WO2008065206A1 - Laboreinmalartikel für analyse und diagnostik - Google Patents
Laboreinmalartikel für analyse und diagnostik Download PDFInfo
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- WO2008065206A1 WO2008065206A1 PCT/EP2007/063192 EP2007063192W WO2008065206A1 WO 2008065206 A1 WO2008065206 A1 WO 2008065206A1 EP 2007063192 W EP2007063192 W EP 2007063192W WO 2008065206 A1 WO2008065206 A1 WO 2008065206A1
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- nucleic acid
- dna
- reaction vessels
- reference nucleic
- reaction
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6844—Nucleic acid amplification reactions
- C12Q1/686—Polymerase chain reaction [PCR]
Definitions
- the invention relates to laboratory disposable articles and more particularly to reaction tubes for carrying out the chain polymerase reaction for analytical and diagnostic purposes.
- PCR The chain polymerase reaction
- PCR allows exponential amplification of nucleic acid molecules in vitro. PCR is used to diagnose hereditary and infectious diseases, to obtain genetic fingerprints, to clone genes, to determine paternity and much more. In food chemistry, it is used to determine the type and amount of components in a preparation, such as hazelnut, peanut, soya, fish, wheat, cereals, animal species and possibly genetically modified organisms (GMOs), the origin of the constituents and of course also for the detection of pathogenic germs such as Salmonella, Listeria and so on. Despite the many fields of application, the chain polymerase reaction is always the same in principle.
- the analyzes differ only in the sample preparation and the type of DNA or RNA that is to be amplified, or the start oligonucleotides, also called primers, whose sequences must be complementary to the beginning or end of a DNA sequence section to be amplified.
- the primers are annealed (DNA annealed) to a complementary nucleotide strand in the sample, if present, and the synthetically produced new double strands then contain additional starting sites for the synthesis of additional DNA strands.
- the sensitivity and specificity of the reaction result from the length and the sequence of the primers and the outstanding accuracy of the enzymatic DNA synthesis by the DNA polymerase or the reverse transcriptase.
- the optimal length of the primer is usually between 15 and 40 nucleotides at a melting temperature between 55 and 70 degrees Celsius.
- the reaction mixture for the chain polymerase reaction always contains the same deoxynucleoside triphosphates (dNTPs), an aqueous buffer solution, DNA polymerase or reverse transcriptase and, as an additive, DNA or RNA of the sample to be analyzed.
- dNTPs deoxynucleoside triphosphates
- the thus-synthesized DNA product is usually analyzed for its length and optionally verified by enzymatic restriction. In individual cases, a sequencing of the DNA can be done.
- nucleic acids become “unstable” or the molecules are inaccessible to reaction in the reaction vessel, which is then managed by adding a larger amount of non-specific DNA to the low-concentration specific nucleic acid,
- this is problematic for many reasons and can lead to severe systematic errors, so it is generally recommended to retake all necessary dilution steps from a stock solution of defined concentration daily labor intensive and subject to fluctuating pipetting accuracy, which reduces reproducibility and reliability.
- International patent application WO 2004/106549 discloses a method for preserving nucleic acids in which aqueous solutions of the nucleic acid in the presence of disaccharides and collagen, preferably trehalose and collagen, ly_o_; be philated.
- the trehalose is essentially intended to make the nucleic acids more durable, and the collagen sticks the nucleic acid present on the vessel surface to the wall and protects it in an opaque manner.
- International Patent Application WO 2005/103277 teaches a dry amplification mixture for the chain polymerase reaction and the technical PCR analysis, which contains DNA polymerase, deoxyribonucleosides, buffer components, water-soluble dye for DNA electrophoresis and stabilizer.
- the PCR method comprises dissolving the dry amplification mixture in a buffer with magnesium ions and then adding primer and DNA sample to be analyzed.
