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Artículos de revistas sobre el tema "Upconverting nanomaterials"

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Publicado: 1 de junio de 2024
Última modificación: 31 de julio de 2025

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1

Shah, Shreyas, Jing-Jing Liu, Nicholas Pasquale, et al. "Hybrid upconversion nanomaterials for optogenetic neuronal control." Nanoscale 7, no. 40 (2015): 16571–77. http://dx.doi.org/10.1039/c5nr03411f.

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2

Chan, Emory M. "Combinatorial approaches for developing upconverting nanomaterials: high-throughput screening, modeling, and applications." Chemical Society Reviews 44, no. 6 (2015): 1653–79. http://dx.doi.org/10.1039/c4cs00205a.

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3

Gulzar, Arif, Jiating Xu, Piaoping Yang, Fei He, and Liangge Xu. "Upconversion processes: versatile biological applications and biosafety." Nanoscale 9, no. 34 (2017): 12248–82. http://dx.doi.org/10.1039/c7nr01836c.

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4

Zhang, Zhen, Xiao-Lian Zhang, and Bin Li. "Mesoporous Silica-Coated Upconverting Nanorods for Singlet Oxygen Generation: Synthesis and Performance." Materials 14, no. 13 (2021): 3660. http://dx.doi.org/10.3390/ma14133660.

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Photodynamic therapy (PDT) has been reported as a possible pathway for the treatment of tumors. The exploration for promising PDT systems thus attracts continuous research efforts. This work focused on an ordered core–shell structure encapsulated by mesoporous SiO2 with the upconverting emission property following a surfactant-assisted sol–gel technique. The mesoporous silica shell possessed a high surface area-to-volume ratio and uniform distribution in pore size, favoring photosensitizer (rose bengal) loading. Simultaneously, upconverting nanocrystals were synthesized and used as the core. A
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5

Hilderbrand, Scott A., Fangwei Shao, Christopher Salthouse, Umar Mahmood, and Ralph Weissleder. "Upconverting luminescent nanomaterials: application to in vivo bioimaging." Chemical Communications, no. 28 (2009): 4188. http://dx.doi.org/10.1039/b905927j.

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6

Li, Xiaomin, Fan Zhang, and Dongyuan Zhao. "Highly efficient lanthanide upconverting nanomaterials: Progresses and challenges." Nano Today 8, no. 6 (2013): 643–76. http://dx.doi.org/10.1016/j.nantod.2013.11.003.

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7

Ghazyani, Nahid, Mohammad Hossein Majles Ara, and Mohammad Raoufi. "Nonlinear photoresponse of NaYF4:Yb,Er@NaYF4 nanocrystals under green CW excitation: a comprehensive study." RSC Advances 10, no. 43 (2020): 25696–702. http://dx.doi.org/10.1039/d0ra01380c.

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NaYF<sub>4</sub>:Yb,Er@NaYF<sub>4</sub> is an efficient and well-known upconverting nanomaterials at 980 nm, also it has strong optical nonlinearity at 532 nm related to energy states of the Yb/Er system which is determined by a unique approach.
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8

Myers, Peter. "Claudia Altavilla (Ed): Upconverting Nanomaterials. Perspectives, Synthesis and Application." Chromatographia 80, no. 5 (2017): 833–34. http://dx.doi.org/10.1007/s10337-017-3278-2.

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9

Joshi, Tanmaya, Constantin Mamat, and Holger Stephan. "Contemporary Synthesis of Ultrasmall (sub‐10 nm) Upconverting Nanomaterials." ChemistryOpen 9, no. 6 (2020): 703–12. http://dx.doi.org/10.1002/open.202000073.

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10

S, Sreejaya T., Drisya Mottammal, and Deepthi N Rajendran. "Flowcytometric apoptotic studies on MCF-7 human breast cancer cells by the induction of Y2O3:Er3+ nanophosphor." Advances in Natural Sciences: Nanoscience and Nanotechnology 16, no. 3 (2025): 035001. https://doi.org/10.1088/2043-6262/addce1.

