Results 211 to 220 of about 67,195 (266)
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Evaluating the Ready Biodegradability of Biodegradable Plastics
Environmental Toxicology and Chemistry, 2021Abstract Reducing the environmental burden and assessing the safety of plastics are huge global challenges. However, standard test data on the ready biodegradability of plastics are limited. We evaluated the ready biodegradability of 8 biodegradable plastics using Organisation for Economic Co-operation and Development (OECD) test ...
Ryosuke Nabeoka +4 more
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Biodegradability of Plastics [PDF]
International Journal of Molecular Sciences, 2009 Plastic is a broad name given to different polymers with high molecular weight, which can be degraded by various processes. However, considering their abundance in the environment and their specificity in attacking plastics, biodegradation of plastics by microorganisms and enzymes seems to be the most effective process.
Yutaka Tokiwa +2 more
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Biodegradability and biodegradation of poly(lactide)
Applied Microbiology and Biotechnology, 2006Poly(lactide) (PLA) has been developed and made commercially available in recent years. One of the major tasks to be taken before the widespread application of PLA is the fundamental understanding of its biodegradation mechanisms. This paper provides a short overview on the biodegradability and biodegradation of PLA.
Yutaka, Tokiwa +1 more
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Biodegradability and Biodegradation of Polyesters
Journal of Polymers and the Environment, 2007A variety of biodegradable plastics have been developed in order to obtain useful materials that do not cause harm to the environment. Among the biodegradable plastics, aliphatic polyesters such as: poly(3-hydroxybutyrate) (PHB), poly(e-caprolactone) (PCL), poly(butylene succinate) (PBS), and poly(l-lactide) (PLA) have become the focus of interest ...
Yutaka Tokiwa, Buenaventurada P. Calabia
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BIODEGRADATION OF TRIETHANOLAMINE
Environmental Toxicology and Chemistry, 1996Abstract Triethanolamine production in the United States exceeds 100,000 metric tons per year. Given this magnitude of production and widespread distribution to consumer product, specialty chemical, and agricultural chemical markets, an understanding of the environmental fate and lifetime of this chemical is warranted.
Robert J. West, Stanley J. Gonsior
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Biodegradation of oxo‐biodegradable polyethylene
Journal of Applied Polymer Science, 2008AbstractBiodegradation of polyethylene and oxo‐biodegradable polyethylene films was studied in this work. Abiotic oxidation, which is the first stage of oxo‐biodegradation, was carried out for a period corresponding to 4 years of thermo‐oxidation at composting temperatures. The oxidation was followed by biodegradation, which was achieved by inoculating
M. M. Reddy +4 more
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Proceedings of the Royal Society of London. Series B. Biological Sciences, 1974
Abstract The significance of biodegradability in the treatment and discharge of waste waters to natural bodies of water is discussed. Various methods of assessing biodegradability are described and their limitations illustrated by a consideration of the characteristics of bacterial growth and metabolism, including the phenomenon of co-
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Abstract The significance of biodegradability in the treatment and discharge of waste waters to natural bodies of water is discussed. Various methods of assessing biodegradability are described and their limitations illustrated by a consideration of the characteristics of bacterial growth and metabolism, including the phenomenon of co-
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The biodegradation of hydroquinone
Environmental Toxicology and Chemistry, 1982AbstractHydroquinone is readily degraded by an acclimated activated sludge unit when present at concentrations of 100 mg/L in synthetic photographic or synthetic domestic wastes. A number of pure cultures of yeasts, fungi, and bacteria were isolated from soil and sludges which can utilize hydroquinone as a sole carbon source.1,4-Benzoquinone, 2-hydroxy-
Kenneth G. Harbison, Robert T. Belly
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Accounts of Chemical Research, 2011
All living creatures respond to external stimuli. Similarly, some polymers undergo conformational changes in response to changes in temperature, pH, magnetic field, electrical field, or the wavelength of light. In one type of stimuli-responsive polymer, thermogel polymers, the polymer aqueous solution undergoes sol-to-gel transition as the temperature ...
Min Hee, Park +3 more
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All living creatures respond to external stimuli. Similarly, some polymers undergo conformational changes in response to changes in temperature, pH, magnetic field, electrical field, or the wavelength of light. In one type of stimuli-responsive polymer, thermogel polymers, the polymer aqueous solution undergoes sol-to-gel transition as the temperature ...
Min Hee, Park +3 more
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Biodegradable stents and non-biodegradable stents.
Minerva cardioangiologica, 2009The introduction of the coronary stent in 1986 was one of the most far-reaching changes in the practice of interventional cardiology since its inception in 1977. Despite all the benefits of the using a metallic drug eluting stent (DES), their limitations have generated interest towards biodegradable technology.
Garg, Scot, Serruys, PWJC (Patrick)
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