Academic literature on the topic 'Persistant luminescence'

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Journal articles on the topic "Persistant luminescence"

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Fritzen, Douglas L., Luidgi Giordano, Lucas C. V. Rodrigues, and Jorge H. S. K. Monteiro. "Opportunities for Persistent Luminescent Nanoparticles in Luminescence Imaging of Biological Systems and Photodynamic Therapy." Nanomaterials 10, no. 10 (2020): 2015. http://dx.doi.org/10.3390/nano10102015.

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The use of luminescence in biological systems allows us to diagnose diseases and understand cellular processes. Persistent luminescent materials have emerged as an attractive system for application in luminescence imaging of biological systems; the afterglow emission grants background-free luminescence imaging, there is no need for continuous excitation to avoid tissue and cell damage due to the continuous light exposure, and they also circumvent the depth penetration issue caused by excitation in the UV-Vis. This review aims to provide a background in luminescence imaging of biological system
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Wang, Zhi Long, Hui Chen, Ya Li Zhao, Bin Ya Yang, and Fei Zhou. "The Study on the Defect States and Persistent Luminescent Mechanism of MgSiO3: Mn2+, Dy3+ Phosphor." Advanced Materials Research 391-392 (December 2011): 1041–46. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.1041.

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In order to clarify the role of Dy3+on persistent luminescence properties of MgSiO3:Mn2+, Dy3+and explain the persistent luminescent mechanism, the positron annihilation technique was used to study the defect states of MgSiO3:Mn2+, Dy3+. It was revealed that the structure of deeper traps were not normally respected Mg2+vacancies and oxygen vacancies but the associated defect V"Mg-2Dy•Mg which emerged by Dy3+doping in MgSiO3:Mn2+. This associated defect V"Mg-2Dy•Mg resulted in the excellent persistent luminescence in MgSiO3:Mn2+, Dy3+phosphor and a possible persistent luminescent mechanism for
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Chiatti, Chiara, Claudia Fabiani, and Anna Laura Pisello. "Long Persistent Luminescence: A Road Map Toward Promising Future Developments in Energy and Environmental Science." Annual Review of Materials Research 51, no. 1 (2021): 409–33. http://dx.doi.org/10.1146/annurev-matsci-091520-011838.

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In recent decades, research on persistent luminescence has led to new phosphors and promising performances. Efforts to improve the quality of phosphors’ afterglow have paved the way toward innovative solutions for many disciplines. However, there are few examples of the implementation of luminescent materials. In addition to providing a general background on persistent luminescence, the techniques used for its analysis, and its multidisciplinary potential in energy and environmental science, this article aims to explain the existing gap between the physical-chemical approach and the effective
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Gartia, R. K., and Ngangbam Chandrasekhar. "Thermoluminescence of Persistent Luminescent Materials." Defect and Diffusion Forum 357 (July 2014): 171–91. http://dx.doi.org/10.4028/www.scientific.net/ddf.357.171.

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Persistent luminescence as well as Thermoluminescence (TL), both the phenomena are nothing but long-period afterglow having lifetime (τ) in the broad range of few minutes to few days. Therefore, it is nothing but natural that all persistent luminescent materials exhibit excellent thermoluminescence. This review critically discusses the data available in literature and provides a commentary on the trap-spectroscopy of persistent luminescent materials as a whole with special emphasis to commercial materials that have found wide applications in safety signage, road sign display as well as sensors
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Cerro, Paloma Roldán Del, Henriikka Teittinen, Isabella Norrbo, Mika Lastusaari, Jonathan Massera, and Laeticia Petit. "Novel borosilicate bioactive scaffolds with persistent luminescence." Biomedical Glasses 6, no. 1 (2020): 1–9. http://dx.doi.org/10.1515/bglass-2020-0001.

