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https://www.readbyqxmd.com/read/27914339/burstable-nanostructured-micro-raspberries-towards-redispersible-nanoparticles-from-dry-powders
#1
Claudia Stauch, Thomas Ballweg, Werner Stracke, Robert Luxenhofer, Karl Mandel
Despite immense progress in nanoscience and technology, one of the yet unsolved challenges is the redispersion of nanoparticles from dry powders back to the individual, primary particles. Herein, an easy to handle powder consisting of nanostructured micron sized raspberry-like particles is presented. These nanostructured micro-raspberries are composed of individual nanoparticles which are equipped with molecules that introduce a separating effect or "spring" functionality. Thereby, a powder system is obtained that allows for an easy and complete redispersibility of the agglomerates down to the level of individual nanoparticles in solvents and polymers...
November 17, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27914323/quantitative-farm-to-fork-human-norovirus-exposure-assessment-of-individually-quick-frozen-raspberries-and-raspberry-puree
#2
L Jacxsens, A Stals, A De Keuckelaere, B Deliens, A Rajkovic, M Uyttendaele
A quantitative human norovirus (NoV) exposure model describing transmission of NoV during pre-harvest, harvest and further processing of soft red fruits exemplified by raspberries is presented. The outcomes of the model demonstrate the presence of NoV in raspberry puree or individual quick frozen (IQF) raspberry fruits and were generated by Monte Carlo simulations by combining GoldSim® and @Risk® software. Input data were collected from scientific literature, observational studies and assumptions. NoV contamination of soft red fruits is assumed to take place at farms by application of contaminated water for pesticides dilution or by berries' pickers shedding NoV...
November 21, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27910971/synthesis-engineering-of-iron-oxide-raspberry-shaped-nanostructures
#3
O Gerber, B P Pichon, D Ihiawakrim, I Florea, S Moldovan, O Ersen, D Begin, J-M Grenèche, S Lemonnier, E Barraud, S Begin-Colin
Magnetic porous nanostructures consisting of oriented aggregates of iron oxide nanocrystals display very interesting properties such as a lower oxidation state of magnetite, and enhanced saturation magnetization in comparison with individual nanoparticles of similar sizes and porosity. However, the formation mechanism of these promising nanostructures is not well understood, which hampers the fine tuning of their magnetic properties, for instance by doping them with other elements. Therefore the formation mechanism of porous raspberry shaped nanostructures (RSNs) synthesized by a one-pot polyol solvothermal method has been investigated in detail from the early stages by using a wide panel of characterization techniques, and especially by performing original in situ HR-TEM studies in temperature...
December 2, 2016: Nanoscale
https://www.readbyqxmd.com/read/27904414/near-infrared-spectroscopic-analysis-of-total-phenolic-content-and-antioxidant-activity-of-berry-fruits
#4
Jasenka Gajdoš Kljusurić, Kiril Mihalev, Ivana Bečić, Ivana Polović, Mariya Georgieva, Senka Djaković, Želimir Kurtanjek
This study evaluates the feasibility of using near-infrared (NIR) spectroscopy as a rapid and environmentally friendly technique for validation and prediction of the total phenolic content (TPC) and antioxidant activity (AOA) indices (as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, inhibition time (IT) of the Briggs-Rauscher oscillating reaction, and relative antioxidant capacity (RAC)) of berry fruit extracts. The analysed berry samples originated from Croatia (blackberries, wild blueberries, raspberries, red currants and strawberries) and Bulgaria (wild blueberries, raspberries and strawberries)...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27904404/phenolic-composition-antioxidant-capacity-and-in-vitro-cytotoxicity-assessment-of-fruit-wines
#5
Ana Ljevar, Natka Ćurko, Marina Tomašević, Kristina Radošević, Višnja Gaurina Srček, Karin Kovačević Ganić
Fruit wines contain a wide range of phenolic compounds with biological effects, but their composition and potential benefits to human health have been studied to the much lesser extent compared to grape wines. The aim of this research is to study the phenolic profile of different types of fruit wines and to evaluate their antioxidant and biological potential. Commercially available fruit wines from blackberry, cherry, raspberry, blackcurrant, strawberry and apple produced in Croatia were analyzed. To the best of our knowledge, this study represents the first comprehensive screening of Croatian fruit wines...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27899319/cost-effective-raspberry-pi-based-radio-frequency-identification-tagging-of-mice-suitable-for-automated-in-vivo-imaging
#6
Federico Bolaños, Jeff M LeDue, Timothy H Murphy
BACKGROUND: Automation of animal experimentation improves consistency, reduces potential for error while decreasing animal stress and increasing well-being. Radio frequency identification (RFID) tagging can identify individual mice in group housing environments enabling animal-specific tracking of physiological parameters. NEW METHOD: We describe a simple protocol to radio frequency identification (RFID) tag and detect mice. RFID tags were injected sub-cutaneously after brief isoflurane anesthesia and do not require surgical steps such as suturing or incisions...
