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https://www.readbyqxmd.com/read/29169120/soybean-peroxidase-immobilized-onto-silica-coated-superparamagnetic-iron-oxide-nanoparticles-effect-of-silica-layer-on-the-enzymatic-activity
#1
Jorge A Donadelli, Fernando S García Einschlag, Enzo Laurenti, Giuliana Magnacca, Luciano Carlos
Peroxidase immobilization onto magnetic supports is considered an innovative strategy for the development of technologies that involves enzymes in wastewater treatment. In this work, magnetic biocatalysts were prepared by immobilization of soybean peroxidase (SBP) onto different silica-coated superparamagnetic iron oxide nanoparticles. The obtained magnetic biocatalysts were tested for the degradation of malachite green (MG), a pollutant often found in industrial wastewaters and with significant drawbacks for the human and environmental health...
November 20, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29163582/deep-learning-for-image-based-cassava-disease-detection
#2
Amanda Ramcharan, Kelsee Baranowski, Peter McCloskey, Babuali Ahmed, James Legg, David P Hughes
Cassava is the third largest source of carbohydrates for human food in the world but is vulnerable to virus diseases, which threaten to destabilize food security in sub-Saharan Africa. Novel methods of cassava disease detection are needed to support improved control which will prevent this crisis. Image recognition offers both a cost effective and scalable technology for disease detection. New deep learning models offer an avenue for this technology to be easily deployed on mobile devices. Using a dataset of cassava disease images taken in the field in Tanzania, we applied transfer learning to train a deep convolutional neural network to identify three diseases and two types of pest damage (or lack thereof)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29149679/innovative-urban-forestry-governance-in-melbourne-investigating-green-placemaking-as-a-nature-based-solution
#3
Natalie Marie Gulsrud, Kelly Hertzog, Ian Shears
A nature-based approach to climate resilience aims to challenge and re-frame conventional environmental management methods by refocusing solutions from technological strategies to socio-ecological principles such as human well-being and community-based governance models, thereby improving and legitimizing the delivery of ecosystem services (ES). There are, however, many challenges to applying a socio-ecological agenda to urban climate resilience and thereby re-framing ES delivery as community and people focused, a knowledge gap extensively outlined in the environmental governance literature...
November 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/29140977/low-cost-and-open-source-multi-fluorescence-imaging-system-for-teaching-and-research-in-biology-and-bioengineering
#4
Isaac Nuñez, Tamara Matute, Roberto Herrera, Juan Keymer, Timothy Marzullo, Timothy Rudge, Fernán Federici
The advent of easy-to-use open source microcontrollers, off-the-shelf electronics and customizable manufacturing technologies has facilitated the development of inexpensive scientific devices and laboratory equipment. In this study, we describe an imaging system that integrates low-cost and open-source hardware, software and genetic resources. The multi-fluorescence imaging system consists of readily available 470 nm LEDs, a Raspberry Pi camera and a set of filters made with low cost acrylics. This device allows imaging in scales ranging from single colonies to entire plates...
2017: PloS One
https://www.readbyqxmd.com/read/29140861/sealing-of-corneal-lacerations-using-photoactivated-rose-bengal-dye-and-amniotic-membrane
#5
Timothy A Soeken, Hong Zhu, Sheri DeMartelaere, Brett W Davies, Mirang Kim, Heuy-Ching Wang, James Aden, Rose Grimm, Clemens Alt, Irene E Kochevar, Anthony J Johnson
PURPOSE: Watertight closure of perforating corneoscleral lacerations is necessary to prevent epithelial ingrowth, infection, and potential loss of the eye. Complex lacerations can be difficult to treat, and repair with sutures alone is often inadequate. In this study, we evaluated a potentially sutureless technology for sealing complex corneal and scleral lacerations that bonds the amniotic membrane (AM) to the wound using only green light and rose bengal dye. METHODS: The AM was impregnated with rose bengal and then sealed over lacerations using green light to bond the AM to the deepithelialized corneal surface...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29140274/an-efficient-approach-for-lipase-catalyzed-synthesis-of-retinyl-laurate-nutraceutical-by-combining-ultrasound-assistance-and-artificial-neural-network-optimization
#6
Shang-Ming Huang, Hsin-Ju Li, Yung-Chuan Liu, Chia-Hung Kuo, Chwen-Jen Shieh
Although retinol is an important nutrient, retinol is highly sensitive to oxidation. At present, some ester forms of retinol are generally used in nutritional supplements because of its stability and bioavailability. However, such esters are commonly synthesized by chemical procedures which are harmful to the environment. Thus, this study utilized a green method using lipase as a catalyst with sonication assistance to produce a retinol derivative named retinyl laurate. Moreover, the process was optimized by an artificial neural network (ANN)...
