Recyclable liquid crystal polymeric sensor beads based on the assistance of radially aligned liquid crystals

Jui Hsiang Liu; Yi Hua Hung; Ssu Ni Lin; Sergey A. Shvetsov; Vladimir Yu Rudyak; Alexander V. Emelyanenko; Chun Yen Liu

doi:10.1038/s41428-020-00428-0

Recyclable liquid crystal polymeric sensor beads based on the assistance of radially aligned liquid crystals

Jui Hsiang Liu, Yi Hua Hung, Ssu Ni Lin, Sergey A. Shvetsov, Vladimir Yu Rudyak, Alexander V. Emelyanenko, Chun Yen Liu

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

In this study, we first demonstrate the synthesis of recyclable polymer beads for Cu²⁺ sensing based on radially aligned liquid crystal (LC) assistance. To detect metal ions in water, sensing probe monomers and polymers derived from rhodamine B were synthesized. Recyclable polymeric LC beads were prepared from LC monomers RM257 and RM105, a nonreactive mesogen of 5CB and a rhodamine B-derived monomer. Due to the assistance of radially aligned LCs, highly sterically hindered spirocyclic terminal groups of rhodamine B-derived monomers were aligned and fixed at the outer surface of liquid crystal beads. The color of the polymeric LC beads changed from light pink to deep pink after the beads were dropped into an aqueous Cu²⁺ solution. The results were ascribed to the spiro ring-opening mechanism. The addition of a nonreactive mesogen resulted in the porous structure of the polymeric LC beads. The high sensitivity of the Cu²⁺ solution using polymeric LC beads was confirmed. The fabricated polymeric LC beads were recycled by putting the polymeric LC beads into aqueous ammonia. The removal of Cu²⁺ from polymeric LC beads was due to the formation of [Cu(NH₃)₄]²⁺. This recyclable LC bead sensor is an easy method for the detection of metal ions in aqueous solutions.

Original language	English
Pages (from-to)	373-383
Number of pages	11
Journal	Polymer Journal
Volume	53
Issue number	2
DOIs	https://doi.org/10.1038/s41428-020-00428-0
Publication status	Published - 2021 Feb

All Science Journal Classification (ASJC) codes

Polymers and Plastics
Materials Chemistry

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10.1038/s41428-020-00428-0

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@article{23b1ed2a02244869832fe5907b453c1c,

title = "Recyclable liquid crystal polymeric sensor beads based on the assistance of radially aligned liquid crystals",

abstract = "In this study, we first demonstrate the synthesis of recyclable polymer beads for Cu2+ sensing based on radially aligned liquid crystal (LC) assistance. To detect metal ions in water, sensing probe monomers and polymers derived from rhodamine B were synthesized. Recyclable polymeric LC beads were prepared from LC monomers RM257 and RM105, a nonreactive mesogen of 5CB and a rhodamine B-derived monomer. Due to the assistance of radially aligned LCs, highly sterically hindered spirocyclic terminal groups of rhodamine B-derived monomers were aligned and fixed at the outer surface of liquid crystal beads. The color of the polymeric LC beads changed from light pink to deep pink after the beads were dropped into an aqueous Cu2+ solution. The results were ascribed to the spiro ring-opening mechanism. The addition of a nonreactive mesogen resulted in the porous structure of the polymeric LC beads. The high sensitivity of the Cu2+ solution using polymeric LC beads was confirmed. The fabricated polymeric LC beads were recycled by putting the polymeric LC beads into aqueous ammonia. The removal of Cu2+ from polymeric LC beads was due to the formation of [Cu(NH3)4]2+. This recyclable LC bead sensor is an easy method for the detection of metal ions in aqueous solutions.",

author = "Liu, {Jui Hsiang} and Hung, {Yi Hua} and Lin, {Ssu Ni} and Shvetsov, {Sergey A.} and Rudyak, {Vladimir Yu} and Emelyanenko, {Alexander V.} and Liu, {Chun Yen}",

