Retention of binding ability of (PLL-SWCNT2)-(PLL-Ab) assembly on equilibrating in air at 42°C. Thermally equilibrated assembly was subjected to BSA blocking, then incubated with Ag as described earlier and steady state amperometric response on addition of hydrogen peroxide was measured (2000 rpm, 0.1 mM H2Q, 4 μM H2O2 additions, 50 pmol mL−1 Ag, and 0.5 mg mL−1 Ab).