scholarly journals Unimodal sized silica nanocapsules produced through water-in-oil emulsions prepared by sequential irradiation of kilo- and submega-hertz ultrasounds

RSC Advances ◽  
2021 ◽  
Vol 11 (37) ◽  
pp. 22921-22928
Author(s):  
Takahiro Nemoto ◽  
Toshio Sakai ◽  
Tomohiko Okada

Silica nanocapsules were prepared using water droplets dispersed in soybean oil via sequential ultrasound irradiation (28 kHz → 200 kHz → 950 kHz).

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38906-38912 ◽  
Author(s):  
Machhindra S. Bhalerao ◽  
Anand V. Patwardhan ◽  
Manohar A. Bhosale ◽  
Vaishali M. Kulkarni ◽  
Bhalchandra M. Bhanage

A facile approach for the synthesis of a novel epoxidised soybean oil–Cu/Cu2O (ESO–Cu/Cu2O) bio-nanocomposite material via ultrasound irradiation with antibacterial activity was investigated.


2007 ◽  
Vol 293 (4) ◽  
pp. R1504-R1513 ◽  
Author(s):  
Anthony Sclafani ◽  
Steven Zukerman ◽  
John I. Glendinning ◽  
Robert F. Margolskee

Trpm5 and α-gustducin are key to the transduction of tastes of sugars, amino acids, and bitter compounds. This study investigated the role of these signaling proteins in the preference for fat, starch, and starch-derived polysaccharides (Polycose), using Trpm5 knockout (Trpm5 KO) and α-gustducin knockout (Gust KO) mice. In initial two-bottle tests (24 h/day), Trpm5 KO mice showed no preference for soybean oil emulsions (0.313–2.5%), Polycose solutions (0.5–4%), or starch suspensions (0.5–4%). Gust KO mice displayed an attenuated preference for Polycose, but their preferences for soybean oil and starch were comparable to those of C57BL/6J wild-type (WT) mice. Gust KO mice preferred starch to Polycose, whereas WT mice had the opposite preference. After extensive experience with soybean oil emulsions (Intralipid) and Polycose solutions, the Trpm5 KO mice developed preferences comparable to the WT mice, although their absolute intakes remained suppressed. Similarly, Gust KO mice developed a strong Polycose preference with experience, but they continued to consume less than the WT mice. These results implicate α-gustducin and Trpm5 as mediators of polysaccharide taste and Trpm5 in fat taste. The disruption in Polycose, but not starch, preference in Gust KO mice indicates that distinct sensory signaling pathways mediate the response to these carbohydrates. The experience-induced rescue of fat and Polycose preferences in the KO mice likely reflects the action of a postoral-conditioning mechanism, which functions in the absence of α-gustducin and Trpm5.


2000 ◽  
Vol 125 (5) ◽  
pp. 553-557 ◽  
Author(s):  
B.R. Bondada ◽  
C.E. Sams ◽  
D.E. Deyton ◽  
J.C. Cummins

Environmental factors such as rainfall may reduce the efficacy of foliar-applied soybean [Glycine max (L.) Merrill] oil in reducing pest mortality. Greenhouse studies were conducted to investigate the influence of rain on the retention of soybean oil and the influence of soybean oil and rainfall on surface morphology of apple [Malus sylvestris (L.) Mill var. domestica (Borkh.) Mansf.] and peach [Prunus persica (L.) Batsch (Peach Group)] leaves and stems. `Contender' peach and `Golden Delicious'/Malling 27 apple trees were grown in 19 L pots in a greenhouse (23 ± 9 °C) and sprayed with soybean oil (1%) emulsified with the adjuvants Latron B-1956 or K1. Twenty-four hours after treatment, the trees were subjected to simulated rainfall of 0.0, 0.25, 1.25, or 2.54 cm. A negative linear relationship existed between rainfall and oil retention. Peach leaves receiving 0.25, 1.25, and 2.54 cm rainfall retained 81%, 38%, and 18% of the applied oil, respectively. Oil retention by apple leaves was also negatively related to rainfall. For both species, a negative linear relationship existed between oil retention on stems and rainfall. There was no effect of emulsifier on retention of 1% soybean oil after rain on apple leaves or on the retention of 8% to 11% soybean oil on the stems of apple and peach. Scanning electron microscopy revealed that epicuticular wax occurred as striations on apple and peach leaves. The wax morphology on peach and apple stems appeared as thin plates and platelets, respectively. The wax morphology of leaves and stems of both trees was not affected either by the soybean oil emulsions or rain. Both emulsions induced stomatal closure in leaves and peach stems, however, stomates opened after rainfall of 1.25 or 2.54 cm. The lenticels appeared to be unaffected by either emulsion. Results illustrate that rainfall of 2.54 cm washed off a major portion of the applied oil. Thus, respraying may be needed under natural climatic conditions with rainfall ≥2.54 cm to restore the efficacy of applied soybean oil.


2020 ◽  
Vol 44 (32) ◽  
pp. 13534-13541
Author(s):  
Xin Gao ◽  
Qiang Ma ◽  
Zhengwei Jin ◽  
Pei Nian ◽  
Zheng Wang

A switchable superlyophobic ZIF-8 membrane can selectively remove oil droplets in oil-in-water emulsions via superoleophobicity and water droplets in water-in-oil emulsions via superhydrophobicity.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 464a-464
Author(s):  
B. R. Bondada ◽  
C.E. Sams ◽  
D.E. Deyton ◽  
J.C. Cummins

A study was conducted to investigate the influence of rain on retention of soybean oil emulsions and their influence on wax morphology and gas exchange of apple and peach leaves. Peach and apple trees were grown in 19-liter pots in a greenhouse (25 °C). Two different soybean oil emulsions were sprayed on trees in a randomized block design with five replications. Twenty-four hours after the oil sprays, the trees were subjected to three rainfall regimes, 0.25, 1.25, and 2.54 cm. The surface wax and the oil residue on leaves were determined gravimetrically after chloroform extraction. A negative relationship existed between rainfall and oil retention. Peach leaves receiving 0.25, 1.25, and 2.54 cm rainfall lost 19%, 62%, and 82% of the applied oil, respectively. There were no differences in oil retention between top, middle, and bottom layers of the canopy, indicating that leaf age did not influence oil retention. Oil residue loss from apple leaves was similar to that from peach. Scanning electron microscopy revealed that the leaf wax morphology was not affected by the soybean oil emulsions and occurred as striations on both leaf surfaces. However, one of the emulsions partially washed off the waxes from apple leaf surfaces whereas the other emulsion did not exhibit this phenomenon. Furthermore, both of the soybean oil emulsions induced partial or full stomatal closure, which influenced stomatal conductance and transpiration.


Sign in / Sign up

Export Citation Format

Share Document