Extrusion-Based Bioink Printing Systems
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Questions and Answers

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)?

<p>Control the movement of light source (B)</p> 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?

<p>Cell lysis and DNA damage (C)</p> Signup and view all the answers

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

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

What are the characteristics of 3D bioprinting?

<p>Automation and high precision (D)</p> Signup and view all the answers

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

<p>Stereolithography bioprinting (C)</p> Signup and view all the answers

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

<p>Stereolithography bioprinting (B)</p> Signup and view all the answers

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

<p>Customizability (A)</p> Signup and view all the answers

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

<p>High precision in tissue patterning (B)</p> Signup and view all the answers

What distinguishes droplet-based bioprinting from other bioprinting methods?

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

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

<p>Scalability and greater printing speed (D)</p> Signup and view all the answers

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

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

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

<p>Capable of forming cell spheroids and strands (D)</p> 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?

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

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

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

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