- EP-A2-1 374 827 discloses methods for stabilizing dry and semi-dry mixtures with PCR enzymes and reagents as well as kits with these dry mixes. Also at refrigerator temperatures, these mixtures are stable only for comparatively short periods of time
- a disadvantage of the prior art is, in particular, that despite all the measures, the amounts of DNA actively present in the vessels for the PCR fluctuate, even if equal amounts of DNA have been placed in the vessels. This is presumably due to the fact that the PCR reagents, desoxy (r ⁇ bo) nucleotidr ⁇ phosphate, P ⁇ mer oligonucleotides and template RNAs or - DNAs either individually or in admixture together with the special substances or stabilizers (nonspecific DNA, gelatin, collagen, glucose, Innulm, Maltose, mannitol, dextrans, trehalose, sucrose and other disaccharides, THESITt®, polyethylene glycol, polyvinylpyrrolidone, TRITON-X 100®, TWEEN-20®, bovine serum albumin (BSA), Phycoll, buffer salts such as Tris-HCl, KCl, DTT, etc.) are dried in the special substances or stabilizers (nonspecific DNA
- Such dried PCR mixtures are highly hygroscopic and lose activity and efficacy upon prolonged storage due to moisture uptake. This effect is also reinforced by the addition of stabilizers such as collagen or gelatin. However, if the lyophilization takes place without the presence of glue-forming substances such as collagen or gelatin, flocs of the PCR reagents form, which can migrate in the vessels, so that no quantitative determination is possible with prepared vessels.
- the packaging unit according to the invention for carrying out a chain polymerase reaction for analytical, diagnostic and technical purposes comprises a set of designated dry reaction vessels in the form of a storage with a number of known amounts of primer oligonucleotides which, after addition of suitable reagents, enzyme and DNA or RNA Sample in a chain polymerase reaction, start amplification of the target sequence;
- a set of designated dry reaction vessels in the form of a bearing having a number of known amounts of primer oligonucleotides and reference nucleic acid which upon addition of fixed amounts of liquid give a concentration series of the reference nucleic acid, the reference nucleic acid containing the target sequence.
- the two sets of designated dry reaction vessels in the form of storage are according to the invention prepared so that in the reaction vessels each aqueous solutions of known amounts of primer oligonucleotides with and without Referenznukleinklare only in the presence of 1 to 5 mmol / L trehalose under ambient pressure at a temperature of 5 to At most 30 degrees Celsius are dried over room temperature, so that the resulting pellet is completely dry, but not hygroscopic.
- the two sets of designated dry reaction vessels in the form of a bearing are prepared in such a way that aqueous solutions of known amounts of primer oligonucleotide are respectively present in the reaction vessels.
- the dry solutions in the prior art also contain hydroxyl-containing hydrogen bridge-forming molecules such as nonspecific DNA, gelatin, collagen, glucose, inulin, maltose, mannitol, dextranes, trehalose, sucrose and other disaccharides, in a separate step , Thesit®, polyethylene glycol, polyvinylpyrrolidone, Triton-X 100®, Tween-20®, bovine serum albumin (BSA), Phycoll, etc., to "stabilize” the nucleic acids and oligonucleotides in the intended very low concentrations and pellet on the vessel wall to hal th.
- hydroxyl-containing hydrogen bridge-forming molecules such as nonspecific DNA, gelatin, collagen, glucose, inulin, maltose, mannitol, dextranes, trehalose, sucrose and other disaccharides
- the invention further lies in the combination of similarly prepared reaction vessels with primer oligonucleotides or reference nucleic acid. It is surprising that even such a low copy number of the target sequence of 100 or 1000 is stable, the aqueous solution of the reference nucleic acid is only dried in the presence of trehalose. Since the reaction vessels with the primers and the reference nucleic acid are made equal, an absolute comparability between sample and reference is given.
- a preferred embodiment is in a packaging unit with said designated reaction vessels, wherein the volume of the aqueous solutions in the reaction vessels before drying 1 to 25 ul.
- the concentration of the primers is between 0.1 and 100 ⁇ mol / L at 1 to 5 mmol / L trehalose.
- the target sequence is preferably contained in an amount of 10 to 100,000 copies as genomic DNA or plasmid.
- An amplicon can also be used. However, it has been found that amplicons are much less stable under these conditions. Presumably, exonuclease activity is regularly introduced in amplicons.
- the copy number per reaction vessel is preferably 100 to 5,000.
- Another embodiment relates to reaction vessels for a hot-start PCR.
- the dried primer or the reference nucleic acid are covered with a hydrocarbon wax, which melts at 57 degrees Celsius and floating in the aqueous solution upwards. This prevents primers and nucleic acids from hybridizing with one another even at lower temperatures.
- hot-start polymerases which become active only at temperatures above 50 degrees Celsius.
- hot-start polymerases are much more expensive than conventional DNA polymerases and reverse transcriptases.
