bis-PEG2-endo-BCN is a click chemistry reagent, The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
bis-PEG2-endo-BCN is a click chemistry reagent, The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
bis-PEG2-endo-BCN is a click chemistry reagent, The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
The cfDNA Purification Kit (Magnetic Beads) was developed for cell free DNA (cfDNA) enrichment by separating genomic DNA contamination from isolated cfDNA samples.
Many diagnostic technologies for detection of disease signals in cfDNA begin with isolation and purification of DNA from liquid biopsy that include urine, plasma, cerebrospinal fluid. The most widely explored biotechnology is assays used to detect cancer-derived plasma cfDNA. Silica-based magnetic bead cfDNA isolation kits can reliably extract total DNA from plasma, but typically yield a large variation in cfDNA that includes the presence of genomic DNA that often depends on tumor stage, tumor size, or healthy status individuals. Most of the commercial cfDNA isolation kits can’t specifically recover the cfDNA while leaving the high molecular weight genomic DNA behind. The presence of genomic DNA can lead to decreased sensitivity or inconsistent results in downstream applications such as next-generation sequencing (NGS), PCR, QPCR, and digital PCR etc.
Therefore, an additional purification step to enrich cfDNA before downstream methods helps to improve signal from fragments that originate from cancer cells. A proportion of cancer-derived cfDNA fragment signals are below 100 bp and are often not detectable except by qPCR or single-stranded DNA based library preparation for NGS (1, 2, 3). Furthermore only 1% of cancer-derived fragments are found above 400 bp (1, 2). Capture of size-selected fragments between 90-150 bp improved detection of cancer by 2-4 fold (4). Furthermore, TF-bound and protected cfDNA fragments are also being investigated for active cancer-specific signals down to 35-80 bp (5, 6).
This kit uses Dual Solid Phase Reversible Immobilization (SPRI) technology for cfDNA purification. Most Dual SPRI procedures do NOT recover fragments below 100 bp. The kit can be used for the enrichment of cfDNA isolated from liquid biopsies, plasma, serum, and urine. The kit separates cfDNA (50-500 bp) and genomic DNA, and recovers of 90% of the cfDNA without the high molecular weight genomic DNA with high efficiency. Fragments at 500 bp and above may also be retained. Both the 50-500 bp and >500 bp DNA fractions can be used for downstream applications such as single-stranded or double stranded NGS library prep, qPCR, ddPCR, and other methods.
Features
Examples of cfDNA purification. Both cfDNA and genomic DNA can be recovered separately.
The range of recovered small DNA fragments is from 50 to 500 bp. The input DNA are mixtures of sheared small DNA fragments and intact genomic DNA. The ratios of sheared DNA fragments versus genomic DNA are indicated.
Recovery rates of cfDNA and genomic DNA.
Many diagnostic technologies for detection of disease signals in cfDNA begin with isolation and purification of DNA from liquid biopsy that include urine, plasma, cerebrospinal fluid. The most widely explored biotechnology is assays used to detect cancer-derived plasma cfDNA. Silica-based magnetic bead cfDNA isolation kits can reliably extract total DNA from plasma, but typically yield a large variation in cfDNA that includes the presence of genomic DNA that often depends on tumor stage, tumor size, or healthy status individuals. Most of the commercial cfDNA isolation kits can’t specifically recover the cfDNA while leaving the high molecular weight genomic DNA behind. The presence of genomic DNA can lead to decreased sensitivity or inconsistent results in downstream applications such as next-generation sequencing (NGS), PCR, QPCR, and digital PCR etc.
Nucleic acid testing (NAT) is the method of choice for detection and quantification of a wide range of micro organisms. Primerdesign manufactures and supplies high quality quantitative real-time PCR kits for the detection and simultaneous quantification of numerous significant pathogens . A copy number standard curve is provided for quantification and an the internal extraction template (DNA or RNA), controls for the quality of the nucleic acid extraction and eliminates false negative results.
The kit is designed with the broadest possible detection profile to ensure that all clinically relevant strains and subtypes are detected. Target sequences are selected by working with data from key opinion leaders in the field. Multiple sequence alignments and unprecedented real-time PCR expertise in design and validation ensure the best possible kit.