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AbstractPersistent luminescent amorphous borosilicate scaffolds were successfully prepared, for the first time, with a porosity of >70% using the burn-off technique. The persistent luminescence was obtained by adding the SrAl2O4:Eu2+,Dy3+ microparticles: i) in the glass melt or ii) in the glass crushed into powder prior to the sintering. The scaffolds prepared by adding the microparticles in the glass melt exhibits lower persistent luminescence and a slower reaction rate in simulated body fluid than the scaffolds prepared by adding the microparticles in the glass powder due to the release o
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Qiang, ZHOU, Wang Jian-chao, and Li Zhi-shen. "Wind Driving Triboluminescence Technology: A Physical Agriculture Method of Pest Insects Control without Pesticides†." E3S Web of Conferences 53 (2018): 04013. http://dx.doi.org/10.1051/e3sconf/20185304013.

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Some of triboluminescence materials have the property of shortwave light emission, which is possible to make them being used as the light resource of pest-insects phototaxis trapping. The inorganic composite phosphors Sr2MgSi2O7:Ce and organic composite phosphor Mn-PMBB are tested to have the violet-blue spectrum and green spectrum glowing respectively; Their vertical axis wind driving triboluminescence unit is designed and fabricated on the basis of squirrel cage structure friction pair with multi-glass bars against on the cylindrical phosphor. The persistant wind driving tribo-luminescence i
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Tuerdi, Ailijiang, and Abdukader Abdukayum. "Dual-functional persistent luminescent nanoparticles with enhanced persistent luminescence and photocatalytic activity." RSC Advances 9, no. 31 (2019): 17653–57. http://dx.doi.org/10.1039/c9ra02235j.

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Lastusaari, Mika, Taneli Laamanen, Marja Malkamäki, et al. "The Bologna Stone: history's first persistent luminescent material." European Journal of Mineralogy 24, no. 5 (2012): 885–90. http://dx.doi.org/10.1127/0935-1221/2012/0024-2224.

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Xu, Yue, Cuiwei Xue, Shengnan Xue, and Qi Zhu. "Improvement of Near-Infrared Persistent Luminescence in Lithium Substituted MgGa2O4:Cr3+ Nanocrystals." Journal of Nanoelectronics and Optoelectronics 15, no. 5 (2020): 630–36. http://dx.doi.org/10.1166/jno.2020.2771.

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Near infrared (NIR) persistent phosphors can exhibit NIR emission for a long period of time after the remove of irradiation, and they have attracted much attention since the demonstration that NIR persistent luminescent nano-sized particles can be used for in vivo imaging. Here, a new NIR persistent luminescence material of lithium substituted MgGa2O4:Cr3+ (termed as MGO:Cr3+, Li+) has been successfully synthesized by sol–gel processing. The MGO:Cr3+, Li+ mainly consists of ∼40–100 nm nanocrystals, which are of single crystalline with excellent crystallinity. Li+ ions occupying the tetrahedral
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Zhang Cong, 张聪, 杨迪 Yang Di, 邵康 Shao Kang та 潘再法 Pan Zaifa. "热释光谱用于长余辉材料陷阱分布分析的研究进展". Laser & Optoelectronics Progress 58, № 15 (2021): 1516006. http://dx.doi.org/10.3788/lop202158.1516006.

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Dissertations / Theses on the topic "Persistant luminescence"

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Richard, Sophie. "Elaboration de nanoplateformes bimodales pour l’imagerie moléculaire des cancers." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCD099.

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Le diagnostic précoce des cancers et le développement de la médecine personnalisée constituent des défis majeurs à l’heure actuelle. Ces enjeux exigent le développement de nouveaux outils capables de cibler des biomarqueurs pertinents afin de permettre un diagnostic à l’aide des techniques d’imagerie. L’objectif de ces travaux est d’élaborer de nouveaux agents de contraste innovants pour l’imagerie moléculaire des cancers. Pour ce faire, des nanoplateformes d’oxyde de fer fonctionnalisées avec de l’acide caféique et couplées à un anticorps marqué par un fluorophore ont été élaborées. Ces nanop
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Teston, Eliott. "Nanohybrides superparamagnétiques à luminescence persistante : conception et application au marquage cellulaire pour la vectorisation magnétique in vivo." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB025/document.