- the layer of high-melting hydrocarbon wax also protects the underlying pellet with the primers and / or the reference nucleic acid from mist moisture.
- reaction tubes are present in the kit, in which spatially separated primer oligonucleotides and reference nucleic acid in the presence of trehalose are dried on the vessel wall, that after addition of the aqueous solution with the other reagents for the chain polymerase primer oligonucleotides and reference nucleic acid are dissolved in the aqueous solution.
- reaction vessels are preferably designed as wells of a microtiter plate.
- Microtiter plates are commonly sold commercially as 24, 48, 96, 192 and 384 well plates.
- the amount of the two primers in the reaction vessels is preferably 7.5 pmol
- a chain polymerase reaction remains exponential for 12 to 400 output copies for about 30 cycles, 200 to 3200 for 25 cycles, and initially 3000 to 50,000 for no more than 20 Cycles
- CT value Threshold Cycle
- Cp value Cross Point
- the packaging unit may contain one or more of the following buffer and reaction solutions, for example DNA or RNA extraction solution, proteinase K solution, gel loading buffer, nucleotide and amplification buffer (MasterMix), DNA polymerase or reverse transcriptase and, for all purposes, optimized amplification mixtures in their ready-to-use form, such as the AmpliTaqGold® MasterMix from Roche Molecular Systems, Ine, users will want to continue trusting the blends used so far, so the latter option - including MasterMix - is just here is mentioned for the sake of completeness
- Trehalose also called mycosis
- Trehalose is therefore a potent PCR enhancer, which lowers the melting temperature in solution and thermally stabilizes the Taq DNA polymerase (Spiess AN et al (2004) Chnical Chemistry 50 (7), 1256- 1259)
- reaction components embedded in the wax droplet are then released to the other reaction components of the PCR reaction only after higher temperatures have been reached and the wax coating has been melted, as a result of which a mixture and ei
- the early start of the DNA polymerase reaction at low temperatures can be avoided.
- this method is only suitable in areas with very high numbers of samples, since embedding a portion of the reaction components in a wax drop on a polyethylene thread is complicated. A long-term durability of polymers and reference nucleic acid on the polyethylene yarn is not taught.
- the polymers and / or the reference nucleic acid are in the presence of tungsten Halose dried on the wall of the reaction vessel, preferably in the bottom of the vessel
- the so designated purpose prepared designated Probengefackede can then by addition of a defined amount of water and Ampltechnischsgemisch (DNA polymerase, dNTPs, Mg 2+ , T ⁇ s-HCl buffer, pH 8.0 Further steps are not necessary since the designated sample vessels already contain the primers and a given copy number of the target sequence in known amounts, protected by a glassy layer of trehalose, which completely dissolves under the conditions of a chain polymerase reaction Trehalose presumably as a solution for the few copies of the reference nucleic acid
- the problem is that when Lyophihsieren or drying of the reagents crystallize differently and form small, non-adherent flakes which can be distributed throughout the vessel. If all reagents are pelleted at the bottom of a reaction vessel, larger amounts of salt may be required. These may affect subsequent enzymatic reactions and water According to this problem is solved so that the superfluous reagents are omitted and the oligonucleotides and Referenznukleinsauren are dried only in the presence of physiological amounts of trehalose on an inert substrate such as on a polyethylene wall. It is not all sugars are suitable, but only those that give a glassy layer when dried. At the same time, the sugar has to be rapidly dissolved in the presence of water.
- Trehalose Trehalose is black In nature, trehalose is functionally similar to sucrose, but has other glass-centering and stabilizing properties, trehalose is naturally present in plants and fungi and also in the hemolymph of many insects. Trehalose is chemically, thermally and acidically stable and readily soluble in water, with trehalose less soluble at lower temperatures and more soluble at higher temperatures than sucrose Disacchands, however, trehalose is not hydrolyzable and it can not participate in a Maillard reaction with the amino acids or proteins. It also has a high adhesion to plastic walls
- reaction vessels are available for the chain polymerase reaction, which can be stored for months and years at room temperature Reaction vessels can be used immediately if necessary.
- All primers and reference nucleic acids are immediately usable and exactly in the reaction vessels before and it must be used only for the respective analysis reaction prepared sample DNA or RNA and a master mix (Ampltechnischsgemisch). But this is always necessary.
