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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
장호근
Advisor
현택환
Major
공과대학 화학생물공학부
Issue Date
2015-02
Publisher
서울대학교 대학원
Keywords
Ultrasmall nanoparticleSilver nanoparticleMALDI-TOFMass 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
URI
https://hdl.handle.net/10371/129358
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Theses (Master's Degree_화학생물공학부)
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