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Facile Synthesis of Gold@Graphitized Mesoporous Silica Nanocomposite and Its Surface-Assisted Laser Desorption/lonization for Time-of-Flight Mass Spectroscopy
Xu, Guiju1,2; Liu, Shengju1,2; Peng, Jiaxi1,2; Lv, Wenping1; Wu, Ren'an1
关键词Gold Graphitized Mesoporous Silica Core-shell Saldi-tof Ms
刊名ACS APPLIED MATERIALS & INTERFACES
2015-01-28
DOI10.1021/am507894y
7期:3页:2032-2038
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Science & Technology - Other Topics ; Materials Science
关键词[WOS]MALDI-TOF-MS ; MULTIWALLED CARBON NANOTUBES ; SMALL MOLECULES ; DESORPTION-IONIZATION ; SPECTROMETRY ANALYSIS ; GRAPHENE OXIDE ; DESORPTION/IONIZATION ; MATRIX ; NANOPARTICLES ; ENRICHMENT
英文摘要In this work, a novel core-shell structured gold@graphitized mesoporous silica nanocomposite (Au@GMSN) was synthesized by in situ graphitization of template within the mesochannels of mesoporous silica shell on gold core and demonstrated to be promising nanomaterials for surface-assisted laser desorption/ionization time-of-flight mass spectroscopy (SALDI-TOF MS). The integration of the graphitized mesoporous silica with the gold nanoparticles endowed Au@GMSN with large surface areas of graphitic structure, good dispersibility, and strong ultraviolet (UV) absorption. Au@GMSN exerted the synergistic effect on the efficient detection of small-molecular-weight analytes including amino acids, neutral saccharides, peptides, and traditional Chinese medicine. The Au@GMSN-assisted laser desorption/ionization exhibited the following superiorities: high ionization efficiency, low fragmentation interference, favorable salt tolerance, and good reproducibility. Moreover, because of the large hydrophobic inner surface area of the graphitized mesoporous silica shell, the Au@GMSN demonstrated its promising capacity in the pre-enrichment of aromatic analytes prior to SALDI-TOF MS, which favored rapid and sensitive detection.
语种英语
WOS记录号WOS:000348688700078
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146009
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Xu, Guiju,Liu, Shengju,Peng, Jiaxi,et al. Facile Synthesis of Gold@Graphitized Mesoporous Silica Nanocomposite and Its Surface-Assisted Laser Desorption/lonization for Time-of-Flight Mass Spectroscopy[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(3):2032-2038.
APA Xu, Guiju,Liu, Shengju,Peng, Jiaxi,Lv, Wenping,&Wu, Ren'an.(2015).Facile Synthesis of Gold@Graphitized Mesoporous Silica Nanocomposite and Its Surface-Assisted Laser Desorption/lonization for Time-of-Flight Mass Spectroscopy.ACS APPLIED MATERIALS & INTERFACES,7(3),2032-2038.
MLA Xu, Guiju,et al."Facile Synthesis of Gold@Graphitized Mesoporous Silica Nanocomposite and Its Surface-Assisted Laser Desorption/lonization for Time-of-Flight Mass Spectroscopy".ACS APPLIED MATERIALS & INTERFACES 7.3(2015):2032-2038.
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