[HTML][HTML] Role of photoactive phytocompounds in photodynamic therapy of cancer

K Muniyandi, B George, T Parimelazhagan… - Molecules, 2020 - mdpi.com
Cancer is one of the greatest life-threatening diseases conventionally treated using chemo-
and radio-therapy. Photodynamic therapy (PDT) is a promising approach to eradicate …

Light and singlet oxygen in plant defense against pathogens: phototoxic phenalenone phytoalexins

C Flors, S Nonell - Accounts of chemical research, 2006 - ACS Publications
Plants defend themselves from pathogen infections or mechanical injury by a number of
mechanisms, including the induced biosynthesis of antimicrobial secondary metabolites …

Imaging the production of singlet oxygen in vivo using a new fluorescent sensor, Singlet Oxygen Sensor Green®

C Flors, MJ Fryer, J Waring, B Reeder… - Journal of …, 2006 - academic.oup.com
Singlet oxygen is known to be produced by cells in response to photo-oxidative stresses and
wounding. Due to singlet oxygen being highly reactive, it is thought to have a very short half …

Time-dependent approaches for the calculation of intersystem crossing rates

M Etinski, J Tatchen, CM Marian - The Journal of chemical physics, 2011 - pubs.aip.org
We present three formulas for calculating intersystem crossing rates in the Condon
approximation to the golden rule by means of a time-dependent approach: an expression …

[HTML][HTML] The photoactivity of natural products–an overlooked potential of phytomedicines?

B Siewert, H Stuppner - Phytomedicine, 2019 - Elsevier
Background Photoactivity, though known for centuries, is only recently shifting back into
focus as a treatment option against cancer and microbial infections. The external factor light …

Photophysics of phenalenone: quantum-mechanical investigation of singlet–triplet intersystem crossing

MC Daza, M Doerr, S Salzmann, CM Marian… - Physical Chemistry …, 2009 - pubs.rsc.org
We have examined the electronic and molecular structure of 1H-phenalen-1-one
(phenalenone) in the electronic ground state and in the lowest excited states, as well as …

Two‐photon singlet oxygen microscopy: The challenges of working with single cells

E Skovsen, JW Snyder… - Photochemistry and …, 2006 - Wiley Online Library
ABSTRACT A microscope is described in which singlet molecular oxygen, O2 (a 1Δg), is
produced in a femtoliter focal volume via a nonlinear two‐photon photosensitized process …

Environmental photochemistry on plants: recent advances and new opportunities for interdisciplinary research

M Sleiman, A Nienow, C Richard - Photochemical & Photobiological …, 2022 - Springer
Plants play a central role in the photochemistry of chemicals in the environment. They
represent a major atmospheric source of volatile organic compounds (VOCs) but also an …

[HTML][HTML] Perinaphthenone phototransformation in a model of leaf epicuticular waxes

AS Trivella, S Monadjemi, DR Worrall… - … of Photochemistry and …, 2014 - Elsevier
Abstract Perinaphthenone (1H-phenalen-1-one, PN) is a reference photosensitizer
producing singlet oxygen with a quantum yield close to one in a large variety of solvents. It is …

Wheat susceptibility to blast is enhanced by a photosynthetic inhibitor

TB Oliveira, CE Aucique‐Pérez… - Journal of …, 2021 - Wiley Online Library
Considering blast, caused by Pyricularia oryzae, as a critical threat to wheat yield and the
importance of photosynthesis as the source of energy used by plants to activate their …