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La thérapie cellulaire consiste à utiliser des cellules comme médicament injectable dans le but de favoriser la réparation d'un tissu ou d'un organe. Certaines cellules possèdent la propriété de stimuler la formation de nouveaux vaisseaux sanguins. Elles présentent un intérêt pour le développement d'un traitement des ischémies des membres inférieurs ou du myocarde. Déterminer le devenir de ces cellules après injection in vivo est important pour comprendre les mécanismes responsables de l'efficacité d'un tel traitement. Cependant, il est difficile à observer et très peu décrit dans la littératu
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Machado, Ian Pompermayer. "Luminescência persistente no visível e infravermelho em oxissulfetos de terras raras preparados por síntese no estado sólido assistida por micro-ondas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-17082016-081843/.

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A maioria dos materiais que apresentam o fenômeno da luminescência persistente possuem o íon Eu2+ como ativador, exibindo emissões sintonizáveis entre o azul e o verde. Entretanto, materiais com luminescência persistente na região do vermelho e infravermelho próximo (Near Infrared - NIR) são ainda pouco reportados na literatura. Portanto, foram preparados neste trabalho os materiais TR2O2S.Ln3+ e TR2O2S.Ln3+,Mg2+,Ti3+/IV (TR3+: La, Gd e Y; Ln3+: Eu e Yb) pelo método de síntese no estado sólido assistido por micro-ondas. Os materiais foram caracterizados pelas técnicas de Difração de raios X (D
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Pellerin, Morgane. "Elaboration de nanoparticules à luminescence persistante pour l'imagerie optique dans le domaine du visible et du proche infrarouge." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066537/document.

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Cette thèse porte sur l'élaboration de nanoparticules (NPs) à luminescence persistante pour l'imagerie optique dans le domaine du rouge profond et du proche infrarouge. Leur utilisation présente un avantage indéniable, l'étape d'irradiation pour obtenir l'état excité pouvant être réalisée avant injection, il est possible d'éviter tout stress des tissus et autres phénomènes d'autofluorescence. Dans les compositions chimiques étudiées, elles sont par ailleurs ré-excitables in vivo. Nous présentons une synthèse originale pour l'élaboration de " petites " NPs de ZnGa2O4 :Cr3+ par voie hydrothermal
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Le, Masne de Chermont Quentin. "Nanoparticules à luminescence persistante pour l'imagerie optique in vivo." Paris 6, 2007. https://pastel.archives-ouvertes.fr/tel-00294982.

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L’objectif de cette thèse a été de développer une nouvelle classe de sondes optiques ayant des propriétés de luminescence persistante pour l’imagerie du petit animal. La luminescence persistante, souvent dénommée phosphorescence, est la propriété que possèdent certains matériaux de continuer à émettre de la lumière après la fin de l’excitation. Le développement rapide de nombreuses techniques d’imagerie durant les dernières décennies (IRM, écho-doppler, scanner, PET…) répond à un besoin croissant des biologistes et des médecins. De la simplification des travaux expérimentaux à une détection pr
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Ramírez, Garcia Gonzalo. "Physicochemical characterization and biocompatibility studies of persistent luminescence nanoparticles for preclinical diagnosis applications." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066370/document.

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Les nanoparticules (NPs) à luminescence persistante de gallate de zinc dopée chrome (ZnGa1.995Cr0.005 O4) sont des matériaux innovants avec des propriétés optiques particulières qui permettent leur utilisation pour l'imagerie optique in vivo. Leur caractérisation a été effectuée par une méthode émergente dans ce domaine, l'électrophorèse capillaire. Les résultats ont démontré le potentiel de cette méthode pour garantir le contrôle et la qualité des NPs. Un ensemble général des tests de toxicité a été réalisé in vitro et in vivo après administration aiguë, à court et à long terme des ZnGa1.995C
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Castaing, Victor. "Recherche de nouvelles couleurs et morphologies dans les matériaux à luminescence persistante." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEC030.

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La luminescence persistante est la propriété qu’ont certains matériaux de stocker une énergie lumineuse incidente (généralement UV) sous forme d’électrons et (ou) de trous électroniques piégés par des défauts, et de restituer cette énergie sous forme de lumière visible ou proche infra-rouge pendant plusieurs heures. Le mécanisme à l’origine de ce phénomène est cependant toujours mal compris. Le projet de cette thèse a pour objectif d’élucider ce mécanisme en étudiant différents types de matériaux à luminescence persistante et de profiter de cette propriété dans un nouveau champ d’activités : l
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Pedroso, Cássio Cardoso Santos. "Investigação da luminescência persistente dos materiais Lu2O3:TR3+,M (TR,M: Pr,HfIV; Eu, Ca2+ ou Tb,Ca2+) preparados pelo método de estado-sólido assistido por micro-ondas." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-21062017-092436/.

