Article
Biochemistry & Molecular Biology
Amanda Burg Rech, Angela Kinoshita, Paulo Marcos Donate, Otaciro Rangel Nascimento, Oswaldo Baffa
Summary: The study of new materials for radiation dosimetry is crucial for improving technology and measuring accidental radiation exposure. Sulfites, widely used in the food industry, show potential as fortuitous radiation detectors. Electron spin resonance (ESR) spectroscopy enables the measurement of dose-response behavior and signal stability in sulfite compounds.
Article
Optics
Yunxiao He, Wei Hong, Jianfei Hua, Wei Qi, Zhimeng Zhang, Gang Li, Bo Cui, Feng Lu, Zhigang Deng, Shukai He, Jingqin Su, Weimin Zhou, Wei Lu, Yuqiu Gu
Summary: This novel method utilizes the radiochromic effect to measure the fluence distribution of intense short laser pulses, enabling large detection areas and high spatial resolution, suitable for radiochromic films.
Article
Chemistry, Analytical
Maciej Gliniak, Tomasz Drozdz, Slawomir Kurpaska, Anna Lis
Summary: The article examines and evaluates the radiation emitted by different building materials over time using the EKO-C dosimetry device. It found that bricks and hollow blocks emit the highest radiation, while insulation materials and finishing boards have lower levels of radiation. According to the test results and government regulations, individually tested samples do not pose a radiation risk to humans, and the total radiation dose when using all types of samples does not exceed the limit.
Review
Polymer Science
Yves De Deene
Summary: Gel dosimetry is a method used to validate the radiation dose distribution in high-precision radiotherapy for cancer patients. It involves using gel dosimeters that undergo oxidation or color change upon exposure to ionizing radiation. There are three classes of gel dosimeters: Fricke gel dosimeters, radiochromic gel dosimeters, and polymer gel dosimeters, which are read out using quantitative magnetic resonance imaging (MRI) or X-ray CT. With the introduction of the MR-Linac, the ability to acquire dose maps during radiation has been demonstrated, but new challenges have emerged.
Article
Radiology, Nuclear Medicine & Medical Imaging
Michael G. Stabin, Richard E. Wendt, Glenn D. Flux
Summary: This paper presents standardized methods for performing dose calculations for radiopharmaceuticals, outlining various steps in the process and reviewing special models. It also provides examples and can be used as a template for designing and executing kinetic studies to calculate radiation dose estimates from animal or human data.
JOURNAL OF NUCLEAR MEDICINE
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Michael G. Stabin, Richard E. Wendt, Glenn D. Flux
Summary: This paper presents standardized methods for collecting data to be used in performing dose calculations for radiopharmaceuticals. Various steps in the process are outlined, with some specific examples given. This document can be used as a template for designing and executing kinetic studies for calculating radiation dose estimates, from animal or human data.
JOURNAL OF NUCLEAR MEDICINE
(2022)
Article
Chemistry, Physical
Y. Alashban, N. Shubayr, M. Almalki, S. Albeshan, A. M. Aldosari
Summary: The study investigated occupational radiation exposure in cyclotron workers in Saudi Arabia and found that workers' doses did not exceed the dose limits set by the International Commission of Radiological Protection. It recommended that workers wear ring dosimeters for accurate measurement and use advanced absorbers to discriminate between different types of radiation.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Plant Sciences
Pinglong Fan, Yanling Yang, Tao Liu, Xiaolu Lu, Hao Huang, Lei Chen, Ying Kuang
Summary: The study suggests that Viola yedoensis Makiho may be a potential remedy for atopic dermatitis due to its traditional usage and superior anti-inflammatory effects. In a mouse model of atopic dermatitis induced by DNCB, Viola yedoensis Makiho ethanol extract alleviated symptoms by inhibiting the T cell-mediated allergic immune response.
JOURNAL OF ETHNOPHARMACOLOGY
(2021)
Article
Chemistry, Analytical
Marie-Anne Lebel-Cormier, Tommy Boilard, Martin Bernier, Luc Beaulieu
Summary: The study demonstrates that embedding a doped silica fiber FBG in a polymer material can achieve a minimum detectable dose of 0.3 Gy for gamma-radiation, with the potential for low-dose applications such as radiotherapy dosimetry.
