4.7 Article

CuBi bimetallic aerogel as peroxidase-like nanozyme for total antioxidant capacity colorimetric detection

Related references

Note: Only part of the references are listed.
Article Nanoscience & Nanotechnology

Pdlr Aerogels with Boosted Peroxidase-like Activity for a Sensitive Total Antioxidant Capacity Colorimetric Bioassay

Xiaofeng Tan et al.

Summary: Metallic aerogels with unique three-dimensional interconnected channels, self-supported architectures, and pure metallic backbones have great potential in various fields. However, their cumbersome synthetic process and impurities hinder the stability and enzyme-like activity. In this study, a PdIr bimetallic aerogel prepared in the ethanol phase via spontaneous assembly and a surfactant-free strategy exhibited fast gelation kinetics and high peroxidase-like activity. The PdIr aerogels also showed good stability and survivability at elevated temperature and different pH values.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Chemistry, Analytical

Manganese-doped iron coordination polymer nanoparticles with enhanced peroxidase-like activity for colorimetric detection of antioxidants

Chenghui Zhang et al.

Summary: The peroxidase-mimetic activity of Fe-based CPNs was enhanced by the manganese doping strategy, leading to the development of sensitive colorimetric assays for detection of various antioxidants. This work proposes a feasible strategy for designing convenient and sensitive assays for antioxidants based on an explicit detection mechanism.

ANALYST (2022)

Article Biophysics

Pd-Fe3O4 Janus nanozyme with rational design for ultrasensitive colorimetric detection of biothiols

Wei Duan et al.

Summary: In this study, an ultrasensitive colorimetric method for biothiols detection was developed based on the design of a Janus Pd-Fe3O4 nanozyme using density functional theory. The nanozyme showed enhanced peroxidase-like activity and sensitivity to biothiols due to its unique structure. The method demonstrated a detection limit of 3.1 nM and successfully differentiated biothiols levels in normal and cancer cells, showing great potential for biological and clinical analysis.

BIOSENSORS & BIOELECTRONICS (2022)

Article Chemistry, Analytical

Single-atom iron confined within polypyrrole-derived carbon nanotubes with exceptional peroxidase-like activity for total antioxidant capacity

Na Song et al.

Summary: This study successfully synthesized highly efficient and durable Fe-N-doped carbon nanotubes for enzyme mimicking, and developed a simple colorimetric assay for detecting H2O2 and AA with high sensitivity.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

Article Biophysics

A versatile nanozyme integrated colorimetric and photothermal lateral flow immunoassay for highly sensitive and reliable Aspergillus flavus detection

Meijuan Liang et al.

Summary: In this study, a compact Cu-anchored PDA (PCu) was engineered as the efficient signal element for multimodal LFA (mLFA), providing triple signal readouts and highly reliable analytical performance.

BIOSENSORS & BIOELECTRONICS (2022)

Article Chemistry, Multidisciplinary

Ultrasmall Gold Nanoclusters-Enabled Fabrication of Ultrafine Gold Aerogels as Novel Self-Supported Nanozymes

Jie Xu et al.

Summary: This study reports a new method for fabricating metal aerogels using ultrasmall metal nanoclusters as building blocks. The obtained gold aerogels exhibit excellent enzyme-mimic properties and possess a self-supported porous network structure. Detailed characterization reveals the key factors influencing the gelation process. This work provides insights into engineering the structure and properties of metal aerogels for further applications.

SMALL (2022)

Article Chemistry, Applied

Nanozyme-enabled sensing strategies for determining the total antioxidant capacity of food samples

Fuyuan Zhang et al.

Summary: A sensor based on Au@Cu-HCF nanozyme was developed for measuring the total antioxidant capacity (TAC) of plant-derived food samples. The sensor utilizes a color change to determine TAC and showed good agreement with commercial kit results.

FOOD CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Cu-Doped Polypyrrole with Multi-Catalytic Activities for Sono-Enhanced Nanocatalytic Tumor Therapy

Ting Chen et al.

Summary: In this study, a Cu-doped polypyrrole nanocatalyst with multi-catalytic activities was developed, which, when combined with sonosensitizers and DSPE-PEG modification, induced severe oxidative damage to tumor cells through ultrasound irradiation. The notable tumor-specific biodegradability and demonstrated tumor suppression in vitro and in vivo highlight the potential of this nanocatalyst for oxidative stress-based antitumor therapy.

