Borrow it
Coverart for item
The Resource Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention, by Toni Christian Matson

Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention, by Toni Christian Matson

Creator
Author
Contributor
Summary
The human body has articular cartilage covering the ends of the bones to act as a shock absorber and aid in movement. In a disease state, this articular cartilage breaks down causing pain, swelling, and stiffness. With time, the cartilage continues to wear down, and bone on bone interactions occur. This disease is osteoarthritis (OA), and it is the most prevalent joint degenerative disease, affecting approximately 27 million Americans. OA cannot be reversed, so treatment methodologies are mostly palliative, which only provides temporary pain relief, or alternatively are very invasive, requiring total knee replacement. To help mitigate the progression of OA, a hydrophilic, immunomodulatory membrane was developed, which would be placed over the articulating surface to prevent further degeneration of osteoarthritic cartilage. The electrospun membrane is composed of 20 nm gold nanoparticles, soy lecithin, and the polymer polycaprolactone (PCL). Soy lecithin and PCL solutions were electrospun to develop a unique nonwoven mat for OA. The electrospinning parameters were optimized to achieve different solution ratios for the best fiber formation. Different concentrations of lecithin and PCL were used: the amount of solute needed was 40% (w/v) and the amount of lecithin mixed with PCL was 40% (40:40), and 50% (w/v) solute needed with 50% soy lecithin with PCL (50:50). 20 nm gold nanoparticles were then introduced at 1%, 5%, and 10% (v/v) to modulate the inflammatory response. The chemical composition of the scaffolds was analyzed via Fourier Transform Infrared Spectroscopy (FTIR), and the thermal properties were investigated using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) to determine stability and percent of materials. Contact Angle Measurements were taken to observe the hydrophilicity of the scaffolds. Neutron Activation Analysis (NAA) was performed to quantify the gold nanoparticles present in the mats. Scanning Electron Microscopy (SEM) was conducted to determine fiber formation as well as nanoparticle presence. To characterize the biocompatibility and cytotoxicity of the mats, WST-1 and ROS assays were performed using L929 murine fibroblast cells. It is expected that lecithin and gold will be homogeneously integrated with the PCL and that the mechanical properties will be strong enough to withstand the microenvironment of the knee. This study demonstrated that it is possible to successfully electrospin lecithin and polycaprolactone nanofibrous scaffolds with various polymerized solution concentrations with and without gold nanoparticles. It was hypothesized that the electrospun lecithin/PCL/nanoparticle scaffold would promote hydrophilicity while maintaining strength and flexibility, thereby prolonging mechanical stability in cartilage
Language
eng
Work
Publication
Extent
1 online resource (xi, 61 pages)
Note
  • Field of study: Biological engineering
  • Dr. Sheila Grant, Thesis Supervisor
Instance
Label
Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention
Title
Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention
Statement of responsibility
by Toni Christian Matson
Creator
Contributor
Author
Degree supervisor
Subject
Genre
Language
eng
Summary
The human body has articular cartilage covering the ends of the bones to act as a shock absorber and aid in movement. In a disease state, this articular cartilage breaks down causing pain, swelling, and stiffness. With time, the cartilage continues to wear down, and bone on bone interactions occur. This disease is osteoarthritis (OA), and it is the most prevalent joint degenerative disease, affecting approximately 27 million Americans. OA cannot be reversed, so treatment methodologies are mostly palliative, which only provides temporary pain relief, or alternatively are very invasive, requiring total knee replacement. To help mitigate the progression of OA, a hydrophilic, immunomodulatory membrane was developed, which would be placed over the articulating surface to prevent further degeneration of osteoarthritic cartilage. The electrospun membrane is composed of 20 nm gold nanoparticles, soy lecithin, and the polymer polycaprolactone (PCL). Soy lecithin and PCL solutions were electrospun to develop a unique nonwoven mat for OA. The electrospinning parameters were optimized to achieve different solution ratios for the best fiber formation. Different concentrations of lecithin and PCL were used: the amount of solute needed was 40% (w/v) and the amount of lecithin mixed with PCL was 40% (40:40), and 50% (w/v) solute needed with 50% soy lecithin with PCL (50:50). 20 nm gold nanoparticles were then introduced at 1%, 5%, and 10% (v/v) to modulate the inflammatory response. The chemical composition of the scaffolds was analyzed via Fourier Transform Infrared Spectroscopy (FTIR), and the thermal properties were investigated using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) to determine stability and percent of materials. Contact Angle Measurements were taken to observe the hydrophilicity of the scaffolds. Neutron Activation Analysis (NAA) was performed to quantify the gold nanoparticles present in the mats. Scanning Electron Microscopy (SEM) was conducted to determine fiber formation as well as nanoparticle presence. To characterize the biocompatibility and cytotoxicity of the mats, WST-1 and ROS assays were performed using L929 murine fibroblast cells. It is expected that lecithin and gold will be homogeneously integrated with the PCL and that the mechanical properties will be strong enough to withstand the microenvironment of the knee. This study demonstrated that it is possible to successfully electrospin lecithin and polycaprolactone nanofibrous scaffolds with various polymerized solution concentrations with and without gold nanoparticles. It was hypothesized that the electrospun lecithin/PCL/nanoparticle scaffold would promote hydrophilicity while maintaining strength and flexibility, thereby prolonging mechanical stability in cartilage
Cataloging source
MUU
http://library.link/vocab/creatorName
Matson, Toni Christian
Degree
M.S.
Dissertation note
Thesis
Dissertation year
2018.
Government publication
government publication of a state province territory dependency etc
Granting institution
University of Missouri--Columbia
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
Grant, Sheila Ann
Label
Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention, by Toni Christian Matson
Instantiates
Publication
Note
  • Field of study: Biological engineering
  • Dr. Sheila Grant, Thesis Supervisor
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
1098242313
Extent
1 online resource (xi, 61 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some color)
Specific material designation
remote
System control number
(OCoLC)1098242313
Label
Electrospinning lecithin-polycaprolactone scaffolds with gold nanoparticles for osteoarthritis prevention, by Toni Christian Matson
Publication
Note
  • Field of study: Biological engineering
  • Dr. Sheila Grant, Thesis Supervisor
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
1098242313
Extent
1 online resource (xi, 61 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some color)
Specific material designation
remote
System control number
(OCoLC)1098242313

