Modification of nanopores with TESPMA
This protocol is extracted from research article:
Biomimetic potassium-selective nanopores
Sci Adv, Feb 8, 2019; DOI: 10.1126/sciadv.aav2568

The modification solution was prepared by adding 50 mg of TESPMA to 5 ml of ultrapure water containing acetic acid (50 μl); the solution was stirred for 1 hour at room temperature. Nanopore silicon nitride chips were immersed in the solution at room temperature for 1 hour. After washing in deionized water, the chips were heated at 80°C for 20 min (34). TESPMA-modified nanopores were resized in 1 M KCl using the same procedure as described above.

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