Results 221 to 230 of about 58,460 (267)
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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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Biodegradability of Tioctilate
Experientia, 1979The biodegradability of Tioctilate (octylthiobenzoate), a new pesticide, has been examined by means of 5 tests. The compound appears to be susceptible to microbial metabolism.
P, Pipyn, C, Beaudet, W, Verstraete
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Determinants of biodegradability
Quarterly Reviews of Biophysics, 1978As a consequence of the activities of modern industry and agriculture, many made-made organic compounds have found their way into our environment, and by persisting there for varying periods of time have caused concern to society. Why do some chemicals persist while others disappear?
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Research Journal of Pharmacy and Technology, 2017
Biodegradable polymers are a newly emerging field. Biodegradable polymers are useful for various applications in medical, agriculture, drug release and packaging fields. Biodegradable polymers have received much more attention in the last decades due their potential applications in the fields related to environmental protection and the maintenance of ...
Rajeev Kumar +2 more
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Biodegradable polymers are a newly emerging field. Biodegradable polymers are useful for various applications in medical, agriculture, drug release and packaging fields. Biodegradable polymers have received much more attention in the last decades due their potential applications in the fields related to environmental protection and the maintenance of ...
Rajeev Kumar +2 more
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Applied Microbiology and Biotechnology, 1999
The chelating agent ethylenediaminetetraacetate (EDTA) is not degraded by conventional biological and physicochemical methods for the treatment of wastewater and the purification of drinking water. Of the measurable organic compounds it is the one present at the highest concentration in many surface and drinking waters.
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The chelating agent ethylenediaminetetraacetate (EDTA) is not degraded by conventional biological and physicochemical methods for the treatment of wastewater and the purification of drinking water. Of the measurable organic compounds it is the one present at the highest concentration in many surface and drinking waters.
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Microencapsulation of mildronate in biodegradable and non-biodegradable polymers
Journal of Microencapsulation, 2013The extremely high hygroscopicity (solubility in water ≥2 g/ml) of the pharmaceutical preparation mildronate defines specific requirements to both packaging material and storage conditions. To overcome the above mentioned inconveniences, microencapsulated form of mildronate was developed using polystyrene (PS) and poly (lactic acid) (PLA) as watertight
Dagnija, Loca +6 more
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Biodegradability and biodegradation pathways of endosulfan and endosulfan sulfate
Applied Microbiology and Biotechnology, 2013Endosulfan and endosulfan sulfate are persistent organic pollutants that cause serious environmental problems. Although these compounds are already prohibited in many countries, residues can be detected in soils with a history of endosulfan application.
Ryota, Kataoka, Kazuhiro, Takagi
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Preparation of a biodegradable oil absorber and its biodegradation
Bioprocess and Biosystems Engineering, 2011The biodegradable oil absorption resin (B-PEHA) was prepared by suspension polymerization, and its preparation was confirmed by Fourier transform infrared analysis. The oil absorption capacities of the prepared B-PEHA were: chloroform 30.88, toluene 19.75, xylene, 18.78, THF 15.96, octane 11.43, hexane 9.5, diesel oil 12.80, and kerosene 13.79 g/g. The
Su-Yong, Yoo +2 more
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Biodegradation data evaluation for structure/biodegradability relations
Environmental Toxicology and Chemistry, 1987Abstract Previous attempts at structure/biodegradability relations (SBRs) and available biodegradation data are reviewed and it is concluded that (1) not enough rate data on large numbers of chemicals are available to develop quantitative SBRs and (2) attempted qualitative SBRs have suffered from either poor documentation of the ...
Philip H. Howard +2 more
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