Category: 16961-25-4

Sangkheaw, Ponkarnan; Therdthianwong, Supaporn; Therdthianwong, Apichai; Wongyao, Nutthapon; Yongprapat, Sarayut published an article about the compound: Hydrogen tetrachloroaurate(III) trihydrate( cas:16961-25-4,SMILESS:Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+] ).Formula: AuCl4H7O3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:16961-25-4) through the article.

An alk.-acid direct glycerol fuel cell (AA-DGFC) was proposed for a portable power generating device that requires high power d. A good design of cell components and optimum cell operating conditions are the key factors to yield high performance of fuel cells. In this work, AA-DGFC with Pt/C anode catalyst showed outstanding performance with open-circuit voltage as high as 1.72V and the peak power d. of 330 mWcm-2 which is about 2.7 times higher than the performance of a typical anion exchange membrane direct glycerol fuel cell (AEDGFC). The operating conditions providing the best performance were at glycerol to NaOH mole ratio of 1:5, 1.0M glycerol concentration, an anolyte volumetric flow rate of 1mLmin-1 and cell temperature of 80°C. For the design of the cell component, the optimum Nafion ionomer content in the anode microporous layer was 20 wt%. Among the Au-based catalysts at the anode studied Au/C, Au-Ni/C and Au-Ag/C, the Au-Ni/C outperformed the others with the power d. of 142 mWcm-2.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Hydrogen tetrachloroaurate(III) trihydrate( cas:16961-25-4 ) is researched.Related Products of 16961-25-4.Guo, Jiacen; Kim, Ji-Young; Zhang, Mingliang; Wang, Haonan; Stein, Aaron; Murray, Christopher B.; Kotov, Nicholas A.; Kagan, Cherie R. published the article 《Chemo- and Thermomechanically Configurable 3D Optical Metamaterials Constructed from Colloidal Nanocrystal Assemblies》 about this compound( cas:16961-25-4 ) in ACS Nano. Keywords: optical 3D metamaterials constructed colloidal nanocrystal assembly; metamaterials ultrathin lens polarizer waveplates; 3D nanofabrication; broadband circular polarizer; chiral metamaterials; circular dichroism (CD); nanocrystal assembly; nanoimprint; plasmonics. Let’s learn more about this compound (cas:16961-25-4).

Nanofabrication has limited most optical metamaterials to 2D or, often with multiple patterning steps, simple 3D meta-atoms that typically have limited built-in tunability. Here, with a one-step scalable patterning process, we exploit the chem. addressability and structural adaptability of colloidal Au nanocrystal assemblies to transform 2D nanocrystal/Ti bilayers into complex, 3D-structured meta-atoms and to thermally direct their shape morphing and alter their optical properties. By tailoring the length, number, and curvature of 3D helical structures in each meta-atom, we create large-area metamaterials with chiroptical responses of as high as ∼40% transmission difference between left-hand (LCP) and right-hand (RCP) circularly polarized light (ΔT = TRCP – TLCP) that are suitable for broadband circular polarizers and, upon thermally configuring their shape, switch the polarity of polarization rotation. These 3D optical metamaterials provide prototypes for low-cost, large-scale fabrication of optical metamaterials for ultrathin lenses, polarizers, and waveplates.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Formula: AuCl4H7O3. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Hydrogen tetrachloroaurate(III) trihydrate, is researched, Molecular AuCl4H7O3, CAS is 16961-25-4, about Plasmonic nucleotide hybridization chip for attomolar detection: localized gold and tagged core/shell nanomaterials. Author is Al Mubarak, Zainab H.; Premaratne, Gayan; Dharmaratne, Asantha; Mohammadparast, Farshid; Andiappan, Marimuthu; Krishnan, Sadagopan.

We report a large amplification of surface plasmon signals for a double hybridization microarray chip assembly that bridges localized gold and detection probe-carrying-core/shell Fe3O4@Au nanoparticles for detection of as low as 80 aM miRNA-155 marker in solution The plasmonic wavelength match of the gold shell with surface localized gold nanoparticles and the addnl. scattering band of the core/shell material in resonance with the incident 800 nm light source are the underlying factors for the observed remarkable analyte signal at ultra-low (10-18 order) concentrations

Although many compounds look similar to this compound(16961-25-4)Formula: AuCl4H7O3, numerous studies have shown that this compound(SMILES:Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthetic Route of AuCl4H7O3. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Hydrogen tetrachloroaurate(III) trihydrate, is researched, Molecular AuCl4H7O3, CAS is 16961-25-4, about Label-free detection of Staphylococcus aureus based on bacteria-imprinted polymer and turn-on fluorescence probes.

