Results 41 to 50 of about 1,894,326 (313)

Determination of Antimony in Gold-Antimony Ore and Antimony Ore by Inductively Coupled Plasma-Atomic Emission Spectrometry with Four Acids Dissolution

Yankuang ceshi, 2013
There are reliable chemical analysis methods for determining high, low and trace amounts of antimony in gold-antimony ore and antimony ore. However, the volumetric method for low content antimony measurements has a low analysis efficiency and involves a ...
WEI Yi, DOU Xiang-li, JU Li-pei, ZHANG Wang-qiang, ZHAO Wei-hua, YU Zhi-feng, MAO Zheng-cai   +6 more
doaj  

Effect of Hydrostatic Pressure on the Fluorescence of Tryptophan in the Presence of Metal Ions Running title: Effect of pressure on the tryptophan

Brazilian Archives of Biology and Technology, 2018
The effect of pressure on the fluorescence of tryptophan in the presence of metal ions was studied by fluorescence spectrometry. It was found that at 60 MPa, the fluorescence intensity of M/Trp mixtures (M represented metal ions) increased compared to ...
Chengman Bao, Xinhui Tang, Shuming Ye
doaj   +1 more source

Autofluorescence as a noninvasive biomarker of senescence and advanced glycation end products in Caenorhabditis elegans

npj Aging and Mechanisms of Disease, 2021
To assess the utility of autofluorescence as a noninvasive biomarker of senescence in Caenorhabditis elegans, we measured the autofluorescence of individual nematodes using spectrofluorometry. The fluorescence of each worm increased with age.
Tomomi Komura, Mikihiro Yamanaka, Kohji Nishimura, Keita Hara, Yoshikazu Nishikawa   +4 more
doaj   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

The Characteristics of Luminescence from High-Temperature- and High-Pressure-Treated Diamonds

Applied Sciences
High-temperature and high-pressure (HTHP)-treated diamonds have attracted attention all over the world due to their vivid colors. In order to explore a new method for the rapid and non-destructive identification of HTHP-treated diamonds, in this paper ...
Mu-Lin Huang, Xue-Mei He, Ming-Yue Du, Peng-Fei Jiang, Xue-Feng Wang   +4 more
doaj   +1 more source

Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence

Geophysical Research Letters, 2019
Chlorophyll fluorescence measurements provide valuable information on phytoplankton abundance and physiology. High spectral resolution measurements from the aircraft‐mounted Portable Remote Imaging SpectroMeter (PRISM) allow for a more robust and ...
Z. K. Erickson, C. Frankenberg, D. R. Thompson, A. F. Thompson, M. Gierach   +4 more
doaj   +1 more source

Application Skills on Determination of Geological Sample by X-ray Fluorescence Spectrometry

Yankuang ceshi, 2015
X-ray Fluorescence Spectrometry (XRF) has such advantages as simple sample preparation, green environmental protection and the simultaneous determination of multiple elements and is widely used in the exploration geochemistry analysis field.
CHEN Jing, GAO Zhi-jun, CHEN Chong-ke, LIU Yan-xia, ZHANG Ming-wei   +4 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source