Journal
CHEMISTRY LETTERS
Volume 41, Issue 10, Pages 1297-1299Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2012.1297
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Funding
- MEXT
- EPSRC [EP/H02252X/1, EP/D506654/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D506654/1] Funding Source: researchfish
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A novel ammonia gas sensor using a polyelectrolyte thin film composed of poly(diallyldimethylammonium chloride) (PDDA) and poly(acrylic acid) (PAA), PDDA/PAA, is demonstrated with a long-period grating (LPG) optical fiber. PAA could act as a selective receptor for ammonia binding, which induced significant changes in the optical thickness and density of the film owing to the pronounced electrostatic interaction between the alternate layers.
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