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https://www.readbyqxmd.com/read/28088121/synthesis-of-ctab-intercalated-graphene-and-its-application-for-the-adsorption-of-ar265-and-ao7-dyes-from-water
#1
Mohammed Yusuf, Moonis Ali Khan, Marta Otero, E C Abdullah, Masaaki Hosomi, Akihiko Terada, Shohei Riya
Environmental applications of graphene (GN) are limited by the occurrence of aggregation. Herein, graphene oxide (GO) was synthesized, reduced to GN by ascorbic acid, and intercalated with cetyltrimethylammonium bromide (CTAB). GN-CTAB was characterized by Boehm's titration, N2 adsorption/desorption, Fourier transform infrared spectroscopy, Raman spectroscopy, Fluorescence spectrophotometry, X-ray diffraction and Scanning electron microscopy. Then, GN-CTAB was used for the adsorptive removal of acid red 265 (AR265) and acid orange 7 (AO7) dyes from water both under batch and column operation...
January 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088021/sanguinarine-induced-oxidative-stress-and-apoptosis-like-programmed-cell-death-al-pcd-in-root-meristem-cells-of-allium-cepa
#2
Aneta Żabka, Konrad Winnicki, Justyna Teresa Polit, Janusz Maszewski
A vast number of studies on plant cell systems clearly indicate that various biotic and abiotic stresses give rise to the uncontrolled increase in the level of reactive oxygen species (ROS). Excess concentrations of ROS result in damage to proteins, lipids, carbohydrates, and DNA, which may lead, in consequence, to the apoptotic cell death. The current study investigates the effects of sanguinarine (SAN), a natural alkaloid derived from the roots of Sanguinaria canadensis, on root apical meristem cells of Allium cepa...
January 4, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28086783/de-novo-transcriptome-analysis-of-rose-scented-geranium-provides-insights-into-the-metabolic-specificity-of-terpene-and-tartaric-acid-biosynthesis
#3
Lokesh K Narnoliya, Girija Kaushal, Sudhir P Singh, Rajender S Sangwan
BACKGROUND: Rose-scented geranium (Pelargonium sp.) is a perennial herb that produces a high value essential oil of fragrant significance due to the characteristic compositional blend of rose-oxide and acyclic monoterpenoids in foliage. Recently, the plant has also been shown to produce tartaric acid in leaf tissues. Rose-scented geranium represents top-tier cash crop in terms of economic returns and significance of the plant and plant products. However, there has hardly been any study on its metabolism and functional genomics, nor any genomic expression dataset resource is available in public domain...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28081489/protective-effect-of-chitosan-on-photosynthesis-and-antioxidative-defense-system-in-edible-rape-brassica-rapa-l-in-the-presence-of-cadmium
#4
Haiying Zong, Song Liu, Ronge Xing, Xiaolin Chen, Pengcheng Li
Chitosan (CTS) induces plant tolerance against several abiotic stresses, including salinity and drought exposure. However, the role of CTS in cadmium (Cd)-induced stress amelioration is largely unknown. In the present study, a hydroponic pot experiment was conducted to study the roles of CTS with different molecular weight (Mw) (10kDa,5kDa and 1kDa) in alleviating Cd toxicity in edible rape (Brassica rapa L .). The results showed that Cd stress significantly decreased plant growth, leaf chlorophyll contents and increased the malondialdehyde (MDA) level in rape leaves...
January 9, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28081000/on-the-development-of-a-vipar-nd-radiotherapy-3d-polymer-gel-dosimeter
#5
Marek Kozicki, Malwina Jaszczak, Piotr Maras, Mariusz Dudek, Marian Cłapa
This work presents an improvement of the VIPAR(nd) ('nd' stands for 'normoxic, double', or VIP) polymer gel dosimeter. The gel composition was altered by increasing the concentration of the monomeric components, N-vinylpyrrolidone (NVP) and N,N'-methylenebisacrylamide (MBA), in co-solvent solutions. The optimal composition (VIPAR(CT), where 'CT' stands for computed tomography, or VIC) comprised: 17% NVP, 8% MBA, 12% t-BuOH, 7.5% gelatine, 0.007% ascorbic acid, 0.0008% CuSO4  ×  5H2O and 0.02% hydroquinone...