SMALL (2022)

Article Engineering, Environmental

Laminar membranes assembled by ultrathin cobalt-copper oxide nanosheets for nanoconfined catalytic degradation of contaminants

Chenchen Meng et al.

Summary: This study implemented the concept of nanoconfinement catalysis using a two-dimensional membrane and achieved the degradation of organic contaminants with high efficiency, fast decomposition rate, and excellent catalytic stability.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Multidisciplinary

Copper-carbon dot aerogel: a high-performance mimetic peroxidase and its application for versatile colorimetric bioassays

Tao Zhang et al.

Summary: This study successfully fabricated three-dimensional hierarchically porous copper-carbon dot aerogels (Cu-CDA) and found that they exhibited high peroxidase-like activity. Utilizing this material, versatile colorimetric bioassays targeting hydrogen peroxide, diabetes-associated glucose, and alpha-glucosidase were explored, and inhibitors of alpha-glucosidase, which are used as antidiabetic and antiviral agents, were screened.

CHEMICAL COMMUNICATIONS (2022)

Article Nanoscience & Nanotechnology

Pdlr Aerogels with Boosted Peroxidase-like Activity for a Sensitive Total Antioxidant Capacity Colorimetric Bioassay

Xiaofeng Tan et al.

Summary: Metallic aerogels with unique physicochemical properties and high activity can mimic natural enzymes. The newly prepared PdIr bimetallic aerogel shows higher gelation kinetics, excellent peroxidase-like activity, and stability.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Engineering, Environmental

Cu doped SnS2 nanostructure induced sulfur vacancy towards boosted photocatalytic hydrogen evolution

Yue Liu et al.

Summary: By doping copper to introduce sulfur vacancies, the efficiency of SnS2 photocatalyst is enhanced, resulting in a higher hydrogen generation rate. The sulfur vacancies facilitate the separation of photogenerated carriers and increase carrier density, contributing to improved photocatalytic reactions.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Biophysics

AuPeroxidase nanozymes: Promises and applications in biosensing

Bankuru Navyatha et al.

Summary: Gold nanozymes, with intrinsic catalytic activity, have emerged as a promising alternative to natural enzymes due to their ease of synthesis, surface modifications, stability, and excellent peroxidase activity. Their use in biosensing applications has seen a significant increase in recent years, with a focus on assessing peroxidase activity and detection of various analytes. Researchers have also explored the mechanisms behind the intrinsic peroxidase activity in gold nanozymes.

BIOSENSORS & BIOELECTRONICS (2021)

Article Chemistry, Multidisciplinary

Cryoaerogels and Cryohydrogels as Efficient Electrocatalysts

Dennis Mueller et al.

Summary: Additive-free cryoaerogel coatings from noble metal nanoparticles are prepared and electrochemically investigated. The materials exhibit superior morphological and catalytic properties compared to simply immobilized nanoparticles. Superstructured materials prepared by cryoaerogelation have increased electrochemically active surface areas and catalytic activity for the ethanol oxidation reaction. Additionally, cryohydrogels with cellular to dendritic structure show the best catalytic performance and highest ECSA, offering a novel platform for easier and faster production of cryogelated materials for wet-chemical applications.

SMALL (2021)

Article Nanoscience & Nanotechnology

B,N-Doped PdRu Aerogels as High-Performance Peroxidase Mimics for Sensitive Detection of Glucose

Yuting Zeng et al.

Summary: The study introduces a new type of PdRu aerogels co-doped with boron and nitrogen, showing improved peroxidase mimicking activity. These aerogels can be used for sensitive determination of glucose with linear detection effect and low detection limit.

ACS APPLIED MATERIALS & INTERFACES (2021)

Review Chemistry, Physical

Single-atom nanozymes and environmental catalysis: A perspective

Vishal Kandathil et al.

Summary: Nanozymes, with their intrinsic enzyme-like activity, have gained significant attention in the scientific community worldwide. The development of Single-Atom Nanozymes (SANs) presents numerous opportunities for real-time applications in various fields. By evenly distributing active sites on a solid support, SANs exhibit high efficiency, activity, and sustainability, similar to homogeneous catalysts.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2021)

Article Chemistry, Physical

Ag-Cu aerogel for electrochemical CO2 conversion to CO

Wenbo Wang et al.