- According to the invention eliminates the possible errors by incorrectly using or incorrectly determining the amounts of primer and reference nucleic acid.
- vessels with a "wrong" nucleic acid or other positive and negative controls are delivered in addition to the sample vessels according to the invention.
- Ready-to-use master or amplification mixtures can be purchased commercially from a variety of manufacturers, with different natural or genetically modified or chemically modified DNA polymerases or reverse transcriptases.
- Typical DNA polymerases are Taq DNA polymerase, the recombinant truncated form of Taq DNA polymerase lacking 5'-3 'exoactivity (KlenTaq), a chemically modified Taq DNA polymerase for a Start PCR, or a highly accurate recombinant thermostable DNA polymerase from Pyrococcus abyssii, etc.
- the master mixes can be multiply concentrated and be with and without magnesium ions.
- the magnesium ions can also be added from a separate magnesium stock (for example 25 mM MgCl 2 ).
- the master mixes may further contain compounds that increase the sample density so that the products from the chain polymerase reaction can be added directly into the wells of an analytical or quantitative agarose gel.
- the master mix may also contain dyes, either for real-time PCR or for analysis on the agarose gel.
- Fig. 3 is a gel electrophoresis of the amplification products in the reaction vessels according to the invention at different amounts of added hazelnut DNA and aging over 6 months at 37 0 C (sensitivity test).
- reaction vessels made of polypropylene, in whose wells (200 .mu.l) known amounts of specific primer for hazelnut determination and as a reference nucleic acid hazelnut total DNA were dried.
- this was a mixture of 0.75 ⁇ l of a first primer CaMAV-F3 with a concentration of 10 ⁇ mol / L, 0.75 ⁇ l of a second primer Ca-R05 with a concentration of 10 ⁇ mol / L, 2 ⁇ l of a 5 mmol / L Trehalose solution and 0.5 ⁇ l of water.
- the prepared wells of the microtiter plate contained the primer necessary for the detection in the optimal amount for the determination of hazelnut DNA in the sample or for the negative control (checking the master mix for contamination) and for the extraction control (checking the extraction for contamination ).
- the red labeled reaction wells contained, in addition to the primers, a hazelnut DNA in low amounts. On the one hand, they allow a positive control (functionality of the master mix), on the other hand an inhibition control (checking of the DNA isolate for inhibitors) and, thirdly, a quantification of the DNA in the sample.
- the DNA extraction was carried out according to the CTAB method (ISO 21571, Foodstuffs
- the isolated and purified DNA was amplified in the reaction wells of the microtiter plate. 12.5 ⁇ l of DNA extraction and 12.5 ⁇ l of AmpliTaqGoId® Master Mix from Applied Biosystems were used in the wells. This was followed by amplification of the target sequence on a thermocycler (Eppendorf Mastercycler). The cycler profile in this case was 10 minutes at 95 ° C as the initial activation of the polymerase, 15 seconds at 95 ° C and 60 seconds at 62 ° C for 45 cycles. If necessary, the assigned time value profile must be adapted.
- amplificate (78 base pair amplificate) was then analyzed after adding loading buffer on a 2.5% agarose gel (2 to 4 ⁇ l ethidium bromide in TAE buffer) and conventional electrophoresis (10 minutes, at 3 to 6 volts / cm) and visualized the product on a transilluminator.
- the positive reference with the target sequence had to show a band of 78 base pair length and the negative control was not allowed to show any band in this region (see FIG. 1).
- the reaction could be considered positive. If no gang was seen, then this could only mean that there was no hazelnut DNA in the sample or that the reaction was inhibited. Inhibition could be excluded if the same DNA isolate was clearly positive in a well with the reference nucleic acid. If this was not the case, then there was an inhibition and the DNA isolate was then amplified in a larger dilution.
- the microtiter plate according to the invention with the standardized amounts of
- Reference and control nucleic acids as well as the optimized primer concentrations can thus be processed all case constellations at once, since the case, that also the reference nucleic acid are present in insufficient quantities due to degradation, does not occur.
- the sequence identity of the amplificate can then be checked additionally via a restriction, for example with BamH I.
- a restriction for example with BamH I.
- hazelnut DNA two fragments with lengths of 20 pb and 58 pb are formed.
- the detection limit for genomic hazelnut DNA is approximately 50 pg.
