Thermal Transitions in Dry and Hydrated Layer-by-Layer Assemblies Exhibiting Linear and Exponential Growth

ACS Nano ◽  
2012 ◽  
Vol 6 (7) ◽  
pp. 6174-6184 ◽  
Author(s):  
Ajay Vidyasagar ◽  
Choonghyun Sung ◽  
Randall Gamble ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Exponential Growth ◽  
Layer By Layer ◽  
Thermal Transitions ◽  
Hydrated Layer

pH-Dependent Thermal Transitions in Hydrated Layer-by-Layer Assemblies Containing Weak Polyelectrolytes

2012 ◽  
Vol 45 (22) ◽  
pp. 9169-9176 ◽  
Author(s):  
Ajay Vidyasagar ◽  
Choonghyun Sung ◽  
Kristen Losensky ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Layer By Layer ◽  
Thermal Transitions ◽  
Hydrated Layer ◽  
Ph Dependent ◽  
Weak Polyelectrolytes

Thermal transitions in hydrated layer-by-layer assemblies observed using electrochemical impedance spectroscopy

Soft Matter ◽  
2014 ◽  
Vol 10 (34) ◽  
pp. 6467-6476 ◽  
Author(s):  
Choonghyun Sung ◽  
Katelin Hearn ◽  
Jodie Lutkenhaus
Keyword(s):  
Charge Transfer ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Charge Transfer Resistance ◽  
Thermal Transition ◽  
Layer By Layer ◽  
Thermal Transitions ◽  
Transfer Resistance ◽  
Hydrated Layer

Layer-by-layer assemblies exhibit increased conductivity and decreased charge transfer resistance upon heating through the thermal transition.

The effect of nanoparticle location and shape on thermal transitions observed in hydrated layer-by-layer assemblies

Soft Matter ◽  
2014 ◽  
Vol 10 (40) ◽  
pp. 8107-8115 ◽  
Author(s):  
Joseph T. Puhr ◽  
Benjamin E. Swerdlow ◽  
Dariya K. Reid ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Thermal Transition ◽  
Layer By Layer ◽  
Thermal Transitions ◽  
Lbl Assembly ◽  
Hydrated Layer ◽  
Higher Temperature

When nanoparticles are inserted at different locations within a layer-by-layer (LbL) assembly, a second higher temperature thermal transition appears under select conditions.

Controlled exponential growth in layer-by-layer multilayers using high gravity fields

2014 ◽  
Vol 2 (34) ◽  
pp. 14048 ◽  
Author(s):  
Chao Jiang ◽  
Xiaolin Liu ◽  
Caijun Luo ◽  
Yajun Zhang ◽  
Lei Shao ◽  
...  
Keyword(s):  
Exponential Growth ◽  
High Gravity ◽  
Layer By Layer ◽  
Gravity Fields

Monitoring layer-by-layer self-assembly process of natural polyelectrolytes by fluorescent bioconjugate with aggregation-induced emission characteristic

2014 ◽  
Vol 2 (47) ◽  
pp. 8406-8411 ◽  
Author(s):  
Jingwei Jia ◽  
Zhengke Wang ◽  
Wentao Lu ◽  
Ling Yang ◽  
Qingwen Wu ◽  
...  
Keyword(s):  
Exponential Growth ◽  
Self Assembly ◽  
Fluorescence Spectra ◽  
Multilayer Films ◽  
Emission Characteristic ◽  
Layer By Layer ◽  
Assembly Process ◽  
Characteristic P ◽  
Aggregation Induced Emission

Exponential growth of multilayer films was monitored by fluorescence spectra using aggregation-induced-emission fluorogens, which is in accordance with ellipsometry results.

A Comparison of Thermal Transitions in Dip- and Spray-Assisted Layer-by-Layer Assemblies

Langmuir ◽  
2013 ◽  
Vol 29 (28) ◽  
pp. 8907-8913 ◽  
Author(s):  
Choonghyun Sung ◽  
Katelin Hearn ◽  
Dariya K. Reid ◽  
Ajay Vidyasagar ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Layer By Layer ◽  
Thermal Transitions

Comparison of KBr and NaCl effects on the glass transition temperature of hydrated layer-by-layer assemblies

2018 ◽  
Vol 149 (16) ◽  
pp. 163317 ◽  
Author(s):  
Joshua T. O’Neal ◽  
Kathryn G. Wilcox ◽  
Yanpu Zhang ◽  
Ian M. George ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Layer By Layer ◽  
Hydrated Layer

scholarly journals Layer-by-Layer Films from Wine: An Investigation of an Exponential Growth Process

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Marcio N. Gomes ◽  
Jackeline B. Brito ◽  
Josmary R. Silva ◽  
Nara C. de Souza
Keyword(s):  
Exponential Growth ◽  
Deposition Time ◽  
Linear Growth ◽  
Film Growth ◽  
Layer By Layer ◽  
Constant Amount ◽  
Force Microscopy ◽  
Growth Regime ◽  
Atomic Force ◽  
Microscopy Images

We report on the preparation and study of layer-by-layer films of wine alternated with bovine serum albumin (BSA). We found that the exponential and/or linear growth of the films is dependent on the deposition time. Atomic force microscopy images were analysed using scale laws and the fractal dimension, and the results suggested that the BSA/wine film growth regime is determined by sub-bilayer or bilayer growth. Exponential growth was associated with a sub-bilayer deposition regime, whereas linear growth was associated with a bilayer deposition in which a constant amount of material is deposited.

Microstructural characterization of CoPtCr/Cr thin film disks by cross-section TEM and elongated probe micro-diffraction

1991 ◽  
Vol 49 ◽  
pp. 762-763
Author(s):  
M.A. Parker ◽  
K.E. Johnson ◽  
C. Hwang ◽  
A. Bermea
Keyword(s):  
Magnetic Recording ◽  
Electron Probe ◽  
Microstructural Characterization ◽  
Crystallographic Structure ◽  
Recording Media ◽  
Layer By Layer ◽  
Cross Sectional ◽  
New Techniques ◽  
Polished Side

We have reported the dependence of the magnetic and recording properties of CoPtCr recording media on the thickness of the Cr underlayer. It was inferred from XRD data that grain-to-grain epitaxy of the Cr with the CoPtCr was responsible for the interaction observed between these layers. However, no cross-sectional TEM (XTEM) work was performed to confirm this inference. In this paper, we report the application of new techniques for preparing XTEM specimens from actual magnetic recording disks, and for layer-by-layer micro-diffraction with an electron probe elongated parallel to the surface of the deposited structure which elucidate the effect of the crystallographic structure of the Cr on that of the CoPtCr.XTEM specimens were prepared from magnetic recording disks by modifying a technique used to prepare semiconductor specimens. After 3mm disks were prepared per the standard XTEM procedure, these disks were then lapped using a tripod polishing device. A grid with a single 1mmx2mm hole was then glued with M-bond 610 to the polished side of the disk.

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