Review
Materials Science, Multidisciplinary
P. Priscilla, Praveen Malik, Supreet, Ajay Kumar, Riccardo Castagna, Gautam Singh
Summary: This review focuses on the alignment of liquid crystals (LCs) controlled by nanoparticles. It is found that doping nanoparticles in LCs or patterning nanostructures on substrates can achieve the desired alignment of LCs. Using nanoparticles for LC alignment has similar quality to conventional alignment techniques, but it is less time consuming and cost-effective. Furthermore, nanoparticles can greatly improve the electro-optical properties of LC devices.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(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, Multidisciplinary
Yang-yang Zhao, Yaxin Li, Yu Cao, Georg H. Mehl, Feng Liu, Goran Ungar
Summary: The correlation between the size of nanoparticles, the structure and shape of mesogenic ligands and the ensuing assembly behaviour is not fully understood. In this study, gold nanoparticles of different sizes were synthesized and modified with ligands containing rod-like mesogens. The resulting structures were compared and analyzed, and general rules were derived to assist in designing the soft corona of nanoparticles to achieve desired structures and anisotropy.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Selin Sengul, Nihal Aydogan, Emre Bukusoglu
Summary: This study investigates the response of micrometer sized nematic liquid crystal (LC) droplets to the adsorption of nanoparticles and demonstrates the configuration changes caused by the adsorption. By manipulating electrostatic interactions, the researchers successfully controlled the adsorption of nanoparticles onto the droplet surfaces and accessed the physicochemical properties of the nanoparticles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Prabir K. Mukherjee
Summary: The experimental results demonstrated the significant impact of ferromagnetic nanoparticles on the smectic-A to chiral smectic-C phase transition, with discussions on various properties near the transition. Both qualitative and quantitative agreement between experiments and theory were observed, based on the thermodynamic description presented in this study.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Aleksandra Gridyakina, Natalia Kasian, Mi losz S. Chych Lowski, Marta Kajkowska, Piotr Lesiak
Summary: Multicomponent liquid crystal systems are of great interest in scientific research and practical applications. By combining liquid crystals, polymers, and nanoparticles into a three-component system, it is possible to optimize the performance in display applications and expand the applications of multicomponent systems.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Anna Poryvai, Michal Smahel, Marie Svecova, Ahlam Nemati, Sasan Shadpour, Pavel Ulbrich, Timothy Ogolla, Jiao Liu, Vladimira Novotna, Miroslav Veverka, Jana Vejpravova, Torsten Hegmann, Michal Kohout
Summary: Combining cobalt ferrite nanocrystals with organic ligands featuring a robust photosensitive unit and a source of chirality, nanoparticles are developed to serve as a multifunctional and multiaddressable dopant to modify the properties of liquid crystalline matrices. These nanoparticles, when dispersed in achiral liquid crystals, form chiral supramolecular structures that can respond to UV-light illumination and possess strong magnetic response.
Article
Chemistry, Physical
Katarina Zakutanska, Dmytro Miakota, Veronika Lackova, Shie-Chang Jeng, Dorota Weglowska, Filippo Agresti, Marketa Jarosova, Peter Kopcansky, Natalia Tomasovicova
Summary: This paper investigates the electromechanical and magnetomechanical memory effects induced by electric and magnetic fields in liquid crystal doped with aerosil nanoparticles. The systems studied exhibit hysteresis in capacitance-voltage and capacitance-magnetic field dependences. The results suggest potential use of this system as voltage-driven or magnetic field-driven non-volatile memory devices.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Sikang Wan, Wei Cong, Baiqi Shao, Baiheng Wu, Qingbin He, Quan Chen, Jianlei Shen, Dong Chen, Hong-Gang Hu, Fangfu Ye, Chunhai Fan, Hongjie Zhang, Kai Liu
Summary: A versatile method of preparing solvent-free thermotropic liquid crystals of inorganic nanoparticles is presented, allowing for the construction of a library of thermotropic liquid crystals with various shapes, compositions, and dimensions. This method enables the design and development of functional materials and devices with unique properties, such as polarization-dependent excitation, polarized photoluminescence, and designable magnetic robot.
Review
Polymer Science
Yong Ye, Li Guo, Tingjun Zhong
Summary: Polymer-stabilized liquid crystals (PSLCs) are versatile materials with polymer networks providing anchoring energy for liquid crystals. This review details various improvements in PSLCs, including polymer-stabilized nematic, cholesteric, blue phase, smectic, ferroelectric, and antiferroelectric liquid crystals. PSLCs offer multiple functionalities, such as reorientation in smart windows and manual tuning of reflection bandwidth in broadband reflectors. PSBPLCs open up new possibilities for displays, modulators, sensors, lasers, lenses, and photonics applications. Polymer networks in PSFLCs or PSAFLCs enhance grayscale memories for flexible displays and energy-saving smart cards. The remaining challenges and research opportunities in PSLCs are also discussed.
Article
Chemistry, Multidisciplinary
Manlin Zhang, Michael Lindner-D'Addario, Mahdi Roohnikan, Violeta Toader, Robert Bruce Lennox, Linda Reven
Summary: This study investigates the dispersion of ethylene oxide oligomers and polymers, both free and tethered to gold nanoparticles, in blue phase liquid crystals (BPLC). The results show that the functionalization and molecular weight of the gold nanoparticles can affect the stability and temperature range of the blue phase.
