Rats were studied after being given a single dose of 14C-pentaerythritol trinitrate by gavage. The labeled components of the blood, urine and gastrointestinal tract were identified by thin-layer chromatography and assayed quantitatively by radioscanning. Pentaerythritol trinitrate was found to b...

The absorption, biotransformation, and excretion of pentaerythritol tetranitrate was studied after oral administration of two dosages, 20 and 40 mg., to patients. The drug was given as 14C-pentaerythritol tetranitrate incorporated into tablets of a type used clinically. The total 14C excretion i...

Pentaerythritol tetranitrate is an organic nitrate ester that undergoes metabolization to pentaerythritol, pentaerythritol trinitrate, pentaerythritol dinitrate and pentaerythritol mononitrate. Recent data suggested that pentaerythritol tetranitrate is endowed with vasoprotective activities in e...

Pentaerythritol tetranitrate (PETN) is the nitrate ester of pentaerythritol, used as an energetic and filling material for military and civilian purposes and rarely for terrorist actions. As there is no reliable nano-colorimetric method for PETN assay, we developed an indirect method based on th...

Pentaerythritol tetranitrate (PETN) and its degradation products are analyzed to discriminate between residues originating from PETN explosions and residues obtained under other circumstances, such as natural degradation on textile, or after handling intact PETN. The degradation products observe...

A reliable, sensitive, and specific assay for isosorbide dinitrate, pentaerythritol tetranitrate, and erythrityl tetranitrate in sublingual, uncoated, sustained-release, and chewable dosage forms, using high-performance liquid chromatography, is described. The nitrate ester dosage forms were dis...

This study examined the role of denitrifying and sulfate-reducing bacteria in biodegradation of pentaerythritol tetranitrate (PETN). Microbial inocula were obtained from a PETN-contaminated soil. PETN degradation was evaluated using nitrate and/or sulfate as electron acceptors and acetate as a c...

□ The assay of sustained-release tablets or capsules containing nitroglycerin, isosorbide dinitrate, or pentaerythritol tetranitrate by high-performance liquid chromatography is described. Acetonitrile was found to be the sample preparation solvent with the most general applicability to these p...

After an explosion of pentaerythritol tetranitrate (PETN), its degradation products pentaerythritol trinitrate (PETriN), dinitrate (PEDiN) and mononitrate (PEMN) were detected using liquid chromatography–atmospheric-pressure chemical-ionization–mass spectrometry (LC–APCI–MS). Discrimination ...

Under non-isothermal condition, the thermal behavior of pentaerythritol diazido dinitrate (PDADN) is studied using TG, DSC, pressure DSC and the simultaneous device of the solid reaction cell in situ/rapid scanning Fourier transform infrared (RSFT-IR) spectroscopy. The results show that (1) the ...

Four 1,3-oxazolidine based ligands (H2L1−H2L4) were synthesized in solvent-free condition from the reaction of amino alcohols (2-amino-2-(hydroxymethyl)-1,3-propanediol or 2-amino-2-ethyl-1,3-propanediol) and 2-acetylpyridine or 2-pyridinecarboxaldehyde at 110 °C. Four new dinuclear Fe(III) com...

The complete vibrational assignment and analysis of the fundamental modes of 2-bromo-5-nitrothiazole (BNT) was carried out using the experimental FTIR and FT-Raman data and quantum chemical studies. The observed vibrational data were compared with the wavenumbers derived theoretically for the op...

In this current study, the new aminopyrene based cyclotriphosphazene chemosensors 6 and 7 have been successfully synthesized. The identity of all the synthesized cyclotriphosphazene compounds was proven by 1H, 31P NMR and MALDI-TOF mass spectrometry. The photophysical and metal sensing propertie...

A novel technique of covalent immobilization of indicator dyes for the preparation of optical sensors is investigated. Au nanoparticles are used as bridges and carriers for anchoring indicator dyes on the surfaces of quartz glass slides (the substrates). 1-Aminopyrene was covalently attached to ...

Acidic functional groups produced on the surface of acid-treated carbon nanofibers (CNFs) were characterized by fluorescence measurements using 1-aminopyrene (1-AP) as an in situ probe molecule. The 1-AP molecules only slightly interacted with the untreated CNF surface, whereas the 1-AP cation-l...

Platinum–ruthenium/carbon composite nanofibers were prepared by depositing PtRu nanoparticles directly onto electrospun carbon nanofibers using a polyol processing technique. The morphology and size of PtRu nanoparticles were controlled by 1-aminopyrene functionalization. The noncovalent functi...

N-Acetyl and N-triazinyl 1- and 2-aminopyrenes were prepared and their absorption and fluorescence spectra as well as fluorescence quantum yield (qFl) in different solvents were measured. The dependence of fluorescence quantum yield on both structure and solvent polarity is discussed. The photop...

Morphologically interesting microstructures of 1-aminopyrene (1-PyNH2) are synthesized using re-precipitation method. Two and three dimensional microparticles are obtained in presence of cetyl trimethyl ammonium bromide (CTAB) as morphology directing agent. One dimensional wire shaped microparti...

Metabolites of polycyclic aromatic hydrocarbons measured in human samples are often used as biomarkers of exposure to diesel engine exhaust (DEE). The aim of this study was to assess the changes in urinary levels of 1-aminopyrene (1-AP) and 1-hydroxypyrene (1-OHP) and their relationship with Ele...

Electrochemically active organic materials are one of the best choices for replacing metal-based electrode materials in energy storage devices for their advantages of low cost, high capacitance, high safety performance and abundant reserves. In this paper, 1-aminopyrene and reduced graphene oxid...