A G-rich nucleic acid-tethered acrylamide/N-isopropylacrylamide (NIPAM) copolymer is prepared. The nucleic acid-modified pNIPAM chains assemble, in the presence of K ions, into a stimuli-responsive G-quadruplex-crosslinked pNIPAM hydrogel undergoing cyclic and reversible solution/hydrogel/solid transitions. Addition of kryptofix [2.2.2], CP, to the K-stabilized G-quadruplex-crosslinked hydrogel...

The aim of this study is to highlight novel CuS-carrageenan nanocomposites grown from the interface between sulfide solutions (liquid phases) and Cu-?-carrageenan gels. Several parameters including pH, copper carrageenan concentration hydrogel that influence growth nanocomposite have been examined. most effective parameter initial pH liquid phase, hence, three growing samples at 7, 10 13 were s...