Results 31 to 40 of about 44,543 (288)

Review of selective accumudation of photosensitizers with different chemical structure in tumor tissue

Biomedical Photonics, 2013
The review of available theories explaining mechanisms of photosensitizer selective accumulation in tumor tissue is represented in the article. Variants associated with both targeted delivery of compounds with different chemical structure to tumor and ...
E. A. Machinskaya, V. I. Ivanova-Radkevich   +1 more
doaj   +2 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

In vitro reduction of pathogenic sporothrix schenckii fungus by photodynamic therapy

O Mundo da Saúde, 2017
Sporotrichosis is a disease that affects the lymph vessels, skin and some internal organs. Most cases are presented as a subacute chronic mycosis caused by the Sporothrix schenckii fungus; fairly common in tropical regions. The aim of this study was to
Gunther Monteiro de Paula Guirado, Ricardo Scarparo Navarro, Rodnei Dennis Rossoni, Juliana Campos Junqueira, Luciano dos Santos Feitosa   +4 more
doaj  

Encapsulation of palladium porphyrin photosensitizer in layered metal oxide nanoparticles for photodynamic therapy against skin melanoma

Science and Technology of Advanced Materials, 2015
We designed a biodegradable nanocarrier of layered double hydroxide (LDH) for photodynamic therapy (PDT) based on the intercalation of a palladium porphyrin photosensitizer (PdTCPP) in the gallery of LDH for melanoma theragnosis.
Zih-An Chen, Yaswanth Kuthati, Ranjith Kumar Kankala, Yu-Chuan Chang, Chen-Lun Liu, Ching-Feng Weng, Chung-Yuan Mou, Chia-Hung Lee   +7 more
doaj   +1 more source

Self‐Immolative Activatable Nanoassembly toward Immuno‐Photodynamic Therapy in TME

Advanced Functional Materials, EarlyView.
A quinone methide‐gated, self‐immolative, H2O2‐responsive nano‐photosensitizer (Pyz/PS) is developed for targeted immuno‐photodynamic therapy. Pyz/PS selectively activates within tumor microenvironments, restores photosensitizer activity, generates ROS, and depletes intracellular GSH, enhancing oxidative stress.
Jing Li, E Pang, Snehasish Debnath, Jia Hong, Aojun Qiu, Dongeun Kim, Goeun Kim, Minhuan Lan, Min‐Goo Lee, Qian‐Yong Cao, Jong Seung Kim   +10 more
wiley   +1 more source

In Vitro Lethal Effect of Photodynamic Therapy on Human Pancreatic Cancer Cells and Its Major Influencing Factors

Cancer Biology & Medicine, 2011
OBJECTIVE To investigate the in vitro lethal effect of photodynamic therapy (PDT) using the photosensitizer hematoporphyrin on the human pancreatic cancer cell line Panc-1, the major influencing factors and the mechanisms of treatment.METHODS Three ...
Zhong Yu, Kai-hong Huang, Wa Zhong, Li-qun Yang, Qi-kui Chen, Zhao-hua Zhu   +5 more
doaj  

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

Advanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz, Katarzyna Starzak, Malgorzata Noworyta, Konrad Cyprych, Krzysztof Bartkowski, Zahra Badri, Sukhvinder Dhiman, Cina Foroutan‐Nejad, Jaroslaw Mysliwiec, Marcin Lindner, Joanna Ortyl   +10 more
wiley   +1 more source

Carrier‐Free, Amorphous Verteporfin Nanodrug for Enhanced Photodynamic Cancer Therapy and Brain Drug Delivery

Advanced Science
Glioblastoma (GBM) is hard to treat due to cellular invasion into functioning brain tissues, limited drug delivery, and evolved treatment resistance. Recurrence is nearly universal even after surgery, chemotherapy, and radiation.
John A. Quinlan, Collin T. Inglut, Payal Srivastava, Idrisa Rahman, Jillian Stabile, Brandon Gaitan, Carla Arnau Del Valle, Kaylin Baumiller, Anandita Gaur, Wen‐An Chiou, Baktiar Karim, Nina Connolly, Robert W. Robey, Graeme F. Woodworth, Michael M. Gottesman, Huang‐Chiao Huang   +15 more
doaj   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

THE STUDY OF THE OPTICAL PROPERTIES OF CYCLODEXTRIN-PHOTOSENSITIZER mTHPC COMPLEXES

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2019
The photostability of complexes of the mTHPC photosensitizer with different types of cyclodextrins was studied. The photostability is a characteristic of the bond strength of the photosensitizer-carrier complex. The conclusions about the most appropriate
M. V. Goltsev, N. A. Nedzvedz, V. P. Zorin   +2 more
doaj