- the present reaction was specific to each 100 ng of DNA of the following species: peanut, almonds, cashews, macadamia nuts, walnuts, pecans, pistachios, apricots, corn, soy, celery, cabbage, orange, tangerine, Brazil nut, wheat, rye, barley, oats , Spelled, buckwheat (see Fig. 1)
- the designated reaction vessels were prepared as in Example 1 with the difference that a number of reaction vessels with reference DNA in the presence of trehalose was dried and a number of reaction vessels with reference DNA without trehalose.
- the reaction vessels were then stored for 6 months at 37 0 C.
- the reaction vessels were filled with 12.5 ⁇ l double-concentrated MasterMix (AmpliTaqGold® MasterMix) and 12.5 ⁇ l water for amplification, sealed and placed in the PCR cycler (Eppendorf Mastercycler).
- the cycler profile was identical to the profile in Example 1.
- the subsequent gel electrophoresis showed a band at 78 bp in both reaction vessels.
- the intensity of the bands from the reaction vessels without trehalose was only about 1/3 of the band intensity of the amplificates from the reaction vessels with trehalose (see FIG. 2).
- reaction vessels were prepared as in Example 1 and 6
- the reaction vessels were filled with 12.5 ⁇ l double-concentrated MasterMix (AmpliTaqGold® MasterMix) and 12.5 ⁇ l DNA isolate for amplification, sealed and placed in the PCR cycler (Eppendorf Mastercycler).
- the DNA isolates contained hazelnut DNA in the amounts 100 pg, 50 pg, 25 pg, 6.25 pg and none
- primers are dried in the presence of 5 mmol / L trehalose, they thus retain their activity even on prolonged storage at elevated temperature.
- CaMAV-F3 with a concentration of 50 ⁇ mol / L, 0.45 ⁇ l of a second primer Ca-R05 with a concentration of 50 ⁇ mol / L, 0.625 ⁇ l of a probe CaMAV-SI with a concentration of 10 ⁇ mol / L, a 5 mMol / L trehalose solution and 0.475ul of water.
- this was dissolved 200 ⁇ g of genomic hazelnut DNA corresponding to 100 copies of the target sequence (amplicon sequence) each in 0.475 ⁇ l and added to the solution instead of the water. Drying was carried out for 3 hours at 4O 0 C under ambient pressure in a dry heat oven. The reaction vessels were then sealed with a foil and stored dark until used.
- reaction vessels according to the invention can be standardized so that they permit a PCR analysis by an end point determination. This is described here for the detection of Salmonella DNA
- PCR approach probe detection: Wells with predried primers and probe (PCRFast Salmonella, Lot RSAL_39239) were mixed with 12.5 ⁇ l MasterMix (AmpliTaq Gold® PCR MasterMix, Applied Biosystems No. 4318739). Then 12.5 ⁇ l of DNA isolates were added to the food samples, the strips were sealed and placed in the PCR thermocycler (STRATAGENE Mx 3005 P). The amplification was carried out with the following temperature profile: after 10 min. at 95 ° C followed 35 cycles with 30 sec at 95 0 C, 45 sec at 60 0 C and 30 sec at 72 ° C. The measurement of the fluorescence values (R load, excitation white light of a halogen lamp and emission measurement at 520 nm, no unit) at the end of the amplification gave the following fluorescence values in the end point determination.
- the two experiments show that the measurement distance between the positive and negative controls or the samples was so great in the fluorescence end point determination that it was possible to easily distinguish between the presence and absence of Salmonella in the food sample without any great effort in terms of metrology.
- the excitation was sufficient with the white light of a halogen lamp and the emission measurement at 520 nm (without unit). This allows a Salmonella analysis by means of PCR in very simply equipped laboratories.
- reaction vessels are then advantageously used in the relevant light wave range transparent vessels, preferably made of polycarbonate.
- reaction vessels prepared according to the invention molecular biological food analyzes can now be carried out simply and standardized. So there are innovative products available for the simple molecular biological detection of specific DNA fragments in food and feed.
- the prepared reaction vessels can be adapted for all relevant parameters from the areas allergens, GMO, animal species and hygiene.
