Results 31 to 40 of about 32,210 (274)

EXPERIMENTAL TESTING OF AN IN VIVO METHOD OF PHOTOTOXICITY EVALUATION

Регуляторные исследования и экспертиза лекарственных средств, 2018
At present all new medicinal products and cosmetics that absorb medium-wavelength UVB, long-wavelength UVA, or visible light in the range 290–700 nm need to be tested for potential phototoxicity.
V. А. Vavilova, E. V. Shekunova, V. A. Kashkin, M. N. Makarova, V. G. Makarov, A. Ya. Khaymenov   +5 more
doaj   +1 more source

In Vitro Evaluation of the Photoreactivity and Phototoxicity of Natural Polyphenol Antioxidants

Molecules, 2021
Polyphenols are a large family of natural compounds widely used in cosmetic products due to their antioxidant and anti-inflammatory beneficial properties and their ability to prevent UV radiation-induced oxidative stress.
Brandon Aguiar, Helena Carmo, Jorge Garrido, José M. Sousa Lobo, Isabel F. Almeida   +4 more
doaj   +1 more source

Hyperspectral darkfield microscopy of single hollow gold nanoparticles for biomedical applications [PDF]

, 2013
Hyperspectral microscopy is a versatile method for simultaneous spatial and spectroscopic characterization of nonfluorescent samples. Here we present a hyperspectral darkfield imaging system for spectral imaging of single nanoparticles over an area of ...
Acimovic, Agathi Christofidou, Alkilany, Ament, Anker, Antonios G. Kanaras, Arvizo, Barreto, Bartczak, Becker, Bingham, Brown, Dreaden, Erathodiyil, Grabinski, Hutter, Johnson, Jun, Krpetic, Lassiter, Michalet, Mock, Murray, Natasha Fairbairn, Otto L. Muskens, Parak, Rosman, Saha, Schwartzberg, Sonnichsen, Tracey A. Newman, Urban, Van Dijk, Wu, Xie, Zhang, Zhang, Zhao   +37 more
core   +1 more source

Severe retinal pigment epitheliopathy following brilliant blue G-assisted epiretinal membrane peeling

Journal of Clinical Ophthalmology and Research, 2021
To report a case of severe retinal pigment epitheliopathy following 23G pars plana vitrectomy and brilliant blue G (BBG) assisted epiretinal membrane (ERM) peeling in Stage IV primary ERM.
Chahveer Bindra, Parminder Bindra, Preeti Bindra   +2 more
doaj   +1 more source

Development of Folic Acid-Conjugated and Methylene Blue-Adsorbed Au@TNA Nanoparticles for Enhanced Photodynamic Therapy of Bladder Cancer Cells

Nanomaterials, 2020
Photodynamic therapy (PDT) is a promising treatment for malignancy. However, the low molecular solubility of photosensitizers (PSs) with a low accumulation at borderline malignant potential lesions results in the tardy and ineffective management of ...
Che-Wei Hsu, Nai-Chi Cheng, Mei-Yi Liao, Ting-Yu Cheng, Yi-Chun Chiu   +4 more
doaj   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

The Chemical and Antibacterial Evaluation of St. John's Wort Oil Macerates Used in Kosovar Traditional Medicine

Frontiers in Microbiology, 2017
Hypericum perforatum L. (Hypericaceae), or St. John's Wort, is a well-known medicinal herb often associated with the treatment of anxiety and depression.
James T. Lyles, Austin Kim, Kate Nelson, Angelle L. Bullard-Roberts, Avni Hajdari, Behxhet Mustafa, Cassandra L. Quave, Cassandra L. Quave, Cassandra L. Quave   +8 more
doaj   +1 more source

OpenSPIM - an open access platform for light sheet microscopy

, 2013
Light sheet microscopy promises to revolutionize developmental biology by enabling live in toto imaging of entire embryos with minimal phototoxicity. We present detailed instructions for building a compact and customizable Selective Plane Illumination ...
A Edelstein, J Huisken, J Schindelin, Jan Huisken, Johannes Schindelin, Kevin W Eliceiri, Luke Stuyvenberg, M Weber, Michael Weber, Pavel Tomancak, Peter G Pitrone, RK Ejsmont, S Preibisch, Stephan Preibisch   +13 more
core   +1 more source

From Exciton Dynamics to Cell Fate: A Carbon Dot Based NIR Photocatalytic Platform for Pyroptosis via Self‐Trapped Excitons

Advanced Functional Materials, EarlyView.
A facile and effective method to boost NIR light induced photocatalysis based on nontoxic NIR emissive carbon dots (nir‐CDs) via Self‐trapped excitons, showing that both O2− • and •OH can be generated from nir‐CDs under NIR laser irradiation. Abstract Near‐infrared (NIR) light‐triggered photocatalytic therapy remains a critical challenge in efficient ...
Qingcheng Wang, Quansheng Cheng, Bingzhe Wang, Tesen Zhang, Yupeng Liu, Ruifeng Zheng, Shi Chen, Guichuan Xing, Songnan Qu   +8 more
wiley   +1 more source

Enhanced Sonodynamic Bacterial Elimination and Wound Healing Therapy Based on Lanthanide Ion Doped Bi2WO6 Nanosheets and Hydrogel Platform

Advanced Functional Materials, EarlyView.
Lanthanide ytterbium ions are introduced into Bi2WO6 nanosheets to boost ROS generation under US stimulation. These ytterbium‐doped Bi2WO6 nanosheets serve as efficient sonosensitizers, enabling broad‐spectrum bacterial eradication. To improve biocompatibility for in vivo sonodynamic therapy, the sonosensitizers are integrated into hydrogel matrix ...
Xinyue Lao, Qianqian Bai, Yifei Zhao, Xingyi Dai, Yuan Liu, Xiao Han, Jianhua Hao   +6 more
wiley   +1 more source