Results 11 to 20 of about 162,641 (292)
Fluorescence Studies of the Interplay between Metal-Enhanced Fluorescence and Graphene-Induced Quenching. [PDF]
Materials (Basel), 2018 Fluorescence microscopy and spectroscopy were applied for studying the optical properties of a hybrid nanostructure, in which we combine plasmon-induced metal enhanced fluorescence with energy transfer to epitaxial graphene. Covering the layer of silver islands with a monolayer graphene, while turning on the efficient energy transfer from emitters ...
Wiwatowski K +3 more
europepmc +5 more sources
Metal-enhanced e-type fluorescence [PDF]
Applied Physics Letters, 2008 In this letter, we report metal-enhanced e-type fluorescence. Eosin in close proximity to silver island films (SiFs) shows enhanced e-type fluorescence with an approximately two-fold higher intensity observed from SiFs, as compared to a control sample. Our findings suggest two complementary mechanisms for the enhancement: surface plasmons can radiate e-
Yongxia, Zhang +3 more
openaire +3 more sources
Metal-Enhanced Fluorescence of Carbon Nanotubes [PDF]
Journal of the American Chemical Society, 2010 The photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced fluorescence (MEF) of surfactant-coated carbon nanotubes on nanostructured gold substrates.
Hong, Guosong +5 more
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Metal-enhanced excimer (P-type) fluorescence [PDF]
Chemical Physics Letters, 2008 In this Letter, we report the first observation of metal-enhanced excimer (P-type) fluorescence from pyrene. Pyrene in close proximity to silver island films (SIFs) shows enhanced pyrene excimer emission with a ?2.5-fold higher emission intensity observed from SIFs and 5×10?3M pyrene, as compared to a quartz control sample containing no silver ...
Yongxia, Zhang +3 more
openaire +3 more sources
DNA hybridization assays using metal-enhanced fluorescence [PDF]
Biochemical and Biophysical Research Communications, 2003 We describe a new approach to DNA hybridization assays using metal-enhanced fluorescence. Thiolated oligonucleotides were bound to silver particles on a glass substrate. Addition of a complementary fluorescein-labeled oligonucleotide resulted in a dramatic time-dependent 12-fold increase in fluorescence intensity during hybridization.
Joanna Malicka +2 more
exaly +3 more sources
Metal Manipulated Fluorescence: Mechanisms, Materials, and Plasmonic Strategies for Enhanced Emission [PDF]
NanomaterialsFluorescence remains a foundational optical phenomenon underpinning applications in sensing, imaging, diagnostics, and catalysis. Among the strategies developed to modulate fluorescence, coupling fluorophores with plasmonic metals has emerged as a ...
G. Usha Nandhini +3 more
doaj +2 more sources
Photodeposition of Silver Can Result in Metal-Enhanced Fluorescence
Applied Spectroscopy, 2003 Chemically deposited silver particles are widely used for surface-enhanced Raman scattering (SERS) and more recently for surface-enhanced fluorescence (SEF), also known as metal-enhanced fluorescence (MEF). We now show that metallic silver deposited by laser illumination results in an ∼7-fold increased intensity of locally bound indocyanine green.
Chris D Geddes, Joseph R Lakowicz
exaly +4 more sources
Circuit theory of metal-enhanced fluorescence [PDF]
Photonics and Nanostructures - Fundamentals and Applications, 2019 Abstract Metal-enhanced fluorescence (MEF) comprises several linear phenomena which can be successfully described either by a classical theory or by a quantum one. Usually different phenomena are described by different classical models. Recently, an analytical model for a metal nanoantenna coupled to a quantum emitter was suggested that grants an ...
Simovski, Constantin R.
openaire +3 more sources
Sensing and Bio-Sensing Research, 2020 Very high surface/metal enhanced fluorescence was observed for E. coli single bacteria cells labeled with composite CdSeS/ZnS quantum dots (QDs) on three substrates: aluminum foil, aluminum film and gold film.
Alisher Sultangaziyev +5 more
doaj +1 more source
Nano-Micro Letters, 2021 Dual-functional aggregation-induced photosensitizers (AIE-PSs) with singlet oxygen generation (SOG) ability and bright fluorescence in aggregated state have received much attention in image-guided photodynamic therapy (PDT).
Mohammad Tavakkoli Yaraki +6 more
doaj +1 more source