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Oil pulling

Donghyuk Lee, Joonhui Kim, Nam-Joon Cho, Taewook Kang, Sangken Kauh, Jungchul Lee
This paper reports a microfabrication-free approach to make hollow channel mass sensors by pulling a glass capillary and suspending it on top of a machined jig. A part of the pulled section makes simple contact with an actuation node and a quartz tuning fork (QTF) which acts as a sensing node. The two nodes define a pulled micro capillary tube resonator (PμTR) simply supported at two contacts. While a piezo actuator beneath the actuation node excites the PμTR, the QTF senses the resonance frequency of the PμTR...
October 3, 2016: Scientific Reports
Zhong Lin, Rong Han Wu, Ye Hui Zhou
The purpose of this study was to compare the silicone oil removal rate between vitrectomy and manual syringe negative pressure approach. Thirty-five silicone oil-filled eyes were enrolled and allocated for manual (n = 19) and vitrectomy (n = 16) removal approaches. For manual approach, a 10-ml syringe was connected to the 23-gauge cannula through a short section of blood transfusion tube. Removal was started after pulling and fixing the plunger to the end part. The syringe was pulled away immediately once the residual of silicone oil cannot be observed through the cornea...
September 17, 2016: International Ophthalmology
Mathijs Vleugel, Sophie Roth, Celebrity F Groenendijk, Marileen Dogterom
Mitotic spindle assembly, positioning and orientation depend on the combined forces generated by microtubule dynamics, microtubule motor proteins and cross-linkers. Growing microtubules can generate pushing forces, while depolymerizing microtubules can convert the energy from microtubule shrinkage into pulling forces, when attached, for example, to cortical dynein or chromosomes. In addition, motor proteins and diffusible cross-linkers within the spindle contribute to spindle architecture by connecting and sliding anti-parallel microtubules...
2016: Journal of Visualized Experiments: JoVE
Haibo Zhou, Longsheng Chen, Yong Liu, Julian Chen, Frédéric Francis
Using infochemicals to develop a push-pull strategy in pest control is a potential way to promote sustainable crop production. Infochemicals from plant essential oils were mixed with paraffin oil for slow release in field experiments on wheat to control the population density of cereal aphids and to enhance their natural enemies. (Z)-3-Hexenol (Z3H) attracted Metopolophum dirhodum and Sitobion avenae, the predominant species on wheat in Belgium, and may be a useful infochemical for aphid control by attracting aphids away from field plots...
2016: Scientific Reports
Hui Peng, Jianxian Sun, Hattan A Alharbi, Paul D Jones, John P Giesy, Steve Wiseman
Identification of toxic components of complex mixtures is a challenge. Here, oil sands process-affected water (OSPW) was used as a case study to identify those toxic components with a known protein target. Organic chemicals in OSPW exhibited dose-dependent activation of peroxisome proliferator-activated receptor γ (PPARγ) at concentrations less than those currently in the environment (0.025× equivalent of full-strength OSPW), by use of a luciferase reporter gene assay. Activation of PPARγ-mediated adipogenesis by OSPW was confirmed in 3T3L1 preadipocytes, as evidenced by accumulation of lipids and up-regulation of AP2, LPL, and PPARγ gene expression after exposure to polar fractions of OSPW...
July 19, 2016: Environmental Science & Technology
Oghenekome Gbinigie, Igho Onakpoya, Elizabeth Spencer, Marcy McCall MacBain, Carl Heneghan
AIM: To critically appraise and evaluate the evidence from randomized clinical trials (RCTs) examining the effectiveness of oil pulling on oro dental hygiene. METHODS: We conducted electronic searches in Medline, Embase, Amed, The Cochrane Library and Cinahl databases from inception to February 2015, and assessed reporting quality using the Cochrane risk of bias criteria. We included RCTs that compared oil pulling using conventional cooking oils with a control intervention...
June 2016: Complementary Therapies in Medicine
O Mosley, L Melling, M D Tarn, C Kemp, M M N Esfahani, N Pamme, K J Shaw
Despite recent advances in microfluidic-based integrated diagnostic systems, the sample introduction interface, especially with regards to large volume samples, has often been neglected. We present a sample introduction interface that allows direct on-chip processing of crude stool samples for the detection of Helicobacter pylori (H. pylori). The principle of IFAST (immiscible filtration assisted by surface tension) was adapted to include a large volume sample chamber with a septum-based interface for stool sample introduction...