The effective identification and quant. determination of Staphylococcus aureus is a major public health concern. Here, an innovative strategy that combines a bacteria-imprinted polydimethylsiloxane film for bacterial recognition and fluorescence resonance energy transfer platform for turn-on fluorescence sensing is demonstrated. The bacteria-imprinted polydimethylsiloxane film was facilely fabricated to generate corresponding specific sites on the polydimethylsiloxane surface via stamp imprinting using Staphylococcus aureus as template followed by modification with 1H,1H,2H,2H-perfluorooctyltriethoxysilane. The fluorescence resonance energy transfer platform was developed through electrostatic interaction between citrate-functional copper clusters and dopamine-stabilized gold nanoparticles. When the Staphylococcus aureus are present, the 1H,1H,2H,2H-perfluorooctyltriethoxysilane-modified bacteria-imprinted polydimethylsiloxane film can precisely capture the target; subsequently, the neg. charged bacteria compete with citrate-functional copper clusters and bind to dopamine-stabilized gold nanoparticles, leading to the fluorescence recovery of citrate-functional copper clusters. The entire detection process was achieved within 135 min, showing a wide linear calibration response from 10 to 1 × 107 cfu mL-1 with a low detection limit of 11.12 cfu mL-1. Furthermore, the recoveries from spiked samples were from 97.7 to 101.90% with relative standard derivations lower than 10%. The established label-free assay of measuring Staphylococcus aureus is rapid, sensitive, specific, and efficient.

Although many compounds look similar to this compound(16961-25-4)Synthetic Route of AuCl4H7O3, numerous studies have shown that this compound(SMILES:Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: 16961-25-4. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Hydrogen tetrachloroaurate(III) trihydrate, is researched, Molecular AuCl4H7O3, CAS is 16961-25-4, about Graphite/gold nanoparticles electrode for direct protein attachment: characterization and gas sensing application.

In this work, graphite/gold nanoparticles (G/AuNPs) were synthesized through a facile chem. method, and its potential application for direct protein attachment for electrochem. detection of carbon monoxide (CO) was investigated. The preparation of G/AuNPs electrodes was optimized by synthesizing the nanoparticles in different concentration of HAuCl4·3H2O at various temperatures The G/AuNPs electrode was subsequently modified by four types of mercaptopropionic acid, including 1-mercaptopropionic, 3-mercaptopropionic, 6-mercaptopropionic, and 11-mercaptopropionic acid, to achieve the best structure for protein attachment. Visible absorption and electrochem. studies showed that 3-mercaptopropionic acid possesses the best performance regarding the elec. conductivity between electrode and protein redox center. The cyclic voltammetry results revealed that the modified electrode has an appropriate performance for CO detection at very low concentrations while keeping a linear response. The limit of detection for the modified electrode was calculated to be about 0.2 ppb. Finally, the interactions of cytochrome C and carbon monoxides were simulated using mol. dynamics (MD), and the effect of protein conformation changes on the electrochem. signal was thoroughly examined The simulation results suggested that the proposed electrochem. sensor has an acceptable performance for the detection of CO due to less fluctuation of amino acids near the protein chain in the presence of CO mols.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Hydrogen tetrachloroaurate(III) trihydrate, is researched, Molecular AuCl4H7O3, CAS is 16961-25-4, about Synthesis and electrochemical study of CuAu nanodendrites for CO2 reduction, the main research direction is copper gold nanodendrite carbon dioxide reduction.Application In Synthesis of Hydrogen tetrachloroaurate(III) trihydrate.

The conversion of carbon dioxide (CO2) to carbon monoxide (CO) and other value-added products is an interesting approach for carbon-containing fuel synthesis using renewable and clean energy. The electrochem. reduction of CO2 is one of the promising strategies for the storage of intermittent renewable energy resources. The development of electrocatalysts with high activity and stability is vital in the electrochem. CO2 reduction process. In this study, copper and gold alloyed (CuAu) electrodes with nanodendritic structures were synthesized using a facile electrodeposition method. The CuAu nanodendrites with the at. ratio of Cu to Au being approx. 1:1 demonstrated excellent catalytic activity for the electrochem. reduction of CO2. Syngas, which is utilized as an intermediate in the production of synthetic natural gas, ammonia, and methanol, was the major product obtained under various applied potentials. Electrochem. impedance spectroscopic (EIS) measurements revealed that the CuAu nanodendrtic catalyst had a much lower charge transfer resistance than Cu and Au electrodeposited catalysts. The CuAu nanodendrite catalyst is an intriguing material with potential applications for syngas production from CO2.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Hazardous Materials called Porous zeolite imidazole framework-wrapped urchin-like Au-Ag nanocrystals for SERS detection of trace hexachlorocyclohexane pesticides via efficient enrichment, Author is Zhou, Xia; Liu, Guangqiang; Zhang, Hongwen; Li, Yue; Cai, Weiping, which mentions a compound: 16961-25-4, SMILESS is Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+], Molecular AuCl4H7O3, HPLC of Formula: 16961-25-4.

