Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Ho Wai Tang"'
Publikováno v:
ACS Omega, Vol 2, Iss 9, Pp 6031-6038 (2017)
Externí odkaz:
https://doaj.org/article/96c4ec4ca3db4710b6c6036bec283998
Autor:
Ching-Wan Lam, Yu-Hong Cheng, Toby Siu-Chung Tam, Ho-Wai Tang, Kwan-Ming Ng, Samuel Kin-Man Lai, SL Chau, Chun-Nam Lok
Publikováno v:
Chemical Communications. 55:2761-2764
The localized surface plasmon resonance property of gold nanoparticles enables their application as a versatile and sensitive imaging probe, with intense colour, enhanced fluorescence and strong MS ion intensity for biological tissue imaging.
Autor:
Kwan-Ming Ng, Samuel Kin-Man Lai, Yu-Hong Cheng, Wei Huang, Ho-Wai Tang, Jun Yang, Ziyong Chen, Yang Su
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32(3)
The characterization of photoexcited electrons on the surface of nanomaterial remains challenging. Herein, laser excitation mass spectrometry combined with a chemical thermometer and electron acceptor has been developed to characterize the energetics
Publikováno v:
ACS Applied Materials & Interfaces. 8:29668-29675
Metal alloy nanoparticles (NPs) offer a new combination of unique physicochemical properties based on their pure counterparts, which can facilitate the development of novel analytical methods. Here, we demonstrated that Ag-Au alloy NPs could be utili
Publikováno v:
The Journal of Physical Chemistry C. 120:20368-20377
The phase transition of surface-assisted laser desorption/ionization (SALDI) substrates has been identified as a driving process for ion desorption in many previous SALDI fundamental studies. Here, the effects of various phase transition stages, incl
Publikováno v:
The Journal of Physical Chemistry C. 119:23708-23720
Fundamental factors governing the ion-desorption efficiency and extent of internal-energy transfer to a chemical thermometer, benzylpyridinium ion ([BP]+), generated in the surface-assisted laser desorption/ionization (SALDI) process, were systematic
Publikováno v:
ACS Omega
ACS Omega, Vol 2, Iss 9, Pp 6031-6038 (2017)
ACS Omega, Vol 2, Iss 9, Pp 6031-6038 (2017)
A chemical printing method based on gold nanoparticle (AuNP)-assisted laser ablation has been developed. By rastering a thin layer of AuNPs coated on a rat kidney tissue section with a UV laser, biomolecules are extracted and immediately transferred/
Publikováno v:
Journal of the American Society for Mass Spectrometry. 25:1515-1520
A new ambient ionization method allowing the direct chemical analysis of living human body by mass spectrometry (MS) was developed. This MS method, namely Megavolt Electrostatic Ionization Mass Spectrometry, is based on electrostatic charging of a li
Publikováno v:
Rapid Communications in Mass Spectrometry. 27:713-721
RATIONALE Despite various porous materials having been widely adopted as spraying tips for direct sample analysis using electrospray ionization mass spectrometry (ESI-MS), the effect of surface property and porosity of spraying tip materials on their
Publikováno v:
Analytica chimica acta. 919
With a coating of gold nanoparticles (AuNPs), over-the-counter (OTC) drugs and Chinese herbal medicine granules in KBr pellets could be analyzed by Fourier Transform Infra-red (FT-IR) spectroscopy and Surface-assisted Laser Desorption/Ionization mass