- Sample conditioning protocol can be isolated. State of the art recommended and validated DNA processing kits are available and may be included with the packaging unit. After extraction of the DNA from the sample material, only two pipetting steps are necessary for processing the PCR: 12.5 ⁇ l of the sample DNA and 12.5 ⁇ l of doubly concentrated MasterMix, which already contains polymerase, nucleotides, magnesium chloride and buffer in optimal concentrations , are pipetted into the reaction vessel. The user removes the required amount of reaction vessels from the test kit and conveniently stores the unused reaction vessels. The reaction vessels are preferably arranged clearly in a rack analogous to a microtiter plate.
- the test or the reaction vessels with the reagents can be stored for up to 2 years at 2 to 10 ° C.
- the labeled reaction vessels additionally contain the control DNA in addition to the primers.
- the MasterMix can be obtained from leading suppliers such as Applied Biosystems Inc.
- the Universal MasterMix is adapted to all parameters, which means that only one MasterMix is required for the entire product line. This significantly reduces labor in the lab and makes the PCR safer and more reproducible.
- the temperature or cycler profile is nearly identical for all parameters and specified in the test kit description. This allows various parameters to be analyzed and determined simultaneously in one go. The user is able to assemble a macrochip himself (for example simultaneous screening of the allergens soy, hazelnut and peanut or several GMO parameters side by side).
- the detection is usually carried out in agarose gel with ethidium bromide. Selected parameters can also be provided in real time for processing in the block cycler.
- Test kit The following parameters are suitable, inter alia, for the test kit according to the invention: Food allergens: hazelnut, almond, walnut, pecan, Brazil nut, Cashew, Pistachio, Groundnut, Wheat / Barley / Rye, Wheat, Celery, Mustard, Sesame, Soy, Fish, Lupine.
- Animal species pork, beef, ruminant, mammal, chicken, turkey, duck, poultry, sheep, goat, horse, rodent, dog, cat.
- GMO Screen 35S, Screen nos, Roundup Ready Soya (RRS), Cauliflower Mosaic Virus (CMV), Maize MON810, Maize MON863, Maize BT176, Maize BT11, Maize GA21, Maize NK 603, Maize T25, Rice LL601, Rice LL62.
- Hygiene Salmonella spp., Listeria monocytogenes, Campylobacter (jejuni, coli, lari), EHEC, Sta-phylococcus aureus, Bacillus cereus, Yersinia enterocolitica, Clostridium perfringes, Shigella flexneri.
- reaction vessels according to the invention are: they test systems can be stored
- Molecular biology food analyzes play an increasingly important role in quality assurance. Using the methodology, specific DNA fragments can be detected by PCR until visualization. Unresolved analytical questions can now be solved with DNA analysis. Current examples include the specific detection of apricot kernels in marzipan or specific evidence of allergy-causing substances such as mustard or celery. PCR plays just as important a role in the identification of genetically modified food as the increasing pathogen-hygienic area. This allows pathogenic germs to be detected early and quickly. Storage times until the analytical release are considerably shortened. The reaction vessels according to the invention make it possible to standardize the PCR in all areas of the food industry and research laboratories.
Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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GB0911311A GB2457418B (en) | 2006-12-01 | 2007-12-03 | Packaging units, kits and processes for carrying out PCR |
EP07847703A EP2102358A1 (de) | 2006-12-01 | 2007-12-03 | Laboreinmalartikel für analyse und diagnostik |
CA002673929A CA2673929A1 (en) | 2006-12-01 | 2007-12-03 | Disposable laboratory articles for analysis and diagnosis |
