A high-yield and versatile method for the synthesis of carbon dots for bioimaging applications

2017 ◽  
Vol 5 (10) ◽  
pp. 1935-1942 ◽  
Author(s):  
Liping Li ◽  
Chunxiang Lu ◽  
Sijin Li ◽  
Shijie Liu ◽  
Lingjie Wang ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Molten Salt ◽  
Fluorescence Imaging ◽  
Carbon Dots ◽  
Large Scale ◽  
High Yield ◽  
Molten Salt Method ◽  
Dual Mode

High yield carbon dots (CDs) were synthesized on a large scale by a facile and versatile molten-salt method, using different precursors. The CDs not only exhibit efficient labelling ability in vitro, but could be chelated with gadolinum ions to constrcut Gd-CDs for dual-mode magnetic resonance and fluorescence imaging.

scholarly journals Large-scale preparation of black phosphorus by molten salt method for energy storage

ChemPhysMater ◽  
2021 ◽  
Author(s):  
Shaojie Zhang ◽  
Zili Qin ◽  
Zhiguo Hou ◽  
Jiajia Ye ◽  
Zhibin Xu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Molten Salt ◽  
Large Scale ◽  
Black Phosphorus ◽  
Molten Salt Method ◽  
Large Scale Preparation ◽  
Scale Preparation

Large-Scale High-Yield Synthesis of PdCu@Au Tripods and the Quantification of their Luminescence Properties for Cancer Cell Imaging

2017 ◽  
Vol 49 ◽  
pp. 85-97
Author(s):  
Bo Pang ◽  
Xiang Xi Meng ◽  
Yang Long Hou ◽  
Hong Fang Sun ◽  
Qiu Shi Ren
Keyword(s):  
Quantum Yield ◽  
Cross Section ◽  
Large Scale ◽  
Biomedical Application ◽  
Au Nanoparticle ◽  
Luminescence Properties ◽  
Localized Surface Plasmon ◽  
High Yield ◽  
Two Photon

The synthesis of anisotropic branched gold nanoparticles remines to be challenging as their arm number and arm length could hardly be controlled, greatly limited their biomedical application. We report the large-scale high-yield synthesis of PdCu@Au tripods, and, for the first time, their two-photon luminescence properties with quantitative characterization of the two-photon action cross section as well as quantum yield. By introducing nitrogen protection to the synthesis of the PdCu bimetallic cores, this approach eliminates the oxidative etching caused by oxygen in the air, providing a 2.5 times higher synthetic yield of 70.4 %, which enables the large-scale preparation of PdCu@Au at ca. 380 mg per batch. By the conformal coating of PdCu bimetallic cores, the PdCu@Au tripods are prepared with a purity of >90 % with average arm length 45.3 ± 5.6 nm that is ideal for biomedical applications. The PdCu@Au tripods demonstrate a much brighter two-photon luminescence than that from Au nanorods, with a 3.6 ± 0.9 times larger two-photon action cross section and comparable quantum yield. Our result also shows the two-photon luminescence property of PdCu@Au tripods could be tuned by their distinct localized surface plasmon resonance property and, in turn, the different amount of Au coating. This tunability could be explained by the recently-proposed two-step excitation mechanism of two-photon luminescence in Au nanoparticle. The folate-targeted in vitro two-photon luminescence imaging of MDA-MB-435 breast cancer cells were also demonstrated to show the great potential using PdCu@Au tripods as novel multi-functional platforms for cancer theranostics.

scholarly journals Fabrication of carbon coated gadolinia particles for dual-mode magnetic resonance and fluorescence imaging

2015 ◽  
Vol 4 (2) ◽  
pp. 118-122 ◽  
Author(s):  
Timur Sh. Atabaev ◽  
Jong Ho Lee ◽  
Dong-Wook Han ◽  
Hyung-Kook Kim ◽  
Yoon-Hwae Hwang
Keyword(s):  
Magnetic Resonance ◽  
Fluorescence Imaging ◽  
Dual Mode ◽  
Carbon Coated

Large-scale synthesis of single-crystalline KNb3O8 nanobelts via a simple molten salt method

2010 ◽  
Vol 36 (2) ◽  
pp. 679-682 ◽  
Author(s):  
Z.Y. Zhan ◽  
C.Y. Xu ◽  
L. Zhen ◽  
W.S. Wang ◽  
W.Z. Shao
Keyword(s):  
Molten Salt ◽  
Large Scale ◽  
Molten Salt Method ◽  
Single Crystalline ◽  
Large Scale Synthesis

Large-Scale Synthesis of Mullite Nanowires by Molten Salt Method

2010 ◽  
Vol 10 (7) ◽  
pp. 4792-4796 ◽  
Author(s):  
Kaifu Huo ◽  
Boquan Zhu ◽  
Jijiang Fu ◽  
Xuedong Li ◽  
Paul K. Chu
Keyword(s):  
Molten Salt ◽  
Large Scale ◽  
Molten Salt Method ◽  
Large Scale Synthesis

scholarly journals Biocompatible Mesoporous Silica–Polydopamine Nanocomplexes as MR/Fluorescence Imaging Agent for Light-Activated Photothermal–Photodynamic Cancer Therapy In Vivo

