منابع مشابه
Routes to greener plastics
How to hide a dimension from view Compacted dimensions are essential ingredients of advanced string theories; the extra dimensions used to describe the world are hidden from view, or compacted. Pendry et al. used concepts of transformation optics, in which metamaterials are designed to produce specific optical properties, to show theoretically that compacted dimensions could be possible in plas...
متن کاملBiodegradable and compostable alternatives to conventional plastics.
Packaging waste forms a significant part of municipal solid waste and has caused increasing environmental concerns, resulting in a strengthening of various regulations aimed at reducing the amounts generated. Among other materials, a wide range of oil-based polymers is currently used in packaging applications. These are virtually all non-biodegradable, and some are difficult to recycle or reuse...
متن کامل3 , 4 = Dioxygenase III
In the early stage of the reaction of protocatechuate 3,4dioxygenase, a new spectral species of the enzyme having a broad absorption band with a maximum between 500 and 520 nm was observed by using a stopped flow technique. The observed spectrum was distinct from those of the enzyme or the enzyme-protoacatechuic acid complex and its formation was absolutely dependent on the simultaneous presenc...
متن کاملPotential for plastics to transport hydrophobic contaminants.
Plastic debris litters marine and terrestrial habitats worldwide. It is ingested by numerous species of animals, causing deleterious physical effects. High concentrations of hydrophobic organic contaminants have also been measured on plastic debris collected from the environment, but the fate of these contaminants is poorly understood. Here, we examine the uptake and subsequent release of phena...
متن کامل4'-Octyloxybiphenyl-4-carbonitrile polymorph III.
The title compound, C21H25NO, is a member of a well known family of liquid crystals (4-oxy-4'-cyanobiphenyls, OCBs) and packs in lamellar-type bilayers in the solid state, through CN...H hydrogen bonds. This packing type is analogous to that found of other members of the n-OCB homologous series, viz. 7-OCB and 9-OCB.
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 2010
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.76.961