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Abstract Lanthanide doped upconverting nanomaterials have high luminescent efficiency and comparable cytotoxicity. Therefore, they are frequently employed in the biomedical imaging field. The upconverting nanomaterials are primarily utilized for imaging applications since their excitation occurs in the Near Infra-Red spectrum. Er3+ in different concentrations such as 0.01, 0.02 and 0.03 were doped into Yttrium oxide were prepared by sol citrate gel method. The samples were annealed for 2 h at 600 °C. The synthesized materials’ x-ray diffraction analyses revealed a cubic phase with crystallite
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11

Hyppänen, Iko, Jorma Hölsä, Jouko Kankare, Mika Lastusaari, and Laura Pihlgren. "Upconversion Properties of Nanocrystalline ZrO2:Yb3+, Er3+Phosphors." Journal of Nanomaterials 2007 (2007): 1–8. http://dx.doi.org/10.1155/2007/16391.

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Combustion and sol-gel methods were used to prepare the upconverting nanocrystallineZrO2:Yb3+,Er3+phosphors. The crystal structure was studied by X-ray powder diffraction and the crystallite sizes were estimated with the Scherrer formula. Impurities and nanomaterials' thermal degradation were analyzed with FT-IR spectroscopy and thermal analysis, respectively. Upconversion luminescence and luminescence decays were studied with IR-laser excitation at 977 nm. All nanomaterials possessed the cubicZrO2fluorite-type structure except for a small monoclinic impurity obtained with the sol-gel method.
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12

Tessaro, Leticia, Adriano Aquino, Paloma de Almeida Rodrigues, Nirav Joshi, Rafaela Gomes Ferrari, and Carlos Adam Conte-Junior. "Nucleic Acid-Based Nanobiosensor (NAB) Used for Salmonella Detection in Foods: A Systematic Review." Nanomaterials 12, no. 5 (2022): 821. http://dx.doi.org/10.3390/nano12050821.

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Salmonella bacteria is a foodborne pathogen found mainly in food products causing severe symptoms in the individual, such as diarrhea, fever, and abdominal cramps after consuming the infected food, which can be fatal in some severe cases. Rapid and selective methods to detect Salmonella bacteria can prevent outbreaks when ingesting contaminated food. Nanobiosensors are a highly sensitive, simple, faster, and lower cost method for the rapid detection of Salmonella, an alternative to conventional enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) techniques. This study
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13

Chhetri, Bijay P., Alokita Karmakar, and Anindya Ghosh. "Recent Advancements in Ln‐Ion‐Based Upconverting Nanomaterials and Their Biological Applications." Particle & Particle Systems Characterization 36, no. 8 (2019): 1900153. http://dx.doi.org/10.1002/ppsc.201900153.

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14

Xie, Liangxia, Yu Qin, and Hong-Yuan Chen. "Direct Fluorescent Measurement of Blood Potassium with Polymeric Optical Sensors Based on Upconverting Nanomaterials." Analytical Chemistry 85, no. 5 (2013): 2617–22. http://dx.doi.org/10.1021/ac303709w.

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15

Lee, Changhwan, and P. James Schuck. "Photodarkening, Photobrightening, and the Role of Color Centers in Emerging Applications of Lanthanide-Based Upconverting Nanomaterials." Annual Review of Physical Chemistry 74, no. 1 (2023): 415–38. http://dx.doi.org/10.1146/annurev-physchem-082720-032137.

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Upconverting nanoparticles (UCNPs) compose a class of luminescent materials that utilize the unique wavelength-converting properties of lanthanide (Ln) ions for light-harvesting applications, photonics technologies, and biological imaging and sensing experiments. Recent advances in UCNP design have shed light on the properties of local color centers, both intrinsic and controllably induced, within these materials and their potential influence on UCNP photophysics. In this review, we describe fundamental studies of color centers in Ln-based materials, including research into their origins and t
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16

Jones, Callum M. S., Adilet Zhakeyev, and Jose Marques-Hueso. "(Invited) Calibration of Upconverting Materials and Nanoprobes." ECS Meeting Abstracts MA2023-02, no. 63 (2023): 2990. http://dx.doi.org/10.1149/ma2023-02632990mtgabs.

