Permeability-controllable membranes. 9. Electrochemical redox-sensitive gate membranes of polypeptide films having ferrocene groups in side chains

A novel low-molecular-mass gelator with a redox active ferrocenyl group: Tuning gel formation by oxidation

“…Owing to their hydrophobic character, they are mainly encountered in lipid phases or incorporated into membranes and films. For instance, a ferrocenyl group linked to a hydrophobic alkyl chain, to the head-group of an amphiphile [30], or to polypeptides [31] has been incorporated into artificial membranes, with the aim that the ferrocenyl redox state controls the permeability of the membranes. This systems aim at mimicking certain biological processes occurring at synapses, where potential variation induces the release of transmitter metabolites.…”

Oxidation‐Responsive Polymers: Which Groups to Use, How to Make Them, What to Expect From Them (Biomedical Applications)

“… Use of metallocene‐containing initiators/chain transfer agents; ferrocenyl RAFT agents63 or cobaltocenyl ATRP initiators64 have been used to introduce the metallocene group as a terminal or central group of styrene or (meth)acrylic polymers. Functionalization of preformed polymers; a number of reactions have been used to introduce metallocenes, in most cases, as side chain groups or as terminal groups in dendritic/star structures. We will here mention only a few cases, starting from early examples of transesterification on poly( γ ‐methyl‐ L ‐glutamate),65 to the nowadays more popular hydrosilylation66 and “click” (Huisgen cycloaddition)67 reactions. …”

“…Functionalization of preformed polymers; a number of reactions have been used to introduce metallocenes, in most cases, as side chain groups or as terminal groups in dendritic/star structures. We will here mention only a few cases, starting from early examples of transesterification on poly( γ ‐methyl‐ L ‐glutamate),65 to the nowadays more popular hydrosilylation66 and “click” (Huisgen cycloaddition)67 reactions.…”