Radiation-induced change of optical property of hydroxypropyl cellulose hydrogel containing methacrylate compounds: As a basis for development of a new type of radiation dosimeter
Hydrogels with matrix of a cellulose derivative, hydrogel of hydroxpropyl cellulose (HPC), containing two of methacrylate compounds (2-hydroxyethyl methacrylate (HEMA) and poly(ethylene glycol) dimethacrylate (9G)) were irradiated with 60Co γ-rays. The gels become white with irradiation, and thus, c...
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| Veröffentlicht in: | Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2014-08, Vol.101, p.53-58 |
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| container_title | Radiation physics and chemistry (Oxford, England : 1993) |
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| creator | Yamashita, Shinichi Hiroki, Akihiro Taguchi, Mitsumasa |
| description | Hydrogels with matrix of a cellulose derivative, hydrogel of hydroxpropyl cellulose (HPC), containing two of methacrylate compounds (2-hydroxyethyl methacrylate (HEMA) and poly(ethylene glycol) dimethacrylate (9G)) were irradiated with 60Co γ-rays. The gels become white with irradiation, and thus, could be candidates of a new type of radiation dosimeter utilized in radiation therapy because the gels become white with irradiation and can be confirmed directly by human eyes even at low doses of 1–2Gy. Radiation-induced change of optical properties, haze value and UV–vis absorption spectrum, of the irradiated gels was measured. Dose response of the white turbidity appearance was different for different compositions of the methacrylate compounds as well as for different dose rates. The degree of the radiation-induced white turbidity was quantified by measuring haze value, showing linear dose response in low dose region ( |
| doi_str_mv | 10.1016/j.radphyschem.2014.04.004 |
| format | Article |
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•White turbidity appeared even at 1 or 2Gy of 60Co γ-ray irradiation.•Haze could be used as an index of the degree of white turbidity.•UV–vis spectroscopy indicated multiple mechanisms leading to white turbidity.</description><subject>Cellulose</subject><subject>Dosage</subject><subject>Dosimeter</subject><subject>Dosimeters</subject><subject>Gels</subject><subject>Haze</subject><subject>Hydrogel</subject><subject>Hydrogels</subject><subject>Hydroxypropyl cellulose (HPC)</subject><subject>Irradiation</subject><subject>Methacrylate</subject><subject>Optical properties</subject><subject>Turbidity</subject><subject>White turbidity</subject><issn>0969-806X</issn><issn>1879-0895</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkd2KFDEQhRtRcFz3HeKdNz1WNv2TeLcM_sGCIC7sXahJqqczdCdtkl7t5_IF7XYUvBQKCj6qTtXhFMUrDnsOvHlz3ke0U78k09O4vwFe7WEtqJ4UOy5bVYJU9dNiB6pRpYTm4XnxIqUzALSyFrvi5xe0DrMLvnTezoYsMz36E7HQsTBlZ3BgUwwTxbxsrF9sDD-WDS0DMzQM8xASXfiJVhR8RuedP7GRco8mLgNmWvk4hdnb9JbdJobsiMkl1oXILD3SEKaRfN4uIPP0neVl-v1D_PsfsyG5VZHiy-JZh0Oi6z_9qrh__-7r4WN59_nDp8PtXWmqludStUK0EiRUaDpTqyMpbtr22IhaUC0kdryTVpqjghaF6GRnDQISF1CTkUpcFa8vuqvZbzOlrEeXNsfoKcxJ86bldcWbehtVl1ETQ0qROj1FN2JcNAe9BaXP-p-g9BaUhrWgWncPl11avTw6ijoZR36NwkUyWdvg_kPlFxVcqME</recordid><startdate>20140801</startdate><enddate>20140801</enddate><creator>Yamashita, Shinichi</creator><creator>Hiroki, Akihiro</creator><creator>Taguchi, Mitsumasa</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7SU</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140801</creationdate><title>Radiation-induced change of optical property of hydroxypropyl cellulose hydrogel containing methacrylate compounds: As a basis for development of a new type of radiation dosimeter</title><author>Yamashita, Shinichi ; Hiroki, Akihiro ; Taguchi, Mitsumasa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c471t-9733780804acfc59be91c77b6353e538af1f8d8cb907a33f8fdca0ae1305ec893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Cellulose</topic><topic>Dosage</topic><topic>Dosimeter</topic><topic>Dosimeters</topic><topic>Gels</topic><topic>Haze</topic><topic>Hydrogel</topic><topic>Hydrogels</topic><topic>Hydroxypropyl cellulose (HPC)</topic><topic>Irradiation</topic><topic>Methacrylate</topic><topic>Optical properties</topic><topic>Turbidity</topic><topic>White turbidity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yamashita, Shinichi</creatorcontrib><creatorcontrib>Hiroki, Akihiro</creatorcontrib><creatorcontrib>Taguchi, Mitsumasa</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Radiation physics and chemistry (Oxford, England : 1993)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yamashita, Shinichi</au><au>Hiroki, Akihiro</au><au>Taguchi, Mitsumasa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Radiation-induced change of optical property of hydroxypropyl cellulose hydrogel containing methacrylate compounds: As a basis for development of a new type of radiation dosimeter</atitle><jtitle>Radiation physics and chemistry (Oxford, England : 1993)</jtitle><date>2014-08-01</date><risdate>2014</risdate><volume>101</volume><spage>53</spage><epage>58</epage><pages>53-58</pages><issn>0969-806X</issn><eissn>1879-0895</eissn><abstract>Hydrogels with matrix of a cellulose derivative, hydrogel of hydroxpropyl cellulose (HPC), containing two of methacrylate compounds (2-hydroxyethyl methacrylate (HEMA) and poly(ethylene glycol) dimethacrylate (9G)) were irradiated with 60Co γ-rays. The gels become white with irradiation, and thus, could be candidates of a new type of radiation dosimeter utilized in radiation therapy because the gels become white with irradiation and can be confirmed directly by human eyes even at low doses of 1–2Gy. Radiation-induced change of optical properties, haze value and UV–vis absorption spectrum, of the irradiated gels was measured. Dose response of the white turbidity appearance was different for different compositions of the methacrylate compounds as well as for different dose rates. The degree of the radiation-induced white turbidity was quantified by measuring haze value, showing linear dose response in low dose region (<2Gy). We also analyzed the gels with a UV–vis spectrometer and HEMA- and 9G-rich gels gave different spectral shapes, indicating that there are at least two mechanisms leading to the white turbidity. In addition, dose rate dependence was smaller for 9G-rich gels than HEMA-rich gels in the range of 0.015–1.5Gy/min.
•White turbidity appeared even at 1 or 2Gy of 60Co γ-ray irradiation.•Haze could be used as an index of the degree of white turbidity.•UV–vis spectroscopy indicated multiple mechanisms leading to white turbidity.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.radphyschem.2014.04.004</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Cellulose Dosage Dosimeter Dosimeters Gels Haze Hydrogel Hydrogels Hydroxypropyl cellulose (HPC) Irradiation Methacrylate Optical properties Turbidity White turbidity |
| title | Radiation-induced change of optical property of hydroxypropyl cellulose hydrogel containing methacrylate compounds: As a basis for development of a new type of radiation dosimeter |
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