what material do you recommend for blocking nano-gold surfaces in electrochemichal biosensors and why it is useful?

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Nachiket Gokhale

Can you please elaborate more?

Based on my current understanding, you intend to block the nano-gold surfaces; if so, then you can go for any other proteins.

Proteins strongly bond on the gold surface due to surface energy, intermolecular forces, hydrophobicity, and ionic or electrostatic interaction

High density polymers can also be used.

Vahid Abbasi

Nachiket Gokhale ok, proteins and polymers are good. but witch one is better and why? I want to know which one blocks better?