Synthesis of three-dimensional laccase-Cu3(PO4)2⋅3H2O microflowers via biomineralization for UV–vis epinephrine biosensing

Zhang, Miaorong; Zhang, Yan; Yang, Chuankai; Ma, Chunyun; Zhang, Yuhang; Tang, Jianguo

doi:10.1016/j.microc.2021.106911

Cited by 12 publications

(4 citation statements)

References 60 publications

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“…Moreover, Cu SSN showed good linearity in the epinephrine concentration range of 0.5–100 μg mL –1 with a 0.10 μg mL –1 limit of detection (LOD), which is lower than most currently reported epinephrine colorimetric biosensors (Table S4). − ,− …”

Section: Resultsmentioning

confidence: 99%

Solid Migration to Assemble a Flower-like Nanozyme with Highly Dense Single Copper Sites for Specific Phenol Oxidation

Chen

Zhang

Tian

et al. 2022

ACS Appl. Mater. Interfaces

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Nanozymes with high catalytic stability and sustainability have emerged as powerful competitors to natural enzymes for diverse biocatalytic applications. However, constructing a nanozyme with high specificity is one of their biggest challenges. Herein, we develop a facile solid migration strategy to access a flower-like single copper site nanozyme (Cu SSN) via direct transformation of copper foam activated by 2-methylimidazole. With highly clustered CuN3 sites whose local structure is similar to that of natural polyphenol oxidase, the Cu SSN exhibits excellent activity and specificity to oxidize phenols without peroxidase-like activity. Furthermore, the Cu SSN shows high sensitivity in the colorimetric detection of epinephrine with a low detection limit of 0.10 μg mL–1, exceeding that of most previously reported enzyme-mimicking catalysts. This work not only provides a simple method for the large-scale preparation of high-performance nanozymes but also offers an inspiration for the design of highly specific nanozymes by mimicking the synergy among sites in natural enzymes.

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Section: Resultsmentioning

confidence: 99%

Solid Migration to Assemble a Flower-like Nanozyme with Highly Dense Single Copper Sites for Specific Phenol Oxidation

Chen

Zhang

Tian

et al. 2022

ACS Appl. Mater. Interfaces

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“…Epinephrine was able to be detected with good selectivity in a wide linear detection range (0.4-400 μg mL −1 ) and low detection limit (0.1 μg mL −1 ) using this strategy. 68 Additionally, HRP-Cu 3 (PO 4 ) 2 hNFs was confirmed to be a highly efficient UV-vis colorimetric sensor for the detection of H 2 O 2 . The results demonstrated that HRP-Cu 3 (PO 4 ) 2 hNFs had rapid response, high sensitivity and good reusability for the detection of H 2 O 2 compared to free enzyme assay.…”

Section: Electrochemical Detection Based On Hnfsmentioning

confidence: 92%

Role of pretty nanoflowers as novel versatile analytical tools for sensing in biomedical and bioanalytical applications

Dadi,

Ocsoy

2024

Smart Medicine

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In recent years, an encouraging breakthrough in the synthesis of immobilized enzymes in flower‐shaped called “organic‐inorganic hybrid nanoflowers (hNFs)” with greatly enhanced catalytic activity and stability were reported. Although, these hNFs were discovered by accident, the enzymes exhibited highly enhanced catalytic activities and stabilities in the hNFs compared with the free and conventionally immobilized enzymes. Herein, we rationally utilized the catalytic activity of the hNFs for analytical applications. In this comprehensive review, we covered the design and use of the hNFs as novel versatile sensors for electrochemical, colorimetric/optical and immunosensors‐based detection strategies in analytical perspective.

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“…In the past few years, copper (II) orthophosphate trihydrate Cu 3 (PO 4 ) 2 •3H 2 O has gained a significant increase of the scientific interest. Thus, a number of promising composites have been obtained with the participation of this compound: a colorimetric platform for glucose detection [1], a colorimetric biosensor for epinephrine identification [2], a nanomaterial for pyruvate specification in fermentation processes [3], a catalyst for olive oil hydrolysis [4], a surfactant [5], an enzyme immobilizer [6] and a nanocatalyst for the hydrolysis of allergenic cow᾽s milk proteins [7].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and thermochemical properties of Cu3(PO4)2·3H2O

Kozma¹,

Golub²,

Golub³

et al. 2023

chemija

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Copper (II) orthophosphate trihydrate Cu3(PO4)2·3H2O has been synthesized by the exchange chemical reactions in aqueous solutions from the compounds Cu(NO3)2·3H2O, NH4OH and H3PO4. The final product has been investigated by using atomic absorption spectroscopy (AAS), infrared spectrometry (IRS), differential thermal analysis (DTA) and X-ray powder diffraction (XRD) techniques. For the first time, the experimental heat capacity Ср° of Cu3(PO4)2·3H2O has been investigated in the temperature range 198‒402 K. Combining the experimental results with the literature data made it possible to determine the thermodynamic and thermochemical properties, such as enthalpy НТ° , entropy SТ° , Gibbs energy GТ° , enthalpy of formation ΔHf°(T), Gibbs energy of formation ΔGf°(T) and logarithm of the equilibrium constant of formation reaction log[Kf°(T)], for the title compound. It was found that at the extreme temperatures of the experiment, Cu3(PO4)2·3H2O has Ср° = 245.96 J·mol–1·K–1, Н° = –3169.59 kJ·mol–1, S° = 311.34 J·mol–1·K–1, G° = –3231.24 kJ·mol–1 (at 198 K); Ср° = 455.31 J·mol–1·K–1, Н° = –3097.93 kJ·mol–1, S° = 551.48 J·mol–1·K–1, G° = –3319.62 kJ·mol–1, ΔHf° = –3138.48 kJ·mol–1, ΔGf° = –2625.39 kJ·mol–1, log[K ] = 341.13 (at 402 K).

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Synthesis of three-dimensional laccase-Cu3(PO4)2⋅3H2O microflowers via biomineralization for UV–vis epinephrine biosensing

Cited by 12 publications

References 60 publications

Solid Migration to Assemble a Flower-like Nanozyme with Highly Dense Single Copper Sites for Specific Phenol Oxidation

Solid Migration to Assemble a Flower-like Nanozyme with Highly Dense Single Copper Sites for Specific Phenol Oxidation

Role of pretty nanoflowers as novel versatile analytical tools for sensing in biomedical and bioanalytical applications

Thermodynamic and thermochemical properties of Cu3(PO4)2·3H2O

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