Enhanced upconversion luminescence through core/shell structures and its application for detecting organic dyes in opaque fishes

2016 ◽  
Vol 15 (2) ◽  
pp. 260-265 ◽  
Author(s):  
Pan Hu ◽  
Xiaofeng Wu ◽  
Shigang Hu ◽  
Zenghui Chen ◽  
Huanyuan Yan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rhodamine B ◽  
Organic Dyes ◽  
Upconversion Luminescence ◽  
Shell Structures ◽  
Sodium Fluorescein ◽  
Core Shell

It confirms based on LRET that no Rhodamine B is absorbed by fishes after incubating in the aqueous solution of 1 μg ml−1 Rhodamine B for one day, contrary to sodium fluorescein.

Facile method for the synthesis of Fe3O4@HCP core–shell porous magnetic microspheres for fast separation of organic dyes from aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47530-47535 ◽  
Author(s):  
Long Pan ◽  
Meng-Ying Xu ◽  
Zi-Lu Liu ◽  
Bi-Bai Du ◽  
Kun-Hao Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Specific Surface ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Specific Surface Area ◽  
Organic Dyes ◽  
Magnetic Microspheres ◽  
Core Shell ◽  
Magnetic Microsphere ◽  
Fast Separation

A novel type of porous magnetic microsphere (Fe3O4@HCP) was firstly synthesized and possesses a high Brunauer–Emmett–Teller specific surface area and excellent adsorption capacity for organic dyes.

scholarly journals Core@shell Fe3O4@Mn2+-doped NaYF4:Yb/Tm nanoparticles for triple-modality T1/T2-weighted MRI and NIR-to-NIR upconversion luminescence imaging agents

RSC Advances ◽  
2017 ◽  
Vol 7 (60) ◽  
pp. 37929-37937 ◽  
Author(s):  
Yang Luo ◽  
Sinan Du ◽  
Wei Zhang ◽  
Zhengfang Liao ◽  
Fang Zuo ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Shell Structures ◽  
Imaging Agents ◽  
Core Shell ◽  
Dual Mode ◽  
Luminescence Imaging

Core@shell structures of Fe3O4@Mn2+-doped NaYF4:Yb/Tm nanoparticles (NPs) were prepared and then used for in vivo NIR to NIR (980 nm to 800 nm) imaging, and as dual-mode T1/T2-weighted MRI because of the co-existence of Fe3O4 and Mn2+ in the NPs.

scholarly journals Surfactant-assisted ZnO processing as a versatile route to ZIF composites and hollow architectures with enhanced dye adsorption

2016 ◽  
Vol 4 (35) ◽  
pp. 13509-13518 ◽  
Author(s):  
Samir El-Hankari ◽  
Jordi Aguilera-Sigalat ◽  
Darren Bradshaw
Keyword(s):  
Rhodamine B ◽  
High Selectivity ◽  
Surface Passivation ◽  
Dye Adsorption ◽  
Shell Structures ◽  
Core Shell ◽  
Surfactant Assisted

Surfactant-assisted surface passivation of ZnO allows the preparation of ZnO@ZIF-8 core–shell composites with high selectivity for rhodamine B separation and full retention of template morphology. The oxide cores can be etched to access a range of hollow or yolk–shell structures.

scholarly journals A Fluorescent Sensor for Zinc Detection and Removal Based on Core-Shell Functionalized Fe3O4@SiO2Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Yaohui Xu ◽  
Yang Zhou ◽  
Wenhui Ma ◽  
Shixing Wang
Keyword(s):  
Aqueous Solution ◽  
Color Change ◽  
Fluorescent Sensor ◽  
Shell Structures ◽  
Acetonitrile Solution ◽  
Core Shell ◽  
The Core ◽  
Visual Color ◽  
Efficient Route ◽  
Zinc Detection

The magnetic Fe3O4@SiO2nanoparticles (NPs) functionalized with 8-chloroacetylaminoquinoline as a fluorescent sensor for detection and removal of Zn2+have been synthesized. The core-shell structures of the nanoparticles and chemical composition have been confirmed by TEM, XRD, FTIR, and XPS techniques. The addition of functionalized Fe3O4@SiO2NPs into the acetonitrile solution of Zn2+had an effect of visual color change as well as significant fluorescent enhancement. High-saturated magnetizations (24.7 emu/g) of functionalized Fe3O4@SiO2NPs could help to separate the metal ions from the aqueous solution. The magnetic sensor exhibited high removal efficiency towards Zn2+(92.37%). In this work, we provided an easy and efficient route to detect Zn2+and simultaneously remove Zn2+.

scholarly journals Homo–hetero/core–shell structure design strategy of NaYF4 nanocrystals for superior upconversion luminescence

RSC Advances ◽  
2021 ◽  
Vol 11 (34) ◽  
pp. 20746-20751
Author(s):  
Raheel Ahmed Janjua ◽  
Obaid Iqbal ◽  
Muhammad Aqeel Ahmed ◽  
Abdullah A. Al-Kahtani ◽  
Sara Saeed ◽  
...  
Keyword(s):  
Shell Structure ◽  
Upconversion Luminescence ◽  
Design Strategy ◽  
Structure Design ◽  
Shell Structures ◽  
Core Shell ◽  
Core Shell Structure

Establishment of essential conditions of different phases of NaYF4 and their utilization for the synthesis of core/shell structures to achieve the enhancement of UCL intensities.

Sign in / Sign up

Export Citation Format

Share Document