Process flow for high-res 3D printing of mini soft robotic actuators
Researchers have proposed process flow guides for 3D printing of miniature soft pneumatic actuators. Integrating the prints into a robotic system offers potential applications in jet-engine maintenance and minimally invasive surgery.
Rapid, low-cost method to 3D print microfluidic devices
Microfluidics is the manipulation and study of sub-microscopic liters of fluids. Technologies that utilise microfluidics are found in many multidisciplinary fields ranging from engineering to biology. Experiments can be performed on a device roughly of the size of a dollar coin, reducing the amount of reagents used, wastes produced, and the overall costs.
A unique method of fabricating 3D porous structures
Materials with controlled porosity have found diverse applications in separation, catalysis, energy storage, sensors and actuators, tissue engineering and drug delivery. Multiple methods have been developed to fabricate well-defined porous materials with the pore sizes ranging from nanometers to millimeters.
Multimaterial 3D printing
Traditional robotic systems with rigid parts often pose a threat to human operators. Recently flourishing soft actuators and robots, in contrast, offer excellent adaptivity to surroundings and safe, coexisting interaction with humans. However, their competence in load-bearing tasks is undermined by the inherent low-stiffness nature of constituent materials like silicone rubbers.
Large-scale, sustainable 3D printing with cellulose
Cellulose is one of the most abundant and broadly distributed organic compound and industrial by-product on Earth. Yet, despite decades of extensive research, the bottom-up use of cellulose to fabricate 3D objects is still plagued with problems that restrict its practical applications: derivatives with vast polluting effects, used in combination with plastics, lack of scalability and high production cost.
Stretchable hydrogels for high resolution multimaterial 3D printing
Hydrogels, hydrophilic networks of polymeric chains capable of retaining a large amount of water, have been widely used in a variety of applications. Recent advances in highly stretchable hydrogels have extended their applications into the fields of soft robotics, transparent touch panels and other applications requiring large deformation.
New 4-D printer could reshape the world we live in
Scientists report that they have developed a powerful printer that could streamline the creation of self-assembling structures that can change shape after being exposed to heat and other stimuli. They say this unique technology could accelerate the use of 4-D printing in aerospace, medicine and other industries.
New 3-D printing method creates shape-shifting objects
A team of researchers has developed a new 3-D printing method to create objects that can permanently transform into a range of different shapes in response to heat.
Most stretchable elastomer for 3D printing
Due to its excellent material properties of elasticity, resilience, and electrical and thermal insulation, elastomers have been used in a myriad of applications.
New cyber security threat: hacking 3D printers
Cyber security experts, as part of an international research team, were able to sabotage a drone by hacking the computer controlling the 3D printer that made its parts.
3-D printed structures "remember" their shapes
Engineers are using light to print three-dimensional structures that "remember" their original shapes. Even after being stretched, twisted, and bent at extreme angles, the structures sprang back to their original forms within seconds of being heated to a certain temperature.