Development and dosimetric evaluation of radiochromic PCDA vesicle gel dosimeters

Fu, Yuchuan; Hu, Jiaxi; Hao, Na; Huang, Wen; Jiang, Bo

doi:10.1016/j.radmeas.2015.12.037

Cited by 11 publications

(16 citation statements)

References 28 publications

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“…12,26,27 The commercially important diacetylene, 10,12-pentacosadiynoic acid (PCDA, 1), is used to provide a colourimetric change in practical chemosensors, [28][29][30][31][32][33] biosensors, 24,[34][35][36] and dosimeters. [37][38][39][40] Although PCDA is somewhat photoreactive, further tuning of its photoresponse is of considerable interest, especially for radiation dosimetry applications. Covalent modication offers a viable strategy to PCDA analogues with a tuned photoresponse.…”

Section: Introductionmentioning

confidence: 99%

The crystal engineering of radiation-sensitive diacetylene cocrystals and salts

et al. 2020

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Section: Introductionmentioning

confidence: 99%

The crystal engineering of radiation-sensitive diacetylene cocrystals and salts

et al. 2020

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“…The energy range below 0.01 MeV photoelectric absorption is the dominant process. Since, it is directly proportional to Z [4][5] AMPS, PAGAT and soft tissue has slightly higher Zeff at this energy due to presence of high Z elements such as P, Cl, S, Na and K. Although water does not have any high Z component, it still has higher Zeff than PMMA at low energy region because of the presence of large proportion of oxygen in water. The reason for the rapid fall of Zeff in intermediate energy (0.01 to 0.1 MeV), is that the photoelectric absorption does not dominate photon interaction after a few hundred keV.…”

Section: Resultsmentioning

confidence: 95%

“…Most of the polymer gel dosimeters are fabricated by radiosensitive monomers in gelatin matrix under normal atmospheric conditions [1][2][3][4][5]. Upon irradiation, free radicals are generated in the gel medium making the monomers active.…”

Section: Introductionmentioning

confidence: 99%

Energy Dependent Effective Atomic Number Calculation for Newly Developed 2-Acrylamido-2-methyl propane Sulfonic Acid Polymer Gel Dosimeter

Sathiyaraj¹,

Samuel²

2017

Asian J. Chem.

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The aim of the study is to evaluate the water equivalency of the newly developed polymer gel dosimeter [2-acrylamido-2-methyl propane sulfonic acid (AMPS)] in terms of its effective atomic number (Zeff) and effective electron density (Neff). Auto-Zeff computer program was used to calculate the Zeff for photon energies ranging from 0.01 to 1000 MeV. 2-Acrylamido-2-methyl propane sulfonic acid polymer gel shows the good water equivalency with less than 1.56 % deviation from water over the energy range of 0.01 to 1000 MeV. Since 2-acrylamido-2-methyl propane sulfonic acid is less toxic and a very good water equivalent medium for photon energies from 0.01 to 1000 MeV it can be employed in clinically. The study also reveals that it is a good alternative gel for poly acrylamide gelatin tetrakis hydroxyl phosphonium chloride (PAGAT) in terms of its less toxicity and water equivalency.

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“…163 An alternative to 2D radiochromic films is the utilization of 3D PCDA gel dosimeters, which display a linear irradiation response in the dose range of 2−100 Gy. 165 The gel dosimeters are prepared through the dispersion of selfassembled nanovesicles of PCDA into a gel matrix (Figure 43). In comparison to existing 3D dosimeters, 166,167 the PCDA gel system provides excellent tissue equivalence, has high spatial resolution and dose accuracy, and does not exhibit any dose rate, energy, or temperature dependent effects.…”

Section: ■ Introductionmentioning

confidence: 99%

Properties and Applications of Stimuli-Responsive Diacetylenes

Hall

Musa

Steed

2021

Crystal Growth & Design

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The topochemical reactivity of diacetylene monomers has long been established and involves the 1,4-addition polymerization reaction. This reaction is governed by well-defined parameters that allow the synthesis of diacetylene polymers. Polydiacetylenes are conjugated polymers that display unique colorimetric and fluorescent transitions when they are exposed to a range of stimuli, allowing them to be easily exploited in biosensors, chemosensors, and radiochromic dosimeters. In this review, we summarize recent work on polydiacetylene systems, focusing on examples involving 10,12-pentacosadiynoic acid (PCDA) that can be structured as polymerized vesicles, films, gels, and powders. Synthetic derivatives of PCDA are also reviewed, along with the effect of incorporating guest molecules to a diacetylene system and establishing the important relationship between reversible thermochromism and noncovalent interactions.

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Development and dosimetric evaluation of radiochromic PCDA vesicle gel dosimeters

Cited by 11 publications

References 28 publications

The crystal engineering of radiation-sensitive diacetylene cocrystals and salts

The crystal engineering of radiation-sensitive diacetylene cocrystals and salts

Energy Dependent Effective Atomic Number Calculation for Newly Developed 2-Acrylamido-2-methyl propane Sulfonic Acid Polymer Gel Dosimeter

Properties and Applications of Stimuli-Responsive Diacetylenes

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