November 26, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27898002/design-of-a-solar-tracking-system-using-the-brightest-region-in-the-sky-image-sensor
#7
Ching-Chuan Wei, Yu-Chang Song, Chia-Chi Chang, Chuan-Bi Lin
Solar energy is certainly an energy source worth exploring and utilizing because of the environmental protection it offers. However, the conversion efficiency of solar energy is still low. If the photovoltaic panel perpendicularly tracks the sun, the solar energy conversion efficiency will be improved. In this article, we propose an innovative method to track the sun using an image sensor. In our method, it is logical to assume the points of the brightest region in the sky image representing the location of the sun...
November 25, 2016: Sensors
https://www.readbyqxmd.com/read/27894782/transitioning-eeg-experiments-away-from-the-laboratory-using-a-raspberry-pi-2
#8
Jonathan W P Kuziek, Axita Shienh, Kyle E Mathewson
BACKGROUND: Electroencephalography (EEG) experiments are typically performed in controlled laboratory settings to minimise noise and produce reliable measurements. These controlled conditions also reduce the applicability of the obtained results to more varied environments and may limit their relevance to everyday situations. NEW METHOD: Advances in computer portability may increase the mobility and applicability of EEG results while decreasing costs. In this experiment we show that stimulus presentation using a Raspberry Pi 2 computer provides a low cost, reliable alternative to a traditional desktop PC in the administration of EEG experimental tasks...
November 25, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27882762/-the-possibility-of-antepartal-prevention-of-episiotomy-and-perineal-tears-during-delivery
#9
P Bohatá, L Dostálek
OBJECTIVE: To determine the effect of antepartal methods on the prevention of birth injuries in primiparous women. DESIGN: Retrospective study. SETTING: Nemocnice Český Krumlov, a.s. METHODS: Between February 2014 and November 2015 were 315 primiparous women questioned after a vaginal delivery on the use of methods of birth injury prevention (vaginal dilatators EPI-NO and Aniball, perineal massage, natural methods - raspberry-leaf tea or linseed)...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27866157/loss-of-free-fatty-acid-receptor-2-enhances-colonic-adenoma-development-and-reduces-the-chemopreventive-effects-of-black-raspberries-in-apcmin-mice
#10
Pan Pan, Chad W Skaer, Hsin-Tzu Wang, Kiyoko Oshima, Yi-Wen Huang, Jianhua Yu, Jianying Zhang, Martha Yearsley, Kimberle Agle, William Drobyski, Xiao Chen, Li-Shu Wang
We previously showed that black raspberries (BRBs) have beneficial effects in human colorectal cancer and a mouse model of colorectal cancer (Apc(Min/+)). The current study investigated the role of free fatty acid receptor 2 (FFAR2) in colon carcinogenesis and whether the FFAR2 signaling pathway contributes to BRB-mediated chemoprevention in mice. FFAR2 (also named GPR43) is a member of the G-protein-coupled receptor family that is expressed in leukocytes and colon. Apc(Min/+) and Apc(Min/+)-FFAR2(-/-) mice were given a control diet or the control diet supplemented with 5% BRBs for 8 weeks...
