Synthesis of dual-emissive ratiometric probe of BSA-Au NCs and BSA-Cu NCs and their sensitive and selective detection of copper and mercury ions

Zhong, Kunfeng; Hao, Changchun; Liu, Hengyu; Yang, Haiyan; Sun, Run‐Cang

doi:10.1016/j.jphotochem.2020.113100

Cited by 18 publications

(14 citation statements)

References 47 publications

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“…A strong absorption peak was observed at 286 nm, corresponding to the aromatic residues of amino acids in bovine serum albumin (BSA). 30 No obvious characteristic absorption peak was detected above 500 nm in the spectrogram, which confirmed the formation of CuNCs with a small size because the characteristic peak of larger copper nanoparticles was at 560 nm. 30 The infrared spectrum of the CuNCs is shown in Fig.…”

Section: Resultsmentioning

confidence: 87%

“…These results indicated that BSA exists in CuNCs as stabilizers because carboxylic acid ions in BSA make CuNCs water-soluble and biocompatible. 30…”

Section: Resultsmentioning

confidence: 99%

“…30 No obvious characteristic absorption peak was detected above 500 nm in the spectrogram, which confirmed the formation of CuNCs with a small size because the characteristic peak of larger copper nanoparticles was at 560 nm. 30 The infrared spectrum of the CuNCs is shown in Fig. 1C.…”

Section: Characterization Of Cuncsmentioning

confidence: 87%

“…These results indicated that BSA exists in CuNCs as stabilizers because carboxylic acid ions in BSA make CuNCs water-soluble and biocompatible. 30 The UV-Vis spectroscopy data of TMB in CuNCs and free Cu 2+ solution are shown in Fig. 1D, and the results showed that CuNCs and free Cu 2+ in the TMB system show catalytic oxidation activity, but the catalytic activity of CuNCs is about 2 times that of free Cu 2+ .…”

Section: Characterization Of Cuncsmentioning

confidence: 93%

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A multicolor biosensor for alkaline phosphatase activity detection based on the peroxidase activity of copper nanoclusters and etching of gold nanorods

Luo

Lin

Cai

et al. 2022

Analyst

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Section: Resultsmentioning

confidence: 87%

“…These results indicated that BSA exists in CuNCs as stabilizers because carboxylic acid ions in BSA make CuNCs water-soluble and biocompatible. 30…”

Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Cuncsmentioning

confidence: 87%

Section: Characterization Of Cuncsmentioning

confidence: 93%

See 2 more Smart Citations

A multicolor biosensor for alkaline phosphatase activity detection based on the peroxidase activity of copper nanoclusters and etching of gold nanorods

Luo

Lin

Cai

et al. 2022

Analyst

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“…The wide peak from 3300 to 3600 cm −1 was ascribed to OH or NH stretching. [29,30] According to the previous study, there was a peak at 2500-2600 cm -1 corresponding to the SH stretching band of BSA, [31] which was not observed in the spectrum of MoS 2 @Au@BSA. This indicated that SH groups interacted with Au and formed Au-S bonds (Figure S2, Supporting Information).…”

Section: Characterizations Of Mos 2 @Au@bsa Nanosheetsmentioning

confidence: 91%

Injectable Hydrogel Based on Defect‐Rich Multi‐Nanozymes for Diabetic Wound Healing via an Oxygen Self‐Supplying Cascade Reaction

Duan

et al. 2022

Small

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Diabetic wound healing remains challenging owing to the risk for bacterial infection, hypoxia, excessive glucose levels, and oxidative stress. Glucose‐activated cascade reactions can consume glucose and eradicate bacteria, avoiding the direct use of hydrogen peroxide (H2O2) and wound pH restriction on peroxidase‐like activity. However, the anoxic microenvironment in diabetic wounds impedes the cascade reaction due to the oxygen (O2) dependence of glucose oxidation. Herein, defect‐rich molybdenum disulfide nanosheets loaded with bovine serum albumin‐modified gold nanoparticle (MoS2@Au@BSA NSs) heterostructures are designed and anchored onto injectable hydrogels to promote diabetic wound healing through an O2 self‐supplying cascade reaction. BSA decoration decreases the particle size of Au, increasing the activity of multiple enzymes. Glucose oxidase‐like Au catalyzes the oxidation of glucose into gluconic acid and H2O2, which is transformed into a hydroxyl radical (•OH) catalyzed by peroxidase‐like MoS2@Au@BSA to eradicate bacteria. When the wound pH reaches an alkalescent condition, MoS2@Au@BSA mimicks superoxide dismutase to transform superoxide anions into O2 and H2O2, and decomposes endogenous and exogenous H2O2 into O2 via catalase‐like mechanisms, reducing oxidative stress, alleviating hypoxia, and facilitating glucose oxidation. The MoS2@Au@BSA nanozyme‐anchored injectable hydrogel, composed of oxidized dextran and glycol chitosan crosslinked through a Schiff base, significantly accelerates diabetic wound healing.

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Paper-based device for the selective determination of doxycycline antibiotic based on the turn-on fluorescence of bovine serum albumin–coated copper nanoclusters

Yin

Liu

et al. 2022

Microchim Acta

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Synthesis of dual-emissive ratiometric probe of BSA-Au NCs and BSA-Cu NCs and their sensitive and selective detection of copper and mercury ions

Cited by 18 publications

References 47 publications

A multicolor biosensor for alkaline phosphatase activity detection based on the peroxidase activity of copper nanoclusters and etching of gold nanorods

A multicolor biosensor for alkaline phosphatase activity detection based on the peroxidase activity of copper nanoclusters and etching of gold nanorods

Injectable Hydrogel Based on Defect‐Rich Multi‐Nanozymes for Diabetic Wound Healing via an Oxygen Self‐Supplying Cascade Reaction

Paper-based device for the selective determination of doxycycline antibiotic based on the turn-on fluorescence of bovine serum albumin–coated copper nanoclusters

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