| Description | CLDN9 Human Pre-designed siRNA Set A contains three designed siRNAs for CLDN9 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components CLDN9 siRNA-1: 5 nmol (HPLC) CLDN9 siRNA-2: 5 nmol (HPLC) CLDN9 siRNA-3: 5 nmol (HPLC) siRNA Negative Control:CLDN9 Human Pre-designed siRNA Set A contains three designed siRNAs for CLDN9 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control. Components CLDN9 siRNA-1: 5 nmol (HPLC) CLDN9 siRNA-2: 5 nmol (HPLC) CLDN9 siRNA-3: 5 nmol (HPLC) siRNA Negative Control: 5 nmol (HPLC) FAM-labeled siRNA Negative Control: 5 nmol (HPLC) GAPDH siRNA Positive Control:5 nmol (HPLC)... Read More | 1、Product attributeShelf life: 24 monthsReaction time：long (up to 45 minutes) at 20-37°CLot-to-lot variation：<10%Boiling point : 100℃pH-Value (at 20 °C): 9.0-9.8 Density (20℃) : 1.0302 g/cm³Water solubility: easily solubleAppearance: colourless to 1、Product attributeShelf life: 24 monthsReaction time：long (up to 45 minutes) at 20-37°CLot-to-lot variation：<10%Boiling point : 100℃pH-Value (at 20 °C): 9.0-9.8 Density (20℃) : 1.0302 g/cm³Water solubility: easily solubleAppearance: colourless to light yellow liquidOdour: odourlessIncubation temperature: 20-37 °CLight sensitiveHeat sensitive 2、Requirements for storage rooms and vessels1.Keep container tightly closed.2.Keep cool. protected from light3. Do not store together with: Oxidizing agent. 4. Contaminated or leaked out substrate solution from damaged bottles should not be used anymore and has to be destroyed.5. Use isolated containers with some cool bags for transport.6. Spontaneous decay will increase the background. If stored at room temperature, the velocity of the decay will increase. Thus, both storage and transport at room temperature should be avoided. Nevertheless, the activity of the solution is not affected by storage at room temperature. The solution still works beyond the expiry date, but some applications, especially those including visual evaluation, may be hampered by increased background. 3、Effective Components and Principle of FunctionIn different buffer solutions (pH = 9.5), with supplementation if required, the effective componentpara nitrophenyl phosphate (pNPP) is dissolved. Alkaline Phosphatase transfers the phosphate residue to an acceptor. Under alkaline conditions a yellow colour occurs, resulting from the formed nitrophenol. 4、Biosafety informationThis mixture is not classified as hazardous in accordance with Regulation (EC) No 1272/2008； 5、Advantage1. Signal yield comparable to competitor ready-to-use solutions2. Broad measurement range3. Very low background signals4. Very low blank drift during long-term storage (<0.15 AU within 24 months)5. High colour stability after reaction stop with this product and other commonly used stopping solutions 6、Instruction for usageFor bottling consider the following instructions:• Work in a dust free and darkened room.• Keep the solution as cool as possible.• Avoid contact of the solutions with any metal parts• Clean all instruments and vessels very extensively.• Wear powder-free gloves during bottling.• Close the bottles immediately to minimize the influence of light and dust.• Use clean bottles that are impermeable to light made from HDPE or PP. 7、 General Instructions for the Use in Blotting Systems Only qualified laboratory staff, who are familiar with the basics of immunological methods, are allowed to use these solutions.The substrate solutions can be used in qualitative and quantitative ELISA procedures.When using 96-well microtiter plates, adding 100 µL of substrate per well after incubation and washing is recommended. After substrate incubation the reaction can be stopped and the photometric measurement can be carried out. Using higher incubation temperatures (37° C) may shorten the incubation time. The reaction can be stopped by using the special developed solution stop. The use of other commercially available stop solutions cannot safely exclude a further increase of the signal. Addition of a stopping solution does not change the general shape of the spectrum. The unstopped and the stopped solution should be measured at 405 nm and the background correction: should be measured at 620 nm... Read More | ProductsThis product is a high purity genomic DNA extract from 293T cells, agarose gel (0.7%) electrophoresis showed that the size of the DNA extract is more than 15Kb, and basically no degradation, the product is ultimately preserved in TE Buffer, which can be widely used in molecular biology ProductsThis product is a high purity genomic DNA extract from 293T cells, agarose gel (0.7%) electrophoresis showed that the size of