Preparation of PEI for primary coating of MaxOne (neuronal cultures)

Yonatan Katz

Published: 2024-06-26 DOI: 10.17504/protocols.io.j8nlk8dy6l5r/v1

Abstract

Polyethyleneimine (PEI) coating to enhance cell adhesion on MaxOne chips. PEI coating is followed by Laminin coating.

Steps

Materials

1.

0.07% PEI solution preparation - Primary coating

2.

Prepare 100 mL of 1X borate buffer:

5mL

95mL

3.

7% PEI stock solution :

1.4mL

8.6mL

Mix 0h 30m 0s using a magnetic stirrer until fully dissolved

(can be stored in 0.5 mL aliquots at -20°C for 1 month).

Where is it sterilized? -

4.

final 0.07% PEI solution

0.5mL in

49.5mL

filter through a 0.22 μm filter unit before use!

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