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Innovations in Physical Virology with Scanning Probe Microscopy
Innovations in Physical Virology with Scanning Probe Microscopy
Innovations in Physical Virology with Scanning Probe Microscopy

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211152021
ISBN  
9798384037170
DDC  
540
저자명  
Ault, Charles A.
서명/저자  
Innovations in Physical Virology with Scanning Probe Microscopy
발행사항  
[Sl] : Indiana University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
142 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
주기사항  
Advisor: Dragnea, Bogdan.
학위논문주기  
Thesis (Ph.D.)--Indiana University, 2024.
초록/해제  
요약New approaches to physical virology utilizing atomic force microscopy were developed and implemented to investigate the mechanics of viral adhesion, structure, and disassembly. An approach to lateral pushing was developed which generates a multi-parameter data set. This was used for the first time to interrogate the physical forces of adhesion and the dynamics of the motion of compliant nanoparticles under lateral pushing. Particle species was found to play a significant role in the mechanical work required to move a particle, with substrate functionalization playing a secondary role. Lateral force manipulation by AFM was then used to study the surface displacement of virus like particles with modulated physical properties, inducing physical disruption and disintegration in some cases. Particle disintegration was found to often occur via propagation of disruption from sites of capsomer dislocation. Limited self-healing behavior was also observed. Related to the steps of disassembly, high-resolution topographic imaging was paired with mass spectroscopy to investigate the formation and propagation of early defects (vacancies) in protein shells derived from the murine polyoma virus. It was found that capsomer vacancies occur first at sites of high stress and propagate via the detachment of nearest neighbor capsomers. Finally, capsid rigidity was analyzed by AFM via the collection of topographic data for dye-labelled capsids carrying a variable number of covalently conjugated dyes to investigate the interplay between dye number, particle rigidity, and establish whether there is a correlation between mechanical parameters and the emergence of a collective optical property in dye-labelled brome mosaic virus capsids.
일반주제명  
Chemistry
일반주제명  
Biophysics
일반주제명  
Virology
일반주제명  
Medical imaging
일반주제명  
Nanoscience
키워드  
Atomic force microscopy
키워드  
Nanoparticles
키워드  
Lateral force manipulation
키워드  
Particle disintegration
키워드  
Murine polyoma virus
기타저자  
Indiana University Chemistry
기본자료저록  
Dissertations Abstracts International. 86-03B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■035    ▼a(MiAaPQ)AAI31332358
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a540
■1001  ▼aAult,  Charles  A.▼0(orcid)0000-0001-6433-1253
■24510▼aInnovations  in  Physical  Virology  with  Scanning  Probe  Microscopy
■260    ▼a[Sl]▼bIndiana  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a142  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-03,  Section:  B.
■500    ▼aAdvisor:  Dragnea,  Bogdan.
■5021  ▼aThesis  (Ph.D.)--Indiana  University,  2024.
■520    ▼aNew  approaches  to  physical  virology  utilizing  atomic  force  microscopy  were  developed  and  implemented  to  investigate  the  mechanics  of  viral  adhesion,  structure,  and  disassembly.  An  approach  to  lateral  pushing  was  developed  which  generates  a  multi-parameter  data  set.  This  was  used  for  the  first  time  to  interrogate  the  physical  forces  of  adhesion  and  the  dynamics  of  the  motion  of  compliant  nanoparticles  under  lateral  pushing.  Particle  species  was  found  to  play  a  significant  role  in  the  mechanical  work  required  to  move  a  particle,  with  substrate  functionalization  playing  a  secondary  role.  Lateral  force  manipulation  by  AFM  was  then  used  to  study  the  surface  displacement  of  virus  like  particles  with  modulated  physical  properties,  inducing  physical  disruption  and  disintegration  in  some  cases.  Particle  disintegration  was  found  to  often  occur  via  propagation  of  disruption  from  sites  of  capsomer  dislocation.  Limited  self-healing  behavior  was  also  observed.  Related  to  the  steps  of  disassembly,  high-resolution  topographic  imaging  was  paired  with  mass  spectroscopy  to  investigate  the  formation  and  propagation  of  early  defects  (vacancies)  in  protein  shells  derived  from  the  murine  polyoma  virus.  It  was  found  that  capsomer  vacancies  occur  first  at  sites  of  high  stress  and  propagate  via  the  detachment  of  nearest  neighbor  capsomers.  Finally,  capsid  rigidity  was  analyzed  by  AFM  via  the  collection  of  topographic  data  for  dye-labelled  capsids  carrying  a  variable  number  of  covalently  conjugated  dyes  to  investigate  the  interplay  between  dye  number,  particle  rigidity,  and  establish  whether  there  is  a  correlation  between  mechanical  parameters  and  the  emergence  of  a  collective  optical  property  in  dye-labelled  brome  mosaic  virus  capsids.
■590    ▼aSchool  code:  0093.
■650  4▼aChemistry
■650  4▼aBiophysics
■650  4▼aVirology
■650  4▼aMedical  imaging
■650  4▼aNanoscience
■653    ▼aAtomic  force  microscopy
■653    ▼aNanoparticles
■653    ▼aLateral  force  manipulation  
■653    ▼aParticle  disintegration
■653    ▼aMurine  polyoma  virus
■690    ▼a0485
■690    ▼a0786
■690    ▼a0720
■690    ▼a0565
■690    ▼a0574
■71020▼aIndiana  University▼bChemistry.
■7730  ▼tDissertations  Abstracts  International▼g86-03B.
■790    ▼a0093
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162517▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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