A soft on/off switch based on the electrochemically reversible H–J interconversion of a floating porphyrin membrane

Abstract

Soft molecular assemblies that respond reversibly to external stimuli are attractive materials as on/off switches, in optoelectronic, memory and sensor technologies. In this Edge Article, we present the reversible structural...

Electrosynthesis of Au nanocluster embedded conductive polymer films at soft interfaces using dithiafulvenyl-functionalized pyrene

“…Fig. 8B shows an example AFM image of a nanocomposite film electrogenerated at the micropipette interface after 25 CV scans and using Cell 2 with [KAuCl 4 ] = 5 mM and [1] 1 mM; whereby, the area labelled 'Well' corresponds to the section physically removed by the AFM tip. Fig.…”

“…The ITIES, i.e., the liquid|liquid or soft interface, has come under increasing interest as a platform for the growth/synthesis of 2D and 3D molecular 1,2 and nano-structures, [3][4][5][6][7] as well as for electrosynthesis of electrocatalytic materials and conductive polymers. 8,9 The Galvani potential difference, e.g., between water|oil (w|o), ϕ w − ϕ o = Δ w o ϕ, is localized across the interface and controlled with electrodes immersed in either phase positioned relatively far away; thus, this approach is often referred to as 'electrodeless' since electrodes are only indirectly involved.…”

“…This is advantageous since solid/ solution interfaces often carry the risk that morphological features from the solid substrate will be transcribed onto the synthesized material which can inhibit their ultimate functionality; moreover, the material is often covalently bound to the solid surface complicating its removal and application as a free-standing material. These materials, whether nanoparticle 3,[5][6][7]10 or molecular assemblies 1,2 as well as polymer films, 8,9 have potential use in biomedical, electrocatalytic, and separation science applications.…”

“…The ITIES, i.e. , the liquid|liquid or soft interface, has come under increasing interest as a platform for the growth/synthesis of 2D and 3D molecular 1,2 and nano-structures, 3–7 as well as for electrosynthesis of electrocatalytic materials and conductive polymers. 8,9 The Galvani potential difference, e.g.…”

Bioinspired porphyrin–peptide supramolecular assemblies and their applications

“…According to the different routes of aggregation, the researchers proposed different types of aggregation, of which the most famous are J-type and H-type aggregation. [44][45][46][47] The assembly of porphyrins and peptides can adopt J-aggregates (dislocation parallel aggregation) or H-aggregates (face-to-face parallel aggregation) by non-covalent bonds under certain conditions such as concentration, pH value, temperature or ionic strength.…”