November 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29136881/monitoring-of-tablet-coating-processes-with-colored-coatings
#7
Shirin Barimani, Peter Kleinebudde
Endpoints of coating processes for colored tablets were determined using in-line Raman spectroscopy. Coatings were performed with six commercially available formulations of pink, yellow, red, beige, green and blue color. The coatings were comprising pigments and/or dyes, some causing fluorescence and interfering the Raman signal. Using non-contact optics, a Raman probe was used as process analytical technology (PAT) tool, and acquired spectra were correlated to the sprayed mass of aqueous coating suspension...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136460/graphitic-nitrogen-triggers-red-fluorescence-in-carbon-dots
#8
Kateřina Holá, Mária Sudolská, Sergii Kalytchuk, Dana Nachtigallová, Andrey L Rogach, Michal Otyepka, Radek Zbořil
Carbon dots (CDs) are a stable and highly biocompatible fluorescent material offering great application potential in cell labeling, optical imaging, LED diodes, and optoelectronic technologies. Because their emission wavelengths provide the best tissue penetration, red-emitting CDs are of particular interest for applications in biomedical technologies. Current synthetic strategies enabling red-shifted emission include increasing the CD particle size (sp(2) domain) by a proper synthetic strategy and tuning the surface chemistry of CDs with suitable functional groups (e...
November 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/29133982/combined-aesthetic-interventions-for-prevention-of-facial-ageing-and-restoration-and-beautification-of-face-and-body
#9
Sabrina Fabi, Tatjana Pavicic, André Braz, Jeremy B Green, Kyle Seo, Jani Aj van Loghem
The Merz Institute of Advanced Aesthetics Expert Summit was held in Prague, Czech Republic, from 19-20 November 2016. The meeting had a distinct advisory board character and invited aesthetic practitioners from all over the world to hear an international faculty present a range of keynote lectures and conduct live injection sessions with an emphasis on recent developments in combination aesthetic interventions for face and body rejuvenation and beautification. Aging is associated with changes in bones, muscles, ligaments, adipose tissue, and skin and, moreover, involves interactions among these tissue types...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/29129910/thermostable-exoshells-fold-and-stabilize-recombinant-proteins
#10
Siddharth Deshpande, Nihar D Masurkar, Vallerinteavide Mavelli Girish, Malan Desai, Goutam Chakraborty, Juliana M Chan, Chester L Drum
The expression and stabilization of recombinant proteins is fundamental to basic and applied biology. Here we have engineered a thermostable protein nanoparticle (tES) to improve both expression and stabilization of recombinant proteins using this technology. tES provides steric accommodation and charge complementation to green fluorescent protein (GFPuv), horseradish peroxidase (HRPc), and Renilla luciferase (rLuc), improving the yields of functional in vitro folding by ~100-fold. Encapsulated enzymes retain the ability to metabolize small-molecule substrates, presumably via four 4...
