scholarly journals Ultraviolet-B persistent luminescence and thermoluminescence of bismuth ion doped garnet phosphors

2020 ◽  
Vol 10 (5) ◽  
pp. 1296 ◽  
Author(s):  
Hongxu Sun ◽  
Qingqing Gao ◽  
Aiying Wang ◽  
Yichun Liu ◽  
Xiao-jun Wang ◽  
...  
Keyword(s):  
Ultraviolet B ◽  
Persistent Luminescence

Sunlight-activated long persistent luminescence in the ultraviolet-B from Bi3+-doped garnet phosphors for covert optical tagging

2021 ◽  
Author(s):  
Jingwei Liu ◽  
Yanjie Liang ◽  
Shao Yan ◽  
Dongxun Chen ◽  
Shihai Miao ◽  
...  
Keyword(s):  
Ultraviolet B ◽  
Great Promise ◽  
Luminescent Materials ◽  
Persistent Luminescence

Ultraviolet (UV) luminescent materials hold great promise for applications across a wide number of fields, whether environmental, biological or medical. However, luminescent materials with the capability to continue emitting UV...

Narrowband ultraviolet-B persistent luminescence from (Y,Gd)3Ga5O12:Bi3+ phosphors for optical tagging application

2021 ◽  
Author(s):  
Jingwei Liu ◽  
Yanjie Liang ◽  
Shao Yan ◽  
Dongxun Chen ◽  
Shihai Miao ◽  
...  
Keyword(s):  
Spectral Region ◽  
Ultraviolet B ◽  
Spectral Features ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Potential Applications

Luminescent materials that emit in the narrowband ultraviolet-B (NB-UVB; 310–313 nm) spectral region have attracted considerable attention due to their unique spectral features, which endow them with great potential applications...

Gd3+-activated narrowband ultraviolet-B persistent luminescence through persistent energy transfer

2021 ◽  
Author(s):  
Xianli Wang ◽  
Yafei Chen ◽  
Peter A. Kner ◽  
Zhengwei Pan
Keyword(s):  
Energy Transfer ◽  
Narrow Band ◽  
Ultraviolet B ◽  
Persistent Luminescence ◽  
Ultraviolet C

Gd3+-activated narrow-band ultraviolet-B persistent phosphors can be developed from Pr3+-, Pb2+- or Bi3+-activated ultraviolet-C or ultraviolet-B persistent phosphors through persistent energy transfer.

Topical application of solubilized Reseda luteola extract inhibits ultraviolet B-induced inflammation in human volunteers in vivo

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
F Casetti ◽  
W Jung ◽  
U Wölfle ◽  
J Reuter ◽  
K Neumann ◽  
...  
Keyword(s):  
Topical Application ◽  
Ultraviolet B ◽  
Human Volunteers

White clover sensitivity to UV-B radiation - biochemical relationships and interaction with drought

2003 ◽  
pp. 273-277
Author(s):  
R.W. Hofmann ◽  
B.D. Campbell ◽  
E.E. Swinny ◽  
S.J. Bloor ◽  
K.R. Markham ◽  
...  
Keyword(s):  
New Zealand ◽  
White Clover ◽  
Ultraviolet B ◽  
Summer Drought ◽  
Stress Protection ◽  
Trade Offs ◽  
Population Comparisons ◽  
Potential Benefits ◽  
Quercetin Glycosides ◽  
Balance Trade

During summertime in New Zealand, white clover experiences high levels of ultraviolet-B (UV-B) radiation. This frequently coincides with periods of summer drought. We investigated responses to UV-B and to the combination of UV-B and drought in various white clover populations, including New Zealand cultivars and ecotypes as well as overseas germplasm. The results were obtained under controlled environmental conditions in three independent trials. Overall, white clover growth was reduced by UV-B. The population comparisons indicated that low growth rate and adaptation to other forms of stress may be related to UV-B tolerance under well-watered conditions, but not during extended periods of drought. Flavonoid pigments that are involved in stress protection were strongly increased under UV-B and were further enhanced in the combination of UV-B and drought. The responses among these flavonoids were highly specific, with more pronounced UV-B-induced increases in quercetin glycosides, compared to their closely related kaempferol counterparts. UV-B toler ance of the less productive white clover populations was linked to the accumulation of quercetin compounds. In conclusion, these studies suggest (i) that slow-growing white clover ecotypes adapted to other stresses have higher capacity for biochemical acclimation to UV-B under well-watered conditions and (ii) that these biochemical attributes may also contribute to decreased UV-B sensitivity across white clover populations under drought. The findings alert plant breeders to potential benefits of selecting productive germplasm for high levels of specific flavonoids to balance trade-offs between plant productivity and stress tolerance. Keywords: Drought, flavonoids, genetic variation, HPLC, kaempferol, quercetin, str ess, Trifolium repens L., ultraviolet-B, white clover

Activation of HIV in Human Skin by Ultraviolet B Radiation and its Inhibition by NFκB Blocking Agents¶

2001 ◽  
Vol 74 (6) ◽  
pp. 805 ◽  
Author(s):  
Joan Breuer-McHam ◽  
Eric Simpson ◽  
Irene Dougherty ◽  
Makoto Bonkobara ◽  
Kiyoshi Ariizumi ◽  
...  
Keyword(s):  
Human Skin ◽  
Ultraviolet B ◽  
Ultraviolet B Radiation ◽  
Blocking Agents
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