Results 11 to 20 of about 494,947 (250)

Two-Way 4D Printing: A Review on the Reversibility of 3D-Printed Shape Memory Materials

open access: yesEngineering, 2017
The rapid development of additive manufacturing and advances in shape memory materials have fueled the progress of four-dimensional (4D) printing. With the right external stimulus, the need for human interaction, sensors, and batteries will be eliminated,
Amelia Yilin Lee, Jia An, Chee Kai Chua
doaj   +2 more sources

Preliminary Investigation of the Reversible 4D Printing of a Dual-Layer Component

open access: yesEngineering, 2019
The rapid development of additive manufacturing and advances in shape memory materials have fueled the progress of four-dimensional (4D) printing. With increasing improvements in design, reversible 4D printing—or two-way 4D printing—has been proven to be
Amelia Yilin Lee   +3 more
doaj   +2 more sources

Contactless reversible 4D-printing for 3D-to-3D shape morphing

open access: yesVirtual and Physical Prototyping, 2020
4D printing provides a means to create dynamic structures for self-actuating devices fabricated by additive manufacturing techniques. Most existing 4D printing processes are only capable of one-way shape morphing using a single mechanism for stimulation.
Amelia Yilin Lee   +4 more
doaj   +2 more sources

3D and 4D Printing of Multistable Structures [PDF]

open access: yesApplied Sciences, 2020
Three-dimensional (3D) printing is a new paradigm in customized manufacturing and allows the fabrication of complex structures that are difficult to realize with other conventional methods. Four-dimensional (4D) printing adds active, responsive functions
Hoon Yeub Jeong   +5 more
doaj   +2 more sources

Developments in 4D-printing: a review on current smart materials, technologies, and applications

open access: yesInternational Journal of Smart and Nano Materials, 2019
Recent advances in additive manufacturing (AM), commonly known as three-dimensional (3D)-printing, have allowed researchers to create complex shapes previously impossible using traditional fabrication methods.
Zhizhou Zhang   +2 more
doaj   +2 more sources

Recent advances in 4D printing of hydrogels

open access: yesReviews on Advanced Materials Science
4D printing, the fabrication of dynamic 3D objects, has emerged as a frontier in additive manufacturing, benefiting from rapid advancements in 3D printing technologies and the development of new stimuli-responsive materials.
Li Tongqing   +4 more
doaj   +2 more sources

Traction of 3D and 4D Printing in the Healthcare Industry : From Drug Delivery and Analysis to Regenerative Medicine [PDF]

open access: yes, 2022
Three-dimensional (3D) printing and 3D bioprinting are promising technologies for a broad range of healthcare applications from frontier regenerative medicine and tissue engineering therapies to pharmaceutical advancements yet must overcome the ...
Tahereh Masalehdan   +18 more
core   +2 more sources

4D Printing of Hydrogels: Innovation in Material Design and Emerging Smart Systems for Drug Delivery [PDF]

open access: yes, 2022
Advancements in the material design of smart hydrogels have transformed the way therapeutic agents are encapsulated and released in biological environments. On the other hand, the expeditious development of 3D printing technologies has revolutionized the
Mettu, Srinivas   +9 more
core   +1 more source

Significant roles of 4D printing using smart materials in the field of manufacturing

open access: yesAdvanced Industrial and Engineering Polymer Research, 2021
For many years, 3D Printing technologies have created significant advancements in the fields of engineering and healthcare. 4D printing is also introduced, which is the advanced version of 3D printing.
Abid Haleem   +3 more
doaj   +1 more source

4D Printing Dual Stimuli-Responsive Bilayer Structure Toward Multiple Shape-Shifting

open access: yesFrontiers in Materials, 2021
4D printing has been attracting widespread attention because its shape and performance can change under stimuli. The existing 4D printing technology is mostly limited to responsive to single stimulus, which means that the printing structure can only ...
Luquan Ren   +11 more
doaj   +1 more source

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