Summary: In this study, Ag-Cu bimetallic aerogels were prepared by co-reducing Ag+ and Cu2+ precursors, with the optimal Ag88Cu12 composition showing enhanced efficiency, selectivity, and stability for CO2 reduction reaction. The introduction of Cu and the unique properties of the metal aerogel contribute to the improved performance of the catalyst.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

Article Chemistry, Analytical

Single-atom Bi-anchored Au hydrogels with specifically boosted peroxidase-like activity for cascade catalysis and sensing

Hongye Yan et al.

Summary: The study synthesized single-atom Bi-anchored Au hydrogels to precisely regulate nanozyme activity and specificity at the atomic scale, achieving a deeper understanding of their catalytic nature. By introducing single Bi atoms, the POD-like activity was significantly enhanced, while having negligible effects on other closely related redox enzyme activities.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

Article Chemistry, Multidisciplinary

White Peroxidase-Mimicking Nanozymes: Colorimetric Pesticide Assay without Interferences of O2 and Color

Xin Liang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

Article Chemistry, Multidisciplinary

Immunomodulation-Enhanced Nanozyme-Based Tumor Catalytic Therapy

Bolong Xu et al.

ADVANCED MATERIALS (2020)

Review Chemistry, Multidisciplinary

Nanozymes: Classification, Catalytic Mechanisms, Activity Regulation, and Applications

Yanyan Huang et al.

CHEMICAL REVIEWS (2019)

Article Chemistry, Physical

High-conductivity reduced-graphene-oxide/copper aerogel for energy storage

Jie Zhao et al.

NANO ENERGY (2019)

Review Food Science & Technology

Development of Nanozymes for Food Quality and Safety Detection: Principles and Recent Applications

Lunjie Huang et al.

COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY (2019)

Article Chemistry, Multidisciplinary

Construction of Active Site in a Sintered Copper-Ceria Nanorod Catalyst

Wen-Zhu Yu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Promoting Electrocatalysis upon Aerogels

Bin Cai et al.

ADVANCED MATERIALS (2019)

Article Materials Science, Multidisciplinary

Emerging Noble Metal Aerogels: State of the Art and a Look Forward

Ran Du et al.

MATTER (2019)

Article Chemistry, Multidisciplinary

Plating Precious Metals on Nonprecious Metal Nanoparticles for Sustainable Electrocatalysts

Lei Wang et al.

NANO LETTERS (2017)

Review Chemistry, Multidisciplinary

Cu and Cu-Based Nanoparticles: Synthesis and Applications in Review Catalysis

Manoj B. Gawande et al.

CHEMICAL REVIEWS (2016)

Article Chemistry, Analytical

Copper nanoclusters as an on-off-on fluorescent probe for ascorbic acid

Hanbing Rao et al.

MICROCHIMICA ACTA (2016)

Review Chemistry, Multidisciplinary

Noble Metal Aerogels-Synthesis, Characterization, and Application as Electrocatalysts

Wei Liu et al.

ACCOUNTS OF CHEMICAL RESEARCH (2015)

Article Biophysics

DNA-stabilized bimetallic nanozyme and its application on colorimetric assay of biothiols

Yanhua Sun et al.

BIOSENSORS & BIOELECTRONICS (2015)

Article Chemistry, Physical

Multimetallic Aerogels by Template-Free Self-Assembly of Au, Ag, Pt, and Pd Nanoparticles

Anne-Kristin Herrmann et al.

CHEMISTRY OF MATERIALS (2014)

Article Chemistry, Multidisciplinary

Bimetallic Aerogels: High-Performance Electrocatalysts for the Oxygen Reduction Reaction

Wei Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2013)

Article Electrochemistry

A highly sensitive ascorbic acid sensor using a Ni-Pt electrode

Yu-Ching Weng et al.

ELECTROCHIMICA ACTA (2011)

Article Chemistry, Physical

Ascorbic acid as radiation protector on polysaccharides used in food industry

AJ Aliste et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2004)

Review Chemistry, Multidisciplinary

Chemistry of aerogels and their applications

AC Pierre et al.

CHEMICAL REVIEWS (2002)

Review Chemistry, Organic

Recent progress in the design and synthesis of artificial enzymes

WB Motherwell et al.

TETRAHEDRON (2001)