keyword
MENU ▼
Read by QxMD icon Read
search

peel

keyword
https://www.readbyqxmd.com/read/29137742/ultrasound-coupled-with-supercritical-carbon-dioxide-for-exfoliation-of-graphene-simulation-and-experiment
#1
Yanzhe Gai, Wucong Wang, Ding Xiao, Yaping Zhao
Ultrasound coupled with supercritical CO2 has become an important method for exfoliation of graphene, but behind which a peeling mechanism is unclear. In this work, CFD simulation and experiment were both investigated to elucidate the mechanism and the effects of the process parameters on the exfoliation yield. The experiments and the CFD simulation were conducted under pressure ranging from 8MPa to 16MPa, the ultrasonic power ranging from 12W to 240W and the frequency of 20kHz. The numerical analysis of fluid flow patterns and pressure distributions revealed that the fluid shear stress and the periodical pressure fluctuation generated by ultrasound were primary factors in exfoliating graphene...
March 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29137576/perioperative-assessment-of-older-surgical-patients-using-a-frailty-index-feasibility-and-association-with-adverse-post-operative-outcomes
#2
H Lin, N M Peel, I A Scott, D L Vardesh, P Sivalingam, R L McBride, J J Morong, M J Nelson, R E Hubbard
This study aimed to examine the feasibility of using a frailty index (FI) based on comprehensive geriatric assessment (CGA), to assess the level of frailty in older surgical patients preoperatively and to evaluate the association of FI-CGA with poorer postoperative outcomes. Two hundred and forty-six patients aged ≥70 years undergoing intermediate- to high-risk surgery in a tertiary hospital were recruited. Frailty was assessed using a 57-item FI-CGA form, with fit, intermediate frail, and frail patients defined as FI ≤0...
November 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29135801/timing-and-outcome-of-surgery-for-persistent-macular-hole
#3
Rutul Patel, Mahesh Gopalakrishnan, Anantharaman Giridhar
PURPOSE: To evaluate the efficacy and optimum timing for resurgery in case of persistent macular hole (MH). METHODS: Twenty-five eyes of 25 patients who underwent fluid-air exchange with intravitreal C3F8 for persistent MH after vitrectomy + internal limiting membrane peeling + SF6 were included in the study. Best-corrected visual acuity, optical coherence tomography features including base diameter and configuration of MH, and time duration between the two surgeries were noted...
November 10, 2017: Retina
https://www.readbyqxmd.com/read/29134675/analytical-approach-dissipation-pattern-and-risk-assessment-of-pesticide-residue-in-green-leafy-vegetables-a-comprehensive-review
#4
REVIEW
Waziha Farha, A M Abd El-Aty, Md Musfiqur Rahman, Ji Hoon Jeong, Ho-Chul Shin, Jing Wang, Sung Shik Shin, Jae-Han Shim
The category of "leafy vegetables" comprises a wide range of plants, including cabbage, lettuce, leeks, spinach, Swiss chard, and kale, and it forms a significant component of the human diet. Typically, leafy vegetables are low in calories and fat, are great sources of vitamins, protein, dietary fibre, minerals (including iron, calcium, and nitrates), and are rich in phytochemicals. To counter the impact of pests on vegetables, a broad variety of pesticides is used. Because of their large surface areas, leafy vegetables are expected to have high residual pesticide levels...
November 14, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29134123/green-synthesis-of-capped-gold-nanoparticles-and-their-effect-on-gram-positive-and-gram-negative-bacteria
#5
Yashvant Rao, Gajendra K Inwati, Man Singh
Aim: We report synthesis of capped gold nanoparticles (C-AuNPs) of ≈20-30 nm by reducing HAuCl4 with flower and leaf extracts of Ocimum tenuiflorum, leaves of Azadirachta indica and Mentha spicata and peel of Citrus sinensis plants. Methods: Atomic force microscopy (AFM) and transmission electron microscopy (TEM) determined their size, shape and topographical structures. The C-AuNPs with UV-Vis spectrophotometer produced a maximum absorption within 530-535 nm wavelengths...
