In Situ Monitored Self-Assembly of Three-Dimensional Polyhedral Nanostructures

Nano Letters ◽  
2016 ◽  
Vol 16 (6) ◽  
pp. 3655-3660 ◽  
Author(s):  
Chunhui Dai ◽  
Jeong-Hyun Cho
Keyword(s):  
Self Assembly ◽  
Three Dimensional

In vitro and in vivo polysaccharides assembly: ultrastructural and cytochemical study of growing plant cell wall components.

1978 ◽  
Vol 36 (2) ◽  
pp. 434-435
Author(s):  
D. Reis ◽  
B. Vian ◽  
J. C. Roland
Keyword(s):  
Cell Wall ◽  
Self Assembly ◽  
Plant Cell Wall ◽  
Higher Plants ◽  
Three Dimensional ◽  
Cytochemical Study ◽  
Wall Components

Wall morphogenesis in higher plants is a problem still open to controversy. Until now the possibility of a transmembrane control and the involvement of microtubules were mostly envisaged. Self-assembly processes have been observed in the case of walls of Chlamydomonas and bacteria. Spontaneous gelling interactions between xanthan and galactomannan from Ceratonia have been analyzed very recently. The present work provides indications that some processes of spontaneous aggregation could occur in higher plants during the formation and expansion of cell wall.Observations were performed on hypocotyl of mung bean (Phaseolus aureus) for which growth characteristics and wall composition have been previously defined.In situ, the walls of actively growing cells (primary walls) show an ordered three-dimensional organization (fig. 1). The wall is typically polylamellate with multifibrillar layers alternately transverse and longitudinal. Between these layers intermediate strata exist in which the orientation of microfibrils progressively rotates. Thus a progressive change in the morphogenetic activity occurs.

In Situ Visualization of Layer Transitions during Convective Self-Assembly in a Sessile Drop

2007 ◽  
Vol 31 ◽  
pp. 117-119
Author(s):  
Li Gao ◽  
Qing Feng Yan ◽  
C.C. Wong ◽  
Yet Ming Chiang
Keyword(s):  
Self Assembly ◽  
Sessile Drop ◽  
Three Dimensional ◽  
Colloidal Crystals ◽  
Layer Transition ◽  
Simple Method ◽  
Colloidal Spheres ◽  
In Situ Visualization ◽  
Set Up

Convective self-assembly of colloidal spheres provides a simple method for fabricating two and three dimensional colloidal crystals. In this work, we investigated the layer transitions phenomena during colloidal self-assembly in a sessile drop by using an in-situ videoscopic set-up. The effects of surface charge, colloidal concentration, and surfactant additions were examined. The results show that the chemical environment plays an important role in colloidal self-assembly. In the case of ordered growth, different layer transition phenomena were observed when the colloidal concentration is different.

Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78538-78547 ◽  
Author(s):  
Haiming Cheng ◽  
Huafei Xue ◽  
Guangdong Zhao ◽  
Changqing Hong ◽  
Xinghong Zhang
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Self Assembly ◽  
In Situ Polymerization ◽  
Three Dimensional ◽  
One Pot ◽  
Hierarchical Porous ◽  
Composite Aerogels ◽  
Polymerization Induced Phase Separation

In this work, hierarchical porous graphene-based composite aerogels are synthesized by a simple and facile one-pot polymerization-induced phase separation.

Seamless Signal Transduction from Three-Dimensional Cultured Cells to a Superoxide Anions Biosensor via In Situ Self-Assembly of Dipeptide Hydrogel

2017 ◽  
Vol 89 (23) ◽  
pp. 12843-12849 ◽  
Author(s):  
Meiling Lian ◽  
Liang Xu ◽  
Xiaowen Zhu ◽  
Xu Chen ◽  
Wensheng Yang ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Self Assembly ◽  
Cultured Cells ◽  
Three Dimensional ◽  
Superoxide Anions

Three-dimensional bacterial cellulose-electrospun membrane hybrid structures fabricated through in-situ self-assembly

Cellulose ◽  
2018 ◽  
Vol 25 (12) ◽  
pp. 6823-6830 ◽  
Author(s):  
Muhammad Awais Naeem ◽  
Mensah Alfred ◽  
Pengfei Lv ◽  
Huimin Zhou ◽  
Qufu Wei
Keyword(s):  
Bacterial Cellulose ◽  
Self Assembly ◽  
Three Dimensional ◽  
Hybrid Structures ◽  
Electrospun Membrane

On-chip integration of novel Au electrode with a higher order three-dimensional layer stack nanostructure for surface-enhanced Raman spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 73194-73201 ◽  
Author(s):  
Akinobu Yamaguchi ◽  
Takao Fukuoka ◽  
Ryohei Hara ◽  
Kazuhisa Kuroda ◽  
Ryo Takahashi ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Self Assembly ◽  
Three Dimensional ◽  
Surface Enhanced Raman Spectroscopy ◽  
Higher Order ◽  
Au Electrode ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
On Chip

We develop a novel in situ surface-enhanced Raman spectroscopy (SERS) platform with three-dimensional nanostructure gold electrodes using the competitive self-assembly between dielectrophoresis and convective aggregation.

scholarly journals Soft crystal martensites: An in situ resonant soft x-ray scattering study of a liquid crystal martensitic transformation

2020 ◽  
Vol 6 (13) ◽  
pp. eaay5986 ◽  
Author(s):  
Hyeong Min Jin ◽  
Xiao Li ◽  
James A. Dolan ◽  
R. Joseph Kline ◽  
José A. Martínez-González ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phase Transformations ◽  
Self Assembly ◽  
Three Dimensional ◽  
X Ray ◽  
X Ray Scattering ◽  
Martensitic Phase Transformations ◽  
Soft Crystal ◽  
Ray Scattering

Liquid crystal blue phases (BPs) are three-dimensional soft crystals with unit cell sizes orders of magnitude larger than those of classic, atomic crystals. The directed self-assembly of BPs on chemically patterned surfaces uniquely enables detailed in situ resonant soft x-ray scattering measurements of martensitic phase transformations in these systems. The formation of twin lamellae is explicitly identified during the BPII-to-BPI transformation, further corroborating the martensitic nature of this transformation and broadening the analogy between soft and atomic crystal diffusionless phase transformations to include their strain-release mechanisms.

Correlated Studies of Cellular Interactions Using TEM, Freeze Etching, and SEM

1974 ◽  
Vol 32 ◽  
pp. 320-321
Author(s):  
J. P. Revel
Keyword(s):  
Developmental Stages ◽  
Three Dimensional ◽  
Cell Movement ◽  
Cellular Interactions ◽  
Serial Sections ◽  
Cell Sheets ◽  
Freeze Etching ◽  
Early Developmental

Movement of individual cells or of cell sheets and complex patterns of folding play a prominent role in the early developmental stages of the embryo. Our understanding of these processes is based on three- dimensional reconstructions laboriously prepared from serial sections, and from autoradiographic and other studies. Many concepts have also evolved from extrapolation of investigations of cell movement carried out in vitro. The scanning electron microscope now allows us to examine some of these events in situ. It is possible to prepare dissections of embryos and even of tissues of adult animals which reveal existing relationships between various structures more readily than used to be possible vithout an SEM.

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