November 19, 2016: Carcinogenesis
https://www.readbyqxmd.com/read/27856652/evolution-of-rosaceae-fruit-types-based-on-nuclear-phylogeny-in-the-context-of-geological-times-and-genome-duplication
#11
Yezi Xiang, Chien-Hsun Huang, Yi Hu, Jun Wen, Shisheng Li, Tingshuang Yi, Hongyi Chen, Jun Xiang, Hong Ma
Fruits are the defining feature of angiosperms, likely have contributed to angiosperm successes by protecting and dispersing seeds, and provide foods to humans and other animals, with many morphological types and important ecological and agricultural implications. Rosaceae is a family with ~3000 species and an extraordinary spectrum of distinct fruits, including fleshy peach, apple, and strawberry prized by their consumers, as well as dry achenetum and follicetum with features facilitating seed dispersal, excellent for studying fruit evolution...
November 17, 2016: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/27842844/rheological-and-chemical-properties-of-pectin-enriched-fractions-from-different-sources-extracted-with-citric-acid
#12
Joanna Mierczyńska, Justyna Cybulska, Artur Zdunek
Yield, properties and functionality of pectins depend on the source material and method of extraction. The objective of this work was to compare pectinolytic enzyme activity in fresh pulp as well as the physicochemical and rheological properties of polysaccharides extracted with citric acid from six new potential sources: fruit materials - peach, blackcurrant, raspberry, strawberry, plum and a vegetable Source: carrot. The uronic acid content of polysaccharides extracted in citric acid depended on pectinolytic enzymes activity in fresh plant tissues and ranged between 16...
January 20, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27824754/raspberry-leaf-and-hypoglycemia-in-gestational-diabetes-mellitus
#13
Kai I Cheang, Thanh T Nguyen, Nicole W Karjane, Kelsey E S Salley
BACKGROUND: Raspberry leaf is commonly consumed by pregnant women. Hypoglycemic effects have been documented with other species within the plant family. Whether raspberry leaf affects glycemic control in gestational diabetes mellitus (GDM) is unknown. CASE: A 38-year-old nulliparous woman with GDM developed hypoglycemia requiring lowered insulin dose after consuming raspberry leaf tea at 32 weeks of gestation. The temporal relationship was confirmed by the patient's self-withdrawal and reintroduction of the herb...
December 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27822040/raspberry-like-poly-%C3%AE-glutamic-acid-hydrogel-particles-for-ph-dependent-cell-membrane-passage-and-controlled-cytosolic-delivery-of-antitumor-drugs
#14
Sun-Hee Cho, Ji Hyeon Hong, Young-Woock Noh, Eunji Lee, Chang-Soo Lee, Yong Taik Lim
In this research, we synthesized bioderived poly(amino acid) hydrogel particles that showed pH-dependent membrane-disrupting properties and controlled cytosolic delivery of antitumor drugs. Poly(γ-glutamic acid) (γ-PGA) that has been produced extensively using bacteria, especially those of Bacillus subtilis species, was modified with cholesterol (γ-PGA/Chol), and the γ-PGA/Chol conjugates were used to form polymeric nanoparticles the size of 21.0±1.1 nm in aqueous solution. When the polymeric nanoparticles were mixed with doxorubicin (Dox), raspberry-like hydrogel particles (RBHPs) were formed by the electrostatic interaction between the cationically charged Dox and the anionically charged nanoparticles...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27805403/self-assembly-of-ab-diblock-copolymer-confined-in-a-soft-nano-droplet-a-combination-study-by-monte-carlo-simulation-and-experiment
#15
Nan Yan, Yutian Zhu, Wei Jiang
The self-assembly of AB-type diblock copolymers confined in a three-dimensional (3D) soft nano-droplet is investigated by the combination of Monte Carlo simulation and experiment. The influences of two critical factors, i.e. confinement degree of the imposed confinement space and the interfacial interaction between each individual block and boundary interface, on the 3D soft confined self-assembly are examined systematically. The simulation results reveal that block copolymer chains become more and more folded as the confinement degree (It can be monitored by the ratio of D/L, where L is the length of polymer chain and D is the reduced diameter of the final polymeric particle...
