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https://www.readbyqxmd.com/read/29223092/treatment-of-dye-wastewater-using-an-ultrasonic-aided-nanoparticle-stacked-activated-carbon-kinetic-and-isotherm-modelling
#1
Ponnusamy Senthil Kumar, Sunita J Varjani, Subburaj Suganya
The present work explains the biosorption of malachite green dye from aquatic systems by nano zero valent iron stacked activated carbon (NZVI-AC), which was prepared by dual surface modification strategy. NZVI-AC was characterized by using FTIR, SEM-EDX, XRD and TGA. NZVI-AC exhibited efficient performance in dye biosorption properties. Experimental variables such as time, pH, dye concentration, temperature and biosorbent dosage influenced Langmuir adsorption capacity of 187.3 mg/g. The present biosorption system was best described by pseudo-first order kinetics...
December 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29223091/comparative-analysis-of-vermicompost-quality-produced-from-rice-straw-and-paper-waste-employing-earthworm-eisenia-fetida-sav
#2
Kavita Sharma, V K Garg
Present study was undertaken to investigate the vermicomposting of two different organic wastes (rice straw and paper waste) employing, Eisenia fetida. Nine feedstocks were prepared with different ratios of wastes using cow dung as bulking substrate. After pre-composting, worms were allowed to feed on different feedstocks for 105 days under laboratory conditions. The results showed that NPK content was higher in the vermicompost. Heavy metal content was also higher in the vermicomposts. Whereas total organic carbon and C:N ratio were lower after vermicomposting, by 17...
December 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29222926/depressive-personality-vulnerability-in-chronic-physical-pain-centrality-of-sociotropy
#3
Golan Shahar, Sheera F Lerman, Maayan Topaz, Silviu Brill, Hadar Shalev, Zvia Rudich
BACKGROUND: Chronic physical pain is one of modern medicine's principal challenges. Recently, there has been a keen research interest in the role of Depressive Personality Vulnerability (DPV) in the course of chronic pain. OBJECTIVE: This is the first attempt to examine the role of three leading DPV dimensions - sociotropy, autonomy, and self-criticism - in chronic pain. METHOD: Chronic pain patients (N = 428) were assessed four times as to their pain, disability, anxious-depression, and pain-based catastrophizing...
December 9, 2017: Journal of Personality
https://www.readbyqxmd.com/read/29222884/development-and-evaluation-of-nutritional-sensory-and-glycemic-properties-of-finger-millet-eleusine-coracana-l-based-food-products
#4
Shanmugam Shobana, Ravi Poovizhi Selvi, Vasudevan Kavitha, Nagamuthu Gayathri, Gunasekaran Geetha, Rajagopal Gayathri, Parthasarthy Vijayalakshmi, K Kandappa Gounder Balasubramaniam, Vaidya Ruchi, Vasudevan Sudha, Ranjit Mohan Anjana, Ranjit Unnikrishnan, Nagappa Gurusiddappa Malleshi, C Jk Henry, Kamala Krishnaswamy, Viswanathan Mohan
BACKGROUND AND OBJECTIVES: Finger millet (Eleusine coracana L.) (FM) is rich in dietary fibre and is therefore expected to elicit a lower glycemic response compared to other grains. However, there is little data on the glycemic properties of FM-based products. We evaluated the nutritional, sensory and glycemic properties of decorticated millet with lower polish (DFM-LDP), flakes (FMF), vermicelli (FMV) and extruded snack (FMES) (both FMV and FMES with 7-8% added soluble fibre). METHODS AND STUDY DESIGN: The nutrient contents of the FM products were evaluated by standard AOAC (Association of Official Analytical Chemists) and AACC (American Association of Cereal Chemists) methods...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29222659/municipal-solid-waste-compost-as-a-novel-sorbent-for-antimony-v-adsorption-and-release-trials-at-acidic-ph
#5
Stefania Diquattro, Giovanni Garau, Gian Paolo Lauro, Margherita Silvetti, Salvatore Deiana, Paola Castaldi
The ability of two municipal solid waste composts (MSW-Cs) to sorb antimony(V) in acidic conditions (pH 4.5) was investigated. Sorption isotherms and kinetics showed that both MSW-Cs could sorb antimony(V), even if in different amounts (~ 0.18 and 0.24 mmol g-1 of Sb(V) by MSW-C1 and MSW-C2, respectively). These differences were ascribed to the chemical composition of composts, as well as to the total acidity of their humic substances. The Sb(V) sorption by both MSW-Cs followed a pseudo-second-order kinetic model, while the sorption isotherms data fitted the Freundlich model better than the Langmuir one...