Article
Oncology
Jelena Lukovic, Ali Hosni, Amy Liu, Jasmine Chen, Tony Tadic, Tirth Patel, Kecheng Li, Kathy Han, Patricia Lindsay, Tim Craig, James Brierley, Aisling Barry, Rebecca Wong, Jolie Ringash, Laura A. Dawson, John J. Kim
Summary: This study investigates the impact of dosimetric parameters on acute and late toxicity for patients with anal squamous cell carcinoma treated with image-guided intensity modulated radiation therapy and concurrent chemotherapy. The results show significant associations between dose/volume parameters and acute and late toxicities. These findings can be used for individualized risk prediction and treatment planning.
RADIOTHERAPY AND ONCOLOGY
(2023)
Article
Chemistry, Physical
Minggao Xu, Baozhong Zhu, Long Zhao, Yunlan Sun, Yang Pan, Jiuzhong Yang
Summary: The pyrolysis of chlorobenzene at high temperatures produces benzene as the main product, along with various chlorinated aromatics as intermediates. Free radicals and o-benzyne play crucial roles in the decomposition pathways of chlorobenzene. Meanwhile, small-molecule products such as acetylene, 1,3,5-hexatriyne, and diacetylene are formed through the bond cleavage of o-benzyne.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Hammam Abdurabu Thabit, Abd Khamim Ismail, Norlaili A. Kabir, Abdulmajeed Muidh Al Mutairi, Abdullah Bafaqeer, Shoroog Alraddadi, Nuru-Deen Jaji, M. I. Sayyed, Salem Mgammal Al-Ameri
Summary: This study introduces a new sensor for photonic dosimetry, synthesized using RF sputtering at 300 degrees C. The dosimetric properties were investigated for X-ray doses up to 4 Gy, showing a linear dose-response. The system ZnO(300 nm)/Ag(50 nm)/ZnO(x nm) exhibited the highest thermoluminescence intensity and a single peak in the glow curve at 246 degrees C. Various dosimeter parameters, such as homogeneity, precision, and fading properties, were examined, and the proposed dosimeter showed good radiation-measuring characteristics.
Article
Chemistry, Analytical
Zahra Alyani Nezhad, Ghazale Geraily, Wrya Parwaie, Elham Hossein Nezhad
Summary: This study evaluated the dose enhancement factor (DEF) of bismuth oxide nanoparticles using different gel dosimeters. The results showed that DEF decreased when nanoparticles were combined with the gel. Therefore, the characteristics of nanoparticles and the components of the gel can significantly affect the feasibility of using a gel dosimeter to evaluate DEF.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Environmental Sciences
Martin Tondel, Tobias Nordquist, Mats Isaksson, Christopher Raaf, Robert Walinder
Summary: This study investigated the dose-response relationship of cancer incidence in Swedish males after the Chernobyl Nuclear Power Plant accident. The results showed that some cancer sites previously associated with ionizing radiation showed an increased risk per dose in both the full cohort and the hunter subcohort.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Oncology
Ileana Silvestre Patallo, Anna Subiel, Rebecca Carter, Samuel Flynn, Giuseppe Schettino, Andrew Nisbet
Summary: This study characterized a detection system based on inorganic scintillators and assessed its suitability for dosimetry in preclinical radiation research. The system showed good performance in dose quality control, dose response, and dose output factor measurements. Therefore, the inorganic scintillation system is a useful tool for dose verification in medium-energy X-rays delivered by Image-Guided Small Animal Radiotherapy Platforms.
Article
Green & Sustainable Science & Technology
Durica Katnic, Milena Marinovic-Cincovic, Slavica J. Porobic, Ivica Vujcic, Aleksandra Saponjic, Biljana Sikiric, Dragana Zivojinovic
Summary: Redirecting waste biomass back into the economy has economic and environmental benefits. This research characterized waste biomass and investigated its combustion behavior using physico-chemical analysis and thermal analysis techniques. The kinetic analysis of the biomass decomposition process was performed, and different methods were used to obtain activation energy values. The results can be used for the design of pyrolysis reactors and have ecological significance in solving solid waste disposal problems.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Analytical
Jovana Perisa, Aleksandar Ciric, Ivana Zekovic, Vesna Dordevic, Milica Sekulic, Zeljka Antic, Miroslav D. Dramicanin
Summary: In this study, the sensitivity of luminescence thermometry was enhanced at high temperatures using a Dy3+-activated yttrium aluminum perovskite material. The material showed a small crystallite size and specific morphology, making it suitable for temperature measurement in high-temperature environments. However, the chemical stability of the host material and temperature quenching remain significant limitations of this method.