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Upconversion has attracted much attention for the potential applications of nanomaterials and bulk materials. Upconversion nanoprobes and sensors rely on the non-linear emission of the reporters, which present a low efficiency due to their anti-Stokes nature. For these two reasons, the materials require accurate and contrastable efficiency measurements, typically by measuring the absolute upconversion quantum yield (UCQY). The methodology for such measurements will vary from traditional photoluminescence quantum yield techniques that have been applied for downshifting materials [1]. Effects li
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17

Shin, Kyujin, Yo Song, Yeongchang Goh, and Kang Lee. "Two-Dimensional and Three-Dimensional Single Particle Tracking of Upconverting Nanoparticles in Living Cells." International Journal of Molecular Sciences 20, no. 6 (2019): 1424. http://dx.doi.org/10.3390/ijms20061424.

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Lanthanide-doped upconversion nanoparticles (UCNPs) are inorganic nanomaterials in which the lanthanide cations embedded in the host matrix can convert incident near-infrared light to visible or ultraviolet light. These particles are often used for long-term and real-time imaging because they are extremely stable even when subjected to continuous irradiation for a long time. It is now possible to image their movement at the single particle level with a scale of a few nanometers and track their trajectories as a function of time with a scale of a few microseconds. Such UCNP-based single-particl
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18

Alonso-de Castro, Silvia, Emmanuel Ruggiero, Aitor Lekuona Fernández, et al. "Functionalizing NaGdF4:Yb,Er Upconverting Nanoparticles with Bone-Targeting Phosphonate Ligands: Imaging and In Vivo Biodistribution." Inorganics 7, no. 5 (2019): 60. http://dx.doi.org/10.3390/inorganics7050060.

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Lanthanide-doped upconverting nanoparticles (UCNPs) transform near infrared light (NIR) into higher-energy UV and visible light by multiphotonic processes. Owing to such unique feature, UCNPs have found application in optical imaging and have been investigated for the NIR light activation of prodrugs, including transition metal complexes of interest in photochemotherapy. Besides, UCNPs also function as magnetic resonance imaging (MRI) contrast agents and positron emission tomography (PET) probes when labelled with radionuclides such as 18F. In this contribution, we report on a new series of ph
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19

Hemmer, Eva. "(Invited) Lanthanide-Based Nanoparticles Via Rapid Microwave-Assisted Synthesis and Their Application from Biomedicine to Printing." ECS Meeting Abstracts MA2022-01, no. 20 (2022): 1097. http://dx.doi.org/10.1149/ma2022-01201097mtgabs.

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Based on their outstanding optical properties, lanthanide-based compounds have been suggested for a wide range of applications including the fields of biomedicine, optoelectronics, and solar energy conversion. For instance, the capability of lanthanide-based materials to emit visible and near-infrared (NIR) light under NIR excitation is highly sought after when aiming for biomedical applications. This is as NIR light penetrates deeper into biological tissue and is less phototoxic than UV light commonly used for optical bioprobes. Our favorite nanomaterials are lanthanide-based fluorides (MLnF4
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20

Kumar, Udit, Scott Hoos, Tamil Selvan Sakthivel, Balaashwin Babu, Christina Drake, and Sudipta Seal. "Real-time fog sensing employing roadside traffic cameras using lanthanide-doped upconverting NaYF4 nanomaterials as a contrast piece." Sensors and Actuators A: Physical 382 (February 2025): 116131. https://doi.org/10.1016/j.sna.2024.116131.

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21

Pilch-Wrobel, A., B. Czaban, D. Wawrzyńczyk, and A. Bednarkiewicz. "Quantum yield measurements of Yb,Ho co-doped upconverting nanomaterials: The impact of methods, reference materials and concentration." Journal of Luminescence 198 (June 2018): 482–87. http://dx.doi.org/10.1016/j.jlumin.2018.02.070.

