4 research outputs found
3D Two-Photon Microprinting of Nanoporous Architectures
A photoresist system for 3D twoâphoton microprinting is presented, which enables the printing of inherently nanoporous structures with mean pore sizes around 50â
nm by means of selfâorganization on the nanoscale. A phase separation between polymerizable and chemically inert photoresist components leads to the formation of 3D coâcontinuous structures. Subsequent washingâout of the unpolymerized phase reveals the porous polymer structures. To characterize the volume properties of the printed structures, scanning electron microscopy images are recorded from ultramicrotome sections. In addition, the lightâscattering properties of the 3Dâprinted material are analyzed. By adjusting the printing parameters, the porosity can be controlled during 3D printing. As an application example, a functioning miniaturized Ulbricht lightâcollection sphere is 3D printed and tested
3D TwoâPhoton Microprinting of Nanoporous Architectures
A photoresist system for 3D twoâphoton microprinting is presented, which enables the printing of inherently nanoporous structures with mean pore sizes around 50â
nm by means of selfâorganization on the nanoscale. A phase separation between polymerizable and chemically inert photoresist components leads to the formation of 3D coâcontinuous structures. Subsequent washingâout of the unpolymerized phase reveals the porous polymer structures. To characterize the volume properties of the printed structures, scanning electron microscopy images are recorded from ultramicrotome sections. In addition, the lightâscattering properties of the 3Dâprinted material are analyzed. By adjusting the printing parameters, the porosity can be controlled during 3D printing. As an application example, a functioning miniaturized Ulbricht lightâcollection sphere is 3D printed and tested