Porphyrin Nanofiber Bundles from Phase-Transfer Ionic Self-Assembly and Their Photocatalytic Self-Metallization

2006 ◽  
Vol 18 (19) ◽  
pp. 2557-2560 ◽  
Author(s):  
Z. Wang ◽  
K. J. Ho ◽  
C. J. Medforth ◽  
J. A. Shelnutt
Keyword(s):  
Self Assembly ◽  
Phase Transfer ◽  
Nanofiber Bundles

Selectivity in Ligand Functionalization of Photocatalytic Metal Oxide Nanoparticles for Phase Transfer and Self‐Assembly Applications

2021 ◽  
Author(s):  
Rituraj Borah ◽  
Rajeshreddy Ninakanti ◽  
Gert Nuyts ◽  
Hannelore Peeters ◽  
Adrián Pedrazo-Tardajos ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Self Assembly ◽  
Phase Transfer ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles

SiO2 Beads with Quantum Dots: Synthesis and Bioapplication

2011 ◽  
Vol 306-307 ◽  
pp. 16-19
Author(s):  
Ping Yang ◽  
Norio Murase ◽  
Ai Yu Zhang ◽  
Yong Qiang Cao ◽  
Yuan Na Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Ligand Exchange ◽  
Colloidal Solution ◽  
Phase Transfer ◽  
Shell Growth ◽  
Sol Gel ◽  
High Brightness ◽  
Potential Use ◽  
Poor Solvent

Aqueous CdTe and organic CdSe/ZnS quantum dots (QDs) were encapsulated into SiO2beads using various controlled sol-gel processes. Ligand exchange is a key to adjust the QD number in each bead and get a high photoluminescence (PL). Namely, partial ligand exchange from thioglycolic acid to 3-mercaptopropyotrimethoxysilane (MPS) on the CdTe QDs enables retention of the initial PL efficiency of the QDs in water, while the simultaneous addition of a poor solvent (ethanol) resulted in regulated assembly of the QDs through condensation of hydrolyzed MPS. SiO2beads thus prepared had, for example, a diameter of 17 nm and contained 3 QDs each. The PL efficiency of these beads was 30%, while the initial PL efficiency was 38% in a colloidal solution. In addition, a method including surface silanization, phase transfer and self-assembly, and SiO2shell growth has been developed to incorporate multiple hydrophobic CdSe/ZnS QDs into SiO2beads where they are well suited for bio-application due to their high brightness, less-cytotoxic, and non-blinking nature. To investigate the potential use for labeling in bio-applications, SiO2beads with multiple QDs were conjugated with IgG using streptavidin-maleimide as linkers. This preparation method is an important step towards fabricating intensely emitting biocompatible SiO2beads impregnated with semiconductor QDs.

Phase Transfer Mediated Self-Assembly of CdTe–Polymer Nanohybrids for Uniform Fluorescent Films

2011 ◽  
Vol 21 (3) ◽  
pp. 570-575 ◽  
Author(s):  
Fu-Chun Shen ◽  
Jian Yang ◽  
Cai-Feng Wang ◽  
Li Chen ◽  
Su Chen
Keyword(s):  
Self Assembly ◽  
Phase Transfer

scholarly journals Nanoscale Control of Amyloid Self-Assembly Using Protein Phase Transfer by Host-Guest Chemistry

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Tae Su Choi ◽  
Hong Hee Lee ◽  
Young Ho Ko ◽  
Kwang Seob Jeong ◽  
Kimoon Kim ◽  
...  
Keyword(s):  
Self Assembly ◽  
Phase Transfer ◽  
Guest Chemistry

Exploring the amphiphilicity of PEGylated gold nanorods: mechanical phase transfer and self-assembly

2013 ◽  
Vol 49 (81) ◽  
pp. 9350 ◽  
Author(s):  
Maixian Liu ◽  
Wing-Cheung Law ◽  
Atcha Kopwitthaya ◽  
Xin Liu ◽  
Mark T. Swihart ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Self Assembly ◽  
Phase Transfer

Orthogonal Stimuli Trigger Self-Assembly and Phase Transfer of FeII4L4 Cages and Cargoes

2018 ◽  
Vol 140 (49) ◽  
pp. 16952-16956 ◽  
Author(s):  
Anna J. McConnell ◽  
Cally J. E. Haynes ◽  
Angela B. Grommet ◽  
Catherine M. Aitchison ◽  
Julia Guilleme ◽  
...  
Keyword(s):  
Self Assembly ◽  
Phase Transfer

Size-Dependent Phase Transfer Functionalization of Gold Nanoparticles To Promote Well-Ordered Self-Assembly

Langmuir ◽  
2017 ◽  
Vol 33 (50) ◽  
pp. 14437-14444 ◽  
Author(s):  
Florian Schulz ◽  
Steffen Tober ◽  
Holger Lange
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Phase Transfer ◽  
Size Dependent

scholarly journals Synthesis and Self-assembly of DMPC-conjugated Gold Nanoparticles

2007 ◽  
Vol 1061 ◽  
Author(s):  
Subhasish Chatterjee ◽  
Markrete Krikorian ◽  
Harry D. Gafney ◽  
Bonnie Gersten
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Phase Transfer ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Compression Isotherm ◽  
Self Assembled Monolayer ◽  
Transmission Electron ◽  
Vis Spectroscopy ◽  
Transfer Method

ABSTRACTBio-conjugated nanomaterials play a promising role in the development of novelsupramolecular structures, molecular machines, and biosensing devices. In this study, lipid-capped gold nanoparticles were synthesized and allowed to form a self-assembled monolayer structure. The nanoparticles were prepared by a phase transfer method, which involved the reduction of potassium tetrachloroaurate(III) by sodium citrate in an aqueous solution and the simultaneous transfer of the reduced species to an organic medium containing DMPC (1,2-dimyristoyl-sn-glycero-3-phosphocholine). The gold nanoparticles were characterized using Uv-vis spectroscopy and dynamic light scattering (DLS) particle-size analysis. In addition, the resulting nanoparticles were examined using transmission electron microscopy (TEM). The Langmuir-Blodgett (LB) technique was used to assemble the DMPC-capped nanoparticles onto a water subphase at room temperature. The measurement of the compression isotherm confirmed the assemblage of lipid capped gold nanoparticles. This method of synthesis of ordered structures utilizing molecular interactions of lipids will be useful in developing novel metamaterials and nanocircuits.

Phase-Transfer Assisted Self-Assembly of Noble Metal Nanoparticles

2012 ◽  
Vol 136 (1) ◽  
pp. 52-58
Author(s):  
H. Liu ◽  
F. Ye ◽  
W. Hu ◽  
Y. Ding ◽  
J. Yang
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Self Assembly ◽  
Phase Transfer ◽  
Noble Metal Nanoparticles
Sign in / Sign up

Export Citation Format

Share Document