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22

Maciejewska, Kamila, Artur Bednarkiewicz, Andries Meijerink, and Lukasz Marciniak. "Correlation between the Covalency and the Thermometric Properties of Yb3+/Er3+ Codoped Nanocrystalline Orthophosphates." Journal of Physical Chemistry C 125, no. 4 (2021): 2659–65. https://doi.org/10.1021/acs.jpcc.0c09532.

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Lanthanide-doped NaYF<sub>4</sub> nanoparticles are most frequently studied host materials for numerous biomedical applications. Although efficient upconversion can be obtained in fluoride nanomaterials and good homogeneity of size and morphology is achieved, they are not very predestined for extensive material optimization toward enhanced features and functions. Here, we study the impact of rare-earth metals RE = Y, Lu, La, and Gd ions within Yb<sup>3+</sup>/Er<sup>3+</sup> codoped nanocrystalline REPO<sub>4</sub> orthophosphates. The enhanced luminescent thermometry features were found to be
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23

López-Peña, Gabriel, Silvia Simón-Fuente, Dirk H. Ortgies, et al. "Eosin Y-Functionalized Upconverting Nanoparticles: Nanophotosensitizers and Deep Tissue Bioimaging Agents for Simultaneous Therapeutic and Diagnostic Applications." Cancers 15, no. 1 (2022): 102. http://dx.doi.org/10.3390/cancers15010102.

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Functionalized upconverting nanoparticles (UCNPs) are promising theragnostic nanomaterials for simultaneous therapeutic and diagnostic purposes. We present two types of non-toxic eosin Y (EY) nanoconjugates derived from UCNPs as novel nanophotosensitizers (nano-PS) and deep-tissue bioimaging agents employing light at 800 nm. This excitation wavelength ensures minimum cell damage, since the absorption of water is negligible, and increases tissue penetration, enhancing the specificity of the photodynamic treatment (PDT). These UCNPs are uniquely qualified to fulfil three important roles: as nano
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24

Ho, Tsung-Han, Chien-Hsin Yang, Zheng-En Jiang, Hung-Yin Lin, Yih-Fung Chen, and Tzong-Liu Wang. "NIR-Triggered Generation of Reactive Oxygen Species and Photodynamic Therapy Based on Mesoporous Silica-Coated LiYF4 Upconverting Nanoparticles." International Journal of Molecular Sciences 23, no. 15 (2022): 8757. http://dx.doi.org/10.3390/ijms23158757.

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To date, the increase in reactive oxygen species (ROS) production for effectual photodynamic therapy (PDT) treatment still remains challenging. In this study, a facile and effective approach is utilized to coat mesoporous silica (mSiO2) shell on the ligand-free upconversion nanoparticles (UCNPs) based on the LiYF4 host material. Two kinds of mesoporous silica-coated UCNPs (UCNP@mSiO2) that display green emission (doped with Ho3+) and red emission (doped with Er3+), respectively, were successfully synthesized and well characterized. Three photosensitizers (PSs), merocyanine 540 (MC 540), rose b
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25

Jethva, Palak, Munira Momin, Tabassum Khan, and Abdelwahab Omri. "Lanthanide-Doped Upconversion Luminescent Nanoparticles—Evolving Role in Bioimaging, Biosensing, and Drug Delivery." Materials 15, no. 7 (2022): 2374. http://dx.doi.org/10.3390/ma15072374.

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Upconverting luminescent nanoparticles (UCNPs) are “new generation fluorophores” with an evolving landscape of applications in diverse industries, especially life sciences and healthcare. The anti-Stokes emission accompanied by long luminescence lifetimes, multiple absorptions, emission bands, and good photostability, enables background-free and multiplexed detection in deep tissues for enhanced imaging contrast. Their properties such as high color purity, high resistance to photobleaching, less photodamage to biological samples, attractive physical and chemical stability, and low toxicity are
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26

Sadowska, Karolina, Paweł Awramiuk, Izabela Zgłobicka, Katarzyna Rećko, and Jacek Żmojda. "Quantum efficiency of europium doped LaPO4 phosphors for UV sensing applications." Photonics Letters of Poland 14, no. 2 (2022): 28. http://dx.doi.org/10.4302/plp.v14i2.1146.

