نتایج جستجو برای: photo activity
تعداد نتایج: 1160458 فیلتر نتایج به سال:
SYNOPSIS: Coupling photo- and thermo- catalytic CO 2 hydrogenation is a promising way to convert with higher sustainability. Herein, the redox pathway demonstrated as main reaction for at 200 °C over Au/TiO . The plasmonic enhancement mechanism proven be facilitated oxygen vacancy generation. • Plasmon enhances production rate by ? 318 % Redox CO. DRIFTS analyses prove spontaneous dissociation ...
Catalytic and catalytic photo-assisted hydration of propene to form 2-propanol in gas-solid regime at atmospheric pressure and 85 °C were carried out by using a heteropolyacid (POM) supported on different oxides. Binary materials were prepared by impregnation of H3PW12O40 on different commercial and home prepared supports (TiO2, SiO2, WO3, ZrO2, ZnO, Al2O3). Some of the composites were active b...
Photodynamic therapy (PDT) uses photosensitizers (PS) which only become cytotoxic upon light-irradiation. Transition-metal complexes are highly promising PS due to long excited-state lifetimes, and high photo-stabilities. However, these complexes usually absorb higher-energy UV/Vis light, whereas the optimal tissue transparency is in the lower-energy NIR region. Two-photon excitation (TPE) can ...
Increased interest in clinical application of photodynamic therapy (PDT) in various medical fields poses a demand for better understanding of processes triggered by photo-treatment. Most of the work on PDT performed so far has focused on the immediate effects of photo-treatment. It is generally accepted that cellular damage occurs during light exposure and within a short period thereafter. If c...
A new photo-reactive polymer, polyvinylalcohol modified with phenylazido groups, was synthesized as a microarray matrix. The polymer is soluble in water and spin-coated onto glass plate. Aqueous solutions of proteins were micro-spotted onto the coated glass and were fixed by ultraviolet light irradiation. Subsequently, cell adhesion on the photo-immobilized protein microarray was investigated. ...
Proposed cosmological surveys will make use of photometric redshifts of galaxies that are significantly fainter than any complete spectroscopic redshift surveys that exist to train the photo-z methods. We investigate the photo-z biases that result from known differences between the faint and bright populations: a rise in active galactic nucleus (AGN) activity toward higher redshift, and a metal...
مقاله تصویری (Photo Essay) دکتر مریم آلطه: استادیار- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی دکتر حمید فاتح مقدم: دستیار چشمپزشکی- دانشگاه علوم پزشکی شهید بهشتی دکتر حمیدرضا حسنی: فلوشیپ قرنیه- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی تهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم این مقاله در نشریه "Journal of Ophthalmology and Visi...
دکتر امیررضا کهرکبودی: دستیار- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی دکتر مسعود سهیلیان: استاد- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی دبیر مسوول: دکتر مسعود سهیلیان- استاد- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی وجود مایع پرفلوروکربن زیرشبکیهای در ناحیه ماکولا متعاقب جراحی ویترکتومی معرفی بیمار مرد 70 سالهای به دلیل جداشدگی رگماتوژن شبکیه ناشی از سودوفاکی در چشم چپ...
مقاله تصویری (Photo Essay) دکتر مسعود صالحیپور: فلوشیپ زجاجیه و شبکیه- دانشگاه علوم پزشکی شهید بهشتی دکتر مسعود سهیلیان: استاد- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی دبیر مسوول: دکتر مسعود سهیلیان- استاد- چشمپزشک- دانشگاه علوم پزشکی شهید بهشتی AZOOR (Acute Zonal Occult Outer Retinopathy) معرفی بیمار مرد 53 سالهای با سابقه کاهش دید هر دو چشم از 4 سال قبل مراجعه نمو...
We have developed a unique photo-cross-linking approach for immobilizing a variety of small molecules in a functional-group-independent manner. Our approach depends on the reactivity of the carbene species generated from trifluoromethylaryldiazirine upon UV irradiation. It was demonstrated in model experiments that the photogenerated carbenes were able to react with every small molecule tested,...
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