A novel surface plasmon resonance sensor based on a functionalized graphene oxide/molecular-imprinted polymer composite for chiral recognition of <scp>l</scp>-tryptophan

Xu, Xiaoyan; Zhang, Yi; Wang, Bingfeng; Luo, Lin; Xu, Zhen-Lin; Tian, Xin

doi:10.1039/c8ra06295a

Cited by 23 publications

(7 citation statements)

References 40 publications

(47 reference statements)

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“…Among the existing optical techniques to detect Hg 2+ are colorimetric, fluorescent, chemosensor, electrochemiluminescence (ECL) and photoluminescent (PL) [32][33][34]. Though these techniques are widely used, they encounter from many drawbacks, such as high instrument operating costs, repetitive pretreatment procedures and long initiation times [35].…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Chitosan/Maghemite Composites Thin Film for Potential Optical Detection of Mercury Ion by Surface Plasmon Resonance Investigation

et al. 2020

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In this study, synthesis and characterization of chitosan/maghemite (Cs/Fe2O3) composites thin film has been described. Its properties were characterized using Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and ultraviolet-visible spectroscopy (UV-Vis). FTIR confirmed the existence of Fe–O bond, C–N bond, C–C bond, C–O bond, O=C=O bond and O–H bond in Cs/Fe2O3 thin film. The surface morphology of the thin film indicated the relatively smooth and homogenous thin film, and also confirmed the interaction of Fe2O3 with the chitosan. Next, the UV-Vis result showed high absorbance value with an optical band gap of 4.013 eV. The incorporation of this Cs/Fe2O3 thin film with an optical-based method, i.e., surface plasmon resonance spectroscopy showed positive response where mercury ion (Hg2+) can be detected down to 0.01 ppm (49.9 nM). These results validate the potential of Cs/Fe2O3 thin film for optical sensing applications in Hg2+ detection.

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Section: Introductionmentioning

confidence: 99%

Nanostructured Chitosan/Maghemite Composites Thin Film for Potential Optical Detection of Mercury Ion by Surface Plasmon Resonance Investigation

et al. 2020

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“…Tian et al demonstrated a surface plasmon resonance (SPR) sensor on a molecular-imprinted polymer functionalized/ composite graphene oxide (GO) for the chiral recognition of L-Trp. 32 The recognition element of the composite was arranged via a green synthesis methodology using polydopamine as a functional monomer, a reducer and a cross-linker for molecular imprinting. The SPR chip's gold surface was used to attach the composite and contact-angle measurements were carried out to characterize the sensor.…”

Section: Miscellaneous Pathwaysmentioning

confidence: 99%

A fast survey on recent developments in designing colorimetric and fluorescent sensors for the selective detection of essential amino acids

et al. 2023

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“…SPR sensors have mostly been used for sensing in the liquid phase in the situation of enantiomeric discrimination. Using a functionalized GO‐MIP composite as a recognition element, Xu and coworkers created a new SPR sensor for the chiral recognition of L‐Trp [310]. The composite was easily made using novel mussel‐inspired surface chemistry based on DA oxidative polymerization.…”

Section: Chiral Resolution Np Sensing Approachesmentioning

confidence: 99%

Enantioseparation/Recognition based on nano techniques/materials

Tarigh

2023

J of Separation Science

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Enantiomers show different behaviors in interaction with the chiral environment. Due to their identical chemical structure and their wide application in various industries, such as agriculture, medicine, pesticide, food, and so forth, their separation is of great importance. Today, the term "nano" is frequently encountered in all fields. Technology and measuring devices are moving towards miniaturization, and the usage of nanomaterials in all sectors is expanding substantially. Given that scientists have recently attempted to apply miniaturized techniques known as nano-liquid chromatography/capillary-liquid chromatography, which were originally accomplished in 1988, as well as the widespread usage of nanomaterials for chiral resolution (back in 1989), this comprehensive study was developed. Searching the terms "nano" and "enantiomer separation" on scientific websites such as Scopus, Google Scholar, and Web of Science yields articles that either use miniaturized instruments or apply nanomaterials as chiral selectors with a variety of chemical and electrochemical detection techniques, which are discussed in this article.

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A novel surface plasmon resonance sensor based on a functionalized graphene oxide/molecular-imprinted polymer composite for chiral recognition of l-tryptophan

Abstract: Novel SPR sensor for chiral recognition of l-tryptophan using a functionalized graphene oxide/molecularly-imprinted polymer composite as a recognition element.

Cited by 23 publications

References 40 publications

Nanostructured Chitosan/Maghemite Composites Thin Film for Potential Optical Detection of Mercury Ion by Surface Plasmon Resonance Investigation

Nanostructured Chitosan/Maghemite Composites Thin Film for Potential Optical Detection of Mercury Ion by Surface Plasmon Resonance Investigation

A fast survey on recent developments in designing colorimetric and fluorescent sensors for the selective detection of essential amino acids

Enantioseparation/Recognition based on nano techniques/materials

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