Development of a Fluorescent Nanofibrous Template by In Situ SNAr Polymerization of Fluorine-Containing Terphenyls with Aliphatic Diols: Self-Assembly and Optical and Liquid Crystal Properties

Calixarene is the third generation of the main compound. Its molecular recognition, simulation enzyme catalysis, molecular catalysis, analytical chemistry, self-assembly, and other areas of research have made great progress. calixarene represent a well-known family of macrocyclic molecules with broad range of potential applications in engineering materials fields. calixarene derivatives for simulating biological system, or in the form of new drug molecules targeting molecule reaction vessel, molecular switches, etc.; Under certain conditions because some new calixarene derivatives with the liquid crystal properties, so some new type of liquid crystal materials can be screened and prepared.

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Evidence of nanodiamond-self-assembly in a liquid crystal, and the consequent impacts on the liquid crystal properties

AIP Advances ◽

10.1063/1.4993455 ◽

2017 ◽

Vol 7 (7) ◽

pp. 075008 ◽

Cited By ~ 4

Author(s):

Rajratan Basu ◽

Nicole Skaggs ◽

Samuel Shalov ◽

Peter Brereton

Keyword(s):

Liquid Crystal ◽

Self Assembly ◽

Crystal Properties

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Self-assembly and thermotropic liquid crystal properties of a hexavacant germanomolybdate: [Ge2Mo16O58]12−

CrystEngComm ◽

10.1039/c4ce00536h ◽

2014 ◽

Vol 16 (29) ◽

pp. 6784 ◽

Cited By ~ 4

Author(s):

Yan-Qing Gao ◽

Zhi-Ming Zhang ◽

Jian-Qiang Shen ◽

Yue Jia ◽

Zhu-Jun Liu ◽

...

Keyword(s):

Liquid Crystal ◽

Self Assembly ◽

Thermotropic Liquid Crystal ◽

Crystal Properties

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Colloidal Material Box: In-situ Observations of Colloidal Self-Assembly and Liquid Crystal Phase Transitions in Microgravity

Microgravity Science and Technology ◽

10.1007/s12217-016-9497-6 ◽

2016 ◽

Vol 28 (2) ◽

pp. 179-188 ◽

Cited By ~ 5

Author(s):

WeiBin Li ◽

Ding Lan ◽

ZhiBin Sun ◽

BaoMing Geng ◽

XiaoQing Wang ◽

...

Keyword(s):

Phase Transitions ◽

Liquid Crystal ◽

Self Assembly ◽

Crystal Phase ◽

Liquid Crystal Phase ◽

Colloidal Material ◽

In Situ Observations

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

Science Advances ◽

10.1126/sciadv.aay5986 ◽

2020 ◽

Vol 6 (13) ◽

pp. eaay5986 ◽

Cited By ~ 1

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.

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

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100083035 ◽

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.

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Reversible microscale assembly of nanoparticles driven by the phase transition of a thermotropic liquid crystal

10.26434/chemrxiv.5691169 ◽

2017 ◽

Author(s):

Niamh Mac Fhionnlaoich ◽

Stephen Schrettl ◽

Nicholas B. Tito ◽

Ye Yang ◽

Malavika Nair ◽

...

Keyword(s):

Phase Transition ◽

Liquid Crystal ◽

Self Assembly ◽

Nematic Phase ◽

Hierarchical Control ◽

Building Blocks ◽

Model System ◽

Microscopic Level ◽

Reversible Process ◽

Thermotropic Liquid Crystal

The arrangement of nanoscale building blocks into patterns with microscale periodicity is challenging to achieve via self-assembly processes. Here, we report on the phase transition-driven collective assembly of gold nanoparticles in a thermotropic liquid crystal. A temperature-induced transition from the isotropic to the nematic phase leads to the assembly of individual nanometre-sized particles into arrays of micrometre-sized aggregates, whose size and characteristic spacing can be tuned by varying the cooling rate. This fully reversible process offers hierarchical control over structural order on the molecular, nanoscopic, and microscopic level and is an interesting model system for the programmable patterning of nanocomposites with access to micrometre-sized periodicities.

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Probing the Dynamic Self-Assembly Behaviour of Photoswitchable Wormlike Micelles in Real Time

10.26434/chemrxiv.7098695 ◽

2018 ◽

Author(s):

Elaine A. Kelly ◽

Judith E. Houston ◽

Rachel Evans

Keyword(s):

Real Time ◽

Absorption Spectroscopy ◽

Self Assembly ◽

Uv Light ◽

Wormlike Micelles ◽

Tetraethylene Glycol ◽

Light Illumination ◽

First Time ◽

Dependent Processes

Understanding the dynamic self-assembly behaviour of azobenzene photosurfactants (AzoPS) is crucial to advance their use in controlled release applications such asdrug delivery and micellar catalysis. Currently, their behaviour in the equilibrium cis-and trans-photostationary states is more widely understood than during the photoisomerisation process itself. Here, we investigate the time-dependent self-assembly of the different photoisomers of a model neutral AzoPS, <a>tetraethylene glycol mono(4′,4-octyloxy,octyl-azobenzene) </a>(C8AzoOC8E4) using small-angle neutron scattering (SANS). We show that the incorporation of in-situUV-Vis absorption spectroscopy with SANS allows the scattering profile, and hence micelle shape, to be correlated with the extent of photoisomerisation in real-time. It was observed that C8AzoOC8E4could switch between wormlike micelles (transnative state) and fractal aggregates (under UV light), with changes in the self-assembled structure arising concurrently with changes in the absorption spectrum. Wormlike micelles could be recovered within 60 seconds of blue light illumination. To the best of our knowledge, this is the first time the degree of AzoPS photoisomerisation has been tracked in-situthrough combined UV-Vis absorption spectroscopy-SANS measurements. This technique could be widely used to gain mechanistic and kinetic insights into light-dependent processes that are reliant on self-assembly.

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In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

10.26434/chemrxiv.9876395.v1 ◽

2019 ◽

Author(s):

Hao Wu ◽

Jeffrey Ting ◽

Siqi Meng ◽

Matthew Tirrell

Keyword(s):

Small Angle ◽

Self Assembly ◽

Electrostatic Interactions ◽

Polyelectrolyte Complex ◽

Time Resolved ◽

X Ray ◽

X Ray Scattering ◽

Kinetics Of ◽

Ray Scattering

We have directly observed the in situ self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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Orientational self-assembly of nanoparticles in nematic droplets

Nanoscale Advances ◽

10.1039/d1na00089f ◽

2021 ◽

Author(s):

Natália Tomašovičová ◽

Marianna Batkova ◽

Ivan Batko ◽

Veronika Lacková ◽

Vlasta Zavišová ◽

...

Keyword(s):

Liquid Crystal ◽

Self Assembly

The interplay between the anchoring of liquid crystal (LC) molecules at the substrate and at the surface of nanoparticles (NPs) results in an orientational self-assembly of nanoparticles in sessile nematic droplets.

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