Review
Chemistry, Analytical
Seema Thakral, Kyungtae Kim
Summary: Small-angle scattering (SAS) is a versatile analytical technique that provides detailed structural information at the nanometer scale. It has diverse applications in pharmaceutical material characterization, including identification of liquid-crystalline mesophase of drugs, study of excipient microstructure influence, and optimization of solid dispersions and protein-based therapeutics formulations.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ren Zheng, Lingling Ma, Wei Feng, Jintao Pan, Zeyu Wang, Zhaoxian Chen, Yiheng Zhang, Chaoyi Li, Peng Chen, Hari Krishna Bisoyi, Bingxiang Li, Quan Li, Yanqing Lu
Summary: Advances in biomimicry have led to the rise of advanced robotics, offering promising revolutions in various fields. This article presents the design, fabrication, and operation of crosslinked liquid crystal actuators that combine microstructure programming and macroscopic shape morphing for active optics and photonics. These actuators, consisting of twisted nematic liquid crystal molecules, exhibit large bending deformations in response to heat, enabling programmable bending motions and self-sustained waddling oscillations. The achievement of dynamic 2D beam steering and self-sustained light field modulation further enhances their potential applications in autonomous active optical systems, photonic applications, and self-governing robotics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Veronika Lackova, Martin A. Schroer, Dirk Honecker, Martin Hahsler, Hana Vargova, Katarina Zakutanska, Silke Behrens, Jozef Kovac, Dmitri I. Svergun, Peter Kopcansky, Natalia Tomasovicova
Summary: Clustering of magnetic nanoparticles significantly affects their collective magnetic properties, with non-monotonic dependencies observed in magnetization curves and the Freeedericksz transition on nanoparticle concentration. The formation of clusters and orientation of liquid crystal molecules in response to magnetic field strength were investigated, showing potential for tunable materials.
Article
Polymer Science
Stefan Petrov, Nguyen Hong Minh Chau, Vera Marinova, Ching-Cherng Sun, Ken-Yuh Hsu, Shiuan-Huei Lin
Summary: In this study, a comprehensive evaluation of a side-chain azobenzene-containing polymer as a photo-alignment command surface for nematic liquid crystal (LC) device assembly was presented. Decomposition of birefringence creation dynamics was used to understand the relationship between photoinduced illumination intensity, pre-tilt angle, and anchoring strength at the LC/photopolymer interface. Electro-optical parameters of the assembled LC cell were characterized for actinic intensities up to 100 mW/cm2, and controlling the illumination intensity improved the anchoring strength by two orders of magnitude in the azimuthal plane.
Article
Thermodynamics
Mustafa Okumus, Sinan Dindar
Summary: A novel hydrogen-bonded liquid crystalline binary complex system was synthesized from 4-(octyloxy)benzoic acid and n-aminobenzoic acid. The thermal properties and mesogenic phase textures were investigated using DSC and POM experiments, showing a phase sequence of Cr <-> SmA <-> SmC <-> N <-> I. The most stable phase was found to be SmC, and the optical tilt angle increased for the complexes. FTIR and XRD results confirmed the presence of hydrogen bonds and monoclinic molecular ordering in the synthesized complexes.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
Congcong Luo, You Lu, Hengheng Zhu, Bing Yao, Yuanyuan Liu, Jun Zhou, Guoyuan Xu, Yue Ding, Shifan Wang, Ying Chen, Jing Li, Aikebaier Reheman, Jiwei Wang
Summary: Printable cholesteric liquid crystal-based printing inks with excellent stability and a wide range of color patterns have been fabricated on a black substrate.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Juan Xue, Xuewu Yin, Lulu Xue, Chenglin Zhang, Shihua Dong, Li Yang, Yuanlai Fang, Yong Li, Ling Li, Jiaxi Cui
Summary: Many organisms produce stunning optical displays based on structural color, achieved through the interaction of light with micro-/nano-structures. Unfortunately, current synthetic materials are often brittle and energy-intensive. Inspired by peacock feathers, researchers have developed a self-growing photonic composite system that allows for easy tuning of coloration. This innovative method offers flexibility, toughness, self-healing ability, and reshaping capability, making it a promising solution for various applications of structural color materials.
NATURE COMMUNICATIONS
(2022)
Article
Polymer Science
Meina Yu, Jianjun Xu, Tianyang Wang, Luoning Zhang, Huiyun Wei, Cheng Zou, Yanzi Gao, Huai Yang
Summary: This study investigates the impact of chain structure on the electro-optical performance of PDLC films. It is found that adjusting the alkyl chain length can improve the contrast ratio, while introducing branched chains can compensate for the increased driving voltages. The optimized PDLC film achieves a high contrast ratio and shows two distinct states: highly transparent state and strong scattering state.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Applied
Thomas Konegger, Christina Drechsel, Herwig Peterlik
Summary: In this study, in-situ small angle X-ray scattering (SAXS) was used to monitor the structural evolution of polymer-derived ceramic materials during the pyrolytic conversion process, focusing on the emergence, transformation, and collapse of transient microporosity. Results showed that the in-situ experiments were in good agreement with conventionally obtained ex-situ data, indicating the significant potential of this method for gaining fundamental insights into the conversion of polymer-derived ceramics.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Svenja Wesp, Kai Wolf, Stefan Immel, Michael Reggelin
Summary: Lyotropic liquid crystalline (LLC) phases of amino acid derived polyarylisocyanides were used as chiral alignment media for measuring residual dipolar couplings (RDCs) of small chiral organic molecules. The LLC phases exhibited excellent orienting properties for a wide range of analytes with different functional groups, allowing for accurate extraction of RDCs within the range of +/- 40 Hertz. Additionally, the chiral environment had a significant differential order effect on ketones and alcohols.
