Results 31 to 40 of about 144,422 (148)

Advances in MALDI Mass Spectrometry Imaging Single Cell and Tissues

Frontiers in Chemistry, 2022
Compared with conventional optical microscopy techniques, mass spectrometry imaging (MSI) or imaging mass spectrometry (IMS) is a powerful, label-free analytical technique, which can sensitively and simultaneously detect, quantify, and map hundreds of ...
Xiaoping Zhu, Xiaoping Zhu, Tianyi Xu, Tianyi Xu, Chen Peng, Shihua Wu, Shihua Wu   +6 more
doaj   +1 more source

Spatiotemporal lipid profiling during early embryo development of Xenopus laevis using dynamic ToF-SIMS imaging

Journal of Lipid Research, 2014
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging has been used for the direct analysis of single intact Xenopus laevis embryo surfaces, locating multiple lipids during fertilization and the early embryo development stages with ...
Hua Tian, John S. Fletcher, Raphael Thuret, Alex Henderson, Nancy Papalopulu, John C. Vickerman, Nicholas P. Lockyer   +6 more
doaj   +1 more source

Recent developments in ionization techniques for single-cell mass spectrometry

Frontiers in Chemistry, 2023
The variation among individual cells plays a significant role in many biological functions. Single-cell analysis is advantageous for gaining insight into intricate biochemical mechanisms rarely accessible when studying tissues as a whole.
Qingli Zeng, Qingli Zeng, Meng-Chan Xia, Xinchi Yin, Simin Cheng, Zhichao Xue, Siyuan Tan, Xiaoyun Gong, Zihong Ye   +8 more
doaj   +1 more source

Biological tissue sample preparation for time-of-flight secondary ion mass spectrometry (ToF–SIMS) imaging

Nano Convergence, 2018
Time-of-flight secondary ion mass spectrometry (ToF–SIMS) imaging is an analytical technique rapidly expanding in use in biological studies. This technique is based on high spatial resolution (50–100 nm), high surface sensitivity (1–2 nm top-layer), and ...
Sohee Yoon, Tae Geol Lee
doaj   +1 more source

Nano-Scale Secondary Ion Mass Spectrometry: A Paradigm Shift in Soil Science

Journal of Spectroscopy
Soils exhibit structural heterogeneity across diverse spatio-temporal scales, yielding myriad of microhabitats, highlighting the need for a nuanced understanding of the intricate interactions within the soil matrix.
Yasir Hanif Mir, Anzhen Qin, Shakeel Mir, Shafeeq Ur Rahman, Mehnaza Mushtaq, Mumtaz A. Ganie, M. H. Chesti, Javid A. Bhat, Zahoor A. Baba, M. Auyoub Bhat, Inayat M. Khan, Rehana Rasool, Aanisa Manzoor Shah, Shazia Sadiq, Syed Mohammed Basheeruddin Asdaq, Mohammad Javed Ansari, Ghulam Yasin   +16 more
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Lipid mapping in human dystrophic muscle by cluster-time-of-flight secondary ion mass spectrometry imaging

Journal of Lipid Research, 2008
Human striated muscle samples, from male control and Duchenne muscular dystrophy-affected children, were subjected to cluster-time-of-flight secondary ion mass spectrometry (cluster-ToF-SIMS) imaging using a 25 keV Bi3+ liquid metal ion gun under static ...
Nora Tahallah, Alain Brunelle, Sabine De La Porte, Olivier Laprévote   +3 more
doaj   +1 more source

Linking biogenic hydrocarbons to biogenic aerosol in the Borneo rainforest [PDF]

Atmospheric Chemistry and Physics, 2013
Emissions of biogenic volatile organic compounds are though to contribute significantly to secondary organic aerosol formation in the tropics, but understanding these transformation processes has proved difficult, due to the complexity of the chemistry ...
J. F. Hamilton, M. R. Alfarra, N. Robinson, M. W. Ward, A. C. Lewis, G. B. McFiggans, H. Coe, J. D. Allan   +7 more
doaj   +1 more source

Study on the Analysis of Uranium-in Rat Hair by Secondary Ion Mass Spectrometry

Journal of Isotopes, 2021
Hair samples, as a non-invasive biological material, it is gradually gaining attention in the fields of nuclear forensics, environmental monitoring, occupational exposure detection, and medicine due to its certain accumulation effect on human trace ...
HU Ruixuan;SHEN Yan;LI Lili;HUANG Shenghui;ZHAO Lifei;ZHAO Yonggang
doaj  

Deuterium concentration depth profiling in sputter-deposited tungsten coated F82H using secondary ion mass spectrometry

Nuclear Materials and Energy, 2019
Deuterium plasma-driven permeation (PDP) through reduced activation ferritic steel alloy F82H with and without sputter-deposited tungsten (SP-W) coatings has been conducted using a laboratory-scale steady-state plasma facility.
Y. Xu, Y. Hirooka, L.M. Luo, Y.C. Wu
doaj   +1 more source

Study on the Mass Spectrometry Cleavage Pattern of Quinolone Antibiotics

ChemistryOpen
Rationale: Quinolone antibiotics are extensively used clinically for human treatment and in agriculture. However, improper and excessive use can lead to the persistence of quinolone residues in animal tissues, potentially accumulating in the human body ...
Susu Fan, Hui Lu, Chunjian Li, Meng Cai, Jian Shi   +4 more
doaj   +1 more source