January 12, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28078984/rasburicase-induced-methemoglobinemia-in-a-patient-with-glucose-6-phosphate-dehydrogenase-deficiency
#6
Maliha Khan, Shilpa Paul, Saad Farooq, Thein Hlaing Oo, Priya Ramshesh, Nitin Jain
BACKGROUND: Rasburicase is commonly used in patients with hematologic malignancies for tumor lysis syndrome prophylaxis and management. Methemoglobinemia is a serious rare adverse effect of rasburicase, more common in patients with G6PD deficiency. Prompt diagnosis and appropriate management of this condition can make the difference between successful recovery and significant morbidity. Here we discuss the link of rasburicase with methemoglobinemia and the pathophysiology behind increased incidence of this side effect in G6PD deficient patients...
January 11, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28077287/iron-oxide-nanoparticles-modulate-heat-shock-proteins-and-organ-specific-markers-expression-in-mice-male-accessory-organs
#7
Kiruthika Sundarraj, Azhwar Raghunath, Lakshmikanthan Panneerselvam, Ekambaram Perumal
With increased industrial utilization of iron oxide nanoparticles (Fe2O3-NPs), concerns on adverse reproductive health effects following exposure have been immensely raised. In the present study, the effects of Fe2O3-NPs exposure in the seminal vesicle and prostate gland were studied in mice. Mice were exposed to two different doses (25 and 50 mg/kg) of Fe2O3-NPs along with the control and analyzed the expressions of heat shock proteins (HSP60, HSP70 and HSP90) and organ specific markers (Caltrin, PSP94, and SSLP1)...
January 7, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28074795/comparative-effect-of-grape-seed-extract-vitis-vinifera-and-ascorbic-acid-in-oxidative-stress-induced-by-on-pump-coronary-artery-bypass-surgery
#8
Naser Safaei, Hossein Babaei, Rasoul Azarfarin, Ahmad-Reza Jodati, Alireza Yaghoubi, Mohammad-Ali Sheikhalizadeh
BACKGROUND: This study aimed to test the beneficial effect of grape seed extract (GSE) (Vitis vinifera) and Vitamin C in oxidative stress and reperfusion injury induced by cardiopulmonary bypass (CPB) in coronary artery bypass surgery. PATIENTS AND METHODS: In this randomized trial, 87 patients undergoing elective and isolated coronary bypass surgery included. The patients were randomly assigned into three groups (n = 29 each): (1) Control group with no treatment, (2) GSE group who received the extract 24 h before operation, 100 mg every 6 h, orally, (3) Vitamin C group who received 25 mg/kg Vitamin C through CPB during surgery...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28073081/antibacterial-effect-of-405%C3%A2-5nm-light-emitting-diode-illumination-against-escherichia-coli-o157-h7-listeria-monocytogenes-and-salmonella-on-the-surface-of-fresh-cut-mango-and-its-influence-on-fruit-quality
#9
Min-Jeong Kim, Chee Hwa Tang, Woo Suk Bang, Hyun-Gyun Yuk
To investigate a potential of 405±5nm light emitting diode (LED) as a novel technology for food preservation, the antibacterial effect of 405±5nm LED on Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella spp. on the surface of fresh-cut mango and its influence on fruit quality were evaluated at different storage temperatures. LED-illumination inactivated 1.0-1.6 logCFU/cm(2) of populations at 4 and 10°C for 36-48h (total dose, 2.6-3.5kJ/cm(2)) regardless of bacterial species, while those on non-illuminated mange remained unchanged or slightly increased during storage...
