[HTML][HTML] 4D printing of shape memory polylactic acid (PLA)

M Mehrpouya, H Vahabi, S Janbaz, A Darafsheh… - Polymer, 2021 - Elsevier
Additive manufacturing has attracted much attention in the last decade as a principal
growing sector of complex manufacturing. Precise layer-by-layer patterning of materials …

Advances in shape memory polymers: Remote actuation, multi-stimuli control, 4D printing and prospective applications

X Wang, Y He, Y Liu, J Leng - Materials Science and Engineering: R …, 2022 - Elsevier
Shape memory polymer (SMP) is an excellent smart material, which can sense and perform
active shape change as preprogrammed. So far, there are a wide variety of stimulus …

[HTML][HTML] Advances in biodegradable piezoelectrics for medical implants

T Liu, Y Wang, M Hong, J Venezuela, W Shi… - Nano Today, 2023 - Elsevier
Piezoelectric devices integrated into physiological systems can be used effectively for
biomedical applications such as sensing biological forces, self-powering biomedical …

Sustainable robots 4D printing

H Soleimanzadeh, B Rolfe, M Bodaghi… - Advanced …, 2023 - Wiley Online Library
Nature frequently serves as an inspiration for modern robotics innovations that emphasize
secure human–machine interaction. However, the advantages of increased automation and …

3D printing of shape memory polymers

G Ehrmann, A Ehrmann - Journal of Applied Polymer Science, 2021 - Wiley Online Library
Shape memory polymers (SMPs) are polymers which''remember''their original shape and
can return to it after deformation, if an external stimulus—often an increased temperature–is …

[HTML][HTML] 4D printing of electroactive shape-changing composite structures and their programmable behaviors

X Dong, F Zhang, L Wang, Y Liu, J Leng - Composites Part A: Applied …, 2022 - Elsevier
Abstract 4D printing is an advanced manufacturing technology that combines the
convenience of additive manufacturing and uses stimuli-responsive materials, which has …

[HTML][HTML] Processes and materials used for direct writing technologies: A review

SB Balani, SH Ghaffar, M Chougan, E Pei… - Results in Engineering, 2021 - Elsevier
Direct Writing (DW), also known as Robocasting, is an extrusion-based layer-by-layer
manufacturing technique suitable for manufacturing complex geometries. Different types of …

A review of 4D printing: Materials, structures, and designs towards the printing of biomedical wearable devices

K McLellan, YC Sun, HE Naguib - Bioprinting, 2022 - Elsevier
Abstract 4D printing, the integration of time-dependent shape morphing ability and additive
manufacturing technologies, has opened up new possibilities for creating dynamic and …

Shape memory alloys and polymers for MEMS/NEMS applications: Review on recent findings and challenges in design, preparation, and characterization

I Stachiv, E Alarcon, M Lamac - Metals, 2021 - mdpi.com
Rapid progress in material science and nanotechnology has led to the development of the
shape memory alloys (SMA) and the shape memory polymers (SMP) based functional …

Computationally guided DIW technology to enable robust printing of inks with evolving rheological properties

ML Lopez‐Donaire… - Advanced Materials …, 2023 - Wiley Online Library
Soft multifunctional materials allow for mechanical sensing or actuation as a response to
multiple physical stimuli, while providing material stiffness that mimic soft biological tissues …