F408

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Functionalized N-doped graphene quantum dots for electrochemical determination of cholesterol through host-guest inclusion.

Akhilesh Babu Ganganboina et al.

Mikrochimica acta, 185(11), 526-526 (2018-11-01)

Functionalized nitrogen-doped graphene quantum dots (N-GQD) with mean particle size of 8.5 ± 0.5 nm were covalently linked to β-cyclodextrin (β-CD) to form a β-CD@N-GQD nanoprobe. The probe is shown to enable voltammetric determination of cholesterol via selective host-guest recognition and by using

Hydrogen bond configuration and protonation of ground and lowest excited triplet states of 4‑amino‑4'‑nitrobiphenyl based on nanosecond transient absorption spectroscopy.

Peipei Jin et al.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 217, 44-50 (2019-03-31)

Intramolecular charge transfer (ICT) is an important photochemical process. In contrast to those in singlet manifold, triplet ICT states were less studied. In this paper, the lowest excited triplet state (T1) of 4‑amino‑4'‑nitrobiphenyl (NH2-Bp-NO2) was recorded with nanosecond transient absorption

Disposable Amperometric Immunosensor for Hepatitis B Antigen Detection Based on Multiwalled Carbon Nanotubes and Ferrocene Decorated Screen Printed Electrode.

Zhencheng Chen et al.

Journal of biomedical nanotechnology, 15(5), 930-938 (2019-03-21)

In this work, we report an amperometric immunosensor for detecting Hepatitis B surface antigen based on ChitosanFerrocene-Ammoniated multiwalled carbon nanotubes (CS-Fc-AMWNTs). The CS-Fc-AMWNTs nanocomposites were produced by Schiff base reaction, providing not only large specific surface area, but also favorable

Temperature-independent catalytic two-electron reduction of dioxygen by ferrocenes with a copper(II) tris[2-(2-pyridyl)ethyl]amine catalyst in the presence of perchloric acid.

Dipanwita Das et al.

Journal of the American Chemical Society, 135(7), 2825-2834 (2013-02-12)

Selective two-electron plus two-proton (2e(-)/2H(+)) reduction of O(2) to hydrogen peroxide by ferrocene (Fc) or 1,1'-dimethylferrocene (Me(2)Fc) in the presence of perchloric acid is catalyzed efficiently by a mononuclear copper(II) complex, [Cu(II)(tepa)](2+) (1; tepa = tris[2-(2-pyridyl)ethyl]amine) in acetone. The E(1/2)

A double signal amplification platform for ultrasensitive and simultaneous detection of ascorbic acid, dopamine, uric acid and acetaminophen based on a nanocomposite of ferrocene thiolate stabilized Fe₃O₄@Au nanoparticles with graphene sheet.

Meiling Liu et al.

Biosensors & bioelectronics, 48, 75-81 (2013-05-09)

A double signal amplification platform for ultrasensitive and simultaneous detection of ascorbic acid (AA), dopamine (DA), uric acid (UA) and acetaminophen (AC) was fabricated by a nanocomposite of ferrocene thiolate stabilized Fe₃O₄@Au nanoparticles with graphene sheet. The platform was constructed

A novel one-step synthesis for carbon-based nanomaterials from polyethylene terephthalate (PET) bottles waste.

Noha A El Essawy et al.

Journal of the Air & Waste Management Association (1995), 67(3), 358-370 (2016-10-05)

Nowadays our planet suffers from an accumulation of plastic products that have the potential to cause great harm to the environment in the form of air, water, and land pollution. Plastic water bottles have become a great problem in the

Low-cost industrially available molybdenum boride and carbide as "platinum-like" catalysts for the hydrogen evolution reaction in biphasic liquid systems.

Micheál D Scanlon et al.

Physical chemistry chemical physics : PCCP, 15(8), 2847-2857 (2013-01-23)

Rarely reported low-cost molybdenum boride and carbide microparticles, both of which are available in abundant quantities due to their widespread use in industry, adsorb at aqueous acid-1,2-dichloroethane interfaces and efficiently catalyse the hydrogen evolution reaction in the presence of the

Influence of Thermal Treatments on the Evolution of Conductive Paths in Carbon Nanotube-Al

Benhui Fan et al.

Langmuir : the ACS journal of surfaces and colloids, 33(38), 9680-9686 (2016-12-10)

The conductive path formed by carbon nanotubes (CNTs) in a polymer matrix is one of the most attractive topics for developing multifunctional nanocomposites. In this article, we studied the evolution of conductive paths and interactions in the interfacial regions in

Polymeric Carbon Nitride Armored Centimeter-Wide Organic Droplets in Water for All-Liquid Heterophase Emission Technology.

Qian Cao et al.

Polymers, 12(8) (2020-07-28)

High potential of emission chemistry has been visualized in many fields, from sensors and imaging to displays. In general, conjugated polymers are the top rankers for such chemistry, despite the fact that they bring solubility problems, high expenses, toxicity and

Designing Janus Ligand Shells on PbS Quantum Dots using Ligand-Ligand Cooperativity.

