Biomedical Engineering Reference
In-Depth Information
hCG
bound
anti-hCG
antibody-enzyme conjugate
Positive test
Positive test
a
Monoclonal
anti-hCG Ab-enzyme
conjugates
b
c
Capillary action
hCG
hormone
R
T
C
Polyclonal
anti-hCG Ab
Anti-mouse
Ab
Dye substrate
Positive test
Positive test
e
Positive test
d
f
Polyclonal
antibodies
Anti-mouse
antibody
Positive test
Positive test
g
h
Conjugated
enzyme
Dye
substrate
Test zone: positive
Control zone: positive
FIGURE 4.9
Home.pregnancy.test.(Adapted.from.“
The HCG Pregnancy Test: How It Works
,”.a.video.developed.by.Susana.Maria.Halpine.for.the.
Kuby
Immunology
.Web.site..Copyright.(2000).W.H..Freeman.and.Sumanas,.Inc.)
