DBCO-PEG24-NHS ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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DBCO-PEG24-NHS ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Streptavidin R-Phycoerythrin For Lateral Flow
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R-RPE is manufactured from a red algae
Protein based fluorescent particles specifically desinged for lateral flow applications
Highly absorptive fluorescent molecule with excellent detectability
R-Phycoerthyrin (R-RPE) Streptavidin Conjugate designed for Lateral Flow
Our Streptavidin R-Phycoerythrin conjugates are manufactured from a red algae and the first of its kind protein based fluorescent particles specifically desinged for lateral flow applications. R-RPE is a highly absorptive fluorescent molecule that has excellent detectability. It is the fluorochrome of choice when the brightest signal is needed and is therefore used most often when high sensitivity is essential for detectability and/or accuracy.
Consistent lot-to-lot performance resulting from continuous culture of source organisms and high purity. – Very high water solubility – Homogeneous structure with defined molecular weights – Total control on growth conditions and nutrition, which avoids contamination from extraneous organisms and waste found in the open ocean. Proteins are harvested at the optimal stage of the growth cycle to assure uniform product characteristics. The pigment is extracted and stabilized within minutes of harvest, virtually eliminating risks from the action of proteases.
250ul stock ready to use for lateral flow
50mL lateral flow running buffer designed for Streptavidin R-Phycoerythrin particles
Excitation max: 566nm
Emission max: 575nm
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R-RPE is manufactured from a red algae
Protein based fluorescent particles specifically desinged for lateral flow applications
Highly absorptive fluorescent molecule with excellent detectability
Escherichia coli is one of many species of bacteria living in the lower intestines of mammals, known as gut flora. When located in the large intestine, it assists with waste processing, vitamin K production, and food absorption. Discovered in 1885 by Theodor Escherich, a German pediatrician and bacteriologist, E. coli are abundant: the number of individual E. coli bacteria in the faeces that a human defecates in one day averages between 100 billion and 10 trillion. However, the bacteria are not confined to the environment, and specimens have also been located, for example, on the edge of hot springs. The E. coli strain O157:H7 is one of hundreds of strains of the bacterium that causes illness in humans.
E. coli are unable to sporulate. Thus, treatments which kill all active bacteria, such as pasteurization or simple boiling, are effective for their eradication, without requiring the more rigorous sterilization which also deactivates spores. As a result of their adaptation to mammalian intestines, E. coli grow best in vivo or at the higher temperatures characteristic of such an environment, rather than the cooler temperatures found in soil and other environments.
The enteric E. coli (EC) are divided on the basis of virulence properties into enterotoxigenic (ETEC – causative agent of diarrhea in humans, pigs, sheep, goats, cattle, dogs, and horses), enteropathogenic (EPEC – causative agent of diarrhea in humans, rabbits, dogs, cats and horses); enteroinvasive (EIEC – found only in humans), verotoxigenic (VTEC – found in pigs, cattle, dogs and cats); enterohaemorrhagic (EHEC – found in humans, cattle, and goats, attacking porcine strains that colonize the gut in a manner similar to human EPEC strains) and enteroaggregative E. coli (EAggEC – found only in humans).
E. coli O157:H7 was first recognized as a pathogen as a result of an outbreak of unusual gastrointestinal illness in 1982. The outbreak was traced to contaminated hamburgers, and the illness was similar to other incidents in the United States and Japan. The etiologic agent of the illness was identified as a rare O157:H7 serotype of Escherichia coli in 1983. This serotype had only been isolated once before, from a sick patient in 1975.
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Exceptional value for money
Rapid detection of all clinically relevant subtypes
Positive copy number standard curve for quantification
Highly specific detection profile
High priming efficiency
Broad dynamic detection range (>6 logs)
Sensitive to < 100 copies of target
Accurate controls to confirm findings
Amine-PEG4-Amide-Tri(3-methoxypropanamide-PEG10-Propargyl) Methane HCl salt
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Amine-PEG4-Amide-Tri(3-methoxypropanamide-PEG10-Propargyl) Methane HCl salt is a crosslinker consisting of an amino group with three propargyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde), etc. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. Reagent grade, for research use only.
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Amine-PEG4-Amide-Tri(3-methoxypropanamide-PEG10-Propargyl) Methane HCl salt is a crosslinker consisting of an amino group with three propargyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde), etc. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. Reagent grade, for research use only.
