This work presents a systematic investigation of the molecular level composition and the extent of aqueous photochemical processing in different types of secondary organic aerosol (SOA) from biogenic and anthropogenic precursors including α-pinene, β-pinene, β-myrcene, d-limonene, α-humulene, 1,3,5-trimethylbenzene, and guaiacol, oxidized by ozone (to simulate a remote atmosphere) or by OH in t...

Particulates and complex organic mixtures were sampled from the exhaust of a flame retention head residential oil burner combusting No. 2 fuel oil at three firing conditions: continuous at Bacharach Smoke No. 1, and cyclic (5 min on, 10 min off) at Smoke Nos. 1 and 5. The complex mixtures were recovered by successive Soxhlet extraction of filtered particulates and XAD-2 sorbent resin with methy...

A V-Shaped 4-amino-1,8-napthalimide derived tetracarboxylic acid linker (L; bis-[N-(1,3-benzenedicarboxylic acid)]-9,18-methano-1,8-naphthalimide-[b,f][1,5]diazocine) comprising the Tröger's base (TB) structural motif was rationally designed and synthesised to access a nitrogen-rich fluorescent supramolecular coordination polymer. By adopting the straight forward precipitation method, a new lum...

In rats and mice, 1-nitronaphthalene (1-NN) produces both lung and liver toxicity. Even though these toxicities have been reported, the metabolism and disposition of 1-NN have not been elucidated. Therefore, studies were performed to characterize its fate after i.p. and i.v. administration to male Sprague-Dawley rats. After i.p. administration of [C]1-NN (100 mg/kg; 60 mCi/kg), 84% of the dose ...

Gold was considered catalytically inactive until 1987, when Haruta and co-workers found that gold nanoclusters supported by metal oxides showed high activity toward CO oxidation even below room temperature. Since then, there has been intense interest in the use of Au nanoparticles (NPs) to catalyse a variety of reactions, including low temperature oxidation of CO, selective oxidation of alcohol...

The reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by NaBH4 is widely recognized as a trusted model reaction for assessing the catalytic properties of nanostructures. Nowhere has its significance been more consequential than in the demonstration of the exceptional catalytic activity of noble metal nanostructures, providing a precise and rapid evaluation of elemental, alloyed, core–sh...

In aqueous suspension, the affinity of many pesticides for smectites is influenced by the clay properties such as surface area, surface charge density and location, exchangeable cations, and hydration status of exchangeable cations in clay interlayers. The amount and the type of salts present in the aqueous phase influence clay quasicrystal structures and hydration status, which we hypothesize ...

The use of information technology and management has become a critical part of the drug discovery process. The rational design of new drug molecules involves input from various branches of science. In this context the information and management of bio and chemical information have become the integral part. In addition, it is of utmost importance to enrich potential libraries with those molecule...

The Chematur Engineering group of companies is presented, briefly describing the business areas within the group. Activities in the field of supercritical fluids are given. The range of equipment as well as applications for supercritical carbon dioxide and supercritical water oxidation are presented. The Chematur Engineering demonstration plant for SCWO is described in detail and results from s...