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Development of 3D Printed Adhesive Tissue Engineering Scaffold
Development of 3D Printed Adhesive Tissue Engineering Scaffold
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105552
- ISBN
- 9798265401847
- DDC
- 617
- 저자명
- Chen, Shuai.
- 서명/저자
- Development of 3D Printed Adhesive Tissue Engineering Scaffold
- 발행사항
- [Sl] : Georgia Institute of Technology, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 185 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
- 주기사항
- Advisor: Chen, Haifeng;Serpooshan, Vahid.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
- 초록/해제
- 요약Tissue engineering scaffolds (TESs) are temporary extracellular matriximitation that facilitate cellular adhesion, growth, proliferation, and differentiation, and provide a suitable environment for promoting tissue regeneration. On the basisofpre-designed models, 3 dimensional printing (3D printing) technology can be utilizedto create TESs with desired structures and shapes. In general, TESs need to befixedonto tissue surface through suturing or bio-glue. Traditional fixation methods havemultiple disadvantages, such as secondary damage caused by suturing, andcytotoxicity or possible inflammation caused by bio-glue. The objective of this studyis to develop 3D-printed TESs with intrinsic bio-adhesion property that canbeadhered to damaged tissues without the help of suturing or bio-glue.In order to achieve this goal, in the first version of protocol, dopamine graftedhyaluronic acid methacrylate (HAMA-dopa) and gelatin methacryloyl (GelMA) wereused as major components in bio-ink. Adhesive tissue engineering scaffolds (ATESs)were prepared by freeform reversible embedding of suspended hydrogels (FRESH)printing and air printing (directly print on the substrate) through extrusion. Thebio-adhesion strength of ATESs from the two methods was compared, and the resultsshowed that the adhesion strength of scaffolds prepared by the latter methodwasstronger. However, as the latter method is not clinically convenient andrequiresophisticated operation, a type of ATES that could have both high enough in vivo adhesion property and convenient clinical application is required.In the improved version of protocol for fabricating advanced ATESs, tyraminegrafted hyaluronic acid methacrylate (HAMA-tyr), gelatin and GelMAwere usedasmajor components in the bio-ink and FRESH printing was adopted as fabricationmethod. The resulted ATESs are off-the-shelf products that are convenient for clinical application. The ATES in the group with the highest adhesion property was adheredtothe heart surface of a mouse model with myocardial infarction, which was kept alivefor 4 weeks. The results demonstrated that the ATES had enough in vivo adhesionproperty to be kept on the tissue surface for a proper time length.In this study, stereolithography (SL) was also used to prepare ATESs. Compared with extrusion printing, SL has the advantages of high fidelity andshort production time. In this study, SL was used to fabricate ATESs with blood vesselsorporous structures to demonstrate that the method could be used to produce ATESswith sophisticated internal and external structures.The mechanical properties, swelling behavior, porosity and cytotoxicityof thematerials were tested, and the results showed that the 3D printed ATESs haveappropriate properties to be functional scaffolds. The fidelity of printing basedondifferent models was evaluated in micro and bulk perspectives, and the resultsindicated that 3D printed ATESs could be fabricated with acceptable accuracybasedon models. In addition, the in vitro adhesion properties of the ATESs under tensile, shear or dynamic stress in air or underwater were tested, and the results showedthat the modification methods being used in this study can improve the adhesionstrengthof the 3D printed ATESs.The major target of this study was to develop and fabricate shape/structural designable ATESs with high in vivo adhesion property and application convenience. For achieving the target, advanced fabrication protocol was developed basedontheexperience of the first version, and bio-ink, printing process and fabrication procedureto produce such ATESs were developed. The in vivo adhesion property of the ATESwas demonstrated in a mouse model of myocardial infarction for 4 weeks. Inorder toaccommodate for a variety of application situations, both extrusion printingandstereolithography were used to fabricate the ATESs. The analyze of the otherproperties, such as mechanical properties, swelling behavior, porosity and cytotoxicity, demonstrated that the ATESs were qualified as a functional scaffold for cell supporting and the procedures for the improvement of adhesion properties wouldnot compromise the function of the ATESs as an appropriate scaffold.
- 일반주제명
- Tissue engineering
- 일반주제명
- Software
- 일반주제명
- Solidification
- 일반주제명
- Cytotoxicity
- 일반주제명
- Chemical reactions
- 일반주제명
- Bones
- 일반주제명
- Immunology
- 일반주제명
- Adhesion
- 일반주제명
- Surgical outcomes
- 일반주제명
- Printing
- 일반주제명
- Adhesives
- 일반주제명
- Inflammation
- 일반주제명
- Polymers
- 일반주제명
- Hyaluronic acid
- 일반주제명
- Viscosity
- 일반주제명
- Surgery
- 일반주제명
- Heart attacks
- 일반주제명
- Cartilage
- 일반주제명
- 3-D printers
- 일반주제명
- Design
- 일반주제명
- Chemical bonds
- 일반주제명
- Bond strength
- 일반주제명
- Hydrogels
- 일반주제명
- Biomedical engineering
- 일반주제명
- Cellular biology
- 일반주제명
- Medicine
- 일반주제명
- Polymer chemistry
- 기본자료저록
- Dissertations Abstracts International. 87-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105552
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■0820 ▼a617
■1001 ▼aChen, Shuai.