December 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29222025/preparation-and-comparison-of-tacrolimus-loaded-solid-dispersion-and-self-microemulsifying-drug-delivery-system-by-in-vitro-in-vivo-evaluation
#6
Taotao Huo, Chun Tao, Minxin Zhang, Qinghong Liu, Bing Lin, Zhihong Liu, Jialiang Zhang, Meijing Zhang, Haiyue Yang, Jue Wu, Xinrong Sun, Qian Zhang, Hongtao Song
This study aimed to compare the dissolution and the intestinal absorption of tacrolimus in self-microemulsifying drug delivery system (SMEDDS) and solid dispersion (SD). Poloxamer 188 SD was prepared by the combination of the solvent evaporation method and the freeze drying method. Hydroxypropyl methylcellulose (HPMC) SD was prepared by the solvent evaporation method combined with the vacuum drying method. The formation of SD was confirmed by SEM images which showed new solid phases. The SMEDDS was composed of oil (Labrafil M1944 CS 28%), surfactant (Cremophor EL 48%) and co-surfactant (Transcutol P 24%)...
December 5, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29222019/a-novel-use-of-cellulose-based-filter-paper-containing-silver-nanoparticles-for-its-potential-application-as-wound-dressing-agent
#7
Adnan Haider, Sajjad Haider, Inn-Kyu Kang, Anuj Kumar, Madhusudana Rao Kummara, Tahseen Kamal, Sung Soo Han
The frequent use of antibiotics against microbial infections may lead the emergence of antibiotic resistant microbial strains. To overcome these microbial strains, we need to fabricate alternative materials which can handle them. It is for this reason, we have fabricated cellulose (CE) based filter paper (FP) composite scaffolds comprising of adsorbed chitosan (CS) and sliver (Ag) nanoparticles (NPs). The AgNPs are incorporated in the CS layer of the composite scaffold. Prior to evaluate the efficacy of the scaffolds against gram positive and gram negative bacterial strains, the scaffolds were characterized for the presence of the Ag NPs with field emission scanning electron microscope (FE-SEM), fourier transform infrared (FTIR) spectroscopy and x-ray diffractometer (XRD)...
December 5, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29221930/in-vitro-effect-of-chrysosporium-indicum-and-chrysosporium-keratinophylum-on-toxocara-canis-eggs
#8
María V Bojanich, Juan A Basualdo, Gustavo Giusiano
The degree of antagonism exercised by fungi on geohelminth development varies according to the morphological alterations caused by different fungal species. Saprophytic fungi may exert ovicidal or ovistatic effects. The aim of this study was to apply scanning electron microscopy (SEM) to observe the action of two soil saprophytic species of Chrysosporium (C. indicum and C. keratinophylum) on Toxocara canis eggs. The fungal strains to be tested were incubated for 28 days at 28°C in 2% water agar with a suspension of unembryonated T...
December 5, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29221871/investigation-on-paper-cup-waste-degradation-by-bacterial-consortium-and-eudrillus-eugeinea-through-vermicomposting
#9
Karthika Arumugam, Seenivasagan Renganathan, Babalola Olubukola Oluranti, Vasanthy Muthunarayanan
Disposable Paper cups are a threat to the environment and are composed of 90% high strength paper with 5% thin coating of polyethylene. This polyethylene prevents the paper cup from undergoing degradation in the soil. Hence, in the present study two different approaches towards the management of paper cup waste through vermicomposting technology has been presented. The experimental setup includes 2 plastic reactors namely Vermicompost (VC) (Cow dung + Paper cup waste + Earthworm (Eudrillus eugeinea)) and Vermicompost with bacterial consortium (VCB) (Cow dung + Paper cup waste + Eudrillus eugeinea + Microbial consortia such as Bacillus anthracis, B...
