Not all cyanobacterial strains produce toxins. However, the toxin-producing strains cannot be distinguished from the nontoxin-producing strains by traditional light microscopy, commonly used to monitor water bodies. An alternative for the differentiation of potentially toxic strains from nontoxic strains is to use molecular methods to detect the presence of toxin biosynthetic genes. Such methods are already available and could be used for the detection and identification of potential microcystin and nodularin producers present in environmental samples (Attogene catalog number NA2024).
Screening for the toxin itself, can be very costly. In turn, real time PCR for the detection of the anaC gene in cyanobacterial strains and environmental samples can be a key indicator for the prescense of cyanobacteria capable of expressing the Anatoxin toxin. Attogen has thus, designed primer pairs and probes targeting a the conserved anaC gene region in order to enable the amplification and detection of several producer genera using real time PCR. Screening for the toxin genes can save significant costs and act as a triage for samples needing to be analyzed for the toxin itself.
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Plasma/Serum Cell-Free Circulating DNA Purification Kits Dx
Product Info
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Product Info
Overview
Concentrate circulating DNA into a flexible elution volume ranging from (25 µL – 50 µL)
Isolate inhibitor-free cell-free circulating DNA
Compatible with Streck Cell-Free DNA BCT® Tubes
Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
These kits provide a fast, reliable and convenient spin column method for the isolation of high quality, high purity and inhibitor-free cell-free circulating DNA (cfc-DNA) from plasma/serum sample. These kits are designed to isolate all sizes of cfc-DNA from either fresh or frozen plasma/serum samples and the purified DNA is eluted into a flexible elution volume ranging from 25 µL to 50 µL. The purified plasma/serum cfc-DNA is fully compatible with all downstream applications including PCR, qPCR, methylation-sensitive PCR and Southern Blot analysis, microarrays and NGS.
Background
Plasma/Serum cell-free circulating DNA (cfc-DNA) has the potential to provide biomarkers for certain cancers and disease states as well as fetal DNA in maternal blood. Currently, significant advancements are being made in utilizing cfc-DNA as biomarkers for the early diagnosis, prognosis and monitoring of therapy for several cancer types and autoimmune diseases. Cell-free mitocondrial DNA (cfmtDNA) is also under investigation for its clinical significance. This cfc-DNA is usually present as short fragments of less than 1000 bp. In addition, cell-free fetal DNA has been widely used as a non-invasive method for prenatal diagnosis including early identification of fetal sex, genetic studies for families at high risk for inherited genetic disorders, screening for Rhesus factor, screening for aneuploidy and identification of preeclampsia.
Plasma/Serum Cell-Free Circulating DNA Purification Micro Kit Dx
For serum input volumes 10 µL – 200 µL. Purify high-quality DNA in 15-20 minutes
Plasma/Serum Cell-Free Circulating DNA Purification Mini Kit Dx
For serum input volumes 200 µL – 500 µL. Purify high-quality DNA in 15-20 minutes.
Plasma/Serum Cell-Free Circulating DNA Purification Midi Kit Dx
The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 25 µL to 50 µL. All components for the purification & concentration are provided in one convenient & fast kit for the easy processing of large input volumes of bodily fluids. For a schematic workflow of the protocol click here to view. For serum input volumes 1 mL – 4 mL. Purify high-quality DNA in 90 minutes.
Plasma/Serum Cell-Free Circulating DNA Purification Maxi Kit Dx
The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 25 µL to 50 µL. All components for the purification & concentration are provided in one convenient & fast kit for the easy processing of large input volumes of bodily fluids. For a schematic workflow of the protocol click here to view. For serum input volumes 5 mL – 10 mL. Two kits in one – purify and concentrate DNA from bodily fluids using a convenient two column system.
*Please check page 7 in the product manual for the Plasma/Serum Average Yields and the Common DNA Quantification Methods.
Storage Conditions and Product Stability All buffers should be kept tightly sealed and stored at room temperature (15-25°C) for up to 2 years without showing any reduction in performance. Norgen’s Plasma/Serum Cell-Free Circulating DNA Purification Kits contain ready-to-use Proteinase K solution, which is dissolved in a specially prepared storage buffer. The Proteinase K is stable for up to 2.5 years after delivery when stored at room temperature. To prolong the lifetime of Proteinase K, storage at 2–8°C is recommended.
DBCO-PEG36-TFP ester is an amine-reactive, labeling reagent used to modify proteins, antibodies, and other amine-containing biopolymers. The hydrophilic PEG spacer arm provides a long and flexible connection that minimizes steric hindrance involved with ligation to complementary azide-containing molecules. The TFP ester is less susceptible to undergo hydrolysis compared to the NHS ester. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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DBCO-PEG36-TFP ester is an amine-reactive, labeling reagent used to modify proteins, antibodies, and other amine-containing biopolymers. The hydrophilic PEG spacer arm provides a long and flexible connection that minimizes steric hindrance involved with ligation to complementary azide-containing molecules. The TFP ester is less susceptible to undergo hydrolysis compared to the NHS ester. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 6 months under recommended storage conditions
Analyte:
Acetaldehyde
Assay Format:
Spectrophotometer, Microplate, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
0.5 to 20 µg of acetaldehyde per assay
Limit of Detection:
0.18 mg/L
Reaction Time (min):
~ 4 min
Application examples:
Wine, champagne, beer, liqueurs, brandy, dairy products (e.g. yogurt), bread, fruit juices, soft drinks, cocoa, vegetable and fruit products, coffee, and other materials (e.g. biological cultures, samples, etc.).
Method recognition:
Methods based on this principle have been accepted by MEBAK
The Acetaldehyde test kit is a simple, reliable and accurate method for the measurement and analysis of acetaldehyde in beverages and foodstuffs.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
