3D printing of high-strength chitosan hydrogel scaffolds without any organic solvents

2020 ◽  
Vol 8 (18) ◽  
pp. 5020-5028 ◽  
Author(s):  
Luyu Zhou ◽  
Hamed Ramezani ◽  
Miao Sun ◽  
Mingjun Xie ◽  
Jing Nie ◽  
...  
Keyword(s):  
3D Printing ◽  
Organic Solvents ◽  
High Strength ◽  
Chitosan Hydrogel ◽  
Hydrogel Scaffolds ◽  
Printing Method

Here, a novel direct ink printing method was developed to print high-strength chitosan hydrogel scaffolds without any organic solvents.

Direct 3D Printing of High Strength Biohybrid Gradient Hydrogel Scaffolds for Efficient Repair of Osteochondral Defect

2018 ◽  
Vol 28 (13) ◽  
pp. 1706644 ◽  
Author(s):  
Fei Gao ◽  
Ziyang Xu ◽  
Qingfei Liang ◽  
Bo Liu ◽  
Haofei Li ◽  
...  
Keyword(s):  
3D Printing ◽  
Osteochondral Defect ◽  
High Strength ◽  
Hydrogel Scaffolds

scholarly journals Solvent-cast 3D printing of Chitosan hydrogel scaffolds for guided cell growth

2016 ◽  
Vol 4 ◽  
Author(s):  
Wu Qinghua ◽  
Maire Marion ◽  
Lerouge Sophie ◽  
Therriault Daniel ◽  
Heuzey Marie-Claude
Keyword(s):  
Cell Growth ◽  
3D Printing ◽  
Chitosan Hydrogel ◽  
Hydrogel Scaffolds ◽  
Solvent Cast

The design of pores in PCL/HA-associated PLA scaffold with 3D printing method

2020 ◽  
Author(s):  
Dyah Hikmawati ◽  
Tiandini Dwi Sundari ◽  
Aminatun ◽  
Inten Firdhausi Wardhani
Keyword(s):  
3D Printing ◽  
Printing Method

scholarly journals Correction to: 3D printing method for next‑day acetabular fracture surgery using a surface filtering pipeline: feasibility and 1‑year clinical results

2021 ◽  
Author(s):  
Simon Weidert ◽  
Sebastian Andress ◽  
Christoph Linhart ◽  
Eduardo M. Suero ◽  
Axel Greiner ◽  
...  
Keyword(s):  
3D Printing ◽  
Acetabular Fracture ◽  
Clinical Results ◽  
Fracture Surgery ◽  
Printing Method

A correction to this paper has been published: https://doi.org/10.1007/s11548-021-02348-7

scholarly journals Radiation-initiated high strength chitosan/lithium sulfonate double network hydrogel/aerogel with porosity and stability for efficient CO2 capture

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20486-20497
Author(s):  
Zhiyan Liu ◽  
Rui Ma ◽  
Wenjie Du ◽  
Gang Yang ◽  
Tao Chen
Keyword(s):  
Aqueous Solution ◽  
High Strength ◽  
Beam Radiation ◽  
Chitosan Hydrogel ◽  
Double Network ◽  
Electron Beam Radiation ◽  
Freeze Dried ◽  
Urea Aqueous Solution ◽  
Capture Capacity

Chitosan hydrogel is regenerated from alkali/urea aqueous solution and the lithium sulfonate second network is introduced by electron beam radiation-initiated in situ free radical polymerization. The freeze-dried aerogel has CO2 capture capacity.

scholarly journals 14-3-3ε protein-loaded 3D hydrogels favor osteogenesis

2020 ◽  
Vol 31 (11) ◽  
Author(s):  
Ana A. Aldana ◽  
Marina Uhart ◽  
Gustavo A. Abraham ◽  
Diego M. Bustos ◽  
Aldo R. Boccaccini
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
3D Printing ◽  
Osteogenic Differentiation ◽  
Alginate Hydrogel ◽  
Hydrogel Scaffolds ◽  
Future Developments ◽  
Positive Effect ◽  
Cell Adhesion And Proliferation

Abstract3D printing has emerged as vanguard technique of biofabrication to assemble cells, biomaterials and biomolecules in a spatially controlled manner to reproduce native tissues. In this work, gelatin methacrylate (GelMA)/alginate hydrogel scaffolds were obtained by 3D printing and 14-3-3ε protein was encapsulated in the hydrogel to induce osteogenic differentiation of human adipose-derived mesenchymal stem cells (hASC). GelMA/alginate-based grid-like structures were printed and remained stable upon photo-crosslinking. The viscosity of alginate allowed to control the pore size and strand width. A higher viscosity of hydrogel ink enhanced the printing accuracy. Protein-loaded GelMA/alginate-based hydrogel showed a clear induction of the osteogenic differentiation of hASC cells. The results are relevant for future developments of GelMA/alginate for bone tissue engineering given the positive effect of 14-3-3ε protein on both cell adhesion and proliferation.

3D printing method of multi piezo head using a photopolymer resin

2007 ◽  
Author(s):  
Jung-Su Kim ◽  
Dong-Soo Kim ◽  
Min-Cheol Lee
Keyword(s):  
3D Printing ◽  
Printing Method

Study of 3D printing method for GRIN micro-optics devices

2016 ◽  
Author(s):  
P. J. Wang ◽  
J. A. Yeh ◽  
W. Y. Hsu ◽  
Y. C. Cheng ◽  
W. Lee ◽  
...  
Keyword(s):  
3D Printing ◽  
Micro Optics ◽  
Printing Method

scholarly journals Using a Cable-Driven Parallel Robot with Applications in 3D Concrete Printing

2021 ◽  
Vol 11 (2) ◽  
pp. 563
Author(s):  
Tuong Phuoc Tho ◽  
Nguyen Truong Thinh
Keyword(s):  
3D Printing ◽  
Large Scale ◽  
Trust Region ◽  
Parallel Robot ◽  
Inverse Kinematic ◽  
Programming Algorithm ◽  
Construction Time ◽  
Inverse Kinematic Problem ◽  
Robot Configuration ◽  
Printing Method

In construction, a large-scale 3D printing method for construction is used to build houses quickly, based on Computerized Aid Design. Currently, the construction industry is beginning to apply quite a lot of 3D printing technologies to create buildings that require a quick construction time and complex structures that classical methods cannot implement. In this paper, a Cable-Driven Parallel Robot (CDPR) is described for the 3D printing of concrete for building a house. The CDPR structures are designed to be suitable for 3D printing in a large workspace. A linear programming algorithm was used to quickly calculate the inverse kinematic problem with the force equilibrium condition for the moving platform; this method is suitable for the flexible configuration of a CDPR corresponding to the various spaces. Cable sagging was also analyzed by the Trust-Region-Dogleg algorithm to increase the accuracy of the inverse kinematic problem for controlling the robot to perform basic trajectory interpolation movements. The paper also covers the design and analysis of a concrete extruder for the 3D printing method. The analytical results are experimented with based on a prototype of the CDPR to evaluate the work ability and suitability of this design. The results show that this design is suitable for 3D printing in construction, with high precision and a stable trajectory printing. The robot configuration can be easily adjusted and calculated to suit the construction space, while maintaining rigidity as well as an adequate operating space. The actuators are compact, easy to disassemble and move, and capable of accommodating a wide variety of dimensions.

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