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A luminescência persistente é um fenômeno em que o material emite radiação de segundos a várias horas após cessada a irradiação (luz, radiação UV, feixe de elétrons, etc.). No entanto, os mecanismos que geram o fenômeno da luminescência persistente ainda não são totalmente estabelecidos. Neste trabalho os materiais Lu2O3:TR3+,M (TR,M: Pr,HfIV; Eu, Ca2+ ou Tb,Ca2+) foram preparados pelo método de estado-sólido assistido por micro-ondas (MASS) e comparados com aqueles sintetizados pelo método cerâmico. As vantagens do método MASS incluem curto tempo de processamento, aquecimento dielétrico selet
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Maldiney, Thomas. "Nanocristaux à luminescence persistante : nouveaux concepts pour l'imagerie in vivo." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://pastel.archives-ouvertes.fr/pastel-00831281.

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Les nanocristaux à luminescence persistante ont récemment été introduits dans le domaine de l'imagerie optique du petit animal comme alternative originale aux systèmes photoluminescents couramment utilisés pour la détection photonique in vivo. Comparables à des condensateurs optiques, ces matériaux présentent l'avantage de pouvoir être excités avant l'injection au petit animal, puis d'émettre un signal de luminescence dans la fenêtre de transparence des tissus, sans excitation continue de la sonde, pendant plusieurs dizaines de minutes. Cette technique propose une solution efficace au problème
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Lecointre, Aurélie. "Mécanisme de luminescence persistante de nouveaux types de marqueurs pour l'imagerie optique in vivo." Paris 6, 2010. http://www.theses.fr/2010PA066469.

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Ce travail concerne l’étude de matériaux à luminescence persistante rouge pour la réalisation de marqueurs utilisables pour un nouveau type d’imagerie optique in vivo. Parmi les matériaux à luminescence persistante, peu nombreux sont ceux qui émettent dans le rouge. L’originalité de ce travail est donc d’étudier de nouveaux matériaux présentant une émission rouge intense et persistante sur plusieurs dizaines de minutes. Dans ce cadre, une expérience de thermoluminescence allant de 10 K à 750 K, résolue spectralement, a été montée. Le premier objectif était l’obtention d’une luminescence persis
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Book chapters on the topic "Persistant luminescence"

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Aitasalo, T., J. Hölsä, J. C. Krupa, M. Lastusaari, and J. Niittykoski. "Persistent Luminescence Materials." In Physics of Laser Crystals. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0031-4_3.

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Liu, Yingliang, and Bingfu Lei. "Persistent Luminescent Materials." In Phosphors, Up Conversion Nano Particles, Quantum Dots and Their Applications. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1590-8_6.

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Richard, Cyrille, Thomas Maldiney, Quentin le Masne de Chermont, et al. "Persistent Luminescence Nanoparticles for Bioimaging." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25547-2_4.

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Maldiney, Thomas, Daniel Scherman, and Cyrille Richard. "Persistent Luminescence Nanoparticles for Diagnostics and Imaging." In ACS Symposium Series. American Chemical Society, 2012. http://dx.doi.org/10.1021/bk-2012-1113.ch001.

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Viana, Bruno, Cyrille Richard, Victor Castaing, et al. "NIR-Persistent Luminescence Nanoparticles for Bioimaging, Principle and Perspectives." In Near Infrared-Emitting Nanoparticles for Biomedical Applications. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-32036-2_8.

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Chan, Wai-Lun, ZhenYu Liu, and Ka-Leung Wong. "Persistent Luminescence Nanomaterials for Biomedical Applications: A Quick Grasp of the Trend." In Phosphors, Up Conversion Nano Particles, Quantum Dots and Their Applications. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1590-8_11.