November 2, 2016: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/27782054/ultraviolet-imaging-with-low-cost-smartphone-sensors-development-and-application-of-a-raspberry-pi-based-uv-camera
#16
Thomas C Wilkes, Andrew J S McGonigle, Tom D Pering, Angus J Taggart, Benjamin S White, Robert G Bryant, Jon R Willmott
Here, we report, for what we believe to be the first time, on the modification of a low cost sensor, designed for the smartphone camera market, to develop an ultraviolet (UV) camera system. This was achieved via adaptation of Raspberry Pi cameras, which are based on back-illuminated complementary metal-oxide semiconductor (CMOS) sensors, and we demonstrated the utility of these devices for applications at wavelengths as low as 310 nm, by remotely sensing power station smokestack emissions in this spectral region...
October 6, 2016: Sensors
https://www.readbyqxmd.com/read/27765991/effect-of-application-timing-of-oxamyl-in-nonbearing-raspberry-for-pratylenchus-penetrans-management
#17
Inga A Zasada, Thomas W Walters
In 2012, the Washington raspberry (Rubus idaeus) industry received a special local needs (SLN) 24(c) label to apply Vydate L(®) (active ingredient oxamyl) to nonbearing raspberry for the management of Pratylenchus penetrans. This is a new use pattern of this nematicide for raspberry growers; therefore, research was conducted to identify the optimum spring application timing of oxamyl for the suppression of P. penetrans. Three on-farm trials in each of 2012 and 2013 were established in Washington in newly planted raspberry trials on a range of varieties...
September 2016: Journal of Nematology
https://www.readbyqxmd.com/read/27734999/preparation-of-raspberry-like-%C3%AE-fe2o3-crackled-nitrogen-doped-carbon-capsules-and-their-application-as-supports-to-improve-catalytic-activity
#18
Junshuai Zhang, Tongjie Yao, Hui Zhang, Xiao Zhang, Jie Wu
In this manuscript, we have introduced a novel method to improve the catalytic activity of metal nanoparticles via optimizing the support structure. To this end, raspberry-like γ-Fe2O3/crackled nitrogen-doped carbon (CNC) capsules were prepared by a two-step method. Compared with traditional magnetic capsules, in γ-Fe2O3/CNC capsules, the γ-Fe2O3 nanoparticles were embedded in a CNC shell; therefore, they neither occupied the anchoring sites for metal nanoparticles nor came into contact with them, which was beneficial for increasing the metal nanoparticle loading...
October 13, 2016: Nanoscale
https://www.readbyqxmd.com/read/27718331/ovarian-clear-cell-carcinoma-with-plasma-cell-rich-inflammatory-stroma-cytological-findings-of-a-case
#19
Masayuki Shintaku, Makoto Dohi, Yoshihiro Yamamoto, Aya Nagai, Toshihiro Higuchi
We report a case of clear cell carcinoma (CCC) of the ovary with plasma cell-rich inflammatory stroma, a recently proposed subtype of CCC, and present the cytological findings. The patient was a 48-year-old woman, who was incidentally found to have a right ovarian tumor during the preoperative work-up for an early-stage adenocarcinoma of the uterine cervix. Cytological examination of an imprint smear of the ovarian tumor and peritoneal washing revealed solid cell clusters of irregular, often dendritic shapes, which were intermingled with many inflammatory cells...
October 8, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27696538/black-raspberries-demethylate-sfrp4-a-wnt-pathway-antagonist-in-rat-esophageal-squamous-cell-papilloma
#20
Yi-Wen Huang, Fei Gu, Alan Dombkowski, Li-Shu Wang, Gary D Stoner
Aberrant methylation of DNA is a common event in the development of cancers, including squamous cell carcinoma (SCC) of the human esophagus. In the present study, we determined: (a) whether aberrant DNA methylation also occurs in the development of N-nitrosomethylbenzylamine (NMBA)-induced tumorigenesis in the rat esophagus, a model of human esophageal SCC; and (b) if so, whether dietary black raspberries (BRBs) are capable of preventing this aberrant DNA methylation. A diet containing 5% BRBs inhibited the development of NMBA-induced tumors in the rat esophagus...
November 2016: Molecular Carcinogenesis
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