- Interview with Dr Adrian Bowyer, the creator of the RepRap 3D Printer
- The Mathematics of 3D Printing
- 11 Reasons why Schools need 3D Printers
- 3D Printing a 3D Printer
- How to change the battery on an IP54 digital caliper
- Off Topic – not 3D Printing Related
Nanoengineers can 3D print microstructures in mere seconds
Nanoengineers at the University of California, San Diego have developed a novel technology that can fabricate, in mere seconds, microscale three dimensional (3D) structures out of soft, biocompatible hydrogels.
Near term, the technology could lead to better systems for growing and studying cells, including stem cells, in the laboratory. Long-term, the goal is to be able to print biological tissues for regenerative medicine. For example, in the future, doctors may repair the damage caused by heart attack by replacing it with tissue that rolled off of a printer.
We’ll call it Dynamic Optical Projection Stereolithography
Reported in the journal Advanced Materials, the biofabrication technology, called dynamic optical projection stereolithography (DOPsL), was developed in the laboratory of NanoEngineering Professor Shaochen Chen. Current fabrication techniques, such as photolithography and micro-contact printing, are limited to generating simple geometries or 2D patterns. Stereolithography is best known for its ability to print large objects such as tools and car parts.
Fine Grain details can be printed
The difference, says Chen, is in the micro- and nanoscale resolution required to print tissues that mimic nature’s fine-grained details, including blood vessels, which are essential for distributing nutrients and oxygen throughout the body. Without the ability to print vasculature, an engineered liver or kidney, for example, is useless in regenerative medicine. With DOPsL, Chen’s team was able to achieve more complex geometries common in nature such as flowers, spirals and hemispheres. Other current 3D fabrication techniques, such as two-photon photopolymerization, can take hours to fabricate a 3D part.
How it works – it’s like Photopolymer 3D Printers that use a laser
The biofabrication technique uses a computer projection system and precisely controlled micromirrors to shine light on a selected area of a solution containing photo-sensitive biopolymers and cells. This photo-induced solidification process forms one layer of solid structure at a time, but in a continuous fashion. The technology is part of a new biofabrication technology that Chen is developing under a four-year, $1.5 million grant from the National Institutes of Health (R01EB012597).
- Company creates software that they say stops the 3D printing of Guns
- U.S. Copyright Czar Applauds Six-Strikes, Warns Over 3D Printing Piracy
- Is the 3D Printed gun any good?
- 3D Printed gun taken down by US Authorities
- 3D Printed Guns
- Interview with the 3d Printing fractal artist unellenu
- New tool gives structural strength to 3D printed works
- Adelaide man launches unique 3D Printed Jewellery Kickstarter
Follow on Twitter
3D Printing sitesRepRap 3D Printer Component Suppliers
RepRapPro - the site of the RepRap creater
Full Service Printing Bureaus
3D Print (UK)
3D Printing Directories
Explaining the Future
About 3D Printers