Explain why a semi-log plot should be used for determining antigen concentration by ELISA.

What ingredients are used to develop a Suppositories dosage form? Justify the uses of each ingredient. Please answer at your own words.

You are tasked with measuring the quantity of prostate specific antigen (PSA) in a urine sample using an ELISA strategy. Describe and schematically depict how you would perform the test given the following materials: anti-PSA, biotinylated anti-PSA, streptavidin-HRP, HRP substrate kit (HRP = horse radish peroxidase).

Following is the data and notice that it is a terrible idea to culture hMSCs longer than 10 days. You’re strongly Days # cells0 50001 75002 125003 125004 218005 287006 530007 1143008 1653009 19200010 19200011 11680012 8950013 8830014 78300 Part1 You are working for a start-up that is pursuing a clinical trial. The trial involves grafting hMSCs intopatients suffering from interveterbral disc disease using a degradable polymer scaffold. You are going to 3Dprint a porous cylindrical scaffold that is 2 cm in radius and 1 cm in height (matching the dimensions of adegenerated disc). Assume a porosity of 50%. You will fill available volume of the scaffold with hMSCs at adensity of 1 million cells per cm3. Based on the data above, what starting number of cells will you use andhow long will it take you to get enough cells for the trial? Part2The trial is a failure (patients did not report any reduction in back pain). Your team wants to try againusing 85% hMSCs and 15% nucleus pulposus cells .…

What is the importance of washing the ELISA plate?

Describe the purposes of positive and negative controls; identify in an experiment like a test for HIV, which portions are positive and negative controls and which is (are) the test.

Briefly describe two limitations of an ELISA

State two reasons behind using the blocking buffer in ELISA experiment.

In an indirect ELISA what does the secondary antibody do (i.e., what purpose does it serve)? Edit View Insert Format Tools Table

What does -log(p-value) tell in immunoprecipitation mass spectrometry? What does log2 Fold change say? Generally, what does the graph of immunoprecipitation mass spectrometry tell (ie. how to read its graph)?