N-(Boc-PEG3)-N-bis-(PEG3-Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is a crosslinker consisting of six propargyl groups and a t-Boc protected aminooxy group. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The protected amine can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research use only.
N-(Boc-PEG3)-N-bis-(PEG3-Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is a crosslinker consisting of six propargyl groups and a t-Boc protected aminooxy group. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The protected amine can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research use only.
Salmonella enterica has emerged as a significant foodborne pathogen that poses a serious public health problem. The symptoms of salmonellosis may include diarrhea, fever, vomiting, and abdominal cramps with elderly, new-born, and immunocompromised individuals the most susceptible. S. enterica is a facultatively anaerobic Gram-negative bacterium that could survive low temperatures and freezing. The majority of the 1.3 billion annual cases of Salmonella-caused human gastroenteritis result from ingestion of contaminated food products, such as raw or undercooked meat, seafood, and eggs, as well as raw or unpasteurized milk and dairy products. Salmonella infections are also contracted following consumption of fresh fruits or vegetables that have been contaminated by infected fertilizer.
Norgen’s Salmonella enterica Quantified Bacterial DNA Standard is prepared from cultured bacteria using Norgen’s sample preparation technology. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as a positive control or PCR quantification standard for Salmonella enterica.
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| Volume Provided | 250 µL |
| DNA Quantity | 2 x 104 copies per µL |
Storage Conditions
Upon receipt, store Norgen’s Salmonella enterica Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20oC or lower.
Product Details
Application:
DNA Nucleic Acid
Format:
NFO Kit
Kit Components:
Reagents,Buffer,Enzymes
Manufacturer:
Amp-future Bio
Product Name:
DNA Isothermal Rapid Amplification Kit (Colloidal Gold Test Strip Type)
Reaction Time:
5-20mins
Reaction Volume:
50μL
Sensitivity:
500-1000copies/ml
Shelf Life:
14 Months
Specificity:
High
Storage Conditions:
-20℃
Suitability:
Universal
High Light:
,
,
Payment & Shipping Terms
Minimum Order Quantity
48T
Price
USD$3.8/T
Packaging Details
16T/Bag,48T/Box
Delivery Time
6 working days
Payment Terms
T/T, MoneyGram
Supply Ability
100000T/Month
Product Description
【Principle Overview】
This kit is based on a rapid nucleic acid amplification technology at room temperature and constant temperature: at room temperature and constant temperature (generally 39℃~42℃), with the help of auxiliary proteins and single-strand binding proteins, the recombinase and primers form a complex; Source search and combine the target homology domain, at this time, a D-loop region is formed at the homology position and strand exchange begins; along with the dissociation of the recombinase from the complex, the polymerase also binds to the 3′ end of the primer and begins chain extension. Relying on the action of nfo enzyme, adding specific molecular probes designed according to the template, and using colloidal gold technology (sandwich method) can detect the final result.
【Primer design】
It is recommended to use primers with a length of 30-35 bp.Too short primers will affect the amplification speed and detection sensitivity;the 5′ end of the reverse primer is labeled with a modification group (commonly used biotin).
Primers are designed to avoid the formation of secondary structures that affect amplification; the length of the amplicon is recommended to be 150-500bp.
【Colloidal gold probe design】
In the middle of the forward and reverse primer,design a sequence of 46-52nt in length that is complementary to the target fragment; modify an antigen marker (typical FAM) at the 5′ end;mark a dSpacer (tetrahydrofuran, THF) in the middle of the 5′ end and the 3′ end ), as the recognition site of nfo;the 3′ end is labeled with a modification group, such as amine group, phosphate group or C3-Spacer, etc.
【Features】
This kit has the advantages of high sensitivity, strong specificity,and short reaction time (only 15 minutes),and the reaction components are in dry powder state,which is easy to operate and easy to store.