November 2017: Future Science OA
https://www.readbyqxmd.com/read/29133668/vitrectomy-for-full-thickness-macular-hole-in-adult-onset-coats-disease
#6
Vinod Kumar, Pradeep Kumar, Gaurav Garg, Saurabh Damodaran
The occurrence of full thickness macular hole in Coats' disease is extremely rare. The purpose of this case report is to report pars plana vitrectomy for the treatment of full thickness macular hole in a patient with adult onset Coats disease. A young male presented with decreased vision in his right eye because of full thickness macular hole. The macular hole was found to be associated with adult onset Coats' disease that was evident on ultra-wide field imaging. The patient underwent laser photocoagulation to the vascular telangiectasia followed by pars plana vitrectomy, large internal limiting membrane peeling and gas tamponade...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29130985/heptamethoxyflavone-reduces-phosphodiesterase-activity-and-t-cell-growth-in-vitro
#7
Yui Hamada, Mitsunari Nakajima, Kazuna Tsuzuki, Yoshiaki Amakura, Morio Yoshimura, Satoshi Okuyama, Yoshiko Furukawa
In a previous study, we reported that interleukin-4 production was reduced in spleen cells of mice administered 3,5,6,7,8,3',4'-heptamethoxyflavone (HMF), which is a polymethoxyflavone found at high concentrations in the peel of various citrus fruits. In this study, we investigated the function of HMF on the growth of T cells cultured from the spleens of mice. HMF decreased the reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) by anti-CD3/CD28 antibody-stimulated mouse spleen cells...
November 8, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29130237/in-situ-forming-oxidised-hyaluronic-acid-adipic-acid-dihydrazide-hydrogel-for-prevention-of-epidural-fibrosis-after-laminectomy
#8
M H Hu, K C Yang, Y H Sun, Y C Chen, S H Yang, F H Lin
Post-operative epidural fibrosis is a biological response after laminectomy that may lead to clinical symptoms, such as radicular pain. An ideal material for prevention of epidural fibrosis should be able to inhibit fibroblast adhesions and reduce formation of scar tissue. An injectable hydrogel would be the material of choice for this purpose, since it could fill an irregular surgical defect completely, gelate in situ and be delivered in a minimally-invasive manner. The objective of this study was to evaluate, in vitro and in vivo, the cytocompatibility and anti-adhesive effect of an oxidised hyaluronic acid/adipic acid dihydrazide (oxi-HA/ADH) hydrogel...
November 13, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/29129982/antioxidant-capacity-and-major-phenol-compounds-of-horticultural-plant-materials-not-usually-used
#9
Stina C M Burri, Anders Ekholm, Åsa Håkansson, Eva Tornberg, Kimmo Rumpunen
Horticultural plant materials not usually used from onion, carrot, beetroot, sea buckthorn, black and red currants as well as a wastewater powder from olive oil production were analyzed for total phenols content (FC), ferric reducing ability of plasma (FRAP), radical scavenging capacity (ABTS), and for major phenolic compounds by HPLC-MS. Antioxidant capacity and phenol content varied significantly between species and cultivars, with extracts of sea buckthorn leaves being superior. In different species, different phenolic compounds were closely associated with FRAP, ABTS and FC...
November 2017: Journal of Functional Foods
https://www.readbyqxmd.com/read/29127823/removal-of-anionic-dyes-reactive-black-5-and-congo-red-from-aqueous-solutions-using-banana-peel-powder-as-an-adsorbent
#10
Venkata Subbaiah Munagapati, Vijaya Yarramuthi, Yeji Kim, Kwon Min Lee, Dong-Su Kim
The adsorption characteristics of Reactive Black 5 (RB5) and Cong Red (CR) onto Banana Peel Powder (BPP) from aqueous solution were investigated as a function of pH, contact time, initial dye concentration and temperature. The BPP was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analysis. FTIR results revealed that hydroxyl (-OH), amine (-NH) and carboxyl (-C˭O) functional groups present on the surface of BPP. The SEM results show that BPP has an irregular and porous surface morphology which is adequate for dye adsorption...
