Sacrificial 3D printing of shrinkable silicone elastomers for enhanced feature resolution in flexible tissue scaffolds

We report the first enzyme cleavable inorganic–organic hybrid “inks” that can be 3D printed as scaffolds for bone regeneration and investigate the effect of star polymer architecture on their properties.

Download Full-text

A Review on Development of Soft Gripper Using 4D Printing

INTERNATIONAL JOURNAL OF ADVANCED PRODUCTION AND INDUSTRIAL ENGINEERING ◽

10.35121/ijapie202007348 ◽

2020 ◽

Vol 5 (3) ◽

pp. 49-55

Author(s):

Ashutosh Singh ◽

◽

Ravi Butola ◽

Jitendra Bhaskar ◽

Keyword(s):

3D Printing ◽

Shape Memory ◽

Advanced Materials ◽

Soft Robotics ◽

4D Printing ◽

Silicone Elastomers ◽

System Architectures ◽

Shape Memory Materials ◽

End Effectors ◽

Future Work

Improvements in soft robotics, materials, and flexible gripper technology made it possible for the soft grippers to advance rapidly. A brief analysis of soft robotic grippers featuring various material collections, physical rules, and system architectures is provided here. Soft gripping is divided into three technologies, enabling gripping with: a) actuation, b) material used, and c) Use of 3D printing in fabricating grippers. An informative analysis is provided of every form. Similar to stiff grippers, flexible and elastic end-effectors may also grab or control a broader variety of objects. The inherent versatility of the materials is increasingly being used to study advanced materials and soft structures, particularly silicone elastomers, shape-memory materials, active polymers, and gels, in the development of compact, simple, and more versatile grippers. For future work, enhanced structures, techniques, and senses play a prominent part.

Download Full-text

Inkjet 3D printing of UV and thermal cure silicone elastomers for dielectric elastomer actuators

Smart Materials and Structures ◽

10.1088/1361-665x/aa9695 ◽

2017 ◽

Vol 26 (12) ◽

pp. 125022 ◽

Cited By ~ 44

Author(s):

David McCoul ◽

Samuel Rosset ◽

Samuel Schlatter ◽

Herbert Shea

Keyword(s):

3D Printing ◽

Dielectric Elastomer ◽

Thermal Cure ◽

Silicone Elastomers ◽

Dielectric Elastomer Actuators

Download Full-text

Solvent-Free Digital Light 3D Printing using Biodegradable Polymeric Photoinitiators

10.26434/chemrxiv.13296362 ◽

2020 ◽

Author(s):

matthias sandmeier ◽

nevena paunovic ◽

Riccardo Conti ◽

Hofmann Leopold ◽

Jieping Wang ◽

...

Keyword(s):

3D Printing ◽

Polymeric Materials ◽

Systematic Investigation ◽

Tissue Scaffolds ◽

Solvent Free ◽

Medical Implants ◽

Structure Property ◽

Digital Light Processing ◽

Structure Property Relationship ◽

Relationship Of

Vat photopolymerization 3D printing provides newopportunities for the fabrication of tissue scaffolds and medicaldevices. However, it usually requires the use of organic solvents ordiluents to dissolve the solid photoinitators, making this processenvironmentally unfriendly, and not optimal for biomedicalapplications. Here, we report biodegradable liquid polymericphotoinitiators for solvent-free 3D printing of biodegradable polymericmaterials by digital light processing. These photoinitiators enablesystematic investigation of structure-property relationship of 3Dprinting polymeric materials without the interference from the reactivediluents and offer new perspectives for the solvent-free 3D additivemanufacturing of bioresorbable medical implants as well as otherfunctional devices.

Download Full-text

Solvent Mediating the in Situ Self-Assembly of Polysaccharides for 3D Printing Biomimetic Tissue Scaffolds

ACS Nano ◽

10.1021/acsnano.1c05956 ◽

2021 ◽

Author(s):

Rongrong Zhang ◽

Linglong Deng ◽

Jinhua Guo ◽

Hongye Yang ◽

Lina Zhang ◽

...

Keyword(s):

3D Printing ◽

Self Assembly ◽

Tissue Scaffolds

Download Full-text

Superstretchable and Processable Silicone Elastomers by Digital Light Processing 3D Printing

ACS Applied Materials & Interfaces ◽

10.1021/acsami.9b03156 ◽

2019 ◽

Vol 11 (15) ◽

pp. 14391-14398 ◽

Cited By ~ 23

Author(s):

Tingting Zhao ◽

Ran Yu ◽

Shan Li ◽

Xinpan Li ◽

Ying Zhang ◽

...

Keyword(s):

3D Printing ◽

Silicone Elastomers ◽

Digital Light Processing

Download Full-text

Additive Manufacturing for Guided Bone Regeneration: A Perspective for Alveolar Ridge Augmentation

International Journal of Molecular Sciences ◽

10.3390/ijms19113308 ◽

2018 ◽

Vol 19 (11) ◽

pp. 3308 ◽

Cited By ~ 18

Author(s):

Patrick Rider ◽

Željka Kačarević ◽

Said Alkildani ◽

Sujith Retnasingh ◽

Reinhard Schnettler ◽

...

Keyword(s):

3D Printing ◽

Computer Aided Design ◽

Selective Laser Sintering ◽

Three Dimensional ◽

Tissue Scaffolds ◽

Patient Specific ◽

Alveolar Ridge ◽

Ridge Augmentation ◽

Permanent Implants ◽

Extrusion Printing

Three-dimensional (3D) printing has become an important tool in the field of tissue engineering and its further development will lead to completely new clinical possibilities. The ability to create tissue scaffolds with controllable characteristics, such as internal architecture, porosity, and interconnectivity make it highly desirable in comparison to conventional techniques, which lack a defined structure and repeatability between scaffolds. Furthermore, 3D printing allows for the production of scaffolds with patient-specific dimensions using computer-aided design. The availability of commercially available 3D printed permanent implants is on the rise; however, there are yet to be any commercially available biodegradable/bioresorbable devices. This review will compare the main 3D printing techniques of: stereolithography; selective laser sintering; powder bed inkjet printing and extrusion printing; for the fabrication of biodegradable/bioresorbable bone tissue scaffolds; and, discuss their potential for dental applications, specifically augmentation of the alveolar ridge.

Download Full-text