sold as Pierce ECL 2 Substrate (Cat. #PI80196) through Fisher Scientific and other channels.
Features of ECL Plus Substrate:
- Easy to use—can be substituted for the discontinued GE ECL Plus Substrate without any re-optimization
- Higher sensitivity—detect targets down to the low-picogram level
- Longer signal duration—sustained light output for as long as 5 hours
- More imaging options—X-ray, CCD or laser-based imagers
- More affordable—high quality and performance at a lower price than other suppliers' similar substrates
Learn more about Thermo Scientific Pierce ECL Plus Substrate