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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
- Nanoparticles
- 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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■00520250211152021
■006m o d
■007cr#unu||||||||
■020 ▼a9798384037170
■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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