Auto-oscillation of surface tension: heptanol in water and water/ethanol systems

Grigorieva, O. V.; Grigoriev, D. O.; Kovalchuk, N. M.; Vollhardt, D.

doi:10.1016/j.colsurfa.2004.09.014

Cited by 14 publications

(4 citation statements)

References 17 publications

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“…For the lighter alcohols, the direction of the surface current reverses immediately after the lens disappearspresumably due to the relatively high surface tension of upwelling water near the center. Similar effects in controlled geometries produce oscillating, surface-tension-driven currents. , …”

Section: Resultsmentioning

confidence: 90%

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Motion and Dissolution of Drops of Sparingly Soluble Alcohols on Water

et al. 2008

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The dissolution of liquids with low mutual solubility is typically slow. However, drops of sparingly soluble, low-density, low-surface-tension liquids often dissolve rapidly on water due to surface tension instabilities and gradients. We report observations of the motion and dissolution of drops of aliphatic alcohols of a wide range of alkyl chain lengths as they dissolve in water. The alcohol drops are rendered visible by adding small amounts of iodine or other dyes. These drops display dewetting instabilities, fragmentation, fingering, and oscillation. As the length of the alcohol carbon chain increases from n = 4 to n = 9, dissolution slows dramatically. The roles of alcohol solubility and water surface area in promoting rapid dissolution are discussed.

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Section: Resultsmentioning

confidence: 90%

“…Similar effects in controlled geometries produce oscillating, surface-tension-driven currents. 23,24 Temperature. Lens evolution can be dramatically modified by varying the temperature of the alcohol drop and the water bath.…”

Section: Resultsmentioning

confidence: 99%

Motion and Dissolution of Drops of Sparingly Soluble Alcohols on Water

et al. 2008

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“…For instance, the regiospecificity of Fh3GT2 and whether Fh3GT2 could transfer UDP-galactose or other sugar donors to flavonoid were beyond the scope of the current investigation. Considering the high similarities among Fh3GT3, Fh3GT4, and Fh3GT2, their invalid functions in transferring UDP-glucose to anthocyanidins or flavonols promote further research to decode the mechanisms of Fh3GT3 and Fh3GT4 in glycosylating other flavonoids or metabolites (Fukuchi-Mizutani et al, 2003; Sawada et al, 2005; Yonekura-Sakakibara et al, 2007; Yonekura-Sakakibara et al, 2012; Bönisch et al, 2014b; Dong et al, 2014; Liu et al, 2015; Pasquet et al, 2016; Mageroy et al, 2017). It is conceivable that the present study provided new insights into plant flavonoid modifications, as well as the evolutionary divergence in UF3GT paralogous genes in the biochemical and transcriptional levels.…”

Section: Discussionmentioning

confidence: 99%

“…The UF3GTs belong to the superfamily characterized by a Plant Secondary Product Glycosyltransferase (PSPG box) composed of 44 conserved amino acids (Vogt and Jones, 2000; Caputi et al, 2012). Generally, the UF3GTs exhibit expansive substrate specificities by transferring UDP sugars to a series of flavonoids in vitro (Fukuchi-Mizutani et al, 2003; Sawada et al, 2005; Yonekura-Sakakibara et al, 2007). However, it is still an open question to interpreting the origin evolution of UF3GTs from different species or the functional divergence of different copies in the same plant considering the following two limitations.…”

Section: Introductionmentioning

confidence: 99%

Functional Differentiation of Duplicated Flavonoid 3-O-Glycosyltransferases in the Flavonol and Anthocyanin Biosynthesis of Freesia hybrida

Meng

Zhou

et al. 2019

Front. Plant Sci.

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Flavonols and anthocyanins are two widely distributed groups of flavonoids that occurred apart during plant evolution and biosynthesized by shared specific enzymes involved in flavonoid metabolism. UDP-glucose, flavonoid 3-O-glycosyltransferase (UF3GT), is one of the common enzymes which could catalyze the glycosylation of both flavonol and anthocyanidin aglycons simultaneously in vitro. However, whether and how UF3GT paralogous genes function diversely at the biochemical and transcriptional levels are largely unknown. Recently, Fh3GT1 was identified to be a member of UF3GTs in Freesia hybrida. However, its expression patterns and enzymatic characteristics could not coincide well with flavonol accumulation. In an attempt to characterize other flavonoids, especially flavonol glycosyltransferase genes in Freesia, three closest candidate UFGT genes—Fh3GT2, Fh3GT3, and Fh3GT4—were mined from the Freesia transcriptomic database and isolated from the flowers of the widely distributed Freesia cultivar, Red River®. Based on bioinformatic analysis and enzymatic assays, Fh3GT2 turned out to be another bona fide glycosyltransferase gene. Biochemical analysis further proved that Fh3GT2 preferentially glucosylated kaempferol while Fh3GT1 controlled the glucosylation of quercetin and anthocyanidins. In addition, transfection assays demonstrated that Fh3GT2 could be mainly activated by the flavonol regulator FhMYBF1 or the anthocyanin regulator FhPAP1, whereas Fh3GT1 could only be activated by FhPAP1. These findings suggested that Fh3GTs might have functionally diverged in flavonoid biosynthesis at both the biochemical and transcriptional levels.

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Dynamics of Piezoelectric Print‐Heads

Dijksman

Pierik

2012

Inkjet Technology for Digital Fabrication

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Auto-oscillation of surface tension: heptanol in water and water/ethanol systems

Cited by 14 publications

References 17 publications

Motion and Dissolution of Drops of Sparingly Soluble Alcohols on Water

Motion and Dissolution of Drops of Sparingly Soluble Alcohols on Water

Functional Differentiation of Duplicated Flavonoid 3-O-Glycosyltransferases in the Flavonol and Anthocyanin Biosynthesis of Freesia hybrida

Dynamics of Piezoelectric Print‐Heads

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