May 24, 2016: Lab on a Chip
Mamta Kaushik, Pallavi Reddy, Roshni Sharma, Pooja Udameshi, Neha Mehra, Aditya Marwaha
OBJECTIVES: Oil pulling is an age-old practice that has gained modern popularity in promoting oral and systemic health. The scientific verification for this practice is insufficient. Thus, this study evaluated the effect of coconut oil pulling on the count of Streptococcus mutans in saliva and to compare its efficacy with that of Chlorhexidine mouthwash: in vivo. The null hypothesis was that coconut oil pulling has no effect on the bacterial count in saliva. MATERIALS AND METHODS: A randomized controlled study was planned and 60 subjects were selected...
January 1, 2016: Journal of Contemporary Dental Practice
Gang Wang, Zhixiang Zeng, He Wang, Lin Zhang, Xiaodong Sun, Yi He, Longyang Li, Xuedong Wu, Tianhui Ren, Qunji Xue
To efficiently remove and recycle oil spills, we construct aligned ZnO nanorod arrays on the surface of the porous stainless steel wire mesh to fabricate a porous unmanned ship (PUS) with properties of superhydrophobicity, superoleophilicity, and low drag by imitating the structure of nonwetting leg of water strider. The superhydrophobicity of the PUS is stable, which can support 16.5 cm water column with pore size of 100 μm. Water droplet can rebound without adhesion. In the process of oil/water separation, when the PUS contacts with oil, the oil is quickly pulled toward and penetrates into the PUS automatically...
December 2, 2015: ACS Applied Materials & Interfaces
Mark N Burgess, Elizabeth R Brunton, Ian F Burgess
Nit combing and removal of head louse, Pediculus humanus capitis De Geer (Anoplura: Pediculidae), eggs is a task made more difficult because "nit combs" vary in efficiency. There is currently no evidence that the binding of the eggshell to the hair can be loosened chemically and few hair treatments improve the slip of the louse eggs along the hair. Ultrasound, applied through the teeth of a nit comb, may facilitate the flow of fluids into the gap between the hair shaft and the tube of fixative holding louse eggs in place to improve lubrication...
January 2016: Journal of Medical Entomology
Muneyoshi Kuroyama, Hiroyuki Kagawa, Seigo Kitada, Ryoji Maekura, Masahide Mori, Hiroshi Hirano
BACKGROUND: Exogenous lipoid pneumonia is a rare disease caused by aspiration or inhalation of oily substances. CASE PRESENTATION: A 66-year-old male with dry cough (Case 1) and a 38-year-old female with shortness of breath (Case 2) demonstrated ground-glass opacities on chest computed tomography and were diagnosed with lipoid pneumonia based on the confirmation of lipid-laden alveolar macrophages. Both patients habitually performed sesame oil pulling via nasal or mouth washing for several months prior to the diagnosis...
2015: BMC Pulmonary Medicine
Deepika Jauhari, Nikhil Srivastava, Vivek Rana, Preetika Chandna
BACKGROUND: As the technological level of healthcare increases, it is important not to lose sight of the basics of patient care. No matter how sophisticated dental techniques have become, preventive dentistry still remains the foundation for oral health. Therefore, antimicrobial mouthrinses are developed to provide an effective means of preventing colonization by micro-organisms. AIM: The aim of this study was to evaluate and compare the antimicrobial activity of oil pulling, herbal mouthrinses and fluoride mouthwash on the caries activity and S...
May 2015: International Journal of Clinical Pediatric Dentistry
Krassimir D Danov, Rumyana D Stanimirova, Peter A Kralchevsky, Krastanka G Marinova, Simeon D Stoyanov, Theodorus B J Blijdenstein, Andrew R Cox, Eddie G Pelan
Here, we review the principle and applications of two recently developed methods: the capillary meniscus dynamometry (CMD) for measuring the surface tension of bubbles/drops, and the capillary bridge dynamometry (CBD) for quantifying the bubble/drop adhesion to solid surfaces. Both methods are based on a new data analysis protocol, which allows one to decouple the two components of non-isotropic surface tension. For an axisymmetric non-fluid interface (e.g. bubble or drop covered by a protein adsorption layer with shear elasticity), the CMD determines the two different components of the anisotropic surface tension, σs and σφ, which are acting along the "meridians" and "parallels", and vary throughout the interface...
