Self-Assembly and Biphasic Iron-Binding Characteristics of Mms6, A Bacterial Protein That Promotes the Formation of Superparamagnetic Magnetite Nanoparticles of Uniform Size and Shape

2011 ◽  
Vol 13 (1) ◽  
pp. 98-105 ◽  
Author(s):  
Lijun Wang ◽  
Tanya Prozorov ◽  
Pierre E. Palo ◽  
Xunpei Liu ◽  
David Vaknin ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Self Assembly ◽  
Iron Binding ◽  
Bacterial Protein ◽  
Uniform Size ◽  
Binding Characteristics ◽  
Size And Shape

The design of multifunctional nanomaterials through size and shape controlled nanocrystal self-assembly

2021 ◽  
Author(s):  
Christopher B Murray ◽  
Daniel Rosen ◽  
Shengsong Yang ◽  
Yifan Ning ◽  
Cherie R. Kagan ◽  
...  
Keyword(s):  
Self Assembly ◽  
Size And Shape ◽  
Shape Controlled ◽  
Multifunctional Nanomaterials

scholarly journals Fabrication of Spherical Titania Inverse Opal Structures Using Electro-Hydrodynamic Atomization

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3905 ◽  
Author(s):  
Jong-Min Lim ◽  
Sehee Jeong
Keyword(s):  
Composite Structure ◽  
Self Assembly ◽  
Interstitial Site ◽  
Titania Nanoparticles ◽  
Face Centered Cubic ◽  
Inverse Opal ◽  
Uniform Size ◽  
Anatase Titania ◽  
Inverse Opal Structure ◽  
Fcc Structure

Spherical PS/HEMA opal structure and spherical titania inverse opal structure were fabricated by self-assembly of colloidal nanoparticles in uniform aerosol droplets generated with electro-hydrodynamic atomization method. When a solution of PS/HEMA nanoparticles with uniform size distribution was used, PS/HEMA nanoparticles self-assembled into a face-centered cubic (FCC) structure by capillary force with the evaporation of the solvent in aerosol droplet, resulting in a spherical opal structure. When PS/HEMA nanoparticles and anatase titania nanoparticles were dispersed simultaneously into the solution, titania nanoparticles with relatively smaller size were assembled at the interstitial site of PS/HEMA nanoparticles packed in the FCC structure, resulting in a spherical opal composite structure. Spherical titania inverse opal structure was fabricated after removing PS/HEMA nanoparticles from the spherical opal composite structure by calcination.

Designing compartmentalized hydrogel microparticles for cell encapsulation and scalable 3D cell culture

2015 ◽  
Vol 3 (3) ◽  
pp. 353-360 ◽  
Author(s):  
Yen-Chun Lu ◽  
Wei Song ◽  
Duo An ◽  
Beum Jun Kim ◽  
Robert Schwartz ◽  
...  
Keyword(s):  
Cell Culture ◽  
Production Rate ◽  
3D Cell Culture ◽  
Cell Encapsulation ◽  
Uniform Size ◽  
Size And Shape ◽  
Hydrogel Microparticles ◽  
High Production Rate ◽  
High Production

Compartmentalized hydrogel microparticles with high production rate, uniform size and shape, and tunable ECM support were developed for various scalable 3D cell culture applications.

scholarly journals Release of proteins and enzymes from vesicular compartments by alternating magnetic fields

2015 ◽  
Vol 17 (24) ◽  
pp. 15579-15588 ◽  
Author(s):  
Andrew Booth ◽  
Inmaculada C. Pintre ◽  
Yue Lin ◽  
Julie E. Gough ◽  
Simon J. Webb
Keyword(s):  
Magnetic Fields ◽  
Magnetite Nanoparticles ◽  
Self Assembly ◽  
The Self ◽  
Catalytically Active ◽  
Alternating Magnetic Fields

The self-assembly of avidin, biotinylated vesicles and biotinylated (3-aminopropyl)triethoxysilane-coated magnetite nanoparticles gave a nanomaterial able to magnetically release catalytically active enzymes from vesicular compartments.