November 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29129408/efficiency-of-decolorization-of-different-dyes-using-fungal-biomass-immobilized-on-different-solid-supports
#11
Wioletta Przyśtas, Ewa Zabłocka-Godlewska, Elżbieta Grabińska-Sota
Different technologies may be used for decolorization of wastewater containing dyes. Among them, biological processes are the most promising because they seem to be environmentally safe. The aim of this study was to determine the efficiency of decolorization of two dyes belonging to different classes (azo and triphenylmethane dyes) by immobilized biomass of strains of fungi (Pleurotus ostreatus - BWPH, Gleophyllum odoratum - DCa and Polyporus picipes - RWP17). Different solid supports were tested for biomass immobilization...
November 9, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29127631/the-impact-of-urbanization-on-co2-emissions-in-china-an-empirical-study-using-1980-2014-provincial-data
#12
Shijin Wang, Cunfang Li
Towns and cities are not only the focus of attention for their consumption of energy and resources; they are also scrutinized closely for their emissions of greenhouse gases. China's urbanization level now exceeds 50%, but there is still much disparity compared with the level of urbanization in developed countries. This study selects China's urban population and carbon emissions data for the years 1980-2014 and discusses the timing and cause effect of urbanization and the corresponding carbon emissions using the Granger causality test and an error correction model (ECM) then uses STIRPAT models to extract six indicators to measure the quality of urbanization, namely, the level of urbanization, area of built-up regions, added value of tertiary industries, disposable income per capita, green areas per capita, and energy intensity...
November 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29124636/green-fabrication-of-gold-nanomaterials-using-staphylococcus-warneri-from-sundarbans-estuary-an-effective-recyclable-nanocatalyst-for-degrading-nitro-aromatic-pollutants
#13
Sudip Nag, Arnab Pramanik, Dhrubajyoti Chattopadhyay, Maitree Bhattacharyya
Microbial synthesis of gold nanoparticles (GNPs) has attracted considerable attention in recent times due to their exceptional capability for the bioremediation of industrial wastes and also for the treatment of wastewater. A bacterial strain Staphylococcus warneri, isolated from the estuarine mangroves of Sundarbans region produced highly stable GNPs by reducing hydrogen auric chloride (HAucl4) salt using intracellular protein extract. The nanoparticles were characterized utilizing ultraviolet-visible spectrophotometry, transmission electron microscopy, scanning electron microscopy, atomic force microscopy, X-ray diffraction, and surface enhanced Raman scattering...
November 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29121078/indocyanine-green-fluorescence-in-second-near-infrared-nir-ii-window
#14
Zbigniew Starosolski, Rohan Bhavane, Ketan B Ghaghada, Sanjeev A Vasudevan, Alexander Kaay, Ananth Annapragada
Indocyanine green (ICG), a FDA approved near infrared (NIR) fluorescent agent, is used in the clinic for a variety of applications including lymphangiography, intra-operative lymph node identification, tumor imaging, superficial vascular imaging, and marking ischemic tissues. These applications operate in the so-called "NIR-I" window (700-900 nm). Recently, imaging in the "NIR-II" window (1000-1700 nm) has attracted attention since, at longer wavelengths, photon absorption, and scattering effects by tissue components are reduced, making it possible to image deeper into the underlying tissue...
2017: PloS One
https://www.readbyqxmd.com/read/29120398/bamboo-polylactic-acid-pla-composite-material-for-structural-applications
#15
Angel Pozo Morales, Alfredo Güemes, Antonio Fernandez-Lopez, Veronica Carcelen Valero, Sonia De La Rosa Llano
Developing an eco-friendly industry based on green materials, sustainable technologies, and optimum processes with low environmental impact is a general societal goal, but this remains a considerable challenge to achieve. Despite the large number of research on green structural composites, limited investigation into the most appropriate manufacturing methodology to develop a structural material at industrial level has taken place. Laboratory panels have been manufactured with different natural fibers but the methodologies and values obtained could not be extrapolated at industrial level...