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The radiation conversion phenomenon is used for UV sensing applications with rare earth doped phosphors. This paper presents the results of structural and optical measurements of undoped and europium doped LaPO4 phosphors. LaPO4 phosphors with 1% mol, 2% mol, and 5% mol of europium were fabricated by the co-precipitation method. The effect of Eu3+ concentrations on the luminescence characteristics under UV LED excitation was investigated. The maximum quantum efficiency of luminescence (c.a. 82%) was obtained in sampled doped with 5% of europium. Full Text: PDF ReferencesM. Runowski, "Nanotechn
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27

Yin, Meili, Zhenhua Li, Enguo Ju, et al. "Multifunctional upconverting nanoparticles for near-infrared triggered and synergistic antibacterial resistance therapy." Chem. Commun. 50, no. 72 (2014): 10488–90. http://dx.doi.org/10.1039/c4cc04584j.

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A novel nanomaterial with CuS nanoparticles decorated onto the surface of NaYF<sub>4</sub>:Mn/Yb/Er@photosensitizer doped SiO<sub>2</sub> was synthesized for synergistic multidrug-resistant bacteria therapy.
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28

Zhang, Wei, Yang Zang, Yanli Lu, Jinhui Han, Qingyun Xiong, and Jinping Xiong. "Photothermal Effect and Multi-Modality Imaging of Up-Conversion Nanomaterial Doped with Gold Nanoparticles." International Journal of Molecular Sciences 23, no. 3 (2022): 1382. http://dx.doi.org/10.3390/ijms23031382.

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Two key concerns exist in contemporary cancer chemotherapy in clinics: limited therapeutic efficiency and substantial side effects in patients. In recent years, researchers have been investigating revolutionary cancer treatment techniques and photo-thermal therapy (PTT) has been proposed by many scholars. A drug for photothermal cancer treatment was synthesized using the hydrothermal method, which has a high light-to-heat conversion efficiency. It may also be utilized as a clear multi-modality bioimaging platform for photoacoustic imaging (PAI), computed tomography (CT), and magnetic resonance
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29

Wang, Xinyu, Ruifeng Wang, Yuxin Jin, et al. "Two-mode upconversion color-tuning of Er:NaYbF4 nanocrystals and their high-efficiency photothermal conversion." Journal of Materials Chemistry C, 2025. https://doi.org/10.1039/d5tc01139f.

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Color-tunable upconverting luminescence of lanthanide nanomaterials is attractive in many application fields. To date, the available strategies towards real-time color-tuning are still limited. Herein, we reveal a relatively universal technique...
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30

Arnau del Valle, Carla, Thomas Hirsch, and Maria Marin. "Recent Advances in Near Infrared Upconverting Nanomaterials for Targeted Photodynamic Therapy of Cancer." Methods and Applications in Fluorescence, April 21, 2022. http://dx.doi.org/10.1088/2050-6120/ac6937.

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Abstract Photodynamic therapy (PDT) is a well-established treatment of cancer that uses the toxic reactive oxygen species, including singlet oxygen (1O2), generated by photosensitiser drugs following irradiation of a specific wavelength to destroy the cancerous cells and tumours. Visible light is commonly used as the excitation source in PDT, which is not ideal for cancer treatment due to its reduced tissue penetration, and thus inefficiency to treat deep-lying tumours. Additionally, these wavelengths exhibit elevated autofluorescence background from the biological tissues which hinders optica
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31

Diego, Mendez-Gonzalez, Torres Vera Vivian, Zabala Gutierrez Irene, et al. "Upconverting Nanoparticles in Aqueous Media: Not a Dead-End Road. Avoiding Degradation by Using Hydrophobic Polymer Shells." December 13, 2021. https://doi.org/10.5281/zenodo.5793193.

