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Effects of Solar UV Radiation on Morphology and Photosynthesis of Filamentous Cyanobacterium Arthrospira platensis
- Hongyan Wu, K. Gao, V. Villafañe, T. Watanabe, E. W. Helbling
- Biology, Medicine
- Applied and Environmental Microbiology
- 1 September 2005
ABSTRACT To study the impact of solar UV radiation (UVR) (280 to 400 nm) on the filamentous cyanobacterium Arthrospira (Spirulina) platensis, we examined the morphological changes and photosynthetic… Expand
Utilization of solar UV radiation by coastal phytoplankton assemblages off SE China when exposed to fast mixing
During May 2002 we carried out studies with tropical phytoplankton assemblages from coastal waters off SE China to assess the combined effects of solar UV radiation (UVR, 280 to 400 nm) and mixing… Expand
Synthesis of uridine phosphoramidite analogs: reagents for site-specific incorporation of photoreactive sites into RNA sequences.
The synthesis of three new photoactive RNA phosphoramidites, 5-bromouridine, 5-iodouridine, and O4-triazolouridine, is reported. The 5' OH of bromouridine and iodouridine were protected as… Expand
Polyethyleneimine modified fluorescent carbon dots and their application in cell labeling.
- Baofu Han, Wen-xing Wang, +4 authors Shukun Xu
- Chemistry, Medicine
- Colloids and surfaces. B, Biointerfaces
- 1 December 2012
Fluorescent carbon dots (CDs) were solvothermaly synthesized in water-glycol medium by using glucose as carbon source and then modified with polyethyleneimine (PEI) for the first time to improve… Expand
Responses of a marine red tide alga Skeletonema costatum (Bacillariophyceae) to long-term UV radiation exposures.
- Hongyan Wu, K. Gao, H. Wu
- Biology, Medicine
- Journal of photochemistry and photobiology. B…
- 9 February 2009
UV radiation (280-400 nm) is known to affect phytoplankton in negative, neutral and positive ways depending on the species or levels of irradiation energy. However, little has been documented on how… Expand
Comparison on mechanical properties and microstructure of a C–Mn–Si steel treated by quenching and partitioning (Q&P) and quenching and tempering (Q&T) processes
Abstract A steel containing Fe–0.20C–1.57Mn–1.55Si–0.0029P–0.0018S (wt%) was treated by quenching and partitioning (Q&P) and quenching and tempering (Q&T) process. The resulted mechanical properties… Expand
Photosynthetically active radiation interacts with UVR during photoinhibition and repair in the cyanobacterium Arthrospira platensis (Cyanophyceae)
Abstract: Cultures of Arthrospira platensis were exposed to ultraviolet (UV, 280–400 nm, 7.9 W m−2) radiation alone, or ultraviolet radiation (UVR) supplemented with different levels of… Expand
Solvothermal synthesis of green-fluorescent carbon nanoparticles and their application
Abstract A novel solvothermal approach to synthesize green-fluorescent carbon nanoparticles (CNPs) was developed using l -ascorbic acid as the carbon source, glycol and triple distilled water as the… Expand
The effects of nano-SiO2 additive on the zinc phosphating of carbon steel
Abstract In this paper, nano-SiO2 was used as an accelerator for improving the microstructure and the corrosion resistance of phosphate coating on carbon steel. The chemical composition and… Expand
Strong ultraviolet and violet emissions from ZnO/TiO2 multilayer thin films
Abstract ZnO/TiO2 multilayer thin films were prepared by electron beam evaporation and the influence of annealing temperature on their structural and optical properties was investigated. The analyses… Expand