NEST 2 mL 96-Well Deep Well Plate, v-bottom, polypropylene, sterile, DNase, RNase, pyrogen and endotoxin free
Conforms to SBS and ANSI requirements
Centrifugal strength up to 3000g
Square well
50 count
Labware definition is available for immediate use in Opentron’s Labware Library
NEST 2 mL 96-Well Deep Well Plate, v-bottom, polypropylene, sterile, DNase, RNase, pyrogen and endotoxin free
Conforms to SBS and ANSI requirements
Centrifugal strength up to 3000g
Square well
50 count
Labware definition is available for immediate use in Opentron’s Labware Library
Biocolor’s Purple-Jelley assay kit is the perfect tool for accurate measurement of hyaluronic acid / Hyaluronan levels in your samples. This colorimetric assay is optimised for quantitative analysis in-vivo, tissue-derived hyaluronic acid / Hyaluronan and includes full step-by-step instructions.
Colorimetric Detection (655nm) (Endpoint)
Hyaluronic acid, in its hydrated form, is a unique carbohydrate polymer, often referred to as a ‘gentle giant.’ It consists of a lengthy, flexible, non-branching chain with a repeating disaccharide pattern. This disaccharide is composed of alternating uronic acid and aminosugar units.
Discovering the J-Aggregate Effect in Cyanine DyesIn 1936, Edwin Jelley made a fascinating observation, documented it in a letter to Nature (Nature 138, 1009 – 1010). He noted a peculiar behaviour of certain cyanine dyes, that when dissolved in 5 M NaCl, they dyes exhibited a third absorbance peak at a longer wavelength, around 650nm. In deionized water, however, they displayed only a double peak at approximately 540nm and 570nm. The 650nm peak in concentrated dye solutions resulted from the aggregation of dye molecules and was later termed a ‘J-aggregate,’ in honor of Edwin Jelley. The J-aggregate is known as a supra-molecular complex, formed by stacking individual dye molecules.
Subsequent research in the 1960s, notably by Kay et al. (J. Physical Chem. 68, 1896 – 1906), revealed that various biological polymers, including proteins, DNA, polar lipids, and glycosaminoglycans, could also induce this third absorbance peak. This phenomenon led to the development of the Purple-Jelley assay, named after the purple color of the dye reagent and Edwin Jelley himself.
During the assay, hyaluronic acid is selectively purified during the assay sample preparation protocol. This is then reacted with the Purple-Jelley dye reagent, and the absorption of the characteristic third wavelength recorded. By comparison with a calibration curve the hyaluronic acid content of the sample can be measured.
Step 1. The assay protocol takes tissue samples through a sequential sample preparation protocol which involves enzymatic protein digestion, followed by precipitation and purification of GAGs, culminating in the precipitation of purified Hyaluronic acid.
Step2. The processed sample is then incubated for 10 minutes with the Purple-Jelley dye reagent, forming a coloured product which can be measured spectrophotometrically.
Step 3. The Hyaluronic acid content of unknown samples can be calculated by comparison against a calibration curve prepared using a standard comprising hyaluronic acid (supplied with the kit).
10 – 100µg/ml
10µg/ml
Colorimetric Detection (655nm) (Endpoint)
100 in total (allows a maximum of 46 samples to be run in duplicate alongside a standard curve).
In-vivo: Hyaluronic acid purified from in-vivo tissues. The kit protocol involves extraction and purification of hyaluronic acid prior to reaction with the Purple-Dye reagent.
This kit is designed for research use only. Not for use in diagnostic procedures.
Kit requires access to a centrifuge, as well as a spectrophotometer/colorimeter capable of colorimetric, absorbance detection at 655nm.
Specific sample preparation protocols may require customer to provide further reagents, consult assay manual for further information.
Mode of ActionAssay SpecificationsKit Contents
1. Purple-Jelley Dye Reagent (1x 20ml)
2. Hyaluronan Reference Standard (1x 5ml, 0.2mg/ml soluble Hyaluronic Acid)
3. Precipitating Reagent (2x 34ml)
4. Sodium Chloride (1x 20ml)
5. Cetylpyridinium Chloride (1x 20ml)
6. TRIS-buffered Saline (5x tablets)
7. 2ml screw-cap tubes for preparation of samples.
8. Assay kit manual
NB: Additional reagents may be required for sample preparation prior to assay. Consult manual or contact us for further details.
Biocolor’s Purple-Jelley assay kit is the perfect tool for accurate measurement of hyaluronic acid / Hyaluronan levels in your samples. This colorimetric assay is optimised for quantitative analysis in-vivo, tissue-derived hyaluronic acid / Hyaluronan and includes full step-by-step instructions.
Propargyl-PEG4-(CH2)3-CO2H is a linker containing a propargyl group at one end and a carboxylic acid at the other end. The carboxylic acid reacts with amine groups in the presence of activators (EDC or HATU). Under the catalyzation of copper, the propargyl group forms linkage with azide group of biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG4-(CH2)3-CO2H is a linker containing a propargyl group at one end and a carboxylic acid at the other end. The carboxylic acid reacts with amine groups in the presence of activators (EDC or HATU). Under the catalyzation of copper, the propargyl group forms linkage with azide group of biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Synovial fluid is secreted into the joint cavity from the inner membrane of synovial joints. Synovial fluid is a plasma ultrafiltrate which contains proteins derived from both the blood plasma and produced by cells within the joint tissues. It lubricates the articulating joints as well as supplies oxygen and nutrients while removing carbon dioxide and metabolic wastes from the chondrocytes in the surrounding cartilage. Septic arthritis is usually caused by bacterial, viral or fungal infections to the synovial fluid. Staphylococcus aureus is the most common bacterial infection causing Septic arthritis. Diagnosing Septic arthritis is done through joint fluid (synovial fluid) analysis, blood tests or imaging tests.
Norgen’s Synovial Fluid Bacterial Genomic DNA Isolation Kit provides a fast, reliable and simple procedure for isolating the highest quality and the highest quantity of bacterial genomic DNA from various amounts of synovial fluid ranging from 1 mL up to 10 mL. Purification is based on using Norgen’s proprietary resin separation matrix. The kit is designed to isolate all Gram +ve and Gram -ve strains. Moreover, the kit allows the user to elute the purified bacterial genomic DNA into a flexible elution volume ranging from 25 µL to 50 µL. The purified bacterial gDNA is eluted in an Elution Buffer that is compatible with all downstream applications including PCR, qPCR, methylation-sensitive PCR, Southern Blot analysis and NGS.
Figure 1 / 2
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| Kit Specifications | |
| Maximum Input | 2 x 109 bacterial cells |
| Column Binding Capacity | 25 μg |
| Average Yield | up to 20 µg |
| Time to Complete 10 Purifications | 45 minutes |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. These reagents should remain stable for at least 1 year in their unopened containers.
| Component | Cat. 67900 (50 preps) |
|---|---|
| Precipitation Solution B | 15 mL |
| Lysis Buffer T | 6.5 mL |
| Solution BX | 28 mL |
| Wash Solution A | 38 mL |
| Elution Buffer B | 8 mL |
| Micro Spin Columns | 50 |
| Collection Tubes | 50 |
| Elution Tubes (1.7 mL) | 50 |
| Product Insert | 1 |