Article
Chemistry, Physical
Katarina Zakutanska, Danil Petrov, Peter Kopcansky, Dorota Weglowska, Natalia Tomasovicova
Summary: This paper presents results from capacitance measurements on composites of nematic liquid crystal 6CB and spherical iron oxide nanoparticles, showing a decrease in threshold magnetic field with increasing volume concentration of nanoparticles. Estimations based on the results suggest soft anchoring between liquid crystal and nanoparticles.
Article
Pharmacology & Pharmacy
Vivek P. Chavda, Sathish Dyawanapelly, Shilpa Dawre, Ines Ferreira-Faria, Rajashri Bezbaruah, Niva Rani Gogoi, Praveen Kolimi, Divyang J. Dave, Ana Claudia Paiva-Santos, Lalitkumar K. Vora
Summary: Liquid crystal-based nanoformulations are efficient in delivering drugs and therapeutics to specific biological sites. Lyotropic liquid crystalline phases (LLCPs) have unique characteristics that make them promising drug delivery systems, offering improved drug loading, stability, and controlled release. Factors such as molecule shape, microsegregation, and chirality play important roles in the formation of these liquid crystalline phases. Additionally, due to their similarity to biological membranes, liquid crystals demonstrate higher bioadhesivity and biocompatibility, making them more effective for targeted drug delivery.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Chemistry, Physical
Milan Ambrozic, Kaushik Pal, Samo Kralj, Arbresha Holbl
Summary: The impact of weak disorder on systems with long-range order is an interesting yet relatively unexplored topic. By using homogenous mixtures of liquid crystals and nanoparticles, the strength of disorder can be controlled, and the resulting configurations can be applied in the field of light-manipulation devices.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
Dongyu Zhao, Yuanyuan Guo, Weihua Bi, Xin Li, Ran Duan, Lin Guo
Summary: This study reports a method to achieve uniform homeotropic alignment of liquid crystals using CuInS2 nanoparticles and explores the mechanism behind it. The crystal structures of the nanoparticles were found to depend heavily on the reaction solvents, which in turn anchor the liquid crystal molecules. The achieved homeotropic alignment is thermally stable and can be combined with parallel-aligning technique to achieve variable pretilt angles.
Article
Physics, Applied
Guan-Yu Zhuo, Kuan-Chieh Chen, Kai-Wen Lai, Chao-Ran Wang, Chih-Yu Chao, Shi-Wei Chu
JOURNAL OF APPLIED PHYSICS
(2015)
Article
Chemistry, Multidisciplinary
Tsu-Ruey Chou, Szu-Hua Chen, Yen-Te Chiang, Yi-Ting Lin, Chih-Yu Chao
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2015)
Article
Chemistry, Multidisciplinary
Yen-Te Chiang, Tsu-Ruey Chou, Chih-Yu Chao
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2015)
Article
Chemistry, Multidisciplinary
Wei-Ting Chen, Yu-Chuen Chen, Szu-Hua Chen, Chih-Yu Chao
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2015)
Article
Chemistry, Multidisciplinary
Jun-Wei Chen, Yu-Yi Kuo, Kuan-Ting Chen, Chao-Ran Wang, Chih-Yu Chao
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2015)
Article
Chemistry, Multidisciplinary
Jun-Wei Chen, Chao-Ran Wang, Tsu-Ruey Chou, Wei-Ting Chen, Chih-Yu Chao
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2015)
Article
Optics
Chiu-Chang Huang, Yu-Yi Kuo, Szu-Hua Chen, Wei-Ting Chen, Chih-Yu Chao
Article
Materials Science, Multidisciplinary
Jun-Wei Chen, Yu-Yi Kuo, Chao-Ran Wang, Chih-Yu Chao
ORGANIC ELECTRONICS
(2015)
Article
Multidisciplinary Sciences
Wei-Ting Chen, Yu-Chuen Chen, Horng-Huei Liou, Chih-Yu Chao
SCIENTIFIC REPORTS
(2015)
Article
Materials Science, Multidisciplinary
Tsu-Ruey Chou, Szu-Hua Chen, Yen-Te Chiang, Yi-Ting Lin, Chih-Yu Chao
JOURNAL OF MATERIALS CHEMISTRY C
(2015)
Article
Nanoscience & Nanotechnology
Jun-Wei Chen, Chiu-Chang Huang, Chih-Yu Chao
ACS APPLIED MATERIALS & INTERFACES
(2014)
Article
Physics, Multidisciplinary
Chiu-Chang Huang, Tsu-Ruey Chou, Jun-Wei Chen, Chih-Yu Chao
BRAZILIAN JOURNAL OF PHYSICS
(2015)
Article
Physics, Applied
Tsu-Ruey Chou, Jung Hsieh, Wei-Ting Chen, Chih-Yu Chao
JAPANESE JOURNAL OF APPLIED PHYSICS
(2014)
Article
Optics
Yen-Te Chiang, Tsu-Ruey Chou, Chih-Yu Chao
Proceedings Paper
Engineering, Electrical & Electronic
Chih-Yu Chao, Chih-Hung Wang, Yu-Jui Che, Cheng-Yen Kao, Jiunn-Jong Wu, Gwo-Bin Lee
2014 IEEE 27TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS)
(2014)
