AuNPs

Materials

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BET
b nanozyme
b 10n
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sa 10n
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210AuNPs10nmTEM
407AuNPs20nmTEM
336AuNPs~13-20nmOthers
340AuNPs16nmTEM
658AuNPs
707AuNPs
807AuNPs25nmTEMThe morphology of the His-AuNCs was studied via their TEM images taken. As sit is seen from Fig. 1A, the average diameter of the synthesized His-AuNCs is about 2 nm and their morphology and size are nearly spherical and uniform. The TEM images were also utilized to estimate the average diameters of the enlarged AuNPs seeds in the presence of glucose (Fig. 1B). The average diameters of His-AuNPs seeds were 10 ± 2 nm, while the diameter of enlarged AuNPs depend on the concentration of glucose and self-catalyzed activity of AuNPs. The TEM images reveal that the AuNPs in the presence of 50 μM glucose can be enlarged to an average size of 17 nm (Fig. 1C), while the diameter of enlarged AuNPs in the presence of higher glucose concentrations of 100 μM further increased to about 25 nm (Fig. 1D).
903AuNPs10nmSEMFigure 6. The SEM and energy spectral pictures
925AuNPs30nmTEMAs shown in Fig. 2C, the red-colored AuNP@β-CD with an average diameter of ∼30 nm and distinct lattice showed unique dispersion performance in the absence of Hg2+.
1298AuNPs6.60.9nmDLShydrodynamic diametersμmol/minU/mg

Kinetics

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362AuNPsPODTMB8.7719μM/min33641/min362
658AuNPsPOD658
807AuNPsOXDGlucose24.6mM57.4-8M/s807
903AuNPsmulti-functionalitiesCO-HAuCl4-En903
925AuNPsOXDTMB925
942AuNPsCATH2O21.2M4.9-5M/s942

Applications

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340AuNPsEscherichia coli detectionEscherichia coliColor10-10E9CFU/mL10CFU/mL
658AuNPsdetection cysteineColor0.5-20μM0.5μM
658AuNPsdetection cysteine in biological fluidsColor0.5-50μM0.5μMTo this end, we tested human urine samples for different concentrations of cysteine using the system established in this paper.
707AuNPsdetection of Opisthorchis viverrini antigen (OvAg) in urine samplesOpisthorchis viverrini antigen (OvAg)Color23.4ng mL-1
807AuNPsdetermination of glucoseglucoseColor5-125μM3.4μM99.0-101.6%The IFE-based assay system was utilized for determining the levels of glucose in urine samples of a diabetic patients.
807AuNPsdetection of hydrogen peroxideH2O2Color5-135μM3.6μM
840AuNPshighly sensitive and specific identification of Aflatoxin B1Aflatoxin B1Color5-5120nM1.88nM91.5–117.6%
903AuNPsAnalysis of gas SamplesCOSERS
925AuNPsDetection of Hg2+Hg2+Color0.4-15μM0.147μM
925AuNPsDetection of Hg2+Hg2+Unsure0.4-8μM0.06μM
942AuNPsdecomposition of residual H2O2

References

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title
DOI
material type
comment
407In situ generated nanozyme-initiated cascade reaction for amplified surface plasmon resonance sensinghttps://doi.org/10.1039/d0cc01117gMetalAuNPs
336Amalgamated gold-nanoalloys with enhanced catalytic activity for the detection of mercury ions (Hg 2+) in seawater sampleshttps://doi.org/10.1007/s12274-020-2731-yMetaloligo-ethylene glycol modified gold nanoparticles
903A Highly Sensitive SERS and RRS Coupled Di-Mode Method for CO Detection Using Nanogolds as Catalysts and Bifunctional Probeshttps://doi.org/10.3390/nano10030450MetalNanogolds
658Enhancement of the Peroxidase-Like Activity of Iodine-Capped Gold Nanoparticles for the Colorimetric Detection of Biothiolshttps://doi.org/10.3390/bios10090113MetalA colorimetric assay was developed for the detection of biothiols, based on the peroxidase-like activity of iodine-capped gold nanoparticles (AuNPs).
1298Nanoparticles of chosen noble metals as reactive oxygen species scavengershttps://doi.org/10.1088/1361-6528/abc19fMetalnanoparticles of Au, Pt, pd,Ru, Rh
807Histidine capped-gold nanoclusters mediated fluorescence detection of glucose and hydrogen peroxide based on glucose oxidase-mimicking property of gold nanoparticles via an …https://doi.org/10.1016/j.jlumin.2020.117604Metalgold nanoparticles (AuNPs)
925Simply translating mercury detection into a temperature measurement: using an aggregation-activated oxidase-like activity of gold nanoparticleshttps://doi.org/10.1039/D0CC01445ACompositeAuNPs
707AuNPs-LISA, an efficient detection assay for Opisthorchis viverrini (Ov) antigen in urinehttps://doi.org/10.1016/j.talanta.2019.120592MetalIn the present study, we aimed to improve the signal enhancing system of traditional ELISA by using gold nanoparticles (AuNPs) with peroxidase-like activity on its surface instead of the horseradish peroxidase (HRP) system
210Gold nanoparticles doped metal-organic frameworks as near-infrared light-enhanced cascade nanozyme against hypoxic tumorshttps://doi.org/10.1007/s12274-020-2668-1Compositegold nanoparticles (AuNPs) doped iron-based metal-organic frameworks (GIM)
340Aptamer-NanoZyme mediated sensing platform for the rapid detection of Escherichia coli in fruit juicehttps://doi.org/10.1016/j.sbsr.2019.100313Metalaptamer-NanoZyme