S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Chemical and Biological Engineering (화학생물공학부) Theses (Master's Degree_화학생물공학부)
Size Characterization of Ultrasmall Silver Nanoparticles Using MALDI-TOF Mass Spectrometry : MALDI-TOF를 이용한 극소 은 나노입자 크기 분석
- 공과대학 화학생물공학부
- Issue Date
- 서울대학교 대학원
- 학위논문 (석사)-- 서울대학교 대학원 : 화학생물공학부, 2015. 2. 현택환.
- 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.