نتایج جستجو برای: sensitizers

تعداد نتایج: 1747  

بیطرفان رجبی, احمد, جدیدی, مجید, حسن زاده, هادی, دربندی آذر, امیر, رضایی طاویرانی, مصطفی, سمنانی, وحید, معصومی, حامد, نصر, رضا, نیکوفر, علیرضا,

Background and purpose: Among different cancers, breast cancer has a high prevalence among women and radiotherapy is used as a treatment modality in which radio sensitizers are used to increase its efficiency. Nanoparticles are such sensitizers that enhance the efficiency of radiotherapy via creation of free radicals and induction of oxidative stress. This study aimed at evaluating the synergis...

Journal: :Chemical communications 2005
Anne L Boreen Kristopher McNeill

2,4-Dichlorobenzoic acid and a suite of models of chlorinated biphenyl carboxylic acids were found to be efficient sensitizers of the reactive oxygen species singlet oxygen (1O2).

Journal: :Physical chemistry chemical physics : PCCP 2016
Gareth H Summers Jean-François Lefebvre Fiona A Black E Stephen Davies Elizabeth A Gibson Tönu Pullerits Christopher J Wood Karel Zidek

Correction for 'Design and characterisation of bodipy sensitizers for dye-sensitized NiO solar cells' by Gareth H. Summers et al., Phys. Chem. Chem. Phys., 2016, DOI: 10.1039/c5cp05177k.

Journal: :Chemical communications 2008
Xizhe Liu Rui Zhu Yong Zhang Bin Liu Seeram Ramakrishna

Anionic polyfluorene and oligofluorene derivatives were synthesized and utilized as organic dye sensitizers in dye sensitized solar cells to show a maximum power conversion efficiency of 1.39%.

Journal: :ACS energy letters 2021

Photon upconversion via triplet–triplet annihilation has the potential to improve performance of photovoltaics, as additional sub-bandgap photons can be harnessed. Recently, bulk metal halide perovskite materials have been introduced triplet sensitizers, resulting in near-infrared-to-visible when coupled annihilator rubrene. Perhaps most excitingly, layer absorb up 60% incident light at wavelen...

Journal: :Photodiagnosis and photodynamic therapy 2013
Mafalda Laranjo Arménio C Serra Margarida Abrantes Marta Piñeiro Ana C Gonçalves João Casalta-Lopes Lina Carvalho Ana B Sarmento-Ribeiro António Rocha-Gonsalves Filomena Botelho

BACKGROUND Photodynamic therapy (PDT) is a therapeutic modality capable of inducing cell death by oxidative stress through activation of a sensitizer by light. Aryl-porphyrin with hydroxyl groups are good photosensitizers and presence of bromine atoms can enhance the photodynamic activity through heavy atom effect. These facts and our previous work made pertinent to compare the photodynamic cap...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2008
Andreas Natsch Roger Emter

Tests for skin sensitization are required prior to the market launch of new cosmetic ingredients and in vitro tests are needed to replace the current animal tests. Protein reactivity is the common feature of skin sensitizers and it is a crucial question whether a cellular in vitro assay can detect protein reactivity of diverse test chemicals. The signaling pathway involving the repressor protei...

Journal: :Canadian respiratory journal 2008
Ahmet Demir Lawrence Joseph Margaret R Becklake

BACKGROUND Occupational exposures are an important cause of adult-onset asthma but the population attributable risk percentage (PAR%) has been less frequently studied. OBJECTIVES To examine the distribution and determinants of adult asthma in six centres across Canada using data gathered in a community-based study. METHODS Data were gathered in a community survey of 2959 adults using the Eu...

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