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The stunning optical properties of upconverting nanoparticles (UCNPs) have inspired promising and unique biomedical technologies. However, as a necessary step for their use in bio-applications, their transfer to aqueous media is accompanied by highly detrimental effects. Namely, intense luminescence quenching and partial dissolution by water, as well as complete degradation by other molecules such as phosphates. Whereas the translation of UCNPs to the medical market would open new and interesting avenues for ultrasensitive diagnostics and other medical technologies, their concentration- and ti
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32

Shi, Shuzhi, Cheng Liao, Yufu Liu, et al. "Upconverting Ultra‐Thin Bi2O2CO3 Nanosheets for Synergistic Photodynamic Therapy and Radiotherapy." Advanced Healthcare Materials, July 18, 2024. http://dx.doi.org/10.1002/adhm.202401586.

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AbstractSynergistic therapy has become the major therapeutic method for malignant tumors in clinical. Photodynamic therapy (PDT) and radiotherapy (RT) always combine together because of their identical anti‐tumor mechanisms, that is reactive oxygen species are generated by the use of radiosensitizers after irradiation by X‐ray to efficiently kill cancer cells, PDT also follows similar mechanism. Full exposure of energy‐absorbing species in nanomaterials to X‐ray or near‐infrared light irradiation makes the energy interchange between nanomaterials and surrounding H2O or dissolved oxygen easier,
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33

Maciejewska, Kamila, Artur Bednarkiewicz, Andries Meijerink, and Łukasz Marciniak. "Correlation between the Covalency and the Thermometric Properties of Yb3+/Er3+ Codoped Nanocrystalline Orthophosphates." January 21, 2021. https://doi.org/10.5281/zenodo.6351497.

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Lanthanide doped NaYF<sub>4</sub> nanoparticles are most frequently studied hosts materials for numerous biomedical applications. Although efficient upconversion can be obtained in fluoride nanomaterials and good homogeneity of size and morphology is achieved, they are not very predestined for extensive material optimisation towards enhanced features and function. Here we study the impact of RE=Y, Lu, La and Gd ions within Yb<sup>3+</sup>/Er<sup>3+</sup> co-doped nanocrystalline REPO<sub>4</sub> orthophosphates. The enhanced luminescent thermometry features were found in relation to the covale
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34

Xie, Yao, Yapai Song, Guotao Sun, Pengfei Hu, Artur Bednarkiewicz, and Lining Sun. "Lanthanide-doped heterostructured nanocomposites toward advanced optical anti-counterfeiting and information storage." Light: Science & Applications 11, no. 1 (2022). http://dx.doi.org/10.1038/s41377-022-00813-9.

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AbstractThe continuously growing importance of information storage, transmission, and authentication impose many new demands and challenges for modern nano-photonic materials and information storage technologies, both in security and storage capacity. Recently, luminescent lanthanide-doped nanomaterials have drawn much attention in this field because of their photostability, multimodal/multicolor/narrowband emissions, and long luminescence lifetime. Here, we report a multimodal nanocomposite composed of lanthanide-doped upconverting nanoparticle and EuSe semiconductor, which was constructed by
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35

Diego, Mendez-Gonzalez, Torres Vera Vivian, Zabala Gutierrez Irene, et al. "Upconverting Nanoparticles in Aqueous Media: Not a Dead-End Road. Avoiding Degradation by Using Hydrophobic Polymer Shells." May 28, 2022. https://doi.org/10.1002/smll.202105652.

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The stunning optical properties of upconverting nanoparticles (UCNPs) have inspired promising biomedical technologies. Nevertheless, their transfer to aqueous media is often accompanied by intense luminescence quenching, partial dissolution by water, and even complete degradation by molecules such as phosphates. Currently, these are major issues hampering the translation of UCNPs to the clinic. In this work, a strategy is developed to coat and protect &beta;-NaYF<sub>4</sub>&nbsp;UCNPs against these effects, by growing a hydrophobic polymer shell (HPS) through miniemulsion polymerization of st
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36

Nguyen, Huong, Thao Do, Nghia Nguyen Trong, et al. "Optic bionanospherical probe from Gd\(_2\)O\(_3\): Yb, Er upconverting nanosphere and mAb^CD133 antibody for precise imaging label of cancer stem cell NTERA-2." Communications in Physics 33, no. 3 (2023). http://dx.doi.org/10.15625/0868-3166/18226.