December 5, 2017: Waste Management
https://www.readbyqxmd.com/read/29221868/influence-of-hydrogen-bond-accepting-ability-of-anions-on-the-adsorption-performance-of-ionic-liquid-surface-molecularly-imprinted-polymers
#10
Guifen Zhu, Xia Gao, Xiaolong Wang, Jianji Wang, Jing Fan
To illuminate the influence mechanism of anionic structure of ionic liquids (ILs) on the adsorption performance of surface molecularly imprinted polymers (MIPs), in this work, six newly designed MIPs were prepared on the surface of amino-poly(styrene-divinylbenzene) particles by using imidazolium ILs with the same cation [C4mim]+ but different anions (Cl, CH3SO3, PF6, BF4, C4F7O2, C4F9SO3) as template molecules, methacrylic acid as functional monomer, and ethylene dimethacrylate as cross-linker. The resulting MIP materials were characterized by IR and SEM, and the influence of hydrogen bond accepting ability of anions on the adsorption performance of the MIPs for the ILs was investigated in acetonitrile...
November 26, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29221797/evaluation-of-dose-dependent-antimicrobial-activity-of-self-assembled-chitosan-nano-silver-and-chitosan-nano-silver-composite-against-several-pathogens
#11
Foysal Kabir Tareq, Mst Fayzunnesa, Md Shahariar Kabir, Musrat Nuzat
The aim of this investigation to preparation of silver nanoparticles organized chitosan nano polymer, which effective against microbial and pathogens, when apply to liquid medium and edible food products surface, will rescue the growth of microbes. Self-assembly approach used to synthesis of silver nanoparticles and silver nanoparticles organized chitosan nano polymer. Silver nanoparticles and silver nanoparticles organized chitosan nano polymer and film characterized using Ultra-violate visible spectrometer (UV-vis), X-ray diffraction (X-ray), and Scanning electronic microscope (SEM)...
December 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29221472/odontoblast-like-differentiation-and-mineral-formation-of-pulpsphere-derived-cells-on-human-root-canal-dentin-in-vitro
#12
Jörg Neunzehn, Sandra Pötschke, Christian Hannig, Hans-Peter Wiesmann, Marie-Theres Weber
BACKGROUND: The revitalization or regeneration of the dental pulp is a preferable goal in current endodontic research. In this study, human dental pulp cell (DPC) spheres were applied to human root canal samples to evaluate their potential adoption for physiological tissue-like regeneration of the dental root canal by odontoblastic differentiation as well as cell-induced mineral formation. METHODS: DPC were cultivated into three-dimensional cell spheres and seeded on human root canal specimens...
December 8, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/29220807/characterization-of-leaf-waste-based-biochar-for-cost-effective-hydrogen-sulphide-removal-from-biogas
#13
Shivali Sahota, Virendra Kumar Vijay, P M V Subbarao, Ram Chandra, Pooja Ghosh, Goldy Shah, Rimika Kapoor, Vandit Vijay, Vaibhav Koutu, Indu Shekhar Thakur
Installation of decentralized units for biogas production along with indigenous upgradation systems can be an effective approach to meet growing energy demands of the rural population. Therefore, readily available leaf waste was used to prepare biochar at different temperatures and employed for H2S removal from biogas produced via anaerobic digestion plant. It is found that biochar prepared via carbonization of leaf waste at 400 °C effectively removes 84.2% H2S (from 1254 ppm to 201 ppm) from raw biogas for 25 min in a continuous adsorption tower...
November 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29220683/psychological-pathway-to-suicidal-ideation-among-people-living-with-hiv-aids-in-china-a-structural-equation-model
#14
Wei Wang, Yuanyuan Wang, Chenchang Xiao, Xing Yao, Yinmei Yang, Hong Yan, Shiyue Li
People living with HIV/AIDS (PLWHA) have higher rates of suicide than does the general population. It is critical to interpret the intricate relationships among various psychological variables that increase the risk of suicidal ideation among PLWHA in China. An institutional based cross-sectional study was conducted from Jul to Aug 2016 in Nanjing, China, using a self-reporting questionnaire. A total of 465 PLWHA participated. Sociodemographic, psychological variables and suicide information about the participants were collected...
November 29, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29220379/zebrafish-skeleton-development-high-resolution-micro-ct-and-fib-sem-block-surface-serial-imaging-for-phenotype-identification
#15
Jeremie Silvent, Anat Akiva, Vlad Brumfeld, Natalie Reznikov, Katya Rechav, Karina Yaniv, Lia Addadi, Steve Weiner
Although bone is one of the most studied living materials, many questions about the manner in which bones form remain unresolved, including fine details of the skeletal structure during development. In this study, we monitored skeleton development of zebrafish larvae, using calcein fluorescence, high-resolution micro-CT 3D images and FIB-SEM in the block surface serial imaging mode. We compared calcein staining of the skeletons of the wild type and nacre mutants, which are transparent zebrafish, with micro-CT for the first 30 days post fertilization embryos, and identified significant differences...