Subject

Genre

Library Locations

  • Ellis LibraryBorrow it
    1020 Lowry Street, Columbia, MO, 65201, US
    38.944491 -92.326012
  • Engineering Library & Technology CommonsBorrow it
    W2001 Lafferre Hall, Columbia, MO, 65211, US
    38.946102 -92.330125
  • Fisher Delta Research CenterBorrow it
    2-64 Agricultural Bldg, Columbia, MO, 65201, US
    38.958397 -92.303491
  • Geological Sciences LibraryBorrow it
    201 Geological Sciences, Columbia, MO, 65211, US
    38.947375 -92.329062
  • J. Otto Lottes Health Sciences LibraryBorrow it
    1 Hospital Dr, Columbia, MO, 65201, US
    38.939544 -92.328377
  • Journalism LibraryBorrow it
    102 Reynolds Jrnlism Institute, Columbia, MO, 65211, US
    38.947290 -92.328025
  • Mathematical Sciences LibraryBorrow it
    104 Ellis Library, Columbia, MO, 65201, US
    38.944377 -92.326537
  • University ArchivesBorrow it
    Columbia, MO, 65201, US
  • University Archives McAlester AnnexBorrow it
    703 Lewis Hall, Columbia, MO, 65211, US
    38.934630 -92.342290
  • University of Missouri Libraries DepositoryBorrow it
    2908 Lemone Blvd, Columbia, MO, 65211, US
    38.919360 -92.291620
  • Zalk Veterinary Medical LibraryBorrow it
    Veterinary Medicine West, Columbia, MO, 65211, US
    38.941099 -92.317911

Library Links

Structured data from the Bibframe namespace is licensed under the Creative Commons Attribution 4.0 International License by University of Missouri Libraries. Additional terms may apply to data associated with third party namespaces.
Processing Feedback ...