Classical microcontact printing involves transfer of molecules adsorbed on the outer surfaces of solid stamps to substrates to be patterned. Spongy mesoporous silica stamps are prepared that can be soaked with ink and that are topographically patterned with arrays of submicron contact elements. Multiple successive stamping steps can be carried out under ambient conditions without ink refilling. Lattices of fullerene nanoparticles with diameters in the 100 nm range are obtained by stamping C 60 /toluene solutions on perfluorinated glass slides partially wetted by toluene. Stamping an ethanolic 1-dodecanethiol solution onto gold-coated glass slides yields arrays of submicron dots of adsorbed 1-dodecantethiol molecules, even though macroscopic ethanol drops spread on gold. This outcome may be related to the pressure drop across the concave ink menisci at the mesopore openings on the stamp surface counteracting the van der Waals forces between ink and gold surface and/ or to reduced wettability of the 1-dodecanethiol dots themselves by ethanol. The chemical surface heterogeneity of gold-coated glass slides functionalized with submicron 1-dodecanethiol dots is evidenced by dewetting of molten polystyrene films eventually yielding ordered arrays of polystyrene nanoparticles.

Zur Trennung chiraler Anästhetika werden für die Selektoren maßgeschneiderte kugelförmige Trägermaterialien benötigt. Dabei zeigen poröse Gläser besondere Eignung, da deren Textureigenschaften gezielt einstellbar sind. Durch die Nutzung einer speziellen Wirbelschichtapparatur sowie das Verfahren der ionotropen Gelierung konnten poröse Glaskugeln mit Durchmessern von 40 – 400 µm bzw. 2 – 4 mm synthetisiert werden. Zur Erzeugung von Core‐Shell‐Kugeln wurden erstmals die Prozesse des Ionenaustausches und der Phasenseparation in Alkaliborosilikatgläsern kombiniert, wodurch eine kontrollierbare mesoporöse Schicht an der Oberfläche unporöser Alkaliborosilikatglaskugeln erhalten wurde.

Herein, it is reported how pseudomorphic transformation of divinylbenzene (DVB)‐bridged organosilica@controlled pore glasses (CPG) offers the possibility to generate hierarchically porous organosilica/silica hybrid materials. CPG is utilized to provide granular shape/size and macroporosity and the macropores of the CPG is impregnated with organosilica phase, forming hybrid system. By subsequent pseudomorphic transformation, an ordered mesopore phase is generated while maintaining the granular shape and macroporosity of the CPG. Surface areas and mesopore sizes in the hierarchical structure are tunable by the choice of the surfactant and transformation time. Two‐dimensional magic angle spinning (MAS) NMR spectroscopy demonstrated that micellar‐templating affects both organosilica and silica phases and pseudomorphic transformation induces phase transition. A double‐layer structure of separate organosilica and silica layers is established for the impregnated material, while a single monophase consisting of randomly distributed T and Q silicon species at the molecular level is identified for the pseudomorphic transformed materials.

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