Article
Optics
Miroslav D. Dramicanin, Lukasz Marciniak, Sanja Kuzman, Wojciech Piotrowski, Zoran Ristic, Jovana Perisa, Ivana Evans, Jelena Mitric, Vesna Dordevic, Nebojsa Romcevic, Mikhail G. Brik, Chong-Geng Ma
Summary: The near-infrared luminescence of Ca6Ba(PO4)(4)O:Mn5+ is studied and explained in this paper. The phosphor exhibits a narrow emission band and high internal quantum efficiency. The crystal field and Racah parameters are derived, and the appropriate Tanabe-Sugano diagram is calculated to explain the luminescence mechanism. Additionally, the electronic band structure, density of states, and vibrational spectra of the Eu2+ dopant in Ca6Ba(PO4)(4)O are investigated. Finally, the phosphor is applied in luminescence intensity ratio thermometry, showing potential for physiological temperature measurements.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Bojan Rankovic, Vuk Gajic, Slobodan Masic, Vladimir Pavicevic, Ivica Vujcic
Summary: In this study, the effects of aging on waste sludge treated with e-beam and gamma irradiation were investigated. The results showed that the content of acrylamide in treated sludge did not exceed the limits for fertilizer use after 15 months of storage. Proper storage conditions can prevent an increase in microorganisms and molds. Aging did not decrease the physicochemical characteristics of the sludge treated in this way, nor did it change the concentration of heavy metals and total nutrients.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Chemistry, Physical
K. Maciejewska, P. Szklarz, A. Bednarkiewicz, M. D. Dramicanin, L. Marciniak
Summary: This study demonstrated that temperature-driven irreversible structural phase transformations in Eu3+ activated LaPO4, La0.5Y0.5PO4, and YPO4 nanocrystals can be utilized for thermal history measurements in the temperature range of 200°C-1000°C. The changes in Eu3+ local surroundings due to temperature increase modified the intensity and emission spectra, and the intensity ratio of Eu3+ 5D0 -> 7F2 to 5D0 -> 7F1 emissions served as a highly-sensitive indicator of the highest temperature experienced by the nanocrystals. The proposed ratiometric readout strategy enhanced the accuracy of thermal history analysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
A. V. Racu, Z. Ristic, A. Ciric, V. Dordevic, G. Buse, M. Poienar, M. J. Gutmann, O. Ivashko, M. Stef, D. Vizman, M. D. Dramicanin, M. Piasecki, M. G. Brik
Summary: This study investigates the correlation between optical properties, local symmetry, and crystal structure in CaF2 and BaF2 fluoride crystals doped with ErF3. The differences in optical properties between CaF2 and BaF2 crystals at room temperature are observed and attributed to the differences in cationic radius and dopant-host ionic radius. The determined symmetries and bond lengths of Er3+- F- ions in both crystals are reported. This study provides valuable insight into the development of lanthanide-doped optical materials.
Article
Nuclear Science & Technology
Ivana Sandeva, Hristina Spasevska, Margarita Ginovska, Lihnida Stojanovska-Georgievska, Slobodan Masic
Summary: This study introduces standard physical methods to detect irradiated herbs and spices. The results show that light, both natural and artificial, has a strong influence on the photostimulated luminescence signal.
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Wojciech M. Piotrowski, Riccardo Marin, Maja Szymczak, Emma Martin Rodriguez, Dirk H. Ortgies, Paloma Rodriguez-Sevilla, Miroslav D. Dramicanin, Daniel Jaque, Lukasz Marciniak
Summary: Lifetime-based luminescence thermometry enables accurate deep-tissue monitoring of temperature changes, but short lifetimes and poor brightness limit its performance. A solution to these limitations is the design and optimization of luminescent nanothermometers co-doped with transition metal and lanthanide ions, which exhibit strong near-infrared emission and long temperature-dependent photoluminescence lifetime. These nanothermometers, combined with a custom-made instrument, allow for obtaining 2D thermal maps for deep-tissue thermal mapping. This study provides foundations for the deployment of lifetime-based thermometry for accurate deep-tissue temperature monitoring.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bojana Milicevic, Jovana Perisa, Zoran Ristic, Katarina Milenkovic, Zeljka Antic, Krisjanis Smits, Meldra Kemere, Kaspars Vitols, Anatolijs Sarakovskis, Miroslav D. D. Dramicanin
Summary: We present a hydrothermal synthesis method for ultrasmall Yb3+/Tm3+ co-doped Sr2LaF7 (SLF) upconversion phosphors. By varying the concentrations of Yb3+ (x = 10, 15, 20, and 25 mol%) and Tm3+ (y = 0.75, 1, 2, and 3 mol%), the emissions in the near IR spectral range were analyzed. Structural analysis revealed that Yb3+ and Tm3+ occupy the La3+ sites in the SLF host. The addition of Yb3+/Tm3+ ions significantly affected the lattice constant, particle size, and PL emission properties of the synthesized SLF nanophosphor. The optimal dopant concentrations for upconversion luminescence were found to be 20 mol% Yb3+ and 1 mol% Tm3+ with EDTA as the chelating agent. Strong upconversion emission of Tm3+ ions around 800 nm was achieved under 980 nm light excitation. The study suggests potential applications of ultrasmall Yb3+/Tm3+ co-doped SLF phosphors in fluorescent labels for bioimaging and security.
