Heterometallic nanomaterials: activity modulation, sensing, imaging and therapy

Li, Shanshan; Wang, Ai-Jun; Yuan, Pei-Xin; Mei, Li-Ping; Zhang, Lu; Feng, Jiu‐Ju

doi:10.1039/d2sc00460g

Cited by 29 publications

(5 citation statements)

References 255 publications

(691 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Noble metal nanomaterials have drawn wide attention due to their superior properties in varied applications, such as catalysis, sensors, biomedicine, and many others. − It is believed that their performance is largely dependent on the sizes, shapes, and structures, which can be subtly achieved by manipulating various synthetic techniques. Up to now, well-defined metal nanomaterials, such as nanorods, nanowires, nanocubes, and nanosheets, ,, have been prepared successfully.…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid-Guided One-Step Green Synthesis of Au–Pd Superbranched Trigonal Nanoframes and Their Highly Selective Hydrogenation of 4-Nitrostyrene

Liu,

Yao,

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Developing a simple, environmentally friendly, and mild method to one-step prepare bimetallic nanoframes is pretty important but still technically challenging. In this paper, a simple and easy-to-operate ionic liquid (IL)-regulated protocol is proposed to fabricate Au−Pd superbranched trigonal nanoframes (STNFs) in water at room temperature. In the aqueous solution containing precursors (Na 2 PdCl 4 and HAuCl 4 ) and a reducing agent (ascorbic acid), a common IL 1-octyl-3-methylimidazolium chloride ([C 8 mim]Cl) was used to guide the anisotropic growth and construction of Au−Pd STNFs, brightly showing green and energy-saving characteristics. Au−Pd STNFs take shape as unique two-dimensional (2D) trigonal frameworks containing multilevel orderly branches. It is found that [C 8 mim]Cl is crucial to the formation of Au−Pd STNFs. Owing to the unique structures, high specific surface areas, large freestanding sizes, and probably electronic effects between Au and Pd, Au−Pd STNFs-1 exhibit dramatically enhanced catalytic activity, selectivity, durability, and convenience for recycling in the 4-nitrostyrene hydrogenation reaction. Specifically, 4-nitrostyrene can be converted completely only within 5.0 min at 25 °C under atmospheric pressure, and the selectivity toward 4-nitroethylbenzene is as high as 100% and maintains good performance after five cycles. It is expected that well-constructed Au−Pd STNFs also display advanced potential in other applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Ionic Liquid-Guided One-Step Green Synthesis of Au–Pd Superbranched Trigonal Nanoframes and Their Highly Selective Hydrogenation of 4-Nitrostyrene

Liu,

Yao,

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…To address these issues, doping Pt with transition metals (e.g., Fe, Co, Ni, etc.) and introducing heteroatom (e.g., N, B, S, and P)-doped carbon matrixes would cut down the usage of Pt without any expense of catalytic properties. , As an additional component, Ni is well known as an excellent catalyst, which usually shows catalase-like activity. In the end, PtNi alloy would have impressive catalytic activity and stability when compared to individual metal, mainly attributed to the synergistic effects between the bimetals, coupled with the fine modulation in the local electronic structures and surface properties.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Doped Carbon Nanoflowers Decorated with PtNi Nanoparticles for Colorimetric Detection of Total Antioxidant Capacity

Mao

Zhang

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

A total antioxidant capacity (TAC) assay plays an essential role in evaluating antioxidant behaviors. It mainly involves examining the dosages of antioxidants such as ascorbic acid (AA), while TAC can be measured by nanozyme with peroxidase-like activity. Herein, nitrogen-doped carbon nanoflowers decorated with uniform PtNi nanoparticles (PtNi/NCFs) were fabricated by a simple pyrolysis strategy. The obtained PtNi/NCFs showed high peroxidase-mimicking activity to catalyze 3,3′,5,5′-tetramethylbenzidine (TMB) oxidation by generating rich hydroxyl radicals (·OH) in the H2O2 system. By virtue of the PtNi/NCFs nanozyme, a visual colorimetric sensor was developed for assays of H2O2 and AA. The limits of detection were as low as 45.3 and 0.94 μM for determination of H2O2 and AA with linear ranges of 100–1000 and 1.0–20.0 μM, respectively. Moreover, such sensor was also successfully employed to detect AA and H2O2 in real tablets and juices. The PtNi/NCFs nanozyme holds great potential for practical applications.

show abstract

“…As a powerful detection technology, electrochemiluminescence (ECL) has attracted the wide attention of researchers. − Traditional ECL detection is usually conducted using the photomultiplier tube (PMT) to collect the excited emission. , Obviously, the requirement of a specific instrument raises the cost and limits the application range. To solve this shortage, many efforts have been made in the development of visual ECL biosensors. − Visual detection does not need complex instruments or well-trained operators, which makes it more suitable for portable and low-cost detection.…”

Section: Introductionmentioning

confidence: 99%

Visual Electrochemiluminescence Biosensor Chip Based on Distance Readout for Deoxynivalenol Detection

et al. 2023

View full text Add to dashboard Cite

Visual electrochemiluminescence (ECL) biosensors do not need complex instruments or well-trained operators, which is regarded as an ideal choice for portable and low-cost detection. But traditional visual ECL biosensors are based on the change in ECL intensity, which is easily affected by environmental factors and signal acquisition processes. In this work, a visual ECL biosensor chip based on distance readout has been developed for the first time. The chip is composed of a square detection region and a visual channel region, which are modified with graphene oxide (GO) and gold nanoparticles (AuNPs)@Ti3C2 nanocomposites, respectively. Target molecules can release aptamers adsorbed on the GO surface of the detection region and further change the electrode potential of the visual channel region, which can determine the length of the long channel that generates visible ECL signals. The application of AuNPs@Ti3C2 nanocomposites can effectively enhance ECL intensity by six times. Through the unique design of the sensor chip, quantification detection can be achieved based on the length change instead of the traditional intensity change. This visual ECL sensor is successfully applied for deoxynivalenol toxin detection in actual samples, demonstrating that the introduction of the distance readout strategy into ECL sensing has a good prospect in on-site testing.

show abstract

Heterometallic nanomaterials: activity modulation, sensing, imaging and therapy

Abstract: Heterometallic nanomaterials (HMNMs) display superior physicochemical properties and stability to monometallc counterparts, accompanied by wider applications in fields of catalysis, sensing, imaging, and therapy due to the synergistic effects between...

Cited by 29 publications

References 255 publications

Ionic Liquid-Guided One-Step Green Synthesis of Au–Pd Superbranched Trigonal Nanoframes and Their Highly Selective Hydrogenation of 4-Nitrostyrene

Ionic Liquid-Guided One-Step Green Synthesis of Au–Pd Superbranched Trigonal Nanoframes and Their Highly Selective Hydrogenation of 4-Nitrostyrene

Nitrogen-Doped Carbon Nanoflowers Decorated with PtNi Nanoparticles for Colorimetric Detection of Total Antioxidant Capacity

Visual Electrochemiluminescence Biosensor Chip Based on Distance Readout for Deoxynivalenol Detection

Contact Info

Product

Resources

About