2017: PloS One
https://www.readbyqxmd.com/read/29220310/direct-and-indirect-relationships-of-physical-fitness-weight-status-and-learning-duration-to-academic-performance-in-japanese-schoolchildren
#16
Toru Ishihara, Noriteru Morita, Toshihiro Nakajima, Koichi Okita, Koji Yamatsu, Masato Sagawa
The purpose of this study was to determine, using structural equation modelling (SEM), the direct and indirect influence of daily behaviours (i.e. exercise/learning durations), weight status, and physical fitness on academic performance among seventh-grade schoolchildren, after controlling for socioeconomic status. We analysed cross-sectional data from 274 schoolchildren (159 males and 115 females; 12-13 years old). Academic performance was assessed using the total grade points in eight academic subjects. Physical fitness was evaluated using the total score of eight physical fitness tests and weight status using body mass index...
December 8, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29220049/unprecedented-nh2-mil-101-al-n-bu4nbr-system-as-solvent-free-heterogeneous-catalyst-for-efficient-synthesis-of-cyclic-carbonates-via-co2-cycloaddition
#17
S Senthilkumar, Minaxi S Maru, R S Somani, H C Bajaj, Subhadip Neogi
Amine-functionalised framework NH2-MIL-101(Al) was synthesized using a solvothermal and microwave method and characterized by PXRD, FT-IR, TGA, SEM-EDX, and BET surface area analysis. The desolvated framework, in the presence of co-catalyst tetrabutylammonium bromide (TBAB), acted as an excellent heterogeneous catalyst for the solvent-free cycloaddition of carbon dioxide (CO2) with epoxides, affording five-membered cyclic carbonates. Using styrene oxide, the NH2-MIL-101(Al)/TBAB system showed more than 99% conversion, affording 96% yield and 99% selectivity with a turn over frequency of 23...
December 8, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29219743/building-a-polysaccharide-hydrogel-capsule-delivery-system-for-control-release-of-ibuprofen
#18
Zhi Chen, Ting Wang, Qing Yan
Development of a delivery system which can effectively carry hydrophobic drugs and have pH response is becoming necessary. Here we demonstrate that through preparation of β-cyclodextrin polymer (β-CDP), a hydrophobic drug molecule of ibuprofen (IBU) was incorporated into our prepared β-CDP inner cavities, aiming to improve the poor water solubility of IBU. A core-shell capsule structure has been designed for achieving the drug pH targeted and sustained release. This delivery system was built with polysaccharide polymer of Sodium alginate (SA), sodium carboxymethylcellulose (CMC) and hydroxyethyl cellulose (HEC) by physical cross-linking...
December 8, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29218856/preparation-of-fluoride-loaded-microcapsules-for-anticariogenic-bacterial-growth-using-a-coaxial-ultrasonic-atomizer
#19
Hae-Won Choi, Seung-Hoon Um, Sang-Hoon Rhee
A new method to deliver fluoride using biodegradable poly(lactic-co-glycolic acid) microcapsules to suppress cariogenic bacterial growth during orthodontic treatment was investigated. A coaxial ultrasonic atomizer was used to encapsulate KF solution into microcapsules. The orthodontic adhesive resin disk containing fluoride loaded microcapsules (DFLM) was prepared by LED light curing. The microstructure of microcapsules, successful loading of KF, fracture strength, and shear bonding strength were assessed by FE-SEM, confocal laser scanning microscope, and general purpose testing machine, respectively...
January 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29218578/biomimetic-synthesis-of-silver-nanoparticles-using-flower-extract-of-bauhinia-purpurea-and-its-antibacterial-activity-against-clinical-pathogens
#20
Sudhakar Chinnappan, Selvam Kandasamy, Sengottaiyan Arumugam, Kamala-Kannan Seralathan, Selvankumar Thangaswamy, Govarthanan Muthusamy
In the present study, we have reported an eco-friendly, rapid, and simple method for the synthesis of silver nanoparticles (AgNPs) using Bauhinia purpurea flower extract as non-toxic bioreducing agent. The formation of AgNPs was confirmed by UV-visible spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The synthesized AgNPs were spherical in shape with an average size of 20 nm...
December 7, 2017: Environmental Science and Pollution Research International
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