Article
Biophysics
Jelena Papan Djanis, Jovana Perisa, Patricija Hribar Bostjancic, Katarina Mihajlovski, Vesna Lazic, Miroslav Dramicanin, Darja Lisjak
Summary: Colloidal stabilization is crucial for the preparation of magnetic nanoparticles for biomedical applications. In this study, tannic acid was used as a coating for barium hexaferrite nanoplatelets (BSHF NPLs) to achieve stability in aqueous media. The coated BSHF NPLs were characterized and their magnetic properties were measured. The stable colloids were tested in biological media, and the antimicrobial properties were examined. To enhance antimicrobial activity, tannic acid was used as a platform for the in-situ production of silver on BSHF NPLs. The hybrid material exhibited magnetic properties and excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Chemistry, Applied
Mirjana Ristic, Suzana Samarzija-Jovanovic, Vojislav Jovanovic, Marija Kostic, Tijana Jovanovic, Gordana Markovic, Marija Kojic, Ivica Vujcic, Milena Marinovic-Cincovic
Summary: To investigate the effect of bio-fillers on the hydrolytic and thermal stability of UF resins, UF resin was modified with hydrochar of spent mushroom substrate (HCUF) and chitosan (CHUF). The modified UF biocomposites were characterized using XRD, FTIR, TG, DTG, DTA, and SEM. Chitosan bonded to the UF resin through hydrogen bonds and showed better hydrolytic and thermal stability compared to HCUF.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Vanja Malisic, Vuk Gajic, Slavica Porobic, Aleksandra Pataric, Slavisa Putic, Ivica Vujcic
Summary: Polymethyl methacrylate (PMMA) is widely used in dental applications due to its excellent biocompatibility and low cost. Adding Al2O3 nanoparticles to PMMA can improve its mechanical properties. This study aims to determine the influence of different doses of gamma radiation on the properties of PMMA/Al2O3 composite.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Analytical
Tahani A. Alrebdi, Abdullah N. Alodhayb, Zoran Ristic, Miroslav D. Dramicanin
Summary: In this study, the performance of single- and multiparametric luminescence thermometry based on the temperature-dependent spectral features of Ca6BaP4O17:Mn5+ near-infrared emission was investigated. Experimental results showed that as the temperature increased, the intensities of the T-3(2) and Stokes bands increased, while the peak of the E-1 emission band redshifted. The multiparametric luminescence thermometry showed comparable performance to the best single-parameter thermometry.
Article
Materials Science, Multidisciplinary
Abbi L. Mullins, Aleksandar Ciric, Ivana Zekovic, J. A. Gareth Williams, Miroslav D. Dramicanin, Ivana Radosavljevic Evans
Summary: A series of La1-xGa0.99O3:Cr-0.01, Nd-x phosphors were synthesized for luminescence thermometry. The compounds feature near infra-red emissions from transition metal and rare earth activator ions, making them attractive for potential in vivo applications. The thermometric analysis showed high sensitivity, excellent temperature resolution, and high stability by monitoring the luminescence intensity ratio between Cr3+ and Nd3+ emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Electrical & Electronic
Zoran Ristic, Wojciech Piotrowski, Mina Medic, Jovana Perisa, Zeljka M. Antic, Lukasz Marciniak, Miroslav D. Dramicanin
Summary: This paper describes Mn5+-activated Sr-3(PO4)(2) and Ba-3(PO4)(2) phosphors as near-infrared lifetime-based luminescence thermometry probes. The materials were prepared by a solid-state method and their structures were confirmed by X-ray diffraction analysis. The study found that the materials showed broad and strong absorption in the range of 650 to 950 nm, with a red shift in the emission maximum. The temperature properties of the phosphors were evaluated by measuring the temperature dependence of the Mn5+ excited-state lifetime.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
