8 pages/≈2200 words
Biological & Biomedical Sciences
Enzyme Linked Immunosorbent Assay (ELISA) Lab Report (Lab Report Sample)
Conduction of a detailed lab report on ENZYME LINKED IMMUNOSORBENT ASSAY (ELISA)source..
ENZYME LINKED IMMUNOSORBENT ASSAY (ELISA) LAB REPORT
Name of Class
Enzyme Linked Immunosorbent Assay (ELISA) Lab Report
Nhat My Vu - 000952223
Enzyme Linked Immunosorbent Assay abbreviated as ELISA is a quantitative analytical technique used primarily in immunology. The technique is carried out to detect and measure or estimate the quantities of antibodies using ligand conjugated to an enzyme that makes a substrate change its color CITATION Del11 \l 1033 (Delves, et al., 2011).This test can be used to determine if you have antibodies related to certain infectious conditions. More often than not, an Elisa test serves as a diagnosis to HIV/AIDS, Lyme disease, pernicious anemia and syphilis, among many other infections. CITATION Kin15 \l 1033 (Kinman, 2015). An ELISA test serves as a screening tool before in-depth tests are ordered. Supposing one shows the signs and symptoms of a given condition, an ELISA test is administered to determine the presence or absence of the condition. CITATION Kin15 \l 1033 (Kinman, 2015) The purpose of this lab is to determine the presence of serum antibodies that target the HIV antigen. There are four different types of ELISA techniques, which include are direct ELISA, indirect ELISA, capture ELISA (sandwich), and competitive ELISA. The two main ELISA techniques that detect the amount of antigens or antibodies are direct ELISA and indirect ELISA. Direct ELISA involves the surface of the well of the strip covered directly with antibody or antigen, in other words the wells coated directly with primary antibodyCITATION Ayd15 \l 1033 (Aydin, 2015). Indirect ELISA involves the attachment of the antigen to the polystyrene plate, but in this case, the primary antibody is not labeled. An enzyme-conjugated secondary antibody is then added. This format is used most often to detect specific antibodies fin sera. Sandwich ELISA involves the attachment of a capture antibody to the polystyrene plate. Samples containing known or unknown antigen are then added in a matrix or buffer that will minimize attachment to the solid phase. An enzyme-labelled antibody is then added for detection. The competitive ELISA involves the simultaneous addition of competing antibodies or proteins. The decrease in signal of samples where the second antibody or protein is added gives a highly specific result. CITATION Eli \l 1033 (Anon., n.d.) This experiment was using indirect ELISA technique to test the two unknown samples given for the specific antibodies that is in the presence of HIV, and to define the amount of antibody in each patient sample CITATION Dye \l 1033 (Dyer & Pecorino, n.d.). Moreover, this lab involved a serial dilution, which is a method, used to determine an antibody concentration by measuring the change of the color spectrometically (e.d). The ELISA test is used in many different fields such as for biological purposes, nutrition, biomedical, and pharmaceutical. In biomedical fields, ELISA is used in research and diagnosis laboratories to detect the concentration of different things such as concentration of hormone, peptides, and proteinsCITATION Ayd15 \l 1033 (Aydin, 2015)
Referred to the Practical Handbook Protocol CITATION Dye \l 1033 (Dyer & Pecorino, n.d.)
1 Standard Calibration Data
Mean Absorbance of Whole Class Data
Table 1: Individual group absorbance and the whole class absorbance mean, this table used to graph the standard calibration curve. (Data in green field represent the range of concentration data (16ng/ml â€“ 500ng/ml) was used for analysis, which is used to calculate the concentration of control samples and unknown samples)
Figure 1: Standard Calibration Curve of individual group vs absorbance means of the whole class data. An individual group calibration curve compared to the whole class mean curve is slightly different even though the both curve having increasing trend but the individual group curve is fluctuated for a little bit.
1 Each group data of the whole class data set.
Patient A Abs
Patient A Conc
Patient B Abs
Patient B Conc
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