Fresh tissue

For the fresh tissue, it should be washed the blood away with PBS and preserve in -80°C immediately

At -80°C

With dry ice

All samples need to be uniquely marked and the markings are clearly identifiable

Regular fixed tissue

The volum of the regular tissue is within 2cm*2cm*0.5cm in general. Fixation is to keep the original shape of the tissue as much as possible and clean up the blood and excess parts; the volum of fixative fluid should be at least 10 times of the tissue, and the container should be big enough to hold the tissue without squeezing it. The type of fixative fluid and the fixed duration should be marked

At ambient temperature

At ambient temperature

Special fixed tissue

For tissue like testicle, eyeball, spinal cord, muscle, and so on: the correspondent special fixative fluid is recommended for fixation to ensure the fixing effect.

Paraffin embedded tissue

The tissue should be embedded in a standard paraffin embedding cassette, and paraffin wax should be evenly bonded to the tissue with no crack; the thickness of the wax block is determined by the number of slices required, and the effective thickness should be at least 0.1 cm. Provide the paraffin embedded tissue made within six months, otherwise the antigens of the paraffin may be lost and fail to detect the protein when performing immunohistochemistry.  

At ambient temperature

At ambient temperature

Tissue section

It needs to pick up the section with anti-drop slides and mark the thickness of the section, and the temperature and duration of baking. The tissue should be near the lower third of the slice

At 4°C

With ice bag

Cell climbing sheet

Use the special cell climbing sheet for the orifice plate. After the cell climbing sheet is fixed, wash it with PBS for 2 to 3 times, store it in PBS, and seal the orifice plate with sealing film. Each climbing sheet shall have a unique mark on the orifice plate cover and electronic grouping information to prevent the mark from being blurred during transportation.

At ambient temperature

At ambient temperature

Plant example

Fix the fresh tissue with FAA and its degree of lignification is not high; for thinner blades, if parallel blade slicing is required, it is difficult to ensure complete cutting; the diameter of the rhizome should be larger than 1 mm.  

At ambient temperature

At ambient temperature

Antibody

There should be clear marks to identify the antigens on the containers and the instructions should be attached. The amount of antigens should be larger than the experiment required.

For tissue sections and tissue chips, calculate the amount of antibody according to a section of 100 μl after dilution; for the round coverslips of the 24 well plate cell climbing slide, calculate the amount of antibody according to a section of 100 μl after dilution; for the round coverslips of the 12 well plate cell climbing slide, calculate the amount of antibody according to a section of 400 μl after dilution

At -20°C

With ice bag or dry ice