endo-BCN-PEG4-Boc-amine is a PEG linker containing a BCN group and a Boc-protected amine. The protected amine can be deprotected under mild acidic conditions. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
endo-BCN-PEG4-Boc-amine is a PEG linker containing a BCN group and a Boc-protected amine. The protected amine can be deprotected under mild acidic conditions. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Usages:
For selective enrichment of Salmonella.
Principle:
Peptone provide carbon and nitrogen sources to meet the needs of bacterial growth; lactose are fermentable sugars; selenite, sodium hydrogen inhibit Gram-positive bacteria and gram-negative enterobacteria most non-Salmonella; phosphate-buffered agent; L- cystine as a reducing agent.
Formulation(per liter):
Peptone: 5g
Lactose :4g
Sodium selenite: 4g
Disodium hydrogen phosphate: 10g
L- cystine: 0.01g
Final pH 7.0 ± 0.2
How to use:
1. Weigh 23g of the product , adding 1 L of distilled or deionized water , heated to boiling stirring until completely dissolved, dispensing flask, cooled to room temperature .
2. Pipette 10mL of pre-enrichment sample broth or 25mL and transferred species in the liquid sample flask in a sterile environment.
3.Place into incubator, cultured at 36 ± 1 for 18-24h.
4. Observe the results.
Quality control:
Quality control strains were inoculated ,and cultured at 36 ± 1 for 18-24h ,results show as follows:
strain name strain code growth feature
Salmonella typhi CMCC (B) 50071 good red, cloudy
Salmonella typhimurium CMCC (B) 50115 good red, cloudy
Escherichia coli ATCC25922 — remain unchanged
Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.
500g
Attogene’s Organophosphate detection kit is in designed specifically to detect Organophosphate in liquid samples.
Organophosphate compounds (OP) account for the largest class of rural and urban poisons in the world that are used to kill pests but can also be toxic to humans. OPs cause toxicity by means of blocking the acetylcholinesterase enzyme (AchE). The AChE-directed OPs react with a serine residue that is located at the catalytic site found within the AChE gorge. The OP targeted enzyme is no longer able to hydrolyze ACh, resulting in the buildup of ACh in the nerve synapse. This effect causes excessive excitation of the nerves, producing uncoordinated movements, tremors, paralysis and death. Both synthetic and natural(Guanitoxin) organophosphates are dangerous to humans — exposure can lead to visual, coordination, muscular, and neurological deficiencies, and in some cases even to death. In turn, exposure to OP is a significant public health concern which would significantly benefit from an improved detection platform.
Attogene’s Organophosphate detection kit is in designed specifically to detect Organophosphate in liquid samples. For solid samples a simple sample preparation method is performed. The ability to detect Organophosphate is performed is simple and sensitive. The reaction uses a chromophore that can be detected by eye. In the presence of Organophosphate, the rate of chromophore production is reduced in a concentration dependent fashion. The higher the concentration of Organophosphate the less color is produced.
Attogene’s Organophosphate detection kit is in designed specifically to detect Organophosphate in liquid samples.
DNase activity in a convenient and sensitive lateral flow colormetric assay that delivers results in real time. Great for Quality Testing for DNase contamination of materials and supplies.
Attogene’s DNaseAlarm Lateral Flow test is designed for the sensitive and accurate analysis of DNAse activity in liquid samples. DNase Alarm uses a synthetic DNA substrate that attaches to the streptavidin colloidal reporter molecule (gold) using a 5’ biotin. The DNA substrate also contains a FAM molecule that enables it to be captured by the anti-FAM antibody (test line). In the absence of DNases, the DNA oligo tethers gold to the test line giving a visual test line. When DNases are present, the DNA substrate is degraded, and the gold particles can no longer be tethered to the test line thus, signal is lost. Since the cleavage of the DNA Substrate increases over time when DNase activity is present, results can be evaluated kinetically. This assay has applications for quality control testing and analysis of unit activities of DNase and DNase inhibitors. DNase’s can cause havoc in laboratories working with DNA and are important to perform routine testing.
This test can be used to rapidly and efficiently detect DNase’s in both liquid and on solid surfaces and a perfect tool for monitoring manufacturing.
DNase activity in a convenient and sensitive lateral flow colormetric assay that delivers results in real time. Great for Quality Testing for DNase contamination of materials and supplies
