Visible light induced bactericidal

Báo cáo y học: "Positioning Effects of KillerRed inside of Cells correlate with DNA Strand Breaks after Activation with Visible Light"

... duration of activation and the increase of fluorescence intensity inside of the nuclei of DU145 cells Figure visualizes the degree of the DNA damage in nuclei as a result of DNA strand breaks caused ... single strand breaks in the DNA In cells, generally, these toxic effects are eliminated by repair enzymes Poly-(ADP-ribose)-polymerases (PARP) are members of this multi-faced repair enzyme family, ... the cell toxicity by measurements of DNA- strand breaks in cell-clones stably transfected with plasmids expressing KillerRed proteins (e.g pKillerRed-Lamin B1) after activation with white light...

Visible Light Driven Photoelectrochemical Water Oxidation onNitrogen-Modified TiO2Nanowires

... better visible light absorbance, although unfortunately this has not always lead to better water oxidation performance and photocatalytic activity.13,22 However, it is clear that by using a water oxidation ... N-modified TiO2 films Water Oxidation Catalyst for N-Modified TiO2 Nanowire Films In PEC water splitting, the water oxidation half reaction is normally more challenging than water reduction and ... substitutional N species found at 394 eV is likely the main contributor to visible light absorption and changes in the water photo -oxidation performance in the TiO2 nanowire films, as shown in the next...

visible light communication and its fundamental study

... Visible Light Wireless Communication 1.2 Dierence between Visible Light Wireless Communication and Other Wireless Communications 1.3 Conventional Optical Wireless Communication ... transmission in visible light wireless communication using lighting equipment Proposal LED Lighting Equipments First, we design two proposal lighting equipments They are general lighting and downlight ... news and other information The third concentration would be in standard lighting sources such as architectural lighting, aerospace and automotive interior lighting, exit signs and emergency lighting,...

Báo cáo khoa học: Light-induced gene expression of fructose 1,6-bisphosphate aldolase during heterotrophic growth in a cyanobacterium, Synechocystis sp. PCC 6803 ppt

... 5¢-GGAAGAAC CGTGCATTACC-3¢, and labeled with [a- 32P]dCTP using a Megaprime labeling kit (Amersham Pharmacia, Piscataway, NJ, USA) Hybridization signals were detected with a BAS2000 bio-imaging analyzer ... protein Intracellular l-glutamate was assayed by measurement of the concentration of l-glutamate with a l-glutamate determination kit (Yamasa Corp., Chiba, Japan) 2D-PAGE and in- gel digestion The materials ... translation initiation site of the fbaA gene was ampliﬁed with forward primer 5¢-GCTAAAGGAAGTATTTGCTAC-3¢ and reverse primer 5¢-CTGAGTTAACCAAGTCCAGG-3¢ A 134 bp DNA fragment, prom4, corresponding...

Báo cáo khoa học: Light-induced reactions of Escherichia coli DNA photolyase monitored by Fourier transform infrared spectroscopy pot

... difference spectra of DNA photolyase and DNA (A) Oligo-(dT)18 DNA photodamage with UV radiation in the absence of photolyase (B) Photoreactivation of DNA photolyase followed by DNA photorepair (after ... an elucidation of a detailed molecular picture of the light-driven DNA repair process Results Construction of a DNA photolyase E109A mutant MTHF, the second cofactor of E coli DNA photolyase, acts ... photoreduction of the ﬂavin semiquinone radical 1857 FT-IR on DNA photolyase Fig FT-IR difference spectra of DNA photolyase (A, A¢) Photoreduction of DNA photolyase (two different batches of protein)...

Báo cáo '''' A review on the visible light active titanium dioxide photocatalysts for environmental applications " docx

... radical anion, respectively [22] It is clear that photocatalysis implies photon-assisted generation of catalytically active species rather that the action of light as a catalyst in a reaction ... decolorization of the solution was achieved, the formation of active oxidation species and hydrogen peroxide stopped, the oxidation reactions ceased and the concentrations of intermediates remained constant ... gap material can lead to a drastic enhancement of the photostability [174–176] For instance, CdS is a fascinating material with ideal band gap energy for solar and visible light applications (2.4...

the effect of the hydrothermal treatment with aqueous naoh solution on the photocatalytic and photoelectrochemical propertiesof visible light-responsive TiO2thin ﬁlms

... the effect of the hydrothermal treatment on the XRD patterns of Vis-TiO2/Ti The intensity of the peaks due to the rutile phase decreased with an increase in the hydrothermal treatment time, and ... as a function of the hydrothermal treatment time with NaOH aqueous solution These measurements were carried out with a bias of +1.0 V versus SCE in 0.25 M K2SO4 161 aqueous solution The observed ... that of the Vis-TiO2/Ti electrode Thus, it was clearly shown that hydrothermal treatment with NaOH aqueous solution is effective for the improvement of the photoelectrochemical performance of the...