2021 ◽  
Vol 9 ◽  
Author(s):  
Jiahui Lu ◽  
Chen Ni ◽  
Jie Huang ◽  
Yawen Liu ◽  
Yingkai Tao ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Mesoporous Silica ◽  
Fluorescence Imaging ◽  
Colloidal Stability ◽  
Silica Nanoparticle ◽  
Photothermal Conversion ◽  
Normal Tissues ◽  
Irradiation Power

Conventional cancer phototherapy with single modality suffers from low therapeutic efficacy and undesired posttreatment damage for adjacent normal tissues. Therefore, the lower NIR laser irradiation power is vital to the reduction or preclusion of risk of scalds and burns in normal tissues. Herein, we rationally proposed a novel multifunctional nanocomplex, which enabled good magnetic resonance (MR) imaging contrast effect and promising photothermal conversion efficacy. The prepared core/shell nanocomplexes [MSN-Ce6@PDA (Mn)] were composed of chlorin e6-embedded mesoporous silica/nanoparticle composites as the cores, and then polydopamine and manganese ions were conjugated on the cores to form protective shells. The MSN-Ce6@PDA (Mn) nanocomplexes revealed superior properties in colloidal stability, photothermal conversion, reaction oxygen species generation, magnetic resonance imaging, etc. Under the guidance of MR and fluorescence imaging, these MSN-Ce6@PDA (Mn) nanocomplexes were found to be primarily accumulated in the MDA-MB-231 tumor area. Furthermore, the combined photodynamic and photothermal therapy exhibited strong inhibition to the growth of MDA-MB-231 tumor in vitro and in vivo. Besides, the MSN-Ce6@PDA (Mn) nanocomplexes also exhibited excellent biocompatibility and low damage to the healthy animals. Hence, the results demonstrated that the prepared MSN-Ce6@PDA (Mn) nanocomplex would be a promising potential for multimodal imaging-guided phototherapy.

Large-scale synthesis of Pb1−La TiO3 ceramic powders by molten salt method

2006 ◽  
Vol 420 (1-2) ◽  
pp. 273-277 ◽  
Author(s):  
Zongying Cai ◽  
Xianran Xing ◽  
Ranbo Yu ◽  
Guirong Liu ◽  
Qifeng Xing
Keyword(s):  
Molten Salt ◽  
Large Scale ◽  
Tio3 Ceramic ◽  
Molten Salt Method ◽  
Ceramic Powders ◽  
Large Scale Synthesis

scholarly journals Microstructure and Morphology Control of Potassium Magnesium Titanates and Sodium Iron Titanates by Molten Salt Synthesis

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1577 ◽  
Author(s):  
Haoran Zhang ◽  
Mengshuo Li ◽  
Ze Zhou ◽  
Liming Shen ◽  
Ningzhong Bao
Keyword(s):  
Molten Salt ◽  
High Performance ◽  
Large Scale ◽  
Raw Materials ◽  
Synthesis Method ◽  
Molten Salt Synthesis ◽  
Molar Ratio ◽  
Molten Salt Method ◽  
Experimental Conditions ◽  
Potassium Magnesium

Titanates materials have attracted considerable interest due to their unusual functional and structural properties for many applications such as high-performance composites, devices, etc. Thus, the development of a large-scale synthesis method for preparing high-quality titanates at a low cost is desired. In this study, a series of quaternary titanates including K0.8Mg0.4Ti1.6O4, Na0.9Mg0.45Ti1.55O4, Na0.75Fe0.75Ti0.25O2, NaFeTiO4, and K2.3Fe2.3Ti5.7O16 are synthesized by a simple molten salt method using inexpensive salts of KCl and NaCl. The starting materials, intermediate products, final products, and their transformations were studied by using TG-DSC, XRD, SEM, and EDS. The results show that the grain size, morphology, and chemical composition of the synthesized quaternary titanates can be controlled simply by varying the experimental conditions. The molar ratio of mixed molten salts is critical to the morphology of products. When KCl:NaCl = 3:1, the morphology of K0.8Mg0.4Ti1.6O4 changes from platelet to board and then bar-like by increasing the molar ratio of molten salt (KCl–NaCl) to raw materials from 0.7 to 2.5. NaFeTiO4 needles and Na0.75Fe0.75Ti0.25O2 platelets are obtained when the molar ratio of molten salt (NaCl) to raw materials is 4. Pure phase of Na0.9Mg0.45Ti1.55O4 and K2.3Fe2.3Ti5.7O16 are also observed. The formation and growth mechanisms of both potassium magnesium titanates and sodium iron titanates are discussed based on the characterization results.

Sign in / Sign up

Export Citation Format

Share Document