The emerging metal halide perovskites are challenging the traditional scintillators in the field of radiation detection and radiography. However, they lack the capability for remote and real-time radiation monitoring and imaging in confined and hostile conditions. To address this issue, details on an inorganic scintillating glass fiber incorporating perovskite quantum dots (QDs) as highly efficient pixelated radiation emitters are reported, while the glass fibers themselves serve at the same time as low-loss waveguides, enabling long-distance and underwater X-ray detection. The multi-color emissions and controllable radiation sensitivities endow CsPbX (X = Cl, Br, I) QD scintillating glass fibers with the potential as wearable and visualized radiation indicators. Furthermore, these scintillating glass fibers can be regularly arranged into a fiber array plate with a thickness of 7.5 mm to enhance X-ray absorption for X-ray imaging. Leveraging the light-guiding character of glass fibers, a 5 × 5 fiber array with fiber lengths up to 11 cm has demonstrated the potential of remote pixelated X-ray imaging. This study offers a novel platform for the development of remote detectors and imagers for X-ray radiation.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/adma.202405499 | DOI Listing |
Adv Mater
December 2024
State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
The emerging metal halide perovskites are challenging the traditional scintillators in the field of radiation detection and radiography. However, they lack the capability for remote and real-time radiation monitoring and imaging in confined and hostile conditions. To address this issue, details on an inorganic scintillating glass fiber incorporating perovskite quantum dots (QDs) as highly efficient pixelated radiation emitters are reported, while the glass fibers themselves serve at the same time as low-loss waveguides, enabling long-distance and underwater X-ray detection.
View Article and Find Full Text PDFSmall
December 2024
College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.
X-ray imaging utilizing organic-inorganic hybrid metal halide (OIHMH) glassy scintillators has garnered significant attention. But their inferior radioluminescence makes achieving rapid image acquisition difficult, posing a persistent challenge for dynamic imaging. Herein, organic phosphonium halide side-chain engineering is proposed, introducing bulky aromatic rings at the alkyl chain ends, to improve the radioluminescence of OIHMHs.
View Article and Find Full Text PDFCryobiology
November 2024
Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, 23 Pereyaslavska str., 61016, Kharkiv, Ukraine.
Nanocrystalline cerium dioxide is able to protect living cells from oxidative stress under the influence of various stress factors, in particular under the one of low temperatures. This study investigates the phase-structural transformations in aqueous solutions containing CeO nanoparticles (NPs) and their impact on the cryopreservation process. Differential scanning calorimetry and thermomechanical analysis were used to analyse the phase transitions in aqueous suspensions of CeO NPs and aqueous solutions of the cryoprotectant dimethyl sulfoxide (MeSO) with CeO NPs.
View Article and Find Full Text PDFRadiat Prot Dosimetry
November 2024
Department of Nuclear and Radiochemical Science, Kyushu Environmental Evaluation Association, 1-10-1 Matsukadai, Higashiku Fukuoka 813-0004, Japan.
The new electrolytic enrichment system with compact glass cell was designed. Three (Ni-Fe-Ni) electrodes are used, and electrolysis is carried out at a rate of 2.45 g per h with constant current density of 120 mA per cm2.
View Article and Find Full Text PDFInt J Mol Sci
October 2024
Department of Physiology, School of Medicine, Fujita Health University, Toyoake 470-1192, Aichi, Japan.
When exposed to X-rays, scintillators emit visible luminescence. X-ray-mediated optogenetics employs scintillators for remotely activating light-sensitive proteins in biological tissue through X-ray irradiation. This approach offers advantages over traditional optogenetics, allowing for deeper tissue penetration and wireless control.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!