endo-BCN-PEG2-PFP ester is a click chemistry active ester. The PFP esters have similar applications as the NHS esters, but are more stable in aqueous solution. They can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
endo-BCN-PEG2-PFP ester is a click chemistry active ester. The PFP esters have similar applications as the NHS esters, but are more stable in aqueous solution. They can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG24-amine is a linker with 24 PEG units. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl group is reactive with azide compounds under the catalyzation of copper. This linker has pretty good water-solubility due to its long PEG chain. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG24-amine is a linker with 24 PEG units. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl group is reactive with azide compounds under the catalyzation of copper. This linker has pretty good water-solubility due to its long PEG chain. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Usages:
For cultivations of yeasts , moulds and acidophilic bacteria.
Principle:
Peptone and yeast extract powder provides carbon and nitrogen sources and trace elements; lactose are fermentable sugars; sodium chloride maintains osmotic equilibrium; the 3rd bile salts and crystal violet inhibiting gram-positive bacteria, especially against Gram positive bacteria and fecal streptococci; neutral red as pH indicator.
Formulation(per liter):
Peptone 5g
Tryptone 5g
Glucose 20g
Final pH 5.7 ± 0.1
How to use:
1.Suspend 30g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, 121 autoclave for 15min.
2.Diluted and treated samples.
Quality control:
| Item | The name and number of strain | Growth | Colony Color |
| 1 | Aspergillus niger ATCC16404 | Good | Spore surface growth |
| 2 | Candida albicans ATCC10231 | Good | Cloudy broth |
| 3 | Escherichia coli ATCC25922 | Inhibition | — |
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
500g
Attogene’s Mercury Lateral Flow Kit can be used for the screening of Mercury in water samples at 10 ppb in the field.
Mercury contamination is a serious worldwide environmental problem. As it is difficult to detoxify by chemical or biological methods, gradual Mercury ion accumulation in the nervous and cardiovascular systems of the human body can subsequently cause serious diseases. Long-term health consequences of drinking Mercury-contaminated food and water include brain, heart, kidney, lungs and immune system problems for adults, and the physical and mental development delays in infants and children. Attogene’s Mercury Lateral Flow test gives results conforming of 10ppb or greater. Using the supplied pipette, simply fill the vial with your water sample, place the water into the sample port and wait 5 minutes.
Applications for Fish and Shellfish possible:
Mercury Levels in Commercial Fish and Shellfish (1990-2012)
Samples requiring regulatory action should be confirmed.
Screening of Mercury in water samples at 10 ppb
Format: 10 tests (5 tests/5 controls)
Run Time: 5 Minutes
