Self‐Assembly and Molecular Electrical Switching Property of Phthalocyanine‐Based Liquid‐Crystalline Poly(Styrene Sulfonic Acid) Compounds

AbstractWe report a new method of Thin Crystal Film deposition. In the present paper we describe the method of crystallization, structure, and optical properties of Bisbenzimidazo[2,1-a:1',2',b']anthra[2,1,9-def:6,5,10-d'e'f']-diisoquinoline-6,9-dion (mixture with cis-isomer) (abbreviated DBI PTCA) sulfonation product. The Thin Crystal Film has a thickness of 200-1000 nm, with anisotropic optical properties such as refraction and absorption indices. X-ray diffraction data evidences a lyotropic liquid crystalline state in liquid phase and crystalline state in solid film. Anisotropic optical properties of the film make it useful in optical devices, e.g. liquid crystal displays.

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Statistical Modelling of the Conductivity Performance of Poly(3,4- ethylene- dioxythiophene/poly(Styrene Sulfonic Acid) Films

Current Analytical Chemistry ◽

10.2174/1573411011666150819190228 ◽

2016 ◽

Vol 12 (2) ◽

pp. 124-140 ◽

Cited By ~ 3

Author(s):

Anang W.M. Diah ◽

Clovia I. Holdsworth ◽

Darfiana Nur ◽

Eric Beh

Keyword(s):

Sulfonic Acid ◽

Statistical Modelling ◽

Styrene Sulfonic Acid

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The influence of the amount of catalyst on the degree of sulfonation in the sulfonation process on waste-based Styrofoam (polystyrene) into Poly-(Styrene Sulfonic Acid)

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1122/1/012100 ◽

2021 ◽

Vol 1122 (1) ◽

pp. 012100

Author(s):

R Manurung ◽

R Hasibuan ◽

H Inarto ◽

A Saputra

Keyword(s):

Sulfonic Acid ◽

Styrene Sulfonic Acid

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Controlling the Kinetics of an Enzymatic Reaction through Enzyme or Substrate Confinement into Lipid Mesophases with Tunable Structural Parameters

International Journal of Molecular Sciences ◽

10.3390/ijms21145116 ◽

2020 ◽

Vol 21 (14) ◽

pp. 5116

Author(s):

Marco Mendozza ◽

Arianna Balestri ◽

Costanza Montis ◽

Debora Berti

Keyword(s):

Reaction Kinetics ◽

Self Assembly ◽

Liquid Crystalline ◽

Structural Parameters ◽

Enzymatic Reaction ◽

X Ray Scattering ◽

Nitrophenyl Phosphate ◽

Vis Spectroscopy ◽

Kinetics Of ◽

Enzyme Alkaline Phosphatase

Lipid liquid crystalline mesophases, resulting from the self-assembly of polymorphic lipids in water, have been widely explored as biocompatible drug delivery systems. In this respect, non-lamellar structures are particularly attractive: they are characterized by complex 3D architectures, with the coexistence of hydrophobic and hydrophilic regions that can conveniently host drugs of different polarities. The fine tunability of the structural parameters is nontrivial, but of paramount relevance, in order to control the diffusive properties of encapsulated active principles and, ultimately, their pharmacokinetics and release. In this work, we investigate the reaction kinetics of p-nitrophenyl phosphate conversion into p-nitrophenol, catalysed by the enzyme Alkaline Phosphatase, upon alternative confinement of the substrate and of the enzyme into liquid crystalline mesophases of phytantriol/H2O containing variable amounts of an additive, sucrose stearate, able to swell the mesophase. A structural investigation through Small-Angle X-ray Scattering, revealed the possibility to finely control the structure/size of the mesophases with the amount of the included additive. A UV–vis spectroscopy study highlighted that the enzymatic reaction kinetics could be controlled by tuning the structural parameters of the mesophase, opening new perspectives for the exploitation of non-lamellar mesophases for confinement and controlled release of therapeutics.

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Synthesis of azobenzene-containing liquid crystalline block copolymer nanoparticles via polymerization induced hierarchical self-assembly

Polymer Chemistry ◽

10.1039/d0py01442g ◽

2021 ◽

Author(s):

Wei Wen ◽

Wangqi Ouyang ◽

Song Guan ◽

Aihua Chen

Keyword(s):

Block Copolymer ◽

Self Assembly ◽

Liquid Crystalline ◽

Facile Synthesis ◽

Liquid Crystalline Nanoparticles

A facile synthesis of non-spherical photoresponsive azobenzene-containing liquid crystalline nanoparticles via polymerization-induced hierarchical self-assembly (PIHSA).

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