Details of the target and priming specificity are included in the individual handbooks above.
Packaged, optimised and ready to use. Expect Better Data.
Exceptional value for money
Rapid detection of all clinically relevant subtypes
Positive copy number standard curve for quantification
Highly specific detection profile
High priming efficiency
Broad dynamic detection range (>6 logs)
Sensitive to < 100 copies of target
Accurate controls to confirm findings
Compact and stylish designed, the BioShake iQ high-end thermoshaker lets you perform all your standard mixing runs with a minimum of adjustments.
The BioShake iQ offers outstanding performance to handle a wide range of applications across biotechnology, pharmaceutical and academic research.
By combining the mixing operation with the incubation phase, reaction process times and operator workload are reduced and efficiency of many procedures is increased, resulting in a higher throughput.
The first-class finished aluminium housing gives the BioShake iQ its essential functionality. It provides a high amount of security, device stability and ensures a long service life.
German designed and manufactured, BioShake iQ thermoshaker offer an ultra-efficient, 2-dimensional shaking axis so that samples mix completely in a fraction of the time of competing systems.
The mixing orbit of 2.0 mm is always constant. The orbital shaking is precisely controlled, in fact, that you need never spin down your plates after mixing. Even tubes, vials, high density plates, or low sample volumes, offer no obstacle for these precision tools.
Fully adjustable between 200 rpm and 3,000 rpm, well beyond the speeds of most other brands, guarantees fast, splatter-free, mixing for tubes, glass vials or across an entire 384-well microplate.
The BioShake iQ heats from ambient to 99°C in a short time, provides ease of use features, amazing comfort and maximum safety.
Within the BioShake iQ thinnest large-area heating elements and sensors are integrated. During the heat up time the special electronic control system guarantees the same temperature for all vessels with minimal deviations.
Temperatures are selectable from ambient temperature to 99°C in steps of 1.0°C. The nominal regulation accuracy is better than ±0.1°C with a uniformity of temperature distribution better than ±0.5°C at 45°C across the heating surface.
Exchangeable thermo adapter plates and thermal blocks enable a perfect adaptation to microplates, tubes or glass vials.
In the corners eight spring clamps are inserted for easy fixation of skirted microplates and deep well plates in SBS format 127.7 x 85.5 mm without an attached adapter. These spring clamps lock the microplate quickly and safely, even at the highest mixing frequencies.
For flexible and deformable PCR plates we recommend using of the related PCR adapter.
Fast mixing processes with frequent plate changes can be performed in the routine as easy and safe.
The BioShake iQ is operated from the front face of the enclosure which includes touch buttons and a display.
Special buttons for start, stop and storage of time and mixing modes enable the instrument to run complex applications. This opens new points of view on the daily laboratory work and optimizes routine application enormously.
The short mix button allows short and fast mixing in between.
The two line LCD display guarantees simultaneous and safe reading of all programmed and measured parameters as time, mixing frequency and temperature.
The BioShake iQ comes with a variety of standardized and specific adapter plates. The replacement of the adapters are very simple.
Perfect shaped adapters allow an optimal fit for standard tubes, lysis tubes, microplates, glass vials and other sample vessels. An excellent temperature uniformity and homogeneity is guaranteed for all samples.
Unique and efficient design combined with the most compact housing result in beautiful and well-defined laboratory equipment. Therefore, the first-class finished aluminium housing gives the BioShake iQ its essential functionality. It provides a high amount of security, device stability and ensures a long service life.
Safety of the user and ease of use are clearly a priority.
A perfectly harmonious blend of high-tech and handmade. “Made in Germany” has always been a recipe for success for QInstruments. 100% of QInstruments production takes place in Germany.
The focus is on human diligence and on being environmentally friendly. The company upholds its quality guarantee by means of consistent quality management. For more than 15 years these lab automation professionals from Jena have used only high-quality materials to ensure sustainable production, applied innovative thinking and undertaken research in a future-oriented way – all as a matter of course.
For microplates, tubes and glass vials
Fast & high-precision heating
Temperature range: ambient to 99°C
Precise mixing from 200 – 3,000 rpm
Wide range of thermo adapters
Stylish aluminium housing
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