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Rare earth photonic nanomaterials are increasingly prominently applied in various fields of biomedicine. Currently, there is greater focus on the investigation to control the size and shape of nanomaterials, including the nanospherical form, which allows for precise labeling by only one nanoparticle. This paper demonstrates, for the first time, the construction of a biological nanospherical probe (BNSP) Gd2O3: Yb3+, Er3+/Silica/NH/mAb^CD133 for diagnostic labeling of cancer stem cells (CSCs) NTERA-2. The BNSP was constructed using highly monodisperse spheres with around 200nm uniform size of G
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37

Saidi, Kamel, Mariem Yangui, Christian Hernández-Álvarez, Mohamed Dammak, Inocencio Rafael Martín Benenzuela, and Marcin Runowski. "Multifunctional Optical Sensing with Lanthanide-Doped Upconverting Nanomaterials: Improving Detection Performance of Temperature and Pressure in the Visible and NIR Ranges." ACS Applied Materials & Interfaces, April 6, 2024. http://dx.doi.org/10.1021/acsami.4c00313.

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38

Harrington, Benjamin, Chi Zhang, Xiaoshan Liu, Asa Guldbrandsen, and Andrea D. Pickel. "Leveraging Ronchi Rulings as Reconfigurable Microscale Joule Heaters." Advanced Engineering Materials, March 3, 2025. https://doi.org/10.1002/adem.202402918.

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Microscale heating platforms capable of generating localized temperature rises can find applications in wide‐ranging areas including nanomaterials synthesis and microscale thermometry. Here, commercially available optical calibration samples called Ronchi rulings, which consist of an array of chrome lines on a float glass substrate, are demonstrated to serve as reconfigurable Joule heaters. Electrical connections are formed by wire bonding onto the chrome to Joule heat individual lines and monitor their temperature rises using electrical resistance thermometry. Tests across multiple heater lin
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39

Casillas‐Rubio, Alejandro, Marco Laurenti, Juan Pedro Cascales, Oscar G. Calderón, Diego Mendez‐Gonzalez, and Sonia Melle. "Wireless Nano Irradiance Meter Based on Upconversion Luminescence Lifetime." Advanced Optical Materials, June 14, 2025. https://doi.org/10.1002/adom.202500093.

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AbstractMeasuring light irradiance, or power density, within a material is essential for ensuring the precision, efficiency, and safety of light‐based technologies, such as photodynamic therapies, optical sensing, and material processing. However, this task becomes particularly challenging in scenarios involving highly scattering or absorbing media, dynamic systems with varying properties, or confined and hardly accessible compartments. These challenges can be addressed by using colloidal luminescent nanomaterials with luminescence lifetimes strongly dependent on excitation irradiance. Buildin
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40

Alexandrov, Alexander A., Mariya N. Mayakova, Valery V. Voronov та ін. "Синтез ап-конверсионных люминофоров на основе фторида кальция". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 22, № 1 (2020). http://dx.doi.org/10.17308/kcmf.2020.22/2524.

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Исследование посвящено созданию люминофора на основе фторида кальция, легированного редкоземельными элементами: 5% Yb, 1% Er, с использованием методики синтеза из раствора в расплаве. В качестве растворителя использован нитрат натрия NaNO3, в качестве фторирующего агента – фторид натрия NaF. Полученные образцы охарактеризованы методами рентгенофазового анализа, рентгеноспектрального микроанализа, растровой электронной микроскопии и люминесцентной спектроскопии.В ходе работы исследовано влияние параметров синтеза на фазовый состав и морфологию частиц. Было установлено, что для формирования одно
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