This reagent has low equipment requirement,and the reaction operation can be carried out in metal baths, water baths, etc.,and there is no need to purchase expensive exclusive equipment such as PCR amplifiers.
| Composition | Content |
| A buffer | 1.6mL×1Tube |
| B buffer | 150μL×1Tube |
| Positive control template-II | 100μL×1Tube |
| Positive control probe and primer mix-II | 70μL×1Tube |
| Reagent | 48 T |
| Guide Manual | 1 Copy |
【Kit storage】
1. Storage conditions: storage temperature ≤ -20℃constant temperature environment, keep away from light and avoid heavy pressure;
2. Product validity period: 14 months;
3. See the outer packaging for the production date.
This kit is based on a rapid nucleic acid amplification technology at room temperature and constant temperature: at room temperature and constant temperature (generally 39℃~42℃), with the help of auxiliary proteins and single-strand binding proteins, the recombinase and primers form a complex; Source search and combine the target homology domain, at this time, a D-loop region is formed at the homology position and strand exchange begins; along with the dissociation of the recombinase from the complex, the polymerase also binds to the 3′ end of the primer and begins chain extension. Relying on the action of nfo enzyme, adding specific molecular probes designed according to the template, and using colloidal gold technology (sandwich method) can detect the final result.
Norgen’s Total RNA Purification Maxi Kit provides a rapid method for the isolation and purification of total RNA from cultured animal cells, tissue samples, blood, bacteria, yeast, fungi, plants, and viruses. The kit purifies all sizes of RNA, from large mRNA and ribosomal RNA down to microRNA (miRNA) and small interfering RNA (siRNA). The RNA is preferentially purified from other cellular components such as proteins, without the use of phenol or chloroform. The purified RNA is of the highest integrity, and can be used in a number of downstream applications including real-time PCR, reverse transcription PCR, Northern blotting, RNase protection and primer extension, and expression array assays.
Norgen’s Purification Technology
Purification is based on spin column chromatography using Norgen’s proprietary resin as the separation matrix. The RNA is preferentially purified from other cellular components such as proteins without the use of phenol or chloroform. The process involves first lysing the cells or tissue of interest with the provided Buffer RL (please see the flow chart on page 4). Ethanol is then added to the lysate, and the solution is loaded onto a maxi spin column. Norgen’s resin binds RNA in a manner that depends on ionic concentrations. Thus only the RNA will bind to the column, while the contaminating proteins will be removed in the flowthrough or retained on the top of the resin. The bound RNA is then washed with the provided Wash Solution A in order to remove any remaining impurities, and the purified total RNA is eluted with the Elution Solution A. The purified RNA is of the highest integrity, and can be used in a number of downstream applications.
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| Kit Specifications | |
| Maximum Column Binding Capacity | 1.5 mg |
| Maximum Column Loading Volume | 20 mL |
| Size of RNA Purified | All sizes, including small RNA (< 200 nt) |
| Maximum Amount of Starting Material | |
| Liver Tissue | 100 mg |
| Heart Tissue | 50 mg |
| Kidney Tissue | 100 mg |
| Brain Tissue | 250 mg |
| Lung Tissue | 100 mg |
| Whole Blood | 2 – 10 mL* |
| Bacteria | 2.5 x 10 10 cells |
| Yeast | 2 x 108 cells |
| Fungi | 1 g |
| Plant Tissues | 1 g |
| Time to Complete 4 Purifications | 40 minutes |
| Average Yield: HeLa Cells (5 x 107 cells) E. coli (2.5 x 1010 cells) | ~750 μg ~1.5 mg |
*For isolating total RNA from purified leukocytes
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment.
| Component | Cat. 26800 (8 preps) |
|---|---|
| Buffer RL | 2 x 40 mL |
| Wash Solution A | 4 x 38 mL |
| Elution Solution A | 3 x 20 mL |
| RNA Maxi Spin Columns (with collection tubes) | 8 |
| Elution Tubes (50 mL) | 8 |
| Product Insert | 1 |
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