Extrusion-Based Bioink Printing Systems

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What are the two basic types of 3D patterning mentioned in the text for bioprinting large-scale vascularized functional tissue?

Pixel pattern and Layer pattern

Type I pattern and Type II pattern (correct)

Type A pattern and Type B pattern

Illumination pattern and Resin pattern

What is the technology used in stereolithography bioprinting to form a 3D structure?

Layer of photopolymer resin polymerized by light irradiation (correct)

Exposing cells to UV radiation

Polymerizing a whole layer at once

Cell-A and Cell-B fabrication

What is the main advantage of stereolithography bioprinting mentioned in the text?

Suitable for intraoperative bioprinting

Compatibility with all types of bioinks

Highest resolution (correct)

Low cost production

In the context of bioprinting, what is the function of a Digital Micromirror Device (DMD)?

Control the movement of light source (B) Signup and view all the answers

What is the potential risk to cells exposed to UV radiation in stereolithography bioprinting as mentioned in the text?

Cell lysis and DNA damage (C) Signup and view all the answers

How does Intraoperative Bioprinting (IOB) using the biopen differ from other bioprinting methods?

IOB is designed for on-the-spot treatment during surgery (C) Signup and view all the answers

What are the characteristics of 3D bioprinting?

Automation and high precision (D) Signup and view all the answers

Which type of bioprinting technology enables fabrication of biomimetic, multi-cellular tissues layer by layer?

Stereolithography bioprinting (C) Signup and view all the answers

In bioprinting, which method relies on solidifying liquid resin layer by layer using UV light?

Stereolithography bioprinting (B) Signup and view all the answers

What is a key advantage of 3D bioprinting in creating bionic ears?

Customizability (A) Signup and view all the answers

Which characteristic is essential for the successful bioprinting of vascularized functional tissues?

High precision in tissue patterning (B) Signup and view all the answers

What distinguishes droplet-based bioprinting from other bioprinting methods?

Deposits cell-laden droplets onto a substrate to form tissues (B) Signup and view all the answers

What is the main advantage of syringe or nozzle-based bioprinting systems?

Scalability and greater printing speed (D) Signup and view all the answers

In extrusion-based bioprinting, what is the main limitation mentioned in the text?

Low cell viability ranging from 40% to 95% (C) Signup and view all the answers

What is a common feature of scaffold-free inks used in bioprinting according to the text?

Capable of forming cell spheroids and strands (D) Signup and view all the answers

What is the significance of the photomicrograph showing viability of neocartilaginous tissue in contact with the coil antenna in the bionic ear model?

Shows the successful integration of living tissue with an electronic component (D) Signup and view all the answers

What is a key feature of extrusion-based (direct writing) bioprinting?

Employs high pressure mechanical force like a piston or screw (C) Signup and view all the answers