Computer-aided multiple-head 3D printing system for printing of heterogeneous organ/tissue constructs
Owner/Developer: Scientific Reports
Recently, much attention has focused on replacement or/and enhancement of biological tissues via the use of cell-laden hydrogel scaffolds with an architecture that mimics the tissue matrix, and with the desired three-dimensional (3D) external geometry. However, mimicking the heterogeneous tissues that most organs and tissues are formed of is challenging. Although multiple-head 3D printing systems have been proposed for fabricating heterogeneous cell-laden hydrogel scaffolds, to date only the simple exterior form has been realized. Here we describe a computer-aided design and manufacturing (CAD/CAM) system for this application. We aim to develop an algorithm to enable easy, intuitive design and fabrication of a heterogeneous cell-laden hydrogel scaffolds with a free-form 3D geometry. The printing paths of the scaffold are automatically generated from the 3D CAD model, and the scaffold is then printed by dispensing four materials; i.e., a frame, two kinds of cell-laden hydrogel and a support. We demonstrated printing of heterogeneous tissue models formed of hydrogel scaffolds using this approach, including the outer ear, kidney and tooth tissue. These results indicate that this approach is particularly promising for tissue engineering and 3D printing applications to regenerate heterogeneous organs and tissues with tailored geometries to treat specific defects or injuries.
|Channel:||Website - Printed|
|Audience:||Scientists - Researchers - Students - Industry|
|User access:||Open access|
|Purpose:||Method development - Documentation and information|
Did you find what you were looking for?Yes, I found it! No, I did not!
Thanks for your feedback! Please note that we cannot respond unless you supply your email address.
What are you looking for?
Please give us your feedback so we can improve the information on the page. Thank you in advance for your help. Please add your email address if you would like a reply.Please contact us by email if you have any questions.