N-(t-butyl ester-PEG4)-N-bis(PEG4-Propargyl)

Introduction

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

Introduction

Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.

Details

Specifications

Features	Specifications
Concentration	10 mg/ml
Appearance	Suspension of yellowish brown particles
Surface functional group	Carboxyl, COOH
Dispersibility	Monodisperse, spherical
Particle size	0.8-1 μm
Preservation conditions	Room temperature, valid for up to 2 years.It is recommended to store in 2-8°C to prevent microbial growth.
Magnetic response speed	120 seconds
Settling velocity	>2 hours
High salt mediated binding	No adsorption
Alcohol mediated binding	1M NaClO4/ethanol(50%), DNA/RNA recovery up to 90%
PEG8000 mediated binding	The recovery of DNA/RNA was up to 90%
DNase/RNase	Not detected
DNA residue	Not detected
Recommended application	Plasmid extraction, gel DNA recovery, genomic DNA extraction and RNA extraction.

Principle

Highsalt mediated binding: in the solution containing 2-4M guanidine isothiocyanate, Magpure particles can selectively recover DNA molecules, and impurities such as protein polysaccharides are not adsorbed.

Alcohol mediated binding: in the solution containing guanidine salt and alcohol (>25%), Magpure particles can selectively recover DNA/RNA molecules, and proteins and other impurities are not adsorbed.

After biological samples are treated with digestive solution or lysis Buffer, DNA/RNA is released from cells, organelles and protein complexes (ribosomes and nucleosomes) into reagents. After Magpure particles and binding solution are added, DNA/RNA is adsorbed to the surface of Magpure particles to form DNA/RNA bead complex. Under the action of the magnetic field, the magnetic beads are separated and collected, and the impurities such as protein are removed with the waste liquid. After two or three steps of further cleaning, the DNA/RNA magnetic bead complex is resuspended in sterilized water or TE buffer, and the DNA/RNA falls off from the surface of the magnetic beads, so as to achieve the purpose of purification.

Ordering information

CAT.No.	Product Name	Package
C14130	MagBind Particles	10 ml
C14131	MagBind Particles	100 ml

Purchase Guide

Features	MagPure Particles	MagPure Particles N	MagPure Particles G	MagPure Particles F	MagBind Particles
Cat.No.	C1410	C1411	C1412	C1414	C1413
Concentration	100mg/ml	70mg/ml	40mg/ml	50mg/ml	10mg/ml
Form	Amorphous and Porous	Amorphous and Porous	Porous	Amorphous	Nonporous
Surface function	Si-OH, Silica Beads	Si-OH, Silica Beads	Si-OH, Silica Beads	Si-OH, Silica Beads	COOH, Carboxyl Beads
Dispersion	Polydisperse	Polydisperse	Monodisperse	Monodisperse	Monodisperse
Particle Size	1.5-5μm	0.2-2μm	1-1.5μm	0.2-1.5μm	0.8-1μm
Color	Black	Yellowish Brown	Dark Brown	Dark Brown	Yellowish Brown
Magnetic response	15-30s	~60s	~30s	20s	120s
Settling Time (1ml)	>5min	>10min	>3min	>3min	>2h
Usage (0.2ml Sample)	20μl	20μl	20-30μl	20-30μl	20-30μl
DNA Recover Rate (only 4M GITC)	>80%	>80%	>80%	>80%	0
DNA Recover Rate (10% PEG8000/NaCl)	>85%	>85%	>85%	>85%	>90%
Recommended Use	gDNA/RNA Isolation from Blood, Tissue, Plant, Swab, Spots, Stool, Soil and etc.Viral DNA/RNA IsolationAgarose Gel DNA Purification	DNA/RNA Isolation from low nucleic acid content samplesPlasmid IsolationDNA/RNA Clean Up	Circulating DNA IsolationViral Nucleic acid IsolationgDNA Isolation FFPE DNA/RNA Isolation	Plasmid extractiongel DNA recoverygenomicDNA/RNA extraction viral nucleic acid extractionCirculating DNA extraction	DNA/RNA Clean Up and concentrationDNA/RNA Isolation from low nucleic acid content samplesResearch immuno assays

• The MagPure magnetic-particle technology combines the speed and efficiency of silica-based DNA purification with the convenient handling of magnetic particles. DNA binds to the silica surface of the magnetic particles in the presence of a chaotropic salt. DNA bound to the particles is then efficiently washed, considerably improving the purity of DNA. High-quality DNA is eluted. The automated purification procedure completely removes enzymes, nucleotides, and other contaminants and inhibitors. Purified DNA is suitable for direct use in downstream applications, such as sequencing and microarray analysis.

Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.

• Screening of Cylindrospermopsin in water samples at or above 30ppt
• Format: 15 tests (5 samples at 2 dilutions/5 controls)
• Syringe
• Sample Filter
• Sample Dilution Buffer
• Water Collection Bottle
• Water Collection Tube
• 200ul fixed volume pipette
• Water Sample Bottle
• Negative control

Description

Attogene’ s Cylindrospermopsin Lateral Flow Kit can be used to detect Cylindrospermopsin in source water samples.

Format: Rapid-Water – Run Time: 30 Minutes, enough to run two samples at 10 and 100 fold dilutions and two negative controls.

Cylindrospermopsin (CYN) is a potent cyanotoxin synthesized by select species of cyanobacteria, prominently including Cylindrospermopsin raciborskii. It belongs to the tricyclic alkaloid class, exhibiting a molecular weight of approximately 415 Da. Structurally, cylindrospermopsin features an uracil ring fused with a hydantoin moiety, alongside a guanidino group, attributes that render it highly soluble and polar in aqueous environments.

Cylindrospermopsin is notorious for its profound toxicity towards aquatic organisms and its potential threat to human health through exposure via contaminated water and food sources. Consequently, rigorous monitoring protocols are essential in regions prone to cyanobacterial blooms, where cylindrospermopsin can accumulate in freshwater reservoirs and other aquatic habitats. In recognition of these risks, regulatory bodies such as the United States Environmental Protection Agency (EPA) have implemented an action level guideline. As of 2019, EPA 10-day drinking water health advisory for cylindrospermopsin recommended a threshold of 0.7 parts per billion (ppb), or 700 parts per trillion (ppt) for children under the age of six, and 3 parts per billion, 3000 parts per trillion for anyone older, to effectively manage cylindrospermopsin levels. This precautionary measure aims to uphold both environmental sustainability and public health integrity by minimizing exposure risks.  The EPA has also drafted a human health recreational water quality criterion to protect human health at 8,000ppt.

EPA 10-Day drinking water Health Advisories for Cylindrospermopsin: 

Do not Drink – 0.7 μg/L for bottle fed infants and preschool children, pregnant and nursing woman, elderly immunocompromised and liver conditions

Do not Drink – 3.0 μg/L for school age children to adults

Do Not Use – 20 μg/L

EPA Draft Human Health Recreational Ambient Water Quality Criteria to protect human health: 8 μg/L

Screening of Cylindrospermopsin in water samples at or above 30ppt
Format: 15 tests (5 samples at 2 dilutions/5 controls)
Syringe
Sample Filter
Sample Dilution Buffer
Water Collection Bottle
Water Collection Tube
200ul fixed volume pipette
Water Sample Bottle
Negative control