Propargyl-PEG4-acid

Propargyl-PEG4-acid is a PEG reagent with an alkyne and a terminal carboxylic acid. The carboxylic acid reacts with primary amine groups with the help of activators (e.g. EDC, or HATU). The 4-unit PEG spacer increases hydrophilicity. The alkyne can participate in copper-catalyzed Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

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Stool Nucleic Acid Collection and Preservation Devices Dx

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Product Info

Overview

CE-IVDR marked in accordance with the European Commission Regulation (EU) No. 2017/746.
Ideal for use in in vitro workflows
No need to immediately process samples
Nucleic acid preservation at room temperature over 2 years for DNA and 7 days for RNA
Ship stool samples at room temperature safely
Compatible with most DNA/RNA isolation methods

Norgen’s Stool Nucleic Acid Collection and Preservation Devices Dx are designed for the collection and preservation of nucleic acids from fresh stool specimens. The Stool Nucleic Acid Collection and Preservation Devices Dx – 50 contains 50 individual Stool Nucleic Acid Collection and Preservation Devices Dx. Each Stool Nucleic Acid Collection and Preservation Device Dx consists of Norgen’s Stool Nucleic Acid Collection and Preservation Tube Dx containing Norgen’s Stool Preservative in a liquid format. The user simply collects stool into the tubes (fill up to the line indicated on the tube) and mixes gently until the stool is well submerged under the preservative. The Stool Nucleic Acid Collection and Preservation Tube Dx is subsequently sent to the laboratory for DNA and/or RNA isolation and analysis. The stool DNA in preserved samples is stable for more than 2 years at room temperature, and the stool RNA in preserved samples is stable for 7 days at room temperature. DNA can be isolated from the preserved stool samples using Norgen’s Stool DNA Isolation Kit Dx (Cat. Dx27600) and RNA can be isolated from the preserved stool samples using Norgen’s Stool Total RNA Purification Kit Dx (Cat. Dx49500). These tubes are ideal for collecting and preserving DNA and RNA samples for in vitro diagnostic use for medical purposes.

NOTE: This product is not available for sale in the United States.

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Supporting Data

Figure 1 / 9

Figure 1. Norgen's Best-In-Class Preservation

Figure 2. High Integrity of Preserved DNA and RNA

Figure 6. Hierarchical Clustering of Stool Samples at Phylum Level

Figure 7. Difference In Top 5 Abundant Microorganisms at Phylum Level

Figure 8. Relative Abundance of Bacterial Genera

Figure 9. Correlation between duplicate bacterial metagenomic reads

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Kit Specifications
Stool Input	2 g
Stability of Stool Nucleic Acids at Room Temperature	2 years for DNA 7 days for RNA*

* The RNA stability will be vary depending on the samples

Stool Nucleic Acid Collection and Preservation Devices Dx – 50 Contents:

Kit Components	Cat. Dx45660
Stool Nucleic Acid Collection and Preservation Devices Dx	50
Product Insert	1

Stool Nucleic Acid Collection and Preservation Device Dx Contents:

Kit Components	Contents
Stool Nucleic Acid Collection and Preservation Tube Dx filled with preservative	1
Insert Card	1

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Sputum DNA Isolation Kit

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Product Info

Overview

DNA can be isolated and detected from as little as 100 µL of sputum
Effective removal of PCR inhibitors
Compatible with Norgen’s Saliva Collection and Preservation Device (Cat. RU49000)
Sputum Liquification Buffer (Cat. 28289) can be purchased separately

This kit constitutes an all-in-one system for the rapid isolation of DNA from sputum samples. It allows for the isolation of bacterial or eukaryotic DNA from the sputum samples using spin-column chromatography based on Norgen’s proprietary resin. The kit includes all the reagents needed to process sputum DNA. The protocol can be completed in 30 minutes. Purified DNA is of the highest quality and free from inhibitors, and can be used in sensitive downstream applications including PCR and qPCR.

Background

A sputum specimen is the name given to the mucus which is expectorated from the lower airways. High quality sputum samples should contain very little saliva, as this may contaminate the sputum sample with oral bacteria. Sputum samples are typically evaluated to look for infections such as Moraxella catarrhalis, Mycobacterium tuberculosis, Streptococcus pneumoniae ;and Haemophilus influenza. Other pathogens can be detected in sputum as well, including HIV. In addition, sputum samples are useful in the detection of lung cancer or to evaluate chronic inflammation.

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Supporting Data

Figure 1 / 3

Figure 1. Consistent Isolation of Sputum DNA

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Kit Specifications
Time to Complete DNA Isolation	< 1 hour
Average Yield of DNA from 1.0 mL*	75 μg
Average Purity (OD260/280)	1.8 – 2.1

* Average DNA yield will vary depending on the health status of the donor

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.

Norgen’s Sputum DNA Isolation Kit contains ready-to-use Proteinase K, which is dissolved in a specially prepared storage buffer. The buffered Proteinase K is stable for up to 2 years after the date of shipment when stored at room temperature.

Component	Cat. 46200 (25 preps)
Slurry D	55 mL
Proteinase K in Storage Buffer	0.6 mL
Solution WN	4 mL
Wash Solution BE	9 mL
Elution Buffer B	8 mL
Mini Filter Spin Columns	25
Collection Tubes	25
Elution Tubes (1.7 mL)	25
Product Insert	1