scholarly journals Core–shell–shell cytocompatible polymer dot-based particles with near-infrared emission and enhanced dispersion stability

2018 ◽  
Vol 54 (67) ◽  
pp. 9364-9367 ◽  
Author(s):  
Hannah R. Shanks ◽  
Mingning Zhu ◽  
Amir H. Milani ◽  
James Turton ◽  
Sarah Haigh ◽  
...  
Keyword(s):  
Colloidal Stability ◽  
Near Infrared ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Infrared Emission ◽  
Core Shell ◽  
High Brightness ◽  
Polymer Dots ◽  
Shell Particles ◽  
Near Infrared Emission

Core–shell–shell particles with incorporated near-infrared polymer dots give high brightness, increased colloidal stability, and non-radiative resonance energy transfer.

Fluorescence resonance energy transfer (FRET) based nanoparticles composed of AIE luminogens and NIR dyes with enhanced three-photon near-infrared emission for in vivo brain angiography

Nanoscale ◽  
2018 ◽  
Vol 10 (21) ◽  
pp. 10025-10032 ◽  
Author(s):  
Wen Liu ◽  
Yalun Wang ◽  
Xiao Han ◽  
Ping Lu ◽  
Liang Zhu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Infrared Emission ◽  
Biological Imaging ◽  
High Contrast ◽  
Nir Dyes ◽  
Nir Fluorescence ◽  
Near Infrared Emission

Near-infrared (NIR) fluorescence is very important for high-contrast biological imaging of high-scattering tissues such as brain tissue.

Tunable near-infrared emission of binary nano- and mesoscale GUMBOS

RSC Advances ◽  
2014 ◽  
Vol 4 (54) ◽  
pp. 28471-28480 ◽  
Author(s):  
Atiya N. Jordan ◽  
Noureen Siraj ◽  
Susmita Das ◽  
Isiah M. Warner
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Emission Spectra ◽  
Infrared Emission ◽  
Förster Resonance Energy Transfer ◽  
Near Infrared Emission ◽  
Tunable Emission ◽  
Förster Resonance

Mixtures of GUMBOS were used to form binary nanomaterials with tunable emission spectra due to Förster resonance energy transfer (FRET).

A diphenylacrylonitrile conjugated porphyrin with near-infrared emission by AIE–FRET

2019 ◽  
Vol 43 (8) ◽  
pp. 3317-3322 ◽  
Author(s):  
Chenyang Han ◽  
Shengjie Jiang ◽  
Jiabin Qiu ◽  
Hongyu Guo ◽  
Fafu Yang
Keyword(s):  
Energy Transfer ◽  
Fluorescence Resonance Energy Transfer ◽  
Near Infrared ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Infrared Emission ◽  
Aggregation Induced Emission ◽  
Fluorescence Resonance ◽  
Near Infrared Emission

The strong aggregation induced emission–fluorescence resonance energy transfer (AIE–FRET) effect was observed for diphenylacrylonitrile units and porphyrin units.

scholarly journals Uniform Spheres of α-NaYF4:RE3+ (RE=Eu, Tb, Ce, Er, and Tm): Template-Free Synthesis, Multi-Color Photoluminescence, and Their Application in Cellular Imaging

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 119
Author(s):  
Xiaofeng Fan ◽  
Laiqin Gu ◽  
Yiling Hu ◽  
Qi Zhu
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Particle Sizes ◽  
Hydrothermal Processing ◽  
High Brightness ◽  
Luminescent Probes ◽  
Bio Imaging ◽  
Template Free ◽  
Near Infrared Emission

Uniformly dispersed luminescent probes with a high brightness and high resolution are desired in bio imaging fields. Here, ~100 nm sized and well-dispersed spheres of RE3+ doped α-NaYF4 (rare earth (RE) = Eu, Tb, Ce, Er, and Tm) have been facile synthesized through hydrothermal processing in the absence of a template, followed by a proper annealing. The processing window of the cubic structured spheres is wide, because the hydrothermal products are independent of the processing conditions, including reaction time and temperature. The original morphology and crystal structure can be well retained with a calcination temperature up to 600 °C. However, calcination gives rise to a reduction of particle sizes, as a result of the crystallite growth and densification. Under ultraviolet radiation, α-NaYF4:RE3+ spheres show characteristic f-f emissions of RE3+ (RE = Eu, Tb, Ce, Er, and Tm), and exhibit orange red, green, ultraviolet (UV), blue green, and blue emissions, respectively. Mainly because of the near-infrared emission at ~697 nm (5D0→7F4 transitions of Eu3+), the successful imaging of macrophages was achieved by NH2-NaYF4:Eu3+ probes, indicating their excellent imaging capacity for cells in vitro.

Molecular Engineering and Design of Semiconducting Polymer Dots with Narrow-Band, Near-Infrared Emission forin VivoBiological Imaging

ACS Nano ◽  
2017 ◽  
Vol 11 (3) ◽  
pp. 3166-3177 ◽  
Author(s):  
Chi-Shiang Ke ◽  
Chia-Chia Fang ◽  
Jia-Ying Yan ◽  
Po-Jung Tseng ◽  
Joseph R. Pyle ◽  
...  
Keyword(s):  
Near Infrared ◽  
Narrow Band ◽  
Infrared Emission ◽  
Molecular Engineering ◽  
Semiconducting Polymer ◽  
Polymer Dots ◽  
Semiconducting Polymer Dots ◽  
Near Infrared Emission

Layer-by-layer aqueous synthesis, characterization and fluorescence properties of type-II CdTe/CdS core/shell quantum dots with near-infrared emission

RSC Advances ◽  
2013 ◽  
Vol 3 (43) ◽  
pp. 20959-20969 ◽  
Author(s):  
Rijun Gui ◽  
Xueqin An
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Emission ◽  
Water Soluble ◽  
Core Shell ◽  
Layer By Layer ◽  
Type Ii ◽  
Cds Quantum Dots ◽  
Aqueous Synthesis ◽  
Near Infrared Emission

A layer-by-layer epitaxial method was developed to synthesize water-soluble, near-infrared (NIR)-emitting type-II core–shell CdTe/CdS quantum dots (QDs) via employing glutathione-capped CdTe QDs as core templates, CdCl2 and thiourea as shell precursors.

scholarly journals Expression of concern: Layer-by-layer aqueous synthesis, characterization and fluorescence properties of type-II CdTe/CdS core/shell quantum dots with near-infrared emission

RSC Advances ◽  
2020 ◽  
Vol 10 (62) ◽  
pp. 37807-37807
Author(s):  
Laura Fisher
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
Infrared Emission ◽  
Fluorescence Properties ◽  
Core Shell ◽  
Layer By Layer ◽  
Type Ii ◽  
Aqueous Synthesis ◽  
Near Infrared Emission

Expression of concern for ‘Layer-by-layer aqueous synthesis, characterization and fluorescence properties of type-II CdTe/CdS core/shell quantum dots with near-infrared emission’ by Rijun Gui et al., RSC Adv., 2013, 3, 20959–20969. DOI: 1039/C3RA43120G

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