Báo cáo hóa học: " Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light" pot

... conduction band (CB) and the valence band (VB) of WO3 were higher than the CB and VB of TiO2 and fullerene When the hole and electron pairs were also generated and separated on the interface of WO3, ... Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light Nanoscale Research Letters 2011 6:459 Submit your manuscript to a journal and beneﬁt ... effect of fullerene, WO3, and TiO2 Because of the least band gap of fullerene (1.6 to 1.9 eV), hole and electron pairs were generated and separated on the interface of fullerene easily by visible...

Báo cáo hóa học: " Carbon-assisted growth and high visible-light optical reflectivity of amorphous silicon oxynitride nanowires" doc

... al.: Carbon-assisted growth and high visible-light optical reflectivity of amorphous silicon oxynitride nanowires Nanoscale Research Letters 2011 6:469 Submit your manuscript to a journal and ... July 2011 Figure The optical reflectivity and PL spectra of Si-O-N nanowires (a) Reflectivity of Si-O-N nanowire mat and its comparison with literature data of human milk tooth and Cyphochilus beetle ... Massarek I, Offrein BJ: Silicon oxynitride layers for optical waveguide applications J Electrochem Soc 2000, 147:2237-2241 Wörhoff K, Hilderink LTH, Driessen A, Lambeck PV: Silicon oxynitride: ...

Báo cáo hóa học: " CdSe/TiO2 core-shell nanoparticles produced in AOT reverse micelles: applications in pollutant photodegradation using visible light" doc

... this article as: Fontes Garcia et al.: CdSe/TiO2 core-shell nanoparticles produced in AOT reverse micelles: applications in pollutant photodegradation using visible light Nanoscale Research Letters ... CdSe and TiO2 in the prepared nanoparticles This effect has been reported in the photoreduction of methyl viologen by CdSe and TiO nanoparticles confined in the aqueous pools of AOT reversed micelles ... Figure 4, the photodegradation of MB effected by the prepared CdSe/TiO2 core shell nanoparticles is shown The fraction of the remaining MB in each irradiation time is obtained by subtracting the background...

Báo cáo hóa học: "Synthesis and Visible-Light Photocatalytic Property of Bi2WO6 Hierarchical Octahedron-Like Structures" pot

... (inset of Fig 5), which is suitable for photocatalytic decomposition of organic contaminants under visible-light irradiation Next, we study the photocatalytic property of Bi2WO6 hierarchical octahedron-like ... hydrothermal synthesis of a novel hierarchical octahedron-like structure of Bi2WO6, which has an average size of *4 lm and consists of many quasi-square nanosheets The effect of pH value of the precursor ... to octahedron-like hierarchical structures composed of both parallel and vertical plates For the assembly of such unique microstructures, the function of PVP and the crystal structure of Bi2WO6...

Báo cáo hóa học: " Photocatalytic Degradation of Isopropanol Over PbSnO3 Nanostructures Under Visible Light Irradiation" potx

... energies of various crystallographic surfaces to promote selective anisotropic growth of nanocrystals [21] Photocatalytic Degradation of IPA The photocatalytic activities of the PbSnO3 nanostructures ... dependence of the rate of acetone evolution from IPA degradation over PbSnO3 nanoparticles was investigated by using different cutoff ﬁlters, as shown in Fig The intensity variation of the incident light ... mineralization under visible light irradiation Under visible light irradiation, gaseous IPA was gradually oxidized through an acetone intermediate to CO2, and the concentration changes of IPA, acetone,...

Báo cáo khoa học: "Mechanism of UV light-induced photorelaxation in isolated rat aorta" pdf

... light-induced photorelaxation, in a concentration dependent manner Mechanism of UV light-induced photorelaxation in isolated rat aorta 83 Fig Effects of UV light irradiation on vascular relaxation of rat ... determine which isoform acts as messenger in UV light-induced photorelaxation, Ca2+-free and Ca2+channel blocker, verapamil were introduced in rat aortas The magnitude of potentiation of UV light-induced ... as messenger in UV light-induced photorelaxation, Ca2+-free and Ca2+channel blocker, verapamil were introduced in rat aortas The magnitude of the potentiation of UV light-induced photorelaxation...

báo cáo khoa học: " Cold- and light-induced changes in the transcriptome of wheat leading to phase transition from vegetative to reproductive growth" pot

... broad overview of the behaviour of the wheat transcriptome to winter conditions and this has provided many interesting clues to the interaction of the several pathways involved in phase transition ... conditions, these photoreceptors contribute to the initiation of flowering through the stabilisation of the CO protein [37] Of the principal photoreceptors, only three, TaCRY2, TaPHYA and TaPHYC, ... relationship to each other in circadian cycling In crown tissue, transcript of TaLHY increased in abundance and then declined; conversely, that of TaTOC1 declined and later increased The profile for...

Development of bismuth based visible light driven photocatalysts for the degradation of organic pollutants

... where χ is the electronegativity of the semiconductor which is taken as the geometric mean of the electronegativities of the component elements of the semiconductor, Ee is the energy of the free ... XII Summary Organic pollutants becomes a pervasive threat with the step forward of human beings Photocatalysis is an effective method for the degradation of organics Since visible light is much ... process The oxidative degradation of most organic pollutants by O2 is thermodynamically favorable, i.e the overall degradation reaction is exothermic However, the uncatalyzed reactions of triplet...

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