note = "Funding Information: Acknowledgements The authors would like to thank the Ministry of Science and Technology (MOST) of the Republic of China (Taiwan) for financially supporting this research under contract MOST 107-2923-E-006-001 and MOST 108-2218-E-006-049. This research was also supported in part by the Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU). Publisher Copyright: {\textcopyright} 2020, The Society of Polymer Science, Japan.",

year = "2021",

month = feb,

doi = "10.1038/s41428-020-00428-0",

language = "English",

volume = "53",

pages = "373--383",

journal = "Polymer Journal",

issn = "0032-3896",

publisher = "Nature Publishing Group",

number = "2",

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TY - JOUR

T1 - Recyclable liquid crystal polymeric sensor beads based on the assistance of radially aligned liquid crystals

AU - Liu, Jui Hsiang

AU - Hung, Yi Hua

AU - Lin, Ssu Ni

AU - Shvetsov, Sergey A.

AU - Rudyak, Vladimir Yu

AU - Emelyanenko, Alexander V.

AU - Liu, Chun Yen

N1 - Funding Information: Acknowledgements The authors would like to thank the Ministry of Science and Technology (MOST) of the Republic of China (Taiwan) for financially supporting this research under contract MOST 107-2923-E-006-001 and MOST 108-2218-E-006-049. This research was also supported in part by the Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU). Publisher Copyright: © 2020, The Society of Polymer Science, Japan.

PY - 2021/2

Y1 - 2021/2

N2 - In this study, we first demonstrate the synthesis of recyclable polymer beads for Cu2+ sensing based on radially aligned liquid crystal (LC) assistance. To detect metal ions in water, sensing probe monomers and polymers derived from rhodamine B were synthesized. Recyclable polymeric LC beads were prepared from LC monomers RM257 and RM105, a nonreactive mesogen of 5CB and a rhodamine B-derived monomer. Due to the assistance of radially aligned LCs, highly sterically hindered spirocyclic terminal groups of rhodamine B-derived monomers were aligned and fixed at the outer surface of liquid crystal beads. The color of the polymeric LC beads changed from light pink to deep pink after the beads were dropped into an aqueous Cu2+ solution. The results were ascribed to the spiro ring-opening mechanism. The addition of a nonreactive mesogen resulted in the porous structure of the polymeric LC beads. The high sensitivity of the Cu2+ solution using polymeric LC beads was confirmed. The fabricated polymeric LC beads were recycled by putting the polymeric LC beads into aqueous ammonia. The removal of Cu2+ from polymeric LC beads was due to the formation of [Cu(NH3)4]2+. This recyclable LC bead sensor is an easy method for the detection of metal ions in aqueous solutions.

AB - In this study, we first demonstrate the synthesis of recyclable polymer beads for Cu2+ sensing based on radially aligned liquid crystal (LC) assistance. To detect metal ions in water, sensing probe monomers and polymers derived from rhodamine B were synthesized. Recyclable polymeric LC beads were prepared from LC monomers RM257 and RM105, a nonreactive mesogen of 5CB and a rhodamine B-derived monomer. Due to the assistance of radially aligned LCs, highly sterically hindered spirocyclic terminal groups of rhodamine B-derived monomers were aligned and fixed at the outer surface of liquid crystal beads. The color of the polymeric LC beads changed from light pink to deep pink after the beads were dropped into an aqueous Cu2+ solution. The results were ascribed to the spiro ring-opening mechanism. The addition of a nonreactive mesogen resulted in the porous structure of the polymeric LC beads. The high sensitivity of the Cu2+ solution using polymeric LC beads was confirmed. The fabricated polymeric LC beads were recycled by putting the polymeric LC beads into aqueous ammonia. The removal of Cu2+ from polymeric LC beads was due to the formation of [Cu(NH3)4]2+. This recyclable LC bead sensor is an easy method for the detection of metal ions in aqueous solutions.

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DO - 10.1038/s41428-020-00428-0

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SN - 0032-3896

VL - 53

SP - 373

EP - 383

JO - Polymer Journal

JF - Polymer Journal

IS - 2

ER -

Recyclable liquid crystal polymeric sensor beads based on the assistance of radially aligned liquid crystals

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