Effect of UV radiation on the structure of graphene oxide in water and its impact on cytotoxicity and As(III) adsorption

Polymer–matrix composites degrade under the influence of UV radiation in the range of the 290–400 nm band. The degradation of polymer–matrix composites exposed to UV radiation is characterized by extensive aging of the epoxy matrix, resulting in deterioration of their mechanical properties. Glass fibers/epoxy resin composites were made by an out-of-autoclave method whereas a fiber optic sensor was placed between different layers of laminates. In our work, we used a fiber Bragg grating sensor covered with graphene oxide and embedded in a polymer matrix composite to monitor UV radiation intensity. Measurements of UV radiation may allow monitoring the aging process of individual components of the polymer composite. In order to estimate the number of microcracks of epoxy resin, microstructure observations were carried out using a scanning electron microscope.

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Ag-Ag2S/reduced graphene oxide hybrids used as long-wave UV radiation emitting nanocomposites

Optical Materials ◽

10.1016/j.optmat.2017.06.059 ◽

2017 ◽

Vol 72 ◽

pp. 529-532 ◽

Cited By ~ 5

Author(s):

Wenyao Li ◽

Ruoyu Xu ◽

Min Ling ◽

Guanjie He

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Uv Radiation ◽

Long Wave ◽

Reduced Graphene

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Effect of the graphene oxide reduction method on the photocatalytic and electrocatalytic activities of reduced graphene oxide/TiO2 composite

RSC Advances ◽

10.1039/c5ra13065d ◽

2015 ◽

Vol 5 (88) ◽

pp. 71988-71998 ◽

Cited By ~ 14

Author(s):

H. Al-Kandari ◽

A. M. Abdullah ◽

S. Al-Kandari ◽

A. M. Mohamed

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Uv Radiation ◽

Reduction Method ◽

Oxide Reduction ◽

Reduced Graphene

LSVs (50 mV s−1) for hydrogen-reduced graphene oxide/TiO2 composite in (i & ii) oxygen and (iii & iv) argon-saturated 0.5 M H2SO4 at 25 °C in the presence (ii & iv) and absence (i & iii) of 300 watt UV radiation.

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Neutrophil Myeloperoxidase Destruction by Ultraviolet Irradiation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100102778 ◽

1988 ◽

Vol 46 ◽

pp. 138-139

Author(s):

J. Hanker ◽

B. Giammara ◽

G. Strauss

Keyword(s):

Uv Radiation ◽

Myeloid Leukemia ◽

Stratospheric Ozone ◽

Psoriasis Patient ◽

Whole Body ◽

Human Neutrophils ◽

Cupric Nitrate ◽

The Earth ◽

Routine Handling ◽

Uvb Phototherapy

Only a fraction of the UV radiation emitted by the sun reaches the earth; most of the UVB (290-320nm) is eliminated by stratospheric ozone. There is increasing concern, however, that man-made chemicals are damaging this ozone layer. Although the effects of UV on DNA or as a carcinogen are widely known, preleukemia and acute myeloid leukemia (AML) have only rarely been reported in psoriasis patients treated with 8-methoxypsoralen and UV (PUVA). It was therefore of interest to study the effects of UV on the myeloperoxidase (MP) activity of human neutrophils. The peroxidase activity of enriched leukocyte preparations on coverslips was shown cytochemically with a diaminobenzidine medium and cupric nitrate intensification.Control samples (Figs. 1,4,5) of human bloods that were not specifically exposed to UV radiation or light except during routine handling were compared with samples which had been exposed in one of several different ways. One preparation (Fig. 2) was from a psoriasis patient who had received whole-body UVB phototherapy repeatedly.

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