One-pot aqueous synthesis of composition-tunable near-infrared emitting Cu-doped CdS quantum dots as fluorescence imaging probes in living cells

2012 ◽  
Vol 22 (41) ◽  
pp. 22250 ◽  
Author(s):  
Fei Zhang ◽  
Xi-Wen He ◽  
Wen-You Li ◽  
Yu-Kui Zhang
Keyword(s):  
Quantum Dots ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Living Cells ◽  
Cds Quantum Dots ◽  
One Pot ◽  
Aqueous Synthesis ◽  
Imaging Probes

Synthesis and optical properties of emission-tunable PbS/CdS core–shell quantum dots for in vivo fluorescence imaging in the second near-infrared window

RSC Advances ◽  
2014 ◽  
Vol 4 (77) ◽  
pp. 41164-41171 ◽  
Author(s):  
Yoshikazu Tsukasaki ◽  
Masatoshi Morimatsu ◽  
Goro Nishimura ◽  
Takao Sakata ◽  
Hidehiro Yasuda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Fluorescence Imaging ◽  
Near Infrared ◽  
Core Shell ◽  
Cds Quantum Dots ◽  
In Vivo Fluorescence ◽  
In Vivo Fluorescence Imaging ◽  
Infrared Window

This paper describes the synthesis and optical properties of PbS/CdS quantum dots for in vivo fluorescence imaging.

One-pot aqueous synthesis of near infrared emitting PbS quantum dots

2012 ◽  
Vol 258 (18) ◽  
pp. 7181-7187 ◽  
Author(s):  
Yaxin Yu ◽  
Kexin Zhang ◽  
Shuqing Sun
Keyword(s):  
Quantum Dots ◽  
Near Infrared ◽  
One Pot ◽  
Aqueous Synthesis ◽  
Pbs Quantum Dots

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 Near Infrared Fluorescence Imaging of Intraperitoneal Ovarian Tumors in Mice Using Erythrocyte-Derived Optical Nanoparticles and Spatially-Modulated Illumination

Cancers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2544
Author(s):  
Joshua M. Burns ◽  
Elise Shafer ◽  
Raviraj Vankayala ◽  
Vikas Kundra ◽  
Bahman Anvari
Keyword(s):  
Fluorescence Imaging ◽  
Cytoreductive Surgery ◽  
Animal Studies ◽  
Near Infrared ◽  
Gynecological Cancer ◽  
Ovarian Tumors ◽  
Structured Illumination ◽  
Spatial Frequencies ◽  
Imaging Probes ◽  
Intraoperative Fluorescence Imaging

Ovarian cancer is the deadliest gynecological cancer. Cytoreductive surgery to remove primary and intraperitoneal tumor deposits remains as the standard therapeutic approach. However, lack of an intraoperative image-guided approach to enable the visualization of all tumors can result in incomplete cytoreduction and recurrence. We engineered nano-sized particles derived from erythrocytes that encapsulate the near infrared (NIR) fluorochrome, indocyanine green, as potential imaging probes for tumor visualization during cytoreductive surgery. Herein, we present the first demonstration of the use of these nanoparticles in conjunction with spatially-modulated illumination (SMI), at spatial frequencies in the range of 0–0.5 mm−1, to fluorescently image intraperitoneal ovarian tumors in mice. Results of our animal studies suggest that the nanoparticles accumulated at higher levels within tumors 24 h post-intraperitoneal injection as compared to various other organs. We demonstrate that, under the imaging specifications reported here, use of these nanoparticles in conjunction with SMI enhances the fluorescence image contrast between intraperitoneal tumors and liver, and between intraperitoneal tumors and spleen by nearly 2.1, and 3.0 times, respectively, at the spatial frequency of 0.2 mm−1 as compared to the contrast values at spatially-uniform (non-modulated) illumination. These results suggest that the combination of erythrocyte-derived NIR nanoparticles and structured illumination provides a promising approach for intraoperative fluorescence imaging of ovarian tumor nodules at enhanced contrast.

Sign in / Sign up

Export Citation Format

Share Document