Results 121 to 130 of about 7,078,356 (296)

Correcting field determination of elemental contents in soils via portable X-ray fluorescence spectrometry

Ciência e Agrotecnologia
Portable X-ray fluorescence (pXRF) spectrometry has been useful worldwide for determining soil elemental content under both field and laboratory conditions.
Thaís Santos Branco Dijair, Fernanda Magno Silva, Anita Fernanda dos Santos Teixeira, Sérgio Henrique Godinho Silva, Luiz Roberto Guimarães Guilherme, Nilton Curi   +5 more
doaj   +1 more source

A comparison of X‐ray fluorescence spectrometry and chemical methods for determining sulphur in plant material

, 1973
A rapid method for determining total S in plants by X‐ray fluorescence spectro‐metric analysis of ground pelletised plant material is compared with chemical methods using titrimetric, flame photometric and turbidimetric methods of sulphate determination.
Brown, G., John Bolton, Pruden, G., George Brown, Bolton, J., Williams, C., Carolyn Williams, Gordon Pruden   +7 more
core   +1 more source

Engineered Nanoplatforms Targeting Activated Hepatic Stellate Cells for Liver Fibrosis Therapy via TGF‐β Axis Inhibition and Ferroptosis Induction

Advanced Healthcare Materials, EarlyView.
FeS‐VA@lanifibranor (FVL), an activated hepatic stellate cell (aHSC)‐targeted nanoplatform comprising vitamin A‐functionalized two‐dimensional iron sulfide nanosheets and lanifibranor, is engineered for precision therapy of liver fibrosis. FVL suppresses the TGF‐β signaling pathway by inhibiting SMAD2/3 phosphorylation and induces ferroptosis in aHSCs,
Yinuo Yang, Mengyao Mu, Ke Ren, Hui Liu, Pengju Ma, Yingqi Wang, Mengmeng Zhang, Xueli Xu, Wenzhe Li, Wenshuang Gao, Xiao Sun, Qiang Zhu   +11 more
wiley   +1 more source

ASSESSING THE ENVIRONMENT WITH X-RAY FLUORESCENCE

, 2011
In this paper we will introduce the general benefits of X-Ray Fluorescence spectrometry (XRF)for assessing the condition of the outer environment, especially where ambient aerosol particlesare causing environmental disturbances.
Boman, Johan,, Wagner, Annemarie,, Pettersson, Jan B. C.,, Gatari, Michael J, Molnár, Peter,   +4 more
core   +1 more source

Optical Detection of Cellular Signals at Material Interfaces

Advanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren, Jitong Ren, Zixin Zhang, Koney Eungkon Kim, Francis L. Hong, Yuecheng Peter Zhou   +5 more
wiley   +1 more source

Exposure assessment of nanotitanium oxide powder handling using real-time size-selective particle number concentration measurements and X-ray fluorescence spectrometry -The possibility of exposure to nonagglomerated nanomaterials during the handling of nanomaterial fine powders. [PDF]

Ind Health, 2022
Takaya M, Yamada M, Kobayashi K, Higashikubo I, Hagiwara M, Ono-Ogasawara M.   +5 more
europepmc   +1 more source

An Engineered Biomimetic Nanoreactor With Cascade Functions for Targeted and Combinatorial Therapy of Ischemic Stroke

Advanced Healthcare Materials, EarlyView.
Preparation of RVG‐modified erythrocyte membrane‐coated HMPB nanocarriers loaded with L‐arginine and NBP (RM@HPAN) and its neuroprotective mechanism. After intravenous injection, RM@HPAN achieves prolonged circulation, RVG‐29‐mediated BBB penetration, and ischemic accumulation.
Shaofa Li, Ying Wu, Huimin Wei, Jinyong Teng, Zaizhi Yang, Jufang Chen, Bao Liao, Xiaoqin Huang, Lanqing Meng, Tong Li   +9 more
wiley   +1 more source

Fused Pellet-Determination of 16 Elements in Copper Ores by X-ray Fluorescence Spectrometry

Yankuang ceshi, 2014
Accuracy and precision of the analytical results for major and minor components in copper ores by the X-ray Fluorescence Spectrometry (XRF) fusion method can be seriously affected by the type of copper ore being analysed and the complex components it ...
LUO Xue-hui, SU Jian-zhi, LU Qing, YANG Li-qin, WANG Lan   +4 more
doaj   +2 more sources

Elemental concentration via portable x-ray fluorescence spectrometry: Assessing the impact of water content

Ciência e Agrotecnologia
Portable X-ray fluorescence (pXRF) analysis can be considered one of the main recent advances for chemical characterization of earth materials. The water content of the samples can affect the pXRF performance.
Monna Lysa Teixeira Santana, Geila Santos Carvalho, Luiz Roberto Guimarães Guilherme, Nilton Curi, Bruno Teixeira Ribeiro   +4 more
doaj   +1 more source

X-ray Fluorescence Spectrometry for Environmental Applications

, 2020
Heavy metal contamination in environmental applications is particularly important because of its potential impact on associated ecosystems and human health. At present, monitoring of heavy metals is usually done by taking and preparing samples for off-line laboratory measurements. X-ray fluorescence (XRF) analysis is a powerful and widely used tool for
openaire   +2 more sources