Acidophilic S-doped carbon quantum dots derived from cellulose fibers and their fluorescence sensing performance for metal ions in an extremely strong acid environment

Yang, Guanghui; Wan, Xuejuan; Su, Yikun; Zeng, Xierong; Tang, Jiaoning

doi:10.1039/c6ta05943k

Cited by 139 publications

(81 citation statements)

References 45 publications

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“…On the contrary, the slight decrease on the two peaks could be observed when other metal ions added into the FPHU ethanol solution. We proposed that Fe 3+ interacted with carbonyl and secondary amine to form complexes by coordination, which strengthened the UV absorption …”

Section: Resultsmentioning

confidence: 99%

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Liu

Zhang

et al. 2018

J of Applied Polymer Sci

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Polyurethane (PU) is widely used in biomedical applications owing to its excellent physical and chemical properties. As an isocyanate‐free PU material, fluorescent poly(hydroxyurethane) (FPHU) is synthesized from the addition of the cyclic carbonates with amines rather than the toxic isocyanate with diols, which reduces the possible injury to the human due to trace amounts of the isocyanate residues. Herein, we report the biocompatibility of a FPHU that can be synthesized from carbon dioxide, bisepoxides, and diamine in tandem. Of unique, FPHU exhibits a strong blue fluorescence and is selectively sensitive to Fe3+ with a detection limit of 4.56 μM. The overall results of the methylthiazolyldiphenyl‐tetrazolium, cytokine release, and hemolysis assays for FPHU indicates that FPHU has much lower cytotoxicity and immunotoxicity compared with the traditional isocyanate PU, as well as a good blood compatibility with less than 5% hemolysis rate. Therefore, FPHU presents as a kind of safer PU and can be prospectively applied in medical materials.

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Section: Resultsmentioning

confidence: 99%

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Liu

Zhang

et al. 2018

J of Applied Polymer Sci

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“…These carbon quantum dots exhibited excitation-dependent fluorescence emission behavior. Carbon quantum dots with excitationindependent fluorescent properties have been synthesized from the same precursor, microcrystalline cellulose, but using harsher conditions, that is a concentrated solution of sulfuric acid and higher temperature (200 °C instead of 100 °C) 257 . Perhaps the excitation-independent behavior is a sign of a more homogeneous batch of carbon quantum dots.…”

Section: Nanocellulose-carbon Quantum Dot Compositesmentioning

confidence: 99%

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,060

702

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With increasing environmental and ecological concerns due to the use of petroleum based chemicals and products, the synthesis of fine chemicals and functional materials from natural resources is of great public value. Nanocellulose may prove to be one of the most promising green materials of modern times due to its intrinsic properties, renewability and abundance. In this review, we present nanocellulose-based materials from sourcing, synthesis, and surface modification of nanocellulose, to materials formation and applications. Nanocellulose can be sourced from biomass, plants or bacteria, relying of fairly simple, scalable and efficient isolation techniques. Mechanical, chemical, enzymatic treatments, or a combination of these, can be used to extract nanocellulose from natural sources. The properties of nanocellulose are dependent on the source, the isolation technique and potential subsequent surface transformations. Nanocellulose surface modification techniques are typically used to introduce either charged or hydrophobic moieties, and include: amidation, esterification, etherification, silylation, polymerization, urethanization, sulfonationand phosphorylation. Nanocellulose has excellent strength, Young's modulus, biocompatibility, and tunable self-assembly, thixotropic and photonic properties, which are essential for the applications of this material. Nanocellulose participates in the fabrication of a large range of nanomaterials and nanocomposites, including those based on polymers, metals, metal oxides and carbon. In particular, nanocellulose complements organic-based materials, where it imparts its mechanical properties to the composite. Nanocellulose is a promising material whenever material strength, flexibility and/or specific nanostructuring are required. Applications include functional paper, optoelectronics and antibacterial coatings, packaging, mechanically reinforced polymer composites, tissue scaffolds, drug delivery, biosensors, energy storage, catalysis, environmental remediation and 3 electrochemical controlled separation. Phosphorylated nanocellulose is a particularly interesting material, spanning a surprising set of applications in various dimensions including bone scaffolds, adsorbents, flame retardants and as a support for the heterogenization of homogeneous catalysts.

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“…The high uorescence quenching effect of Fe 3+ may originate from the fast electron transfer between Fe 3+ and oxygen-rich and nitrogen-rich groups on the surface of NCQDs. [45][46][47] Compared with other cations, electron-decient Fe 3+ has a higher binding affinity towards the electron-rich groups, so, it is easier to interact with electron-donating groups, such as -NHR, -OH, -NH 2 and -OR on the surface of NCQDs. For this coordination interaction, electron in the excited state of NCQDs would transfer to the unlled orbit of Fe 3+ , and lead to nonradiative electron/hole recombination, which results in the high uorescence quenching.…”

Section: Detection Of Metal Ions In Acidic Environmentmentioning

confidence: 99%

Hydrothermal synthesis of nitrogen-doped carbon quantum dots from microcrystalline cellulose for the detection of Fe³⁺ ions in an acidic environment

et al. 2017

RSC Adv.

185

112

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Acidophilic S-doped carbon quantum dots derived from cellulose fibers and their fluorescence sensing performance for metal ions in an extremely strong acid environment

Abstract: Novel S-doped carbon quantum dots are synthesized and used for the detection of Fe3+ in an extremely strong acid environment.

Cited by 139 publications

References 45 publications

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Hydrothermal synthesis of nitrogen-doped carbon quantum dots from microcrystalline cellulose for the detection of Fe³⁺ ions in an acidic environment

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Acidophilic S-doped carbon quantum dots derived from cellulose fibers and their fluorescence sensing performance for metal ions in an extremely strong acid environment

Abstract: Novel S-doped carbon quantum dots are synthesized and used for the detection of Fe3+ in an extremely strong acid environment.

Cited by 139 publications

References 45 publications

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Fluorescent poly(hydroxyurethane): Biocompatibility evaluation and selective detection of Fe(III)

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Hydrothermal synthesis of nitrogen-doped carbon quantum dots from microcrystalline cellulose for the detection of Fe3+ ions in an acidic environment

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Product

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About

Hydrothermal synthesis of nitrogen-doped carbon quantum dots from microcrystalline cellulose for the detection of Fe³⁺ ions in an acidic environment