{Reference Type}: Journal Article
{Title}: Novel aerogels based on supramolecular G-quadruplex assembly with intrinsic flame retardancy and thermal insulation.
{Author}: Yang L;Zhang H;Wang C;Jiao Y;Pang X;Xu J;Ma H;
{Journal}: J Colloid Interface Sci
{Volume}: 672
{Issue}: 0
{Year}: 2024 Oct 15
{Factor}: 9.965
{DOI}: 10.1016/j.jcis.2024.06.048
{Abstract}: The construction of supramolecular aerogels still faces great challenges. Herein, we present a novel bio-based supramolecular aerogel derived from G-Quadruplex self-assembly of guanosine (G), boric acid (B) and sodium alginate (SA) and the obtained GBS aerogels exhibit superior flame-retardant and thermal insulating properties. The entire process involves environmentally friendly aqueous solvents and freeze-drying. Benefiting from the supramolecular self-assembly and interpenetrating dual network structures, GBS aerogels exhibit unique structures and sufficient self-supporting capabilities. The resulting GBS aerogels exhibit overall low densities (36.5-52.4 mg/cm3), and high porosities (>95 %). Moreover, GBS aerogels also illustrate excellent flame retardant and thermal insulating properties. With an oxygen index of 47.0-51.1 %, it can easily achieve a V-0 rating and low heat, smoke release during combustion. This work demonstrates the preparation of intrinsic flame-retardant aerogels derived from supramolecular self-assembly and dual cross-linking strategies, and is expected to provide an idea for the realization and application of novel supramolecular aerogel materials.