A core-shell configuration of the zeolite imidazole framework (ZIF-8) wrapped urchin-like Au-Ag alloyed nanocrystals (UAANs) were designed and fabricated via adding the pre-formed plasmonic nanoparticles into the ZIF-8 precursor solution with hexadecyltrimethyl ammonium bromide (CTAB). The UAANs are about 100 nm in size with high-d. tips. The ZIF-8 shell layer is nanoporous and can be controlled in thickness from 10 nm to 40 nm by the CTAB concentration Importantly, such ZIF-8 wrapped UAANs can be used as the highly efficient surface enhanced Raman scattering (SERS) substrates for detection of the trace hexachlorocyclohexane (HCH) mols. The ZIF-8 shell layer with an appropriate thickness (-∼20 nm) can evidently increase the SERS performance of the UAANs to the trace γ-HCH and α-HCH. Such wrapping-enhanced SERS effect significantly increases, by a power function, with the decreasing HCH concentration, especially in the concentration below 10-6 M, which is attributed to the ever-increasing enrichment effect to the HCH mols. The detection limit is down below 1.5 ppb. This work presents a highly efficient substrate for the SERS-based detection of the trace HCH, and also displays the potential application in the SERS detection of volatile small mols.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Hydrogen tetrachloroaurate(III) trihydrate(SMILESS: Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+],cas:16961-25-4) is researched.Name: Pentaerythrityltetrabromide. The article 《Raspberry-like small multicore gold nanostructures for efficient photothermal conversion in the first and second near-infrared windows》 in relation to this compound, is published in Chemical Communications (Cambridge, United Kingdom). Let’s take a look at the latest research on this compound (cas:16961-25-4).

Gold nanoraspberries were synthesized by a seed-mediated synthesis with polyethylene glycol-functionalized bisphosphonates. The original structure shifted the optical absorption to IR, revealing very efficient photothermal properties within the 2nd biol. transparency window and leading to cancer cell necrosis at moderate intracellular doses and low (safe) laser power.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Sudheeshkumar, Veeranmaril; Soong, Charles; Dogel, Stas; Scott, Robert W. J. published an article about the compound: Hydrogen tetrachloroaurate(III) trihydrate( cas:16961-25-4,SMILESS:Cl[Au-](Cl)(Cl)Cl.[H]O[H].[H]O[H].[H]O[H].[H+] ).Name: Hydrogen tetrachloroaurate(III) trihydrate. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:16961-25-4) through the article.

High-surface-area gold catalysts are promising catalysts for a number of selective oxidation and reduction reactions but typically suffer catalyst deactivation at higher temperatures The major reason for catalyst deactivation is sintering, which can be triggered via two mechanisms: particle migration and coalescence, and Ostwald ripening. Herein, a direct method to synthesize Au25 clusters stabilized with 3-mercaptopropyltrimethoxysilane (MPTS) ligands is discussed. The sintering of Au25(MPTS)18 clusters on mesoporous silica (SBA-15) is monitored by using an environmental in situ transmission electron microscopy (TEM) technique. Results show that agglomeration of smaller particles is accelerated by increased mobility of particles during heat treatment, while growth of immobile particles occurs via diffusion of at. species from smaller particles. The mobility of the Au clusters can be alleviated by fabricating overlayers of silica around the clusters. The resulting materials show tremendous sinter-resistance at temperatures up to 650 °C as shown by in situ TEM and extended X-ray absorption fine structure anal.

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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Dynamic metallization of spherical DNA via conformational transition into gold nanostructures with controlled sizes and shapes, published in 2021-07-15, which mentions a compound: 16961-25-4, mainly applied to gold nanostructure dynamic metalization conformational transition ionic strength; Au; Catalysis; Conformation transition; DNA template; Dynamic metallization; Surface-enhanced Raman spectroscopy, Computed Properties of AuCl4H7O3.

Despite the reversible condensation properties of DNA, DNA metalization during controlled conformational transitions has been rarely investigated. We perform dynamic metalization of spherically condensed DNA nanoparticles (DNA NPs) via a globule-to-coil transition. A pos. charged new Au3+ reagent is prepared via ligand-exchange of conventional complex Au3+ ions, which was used to synthesize spherically condensed DNA NPs simply based on the fundamental electrostatic and coordinative interactions between DNA and Au3+ ions. Interestingly, the size of the Au3+-condensed DNA NPs (Au3+-DNA NPs) and the type of reducing agents lead to the formation of different Au nanostructures with unprecedented morphologies (cracked NPs, bowl-shaped NPs, and small NPs), owing to the controlled conformational changes in the Au3+-DNA NPs during metalization. The condensed DNA NPs play significant roles for Au nanostructures as (1) the dynamic template for the synthesis, (2) the reservoir and supply of Au3+ for the growth, and (3) the surface stabilizer. The synthesized Au nanostructures are remarkably stable against high ionic strength and exhibit catalytic activities and excellent SERS properties. This is the first study on the morphol. control and concomitant dynamic metalization of spherically condensed DNA, proposing new synthetic routes for bioinorganic nanomaterials.

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Imidazole – Wikipedia,
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