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Shahid Khan, Kangkai Wang, Guangzhong Yuan, Mahmood Ul Haq, Zhizheng Wu, Muhammad Usman, Chenlu Song, Gaorong Han, Yong Liu
Based on TiO2 as a model system, the sol-gel one step facile method is established to fabricate the macro-porous morphology films on the basis of Marangoni effect. In this proposed mechanism, the binary mixture of hydrophilic CuCl2 and lipophilic Ti-O network is used in sol to produce phase separation. A suitable evaporation rate in the gel film process leads to the macro-porous film due to Marangoni effect. It is observed that the macro-porous morphology of the film sustains during the annealing process, which suggests the creation of porous surface morphology in gel film stage rather than due to annealing...
July 13, 2017: Scientific Reports
Dina Tukhvatullina, Alain Béguin, Henry Pong, Maria Del Mar Cabarbas, Dmitry Klokol, Mike Ks Chan, Michelle B F Wong
INTRODUCTION: Skin is changing over time showing signs of aging: dryness, increase in visual and tactile roughness, decrease in collagen content and stiffness, and eventually formation of deep and surface wrinkles, and fine lines. METHODS: Eight-week open experimental study was conducted to test efficacy of MFIII Blue Cell Serum Gel. Main criteria to determine product efficacy by following skin biophysical techniques were as follows: skin moisturization, firmness, epidermal and dermal density, skin surface properties and sebum level, reduction in fine lines and wrinkles...
June 22, 2017: Journal of Cosmetic Dermatology
Bushra Naheed, Jan Herman Kuiper, Olalekan A Uthman, Fidelma O'Mahony, Patrick Michael Shaughn O'Brien
BACKGROUND: Premenstrual syndrome (PMS) is a psychological and somatic disorder of unknown aetiology, with symptoms typically including irritability, depression, mood swings, bloating, breast tenderness and sleep disturbances. About 3% to 10% of women who experience these symptoms may also meet criteria for premenstrual dysphoric disorder (PMDD). PMS symptoms recur during the luteal phase of the menstrual cycle and reduce by the end of menstruation. PMS results from ovulation and may be due to ovarian steroid interactions relating to neurotransmitter dysfunction...
March 3, 2017: Cochrane Database of Systematic Reviews
Jai Prakash Khichar, Gyan Chand Gahlot, Vijay Kumar Agrawal, Kiran, Ajay Singh Dewna, Prakash, Mohammad Ashraf
AIM: To estimate genetic variability in exon 3 of caprine myostatin gene in Marwari goats. MATERIALS AND METHODS: A total of 120 blood samples from unrelated Marwari goats were randomly collected from different villages of Bikaner (Rajasthan), India. Genomic DNA was extracted from whole blood using blood DNA isolation kit (Himedia Ltd.) as per manufacturer's protocol. The quality of extracted genomic DNA was checked on 0.8% agarose gel. Specifically designed a primer set for caprine myostatin (MSTN) gene (Genebank accession no...
June 2016: Veterinary World
Xumei Lv, Wangming Tan, Ye Chen, Yingzhuang Chen, Ming Ma, Bo Chen, Shouzhuo Yao
A novel sol-gel "one-pot" approach in tandem with a radical-mediated thiol-ene reaction for the synthesis of a methacrylic acid-based hybrid monolith was developed. The polymerization monomers, tetramethoxysilane (TMOS) and 3-mercaptopropyl trimethoxysilane (MPTS), were hydrolyzed in high-concentration methacrylic acid solution that also served as a hydrophilic functional monomer. The resulting solution was then mixed with initiator (2, 2'-azobis (2-methylpropionamide) dihydrochloride) and porogen (urea, polyethylene glycol 20,000) in a capillary column and polymerized in water bath...
July 8, 2016: Journal of Chromatography. A
Łukasz Tabisz, Ainur Tukibayeva, Radoslaw Pankiewicz, Marta Dobielska, Boguslawa Leska
Five novel disiloxane compounds comprising guanidinium and pyridinium moieties were obtained with high yields and purity. The verified synthetic pathways were then applied for modification of pre-functionalized silica gel, producing materials with the analogous organic side-chains. These halide-containing compounds and materials were then compared as to their ion-exchange properties: two disiloxanes proved to be effective in leaching different anions (nitrate, benzoate and ascorbate) from solid to organic phase, and pyridinium-functionalized silica gels showed selectivity towards perchlorate ion, removing it from methanolic solutions with preference to other singly charged anions...
