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Size Characterization of Ultrasmall Silver Nanoparticles Using MALDI-TOF Mass Spectrometry : MALDI-TOF를 이용한 극소 은 나노입자 크기 분석
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- Authors
- Advisor
- 현택환
- Major
- 공과대학 화학생물공학부
- Issue Date
- 2015-02
- Publisher
- 서울대학교 대학원
- Keywords
- Ultrasmall nanoparticle ; Silver nanoparticle ; MALDI-TOF ; Mass Spectrometry
- Description
- 학위논문 (석사)-- 서울대학교 대학원 : 화학생물공학부, 2015. 2. 현택환.
- Abstract
- We present a rapid and reliable method to determine the sizes and size distributions of silver nanoparticles smaller than 5 nm using matrix-assisted laser desorption & ionization-time-of-flight (MALDI-TOF) mass spectrometry (MS). The MS data could be converted to size information using a simple equation derived by Cardanos formula.
Calculated coefficients of size-to-mass equation were different, but the differences among the data set were negligible. Furthermore, size-to-mass equation for anisotropic particles were derived by similar process done for spherical particles. This suggests MALDI-TOF MS could be used not only for characterizing size properties, but also for characterizing shapes and sizes with high accuracy. This shows MALDI-TOF MS as useful technique in nanotechnology.
- Language
- English
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