Silver nanoparticles built-in zinc metal organic framework modified electrode for the selective non-enzymatic determination of H2O2

Arul, P.; John, S. Abraham

doi:10.1016/j.electacta.2017.03.097

Cited by 60 publications

(18 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The template could prevent self‐nucleation and the ordered nanostructures had uniform size and shape. Spherically shaped Ag NPs of around 50 nm have been synthesized using Zn‐MOF . Other MOFs like iron‐based MOF (MIL 101) (MIL stands for Material of Institut Lavoisier), zinc based MOF‐5, MOF‐177, zeolitic imidazolate frameworks, i.e., ZIF‐8, and ZIF‐90 have also been used to synthesize NPs confined within the crystal framework .…”

Section: Introductionmentioning

confidence: 99%

“…Spherically shaped Ag NPs of around 50 nm have been synthesized using Zn-MOF. [22] Other MOFs like iron-based MOF (MIL 101) (MIL stands for Material of Institut Lavoisier), zinc based MOF-5, MOF-177, zeolitic imidazolate frameworks, i.e., ZIF-8, and ZIF-90 have also been used to synthesize NPs confined within the crystal framework. [23][24][25] However, these MOF materials, used as templates, might possess drawbacks of potential health hazards in reason of the metals used for their formation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ultrafine Silver Nanoparticles Embedded in Cyclodextrin Metal‐Organic Frameworks with GRGDS Functionalization to Promote Antibacterial and Wound Healing Application

Shakya

Ren

et al. 2019

Small

132

112

View full text Add to dashboard Cite

The challenge of bacterial infection increases the risk of mortality and morbidity in acute and chronic wound healing. Silver nanoparticles (Ag NPs) are a promising new version of conventional antibacterial nanosystem to fight against the bacterial resistance in concern of the drug discovery void. However, there are several challenges in controlling the size and colloidal stability of Ag NPs, which readily aggregate or coalesce in both solid and aqueous state. In this study, a template‐guided synthesis of ultrafine Ag NPs of around 2 nm using water‐soluble and biocompatible γ‐cyclodextrin metal‐organic frameworks (CD‐MOFs) is reported. The CD‐MOF based synthetic strategy integrates AgNO3 reduction and Ag NPs immobilization in one pot achieving dual functions of reduced particle size and enhanced stability. Meanwhile, the synthesized Ag NPs are easily dispersible in aqueous media and exhibit effective bacterial inhibition. The surface modification of cross‐linked CD‐MOF particles with GRGDS peptide boosts the hemostatic effect that further enhances wound healing in synergy with the antibacterial effect. Hence, the strategy of ultrafine Ag NPs synthesis and immobilization in CD‐MOFs together with GRGDS modification holds promising potential for the rational design of effective wound healing devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrafine Silver Nanoparticles Embedded in Cyclodextrin Metal‐Organic Frameworks with GRGDS Functionalization to Promote Antibacterial and Wound Healing Application

Shakya

Ren

et al. 2019

Small

132

112

View full text Add to dashboard Cite

show abstract

“…[22][23] As summarized in previous reviews, the electrocatalysts cover metal and alloys (Au, Ag, Pt, Pd, AuAg, [a] Dr. PtPd, RuRh, et al), metal oxides (MnO 2 , TiO 2 , Co 3 O 4 , Fe 3 O 4 , CuO, et al), metal complexes (ferric hexacyanoferrate, metallophthalocyanines, metalloporphyrins, et al), organic and polymeric materials (redox dyes, conductive polymers, et al), carbon nanomaterials (carbon nanotubes, graphene, doped carbon materials, et al), as well as their hybrids with two or more composites. [24][25][26] Recent researches further develop cheap, abundant, easy-accessible materials including transition metal sulfides (TMSs), [27][28][29][30] metal-organic frameworks (MOFs), [31][32][33][34] layered double hydroxides (LDHs), [35][36] metal hydroxides, [37][38] polyoxometalates (POMs), [39][40][41] MXene, [42][43][44] zeolites [45][46][47] black phosphorus, [48][49] and porous silicon [50][51][52][53] based catalysts, et al Some non-enzyme biomaterials, like hemin, G-quadruplex, are also involved in inorganic-organic nanohybrid catalysts.…”