November 9, 2017: Materials
https://www.readbyqxmd.com/read/29117150/coordinating-leader-follower-supply-chain-with-sustainable-green-technology-innovation-on-their-fairness-concerns
#16
Bisheng Du, Qing Liu, Guiping Li
Sustainable green technology innovation is essential in all the stages of the supply chain development. The members of the supply chain in each stage need to invest in sustainable green technology innovation research and development. However, whether the sustainable green technology innovation investments and profits for all the members are fairness concerned is a critical factor to motivate the supply chain members. Motivated by a real business investigation, in this study, a supply chain model with one supplier and one manufacturer is analyzed...
November 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29116688/facile-synthesis-of-highly-water-soluble-lanthanide-doped-t-lavo4-nps-for-antifake-ink-and-latent-fingermark-detection
#17
Cailing Chen, Ying Yu, Chunguang Li, Dan Liu, He Huang, Chen Liang, Yue Lou, Yu Han, Zhan Shi, Shouhua Feng
In the information age, it is important to protect the security and integrity of the information. As a result, the fluorescent ink as an antifake technology and the fingermark as an information carrier have aroused great interest. In this work, highly water-soluble lanthanide (Ln(3+) )-doped tetragonal phase (t-) LaVO4 nanoparticles (NPs) are successfully obtained via a simple, fast, and green microwave-assisted hydrothermal method. The average size of t-LaVO4 NPs is about 43 nm. The aqueous solutions of Ln(3+) -doped t-LaVO4 exhibit excellent fluorescence properties under ultraviolet light (UV) excitation (t-LaVO4 :10%Eu is bright red and t-LaVO4 :0...
November 8, 2017: Small
https://www.readbyqxmd.com/read/29115349/triplet-sensitized-photon-upconversion-in-deep-eutectic-solvents
#18
Yoichi Murakami, Sudhir Kumar Das, Yuki Himuro, Satoshi Maeda
Photon upconversion (UC) is a technology that can increase solar utilization efficiencies in broad photoenergy conversion systems by converting lower-energy photons into usable higher-energy photons. Recently, UC using triplet-triplet annihilation (TTA) of organic molecules has drawn attention because it is presently the only method applicable to weak and noncoherent light. To date, many attempts have been made to realize this UC technology in forms suitable for applications, but they typically suffer from either high cost or insufficient stability and/or safety of materials...
November 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29101574/health-condition-assessment-for-vegetation-exposed-to-heavy-metal-pollution-through-airborne-hyperspectral-data
#19
Bikram Pratap Banerjee, Simit Raval, Hao Zhai, Patrick Joseph Cullen
Recent advancements in hyperspectral remote sensing technology now provide improved diagnostic capabilities to assess vegetation health conditions. This paper uses a set of 13 vegetation health indices related to chlorophyll, xanthophyll, blue/green/red ratio and structure from airborne hyperspectral reflectance data collected around a derelict mining area in Yerranderie, New South Wales, Australia. The studied area has ten historic mine shafts with a legacy of heavy metals and acidic contamination in a pristine ecosystem now recognised as Great Blue Mountain World Heritage Area...
November 3, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29100931/effects-of-hurdle-technology-on-monascus-ruber-growth-in-green-table-olives-a-response-surface-methodology-approach
#20
Leandro P Cappato, Amanda M Dias Martins, Elisa H R Ferreira, Amauri Rosenthal
An ascomycetes fungus was isolated from brine storage of green olives of the Arauco cultivar imported from Argentina and identified as Monascus ruber. The combined effects of different concentrations of sodium chloride (3.5-5.5%), sodium benzoate (0-0.1%), potassium sorbate (0-0.05%) and temperature (30-40°C) were investigated on the growth of M. ruber in the brine of stored table olives using a response surface methodology. A full 2(4) factorial design with three central points was first used in order to screen for the important factors (significant and marginally significant factors) and then a Face-Centered Central Composite Design was applied...
October 13, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
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