Physics of Liquid Crystals

Tabe, Yuka; Urayama, Kenji; Matsuyama, Akihiko; Yamamoto, Jun; Yoneya, Makoto

doi:10.1007/978-4-431-54859-1_10

Cited by 4 publications

(1 citation statement)

References 104 publications

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“…LCs are the state of matter that represents combined properties associated with ordered crystals and disordered liquids. They are composed of anisotropic molecules with various orientational and positional orderings, forming a series of mesophase structures [2][3][4][5]. The distribution of the easy axis of the anisotropic molecules relative to the introduced director field, n, determines the class of liquid-crystalline mesophases.…”

Section: Introductionmentioning

confidence: 99%

Chiral Liquid Crystal Microdroplets for Sensing Phospholipid Amphiphiles

Martínez‐González

2022

Biosensors

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Designing simple, sensitive, fast, and inexpensive readout devices to detect biological molecules and biomarkers is crucial for early diagnosis and treatments. Here, we have studied the interaction of the chiral liquid crystal (CLC) and biomolecules at the liquid crystal (LC)-droplet interface. CLC droplets with high and low chirality were prepared using a microfluidic device. We explored the reconfiguration of the CLC molecules confined in droplets in the presence of 1,2-diauroyl-sn-glycero3-phosphatidylcholine (DLPC) phospholipid. Cross-polarized optical microscopy and spectrometry techniques were employed to monitor the effect of droplet size and DLPC concentration on the structural reorganization of the CLC molecules. Our results showed that in the presence of DLPC, the chiral LC droplets transition from planar to homeotropic ordering through a multistage molecular reorientation. However, this reconfiguration process in the low-chirality droplets happened three times faster than in high-chirality ones. Applying spectrometry and image analysis, we found that the change in the chiral droplets’ Bragg reflection can be correlated with the CLC–DLPC interactions.

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Section: Introductionmentioning

confidence: 99%