The following data provide evidence of the green functionalization process of a cellulose substrate by gamma radiation to be used as template in the preparation of photocatalyst composites. Functionalized cellulose, by gamma radiation treatment, improved its stability in water and exhibited a reduced size. Our data showed an intensification of carbonyl groups signal and a decrease in the thermal stability of the cellulose as result of the gamma radiation dose. Infrared and thermal data of the treated cellulose provide evidence of bond scission and the formation of functional groups that improved it is application as template. Finally, the conductive polymer poly(3,4-ethylenedioxythiophene) was deposited on the gamma irradiated cellulose to be used as photo-catalyze in the treatment of contaminated water with pharmaceutical compounds.
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http://dx.doi.org/10.1016/j.dib.2022.108277 | DOI Listing |
Environ Monit Assess
January 2025
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal, 249199, India.
Ionizing radiation emitted from radionuclides is present everywhere in the environment. It is the main source of health hazards to the general public. The present study elaborates on the analysis of primordial radionuclides in the collected soil samples from the Main Central Thrust (MCT) region of Uttarakhand Himalaya in a grid pattern.
View Article and Find Full Text PDFPhys Med Biol
January 2025
National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, JAPAN.
PET has become an important clinical modality but is limited to imaging positron emitters. Recently, PET imaging withZr, which has a half-life of 3 days, has attracted much attention in immuno-PET to visualize immune cells and cancer cells by targeting specific antibodies on the cell surface. However,Zr emits a single gamma ray at 909 keV four times more frequently than positrons, causing image quality degradation in conventional PET.
View Article and Find Full Text PDFPhys Med
January 2025
Department of Radiation Oncology, The Third Affiliated Hospital, Sun Yan-Sen University, Guangzhou 510630, China. Electronic address:
A preliminary study was conducted using electronic portal imaging device (EPID) based dose verification in pre-treatment and in vivo dose reconstruction modes for breast cancer intensity-modulated radiation therapy (IMRT) technique with known repositioning set-up errors. For 43 IMRT plans, the set-up errors were determined from 43 sets of EPID images and 258 sets of cone beam computed tomography images. In-house developed Edose software was used to reconstruct the dose distribution using the pre-treatment and on-treatment (in vivo) EPID acquired fluence maps.
View Article and Find Full Text PDFJ Neurosurg Pediatr
January 2025
1Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow; and.
Objective: The objective of this study was to discuss the characteristics of intracranial extension in patients with juvenile nasopharyngeal angiofibroma (JNA) and propose and an algorithm for its management.
Methods: A retrospective chart review of all patients with JNA who underwent operations between January 2013 and January 2023 was done, and those cases with intracranial extension categorized as stage IIIb, IVa, and IVb according to the Andrews modification of the Fisch staging classification were included in the study. Data were collected about age at presentation, symptoms, radiological findings, routes of intracranial extension, therapeutic management, and follow-up.
Nat Commun
January 2025
State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China.
High intrinsic detection efficiency is as decisive as high energy resolution. Scaling up detector volume has presented great challenges, preventing perovskite semiconductors from reaching sufficient detection efficiency. We report a hole-only virtual-Frisch-grid CsPbBr detector up to 2.
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