Home > News > Precise and low-cost submicron fabrication technique for manufacturing human spare parts
May 11th, 2007
Precise and low-cost submicron fabrication technique for manufacturing human spare parts
Abstract:
VTT Technical Research Centre of Finland, Tampere University of Technology and Nanofoot Finland Oy have developed a direct-write three-dimensional forming method for biomaterials. The methodology enables the fabrication of nano and micrometer scale structures that can be used as parts of tissue engineering scaffolds. The project is being funded by the BioneXt Tampere Research Programme.
The new process is based on the use of visible light, ultra short pulse laser. When focused inside photopolymerizable material, the radiation causes a reaction in which two photons are absorbed simultaneously, thus leading to the polymerization of the material. One of the advantages of this process, known as the two-photon polymerization process, is that the fabrication occurs below the surface of liquid material and the polymerization is confined to the point of focus whose diameter can be much less than 1 micrometer. The conventional ultraviolet light-induced polymerization causes hardening of the material along the entire path of the UV beam, making it impossible to form very small three-dimensional features. The two-photon polymerization process requires no utilization of special photolithographic masks since the structure is formed inside the liquid volume.
Source:
vtt.fi
Related News Press |
Nanomedicine
New micromaterial releases nanoparticles that selectively destroy cancer cells April 5th, 2024
Good as gold - improving infectious disease testing with gold nanoparticles April 5th, 2024
Researchers develop artificial building blocks of life March 8th, 2024
Discoveries
Chemical reactions can scramble quantum information as well as black holes April 5th, 2024
New micromaterial releases nanoparticles that selectively destroy cancer cells April 5th, 2024
Utilizing palladium for addressing contact issues of buried oxide thin film transistors April 5th, 2024
Announcements
NRL charters Navy’s quantum inertial navigation path to reduce drift April 5th, 2024
Discovery points path to flash-like memory for storing qubits: Rice find could hasten development of nonvolatile quantum memory April 5th, 2024
Human Interest/Art
Drawing data in nanometer scale September 30th, 2022
Scientists prepare for the world’s smallest race: Nanocar Race II March 18th, 2022
Graphene nanotubes revolutionize touch screen use for prosthetic hands August 3rd, 2021
JEOL Announces 2020 Microscopy Image Grand Prize Winners January 7th, 2021
The latest news from around the world, FREE | ||
Premium Products | ||
Only the news you want to read!
Learn More |
||
Full-service, expert consulting
Learn More |
||