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Home / News / Science News / Wake Forest University Scientists print living body parts
  • Science

    Wake Forest University Scientists print living body parts

    Prachi
    Written by
    Prachi
    Mail
    Last updated on Feb 16, 2016, 03:57 pm
    Wake Forest University Scientists print living body parts
    Credits:
  • Scientists from Wake Forest University printed a transplantable human ear, muscles and bone tissues using an advanced bio printer, in a US Army funded study.

    The printed tissues were successsfuly transplanted onto mice, details of which appeared in the journal, Nature Biotechnology.

    Once refined and proven safe for humans, 3D bio printed parts could be used to replace damaged tissues in patients.

  • In this article
    What is 3D bioprinting? The first bioprinting patent Wake Forest scientists grow bladder Bioprinting's biggest challenges Atala's breakthrough technology leads to structurally stable tissues Functionality of transplanted tissues explored Wake Forest University Scientists print living body parts Atala's research paves way for custom-made transplants
  • Introduction

    What is 3D bioprinting?

    What is 3D bioprinting?
  • 3D bioprinting is an offshoot of 3D technology, still in its early stages, that aims to allow scientists to build a living organ, layer by layer, using scanners and printers traditionally reserved for building prototypes and automobile parts.

    Bioprinting would enable fabrication of fully functional organs for transplants and drug research.

    Presently, research to bioprint spray-on skin, organs and even hands is underway.

  • Information

    The first bioprinting patent

  • Organova, a US-based regenerative medicine company, was the first to apply for a patent for bioprinting in 2002, which was granted to it in 2006. The company was the first to launch and commercialize 3D bioprinting.

  • 2006

    Wake Forest scientists grow bladder

    Wake Forest scientists grow bladder
    Credits:
  • A research team at the Wake Forest Institute of Regenerative Medicine, in the US, headed by Dr. Anthony Atala announced the first ever growth and transplantation of a human organ- the bladder.

    Atala's team received funding from the Armed Institute of Regenerative Medicines for creating organ implants for injured military personnel.

    Organs that the team aimed to reproduce included kidneys, genitals and even fingers.

  • Challenges

    Bioprinting's biggest challenges

    Bioprinting's biggest challenges
    Credits:
  • So far, bioprinted tissues were too weak and structurally unstable for surgical implantation, as bioprinters could not print tissues of the right structural stability.

    Tissues require blood vessels for a steady supply of oxygen and nutrients in order to survive.

    However, bioprinters were also incapable of printing structures as delicate as blood vessels, that are no more than 0.07 inches or 200 microns wide.

  • 16 Feb 2016

    Atala's breakthrough technology leads to structurally stable tissues

    Atala's  breakthrough technology leads to structurally stable tissues
    Credits:
  • Atala's team developed the Integrated Tissue and Organ Printing System (ITOP).

    The ITOP first creates a tissue shape using biodegradable polymers, on which cells, made of bioink, carried by a water-based gel are deposited.

    The bioink was developed to have the right consistency and the required strength after hardening.

    A temporary outer cover protects the tissue's shape while printing.

  • 16 Feb 2016

    Functionality of transplanted tissues explored

    Functionality of transplanted tissues explored
    Credits:
  • The printed structures were perforated with micro-channels to enable the growth of blood vessels through the tissue.

    The tissues, including an ear the size of a baby's and a fragment of a jaw bone, were tested by implanting them in live rats.

    The transplanted ear displayed blood vessel formation after two months while the transplanted jaw bone showed vascularized tissue development after five months.

  • 16 Feb 2016

    Wake Forest University Scientists print living body parts

    Wake Forest University Scientists print living body parts
    Credits:
  • Scientists from Wake Forest University printed a transplantable human ear, muscles and bone tissues using an advanced bio printer, in a US Army funded study.

    The printed tissues were successsfuly transplanted onto mice, details of which appeared in the journal, Nature Biotechnology.

    Once refined and proven safe for humans, 3D bio printed parts could be used to replace damaged tissues in patients.

  • Information

    Atala's research paves way for custom-made transplants

  • The research led by Atala may pave the way for people to get custom-made organ transplants using their own cells, or closely matched cells, grown to just the right size and shape.

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