Results 41 to 50 of about 17,007 (304)

Influence of 1.25 MeV gamma rays on optical and luminescent features of Er3+ doped zinc bismuth borate glasses

Results in Physics, 2019
Glasses based on 10ZnO-5Na2CO3-10Bi2O3-(75-x)B2O3-xEr2O3 with x = (0, 0.1, 0.3, 0.5, 0.7, 1.0) mol%, were synthesized by melt quenching technique and characterized through optical and luminescent features, before and after irradiating them with high ...
Vinod Hegde, Nimitha Prabhu, Akshatha Wagh, M.I. Sayyed, O. Agar, Sudha D. Kamath   +5 more
doaj   +1 more source

Interplay of defect levels and rare earth emission centers in multimode luminescent phosphors

Nature Communications, 2022
Information encryption technology calls for versatile multi-mode luminescent materials. Here, the authors develop phosphors with five integrated luminescence modes by exploiting the interplay of defect levels and rare-earth emission centers.
Xinquan Zhou, Lixin Ning, Jianwei Qiao, Yifei Zhao, Puxian Xiong, Zhiguo Xia   +5 more
doaj   +1 more source

Isotopic fingerprints of Pt-containing luminescence centers in highly enriched Si-28 [PDF]

, 2010
Recently we have shown that the reduction in the photoluminescence linewidth of many deep luminescence centers in highly enriched Si-28 results in well-resolved isotopic fingerprints.
Pohl, H -J, T. Sekiguchi, Yang, A, Abrosimov, N V, Thewalt, M L W, H.-J. Pohl, Saeedi, K, M. L. W. Thewalt, Kaliteevskii, A K, P. Becker, M. Steger, Henry, M O, A. K. Kaliteevskii, Godisov, O N, A. V. Gusev, K. Johnston, H. Riemann, M. F. Churbanov, E. Alves, O. N. Godisov, Alves, E, Gusev, A V, Wahl, U, Steger, M, K. Saeedi, Johnston, K, Churbanov, M F, U. Wahl, N. V. Abrosimov, Riemann, H, M. O. Henry, A. Yang, Sekiguchi, T, Becker, P   +33 more
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

The development of X-ray excited optical luminescence (XEOL) spectroscopic techniques for mineralogical and petrological applications [PDF]

, 2013
This thesis investigates the use of X-ray Excited Optical Luminescence (XEOL) and Time Resolved X-ray Excited Optical Luminescence (TR XEOL) within the Earth sciences.
Taylor, Richard Peter
core  

Cr3+ and Cr4+ luminescence in glass ceramic silica [PDF]

, 2008
This paper reports on the effect of glass ceramic silica matrix on [CrO4](4-) and Cr2O3 NIR and visible luminescence. Chromium-containing silica was obtained by precipitation from water-glass and chromium nitrate acid solution with thermal treatment at ...
Davolos, Marian Rosaly, de Souza, Dione F., Martines, Marco A. U. [UNESP], SOUZA, Dione F. de, Jafelicci, Miguel, Nunes, Luiz Antonio de Oliveira, JAFELICCI JR., Miguel, Davolos, Marian Rosaly [UNESP], DAVOLOS, Marian R., Jafelicci, Miguel [UNESP], Nunes, Luiz A. O., MARTINES, Marco A. U.   +11 more
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Detection of Luminescence Centers in Colloidal Cd\(_{0.3}\)Zn\(_{0.7}\)S Nanocrystals by Synchronous Luminescence Spectroscopy [PDF]

, 2020
With the advantages of selectivity, spectral resolution and reduction of interference on account of light scattering, synchronous luminescence spectroscopy (SLS) is successfully applied to analyze complex mixtures with overlapped emission and/or ...
Thanh, Nguyen Trong, Tuyen, Ho Van, Quang, Vu Xuan, Thang, Phi Van, Lieu, Nguyen Thi Thuy, Nghia, Nguyen Xuan   +5 more
core  

Nature of red luminescence in oxygen treated hydrothermally grown zinc oxide nanorods [PDF]

, 2015
© 2015 Published by Elsevier B.V. A strong broad red luminescence (RL) peak centered at 1.69 eV (FWHM=0.57 eV) at 15 K [1.78 eV (FWHM=0.69 eV) at 300 K] is formed in ZnO nanorods hydrothermally grown at low temperature following thermal annealing at 650 °
Nenstiel, C, Ton-That, C, Hoffmann, A, Axel Hoffmann, Christian Nenstiel, Cuong Ton-That, Soraya Pornsuwan, Phillips, MR, Anantachaisilp, S, Smith, SM, Siwaporn Meejoo Smith, Suranan Anantachaisilp, Matthew R. Phillips, Anthony R. Moon, Pornsuwan, S, Moon, AR   +15 more
core   +1 more source

E2A selectively regulates TGF‐β–induced apoptosis in KRAS‐mutant non‐small cell lung cancer

Molecular Oncology, EarlyView.
Ability to induce apoptosis by TGF‐β is frequently lost in advanced lung adenocarcinoma despite intact TGF‐β signaling. We identify E2A as a mutant KRAS–dependent mediator of resistance to TGF‐β–induced apoptosis. TGF‐β induces E2A via SMAD3 in mutant KRAS cells, and E2A silencing restores apoptosis and enhances radiation response in cell lines ...
Sergei Chuikov, Shiva Krishna Katkam, Zhefan Wang, Venkateshwar G. Keshamouni   +3 more
wiley   +1 more source