scholarly journals 3D Nanometer-Scale Study of Coexisting Bicontinuous Morphologies in a Block Copolymer/Homopolymer Blend

2006 ◽  
Vol 27 (17) ◽  
pp. 1424-1429 ◽  
Author(s):  
Hiroshi Jinnai ◽  
Hirokazu Hasegawa ◽  
Yukihiro Nishikawa ◽  
G. J. Agur Sevink ◽  
Michael B. Braunfeld ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Nanometer Scale

Spontaneous formation of nanometer scale tubular vesicles in aqueous mixtures of lipid and block copolymer amphiphiles

Soft Matter ◽  
2017 ◽  
Vol 13 (6) ◽  
pp. 1107-1115 ◽  
Author(s):  
Seng Koon Lim ◽  
Andrew S. W. Wong ◽  
Hans-Peter M. de Hoog ◽  
Padmini Rangamani ◽  
Atul N. Parikh ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Nanometer Scale ◽  
Aqueous Mixtures ◽  
Spontaneous Formation

Large-Area, Nanometer-Scale Discrete Doping of Semiconductors via Block Copolymer Self-Assembly

2015 ◽  
Vol 2 (18) ◽  
pp. 1500421 ◽  
Author(s):  
Bhooshan C. Popere ◽  
Boris Russ ◽  
Andrew T. Heitsch ◽  
Peter Trefonas ◽  
Rachel A. Segalman
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Nanometer Scale ◽  
Large Area

Nanometer Scale Alignment of Block-Copolymer Domains by Means of a Scanning Probe Tip

2014 ◽  
Vol 26 (19) ◽  
pp. 2999-3002 ◽  
Author(s):  
Jonathan R. Felts ◽  
M. Serdar Onses ◽  
John A. Rogers ◽  
William P. King
Keyword(s):  
Block Copolymer ◽  
Scanning Probe ◽  
Nanometer Scale

Analyzing reactions of single mechanoenzyme molecules by light microscopy

1992 ◽  
Vol 50 (1) ◽  
pp. 426-427
Author(s):  
Jeff Gelles
Keyword(s):  
Image Processing ◽  
Reaction Mechanisms ◽  
Transient State ◽  
Nanometer Scale ◽  
Reaction Intermediates ◽  
Enzyme Molecule ◽  
Directed Movement ◽  
Enzyme Molecules ◽  
Individual Enzyme ◽  
Single Reaction

Mechanoenzymes are enzymes which use a chemical reaction to power directed movement along biological polymer. Such enzymes include the cytoskeletal motors (e.g., myosins, dyneins, and kinesins) as well as nucleic acid polymerases and helicases. A single catalytic turnover of a mechanoenzyme moves the enzyme molecule along the polymer a distance on the order of 10−9 m We have developed light microscope and digital image processing methods to detect and measure nanometer-scale motions driven by single mechanoenzyme molecules. These techniques enable one to monitor the occurrence of single reaction steps and to measure the lifetimes of reaction intermediates in individual enzyme molecules. This information can be used to elucidate reaction mechanisms and determine microscopic rate constants. Such an approach circumvents difficulties encountered in the use of traditional transient-state kinetics techniques to examine mechanoenzyme reaction mechanisms.

Microstructural characterization of sol-gel coating on PET films

1994 ◽  
Vol 52 ◽  
pp. 886-887
Author(s):  
R. T. Chen ◽  
R.A. Norwood
Keyword(s):  
Ion Beam ◽  
Sol Gel ◽  
Industrial Applications ◽  
Hard Coatings ◽  
Nanometer Scale ◽  
Ion Beam Sputtering ◽  
Process Technology ◽  
Refractive Index Measurement ◽  
Organically Modified ◽  
Pet Films

Sol-gel processing has been used to control the structure of a material on a nanometer scale in preparing advanced ceramics and glasses. Film coating using the sol-gel process was also found to be a viable process technology in applications such as optical, porous, antireflection and hard coatings. In this study, organically modified silicate (Ormosil) coatings are applied to PET films for various industrial applications. Sol-gel materials are known to exhibit nanometer scale structures which havepreviously been characterized by small-angle X-ray scattering (SAXS), neutron scattering and light scattering. Imaging of the ultrafine sol-gel structures has also been performed using an ultrahigh resolution replica/TEM technique. The objective of this study was to evaluate the ultrafine structures inthe sol gel coatings using a direct imaging technique: atomic force microscopy (AFM). In addition, correlation of microstructures with processing parameters, coating density and other physical properties will be discussed.The materials evaluated are organically modified silicate coatings on PET film substrates. Refractive index measurement by the prism coupling method was used to assess density of the sol-gel coating.AFM imaging was performed on a Nanoscope III AFM (by Digital Instruments) using constant force mode. Solgel coating samples coated with a thin layer of Ft (by ion beam sputtering) were also examined by STM in order to confirm the structures observed in the contact type AFM. In addition, to compare the previous results, sol-gel powder samples were also prepared by ultrasonication followed by Pt/Au shadowing and examined using a JEOL 100CX TEM.

MACROSCOPIC " SINGLE CRYSTALS " OF AN S-B-S THREE BLOCK COPOLYMER

1971 ◽  
Vol 32 (C5) ◽  
pp. C5a-295-C5a-300
Author(s):  
A. KELLER ◽  
J. DLUGOSZ ◽  
M. J. FOLKES ◽  
E. PEDEMONTE ◽  
F. P. SCALISI ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Single Crystals

Preparation of La-doped TiO$lt;inf$gt;2$lt;/inf$gt; Ultrafiltration Membrane by Templating of Block Copolymer

2015 ◽  
Vol 30 (2) ◽  
pp. 171 ◽  
Author(s):  
CHEN Tao-Tao ◽  
LI Dan ◽  
JING Wen-Heng ◽  
FAN Yi-Qun ◽  
XING Wei-Hong
Keyword(s):  
Block Copolymer ◽  
Ultrafiltration Membrane ◽  
La Doped

Nanometer-scale spontaneous vibrations in a deployable truss under mechanical loading

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 2070-2076
Author(s):  
L. M. R. Hardaway ◽  
L. D. Peterson
Keyword(s):  
Mechanical Loading ◽  
Nanometer Scale
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