Porous Network Microstructures: Femtosecond Laser Direct Writing of Porous Network Microstructures for Fabricating Super-Slippery Surfaces with Excellent Liquid Repellence and Anti-Cell Proliferation (Adv. Mater. Interfaces 7/2018)

Direct-writing of PbS nanoparticles inside transparent porous silica monoliths using pulsed femtosecond laser irradiation

Pulsed femtosecond laser irradiation at low repetition rate, without any annealing, has been used to localize the growth of PbS nanoparticles, for the first time, inside a transparent porous silica matrix prepared by a sol-gel route. Before the irradiation, the porous silica host has been soaked within a solution containing PbS precursors. The effect of the incident laser power on the particle ...

Two-Photon Direct Laser Writing for Proteinaceous Microstructures with Additional Sensitizer

We report our findings of proteinaceous microstructures polymerized by two-photon direct laser writing (DLW) using an additional sensitizer for rapid fabrication. Conventionally, a solution of protein and one type of photosensitizer or photo-initiator is exposed to laser light for protein cross-linking. We introduce an additional photosensitizer of different absorption properties and potential ...

Spectral analysis and connectivity of porous microstructures in bone.

Cancellous bone is a porous composite of calcified tissue interspersed with soft marrow. Sea ice is also a porous composite, consisting of pure ice with brine, air, and salt inclusions. Interestingly, the microstructures of bone and sea ice exhibit notable similarities. In recent years, we have developed mathematical and experimental techniques for imaging and characterizing the brine microstru...

Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering

We report on the fabrication of desired magneto-photonic devices by a low one-photon absorption (LOPA) direct laser writing (DLW) technique on a photocurable nanocomposite consisting of magnetite ( Fe 3 O 4 ) nanoparticles and a commercial SU-8 photoresist. The magnetic nanocomposite was synthesized by mixing Fe 3 O 4 nanoparticles with different kinds of SU-8 photoresists. We demonstrated that...

Holographic Fabrication of Periodic Microstructures by Interfered Femtosecond Laser Pulses