Article
Optics
Tali Lemcoff, Lotem Alus, Johannes S. Haataja, Avital Wagner, Gan Zhang, Mariela J. Pavan, Venkata Jayasurya Yallapragada, Silvia Vignolini, Dan Oron, Lukas Schertel, Benjamin A. Palmer
Summary: This study reveals that the extreme birefringence of isoxanthopterin nanospheres can overcome optical crowding effects, allowing ultra-thin chromatophore cells in shrimp to achieve multiple scattering and brilliant whiteness. Numerical simulations show that the spherulitic arrangement of isoxanthopterin molecules, which results in birefringence, enables intense broadband scattering almost up to the maximal packing for random spheres. This reduces the thickness of material required to produce brilliant whiteness, making it more efficient than other biogenic or biomimetic white materials.
Article
Materials Science, Ceramics
Mbaye Ndour, Laurent Chaput, Philippe Jund
Summary: This study prepared ten small size samples of amorphous silica containing 78 atoms using classical molecular dynamics and the BKS empirical potential. The structural characteristics of these samples were found to be in good agreement with experimental data, and dynamical properties were also relatively well compared with neutron scattering experiments. These small dynamically stable structures can be used to study more complicated physical properties, such as thermal conductivity or diffusivity, at a reduced computational cost.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Wenjie Bi, Zhiyuan Zheng, Yue Wang, Ziyang Shi, Kunlun Wang, Yingliang Liu, Shengang Xu, Shaokui Cao
Summary: This study successfully synthesized fluorinated triphenylene monomers and polymers with discotic liquid crystalline polymer structures, and investigated their structures and properties using various characterization methods. The polymers exhibited good thermal stability and showed different liquid crystalline phases. This research is important for structural modifications of discotic liquid crystalline polymers and has potential applications in organic optoelectronics.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
P. A. N. S. Priyadharshana, Ju-Young Park, Seung-Ho Hong, Jang-Kun Song
Summary: This study reports a facile method to prepare multiresponsive colloidal materials that can be controlled by electric fields and temperature. The materials exhibit a solid gel phase and a liquid sol phase, and are used for designing display devices and temperature maintenance indication.
Article
Chemistry, Physical
Soumita Maiti, Sangchul Roh, Itai Cohen, Nicholas L. Abbott
Summary: This study explores the non-equilibrium interfacial behaviors of thermotropic liquid crystals and finds that the reordering of the liquid crystals is mainly caused by interfacial shearing. Simple methods for mapping interfacial velocities and investigating surfactant-driven flows are established, revealing the importance of surface advection and surfactant desorption. The dynamic states adopted by the liquid crystals in the presence of surfactant concentration gradients offer new opportunities for engineering complex fluids beyond equilibrium.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Optics
T. D. Ibragimov, G. M. Bayramov, A. R. Imamaliev
Article
Materials Science, Multidisciplinary
T. D. Ibragimov, A. R. Imamaliyev, G. M. Bayramov
Article
Optics
T. D. Ibragimov, A. R. Imamaliyev, G. M. Bayramov
Article
Optics
T. D. Ibragimov, A. R. Imamaliyev, G. M. Bayramov
Article
Chemistry, Multidisciplinary
Shirkhan Humbatov, Mahammadali Ramazanov, Abbas Imamaliyev
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2017)
Article
Physics, Multidisciplinary
M. A. Ramazanov, A. R. Imamaliyev, Sh. A. Humbatov, Z. A. Agamaliev
RUSSIAN PHYSICS JOURNAL
(2018)
Article
Nanoscience & Nanotechnology
Abbas R. Imamaliyev, Mahammadali A. Ramazanov, Shirkhan A. Humbatov
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2018)
Article
Chemistry, Physical
Tahir D. Ibragimov, Abbas R. Imamaliyev, Gultamam F. Ganizade
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
(2020)
Article
Physics, Applied
A. Asadova, E. A. Masimov, A. R. Imamaliyev, A. H. Asadova
MODERN PHYSICS LETTERS B
(2020)
Article
Chemistry, Multidisciplinary
Tahir D. Ibragimov, Abbas R. Imamaliyev, Gultamam F. Ganizade
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2019)
Proceedings Paper
Materials Science, Multidisciplinary
T. D. Ibragimov, A. R. Imamaliyev, G. M. Bayramov
PROCEEDINGS OF THE 5TH INTERNATIONAL CONGRESS IN ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE CONGRESS & EXHIBITION (APMAS '15)
(2016)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)