The Role of Nanomaterials in Analytical Chemistry: Trace Metal Analysis

Calle, Inmaculada de la; Romero-Rivas, Vanesa

doi:10.1016/b978-0-08-101971-9.00010-7

Cited by 10 publications

(5 citation statements)

References 182 publications

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“…CDs show some interesting properties such as high aqueous stability, facile functionalization, and an elevated photostability. They also have strong fluorescence, which make these materials valuable in optical devices. − …”

Section: Solar–thermal Fuel and Carbon Nanomaterialsmentioning

confidence: 99%

Solar–Thermal Fuels and the Role of Carbon Nanomaterials: A Perspective with Emphasis on the Azobenzene System

et al. 2023

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Molecular switches have long been investigated aiming at developing sustainable and renewable energy-based technologies. Among molecular photoswitches, azobenzene (AB) has been the quintessential template for solar−thermal fuels (STFs), acting as "molecular batteries", storing and discharging energy by converting between its trans-and cis-isomers upon absorption of UV light. Nevertheless, key properties for device performance such as stored energy, energy density, stability of the "charged" metastable isomer, or the control of energy release are highly influenced by a mediating interface. This has motivated the study of metal and carbon nanomaterials as templates in hybrid STFs. The latter have been shown to be especially promising owing to their unique electronic properties, topological tailoring, and abundant sourcing. This review discusses recent advances that explore enhancements on several molecular photoswitch systems, with a special emphasis on the AB system, associated with changes in the molecular substituents and the development of hybrid systems, involving mainly carbon nanotemplates, such as reduced graphene oxide, graphene, carbon nanotubes, and fullerenes. The energy density, τ 1/2 , grafting density, and charge transfer of the AB and the hybrid adsorbed AB system on carbon nanomaterials are discussed. Key facets of the design of hybrid STF devices are discussed, along with a perspective on the aspects that merit further investigation toward the development of efficient STFs.

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Section: Solar–thermal Fuel and Carbon Nanomaterialsmentioning

confidence: 99%

Solar–Thermal Fuels and the Role of Carbon Nanomaterials: A Perspective with Emphasis on the Azobenzene System

et al. 2023

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“…Metallic IEMs are typically functionalized by noble metals and other transition metals . Of these, noble metal NPs (e.g., Ag, Pd, Pt, and Au), ,− demonstrate high electrical conductivity, vibrant catalytic activity, long durability, and low cytotoxicity, making them well-suited for IEM applications. − Among noble metallic IEMs, we exemplify Ag-IEMs and Pd-IEMs for electro-filtration in the following sections. Ag-IEMs have demonstrated enhanced sterilization efficacy and prolonged catalyst service life. ,, On the other hand, Pd NPs loaded on the cathodic IEMs could promote the production of H* with low reduction potential, , allowing IEMs to be applied in hydrogenolysis processes, such as hydrodeoxygenation and hydrodehalogenation. , …”

Section: Metallic Iemsmentioning

confidence: 99%

Inorganic Electrified Membrane: From Basic Science to Performance Translation

et al. 2023

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Decentralized water systems necessitate intensified, robust, and modular water treatment technologies for enhanced efficacy and resilience of the water purification process. Inorganic electrified membranes (IEMs) are gaining momentum in decentralized water systems by combining the versatility of electro-filtration processes with the favorable properties of inorganic materials, namely, strong mechanical strength, chemical stability, and hydrophilicity. This review quantitatively assesses three mainstream IEMs (i.e., Ti4O7, carbon, and metallic IEMs) from a fundamental perspective of the intrinsic electrochemical properties of the IEM materials and their translation into the IEM performances. We specifically (i) analyze the •OH production selectivity by Ti4O7 IEMs based on electrochemical thermodynamics and material science; (ii) differentiate degradation mechanisms of carbon IEMs in the context of various water matrices and propose strategies to address major concerns of avoiding membrane passivation and improving Faradaic efficiency of carbon IEMs; and (iii) highlight metallic IEMs doped with Ag or Pd, i.e., elucidate the combined sterilization mechanism by Ag-IEM via Ag+ dissolution and electro-phenomena, and unravel the unique hydrogenolysis ability of Pd-IEM for hydrodeoxygenation and persulfate electro-activation. We conclude by identifying the remaining obstacles of IEMs and present possible interdisciplinary approaches for IEM optimization.

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“…They can be produced through different processes mainly divided into two categories: the top-down approach that consists of thinning a semi-conductor to achieve nanometer-sized particles and the bottom-up method where the self-assembly of QDs is promoted through nucleation or atom-by-atom layering [ 15 ]. QD cores and/or shells are typically made of elements from the groups II–VI: CdSe, CdS, CdTe, ZnSe, ZnS, ZnTe, HgS, HgSe, HgTe, and ZnO [ 16 ]. However, other elements such as carbon, graphene, and molybdenum oxide have been gaining more attention.…”

Section: Quantum Dots-based Optical Biosensor For Circulating Cancmentioning

confidence: 99%

Recent Advancements in Nanoparticle-Based Optical Biosensors for Circulating Cancer Biomarkers

2021

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The effectiveness of cancer treatment strongly depends on the early detection of the disease. Currently, the most common diagnostic method, tissue biopsy, takes time and can be damaging to the patient. Circulating cancer biomarkers such as circulating tumor DNA, micro-RNA (miRNA), tumor proteins, exosomes, and circulating tumor cells have repeatedly demonstrated their viability as targets for minimally invasive cancer detection through liquid biopsies. However, among other things, achieving a great sensitivity of detection is still challenging due to the very low concentration of biomarkers in fluid samples. This review will discuss how the recent advances in nanoparticle-based biosensors are overcoming these practical difficulties. This report will be focusing mainly on optical transduction mechanisms of metal nanoparticles (M-NPs), quantum dots (QDs), and upconversion nanoparticles (UCNPs).

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The Role of Nanomaterials in Analytical Chemistry: Trace Metal Analysis

Cited by 10 publications

References 182 publications

Solar–Thermal Fuels and the Role of Carbon Nanomaterials: A Perspective with Emphasis on the Azobenzene System

Solar–Thermal Fuels and the Role of Carbon Nanomaterials: A Perspective with Emphasis on the Azobenzene System

Inorganic Electrified Membrane: From Basic Science to Performance Translation

Recent Advancements in Nanoparticle-Based Optical Biosensors for Circulating Cancer Biomarkers

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