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Heparin-Based Hydrogel/3D Printed Scaffold Composites for Cartilage Regeneration
Heparin-Based Hydrogel/3D Printed Scaffold Composites for Cartilage Regeneration
Heparin-Based Hydrogel/3D Printed Scaffold Composites for Cartilage Regeneration

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105510
ISBN  
9798263326999
DDC  
617
저자명  
Brown, Nettie Elizabeth Sandra.
서명/저자  
Heparin-Based Hydrogel/3D Printed Scaffold Composites for Cartilage Regeneration
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
240 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Hollister, Scott;Temenoff, Johnna S.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약Cartilage's limited self-repair capabilities pose significant clinical challenges, particularly in complex anatomical structures like the ear. Traditional approaches such as autologous grafts and prosthetics have limitations, driving the need for novel solutions. Hydrogels have emerged as promising scaffolds due to their biocompatibility and ability to mimic the native cartilage environment. However, additional support for structural integrity is required.3D printing offers precise control over scaffold geometry and material integration, allowing for tailored constructs. Composite scaffolds combining 3D printed structures with hydrogels show promise in promoting cartilaginous ECM production. However, challenges like biological stability and cell viability need addressing. Composite scaffolds incorporating glycosaminoglycan-based hydrogels mimic native ECM composition, supporting cell survival and chondrogenic maintenance. Heparin-based hydrogels, in particular, offer enhanced chondrogenesis and growth factor sequestration, crucial for cartilage regeneration.This thesis work aimed to streamline cartilage tissue engineering by developing a novel approach for in situ assembly of bioactive composite structures in the operating room (OR), circumventing regulatory challenges associated with extensive in vitro chondrocyte culturing. Composite scaffolds capable of both biological stimulation and structural support essential for cartilage regeneration were developed in this thesis. First novel 3D printed-hydrogel composite scaffolds were developed and characterized. Next, to investigate the impact of cartilage digestion level on extracellular matrix production, isolated chondrocytes, partially digested cartilage, and minced cartilage pieces were xx encapsulated in PEGDA-DTT hydrogels. Lastly, efficacy of heparin sulfation in promoting chondrocyte maintenance and cartilaginous matrix production was assessed. Together these studies support the utilization of composite scaffolds and heparin-based hydrogels for cartilage tissue engineering.
일반주제명  
Tissue engineering
일반주제명  
Biocompatibility
일반주제명  
Transplants & implants
일반주제명  
Nuclear magnetic resonance--NMR
일반주제명  
Extracellular matrix
일반주제명  
Biological products
일반주제명  
Biomedical materials
일반주제명  
Polymerase chain reaction
일반주제명  
Growth factors
일반주제명  
Fibroblasts
일반주제명  
Collagen
일반주제명  
Chondroitin sulfate
일반주제명  
Connective tissue
일반주제명  
Cartilage
일반주제명  
3-D printers
일반주제명  
Design
일반주제명  
Morbidity
일반주제명  
Viscoelasticity
일반주제명  
Stem cells
일반주제명  
Hydrogels
일반주제명  
Biomedical engineering
일반주제명  
Cellular biology
일반주제명  
Materials science
일반주제명  
Mechanics
일반주제명  
Medical imaging
일반주제명  
Surgery
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aBrown,  Nettie  Elizabeth  Sandra.
■24510▼aHeparin-Based  Hydrogel/3D  Printed  Scaffold  Composites  for  Cartilage  Regeneration
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
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■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Hollister,  Scott;Temenoff,  Johnna  S.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aCartilage's  limited  self-repair  capabilities  pose  significant  clinical  challenges,  particularly  in  complex  anatomical  structures  like  the  ear.  Traditional  approaches  such  as  autologous  grafts  and  prosthetics  have  limitations,  driving  the  need  for  novel  solutions.  Hydrogels  have  emerged  as  promising  scaffolds  due  to  their  biocompatibility  and  ability  to  mimic  the  native  cartilage  environment.  However,  additional  support  for  structural  integrity  is  required.3D  printing  offers  precise  control  over  scaffold  geometry  and  material  integration,  allowing  for  tailored  constructs.  Composite  scaffolds  combining  3D  printed  structures  with  hydrogels  show  promise  in  promoting  cartilaginous  ECM  production.  However,  challenges  like  biological  stability  and  cell  viability  need  addressing.  Composite  scaffolds  incorporating  glycosaminoglycan-based  hydrogels  mimic  native  ECM  composition,  supporting  cell  survival  and  chondrogenic  maintenance.  Heparin-based  hydrogels,  in  particular,  offer  enhanced  chondrogenesis  and  growth  factor  sequestration,  crucial  for  cartilage  regeneration.This  thesis  work  aimed  to  streamline  cartilage  tissue  engineering  by  developing  a  novel  approach  for  in  situ  assembly  of  bioactive  composite  structures  in  the  operating  room  (OR),  circumventing  regulatory  challenges  associated  with  extensive  in  vitro  chondrocyte  culturing.  Composite  scaffolds  capable  of  both  biological  stimulation  and  structural  support  essential  for  cartilage  regeneration  were  developed  in  this  thesis.  First  novel  3D  printed-hydrogel  composite  scaffolds  were  developed  and  characterized.  Next,  to  investigate  the  impact  of  cartilage  digestion  level  on  extracellular  matrix  production,  isolated  chondrocytes,  partially  digested  cartilage,  and  minced  cartilage  pieces  were  xx  encapsulated  in  PEGDA-DTT  hydrogels.  Lastly,  efficacy  of  heparin  sulfation  in  promoting  chondrocyte  maintenance  and  cartilaginous  matrix  production  was  assessed.  Together  these  studies  support  the  utilization  of  composite  scaffolds  and  heparin-based  hydrogels  for  cartilage  tissue  engineering.
■590    ▼aSchool  code:  0078.
■650  4▼aTissue  engineering
■650  4▼aBiocompatibility
■650  4▼aTransplants  &  implants
■650  4▼aNuclear  magnetic  resonance--NMR
■650  4▼aExtracellular  matrix
■650  4▼aBiological  products
■650  4▼aBiomedical  materials
■650  4▼aPolymerase  chain  reaction
■650  4▼aGrowth  factors
■650  4▼aFibroblasts
■650  4▼aCollagen
■650  4▼aChondroitin  sulfate
■650  4▼aConnective  tissue
■650  4▼aCartilage
■650  4▼a3-D  printers
■650  4▼aDesign
■650  4▼aMorbidity
■650  4▼aViscoelasticity
■650  4▼aStem  cells
■650  4▼aHydrogels
■650  4▼aBiomedical  engineering
■650  4▼aCellular  biology
■650  4▼aMaterials  science
■650  4▼aMechanics
■650  4▼aMedical  imaging
■650  4▼aSurgery
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■690    ▼a0379
■690    ▼a0794
■690    ▼a0346
■690    ▼a0574
■690    ▼a0576
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360341▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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