Out-of-equilibrium chemical logic systems: Light- and sound-controlled programmable spatiotemporal patterns and mechanical functions

Neuromorphic Engineering in Wetware: Discriminating Acoustic Frequencies through Their Effects on Chemical Waves

“…They depend on the topography of the thin layer of the solution, which is ruled by the Faraday patterns. Sound-induced Faraday patterns have been exploited as templates to assemble floating beads in programmable patterns, 33 for the programmable movement of floating cargos, 33 for aligning supramolecular nanofibers, 34 and for controlling redox-sensitive, pH-sensitive, 35 and cascade reactions 36 due to the nonuniform dissolution, diffusion, and transport of gaseous reactants through the air−water interface. It is well-known that the BZ reaction is affected by the air− water interface because it involves gaseous oxygen and bromine in its multistep mechanism.…”

Self-Regulatory Micro- and Macroscale Patterning of ATP-Mediated Nanobioconjugate

“…Additionally, our finding demonstrates that the diffusiophoretic effect dictates the taxis and zone of nanobioconjugate assembly formation, and this process can be actuated by introduction of the enzyme, ALP. In previous instances, many nonequilibrium and dynamic self-assembly and patterning of nanoparticles or active colloidal matter were exemplified using complementary charge interaction, light, or in combination with lithography and a self-assembly approach. − In fact, all of these have significant applicability in designing plasmonic or SERS-active substrates and dynamic nonlinear oscillatory and catalytic systems or materials. − Furthermore, this manuscript reports diffusiophoretic formation and accumulation of nanobioconjugate in microfluidic conditions, where the growth rate can be manipulated by enzyme–substrate action operating in a gradient. The previous report of “diffusiophoretic banding” was reported with polymer beads in gradient of NaCl, KCl, or LiCl, which exemplifies diffusiophoresis driven large scale mixing, explaining the possible reason behind enhanced migration of particles through coastal aquifers in the salt gradient and specific sedimentation zone relevant to oceanography and estuarine hydrodynamics .…”

Metallosupramolecular polymers: current status and future prospects

“…This may lead to the formation of transiently active smart materials and artificial life-like systems. 53 Such systems will be a valuable addition to the newly evolving field of systems chemistry. 119 We strongly believe that focussing on the above issues will provide a better understanding of the morphology in solution as well as over solid substrates, which may produce a variety of unique next generation functional materials, exhibiting emergent properties.…”

“…Nevertheless, audible sound has gained attention very recently in the area of out-of-equilibrium chemical systems. [52][53][54][55] In a previous work, Tsuda, Aida and co-workers observed that a zinc porphyrin-based dendrimer, which formed J-aggregates, could be utilized to visualize the macroscopic chirality of a vortex generated in a cuvette by mechanical stirring. It was observed that upon reversing the stirring direction, there was a quick change in the sign of the circular dichroism (CD) signal.…”

“…9). We believe that with the recent rise in interest in audible sonochemistry, [52][53][54][55] judiciously designed metallosupramolecular polymers will find applications in Faraday instability and spatiotemporal pattern formation and functions.…”