mentioning

confidence: 99%

Free‐Standing 3D Electrodes for Electrochemical Detection of Hydrogen Peroxide

et al. 2019

View full text Add to dashboard Cite

Electrochemical detection of hydrogen peroxide has achieved rapid development, due to the wide presence in industrial production, everyday life, bioprocess and green energy chemistry, etc. Many three‐dimensional structures have emerged as state‐of‐the‐art electrocatalysts due to their fascinating structures and electrochemical properties. This review summarizes free‐standing three‐dimensional electrocatalysts based on metal, metal oxide, carbon & silicon, and unconventional materials for detection of hydrogen peroxide with low limit of detection, wide range and fast response. The work also highlights their applications in near neutral conditions, especially their ability for single cell detection and mapping in biological environment. Further exploration into these materials together with devices design will facilitate the development of next‐generation detection technologies toward in situ and real‐time detection and contribute to wearable/portable smart detection electronics.

show abstract

“…In Figure 1c, the sharp and intense peak in P-XRD confirmed the monoclinic crystal system with space group P21/c. For Zn-MOF-8@Ag composite (Figure 1d), the P-XRD pattern was comparable to that of Zn-MOF-8 crystal except for strong peaks observed at 38° and 44° and 60° which corresponds to the (111), (200) and (108) planes of silver QDs particles [39][40][41]. To investigate the thermal stability of the nanostructure metal complex and its composite, thermal gravimetric analysis (TGA) was performed in the temperature range from 25-1000 °C under nitrogen atmosphere ( Figure 2).…”

Section: Characterization Of Zn-mof-8@agqds Compositementioning

confidence: 77%

Construction of Silver Quantum Dot Immobilized Zn-MOF-8 Composite for Electrochemical Sensing of 2,4-Dinitrotoluene

et al. 2019

View full text Add to dashboard Cite

In the present study, we report a highly effective electrochemical sensor for detecting 2,4-dinitrotoluene (2,4-DNT). The amperometric determination of 2,4-DNT was carried out using a gold electrode modified with zinc–metal organic framework-8 and silver quantum dot (Zn-MOF-8@AgQDs) composite. The synthesized nanomaterials were characterized by using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD). The synthesized nanocomposite proved to be efficient in electro-catalysis thereby reducing the 2,4-DNT. The unique combination present in Zn-MOF-8@AgQDs composite offered an excellent conductivity and large surface area enabling the fabrication of a highly sensitive (−0.238 µA µM−1 cm−2), selective, rapid and stable 2,4-DNT sensor. The dynamic linear range and limit of detection (LOD) was about 0.0002 µM to 0.9 µM and 0.041 µM, respectively. A 2,4-DNT reduction was also observed during the linear sweep voltammetry (LSV) experiments with reduction peaks at −0.49 V and −0.68 V. This is an unprecedented report with metal organic framework (MOF) composite for sensing 2,4-DNT. In addition, the presence of other species such as thiourea, urea, ammonia, glucose, and ascorbic acid displayed no interference in the modified electrode suggesting its practicability in various environmental applications.

show abstract

Silver nanoparticles built-in zinc metal organic framework modified electrode for the selective non-enzymatic determination of H2O2

Cited by 60 publications

References 42 publications

Ultrafine Silver Nanoparticles Embedded in Cyclodextrin Metal‐Organic Frameworks with GRGDS Functionalization to Promote Antibacterial and Wound Healing Application

Ultrafine Silver Nanoparticles Embedded in Cyclodextrin Metal‐Organic Frameworks with GRGDS Functionalization to Promote Antibacterial and Wound Healing Application

Free‐Standing 3D Electrodes for Electrochemical Detection of Hydrogen Peroxide

Construction of Silver Quantum Dot Immobilized Zn-MOF-8 Composite for Electrochemical Sensing of 2,4-Dinitrotoluene

Contact Info

Product

Resources

About