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"Crystal structure of the monoclinic Ba2MgSi2O7 persistent luminescence material." In Ninth European Powder Diffraction Conference. Oldenbourg Wissenschaftsverlag, 2006. http://dx.doi.org/10.1524/9783486992526-080.

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Conference papers on the topic "Persistant luminescence"

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Ruska, Rihards, Baiba Bērziņa, and Laima Trinklere. "AlN:Eu keramiku spektrālās īpašības un luminiscences mehānismi." In LU Studentu zinātniskā konference "Mundus et". LU Akadēmiskais apgāds, 2021. http://dx.doi.org/10.22364/lu.szk.2.rk.14.

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The current study was dedicated to exploring luminescence of AlN ceramics with europium admixture (AlN:Eu). Photoluminescence as well as its excitation spectra, taken at wide spectral intervals, at different temperatures and environments (vacuum and air), were used to study the optical properties of the material.AlN:Eu ceramics were dominated by the well-known red and green luminescence of Eu ions, around 530 nm and 600 nm, which could be excited by both visible and UV light. In ceramics with a higher Eu content, more intense luminosity of the bands associated with europium, especially around
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Castaing, V., M. Pellerin, A. D. Sontakke, et al. "Persistent luminescence in ZnGa2O4:Cr3+ transparent glass-ceramics." In SPIE OPTO, edited by Ferechteh H. Teherani, David C. Look, and David J. Rogers. SPIE, 2017. http://dx.doi.org/10.1117/12.2253854.

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Castaing, Victor, Charlotte Monteiro, Antonio Fernández-Carrión, Mathieu Allix, and Bruno Viana. "Persistent luminescence features in hexagonal Sr0.75Al1.5Si0.5O4:Eu2+ phosphor." In Optical Components and Materials XVII, edited by Michel J. Digonnet and Shibin Jiang. SPIE, 2020. http://dx.doi.org/10.1117/12.2548120.

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Viana, B. "Persistent Luminescence Materials at Various Sizes and their Applications." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8872382.

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Lecuyer, T., E. Teston, T. Maldiney, D. Scherman, and C. Richard. "Physico-chemical characterizations of Cr doped persistent luminescence nanoparticles." In SPIE BiOS, edited by Wolfgang J. Parak, Marek Osinski, and Xing-Jie Liang. SPIE, 2016. http://dx.doi.org/10.1117/12.2207477.

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Sharma, S. K., D. Gourier, B. Viana, et al. "Persistent luminescence in nanophosphors for long termin-vivobio-imaging." In SPIE BiOS, edited by Alexander N. Cartwright and Dan V. Nicolau. SPIE, 2015. http://dx.doi.org/10.1117/12.2075585.

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Xu, Jian, Daisuke Murata, Jumpei Ueda та Setsuhisa Tanabe. "1.5μm persistent luminescence of Er3+ in Gd3Al5-xGaxO12 (GAGG) garnets via persistent energy transfer". У Optical Components and Materials XVI, редактори Michel J. Digonnet та Shibin Jiang. SPIE, 2019. http://dx.doi.org/10.1117/12.2505759.

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Arellano, Abril, Ismael Martinez, Haggeo Desirena, Ivan Moreno, and Elder De la Rosa. "Persistent luminescence of Eu2+ doped glass ceramic for AC LED." In Latin America Optics and Photonics Conference. OSA, 2016. http://dx.doi.org/10.1364/laop.2016.ltu4a.46.

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Sharma, S. K., A. Bessiere, D. Gourier, et al. "Persistent luminescence in ZnGa2O4:Cr: an outstanding biomarker forin-vivoimaging." In SPIE OPTO, edited by Michel J. F. Digonnet and Shibin Jiang. SPIE, 2014. http://dx.doi.org/10.1117/12.2041838.

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Rosticher, C., C. Chanéac, B. Viana, M. A. Fortin, J. Lagueux, and L. Faucher. "Red persistent luminescence and magnetic properties of nanomaterials for multimodal imaging." In SPIE OPTO, edited by Ferechteh H. Teherani, David C. Look, and David J. Rogers. SPIE, 2015. http://dx.doi.org/10.1117/12.2087319.

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