December 30, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28071004/influence-of-freezing-and-storing-cherry-fruit-on-its-nutritional-value
#10
Elena Vasylyshyna
BACKGROUND: Cherries are a valuable dietary raw material and possess medicinal properties. Considering the nutritional, medical and vitamin value of cherry fruits, the purpose of this research was to produce a scientific justification for preserving the quality of cherry fruits using different freezing methods. METHODS: To do this, cherry fruits from the Lotovka (Cerasus vulgaris) variety were frozen in various ways: packed in polyethylene bags (control); previously suspended in a 20% sugar solution and packing frozen cherry in polyethylene bags; suspended in a 20% sugar solution with the addition of 4% ascorutin and frozen followed by pre-packaging in polyethylene bags; cherry fruits were frozen in a 20% sugar solution in plastic cups of 0...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28070585/effect-of-proline-on-biochemical-and-molecular-mechanisms-in-lettuce-lactuca-sativa-l-exposed-to-uv-b-radiation
#11
Ozkan Aksakal, Dilruba Tabay, Aslıhan Esringu, Feyza Icoglu Aksakal, Nevzat Esim
The purpose of the present study was to evaluate the role of proline (Pro) in relieving UV-B radiation-induced oxidative stress in lettuce. Lettuce seedlings were exposed to 3.3 W m(-2) UV-B radiation for 12 h after pre-treatment sprayed with 20 mM Pro. The data for malondialdehyde (MDA), hydrogen peroxide (H2O2), endogenous Pro level, the activities of antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD)], total phenolic concentration, antioxidant capacity, expression of phenylalanine ammonia lyase (PAL), γ-tocopherol methyltransferase (γ-TMT) and proline dehydrogenase (ProDH) genes, phytohormone levels such as abscisic acid (ABA), gibberellic acid (GA), indole acetic acid (IAA) and salicylic acid (SA), soluble sugars and organic acids were recorded...
January 10, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28069238/low-intensity-ultrasound-as-a-pretreatment-to-drying-of-daylilies-impact-on-enzyme-inactivation-color-changes-and-nutrition-quality-parameters
#12
Zhongyuan Zhang, Liying Niu, Dajing Li, Chunquan Liu, Rui Ma, Jiangfeng Song, Jiangtao Zhao
Effects of thermal and low intensity ultrasound combined with heat (LIUH) pretreatment prior to microwave vacuum drying on enzyme inactivation, color changes and nutrition quality properties of dried daylilies were investigated. The peroxidase (POD), ascorbic acid oxidase (AAO) and polyphenoloxidase (PPO) thermal and LIUH (0.2 and 0.4W/cm(2)) inactivation were determined and compared at 70, 80 and 90°C. Significant reduction in the POD, AAO and PPO activity was seen in daylilies after an ambient LIUH pretreatment than thermal pretreatment...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28068598/novel-flavonolignan-hybrid-antioxidants-from-enzymatic-preparation-to-molecular-rationalization
#13
Eva Vavříková, Vladimír Křen, Lubica Jezova-Kalachova, Michal Biler, Benjamin Chantemargue, Michaela Pyszková, Sergio Riva, Marek Kuzma, Kateřina Valentová, Jitka Ulrichová, Jiří Vrba, Patrick Trouillas, Jan Vacek
A series of antioxidants was designed and synthesized based on conjugation of the hepatoprotective flavonolignan silybin with l-ascorbic acid, trolox alcohol or tyrosol via a C12 aliphatic linker. These hybrid molecules were prepared from 12-vinyl dodecanedioate-23-O-silybin using the enzymatic regioselective acylation procedure with Novozym 435 (lipase B) or with lipase PS. Voltammetric analyses showed that the silybin-ascorbic acid conjugate exhibited excellent electron donating ability, in comparison to the other conjugates...
December 26, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28067231/multiomics-reveal-non-alcoholic-fatty-liver-disease-in-rats-following-chronic-exposure-to-an-ultra-low-dose-of-roundup-herbicide
#14
Robin Mesnage, George Renney, Gilles-Eric Séralini, Malcolm Ward, Michael N Antoniou
The impairment of liver function by low environmentally relevant doses of glyphosate-based herbicides (GBH) is still a debatable and unresolved matter. Previously we have shown that rats administered for 2 years with 0.1 ppb (50 ng/L glyphosate equivalent dilution; 4 ng/kg body weight/day daily intake) of a Roundup GBH formulation showed signs of enhanced liver injury as indicated by anatomorphological, blood/urine biochemical changes and transcriptome profiling. Here we present a multiomic study combining metabolome and proteome liver analyses to obtain further insight into the Roundup-induced pathology...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067055/chemical-composition-and-antioxidant-activity-of-essential-oil-from-leaves-and-rhizomes-of-curcuma-angustifolia-roxb
#15
Sudipta Jena, Asit Ray, Anwesha Banerjee, Ambika Sahoo, Noohi Nasim, Suprava Sahoo, Basudeba Kar, Jeetendranath Patnaik, Pratap Chandra Panda, Sanghamitra Nayak
The essential oil extracted from rhizome and leaf of Curcuma angustifolia Roxb. (Zingiberaceae) was characterised by gas chromatography-mass spectrometry (GC-MS). The GC-MS analysis revealed the presence of 32 and 35 identified constituents, comprising 92.6% and 92% of total leaf and rhizome oil, respectively. Curzerenone (33.2%), 14-hydroxy-δ-cadinene (18.6%) and γ-eudesmol acetate (7.3%) were the main components in leaf oil. In rhizome oil, curzerenone (72.6%), camphor (3.3%) and germacrone (3.3%) were found to be the major constituents...
