Starch-based hydrogels were performed by Diels-Alder cross-linking reactions between furan-modified starch and a water soluble bismaleimide, with improving conducting properties by using graphene layers as active nanofillers. The characterization results demonstrated that the Diels-Alder reaction and the corresponding conditions for the hydrogel formation were appropriate. The effect of increasing the furan/maleimide ratio on the architecture of the hydrogels and on the morphological, rheological and swelling properties was thoroughly evaluated. Effective network structure was obtained by increasing the cross-linker content leading to decreasing pore size and increasing storage modulus value of the final material. It was shown that the swelling behavior of hydrogels was mainly governed by the hydrophilic character of bismaleimide. Graphene nanosheets were added for the synthesis of nanocomposite hydrogel and it was characterized in terms of rheological properties, electrical conductivity and antimicrobial activity. The nanocomposite hydrogel presented enhanced mechanical performance, antimicrobial activity and increased conductivity values, up to a decade, indicating that conductive and active hydrogels could be satisfactory obtained, for a large range of potential applications such as biomed.

淀粉基水凝胶通过呋喃改性淀粉和水溶性双马来酰亚胺之间的Diels-Alder交联反应进行，并通过使用石墨烯层作为活性纳米填料来改善导电性能。表征结果表明，Diels-Alder反应和形成水凝胶的相应条件是合适的。彻底评估了呋喃/马来酰亚胺比例对水凝胶结构以及形态，流变性和溶胀性能的影响。通过增加交联剂含量导致减小的孔径和增加最终材料的储能模量值，可获得有效的网络结构。结果表明，水凝胶的溶胀行为主要受双马来酰亚胺的亲水特性支配。添加了石墨烯纳米片，用于合成纳米复合水凝胶，并根据流变性质，电导率和抗菌活性对其进行了表征。纳米复合水凝胶的机械性能，抗微生物活性和电导率值提高了多达十年，这表明导电和活性水凝胶可以令人满意地用于许多潜在的应用中，例如生物医学。