Inexpensive, less-toxic ZnCl2 serves as the catalyst for selective cross-coupling of enynones and diazo compounds, an unprecedented reaction pathway for zinc carbenoids. A cascade sequence comprising formal cyclization/cross-coupling leads to a variety of 2-alkenylfurans.

The development of stable nanoparticles that can withstand the changing conditions experienced in a biological setting and also be of low toxicity and immunogenicity is of particular importance to address the problems associated with currently utilized nanotechnology-based therapeutics and diagnostics. The use of crosslinked nanoparticles continues to receive special impetus, due to their robus...

bachground: toxic plants are an important reason for poisoning. the responsible plants are variable in different geographic spots. some areas such as lorestan province have more variety in herbal plants because of geographic condition. because of high poisoning incidence with toxic plants and mushroom, we assessed the incidence of poisoning with mushroom and toxic plants (tattore and ricinus co...

Puzzling situation of acetaminophen toxicity in a referral hospital, Tehran, Iran Acetaminophen carries a higher risk of overdose. A puzzling situation of acetaminophen toxicity was encouraging enough to explore the epidemiologic situation of acetaminophen toxicity and its outcomes among patients acquired poisoning. This cross-sectional study retrospectively reviewed the medical r...

The crystalline cyclic oligosaccharide γ-cyclodextrin (γCD) is a natural, non-toxic and biodegradable precursor that can be used to prepare innovative polymers. We cross-linked γCD with variable quantities of polyethylene glycol diglycidyl ether (PEGDGE) in aqueous NaOH form 3D structures tunable physicochemical properties. Mixtures 5 : 1 PEGDGE:γCD molar ratio produced material was soluble wat...

BACKGROUND Future European Community regulations will require a sensitive and specific assay for measurement of coeliac toxic gluten proteins in foods marketed as gluten-free. To avoid spurious cross reactions with non-toxic proteins, specific antibodies and target antigens are required. A synthetic 19 amino acid peptide of A gliadin has been shown to cause deterioration in the morphology of sm...

INTRODUCTION A number of previous studies examined a possible association of toxic metals and autism, and over half of those studies suggest that toxic metal levels are different in individuals with Autism Spectrum Disorders (ASD). Additionally, several studies found that those levels correlate with the severity of ASD. METHODS In order to further investigate these points, this paper performs...

This paper reports a new method of cross-linking electrospun zein fibers using citric acid as a non-toxic cross-linker to enhance the water stability and cytocompatibility of zein fibers for tissue engineering and other medical applications. The electrospun structure has many advantages over other types of structures and protein-based biomaterials possess unique properties preferred for tissue ...

background: due to the increasing pollution of water resources, this study was carried out for evaluation of water quality pollution indices for monitoring of heavy metals (as, zn, pb and cu) contamination in ghahavand plain, hamadan province, western iran during spring and summer 2012. methods: totally, 20 ground water wells were chosen randomly. the samples were filtered (0.45 μm) and maintai...

Bachground: Toxic plants are an important reason for poisoning. The responsible plants are variable in different geographic spots. Some areas such as Lorestan province have more variety in herbal plants because of geographic condition. Because of high poisoning incidence with toxic plants and mushroom, we assessed the incidence of poisoning with mushroom and toxic plants (Tattore and Ricinus ...