November 8, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29127471/an-anatomic-study-on-the-attachment-of-the-joint-capsule-to-the-tibia-in-the-lateral-side-of-the-knee
#11
Hisayo Nasu, Akimoto Nimura, Sara Sugiura, Hitomi Fujishiro, Hideyuki Koga, Keiichi Akita
PURPOSE: The purpose of the current study was to examine the width, area, and histological characteristics of the capsular attachment to the tibia in the lateral side of the knee. METHODS: A total of 27 knees were used in this study. The joint capsule of the knee was peeled away from the tibia and the width of the capsular attachment to the tibia was measured by two independent observers using a caliper. Interclass correlation coefficients for each value were calculated to evaluate the validity of the measurement...
November 10, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29127318/minimally-invasive-hemostatic-materials-tackling-a-dilemma-of-fluidity-and-adhesion-by-photopolymerization-in-situ
#12
Yun Zhang, Dandan Song, Hong Huang, Zhiling Liang, Houhe Liu, Yugang Huang, Cheng Zhong, Guodong Ye
Hemostasis in vivo is a key to success in minimally invasive surgery (MIS). However, solid hemostatic materials cannot pass through the sheath tube of the MIS apparatus, while liquid ones are restricted by their low adhesion, which leads to them peeling off of tissue. To tackle the dilemma of fluidity and adhesion, a formulation containing a multifunctional sucrose allyl ether (SAE) monomer and an alpha-hydroxyketone liquid photoinitiator (HMPP) was applied as a lead hemostatic material for MIS. Real-time infrared results showed that SAE initiated by HMPP can rapidly polymerize into a transparent crosslinking membrane...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29127066/surface-modifications-and-oxidative-degradation-in-mpc-grafted-highly-cross-linked-polyethylene-liners-retrieved-from-short-term-total-hip-arthroplasty
#13
Shine Tone, Masahiro Hasegawa, Leonardo Puppulin, Giuseppe Pezzotti, Akihiro Sudo
Highly cross-linked polyethylene (HXLPE) hip liners grafted with 2-methacryloyloxyethyl phosphorylcholine (MPC) on their bearing surfaces have recently been commercialized as components of a new generation of artificial hip joints, while improvements in wear resistance and biocompatibility were reported based on in vitro studies. The present study aimed at evaluating the surface modification and oxidative degradation in short-term retrieved MPC-grafted liners by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FT-IR) with attenuated total reflection (ATR) equipment and Raman spectroscopy...
November 7, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29124937/an-implantable-transparent-conductive-film-with-water-resistance-and-ultra-bendability-for-electronic-devices
#14
Youngjun Song, Sejung Kim, Michael J Heller
Recently, instead of indium tin oxide (ITO), the random mesh pattern of metallic nanowires for flexible transparent conducting electrodes (FTCEs) has received a great amount of interest due to its flexibility, low resistance, reasonable price and compliant processes. Mostly, nanowires for FTCEs are fabricated by spray or mayer coating methods. However, the metallic nanowires layer of FTCEs, which is fabricated by these methods, has spiked surface roughness and low junction contact between the nanowires that leads to their high sheet resistance value...
