Two formulations of the industrial surfactant, Toximul, differentially reduce mouse weight gain and hepatic glycogen in vivo during early development: effects of exposure to Influenza B Virus

Murphy, Mary; Al-Khalidi, Mustafa; Crocker, John F. S.; Lee, S.H.; O’Regan, Patrick A.; Acott, Philip D.

doi:10.1016/j.chemosphere.2004.11.084

Cited by 22 publications

(13 citation statements)

References 34 publications

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“…Chemically synthesized surfactants are routinely used for removal of petroleum pollutants (Kanaly and Harayama 2010). However, most chemically synthesized surfactants are only partially and slowly biodegraded by the environmental microbes, some of which are known to be toxic to animals, ecosystems, and humans, contributing to secondary pollutants (Henkel et al 2012; Murphy et al 2005). …”

Section: Introductionmentioning

confidence: 99%

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

Cheng

Liang

et al. 2017

AMB Expr

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Petroleum pollutants emulsified by biosurfactants facilitate uptake and biodegradation by environmental microbes. In this report, we show the characterization of an indigenous surfactant-producing crude-oil-eating microbe isolated from petroleum-sludge in Zhoushan islands, China, where one of the national strategic petroleum reservoirs is located. We examined biosurfactant activities using surface tension analysis on mixed culture originated from oil-sludge microbes. In parallel, dynamics of individual microbial populations in cultures were monitored using the terminal fluorescence labeled (TFL)-RFLP method. Biosurfactant activity was found to be associated with a dominant microbial species designated as ZS1 (Zhou-Shan isolate 1). Cell-free supernatant from the ZS1 culture exhibited 100% emulsification index against crude oil and reduces surface tension to 26.5 mN/m. Sequence-based analysis suggested that the ZS1 belongs to the group of Pseudomonas aeruginosa. LC–MS/MS analysis indicated that the rhamnolipids produced by the ZS1 consisted of 7 monorhamnolipid and 11 dirhamnolipid homologues (RL7-11), two of which were novel. Maximum yield of rhamnolipids in shake-flask ZS1 culture could reach 44 g/l. Furthermore, we showed that ZS1 was capable of growing in MS medium supplemented with 1% crude oil as sole carbon source, in which cell mass increase coincided with the formation of crude-oil emulsion. Half of the crude oil was consumed by the ZS1 in 12 days. Taken together, our results show that ZS1 produces high level of rhamnolipids that effectively emulsify crude oil accelerating its uptake and degradation. Hence, it is suitable for bioremediation of petroleum pollutants in Zhoushan coastal areas.

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Section: Introductionmentioning

confidence: 99%

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

Cheng

Liang

et al. 2017

AMB Expr

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“…Thus the influence of NaCl, NaNO 3 , Na 2 SO 3 , Na 3 PO 4 and Na 2 SO 4 on the aggregation of Ag NPs was also studied. The effect of various salts on Ag NPs with CSs was investigated separately in the range of 1.0 X10 -3 -5.0X10 -3 M under optimized conditions.…”

Section: Effect Of Salt Concentrationmentioning

confidence: 99%

“…Allergic reactions and inflammation can be caused by CSs in some sensitive persons; in particular, they can cause corneal damage when exposed to the eye 3 . CSs have become pollutants as a result of their deposition on land or into water bodies, and many are toxic to aquatic organisms 4 . Therefore, determination of quaternary cationic surfactants such as dodecyl trimethyl ammonium bromide (DTAB), myristil trimethyl ammonium bromide (TTAB), cetrimonium trimethyl ammonium bromide (CTAB), cetyl pyridinium chloride (CPC) and benzalkonium chloride (BZK) is very important.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticles-Based Nano-drop Spectrophotometric Determination of Cationic Surfactants Coupled with Hydrophobic Interaction; An Application to Pharmaceuticals and Environmental

Sharma¹,

Tapadia²

2016

Orient. J. Chem

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The proposed work describes the nanodrop spectrophotometric determination of cationic surfactants using citrate-modified silver nanoparticles based on the aggregation of silver nanoparticles induced by cationic surfactants due to the hydrophobic effect. The visible color change in the solution of silver nanoparticle includes a red shift with the quenching of the absorption spectra. The maximum absorbance was measured at wavelength, λ max 400 nm. The concentrations of cationic surfactants were determined using a nanodrop spectrophotometer with limits of detection of 15.0, 8.0, 6.0, 5.8, and 13.0 µM for dodecyl trimethyl ammonium bromide, myristil trimethyl ammonium bromide, cetrimonium trimethyl ammonium bromide, cetyl pyridinium chloride and benzalkonium chloride, respectively. The proposed method was successfully applied for the determination of cetyl pyridinium chloride in commercial mouthwasher, gum astringent and nasal spray pharmaceuticals and environmental samples.

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“…Sulfonic acids are a unique class of organic acids with wide ranging applications. Industrially, sulfonic acids are used in animal feeds, dyes , [1b] surfactants, pesticides, [2] etc. A number of sulfonic acid derivatives are associated with medicinal properties.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of thiols to sulphonic acids with Oxone^®/NaHCO₃ and KBrO₃

2016

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The reagent system Oxone /NaHCO 3 is shown to be very convenient for direct conversion of thiols to sulfonic acids. The simple procedure that involves stirring of thiol, Oxone /NaHCO 3 in CH 3 CN-H 2 O (3:2, v/v) mixture at 20 AE 5 8C allows access to a variety of aliphatic as well as electron rich and deficient ar-omatic sulfonic acids. The oxidation is also shown to occur with KBrO 3 , albeit over longer durations. The mechanism of thiol-tosulfonic acid oxidation with Oxone is proposed to proceed via electron transfer steps, which is supported by the formation of disufide at low conversions.

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Two formulations of the industrial surfactant, Toximul, differentially reduce mouse weight gain and hepatic glycogen in vivo during early development: effects of exposure to Influenza B Virus

Cited by 22 publications

References 34 publications

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

Silver Nanoparticles-Based Nano-drop Spectrophotometric Determination of Cationic Surfactants Coupled with Hydrophobic Interaction; An Application to Pharmaceuticals and Environmental

Oxidation of thiols to sulphonic acids with Oxone^®/NaHCO₃ and KBrO₃

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Two formulations of the industrial surfactant, Toximul, differentially reduce mouse weight gain and hepatic glycogen in vivo during early development: effects of exposure to Influenza B Virus

Cited by 22 publications

References 34 publications

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

Silver Nanoparticles-Based Nano-drop Spectrophotometric Determination of Cationic Surfactants Coupled with Hydrophobic Interaction; An Application to Pharmaceuticals and Environmental

Oxidation of thiols to sulphonic acids with Oxone®/NaHCO3 and KBrO3

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Oxidation of thiols to sulphonic acids with Oxone^®/NaHCO₃ and KBrO₃