NDLI: Chlorophyll Detection by Localized Surface Plasmon Resonance Using Functionalized Carbon Quantum Dots Triangle Ag Nanoparticles

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Chlorophyll Detection by Localized Surface Plasmon Resonance Using Functionalized Carbon Quantum Dots Triangle Ag Nanoparticles

Content Provider	MDPI
Author	Nazri, Nur Afifah Ahmad Azeman, Nur Hidayah Bakar, Mohd Hafiz Abu Mobarak, Nadhratun Naiim Aziz, Tg Hasnan Tg Abd Arsad, Norhana Luo, Yunhan Bakar, Ahmad Ashrif A. Zain, Ahmad Rifqi
Copyright Year	2022
Description	An optical sensor-based localized surface plasmon resonance (LSPR) sensor was demonstrated for sensitive and selective chlorophyll detection through the integration of amino-functionalized carbon quantum dots (NCQD) and triangle silver nanoparticles (AgNPs). The additions of amino groups to the CQD enhance the detection of chlorophyll through electrostatic interactions. AgNPs-NCQD composite was fabricated on the surface of the silanized glass slide using the self-assembly technique. The experimental results showed that the AgNPs-NCQD film-based LSPR sensor detects better than AgNPs and AgNPs-CQD films with a good correlation coefficient $(R^{2}$ = 0.9835). AgNPs-NCQD showed a high sensitivity response of 2.23 nm $ppm^{−1}$. The detection and quantification limits of AgNPs-NCQD are 1.03 ppm and 3.40 ppm, respectively, in the range of 0.05 to 6 ppm. Throughout this study, no significant interference was observed among the other ionic species (NO_{2}$^{−}$, PO_{4}$^{−}$, NH_{4}$^{+}$, and $Fe^{3+}$). This study demonstrates the applicability of the proposed sensor (AgNPs-NCQD) as a sensing material for chlorophyll detection in oceans.
Starting Page	2999
e-ISSN	20794991
DOI	10.3390/nano12172999
Journal	Nanomaterials
Issue Number	17
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2022-08-30
Access Restriction	Open
Subject Keyword	Nanomaterials Imaging Science Carbon Quantum Dots Surface Plasmon Resonance Silver Nanoparticles Chlorophyll Optical Sensor
Content Type	Text
Resource Type	Article

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