Assessment of Pleurotus ostreatus and Pleurotus citrinopileatus mushroom as bioshielding materials for neutron attenuation in medical cyclotron
7 affiliations
- 1Department of Nuclear Engineering, Chittagong University of Engineering & Technology, Pahartali, Chittagong, Bangladesh
- 2Cyclotron Division, National Institute of Nuclear Medicine & Allied Sciences (NINMAS), Bangladesh Medical University Campus, Shahbag, Dhaka, Bangladesh
- 3Health Physics Division, Atomic Energy Centre, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
- 4Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah, Saudi Arabia
- 5Sustainable Research Center, Islamic University of Madinah, Madinah, Saudia Arabia
- 6Department of Physics, Chittagong University of Engineering & Technology, Pahartali, Chittagong, Bangladesh
- 7Advanced Materials Research Laboratory for Energy Storage Capacity Enhancement, HEAT Project (SPP-13266), Department of Physics, Chittagong University of Engineering & Technology, Pahartali, Chittagong, Bangladesh
Abstract
Neutron absorbance efficiency is crucial for radiation shielding and nuclear reactors, with mushrooms like Pleurotus Ostreatus (PO) and Pleurotus Citrinopleatus (PC) enhancing this property due to their nitrogen, phosphorus, potassium, cadmium, and carbon content. Processed into 3 × 3 inch blocks at the National Institute of Nuclear Medicine and Allied Science (NINMAS), the mushrooms are dried at 80°C and ground to powder for analysis. Structural studies using XRD, FESEM, FTIR, and UV-vis spectroscopic reveal high carbon and oxygen levels. For the PO, the XRD investigation showed a broad diffraction peak that corresponded to an estimated crystallite size of about 1.34 nm, while PC showed a mostly amorphous structure devoid of clear crystalline diffraction peaks. The FTIR identifies various functional groups, and UV-vis spectra confirm the presence of sulfur and carbon. Neutron interaction mechanisms in mushroom-derived shielding materials involve moderation and scattering by the hydrogen-rich matrix, followed by capture at nitrogen and sulfur sites. HPGe spectroscopic confirms effective neutron interaction and attenuation via the detection of activation products such as K-40 in this study. Both samples show significant K-40 levels of 30 Bq/kg, while Th-232 and U-238 are found to be 2–3 Bq/kg and 5–6 Bq/kg, respectively. The findings demonstrate that these mushroom blocks are not neutron-transparent, but rather contribute to neutron moderation and absorption acts as a bio-shielding materials in the cyclotron facility.
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BibTeX
@article{hasan2026assessment,
title = {{Assessment of Pleurotus ostreatus and Pleurotus citrinopileatus mushroom as bioshielding materials for neutron attenuation in medical cyclotron}},
author = {Md. Jahid Hasan and Md. Nahid Hossain and Hasan Mehdi and Jannatul Ferdous and Md. Shohag Mia and Md. Akhtaruzzaman and Md. Mohi Uddin},
journal = {PLOS One},
year = {2026},
month = nov,
doi = {10.1371/journal.pone.0362063},
url = {https://doi.org/10.1371/journal.pone.0362063},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Assessment of Pleurotus ostreatus and Pleurotus citrinopileatus mushroom as bioshielding materials for neutron attenuation in medical cyclotron
AU - Md. Jahid Hasan
AU - Md. Nahid Hossain
AU - Hasan Mehdi
AU - Jannatul Ferdous
AU - Md. Shohag Mia
AU - Md. Akhtaruzzaman
AU - Md. Mohi Uddin
PY - 2026
DA - 2026/11/04
JO - PLOS One
DO - 10.1371/journal.pone.0362063
UR - https://doi.org/10.1371/journal.pone.0362063
AB - Neutron absorbance efficiency is crucial for radiation shielding and nuclear reactors, with mushrooms like Pleurotus Ostreatus (PO) and Pleurotus Citrinopleatus (PC) enhancing this property due to their nitrogen, phosphorus, potassium, cadmium, and carbon content. Processed into 3 × 3 inch blocks at the National Institute of Nuclear Medicine and Allied Science (NINMAS), the mushrooms are dried at 80°C and ground to powder for analysis. Structural studies using XRD, FESEM, FTIR, and UV-vis spectroscopic reveal high carbon and oxygen levels. For the PO, the XRD investigation showed a broad diffraction peak that corresponded to an estimated crystallite size of about 1.34 nm, while PC showed a mostly amorphous structure devoid of clear crystalline diffraction peaks. The FTIR identifies various functional groups, and UV-vis spectra confirm the presence of sulfur and carbon. Neutron interaction mechanisms in mushroom-derived shielding materials involve moderation and scattering by the hydrogen-rich matrix, followed by capture at nitrogen and sulfur sites. HPGe spectroscopic confirms effective neutron interaction and attenuation via the detection of activation products such as K-40 in this study. Both samples show significant K-40 levels of 30 Bq/kg, while Th-232 and U-238 are found to be 2–3 Bq/kg and 5–6 Bq/kg, respectively. The findings demonstrate that these mushroom blocks are not neutron-transparent, but rather contribute to neutron moderation and absorption acts as a bio-shielding materials in the cyclotron facility.
SN - 1932-6203
ER -