Results 81 to 90 of about 40,842 (301)

Approach to Access Benzo[j]phenanthridinones from 1,7-Enynes and Aryldiazonium Salts via a Domino Radical Relay Process Enabled by a P/N-Heteroleptic Cu(I)-Photosensitizer

A mild approach for the synthesis of benzo­[j]­phenanthridin-6­(5H)-one derivatives from 1,7-enynes and aryldiazonium salts has been successfully developed involving a domino radical relay process enabled by a heteroleptic Cu­(I)-photosensitizer under ...
Qibo Ni (16876933), Sicheng Zhou (6062681), Yan Zhou (6523), Qian Liu (135614), Yunkui Liu (1574917), Siwei Xiang (5702465), Huihui Wang (442901)   +6 more
core   +1 more source

Wireless sequential dual light delivery for programmed PDT in vivo

Light: Science & Applications
Using photodynamic therapy (PDT) to treat deep-seated cancers is limited due to inefficient delivery of photosensitizers and low tissue penetration of light. Polymeric nanocarriers are widely used for photosensitizer delivery, while the self-quenching of
Jiayi Liu, Bowen Sun, Wenkai Li, Han-Joon Kim, Shu Uin Gan, John S. Ho, Juwita Norasmara Bte Rahmat, Yong Zhang   +7 more
doaj   +1 more source

Recent Approaches towards the Development of Ru(II) Polypyridyl Complexes for Anticancer Photodynamic Therapy

CHIMIA, 2021
Photodynamic therapy (PDT) is a remarkable alternative or complementary technique to chemotherapy, radiotherapy or immunotherapy to treat certain forms of cancer.
Albert Gandioso, Kallol Purkait, Gilles Gasser   +2 more
doaj   +1 more source

Helicalization of Covalent Organic Framework Nanofibers with Amplified Spin Polarizability for Boosting Photocatalytic Hydrogen Evolution

Advanced Science, EarlyView.
A non‐covalent chirality‐induced strategy via chiral solvents is presented to synthesize helical 2D COF nanofibers with high crystallinity, high chirality, and high spin polarization. The helical structure enhances the concentration of photogenerated charges, suppresses exciton recombination, and extends carrier lifetimes, thereby significantly ...
Qi Zhong, Yongtu Tian, Yutao Sang, Changchun Wang, Jia Guo   +4 more
wiley   +1 more source

A Self-Oxygenating Photosensitizer Enhances Photodynamic Antibacterial Therapy In Periodontitis

International Dental Journal
Aim or purpose: There is reduced antibacterial efficacy in hypoxic microenvironments for existing photosensitizers exhibit. So, we designed a photosensitizer with catalytic oxygen-generation properties to enhance the therapeutic effect of antibacterial ...
Liu Yi, Shen Daonan, Ding Yi
doaj   +1 more source

Trifluoromethyl Boron Dipyrromethene Derivatives as Potential Photosensitizers for Photodynamic Therapy

Molecules, 2018
In this study, two novel boron dipyrromethene-based photosensitizers (BDP3 and BDP6) substituted with three or six trifluoromethyl groups have been synthesized and characterized with various spectroscopic methods, and their photo-physical, photo-chemical,
Jian-Yong Liu, Peng-Zhen Zhou, Jia-Lin Ma, Xiao Jia   +3 more
doaj   +1 more source

Substrate‐Affinitive P‐Type Azapolycyclic Photosensitizer for Chemoselective Nitrilization Under Mild Conditions

Advanced Science, EarlyView.
We developed a series of quinoxalinoquinoxaline (QQ) photosensitizers featuring high and tunable excited‐state reduction potentials (E(PC•+/PC*) = –1.76 to –2.05 V vs. SCE). Their hydrogen‐bonding interaction with carbonyl substrates enables selective single‐electron transfer events for selective nitrilization of 1° amides, offering a tunable ...
Seongwoo Bae, Dongwook Kim, Jinwoo Kim
wiley   +1 more source

Photosensitizer fluorescence emission during photodynamic therapy applied to dermatological diseases

, 2011
We present a first approach to predict the photosensitizer fluorescence dependence with depth during the Photodynamic Therapy applied to a skin disease commonly treated in the dermatological clinical practice.
F. Fanjul-Vélez, Fanjul Vélez, Félix, Salas García, Irene, J. L. Arce-Diego, M. López-Escobar, I. Salas-García, N. Ortega-Quijano, Ortega Quijano, Noé, Arce Diego, José Luis, López Escobar, María   +9 more
core   +1 more source

Bidirectional Photoswitching of a Tailored Azobenzene with Red and Far‐Red Light Involving Triplet Sensitization in an Aqueous System

Advanced Science, EarlyView.
The action spectrum of a tailored azobenzene is shifted toward bio‐optical window through the chemical modification of its singlet and triplet energy levels. Consequently, the bidirectional photo‐switching of azobenzene in physiological conditions is achieved when excited by red and far‐red light, which offers greater tissue penetration.
Mila Miroshnichenko, Helen Hölzel, Edvinas Orentas, Karolis Kazlauskas, Pedro Ferreira, Fabienne Dumoulin, Carles Alcaide, Miquel Solà, Roger Bresolí‐Obach, Santi Nonell, Pankaj Bharmoria, Kasper Moth‐Poulsen   +11 more
wiley   +1 more source

ZnTPPEA as a Potential Photosensitizer in Photodynamic Therapy

, 2022
Photodynamic therapy (PDT) is an emerging treatment that is used against certain types of cancer and other diseases. It functions using a photosensitizer in the presence of light that contributes to cell death in the desired tissues.
Welborn, Marly, Bradshaw, Joseph E.
core