Elisa Detection Articles & Analysis
17 articles found
This customization can include the selection of specific cytokines, the type of sample (serum, plasma, tissue homogenates, etc.), and the detection method (ELISA, multiplex assays, etc.). Key Features of Customized Rabbit Cytokine Assays Species-Specific Reagents: These assays use antibodies and other reagents specifically developed for rabbit cytokines, ...
Proteins from these host cells can mix with the target product, so it is necessary to identify and quantify them through HCP residual detection.Enzyme-Linked Immunosorbent Assay (ELISA)This is a commonly used method that detects HCPs by using antibodies against host cell proteins. Although ELISA is very sensitive, its specificity may be limited ...
Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have strict guidelines requiring biopharmaceutical companies to detect and control HCP levels.Detection Methods1. ELISAEnzyme-linked immunosorbent assay (ELISA) is the standard method for HCP detection because it provides quick, quantitative results. However, it relies on ...
Therefore, pharmaceutical companies need to adopt effective methods to detect and quantify the residues of these host proteins.ELISA MethodOne of the common methods for detecting host protein residues is the Enzyme-Linked Immunosorbent Assay (ELISA). ...
For example, the US Pharmacopoeia stipulates that the range of HCP residues is 1-100 ng/mg.Highly sensitive and repeatable host protein detection methods are not only key to ensuring the safety and effectiveness of biological products, but also important parameters for production process control and process optimization. At present, the main methods for detecting ...
This is due to collagen molecules forming an extensive network through different types of cross-linking, making the collagen molecules insoluble and difficult to extract.At present, several types of analysis methods are available for collagen analysis:ELISA of Collagen Specific Propeptide DomainsThis method uses enzyme-linked immunosorbent assay (ELISA) to detect ...
Below are some commonly used methods for detecting host cell residuals: Host Cell DNA Residual Testing 1. qPCR (Quantitative Polymerase Chain Reaction) Quantitative detection of residual DNA is possible through primers and probes designed specifically for host cell DNA. 2. ...
HCP (Host Cell Proteins) are proteins produced by the host cells used in biopharmaceutical production, which may contaminate the final therapeutic product. The detection and quantification of HCPs are critical steps in the development and manufacturing process of biopharmaceuticals, as HCPs may have adverse effects on the safety, purity, and potency of the drug.WB (Western Blot) ...
Western Blot Western blot is a traditional biochemical detection method. By using specific antibodies against ubiquitin and the target protein, the level of ubiquitination of a specific protein can be detected. ...
Early detection of these disorders can lead to better treatment outcomes. The use of enzymes in disease diagnosis is not without its limitations. ...
When multiple cytokines are detected by traditional methods, the required sample size is large, the cost is high, and the detection range of ELISA is only 1 to 2 orders of magnitude. The luminex xMAP technology can detect multiple molecules in the same sample at the same time, and it is specific, rapid, flexible and reproducible, ...
The exosome pellet was resuspended with 175 µl of buffer and increasing amounts of the exosome suspension were loaded onto a plate prepared for ELISA. The CD9 protein was detected using the SBI rabbit anti-CD9 primary antibody and conjugated to SBI HRP goat anti-rabbit secondary antibody. ...
To begin to address this data gap, a spatial reconnaissance of fluvial microcystins (MC) concentrations was conducted in 75 wadeable streams in the Piedmont region during June 2014. Microcystins were detected using ELISA (limit = 0.10 µg/L) in 39% of the streams with mean, median, and maximum detected concentrations of 0.29, 0.11, and 3.2 µg/L, ...
An enzyme‐linked immunosorbent assay (ELISA) was developed and used to detect the Vtg‐derived yolk proteins and newly produced Vtg, and 9–56 d post‐hatching (dph) was determined as the Vtg‐blank period. Juveniles in this period was found to have lower baseline Vtg level than adult males and was considered an alternative test organism for ...
A sensitive, competitive indirect enzyme-linked immunosorbent assay (ELISA) was developed for the detection of triclocarban (TCC) in waters and sediments. ...
Polyclonal antibodies (Abs) for ATL were generated, and a highly specific microplate immunochemical assay, i.e., an enzyme‐linked immunosorbent assay (ELISA), for its detection was developed. The ATL ELISA exhibited I50 and I20 values of 0.15 ± 0.048 and 0.032 ± 0.016 ng/ml, respectively, and the Abs did not cross‐react with any of the tested ...
B. afzelii-specific antibodies in horse sera were detected by an indirect ELISA test. Results obtained from the sera were compared and a significant increase in the percentage of seropositive animals before and after pasturing in the endemic area has been observed.Keywords: lyme disease, Borrelia infections diagnosis, enzyme-linked immunosorbent assay, horses, ...