the DNA extract is more than 15Kb, and basically no degradation, the product is ultimately preserved in TE Buffer, which can be widely used in molecular biology experiments, such as PCR, enzyme digestion, hybridization, microarray analysis, and other molecular biology experiments.The product was quantified using NanoDrop One at a concentration of 200 ng/µL.Preparation and precautions before useLong-term storage at -20˚C is recommended. Before use, the bottle should be removed from the refrigerator and equilibrated to room temperature and centrifuged before opening the cap for use. Samples should be restored to the sealed state as soon as possible after opening.How to use (take qPCR experiment as an example)1. Amplification template preparationThe samples to be detected were diluted with TE (10 mM Tris-Cl, pH 8.0,1 mM EDTA), and the concentration after dilution was as close as possible to the range of 0.05-10 ng/µL. The samples were placed on ice at 4°C and set aside.2. Standard dilution: according to the following table, firstly dilute Human DNA Standard 1 (100ng/uL) with TE to make 5 different concentrations of standards according to the table below. 10ng/µL of DNA Standard 1 (Std. 1) can be stored stably at -20℃ for 1 month; Std2-5 can only be used on the same day, and should be placed at 4℃ or on ice when not in use for the time being after preparation. When not used temporarily after preparation, it should be stored at 4℃ or on ice.styleCorresponding concentration (ng/µL)Minimum dilution volume (in µL)Std.11010 [100 ng/µL DNA Standard 1] + 90 TEStd.22.520 [Std. 1] +60 TEStd.30.62520 [Std. 2] +60 TEStd.40.1562520 [Std. 3] +60 TEStd.50.039062520 [Std. 4] +60 TE3. qPCR reaction system preparationThe cryopreserved reagents to be used were completely thawed and mixed by inversion several times before preparation, and then briefly centrifuged and prepared for use. 20 µL of the base reaction system was as follows.The base reaction system for 20 µL was as follows:reagents20µL reaction system2×qPCRMix10µLPrimerMixXµLProbeMixXµLTemplate4µLddH2OMake up to 20 µLNote: High Rox model: add 1 µL of 50×High Rox per 50 µL of reaction system; Low Rox model: add 1 µL of 50×High Rox per 500 µL of reaction system.Usually, better results can be obtained with a primer concentration of 0.2 µM, and 0.1-1.0 µM can be used as a reference for setting the range.The concentration of the probe used is related to the fluorescent quantitative PCR instrument used, the type of probe, and the type of fluorescent labeling substance, so please refer to the manual of the instrument or the specific requirements for the use of each fluorescent probe for the adjustment of the concentration during actual use.Prepare a sufficient amount of reaction system mixture as required. After the reaction system has been prepared and mixed thoroughly, add 16 µL per well to the reaction wells. Then add the prepared standard and diluted sample into the corresponding reaction wells, the volume of addition is 4µL/well. TE was added to the blank control tube, and the same amount of TE was added at 4 µL/well.It is recommended to use 20 µL for the reaction, if you need to perform a smaller system reaction, reduce the system components in equal proportion.4. qPCR reaction programThe following is an example of our GoldStar Probe Mixture reaction conditions, which should be improved and optimized according to the PCR product template, primer structure and target fragment size.movetemptimingcirculatepremutability95°C10min1denaturation95°C10sec55Annealing/Extension60°C30sec5Data analysis1. Standard curve productionThe standard curve was plotted with reference to the Excel sheet for data processing. The correlation coefficient R2 of the standard curve should not be lower than 0.98, and the slope should be between -3.1 and -3.6 when the Ct value is the vertical coordinate. If the parameters of the standard curve are unreasonable, it is recommended to repeat the experiment... Read More | Lipase PS is generally used in the enantioselective transesterification and hydrolysis. Applications include: 1.Lipase catalyzed transesterification of prochiral pyrimidine acyclonucleoside. 2.Lipase catalyzed hydrolysis of diacetylated pyrimidine acyclonucleosides. 3. Enantiomer selective acylationLipase PS is generally used in the enantioselective transesterification and hydrolysis. Applications include: 1.Lipase catalyzed transesterification of prochiral pyrimidine acyclonucleoside. 2.Lipase catalyzed hydrolysis of diacetylated pyrimidine acyclonucleosides. 3. Enantiomer selective acylation of racemic alcohols in continuous-flow bioreactors... Read More | Inquire |