JP2009538728A JP2010510789A (ja) | 2006-12-01 | 2007-12-03 | 分析や診断目的のための使い捨て可能な実験用具 |
US12/516,738 US20100068716A1 (en) | 2006-12-01 | 2007-12-03 | Disposable articles for analysis and diagnostics for a laboratory |
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DE102006056790.0 | 2006-12-01 | ||
DE102006056790A DE102006056790B3 (de) | 2006-12-01 | 2006-12-01 | Laboreinmalartikel für Analyse und Diagnosik |
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US (1) | US20100068716A1 (de) |
EP (1) | EP2102358A1 (de) |
JP (1) | JP2010510789A (de) |
CA (1) | CA2673929A1 (de) |
DE (1) | DE102006056790B3 (de) |
GB (1) | GB2457418B (de) |
WO (1) | WO2008065206A1 (de) |
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JP2010142229A (ja) * | 2008-12-19 | 2010-07-01 | F Hoffmann La Roche Ag | 反応化合物と安定化ポリメラーゼの乾燥組成物 |
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DE102008028908B3 (de) * | 2008-06-18 | 2009-12-31 | IfP Privates Institut für Produktqualität GmbH | Nachweis eines Analyten in einem wässrigen Medium |
DE102010038330A1 (de) | 2010-07-23 | 2012-03-01 | Aj Innuscreen Gmbh | Verfahren, Vorrichtung und Testkit für Molekularbiologische Reaktionen |
EP2574931B1 (de) | 2011-09-29 | 2017-03-22 | Qiagen GmbH | Trockenzusammensetzung mit einem Steuerfarbstoff |
WO2013053855A1 (en) | 2011-10-11 | 2013-04-18 | Qiagen Gmbh | Sample processing method and sample processing cartridge |
EP2776577B1 (de) | 2011-11-07 | 2017-01-11 | Qiagen GmbH | Lyse-verfahren und lyse-zusammensetzung |
EP2730653A1 (de) | 2012-11-07 | 2014-05-14 | QIAGEN GmbH | Verfahren zum Lysieren einer festen biologischen Probe |
JP6474391B2 (ja) * | 2013-06-11 | 2019-02-27 | ビオカルティ ナームローゼ フェノーツハップBiocartis NV | 長期貯蔵のための生体分子乾燥方法 |
JP6403809B2 (ja) * | 2014-06-18 | 2018-10-10 | ルミネックス コーポレーション | 安定化させた凍結乾燥物質を作製するための方法 |
CN113789375A (zh) * | 2021-10-14 | 2021-12-14 | 联合基因生物科技(上海)有限公司 | 一种基于硅基微流片的cyp2c19基因分型的检测试剂、试剂盒和方法 |
CN114264811A (zh) * | 2021-12-24 | 2022-04-01 | 成都诺和生物科技有限公司 | 一种流式荧光定量检测冻干试剂及试剂盒 |
CN117248000B (zh) * | 2023-11-20 | 2024-03-15 | 深圳市易瑞生物技术股份有限公司 | 一种用于多重荧光pcr的冻干保护剂、冻干反应体系和包含其的试剂盒及用途 |
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ES2180416B1 (es) * | 2001-03-12 | 2004-06-01 | BIOTOOLS BIOTECHNOLOGICAL & MEDICAL LABORATORIES, S.A. | Procedimiento para la preparacion de mezclas de reaccion estabilizadas, total o parcialmente desecadas, que comprenden, al menos, una enzima, mezclas de reaccion y kits que las contienen. |
GB0414815D0 (en) * | 2004-07-02 | 2004-08-04 | Secr Defence | Method for stabilising reagents which are useful for nucleic acid amplification |
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2006
- 2006-12-01 DE DE102006056790A patent/DE102006056790B3/de not_active Expired - Fee Related
-
2007
- 2007-12-03 EP EP07847703A patent/EP2102358A1/de not_active Withdrawn
- 2007-12-03 WO PCT/EP2007/063192 patent/WO2008065206A1/de active Application Filing
- 2007-12-03 US US12/516,738 patent/US20100068716A1/en not_active Abandoned
- 2007-12-03 CA CA002673929A patent/CA2673929A1/en not_active Abandoned
- 2007-12-03 JP JP2009538728A patent/JP2010510789A/ja active Pending
- 2007-12-03 GB GB0911311A patent/GB2457418B/en not_active Expired - Fee Related
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010142229A (ja) * | 2008-12-19 | 2010-07-01 | F Hoffmann La Roche Ag | 反応化合物と安定化ポリメラーゼの乾燥組成物 |
JP2015091261A (ja) * | 2008-12-19 | 2015-05-14 | エフ.ホフマン−ラ ロシュ アーゲーF. Hoffmann−La Roche Aktiengesellschaft | 反応化合物と安定化ポリメラーゼの乾燥組成物 |
Also Published As
Publication number | Publication date |
---|---|
GB0911311D0 (en) | 2009-08-12 |
GB2457418A (en) | 2009-08-19 |
US20100068716A1 (en) | 2010-03-18 |
JP2010510789A (ja) | 2010-04-08 |
GB2457418B (en) | 2010-09-15 |
DE102006056790B3 (de) | 2008-01-17 |
EP2102358A1 (de) | 2009-09-23 |
CA2673929A1 (en) | 2008-06-05 |
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