Extended hierarchical solvent perturbations from curved surfaces of mesoporous silica particles in a deep eutectic solvent.

ABSTRACT: HYPOTHESIS:Many applications of deep eutectic solvents (DES) rely on exploitation of their unique yet complex liquid structures. Due to the ionic nature of the DES components, their diffuse structures are perturbed in the presence of a charged surface. We hypothesize that it is possible to perturb the bulk DES structure far (>100 nm) from a curved, charged surface with mesoscopic dimensions. EXPERIMENTS:We performed in situ, synchrotron-based ultra-small angle X-ray scattering (USAXS) experiments to study the solvent distribution near the surface of charged mesoporous silica particles (MPS) (≈0.5 µm in diameter) suspended in both water and a common type of DES (1:2 choline Cl-:ethylene glycol). FINDINGS:A careful USAXS analysis reveals that the perturbation of electron density distribution

SUBMITTER: Hammons JA 

PROVIDER: S-EPMC5991083 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature