Results 111 to 120 of about 79,071 (352)

A novel method for the study of autophagy: destruction of hepatocytic lysosomes, but not autophagosomes, by the photosensitizing porphyrin tetra(4-sulphonatophenyl)porphine [PDF]

, 1997
Per E. Strømhaug, Trond Berg, Kristian Berg, Per O. Seglen   +3 more
openalex   +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

Tris‐benzo[cd]indole Cyanine Enables the NIR‐photosensitized Radical and Thiol‐ene Polymerizations at 940 nm [PDF]

, 2023
Christine Elian, Benjamin Mourot, Camil Benbouziyane, Jean‐Pierre Malval, Sonia Lajnef, Fabienne Peyrot, Florian Massuyeau, Olivier Siri, Denis Jacquemin, Simon Pascal, Davy‐Louis Versace   +10 more
openalex   +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

Self-assembled aldehyde dehydrogenase-activatable nano-prodrug for cancer stem cell-enriched tumor detection and treatment

Nature Communications
Cancer stem cells, characterized by high tumorigenicity and drug-resistance, are often responsible for tumor progression and metastasis. Aldehyde dehydrogenases, often overexpressed in cancer stem cells enriched tumors, present a potential target for ...
Bowen Li, Jianwu Tian, Fu Zhang, Chongzhi Wu, Zhiyao Li, Dandan Wang, Jiahao Zhuang, Siqin Chen, Wentao Song, Yufu Tang, Yuan Ping, Bin Liu   +11 more
doaj   +1 more source

Development of Mitochondria‐Targeting Photosensitizers via Topoisomerase I Inhibition [PDF]

, 2023
Bumhee Lim, Yeongcheol Lee, Dah In Kwon, Seoyoung Kim, Dong‐Chan Oh, Ikyon Kim, Jeeyeon Lee   +6 more
openalex   +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

Concentration-Dependent Photoproduction of Singlet Oxygen by Common Photosensitizers

Molecules
Singlet oxygen quantum yield (ΦΔ) is a critical parameter in photodynamic studies, particularly for evaluating photosensitizers’ efficiency in diverse applications such as photodynamic therapy and environmental remediation.
Grzegorz Szewczyk, Krystian Mokrzyński
doaj   +1 more source

Evaluation of Hydrogel Suppositories for Delivery of 5-Aminolevulinic Acid and Hematoporphyrin Monomethyl Ether to Rectal Tumors

Molecules, 2016
We evaluated the potential utility of hydrogels for delivery of the photosensitizing agents 5-aminolevulinic acid (ALA) and hematoporphyrin monomethyl ether (HMME) to rectal tumors.
Xuying Ye, Huijuan Yin, Yu Lu, Haixia Zhang, Han Wang   +4 more
doaj   +1 more source

Rapid characterization of sugar-binding specificity by in-solution proximity binding with photosensitizers [PDF]

, 2011
Chuan‐Fa Chang, Jia‐Fu Pan, Chun‐Nan Lin, I‐Lin Wu, Chi‐Huey Wong, Chun‐Hung Lin   +5 more
openalex   +1 more source