Results 11 to 20 of about 90,891 (346)

Recent Development of Heavy Atom-Free Triplet Photosensitizers for Photodynamic Therapy

Applied Sciences, 2022
Photodynamic therapy (PDT) is an attractive method for cancer treatment. Triplet photosensitizers (PSs) are critical for this method; upon photoexcitation, efficient intersystem crossing (ISC) occurs for triplet PSs, the triplet-excited state of the ...
Xiao Xiao, Kaiyue Ye, Muhammad Imran, Jianzhang Zhao   +3 more
doaj   +1 more source

Electronic State Engineering in Perovskite‐Cerium‐Composite Nanocrystals toward Enhanced Triplet Annihilation Upconversion

Advanced Science, 2023
Wavelength conversion based on hybrid inorganic–organic sensitized triplet–triplet annihilation upconversion (TTA‐UC) is promising for applications such as photovoltaics, light‐emitting‐diodes, photocatalysis, additive manufacturing, and bioimaging.
Nan Gong, Runchen Lai, Shiyu Xing, ZhengZheng Liu, Junyao Mo, Tao Man, Zicheng Li, Dawei Di, Juan Du, Dezhi Tan, Xiaofeng Liu, Jianrong Qiu, Beibei Xu   +12 more
doaj   +1 more source

Sky Blue and Yellow Cluster Light-Emitting Diodes Based on Asymmetric Cu4I4 Nanocubes

Research, 2022
Controllably optimizing excited-state characteristics is crucial for luminescent nanoclusters but remains a formidable challenge. Herein, we report an effective “ligand-induced asymmetrization” strategy for constructing thermally activated delayed ...
Nan Zhang, Lei Qu, Huan Hu, Ran Huo, Yushan Meng, Chunbo Duan, Jing Zhang, Chunmiao Han, Guohua Xie, Hui Xu   +9 more
doaj   +1 more source

Triplet-Energy Quenching Functions of Antioxidant Molecules

Antioxidants, 2022
UV-like DNA damage is created in the dark by chemiexcitation, in which UV-activated enzymes generate reactive oxygen and nitrogen species that create a dioxetane on melanin.
Carlos Angelé-Martínez, Leticia Christina Pires Goncalves, Sanjay Premi, Felipe A. Augusto, Meg A. Palmatier, Saroj K. Amar, Douglas E. Brash   +6 more
doaj   +1 more source

Magnetophotoselection in the Investigation of Excitonically Coupled Chromophores: The Case of the Water-Soluble Chlorophyll Protein

Molecules, 2022
A magnetophotoselection (MPS) investigation of the photoexcited triplet state of chlorophyll a both in a frozen organic solvent and in a protein environment, provided by the water-soluble chlorophyll protein (WSCP) of Lepidium virginicum, is reported ...
Susanna Ciuti, Alessandro Agostini, Antonio Barbon, Marco Bortolus, Harald Paulsen, Marilena Di Valentin, Donatella Carbonera   +6 more
doaj   +1 more source

On the decay of the triplet state of thionucleobases [PDF]

Physical Chemistry Chemical Physics, 2017
The double-well triplet state of thionucleobases allows for a two-step mechanistic control of their triplet decay lifetime.
Shuming Bai, Mario Barbatti
openaire   +3 more sources

Triplet State Radical Chemistry: Significance of the Reaction of ³SO₂ with HCOOH and HNO₃. [PDF]

J Am Chem Soc
The triplet excited states of sulfur dioxide can be accessed in the UV region and have a lifetime large enough that they can react with atmospheric trace gases.
Anglada JM, Martins-Costa MTC, Francisco JS, Ruiz-López MF.   +3 more
europepmc   +2 more sources

Revealing the contest between triplet-triplet exchange and triplet-triplet energy transfer coupling in correlated triplet pair states in singlet fission

, 2021
Understanding the separation of the correlated triplet pair state 1(TT) intermediate is critical for leveraging singlet fission to improve solar cell efficiency. This separation mechanism is dominated by two key interactions: (i) the exchange interaction
Nicholas, Mayhall, Vibin, Abraham
core   +1 more source

Fluorescence-informed photoacoustic discrimination of multiple chromophores by lifetime mapping optically gated responses

Photoacoustics, 2023
Synchronously Amplified Photoacoustic Image Recovery (SAPhIRe) offers improved background suppression using non-linear properties of modulatable contrast agents.
Md S. Islam, Donald VanderLaan, Josie Hickman, Stanislav Emelianov, Robert M. Dickson   +4 more
doaj   +1 more source

Photosensitizer-Free Photoinduced Ground-State Triplet Carbene-Assisted Aryloxy Radical Generation via HAT

, 2023
Carbene is the pivotal reactive intermediate and its reactivity potential has been extensively explored in a variety of synthetic transformations ranging from cycloaddition to site-selective C–H functionalizations.
Debasish, Laha, Onkar S. , Bankar, Dr. Debashree , Ghosh, Balu S., Navale, Supriyo , Santra, Dr. Ramakrishna G., Bhat   +5 more
core   +1 more source