The Human Defensin Beta 2 (DEFB2) ELISA Kit is a powerful tool for detecting and quantifying levels of defensin beta 2 in human biological samples such as serum, plasma, and cell culture supernatants. With its high sensitivity and specificity, this kit delivers accurate and reproducible results, making it an invaluable asset for researchers in various fields.Defensin beta 2 is a critical component of the innate immune system, known for its antimicrobial properties and ability to combat pathogens. It also plays a role in inflammation and wound healing, making it a key player in the body's defense mechanisms.
By measuring defensin beta 2 levels, researchers can gain insights into immune responses, infectious diseases, and inflammatory conditions, paving the way for new therapeutic approaches.Whether studying infectious diseases, immune disorders, or inflammatory conditions, the Human Defensin Beta 2 ELISA Kit provides researchers with a reliable and efficient method for analyzing defensin beta 2 levels. Trust in this kit to deliver accurate results and drive impactful discoveries in your research.
Matrices listed below were spiked with certain level of recombinant the index and the recovery rates were calculated by comparing the measured value to the expected amount of the index in samples.
Matrix
Recovery range (%)
Average(%)
Serum (n=5)
83-99
91
EDTA plasma (n=5)
80-99
89
Heparin plasma (n=5)
82-99
90
Linearity:
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of the index and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample
1:2
1:4
1:8
1:16
Serum (n=5)
82-96%
83-98%
81-99%
93-101%
EDTA plasma (n=5)
88-101%
86-95%
90-102%
80-93%
Heparin plasma (n=5)
80-91%
82-90%
95-104%
79-95%
Intra-assay Precision:
Intra-Assay: CV <10%. 3 samples with low, middle and high level the index were tested 20 times on one plate, respectively.
Inter-assay Precision:
Inter-Assay: CV <12%. 3 samples with low, middle and high level the index were tested on 3 different plates, 8 replicates in each plate.
Stability:
The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage conditions. Note: To minimize unnecessary influences on the performance, operation procedures and lab conditions, especially room temperature, air humidity and incubator temperatures should be strictly regulated. It is also strongly suggested that the whole assay is performed by the same experimenter from the beginning to the end.
Step
Protocol
1.
Prepare all reagents, samples and standards
2.
Add 100µL standard or sample to each well. Incubate 2 hours at 37°C
3.
Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C
4.
Aspirate and wash 3 times
5.
Add 100µL prepared Detection Reagent B. Incubate 1 hour at 37°C
6.
Aspirate and wash 5 times
7.
Add 90µL Substrate Solution. Incubate 15-25 minutes at 37°C
8.
Add 50µL Stop Solution. Read at 450nm immediately.
