Formation of redox-active self-assembled polyelectrolyte–surfactant complexes integrating glucose oxidase on electrodes: Influence of the self-assembly solvent on the signal generation

Mass and charge transport in highly mesostructured polyelectrolyte/electroactive-surfactant multilayer films

“…More recently, it has been demonstrated that the LbL assembly of polyelectrolytes and amphiphilic molecules, as mesogenic agents, is a straightforward alternative to promote meso-organization into these thin films [10,12,32,33]. Although the use of surfactants as structuredirecting agents has been successfully employed for the construction of inorganic mesoporous films [34][35][36] or mesostructured surfactant-polymer ''complex-salts" [37][38][39][40][41][42][43][44][45][46][47][48][49][50], its application in the buildup of well-defined mesostructures with meso-organized functionality using the LbL technique has been scarcely studied [10].…”

Solvent Effects on the Structure–Property Relationship of Redox-Active Self-Assembled Nanoparticle–Polyelectrolyte–Surfactant Composite Thin Films: Implications for the Generation of Bioelectrocatalytic Signals in Enzyme-Containing Assemblies

“…These enzymecontaining mesoorganized supramolecular assemblies exhibited interesting changes in their mesostructure when they were exposed to a humid environment and displayed a more effective response at low glucose concentrations. 45 Regarding this issue, it is important to consider that the formation of self-assembled supramolecular structures from solution onto solid supports is highly dependent on a number of weak forces that can lead to particular mesoscale patterns under a range of chemical and environmental conditions, including the type of solvent. 46−48 Despite intensive research exploring the correlation between the supramolecular structure, film morphology, and functional properties, to date, it is still not known how the processing solvent impacts the mesostructural and charge-transport characteristics of redoxactive polyelectrolyte−surfactant composite films.…”

“…In addition, we have shown the capabilities of these films to adsorb an enzyme and work as amperometric sensors. − This simple strategy allowed us to decrease the preparation time, compared to organized systems constructed by layer-by-layer processes, − and avoid the use of cross-linking reagents that can affect the enzyme activity. , More recently, this approach enabled us to create mesostructured polyelectrolyte–surfactant nanoarchitectures efficiently by integrating glucose oxidase onto gold electrodes using aqueous solvents for the casting process. These enzyme-containing mesoorganized supramolecular assemblies exhibited interesting changes in their mesostructure when they were exposed to a humid environment and displayed a more effective response at low glucose concentrations …”