Results 41 to 50 of about 4,215,224 (290)

Effect of hydrogen bonding and complexation with metal ions on the fluorescence of luotonin A [PDF]

, 2013
Fluorescence characteristics of a biologically active natural alkaloid, luotonin A (LuA), were studied by steady-state and time-resolved spectroscopic methods.
Biczók, László, Miskolczy, Zsombor
core   +1 more source

Metal-enhanced fluorescence: The role of quantum yield, Q, in enhanced fluorescence

, 2012
Metal-enhanced fluorescence has attracted enormous research and commercial interest in recent years, due to the ability to significantly enhance fluorescence signatures in the near-field as well as protect fluorophores against photobleaching.
Dragan, Anatoliy, Geddes, Chris
core   +1 more source

Spectral Distortions in Metal-Enhanced Fluorescence [PDF]

Biophysical Journal, 2015
In recent years our laboratory and others have demonstrated many examples and concepts in Metal-Enhanced Fluorescence1 (MEF), a surface plasmon phenomenon, which amplifies both fluorescence and luminescence signatures in the near-field, i.e. less than one wavelength of light away from a metallic object1.
Karolin, Jan O., Ben Hamo, Hilla, Geddes, Chris D.   +2 more
openaire   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Metal-enhanced fluorescence from copper substrates

, 2007
In this letter, the authors report the observation of metal-enhanced fluorescence emission from fluorophores deposited on copper (Cu) substrates. Different thicknesses of Cu particulate films (from 1 to 5nm) were deposited onto glass slides using thermal
Zhang, Yongxia, Aslan, Kadir, Previte, Michael J. R., Geddes, Chris   +3 more
core   +1 more source

Metal-Enhanced Fluorescence for Alpha-Fetoprotein Detection and for SERS Using Hybrid Nanoparticles of Magnetic Cluster Core—Plasmonic Shell Composite

Chemosensors, 2023
We demonstrated that the hybrid core–shell nanostructure of Fe3O4 (core) and gold (shell) could be a good substrate candidate both for metal-enhanced fluorescence (MEF) and surface-enhanced Raman spectroscopy (SERS).
Lam Gia Phuc, Phuong Que Tran Do, Hanh Kieu Thi Ta, Vinh Quang Dang, Sang-Woo Joo, Do Hung Manh, Ta Ngoc Bach, Tran T. T. Van, Nhu Hoa Thi Tran   +8 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Surface plasmon polariton modification in top-emitting organic light-emitting diodes for enhanced light outcoupling [PDF]

, 2014
We report on the enhanced light outcoupling efficiency of monochrome top-emitting organic light-emitting diodes (OLEDs). These OLEDs incorporate a hole transport layer (HTL) material with a substantially lower refractive index (∼ 1:5) than the emitter ...
Hofmann, S., Gather, M.C., Simone Hofmann, Schwab, T., Malte C. Gather, Martin Wieczorek, Leo, K., Wieczorek, M., Reinhard Scholz, Fuchs, C., Cornelius Fuchs, Karl Leo, Scholz, R., Tobias Schwab   +13 more
core   +1 more source

Plasmonic Nanosensors: Design, Fabrication, and Applications in Biomedicine

Chemosensors, 2022
Current advances in the fabrication of smart nanomaterials and nanostructured surfaces find wide usage in the biomedical field. In this context, nanosensors based on localized surface plasmon resonance exhibit unprecedented optical features that can be ...
Valeria Nocerino, Bruno Miranda, Chiara Tramontano, Giovanna Chianese, Principia Dardano, Ilaria Rea, Luca De Stefano   +6 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source