Noah D Bronstein et al.

ACS nano, 13(4), 3839-3846 (2019-03-12)

We present a combined experimental and theoretical study of ligand-ligand cooperativity during X-type carboxylate-to-carboxylate ligand exchange reactions on PbS quantum dot surfaces. We find that the ligand dipole moment (varied through changing the substituents on the benzene ring of cinnamic

Spin-state energetics of metallocenes: How do best wave function and density functional theory results compare with the experimental data?

Gabriela Drabik et al.

Physical chemistry chemical physics : PCCP, 23(1), 151-172 (2020-12-15)

We benchmark the accuracy of quantum-chemical methods, including wave function theory methods [coupled cluster theory at the CCSD(T) level, multiconfigurational perturbation-theory (CASPT2, NEVPT2) and internally contracted multireference configuration interaction (MRCI)] and 30 density functional theory (DFT) approximations, in reproducing the

Portable electrochemical system using screen-printed electrodes for monitoring corrosion inhibitors.

André L Squissato et al.

Talanta, 174, 420-427 (2017-07-26)

This work presents a portable electrochemical system for the continuous monitoring of corrosion inhibitors in a wide range of matrices including ethanol, seawater and mineral oil following simple dilution of the samples. Proof-of-concept is demonstrated for the sensing of 2,5-dimercapto-1,3,5-thiadiazole

Reversible and oriented immobilization of ferrocene-modified proteins.

Lanti Yang et al.

Journal of the American Chemical Society, 134(46), 19199-19206 (2012-11-07)

Adopting supramolecular chemistry for immobilization of proteins is an attractive strategy that entails reversibility and responsiveness to stimuli. The reversible and oriented immobilization and micropatterning of ferrocene-tagged yellow fluorescent proteins (Fc-YFPs) onto β-cyclodextrin (βCD) molecular printboards was characterized using surface

N- and O-Doped Carbon Dots for Rapid and High-Throughput Dual Detection of Trace Amounts of Iron in Water and Organic Phases.

Yuan He et al.

Journal of fluorescence, 29(1), 137-144 (2018-11-09)

In this work, we report a dual use of highly fluorescent N- and O-doped carbon dots (CDs) for rapid and high-throughput trace analysis of iron in water and organic phases. The CDs are rapidly synthesized in a sealed vessel via

Ferrocene-based anilides: synthesis, structural characterization and inhibition of butyrylcholinesterase.

Ataf Ali Altaf et al.

Dalton transactions (Cambridge, England : 2003), 47(34), 11769-11781 (2018-08-18)

Twenty-three compounds in two series of ferrocene-based anilides, with the general formula C5H5-Fe-C5H4-C6H4-NH-CO-C6H4-R (where R = H, F, Cl, CH3 and OCH3), have been successfully synthesized. The compounds were characterized by elemental analysis and FTIR, 1H NMR and 13C NMR

Enzyme and Mediator-coadsorbed Carbon Felt Electrode for Electrochemical Detection of Glucose Covered with Polymer Layers Based on Layer-by-Layer Technique.

Soichi Yabuki et al.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 31(7), 693-697 (2015-07-15)

Glucose dehydrogenase (GlDH) and ferrocene were coadsorbed on a carbon felt (CF) sheet (5 × 10 mm, 2 mm thickness), which was used to construct an electrode for the electrochemical detection of glucose. A potential of +0.3 V vs. Ag/AgCl

Bioorganometallic chemistry of ferrocene.

Dave R van Staveren et al.

Chemical reviews, 104(12), 5931-5985 (2004-12-09)

Interfacial Redox Catalysis on Gold Nanofilms at Soft Interfaces.

Evgeny Smirnov et al.

ACS nano, 9(6), 6565-6575 (2015-06-04)

Soft or "liquid-liquid" interfaces were functionalized by roughly half a monolayer of mirror-like nanofilms of gold nanoparticles using a precise interfacial microinjection method. The surface coverage of the nanofilm was characterized by ion transfer voltammetry. These gold nanoparticle films represent

Redox behavior and biological properties of ferrocene bearing porphyrins.

Rainer Lippert et al.

Journal of inorganic biochemistry, 171, 76-89 (2017-04-04)

In order to improve antimicrobial effects of previously studied meso-tetrakis(4-ferrocenylphenyl)porphyrin 1, we have modified its structure by replacing two trans-positioned ferrocenylphenyl moieties with methoxy methylene substituted tert-butylphenyl moieties. Newly synthesized 5

Study the effect of various wash-coated metal oxides over synthesized carbon nanofibers coated monolith substrates.

Mohamad Rasool Malekbala et al.

PloS one, 14(7), e0219936-e0219936 (2019-08-01)

In this research work, carbon nanofibers (CNFs) were synthesized on honeycomb monolith substrates using injection chemical vapor deposition (ICVD) technique. The effect of various wash-coated materials and catalyst promoter on the growth rate of CNFs on monolith substrates were examined.