2015: PloS One
Farahnaz Sharafeddin, Farnaz Farshad
STATEMENT OF THE PROBLEM: Immediate application of bonding agent to home- bleached enamel leads to significant reduction in the shear bond strength of composite resin due to the residual oxygen. Different antioxidant agents may overcome this problem. PURPOSE: This study aimed to assess the effect of different antioxidants on the shear bond strength of composite resin to home-bleached. MATERIALS AND METHOD: Sixty extracted intact human incisors were embedded in cylindrical acrylic resin blocks (2...
December 2015: Journal of Dentistry
Seyed Mohamad Mohseni Mehran, Mandana Mansour Ghanaei, Ali Mojtehadi
BACKGROUND: HPV is one of the most common sexually transmitted infections. However, little is known about its prevalence in the female population in Rasht, Northern of Iran. The aim of this study was to find the incidences of HPV viruses in high-risk women in Rasht by wet Pap smear from 2010 to 2015. MATERIALS AND METHODS: This cross-sectional study investigated HPV prevalence and its genotype distribution among 103 apparently healthy and non- healthy women with abnormal cells in pap exam...
July 2015: Journal of Clinical and Diagnostic Research: JCDR
Yingying Hu, Shiyao Bian, John Grotberg, Marcel Filoche, Joshua White, Shuichi Takayama, James B Grotberg
Fluid dynamics of mucus plug rupture is important to understand mucus clearance in lung airways and potential effects of mucus plug rupture on epithelial cells at lung airway walls. We established a microfluidic model to study mucus plug rupture in a collapsed airway of the 12th generation. Mucus plugs were simulated using Carbopol 940 (C940) gels at concentrations of 0.15%, 0.2%, 0.25%, and 0.3%, which have non-Newtonian properties close to healthy and diseased lung mucus. The airway was modeled with a polydimethylsiloxane microfluidic channel...
July 2015: Biomicrofluidics
Emily R Draper, Edward G B Eden, Tom O McDonald, Dave J Adams
Multicomponent supramolecular systems could be used to prepare exciting new functional materials, but it is often challenging to control the assembly across multiple length scales. Here we report a simple approach to forming patterned, spatially resolved multicomponent supramolecular hydrogels. A multicomponent gel is first formed from two low-molecular-weight gelators and consists of two types of fibre, each formed by only one gelator. One type of fibre in this 'self-sorted network' is then removed selectively by a light-triggered gel-to-sol transition...
October 2015: Nature Chemistry
Yu Yang, Jun Yang, Wei-Min Wu, Jiao Zhao, Yiling Song, Longcheng Gao, Ruifu Yang, Lei Jiang
Polystyrene (PS) is generally considered to be durable and resistant to biodegradation. Mealworms (the larvae of Tenebrio molitor Linnaeus) from different sources chew and eat Styrofoam, a common PS product. The Styrofoam was efficiently degraded in the larval gut within a retention time of less than 24 h. Fed with Styrofoam as the sole diet, the larvae lived as well as those fed with a normal diet (bran) over a period of 1 month. The analysis of fecula egested from Styrofoam-feeding larvae, using gel permeation chromatography (GPC), solid-state (13)C cross-polarization/magic angle spinning nuclear magnetic resonance (CP/MAS NMR) spectroscopy, and thermogravimetric Fourier transform infrared (TG-FTIR) spectroscopy, substantiated that cleavage/depolymerization of long-chain PS molecules and the formation of depolymerized metabolites occurred in the larval gut...
October 20, 2015: Environmental Science & Technology
Nai-Yu Liu, Hsiao-Hui Lee, Zee-Fen Chang, Yeou-Guang Tsay
It has been observed that a modified peptide and its non-modified counterpart, when analyzed with reverse phase liquid chromatography, usually share a very similar elution property [1-3]. Inasmuch as this property is common to many different types of protein modifications, we propose an informatics-based approach, featuring the generation of segmental average mass spectra ((sa)MS), that is capable of locating different types of modified peptides in two-dimensional liquid chromatography-mass spectrometric (LC-MS) data collected for regular protease digests from proteins in gels or solutions...
September 10, 2015: Analytica Chimica Acta
Selahattin Kıyan, Yiğit Uyanıkgil, Yusuf Ali Altuncı, Türker Çavuşoğlu, Emel Öykü Çetin Uyanıkgil, Fatih Karabey
BACKGROUND: Hypericum perforatum (HP) (St. John's Wort-Kantaron) has been used widely for the treatment of burn injuries for many years in traditional Turkish medicine. The aim of study was to investigate HP treatment in experimental thermal burns and compare it with silver sulfadiazine (SS) treatment. METHODS: Thirty-five rats were randomly assigned to one of the five groups, 7 rats in each. A second-degree thermal burn was created on the dorsal sites of rats by exposing an area of 4×4 cm to 100 °C boiled water for 10 seconds...
