Results 1 to 10 of about 3,607 (204)

Antimicrobial Photodynamic Therapy on Pseudomonas aeruginosa Using a Diode Laser and PhotoMed, Methyl Pheophorbide A, or RadachlorinⓇ

Korean Journal of Clinical Laboratory Science
Photodynamic therapy (PDT) activates intracellular oxygen using a photosensitizer activated by light of a specific wavelength and is a potential means of treating wound infections caused by antibiotic-resistant bacteria.
Young-Kyu SONG, Keun-Dol YOOK, Ji-Won KIM   +2 more
doaj   +2 more sources

Photosensitizing Activity of Pegylated Pheophorbide a

, 2010
Photodynamic therapy (PDT) is a non-invasive therapeutic modality used in a various number of diseases and cancer. It involves the systemic or topic administration of a photosensitizer, followed by irradiation with light. The activated photosensitizer converts oxygen to singlet oxygen and/or reactive oxygen species (ROS) which lead to cell death and ...
Rapozzi, V, ZACCHIGNA, MARINA, CATENI, FRANCESCA, BONORA, GIAN MARIA, DRIOLI, Sara, Xodo L., ZORZET, SONIA   +6 more
openaire   +5 more sources

A naturally occurring epiallele associates with leaf senescence and local climate adaptation in Arabidopsis accessions

Nature Communications, 2018
Epigenetic variation underlies various aspects of phenotypic diversity of plants. Here, He et al show a naturally occurring epiallele controls Arabidopsis leaf senescence by regulating the expression of PHEOPHYTIN PHEOPHORBIDE HYDROLASE (PPH), and is ...
Li He, Wenwu Wu, Gaurav Zinta, Lan Yang, Dong Wang, Renyi Liu, Huiming Zhang, Zhimin Zheng, Huan Huang, Qingzhu Zhang, Jian-Kang Zhu   +10 more
doaj   +1 more source

Combination of EGCG and CPPU Treatment Alleviates Pericarp Browning by Boosting Antioxidant Activity and Inhibiting Chlorophyll Degradation in “Feizixiao” Litchi After Harvest

Food Frontiers, Volume 7, Issue 2, March 2026.
The combined treatment of EGCG and CPPU exhibits alleviating the reduction of phenolic content and antioxidant activity, thereby reducing MDA and H2O2 accumulation, as well as maintaining membrane integrity; and inhibiting chlorophyll degradation and the expression of related genes.
Hua Huang, Hailun Liu, Jiaman Wu, Ruichun Zhang, Chao Fan   +4 more
wiley   +1 more source

Photoresponsive nanocapsulation of cobra neurotoxin and enhancement of its central analgesic effects under red light

International Journal of Nanomedicine, 2017
Qian Yang, Chuang Zhao, Jun Zhao, Yong Ye Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, People’s Republic of China Abstract: Cobra neurotoxin (CNT), a ...
Yang Q, Zhao C, Zhao J, Ye Y
doaj  

Precise Regulation of Membrane Proteins: From Physical Technology to Biomolecular Strategy

Advanced Science, Volume 13, Issue 10, 18 February 2026.
This review summarizes the emerging strategies for the precise regulation of membrane proteins using physical stimuli and biomolecule‐based tools. These methods provide new insights into cell regulation and offer promising directions for future disease treatment.
Xiu Zhao, Qingqing Zhou, Mengli Li, Wen Zou, Zhenzhong Zhang, Jinjin Shi, Junjie Liu   +6 more
wiley   +1 more source

Activity Against Human Pathogens of Two Polyunsaturated Aldehydes and Pheophorbide a

Applied Sciences
Microalgae are extremely diverse photosynthetic organisms, adapted to live in different habitat conditions, from freshwater to marine environments. This adaptability is also associated with the ability to produce several metabolites.
Alessandro Coppola, Vizma Nikolajeva, Chiara Lauritano   +2 more
doaj   +1 more source

Mass spectrometry in ocular drug research

Mass Spectrometry Reviews, Volume 45, Issue 1, Page 37-68, January/February 2026.
Abstract Mass spectrometry (MS) has been proven as an excellent tool in ocular drug research allowing analyzes from small samples and low concentrations. This review begins with a short introduction to eye physiology and ocular pharmacokinetics and the relevance of advancing ophthalmic treatments.
Eva M. del Amo, Kati‐Sisko Vellonen, Arto Urtti, Tetsuya Terasaki, Anam Hammid, Paavo Honkakoski, Seppo Auriola   +6 more
wiley   +1 more source

Enhanced in vitro photodynamic therapy for triple-negative breast cancer by pheophorbide a-encapsulated chitosan-tripolyphosphate nanoparticles

Photodiagnosis and Photodynamic Therapy
Triple-negative breast cancer (TNBC) is a highly aggressive subtype of breast cancer. Current treatment strategies typically involve surgical resection and chemotherapy, both of which are often associated with significant adverse effects.
Wen-Yao Yin, Zih-You Lin, Mei-Ying Wang, Dhivyabharathi Balakrishnan, Cheng-I Lee   +4 more
doaj   +1 more source

Estudio fitoquímico de hojas de Uncaria guianensis y evaluación de actividad antibacteriana Phytochemical study of Uncaria guianensis leaves and antibacterial activity evaluation

Acta Amazonica, 2011
Del extracto de éter de petróleo de hojas de Uncaria guianensis (Rubiaceae), se aisló un compuesto tipo clorina denominado éster etílico de feoforbida a y una mezcla de esteroles conocidos como β-sitosterol y estigmasterol.
Juliet Angélica Prieto Rodríguez, Oscar Javier Patiño Ladino, Liliana Lesmes, Jose Manuel Lozano, Luis Enrique Cuca Suárez   +4 more
doaj   +1 more source