January 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28067036/synthetically-tuned-atomic-ordering-in-pdcu-nanoparticles-with-enhanced-catalytic-activity-towards-solvent-free-benzylamine-oxidation
#16
Vijaykumar S Marakatti, Saurav Ch Sarma, Boby Joseph, Dipanjan Banerjee, Sebastian C Peter
Synthesis of ordered compounds with nano size is of particular interest for tuning the surface properties with enhanced activity and selectivity towards various important industrial catalytic processes. In this work, we have synthesized ordered PdCu nanoparticles as highly efficient catalyst for the solvent free aerobic oxidation of benzylamine. The PdxCu1-x catalysts with different chemical compositions (x = 0, 0.25, 0.4, 0.5, 0.6, 0.75, 1) were prepared by polyol method using NaBH4 as a reducing agent and were well characterized by XRD, ICP-OES, XPS, TEM-EDAX and XAFS...
January 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28065834/nanosecond-pulsed-electric-fields-trigger-cell-differentiation-in-chlamydomonas-reinhardtii
#17
Fan Bai, Christian Gusbeth, Wolfgang Frey, Peter Nick
Nanosecond pulsed electric fields (nsPEFs) have great potential for biotechnological and medical applications. However, the biological mechanisms causing the cellular responses are still far from understood. We used the unicellular green algae Chlamydomonas reinhardtii as experimental model to dissect the immediate consequences of electroporation from the developmental cellular responses evoked by nsPEFs. We observe that nsPEFs induce a short-term permeabilization of the membrane, accompanied by swelling and oxidative burst...
January 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28063510/converting-citrus-wastes-into-value-added-products-economic-and-environmently-friendly-approaches
#18
REVIEW
Kavita Sharma, Neelima Mahato, Moo Hwan Cho, Yong Rok Lee
Citrus fruits, including oranges, grapefruits, lemons, limes, tangerines, and mandarins, are among the most widely cultivated fruits around the globe. Its production is increasing every year due to rising consumer demand. Citrus-processing industries generate huge amounts of wastes every year, and citrus peel waste alone accounts for almost 50% of the wet fruit mass. Citrus waste is of immense economic value as it contains an abundance of various flavonoids, carotenoids, dietary fiber, sugars, polyphenols, essential oils, and ascorbic acid, as well as considerable amounts of some trace elements...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28061745/large-scale-transcriptome-comparison-of-sunflower-genes-responsive-to-verticillium-dahliae
#19
Shuchun Guo, Yongchun Zuo, Yanfang Zhang, Chengyan Wu, Wenxia Su, Wen Jin, Haifeng Yu, Yulin An, Qianzhong Li
BACKGROUND: Sunflower Verticillium wilt (SVW) is a vascular disease caused by root infection with Verticillium dahliae (V. dahlia). It is a serious threat to the yield and quality of sunflower. However, chemical and agronomic measures for controlling this disease are not effective. The selection of more resistant genotypes is a desirable strategy to reduce contamination. A deeper knowledge of the molecular mechanisms and genetic basis underlying sunflower Verticillium wilt is necessary to accelerate breeding progress...
January 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28061409/air-pollution-tolerance-index-of-plants-around-brick-kilns-in-rawalpindi-pakistan
#20
Khanoranga Achakzai, Sofia Khalid, Muhammad Adrees, Aasma Bibi, Shafaqat Ali, Rab Nawaz, Muhammad Rizwan
In any contaminated environment, the sensitive plant species can serve as bio-indicator of air pollution while tolerant plant species can act as a sink for air pollutants. Air pollution tolerance index (APTI) is an important tool to screen out plants based on their tolerance or sensitivity level to different air pollutants. The present study was aimed to identify the sensitive and tolerant plant species in the vicinity of brick kilns in the Rawalpindi city. To determine the susceptibility level of the selected plant species, four biochemical parameters, ascorbic acid, total chlorophyll content, relative water content and pH of leaf extract, were assessed and APTI was calculated...
January 3, 2017: Journal of Environmental Management
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