Externally Tunable Dynamic Confinement Effect in Organosilica Sol-Gels

摘要

Molecules tend to behave differently when placed in confined spaces.Confinement of molecules in nanoscale enclosures results in drastic alterations in physical and chemical properties.Such an effect is exploited by nature to utilize the ordered nanostructure afforded by cellular organization and emulated in synthetic porous systems to alter structure and reactivity of molecules.However,these systems are characterized by spatially fixed cavities such that encapsulated molecules experience an environment that is constant,and once encapsulated in the porous structure the environment remains largely unchanged and spatial modulation is not feasible.