Modified gold surfaces by poly(amidoamine) dendrimers and fructose dehydrogenase for mediated fructose sensing

► Employment of cysteamine/PAMAM dendrimer/FDH modified gold electrode for the determination of fructose. ► The linear range for the determination of fructose was from 0.25 to 5.0 mM. ► Application for fructose detection in beverages.