November 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29120807/residual-behavior-and-risk-assessment-of-tridemorph-in-banana-conditions
#15
Siwei Wang, Haibin Sun, Yanping Liu
An efficient method has been developed for determining tridemorph in banana using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The dissipation and terminal residue of tridemorph in banana fields were carried out at good agricultural practice (GAP) conditions. The average recoveries ranged from 84.4% to 90.0% with relative standard deviations (RSDs) of 3.0%-7.0% at three different spiking levels. The results indicated that the tridemorph dissipated quickly in banana with half-lives of 7...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29120775/preparation-and-prebiotic-potential-of-pectin-oligosaccharides-obtained-from-citrus-peel-pectin
#16
Shanshan Zhang, Haijuan Hu, Lufeng Wang, Fengxia Liu, Siyi Pan
Pectin oligosaccharide (POS) fractions were obtained by controlled chemical degradation of citrus peel pectin. By adjusting trifluoroacetic acid (TFA) concentration, three oligosaccharides were obtained, of molecular weight (Mw) range 3000-4000 Da, 2000-3000 Da and lower than 2000 Da. Varying hydrogen peroxide (H2O2) concentration and reaction time produced oligosaccharides of 3000-4000 Da and 2000-3000 Da. The relative proportions of acidic monosaccharide increased from 68.58% to 89.93% (TFA) and from 63...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29120312/a-strategic-approach-to-workforce-development-for-local-public-health
#17
Beverley Bryant, Megan Ward
SETTING: In 2009, Peel Public Health set a vision to transform the work of public health from efficient delivery of public health services as defined by provincial mandate to the robust analysis of the health status of the local population and selection and implementation of programming to achieve best health outcomes. A strategic approach to the workforce was a key enabler. PPH is a public health unit in Ontario that serves 1.4 million people. INTERVENTION: An organization-wide strategic workforce development program was instituted...
November 9, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/29117732/phytochemical-constituents-from-dietary-plant-citrus-hystrix
#18
Mathusalini Sadasivam, Chandraprakash Kumarasamy, Arasakumar Thangaraj, Mani Govindan, Gayathri Kasirajan, Viswanathan Vijayan, Velmurugan Devadasan, Lin Chia-Her, Gogul Ramnath Madhusudhanan, Thirugnanasampandan Ramaraj, Mohan Palathurai Subramaniam
Chemical investigation of the fruit peel of dietary plant Citrus hystrix offered two new flavones 5,6,4'-trihydroxypyranoflavone I and 5,4'-dimethyl-6-prenylpyranoflavone XIII besides 11 known compounds. The structures of all compounds were elucidated with the aid of suitable analytical methods like 1D, 2D-NMR, mass and single crystal X-ray analysis. An X-ray crystal study of compound II was done for the first time and the compounds I-VI, XI and XII are hitherto not reported from this plant. Biological studies revealed that compound I found to have a good antidiabetic and antiacetylcholinesterase activities meanwhile compounds II, III and V showed a significant free radical scavenging ability as well as antioxidant capacity...
November 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29117067/outcomes-of-pars-plana-vitrectomy-for-macular-hole-in-patients-with-uveitis
#19
Natalia F Callaway, Marco A Gonzalez, Yoshihiro Yonekawa, Lisa J Faia, Efrem D Mandelcorn, Rahul N Khurana, Mohamed G A Saleh, Phoebe Lin, Lucia Sobrin, Thomas A Albini
PURPOSE: Inflammatory macular hole is a rare complication of uveitis, and data on surgical outcomes of closure are scarce. The purpose of this study is to evaluate the anatomical and visual outcomes of conventional pars plana vitrectomy for patients with uveitis. METHODS: Noncomparative, interventional, and consecutive case series from 6 vitreoretinal surgical centers from 2007 to 2015. Twenty eyes of 19 patients were included with 4 patients separated as viral retinitis...
November 7, 2017: Retina
https://www.readbyqxmd.com/read/29115662/chemical-mapping-of-essential-oils-flavonoids-and-carotenoids-in-citrus-peels-by-raman-microscopy
#20
Ying Yang, Xiaohe Wang, Chengying Zhao, Guifang Tian, Hua Zhang, Hang Xiao, Lili He, Jinkai Zheng
Citrus peels, by-products in large quantity, are rich in various functional and beneficial components which have wide applications. Chemical analysis of these components in citrus peels is an important step to determine the usefulness of the by-products for further applications. In this study, we explored Raman microscopy for rapid, nondestructive, and in situ chemical mapping of multiple main functional components from citrus peels. The relative amount and distribution in different locations (flavedo, albedo, and longitudinal section) of 3 main functional components (essential oils, carotenoids, and flavonoids) in citrus peels were systematically investigated...
November 8, 2017: Journal of Food Science
keyword
keyword
86558
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"