ArticleGels (Basel, Switzerland)2022
How Xylenol Orange and Ferrous Ammonium Sulphate Influence the Dosimetric Properties of PVA-GTA Fricke Gel Dosimeters: A Spectrophotometric Study.
Article in Gels (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 25 citations in OpenAlex.
- Multiscale investigation of radiation-induced structural evolution and stability of GdRSC advances · 2026Article
- Radiation-Sensitive Nano-, Micro-, and Macro-Gels and Polymer Capsules for Use in Radiotherapy Dosimetry.International journal of molecular sciences · 2025Article
- Optically Stimulated Luminescence Silicone Foils for 2D Dose Mapping in Proton Radiotherapy.Materials (Basel, Switzerland) · 2025Article
- Diffusion Correction in Fricke Hydrogel Dosimeters: A Deep Learning Approach with 2D and 3D Physics-Informed Neural Network Models.Gels (Basel, Switzerland) · 2024Article
- Versatile ferrous oxidation-xylenol orange assay for high-throughput screening of lipoxygenase activity.Applied microbiology and biotechnology · 2024Article
- Microscopic and Macroscopic Characterization of Hydrogels Based on Poly(vinyl-alcohol)-Glutaraldehyde Mixtures for Fricke Gel Dosimetry.Gels (Basel, Switzerland) · 2024Article
- Gel Dosimetry.Gels (Basel, Switzerland) · 2023Article
- Radiation Dosimetry by Use of Radiosensitive Hydrogels and Polymers: Mechanisms, State-of-the-Art and Perspective from 3D to 4D.Gels (Basel, Switzerland) · 2022Review
- Three-Dimensional Dosimetry by Optical-CT and Radiochromic Gel Dosimeter of a Multiple Isocenter Craniospinal Radiation Therapy Procedure.Gels (Basel, Switzerland) · 2022Article
- Impact of Salt on Thermal Stability and Dose Response of the Fricke-XO-Pluronic F-127 3D Radiotherapy Dosimeter.Materials (Basel, Switzerland) · 2022Article
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The development of Fricke gel (FG) dosimeters based on poly(vinyl alcohol) (PVA) as the gelling agent and glutaraldehyde (GTA) as the cross-linker has enabled significant improvements in the dose response and the stability over time of spatial radiation dose distributions. However, a standard procedure for preparing FG in terms of reagent concentrations is still missing in the literature. This study aims to investigate, by means of spectrophotometric analyses, how the sensitivity to the radiation dose and the range of linearity of the dose-response curve of PVA-GTA-FG dosimeters loaded with xylenol orange sodium salt (XO) are influenced by ferrous ammonium sulphate (FAS) and XO concentrations. Moreover, the effect of different concentrations of such compounds on self-oxidation phenomena in the dosimeters was evaluated. PVA-GTA-FG dosimeters were prepared using XO concentrations in the range 0.04-0.80 mM and FAS in the range 0.05-5.00 mM. The optical absorbance properties and the dose response of FG were investigated in the interval 0.0-42.0 Gy. The results demonstrate that the amount of FAS and XO determines both the sensitivity to the absorbed dose and the interval of linearity of the dose-response curve. The study suggests that the best performances of FG dosimeters for spectrophotometric analyses can be obtained using 1.00-0.40 mM and 0.200-0.166 mM concentrations of FAS and XO, respectively.
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