■24510▼aDevelopment of 3D Printed Adhesive Tissue Engineering Scaffold
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a185 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: A.
■500 ▼aAdvisor: Chen, Haifeng;Serpooshan, Vahid.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2023.
■520 ▼aTissue engineering scaffolds (TESs) are temporary extracellular matriximitation that facilitate cellular adhesion, growth, proliferation, and differentiation, and provide a suitable environment for promoting tissue regeneration. On the basisofpre-designed models, 3 dimensional printing (3D printing) technology can be utilizedto create TESs with desired structures and shapes. In general, TESs need to befixedonto tissue surface through suturing or bio-glue. Traditional fixation methods havemultiple disadvantages, such as secondary damage caused by suturing, andcytotoxicity or possible inflammation caused by bio-glue. The objective of this studyis to develop 3D-printed TESs with intrinsic bio-adhesion property that canbeadhered to damaged tissues without the help of suturing or bio-glue.In order to achieve this goal, in the first version of protocol, dopamine graftedhyaluronic acid methacrylate (HAMA-dopa) and gelatin methacryloyl (GelMA) wereused as major components in bio-ink. Adhesive tissue engineering scaffolds (ATESs)were prepared by freeform reversible embedding of suspended hydrogels (FRESH)printing and air printing (directly print on the substrate) through extrusion. Thebio-adhesion strength of ATESs from the two methods was compared, and the resultsshowed that the adhesion strength of scaffolds prepared by the latter methodwasstronger. However, as the latter method is not clinically convenient andrequiresophisticated operation, a type of ATES that could have both high enough in vivo adhesion property and convenient clinical application is required.In the improved version of protocol for fabricating advanced ATESs, tyraminegrafted hyaluronic acid methacrylate (HAMA-tyr), gelatin and GelMAwere usedasmajor components in the bio-ink and FRESH printing was adopted as fabricationmethod. The resulted ATESs are off-the-shelf products that are convenient for clinical application. The ATES in the group with the highest adhesion property was adheredtothe heart surface of a mouse model with myocardial infarction, which was kept alivefor 4 weeks. The results demonstrated that the ATES had enough in vivo adhesionproperty to be kept on the tissue surface for a proper time length.In this study, stereolithography (SL) was also used to prepare ATESs. Compared with extrusion printing, SL has the advantages of high fidelity andshort production time. In this study, SL was used to fabricate ATESs with blood vesselsorporous structures to demonstrate that the method could be used to produce ATESswith sophisticated internal and external structures.The mechanical properties, swelling behavior, porosity and cytotoxicityof thematerials were tested, and the results showed that the 3D printed ATESs haveappropriate properties to be functional scaffolds. The fidelity of printing basedondifferent models was evaluated in micro and bulk perspectives, and the resultsindicated that 3D printed ATESs could be fabricated with acceptable accuracybasedon models. In addition, the in vitro adhesion properties of the ATESs under tensile, shear or dynamic stress in air or underwater were tested, and the results showedthat the modification methods being used in this study can improve the adhesionstrengthof the 3D printed ATESs.The major target of this study was to develop and fabricate shape/structural designable ATESs with high in vivo adhesion property and application convenience. For achieving the target, advanced fabrication protocol was developed basedontheexperience of the first version, and bio-ink, printing process and fabrication procedureto produce such ATESs were developed. The in vivo adhesion property of the ATESwas demonstrated in a mouse model of myocardial infarction for 4 weeks. Inorder toaccommodate for a variety of application situations, both extrusion printingandstereolithography were used to fabricate the ATESs. The analyze of the otherproperties, such as mechanical properties, swelling behavior, porosity and cytotoxicity, demonstrated that the ATESs were qualified as a functional scaffold for cell supporting and the procedures for the improvement of adhesion properties wouldnot compromise the function of the ATESs as an appropriate scaffold.
■590 ▼aSchool code: 0078.
■650 4▼aTissue engineering
■650 4▼aSoftware
■650 4▼aSolidification
■650 4▼aCytotoxicity
■650 4▼aChemical reactions
■650 4▼aBones
■650 4▼aImmunology
■650 4▼aAdhesion
■650 4▼aSurgical outcomes
■650 4▼aPrinting
■650 4▼aAdhesives
■650 4▼aInflammation
■650 4▼aPolymers
■650 4▼aHyaluronic acid
■650 4▼aViscosity
■650 4▼aSurgery
■650 4▼aHeart attacks
■650 4▼aCartilage
■650 4▼a3-D printers
■650 4▼aDesign
■650 4▼aChemical bonds
■650 4▼aBond strength
■650 4▼aHydrogels
■650 4▼aBiomedical engineering
■650 4▼aCellular biology
■650 4▼aMedicine
■650 4▼aPolymer chemistry
■690 ▼a0389
■690 ▼a0982
■690 ▼a0576
■690 ▼a0541
■690 ▼a0379
■690 ▼a0564
■690 ▼a0495
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05A.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360595▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


