Enhancement of dose response and nuclear magnetic resonance image of PAGAT polymer gel dosimeter by Adding Silver Nanoparticles

Rahim Sabbaghizadeh, Roslinda Shamsudin, Najmeh Deyhimihaghighi, Arman Sedghi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the present study, the normoxic polyacrylamide gelatin and tetrakis hydroxy methyl phosphoniun chloride (PAGAT) polymer gel dosimeters were synthesized with and without the presence of silver (Ag) nanoparticles. The amount of Ag nanoparticles varied from 1 to 3 ml with concentration 3.14 g/l, thus forming two types of PAGAT polymer gel dosimeters before irradiating them with 6 to 25 Gy produced by 1.25-MeV 60Co gamma rays. In this range, the predominant gamma ray interaction with matter is by Compton scattering effect, as the photoelectric absorption effect diminishes. MRI was employed when evaluating the polymerization of the dosimeters and the gray scale of the MRI film was determined via an optical densitometer. Subsequent analyses of optical densities revealed that the extent of polymerization increased with the increase in the absorbed dose, while the increase of penetration depth within the dosimeters has a reverse effect. Moreover, a significant increase in the optical density-dose response (11.82%) was noted for dosimeters containing 2 ml Ag nanoparticles.

Original languageEnglish
Article number0168737
JournalPLoS One
Volume12
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

nanosilver
Dosimeters
nanoparticles
Silver
polymerization
Nanoparticles
absorbance
dose response
gamma radiation
nuclear magnetic resonance spectroscopy
polymers
Polymers
Magnetic Resonance Spectroscopy
methyl chloride
Gels
Nuclear magnetic resonance
gels
densitometers
absorbed dose
polyacrylamide

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Enhancement of dose response and nuclear magnetic resonance image of PAGAT polymer gel dosimeter by Adding Silver Nanoparticles. / Sabbaghizadeh, Rahim; Shamsudin, Roslinda; Deyhimihaghighi, Najmeh; Sedghi, Arman.

In: PLoS One, Vol. 12, No. 1, 0168737, 01.01.2017.

Research output: Contribution to journalArticle

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