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Detection of alkali and alkaline earth metal ions using birefringence of hyperswollen lamellar phase.

Koki SasakiShotaro MatobaYoshiaki UchidaNorikazu Nishiyama
Published in: RSC advances (2023)
Chemical sensors have targeted various substances. Most sensors electrically amplify signals. Here, we propose a visual detection system that uses a hyperswollen lamellar phase and detects targets in a solution without electric amplification. Amphiphiles with an oligo(ethylene glycol) chain can catch alkali and alkaline earth metal ions and amplify to macroscopic birefringence.
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