Introduction of cellulose-cysteine Schiff base as a new ligand for the fabrication of blue fluorescent gold nanoclusters for the detection of indapamide drug

Kailasa, Suresh Kumar; Kateshiya, Mehul R.; Malek, Naved I.

doi:10.1016/j.molliq.2020.114305

Cited by 18 publications

(6 citation statements)

References 48 publications

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“…DAM‐cysteine‐MoNCs were synthesized mainly based on a protocol described previously with some modifications. [ 42 ] First, maltose (1.0 g) was oxidized with NaIO 4 (1.0 g) at C 2 –C 3 position for 24 h at room temperature in the dark. The residual NaIO 4 was then neutralized by using excess polyethylene glycol, and the obtained DAM was filtered.…”

Section: Methodsmentioning

confidence: 99%

Microwave‐assisted synthesis of blue fluorescent molybdenum nanoclusters with maltose‐cysteine Schiff base for detection of myoglobin and γ‐aminobutyric acid in biofluids

2023

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The fabrication of stable fluorescent MoNCs (molybdenum nanoclusters) in aqueous media is quite challenging as it is not much explored yet. Herein, we report a facile and efficient strategy for fabricating MoNCs using 2,3 dialdehyde maltose‐cysteine Schiff base (DAM‐cysteine) as a ligand for detecting myoglobin and γ‐aminobutyric acid (GABA) in biofluids with high selectivity and sensitivity. The DAM‐cysteine‐MoNCs displayed fluorescence of bright blue color under a UV light at 365 nm with an emission peak at 444 nm after excitation at 370 nm. The synthesized DAM‐cysteine‐MoNCs were homogeneously distributed with a mean size of 2.01 ± 0.98 nm as confirmed by the high‐resolution transmission electron microscopy (HR‐TEM). Further, X‐ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FT‐IR) techniques were utilized to confirm the elemental oxidation states and surface functional groups of the DAM‐cysteine‐MoNCs. After the addition of myoglobin and GABA, the emission peak of DAM‐cysteine‐MoNCs at 444 nm was significantly quenched. This resulted in the development of a quantitative assay for the detection of myoglobin (0.1–0.5 μM) and GABA (0.125–2.5 μM) with the lower limit of detection as 56.48 and 112.75 nM for myoglobin and GABA, respectively.

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Section: Methodsmentioning

confidence: 99%

Microwave‐assisted synthesis of blue fluorescent molybdenum nanoclusters with maltose‐cysteine Schiff base for detection of myoglobin and γ‐aminobutyric acid in biofluids

2023

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“…Ultra-small nanostructure materials hold marked promise in analytical chemistry involving blue light emission due to their unique optical, physico-chemical, and electronic structures. [128][129][130][131] These nanostructure materials can be generated by various synthetic strategies. For example, blue-emitting BSA-Au NCs were synthesized by a microwave-assisted method.…”

Section: Blue Emissionmentioning

confidence: 99%

Perspectives of different colour‐emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes

et al. 2022

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In the past 2 decades, multicolour light‐emissive nanomaterials have gained significant interest in chemical and biological sciences because of their unique optical properties. These materials have drawn much attention due to their unique characteristics towards various application fields. The development of novel nanomaterials has become the pinpoint for different application areas. In this review, the recent progress in the area of multicolour‐emissive nanomaterials is summarized. The different emissions (white, orange, green, red, blue, and multicolour) of nanostructure materials (metal nanoclusters, quantum dots, carbon dots, and rare earth‐based nanomaterials) are briefly discussed. The potential applications of different colour‐emissive nanomaterials in the development of fluorescent inks, light‐emitting diodes, cell imaging, and sensing devices are briefly summarized. Finally, the future perspectives of multicolour‐emissive nanomaterials are discussed.

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“…The Schiff base bond is widely used to design biopolymer-based biomedical hydrogels as most Schiff base-crosslinked biopolymer hydrogels exhibit dynamic mechanical properties. [38][39][40] Schiff bases are also excellent ligands for metal coordination catalysts, 41 transition metal nanoclusters, 42 and metal-organic frameworks 43 for biomedical applications. However, note that not all protein and polypeptide hydrogels based on Schiff base crosslinking are structurally dynamic in cellular microenvironments.…”

Section: Introductionmentioning

confidence: 99%

Dynamic protein and polypeptide hydrogels based on Schiff base co-assembly for biomedicine

et al. 2022

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Introduction of cellulose-cysteine Schiff base as a new ligand for the fabrication of blue fluorescent gold nanoclusters for the detection of indapamide drug

Cited by 18 publications

References 48 publications

Microwave‐assisted synthesis of blue fluorescent molybdenum nanoclusters with maltose‐cysteine Schiff base for detection of myoglobin and γ‐aminobutyric acid in biofluids

Microwave‐assisted synthesis of blue fluorescent molybdenum nanoclusters with maltose‐cysteine Schiff base for detection of myoglobin and γ‐aminobutyric acid in biofluids

Perspectives of different colour‐emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes

Dynamic protein and polypeptide hydrogels based on Schiff base co-assembly for biomedicine

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