September 2015: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
A Medina, J M Mancera, E Martínez-Manzanares, M A Moriñigo, S Arijo
Senegalese sole cultures are frequently affected by Vibrio harveyi disease outbreaks. Vaccines in aquaculture are one of the most successful methods of preventing fish pathologies; however, these vaccines are usually composed of inactivated whole cells containing a wide pool of antigens, and some do not induce any protection against pathogens. Thus, the aim of this study was to identify immunogenic proteins of V. harveyi involved in the specific antibody production by Senegalese sole. S. senegalensis specimens were immunized, by intraperitoneal injection, with V...
November 2015: Fish & Shellfish Immunology
Samah Saker, Mutlu Özcan
STATEMENT OF PROBLEM: The prognosis of a fixed dental prosthesis cemented to endodontically treated teeth is primarily determined by the presence of a ferrule on the tooth. Adhesion of the post in the root canal, conditioning methods for the canal and the amount of coronal structure could also be decisive on survival of reconstructions cemented on endodontically treated teeth. PURPOSE: The purpose of this in vitro study was to test the effect of remaining coronal structure on the retention of airborne-particle abraded fiber-reinforced composite resin posts built up with composite resin cores after the treatment of root canal dentin with different conditioning protocols...
December 2015: Journal of Prosthetic Dentistry
Christine Derzko, Martin Sergerie, Gaye Siliman, Mark Alberton, Kristian Thorlund
OBJECTIVE: Divigel and Estrogel are estradiol gels for the treatment of postmenopausal women with moderate to severe vasomotor symptoms. They differ with respect to several factors including estradiol concentration and surface application, and cannot be compared solely on the basis of their estradiol dose. No randomized clinical trials have compared them head to head, but both have been compared with placebo. Therefore, the objective of this study was to conduct a systematic review and network meta-analysis of the two estradiol gels...
March 2016: Menopause: the Journal of the North American Menopause Society
Lara Anwar Shehab, Bahija Basheer, Kusai Baroudi
BACKGROUND: New methods have been introduced to facilitate dental procedures, but the administration of local anesthesia is still necessary to perform pain control during several dental procedures. AIM: To evaluate the effectiveness of the lidocaine Denti-patch® system versus the lidocaine topical anesthetic gel in children concerning pain reaction during injection. MATERIALS AND METHODS: One hundred 9-12-year-old cooperative children weighing more than 29 kg in need of bilateral dental treatment requiring maxillary and mandibular injection and not suffering from acute pain as a result of pulpits on the day of treatment were selected...
October 2015: Journal of the Indian Society of Pedodontics and Preventive Dentistry
Bhim Prakash Khatri, Tribikram Bhattarai, Sangita Shrestha, Jyoti Maharjan
Pectinase enzymes are one of the commercially important enzymes having great potential in various industries especially in food industry. Pectinases accounts for 25 % of global food enzymes produced and their market is increasing day by day. Therefore, the exploration of microorganism with novel characteristics has always been the focus of the research. Microorganism dwelling in unique habitat may possess unique characteristics. As such, a pectinase producing fungus Aspergillus niger strain MCAS2 was isolated from soil of Manaslu Conservation Area (MCA), Gorkha, Nepal...
2015: SpringerPlus
Reza Heidari, Mohammad Rabiee-Faradonbeh, Davood Darban-Sarokhalil, Amirhooshang Alvandi, Narges Abdian, Ehsan Aryan, Neda Soleimani, Abolfazl Gholipour
BACKGROUND: Tuberculosis (TB) is regarded as a health problem worldwide, particularly in developing countries. Mycobacterium tuberculosis (M. tuberculosis) is the cause of this disease. Approximately two billion people worldwide are infected by M. tuberculosis and annually about two million individuals die in consequence. Forty million people are estimated to die because of M. tuberculosis over the next 25 years if the measures for controlling this infection are not extensively developed...
June 2015: Iranian Red Crescent Medical Journal
Kathryn Bush, Jenine Leal, Sumana Fathima, Vincent Li, David Vickers, Linda Chui, Marie Louie, Geoffrey Taylor, Elizabeth Henderson
BACKGROUND: Infection Prevention and Control (IPC) surveillance for incident methicillin-resistant Staphylococcus aureus (MRSA) in hospitalized patients is performed in a complete provincial surveillance network of all acute care facilities in Alberta, Canada. IPC surveillance is centralized using a web-based data entry platform so that each patient is counted only once. All diagnostic laboratories submit the first clinical MRSA isolate associated with a patient without previous MRSA positive clinical cultures in the preceding year to the Provincial Laboratory for Public Health (ProvLab) for molecular typing...
2015: Antimicrobial Resistance and Infection Control
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