July 2016: Advances in Colloid and Interface Science
Ulla Obermayr, Joachim Ruther, Ulrich R Bernier, Andreas Rose, Martin Geier
The increase in insecticide resistant mosquito populations necessitates the exploration of novel vector control intervention measures. Push-pull strategies for insect control have been successful when used in integrated crop pest management. Through the combinatory use of deterring and attracting stimuli, the abundance of insect pests can be changed in a given area. A push-pull strategy might also significantly reduce human-vector contacts and augment existing mosquito control strategies, e.g. through the combination of an attractive trapping system and a potent spatial repellent...
2015: PloS One
Changbing Yang, Susan D Hovorka, Ramón H Treviño, Jesus Delgado-Alonso
This study presents a combined use of site characterization, laboratory experiments, single-well push-pull tests (PPTs), and reactive transport modeling to assess potential impacts of CO2 leakage on groundwater quality and leakage-detection ability of a groundwater monitoring network (GMN) in a potable aquifer at a CO2 enhanced oil recovery (CO2 EOR) site. Site characterization indicates that failures of plugged and abandoned wells are possible CO2 leakage pathways. Groundwater chemistry in the shallow aquifer is dominated mainly by silicate mineral weathering, and no CO2 leakage signals have been detected in the shallow aquifer...
July 21, 2015: Environmental Science & Technology
Wei He, Nesrin Şenbil, A D Dinsmore
We measure capillary forces on particles at fluid interfaces in order to assess the key parameters that yield effective stabilizing particles. In our experiments, a millimeter-scale particle is attached to a cantilever, which is used to pull the particle perpendicular to the interface. Simultaneously, we image from the side to measure the cantilever's deflection and thus the pulling force, as well as the height of the particle and the shape of the interface. We find that the peak force on a particle at an interface crowded with other particles is consistently smaller than the force at a clean interface...
July 7, 2015: Soft Matter
Faizal C Peedikayil, Prathima Sreenivasan, Arun Narayanan
BACKGROUND: Oil pulling or oil swishing therapy is a traditional procedure in which the practitioners rinse or swish oil in their mouth. It is supposed to cure oral and systemic diseases but the evidence is minimal. Oil pulling with sesame oil and sunflower oil was found to reduce plaque related gingivitis. Coconut oil is an easily available edible oil. It is unique because it contains predominantly medium chain fatty acids of which 45-50 percent is lauric acid. Lauric acid has proven anti inflammatory and antimicrobial effects...
March 2015: Nigerian Medical Journal: Journal of the Nigeria Medical Association
Bo Ram Lee, Amadeu K Sum
To prevent hydrate plugging conditions in the transportation of oil/gas in multiphase flowlines, one of the key processes to control is the agglomeration/deposition of hydrate particles, which are determined by the cohesive/adhesive forces. Previous studies reporting measurements of the cohesive/adhesive force between hydrate particles used cyclopentane hydrate particles in a low-pressure micromechanical force apparatus. In this study, we report the cohesive forces of particles measured in a new high-pressure micromechanical force (MMF) apparatus for ice particles, mixed (methane/ethane, 74...
April 7, 2015: Langmuir: the ACS Journal of Surfaces and Colloids
Charles Dhong, Joëlle Fréchette
Tree frogs are able to take advantage of an array of epithelial cells in their toe pads to modulate their adhesion to surfaces under dry, wet, and flooded environments. It has been hypothesized that the interconnected channels separating the epithelial cells could reduce the hydrodynamic repulsion to facilitate contact under a completely submerged environment (flooded conditions). Using a custom-built apparatus we investigate the interplay between surface structure and loading conditions on the peeling force...
March 14, 2015: Soft Matter
Poonam Sood, Aruna Devi M, Ridhi Narang, Swathi V, Diljot Kaur Makkar
BACKGROUND: Oral malodor affects a large section of population. Traditional Indian folk remedy, oil pulling not only reduces it but can also bring down the cost of treatment. AIMS: To compare the efficacy of oil pulling and chlorhexidine in reducing oral malodor and microbes. MATERIALS AND METHODS: Three week randomized controlled trial was conducted among 60 students of three hostels of Maharani College of science and arts and commerce and Smt V...
November 2014: Journal of Clinical and Diagnostic Research: JCDR
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