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1、DescriptioninProfessional CommunicationDescribing a deviceDescribing a deviceTechnical manualResearch paperhttps:/mars.nasa.gov/msl/mission/rover/IllustrationText+3D Bioprinting of Tissues and OrgansMurphy SV,Atala A.3D bioprinting of tissues and organs.Nat Biotechnol.2014;32(8):77385.Figure 2 Compo
2、nents of inkjet,microextrusion and laser-assisted bioprinters.(c)Laser-assisted printers use lasers focused on an absorbing substrate to generate pressures that propel cell-containing materials onto a collector substrate.physical structurecomponentsconnectionssizetexturephysical structurecomponentsc
3、onnectionsfunctioninteractionsizetextureLaser-assisted bioprinting,which is based on laser-induced transfer,consists mainly of three components:a pulsed laser source,a donor layer,and a receiving substrate.The donor layer is composed of an energy-absorbing layer(e.g.,gold or titanium)on the top and
4、a layer of mixed bioink solution(e.g.,hydrogel and/or cells)on the bottom.A high-pressure bubble is formed at the interface of the bioink layer after the energy-absorbing layer is stimulated by focused laser pulses which evaporate donor layer part,and then the cell-containing solution is propelled t
5、o the receiving substrate.The advantage of this technology is the high cell viability achieved as a result of the low mechanical stress on the cells due to the non-direct method between the bioink and dispenser.Furthermore,it is possible to deposit highly viscous materials with the high cell density
6、 concentrated bioink,and the bioprinter is able to use various types of bioink.Kim et.al.Mesenchymal stem cell 3D encapsulation technologies for biomimetic microenvironment in tissue regeneration.Stem Cell Research&Therapy(2019)10:51Laser-assisted bioprinting,which is based on laser-induced transfer
7、,consists mainly of three components:a pulsed laser source,a donor layer,and a receiving substrate.The donor layer is composed of an energy-absorbing layer(e.g.,gold or titanium)on the top and a layer of mixed bioink solution(e.g.,hydrogel and/or cells)on the bottom.A high-pressure bubble is formed
8、at the interface of the bioink layer after the energy-absorbing layer is stimulated by focused laser pulses which evaporate donor layer part,and then the cell-containing solution is propelled to the receiving substrate.The advantage of this technology is the high cell viability achieved as a result
9、of the low mechanical stress on the cells due to the non-direct method between the bioink and dispenser.Furthermore,it is possible to deposit highly viscous materials with the high cell density concentrated bioink,and the bioprinter is able to use various types of bioink.Kim et.al.Mesenchymal stem c
10、ell 3D encapsulation technologies for biomimetic microenvironment in tissue regeneration.Stem Cell Research&Therapy(2019)10:51Laser-assisted bioprinting,which is based on laser-induced transfer,consists mainly of three components:a pulsed laser source,a donor layer,and a receiving substrate.The dono
11、r layer is composed of an energy-absorbing layer(e.g.,gold or titanium)on the top and a layer of mixed bioink solution(e.g.,hydrogel and/or cells)on the bottom.A high-pressure bubble is formed at the interface of the bioink layer after the energy-absorbing layer is stimulated by focused laser pulses
12、 which evaporate donor layer part,and then the cell-containing solution is propelled to the receiving substrate.The advantage of this technology is the high cell viability achieved as a result of the low mechanical stress on the cells due to the non-direct method between the bioink and dispenser.Fur
13、thermore,it is possible to deposit highly viscous materials with the high cell density concentrated bioink,and the bioprinter is able to use various types of bioink.Kim et.al.Mesenchymal stem cell 3D encapsulation technologies for biomimetic microenvironment in tissue regeneration.Stem Cell Research
14、&Therapy(2019)10:51Laser-assisted bioprinting,which is based on laser-induced transfer,consists mainly of three components:a pulsed laser source,a donor layer,and a receiving substrate.The donor layer is composed of an energy-absorbing layer(e.g.,gold or titanium)on the top and a layer of mixed bioi
15、nk solution(e.g.,hydrogel and/or cells)on the bottom.A high-pressure bubble is formed at the interface of the bioink layer after the energy-absorbing layer is stimulated by focused laser pulses which evaporate donor layer part,and then the cell-containing solution is propelled to the receiving subst
16、rate.The advantage of this technology is the high cell viability achieved as a result of the low mechanical stress on the cells due to the non-direct method between the bioink and dispenser.Furthermore,it is possible to deposit highly viscous materials with the high cell density concentrated bioink,
17、and the bioprinter is able to use various types of bioink.Kim et.al.Mesenchymal stem cell 3D encapsulation technologies for biomimetic microenvironment in tissue regeneration.Stem Cell Research&Therapy(2019)10:51How is the donor layer constructed?What materials can be used?How does it work?What advantages does it have?Describing a DeviceVisual display:illustration;videophysical structure&featureTextual description:notes for a figure;words in the textfunctions,interactions,evaluations