نتایج جستجو برای: small sensitizers

تعداد نتایج: 788868  

2013
Ran Liu Cuiyun Jin Fengjuan Song Jing Liu

The conductivity and permittivity of tumors are known to differ significantly from those of normal tissues. Electrical impedance tomography (EIT) is a relatively new imaging method for exploiting these differences. However, the accuracy of data capture is one of the difficult problems urgently to be solved in the clinical application of EIT technology. A new concept of EIT sensitizers is put fo...

Journal: :Chemical communications 2008
Sanghoon Kim Duckhyun Kim Hyunbong Choi Moon-Sung Kang Kihyung Song Sang Ook Kang Jaejung Ko

Organic dyes with long alkyl chains have been synthesized and demonstrated to be highly efficient sensitizers for liquid and quasi-solid-state solar cells, giving power conversion efficiencies of 8.31-8.39% and 7.03-7.31% under AM 1.5 G irradiation, respectively.

Journal: :Chemical communications 2005
Hideaki Saito J Sivaguru Steffen Jockusch Yoshihisa Inoue Waldemar Adam Nicholas J Turro

Oxazolidinone-functionalized enecarbamates undergo diastereoselective E/Z photoisomerization upon direct and triplet sensitized irradiations with chiral/achiral sensitizers, showing that the enhanced product diastereoselectivity depends on the solvent and temperature.

Journal: :Annals of medicine 1994
D I Rosenthal E Glatstein

This is a review of photodynamic therapy, which is a classic binary system involving the use of a photosensitizer and light of very specific wavelength, consistent with the absorption characteristics of that sensitizer. As a binary system, its effects are almost entirely limited to tumour cells, but the major drawback is its limited penetration because it utilizes physical light within the visi...

2014
Astrid Veronika Rauch Lena ter Horst Victoria Gabriele Paul Jochen Bauer Udo Dannlowski Carsten Konrad Patricia Ohrmann Harald Kugel Boris Egloff Volker Arolt Thomas Suslow

BACKGROUND Coping plays an important role for emotion regulation in threatening situations. The model of coping modes designates repression and sensitization as two independent coping styles. Repression consists of strategies that shield the individual from arousal. Sensitization indicates increased analysis of the environment in order to reduce uncertainty. According to the discontinuity hypot...

Journal: :Photochemistry and photobiology 2002
Joanna Fiedor Leszek Fiedor Nina Kammhuber Avigdor Scherz Hugo Scheer

Bacteriochlorophyll (BChl) derivatives (with central Mg replaced by metal "M") ([M]-BChl with M = 2H, Mg, Zn, Pd, Cu) have been investigated for their photodynamic capacity and stability toward photodegradation in organic solvents and aqueous micellar solution. A protocol has been developed for screening new sensitizers. BChl and [Zn]-BChl are efficient sensitizers, but they are also quickly de...

Journal: :Journal of the American Chemical Society 2006
Sanghoon Kim Jae Kwan Lee Sang Ook Kang Jaejung Ko J-H Yum Simona Fantacci Filippo De Angelis D Di Censo Md K Nazeeruddin Michael Grätzel

Novel organic sensitizers comprising donor, electron-conducting, and anchoring groups were engineered at molecular level and synthesized. The functionalized unsymmetrical organic sensitizers 3-{5-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-thiophene-2-yl}-2-cyano-acrylic acid (JK-1) and 3-{5'-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-2,2'-bisthiophene-5-yl}-2-cyano-acrylic acid (JK-2), upon anc...

2006
Dietmar W. Siemann Sharon Morrissey Karen Wolf

Recent studies in mouse tumor systems have indicated a potential therapeutic advantage in combining the radiosensitizer misonidazole (MISO) with cancer chemotherapy drugs. One agent the antitumor activity of which has been enhanced to a greater extent than its hematological or gastrointestinal toxicities is the nitrosourea, 1-(2-chloroethyl)-3-cyclohexyl-1nitrosourea (CCNU). Recently, sensitize...

2010
Rahmatollah Rahimi Mahboube Rabbani Rahim Rahimi Morteza Moghimi Waskasi

Dye sensitized solar cells (DSSCs) are currently attracting widespread academic and commercial interest for the conversion of sunlight into electricity because of their low cost and high DSSCs are similar to natural photosynthesis in the initial processes involving in light-harvesting and charge separation. To gain a better understanding of the role of the sensitizer, particularly of its electr...

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