Spontaneous Formation of Fluorescent Carbon Nanoparticles in Glutaraldehyde Solution and Their Fluorescence Mechanism

Zuo, Pengli; Zhang, Jingyu; Zhou, Yuqing; Xie, Ningjie; Xiao, Deli

doi:10.1007/s10895-020-02678-w

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…The origin of this light emission can be attributed to a combination of transition states between the Si 3 N 4 and oxide (produced during the hydroxylation process), nitride dangling bonds, and probably also surface defects induced by the OH groups [ 29 , 30 ]. A similar PL response is observed when the samples are functionalized, where only a slight rise in PL intensity is measured, as expected due to the presence of the APTES and GTA molecules [ 30 , 31 ]. The PL signal increases even further when biotin is deposited on the functionalized surface.…”

Section: Resultssupporting

confidence: 74%

“…This higher signal includes the contribution of luminescence by the biotin molecules themselves [ 32 ]. Here, as indicated in Figure 4 , the characteristic wavelength at which biotin photoemits is 520 nm [ 31 , 33 , 34 ], which is closely around the maximum intensity peak (482 nm) of the PL signal of the biotinylated samples. These results, in addition to the previous findings, demonstrate the successful biotinylation of the Si 3 N 4 surfaces.…”

Section: Resultsmentioning

confidence: 96%

“… PL spectra for the Si 3 N 4 surface (black line), after functionalization (red line) and after biotinylation (green line). The peak wavelengths of PL emission of the APTES, GTA, and biotin molecules are indicated on the wavelength axis [ 30 , 31 , 34 ]. …”

Section: Figurementioning

confidence: 99%

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Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

2023

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Electrophotonic (EPh) circuits are novel systems where photons and electrons can be controlled simultaneously in the same integrated circuit, attaining the development of innovative sensors for different applications. In this work, we present a complementary metal-oxide-semiconductor (CMOS)-compatible EPh circuit for biotin sensing, in which a silicon-based light source is monolithically integrated. The device is composed of an integrated light source, a waveguide, and a p–n photodiode, which are all fabricated in the same chip. The functionalization of the waveguide’s surface was investigated to biotinylate the EPh system for potential biosensing applications. The modified surfaces were characterized by AFM, optical microscopy, and Raman spectroscopy, as well as by photoluminescence measurements. The changes on the waveguide’s surface due to functionalization and biotinylation translated into different photocurrent intensities detected in the photodiode, demonstrating the potential uses of the EPh circuit as a biosensor.

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Section: Resultssupporting

confidence: 74%

Section: Resultsmentioning

confidence: 96%

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Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

2023

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“…In this structure, there is no remaining aldehyde band from the glutaraldehyde at 1720 cm −1 for (CO), and 2725 and 2825 cm −1 for Fermi resonance of the aldehyde group. [ 26 ] Otherwise, the spectrum of Mn‐DTOGA shows an imine peak at 1639 cm −1 , a weak NCS band (2055 cm −1 ), and a strong CS at 803 cm −1 due to the coordination bond formation between S and Mn atoms. Additionally, we confirmed the presence of acetate groups by the observation of a new band formed at CC (1445 cm −1 ) and CH 3 (1378 cm −1 ), even though a COOH band (≈1760 cm −1 ) overlapped a broad imine band.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of MnS/MnO Decorated N, S‐Doped Carbon Derived from a Mn(II)‐Coordinated Polymer for the Catalytic Oxidation of H₂O₂ and Bisphenol A

Shim

Seo

Kim

2023

Adv Funct Materials

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A way to synthesize a Mn2+‐ coordinated polymer precursor ligated by sulfur atoms with acetate counter ions (Mn‐DTOGA) is proposed, which is achieved by an imine formation reaction between dithiooxamide and glutaraldehyde in the presence of manganese (II) acetate. MnS/MnO decorated N, S‐doped carbon nanoparticles (MnS/O‐SNC) are then prepared by calcination of the Mn ion‐coordinated polymer for the practical applications of catalytic reactions. The Mn‐DTOGA and MnS/O‐SNC structures prepared at different temperatures (700, 800, and 900 °C) are characterized using various physical and electrochemical and chemical analyses. The nanoparticles prepared at 900 °C reveal the best performance for the catalytic oxidation of Hydrogen peroxide (H2O2) and bisphenol A. The decomposition potentials of H2O2 (1.0 mm) and bisphenol A (100.0 µm) on the catalyst modified electrode are observed to be +0.40 and +0.15 V (versus Ag/AgCl), respectively. It is observed that the catalytic performances to the oxidation reactions are mainly related to MnO decorated outside the SNC particles compared to MnS formed inside the particles. The electrode reveals a wide dynamic range with the low detection limits for H2O2 (0.08 (±0.02) µm) and bisphenol A (0.17 (±0.04) µm). This study will provide essential clues for the future catalyst design.

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Fabrication of curcumin conjugated self-assembled lysozyme nanoparticle as potential food additive with enhanced antibiofilm and antioxidant activity

Mohanty,

Paul

2024

Biocatalysis and Agricultural Biotechnology

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Spontaneous Formation of Fluorescent Carbon Nanoparticles in Glutaraldehyde Solution and Their Fluorescence Mechanism

Cited by 3 publications

References 18 publications

Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

Synthesis of MnS/MnO Decorated N, S‐Doped Carbon Derived from a Mn(II)‐Coordinated Polymer for the Catalytic Oxidation of H₂O₂ and Bisphenol A

Fabrication of curcumin conjugated self-assembled lysozyme nanoparticle as potential food additive with enhanced antibiofilm and antioxidant activity

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Spontaneous Formation of Fluorescent Carbon Nanoparticles in Glutaraldehyde Solution and Their Fluorescence Mechanism

Cited by 3 publications

References 18 publications

Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

Functionalization of a Fully Integrated Electrophotonic Silicon Circuit for Biotin Sensing

Synthesis of MnS/MnO Decorated N, S‐Doped Carbon Derived from a Mn(II)‐Coordinated Polymer for the Catalytic Oxidation of H2O2 and Bisphenol A

Fabrication of curcumin conjugated self-assembled lysozyme nanoparticle as potential food additive with enhanced antibiofilm and antioxidant activity

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Product

Resources

About

Synthesis of MnS/MnO Decorated N, S‐Doped Carbon Derived from a Mn(II)‐Coordinated Polymer for the Catalytic Oxidation of H₂O₂ and Bisphenol A