Norgen’s FBS Exosome Depletion Kits provides a quick and easy protocol for the depletion of bovine exosomes from FBS prior to using it as a growth supplement in your culture medium. The FBS recovered from the depletion process is exosome-depleted and does not contain any quantifiable bovine miRNAs. Moreover, the exosome-depleted FBS will support the growth of your cells of interest similar to the non-depleted FBS. Norgen’s kits allow for the processing of different FBS volumes. The depletion is based on Norgen’s proprietary resin. These kits provide a clear advantage over other available kits in that they do not require ultracentrifugation, any special instrumentation, precipitation reagents or any protease treatments. More importantly, the depletion process is an inexpensive method for exosome depletion from FBS, as compared to the expensive current ready-to-use exosome-depleted media available on the market.
Background
Most culture medium used for the growth and propagation of cells in culture require the addition of fetal bovine serum (FBS) as a growth supplement to media. FBS is obtained from bovine (cow) serum, and therefore contains large quantities of bovine exosome vesicles. These exosomes may interfere with some types of studies, or may lead to unreliable results when studying the exosomes shed from your cells of interest in normal culture conditions. Therefore, the use of exosome-depleted FBS is highly recommended for many types of studies.
FBS Exosome Depletion Kit (Slurry Format)
For FBS volumes ranging from 140 mL to 280 mL.
FBS Exosome Depletion Kit (Column Format)
For FBS volumes ranging from 120 mL to 240 mL.
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| Kit Specifications | |
| Sample Type | Fetal Bovine Serum |
| Sample Volume Range | Up to 140 mL (FBS Exosome Depletion Kit I (Slurry Format) Up to 280 mL (FBS Exosome Depletion Kit II (Slurry Format) |
| Depletion | Deplete exosome-sized vesicle |
| Bovine miRNA | No detectable bovine miRNA |
| Time to Complete 6 Purifications | 40 minutes |
Storage Conditions and Product Stability
All buffers should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment.
| Component | Cat. 61100 (6 preps) | Cat. 61400 (12 preps) | Cat. 61200 (6 preps) | Cat. 61300 (12 preps) |
|---|---|---|---|---|
| ExoC Buffer | 2 x 1.5 mL | 8 mL | 2 x 1.5 mL | 8 mL |
| Slurry E | 12.5 mL | 2 x 12.5 mL | – | – |
| Maxi Spin Column | – | – | 6 | 12 |
| Product Insert | 1 | 1 | 1 | 1 |
Propargyl-PEG14-acid is an alkyne reagent with a carboxylic acid. The carboxylic acid can form amide bonds with amines under the activation of EDC or HATU. The alkyne group can react with azides through Click Chemistry reaction to form triazole linkage. The PEG spacer increases the solubility of the molecule in aqueous environment. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG14-acid is an alkyne reagent with a carboxylic acid. The carboxylic acid can form amide bonds with amines under the activation of EDC or HATU. The alkyne group can react with azides through Click Chemistry reaction to form triazole linkage. The PEG spacer increases the solubility of the molecule in aqueous environment. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Description
Champion™ E. coli Transformation Kit provides an easy method for rapid preparation of chemically competent cells with high transformation efficiency from fresh culture, overnight culture, or even directly from bacterial colonies on the plate. The competent cell preparation method eliminates the requirement of time-wasting wash step. In addition, preparation of competent cells from overnight culture or directly from bacterial colonies provides flexibility to cloning experiment. The resultant competent cells can be immediately used or stored at -70°C for one year. This kit includes a specialized SMO-Broth™ medium and a unique Champion™ CC Buffer for culturing and preparing competent cells efficiently. Following the simple and quick competent cell preparation protocol from fresh culture, the transformation efficiency is typically ranged from 108–109 cfu/μg transformants/μg of pUC19 plasmid DNA, but varies depending on the E. coli strains. The resultant competent cells can be further transformed using time-saving transformation protocol, eliminating the requirement of heat-shock and recovery steps.
Features
Kit Contents
| Component | Volume | |||||
| Champion™ CC Buffer | 20 ml | |||||
| SMO-Broth™ | 100 ml x 2 | |||||
| pUC19 Control Plasmid (10-4 μg/μl) | 5 µl | |||||
| Instruction Manual | 1 | |||||
| Champion™ Competent Cell Preparation Card | 1 |
Storage
4°C for 12 months
Champion™ E. coli Transformation Kit provides an easy method for rapid preparation of chemically competent cells with high transformation efficiency from fresh culture, overnight culture, or even directly from bacterial colonies on the plate. The competent cell preparation method eliminates the requirement of time-wasting wash step. In addition, preparation of competent cells from overnight culture or directly from bacterial colonies provides flexibility to cloning experiment. The resultant competent cells can be immediately used or stored at -70°C for one year. This kit includes a specialized SMO-Broth™ medium and a unique Champion™ CC Buffer for culturing and preparing competent cells efficiently. Following the simple and quick competent cell preparation protocol from fresh culture, the transformation efficiency is typically ranged from 108–109 cfu/μg transformants/μg of pUC19 plasmid DNA, but varies depending on the E. coli strains. The resultant competent cells can be further transformed using time-saving transformation protocol, eliminating the requirement of heat-shock and recovery steps.