Synthesis of Magnetite Nanoparticles of Different Size and Shape by Interplay of Two Different Surfactants

2019 ◽  
Vol 49 (6) ◽  
pp. 829-835 ◽  
Author(s):  
Vinícius Mariani Lenart ◽  
Rozane de Fátima Turchiello ◽  
Maria Pilar Calatayud ◽  
Gerardo Fabián Goya ◽  
Sergio Leonardo Gómez
Keyword(s):  
Magnetite Nanoparticles ◽  
Size And Shape

Nanoindentation Assisted Self-Assembly of Quantum Dots

2006 ◽  
Author(s):  
Curtis Taylor ◽  
Eric Stach ◽  
Gregory Salamo ◽  
Ajay Malshe
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Surface Strain ◽  
Ex Situ ◽  
Atomic Step ◽  
Uniform Size ◽  
Force Microscopy ◽  
Atomic Force ◽  
And Performance ◽  
Spatial Positioning

The ability to pattern quantum dots with high spatial positioning and uniform size is critical for the realization of future electronic devices with novel properties and performance that surpass present technology. This work discusses the exploration of an innovative nanopatterning technique to direct the self-assembly of nanostructures. The technique focuses on perturbing surface strain energy by nanoindentation in order to mechanically bias quantum dot nucleation. Growth of InAs quantum dots on nanoindent templates is performed using molecular beam epitaxy (MBE). The effect of indent spacing and size on the patterned growth is investigated. The structural analysis of the quantum dots including spatial ordering, size, and shape are characterized by ex-situ atomic force microscopy (AFM). Results reveal that the indent patterns clearly bias nucleation with dot structures selectively growing on top of each indent. It is speculated that the biased nucleation is due to a combination of favorable surface strain attributed to subsurface dislocation strain fields and/or multi-atomic step formation at the indent sites, which leads to increased adatom diffusion on the patterned area.

Some properties of spherical and rod-shaped semiconductor and metal nanocrystals

2002 ◽  
Vol 74 (9) ◽  
pp. 1675-1692 ◽  
Author(s):  
Christy F. Landes ◽  
Stephan Link ◽  
Mona B. Mohamed ◽  
Babak Nikoobakht ◽  
Mostafa A. El-Sayed
Keyword(s):  
Raman Scattering ◽  
Spherical Particle ◽  
Gold Nanorods ◽  
Self Assembly ◽  
Surrounding Medium ◽  
Cdse Nanocrystals ◽  
Size And Shape ◽  
Metal Nanocrystals ◽  
Enhanced Raman Scattering

In this paper, we summarize our results on the effect of changing size and shape of semiconductor and metallic nanocrystals. The change in size (from 3.5 to 1.1 nm) and shape (from spherical to rod) of CdSe nanocrystals is found to affect both their optical and nonradiative properties. In gold quasi-spherical nanocrystals, results on the dependence of the electron-phonon relaxation of the surrounding medium are presented. For gold nanorods, results and conclusions on the mechanism of their self-assembly are presented. Enhanced Raman scattering on their surfaces is studied and compared with that on spherical particle surfaces.

Synthesis of size and shape controlled PbS nanocrystals and their self-assembly

2010 ◽  
Vol 355 (1-3) ◽  
pp. 114-120 ◽  
Author(s):  
Zhihui Zhao ◽  
Kai Zhang ◽  
Junhu Zhang ◽  
Kai Yang ◽  
Chengzhi He ◽  
...  
Keyword(s):  
Self Assembly ◽  
Size And Shape ◽  
Pbs Nanocrystals ◽  
Shape Controlled

Nanorods of Tellurium: Synthesis and Self-Assembly

2006 ◽  
Vol 6 (3) ◽  
pp. 719-725 ◽  
Author(s):  
Sudip K. Batabyal ◽  
C. Basu ◽  
A. R. Das ◽  
G. S. Sanyal
Keyword(s):  
Hydrogen Peroxide ◽  
Self Assembly ◽  
Solution Phase ◽  
Simple Solution ◽  
Experimental Conditions ◽  
Oxidizing Agents ◽  
Phase Approach ◽  
Size And Shape

A simple solution phase approach is described to prepare tellurium nanorods which undergo morphological modifications to yield different microstructures under varied experimental conditions. The morphology of the prepared products is drastically altered in presence of a few oxidizing agents such as sodium oxychloride (NaOCl), hydrogen peroxide (H2O2) etc. The effects of poly (sodium 4-styrene sulphonate) (PSS) and Isooctyl phenoxy poly oxyethanol (TritonX-100) on the size and shape of the products in presence of air/NaOCl have also been monitored.

Recreating nature with dendrite‐like self‐assembly of magnetite nanoparticles

2014 ◽  
Vol 9 (9) ◽  
pp. 613-616 ◽  
Author(s):  
Dolores Reyman ◽  
Raquel Serrano
Keyword(s):  
Magnetite Nanoparticles ◽  
Self Assembly
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