Trap-Door-Like Irreversible Photoinduced Charge Transfer in a Donor-Acceptor Complex.

Carlos R Medrano et al.

The journal of physical chemistry letters, 9(12), 3517-3524 (2018-06-12)

For efficient conversion of light into useful energy sources, it is very important to study and describe the first steps of primary charge-transfer process in natural structures and artificial devices. The time scale of these processes in artificial photosynthetic and

Hierarchical Fe3O4@carbon@MnO2 hybrid for electromagnetic wave absorber.

Xingliang Chen et al.

Journal of colloid and interface science, 553, 465-474 (2019-06-24)

In this work, a novel Fe3O4@C@MnO2 hybrid was successfully synthesized via facile method. The morphology, structure, chemical composition, magnetic behavior and EM wave absorbing performance of the hybrid were systematically investigated. Results indicate that the hybrid possesses uniform hierarchical and

Insulating Carbon Nanotubes by Atomic Layer Deposition for Electrical Wiring Purposes.

J M Romo-Herrera et al.

Journal of nanoscience and nanotechnology, 15(9), 6774-6778 (2015-12-31)

Carbon Nanotubes (CNTs) are coated by an insulator (Al2O3) shell using the atomic layer deposition (ALD) technique. This is achieved in large quantities (tens of milligrams per batch) for electrical wiring purposes. Here we present a transmission electron microscopy (TEM)

Boronic Acid vs. Folic Acid: A Comparison of the bio-recognition performances by Impedimetric Cytosensors based on Ferrocene cored dendrimer.

Muamer Dervisevic et al.

Biosensors & bioelectronics, 91, 680-686 (2017-01-24)

A comparative study is reported where folic acid (FA) and boronic acid (BA) based cytosensors and their analytical performances in cancer cell detection were analyzed by using electrochemical impedance spectroscopy (EIS) method. Cytosensors were fabricated using self-assembled monolayer principle by

PAH/PAH(CF3 )n Donor/Acceptor Charge-Transfer Complexes in Solution and in Solid-State Co-Crystals.

Karlee P Castro et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 25(59), 13547-13565 (2019-08-06)

A solution, solid-state, and computational study is reported of polycyclic aromatic hydrocarbon PAH/PAH(CF3 )n donor/acceptor (D/A) charge-transfer complexes that involve six PAH(CF3 )n acceptors with known gas-phase electron affinities that range from 2.11(2) to 2.805(15) eV and four PAH donors, including

n-Type PbSe Quantum Dots via Post-Synthetic Indium Doping.

Haipeng Lu et al.

Journal of the American Chemical Society, 140(42), 13753-13763 (2018-09-27)

We developed a postsynthetic treatment to produce impurity n-type doped PbSe QDs with In3+ as the substitutional dopant. Increasing the incorporated In content is accompanied by a gradual bleaching of the interband first-exciton transition and concurrently the appearance of a

A novel probe density controllable electrochemiluminescence biosensor for ultra-sensitive detection of Hg2+ based on DNA hybridization optimization with gold nanoparticles array patterned self-assembly platform.

Wenhua Gao et al.

Biosensors & bioelectronics, 49, 139-145 (2013-06-05)

Biosensor based on DNA hybridization holds great potential to get higher sensitivity as the optimal DNA hybridization efficiency can be achieved by controlling the distribution and orientation of probe strands on the transducer surface. In this work, an innovative strategy

Full-surface emission of graphene-based vertical-type organic light-emitting transistors with high on/off contrast ratios and enhanced efficiencies.

Byoungchoo Park et al.

Scientific reports, 9(1), 6328-6328 (2019-04-21)

Surface-emitting organic light-emitting transistors (OLETs) could well be a core element in the next generation of active-matrix (AM) displays. We report some of the key characteristics of graphene-based vertical-type organic light-emitting transistors (Gr-VOLETs) composed of a single-layer graphene source and

Iron-based inorganic-organic hybrid and superlattice thin films by ALD/MLD.

A Tanskanen et al.

Dalton transactions (Cambridge, England : 2003), 44(44), 19194-19199 (2015-10-22)

Here we present novel layer-by-layer deposition processes for the fabrication of inorganic-organic hybrid thin films of the (-Fe-O-C6H4-O-)n type and also superlattices where thicker iron oxide layers alternate with monomolecular-thin organic layers. The processes are based on a combination of

Development of an Amperometric Glucose Biosensor Based on the Immobilization of Glucose Oxidase on the Se-MCM-41 Mesoporous Composite.

Sabriye Yusan et al.

Journal of analytical methods in chemistry, 2018, 2687341-2687341 (2018-06-05)

A new bioenzymatic glucose biosensor for selective and sensitive detection of glucose was developed by the immobilization of glucose oxidase (GOD) onto selenium nanoparticle-mesoporous silica composite (MCM-41) matrix and then prepared as a carbon paste electrode (CPE). Cyclic voltammetry was

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