Product Code:
Malaria Detection Microscopes -This
a new method for identifying the malaria parasite in the peripheral
blood. It involves staining of the centrifuged and compressed red cell
layer with acridine orange and its examination under UV light source. It
is fast, easy and claimed to be more sensitive than the traditional
thick smear examination.
Method: The tube is a high-precision glass hematocrit tube, pre-coated
internally with acridine orange stain and potassium oxalate. It is
filled with 55-65 micro liters of blood from a finger, ear or heel
puncture. A clear plastic closure is then attached. A precisely made
cylindrical float, designed to be suspended in the packed red blood
cells, is inserted. The tube is centrifuged at 12,000 rpm for 5 minutes.
The components of the buffy coat separate according to their densities,
forming discrete bands. Because the float occupies 90% of the internal
lumen of the tube, the leukocyte and the thrombocyte cell band widths
and the top-most area of red cells are enlarged to 10 times normal. The
tube is placed on the tube holder and examined using a standard white
light microscope equipped with the UV microscope adapter, an
epi-illuminated microscope objective. Fluorescing parasites are then
observed at the red blood cell/white blood cell interface. The key
feature of the method is centrifugation and thereby concentration of the
red blood cells in a predictable area of the tube, making detection
easy and fast. Red cells containing Plasmodia are less dense than normal
ones and concentrate just below the leukocytes, at the top of the
erythrocyte column. The float forces all the surrounding red cells into
the 40 micron space between its outside circumference and the inside of
the tube. Since the parasites contain DNA which takes up the acridine
orange stain, they appear as bright specks of light among the
non-fluorescing red cells. Virtually all of the parasites found in the
60 microliter of blood can be visualized by rotating the tube under the
microscope. A negative test can be reported within one minute and
positive result within minutes. is a new method for identifying the
malarial parasite in the peripheral blood. It involves staining of the
centrifuged and compressed red cell layer with acridine orange and its
examination under UV light source. It is fast, easy and claimed to be
more sensitive than the traditional thick smear examination.
SPECIFICATIONS of Malaria Detection Microscopes:
Coaxial Binocular Microscope,
UV adapter
Excitation Filter D470/40x -- 8 mm dia, 3 mm thick (Excitation (x)
filter should be positioned with the arrow pointing toward the specimen,
toward the inside of the cube, and away from the light source.),
Dichroic Beam Splitter 500 DCLP, 7.8x10.95x0.75mm (Dichroic mirrors
should be mounted with the coated surface towards the light source,
excitation filters, and the specimen).
Barrier Filter E5151PV2, 9.90mm dia, 3mmthick (Emission (m) filters
should be placed with the arrow pointing towards the specimen, towards
the inside of the cube, and away from the detector / eye),
62x objective (gives sharp image of plasmodium vivax, phalciparum and shizhont etc),
Focusing lens Passes white light from illuminator to the excitation filter.(size 13mm or above),
Standard 36 TPI Threading Assures adaptability to all .