Results 111 to 120 of about 4,215,222 (292)

Investigation of simultaneously existed Raman scattering enhancement and inhibiting fluorescence using surface modified gold nanostars as SERS probes

Scientific Reports, 2017
One of the main challenges for highly sensitive surface-enhanced Raman scattering (SERS) detection is the noise interference of fluorescence signals arising from the analyte molecules. Here we used three types of gold nanostars (GNSs) SERS probes treated
Feng Shan, Xiao-Yang Zhang, Xing-Chang Fu, Li-Jiang Zhang, Dan Su, Shan-Jiang Wang, Jing-Yuan Wu, Tong Zhang   +7 more
doaj   +1 more source

Metal-enhanced fluorescence through conventional Ag-polyethylene glycol nanoparticles for cellular imaging. [PDF]

RSC Adv, 2023
Chen CJ, Wu CY, Wu CW, Chang CW, Huang TT, Shiao MH, Lin CK, Chen YC, Lin YS.   +8 more
europepmc   +1 more source

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 ...
openaire   +2 more sources

A Magneto‐Mechanically Activated Nerve Guidance Conduit Promotes Peripheral Nerve Regeneration via TIMP1‐Mediated Membrane Tension Transfer

Advanced Functional Materials, EarlyView.
This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu, Yumin Wu, Xiang Gao, Tianlu Wang, Wanting Jia, Xueying Mei, Huanzhong Ji, Zongxi Wu, Yujie Liang, Xiang Li, Kan Li, Jingyuan Li, Guangsen Zheng, Guiqing Liao, Siyong Gao   +14 more
wiley   +1 more source

Recent progress in microRNA detection using integrated electric fields and optical detection methods

Frontiers in Lab on a Chip Technologies
Low-cost, highly-sensitivity, and minimally invasive tests for the detection and monitoring of life-threatening diseases and disorders can reduce the worldwide disease burden.
Logeeshan Velmanickam, Dharmakeerthi Nawarathna   +1 more
doaj   +1 more source

Metal-Enhanced Fluorescence of Chlorophylls in Light-Harvesting Complexes Coupled to Silver Nanowires

The Scientific World Journal, 2013
We investigate metal-enhanced fluorescence of peridinin-chlorophyll protein coupled to silver nanowires using optical microscopy combined with spectrally and time-resolved fluorescence techniques.
Dorota Kowalska, Bartosz Krajnik, Maria Olejnik, Magdalena Twardowska, Nikodem Czechowski, Eckhard Hofmann, Sebastian Mackowski   +6 more
doaj   +1 more source

Selective Dendritic Fluorescent Sensors for Zn(II)

Molecules, 2008
A series of dendritic 8-hydroxyquinoline (8-HQ) and 5-dialkyl(aryl)aminomethyl-8-HQ derivatives were synthesized and their fluoroionophoric properties towardrepresentative alkali, alkaline earth, group IIIA and transition metal ions ...
Yaowu Sha, Ruogu Peng, Feng Wang
doaj   +1 more source

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

Mode‐Dependent Energy Redistribution in Au Nanohole Arrays for Concurrent Photothermal Conversion and Reduced Fluorescence Quenching

Small Structures
Plasmonic nanostructures simultaneously provide electric field enhancement and photothermal conversion, yet strong optical absorption for light‐to‐heat conversion increases nonradiative metal losses, which induce fluorescence quenching.
Jiseok Han, Minki Kim, Hyeonseo Choi, Jong‐Hwan Lee, Sang Hun Lee, Jihwan Song   +5 more
doaj   +1 more source

Graphene-MoS2 spacer on metal-insulator-metal structure for enhanced surface plasmon coupled emission

AIP Advances, 2018
In fluorescence microscopy, surface plasmon coupled emission (SPCE) has become a state-of-art technique for efficient detection of analytes at a very low concentration, where lights emitted from excited fluorophores couple to the surface plasmon mode of ...
Md Mahadi Masnad, Sharif Mohammad Mominuzzaman   +1 more
doaj   +1 more source