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Jinxing Wang, Manzar Abbas, Yanzhong Wen, Dongsheng Niu, Ling Wang, Yuhan Sun, Yun Li
Black locust (Robinia pseudoacacia L.) is an easy to raise, fast growing, medium-sized deciduous tree species highly tolerant to harsh eco-conditions, i.e., drought and harsh winters, and it is widely adaptable to sandy, loamy, and marshy soils. The basis for this adaptability remains to be investigated at the transcriptomic level using real-time quantitative PCR (qPCR). Selection of a reliable gene for the normalization of qPCR data is important for obtaining accurate results in gene expression. The goal of this study was to identify an appropriate reference gene from 12 candidate genes for gene expression analysis in black locust exposed to various stressors such as abscisic acid (ABA), NaCl, polyethylene glycol (PEG) and varying temperatures...
2018: PloS One
Alessandra H Ide, José Manuel F Nogueira
A new hybrid microextraction technique (hollow fiber microextraction) is presented that uses the main concepts and advantages of the modern miniaturized devices used for trace analysis. This novel analytical approach uses devices made of polypropylene membranes (10.0 mm long and 0.6 mm internal diameter) in which convenient organic solvents are embedded that promote fast kinetics during the enrichment process, using the floating sampling technology concept. An innovative analytical cycle is also proposed by use of low-cost disposable devices during the microextraction stage together with a user-friendly ("single liquid desorption step") back-extraction stage in compliance with green analytical chemistry principles...
March 10, 2018: Analytical and Bioanalytical Chemistry
Guangyuan Ren, Liangliang Gao, Chao Teng, Yunan Li, Hequn Yang, Jianglan Shui, Xianyong Lu, Ying Zhu, Liming Dai
The method of fabricating non-precious-metal electrocatalysts with high activity and durability through a facile and eco-friendly procedure is of great significance to the development of low cost fuel cells and metal-air batteries. Herein, we present that an ancient chemical reaction of "Pharaoh's snakes" can be a fast and convenient technique to prepare Fe/N-doped carbon nanosheets/nanotubes (Fe/N-C) electrocatalysts with sugar, soda, melamine and iron nitrate as precursors. The resultant Fe/N-C catalyst has a hierarchically porous structure, large surface area and uniformly distributed active sites...
March 9, 2018: ACS Applied Materials & Interfaces
Mohammad Abdullatif Bukhari, Ruth Carrasco-Gallego, Eva Ponce-Cueto
Textiles waste is relatively small in terms of weight as compared to other waste streams, but it has a large impact on human health and environment, and its rate is increasing due to the 'fast fashion' model. In this paper, we examine the French national programme for managing post-consumer textiles and clothing through a case study research. To date, France is the only country in the world implementing an extended producer responsibility (EPR) policy for end-of-use clothing, linen and shoes. The case highlights the benefits of using an EPR policy and provides interesting insights about the challenges faced by the textiles waste sector...
March 1, 2018: Waste Management & Research
Leeladhar, Parul Raturi, J P Singh
Photomechanical actuation is the conversion of light energy into mechanical energy through some smart materials. Infrared-responsive smart materials have become an emerging field of research due to easy availability and eco-friendly nature of their stimulus in the form of sunlight, which contains about 50% of near-infrared(nIR) making these materials useful at macro-scale photoactuator applications. Here, we demonstrate fabrication of highly versatile nIR triggered photoactuators based on graphene oxide/polycarbonate bilayers that offers fast, low-cost fabrication, large deflection, reversible actuation and wavelength-selective response...
February 27, 2018: Scientific Reports
Fubang Wang, Jixian Gong, Yanfei Ren, Jianfei Zhang
Biomass pigments have been regarded as promising alternatives to conventional synthetic dyestuffs for the development of sustainable and clean dyeing. This investigation focused on in situ dyeing of fabrics with biopigments derived from tea polyphenols via non-enzymatic browning reaction. The average particle size of dyed residual liquor with natural tea polyphenol was 717.0 nm (ranging from 615.5 to 811.2 nm), and the Integ value of dyed wool fabrics was the greatest compared to those of counterparts. In addition, the Integ values of dyed fabrics with residual liquor were much bigger than those with the first reaction solutions when dyed by identical dyeing liquor...
January 2018: Royal Society Open Science
Feriel Bouatay, Noureddine Baaka, Adeel Shahid, Mohamed Farouk Mhenni
In this research paper, an eco-friendly extraction process of dyes from Vicia faba L. membranes was developed. In this regard, the influence of independent process factors like the weight of material, the extraction time, the temperature and the sodium hydroxide concentration on the natural dye extraction from Vicia faba membranes was investigated. The optimisation of the extraction conditions and the effect evaluation of the different operating parameters were carried out using a Box-Behnken design under response surface methodology...
February 2, 2018: Natural Product Research
Hao Wan, Xiaofeng Li, Liang Zhang, Xiaopeng Li, Pengfei Liu, Zhiguo Jiang, Zhong-Zhen Yu
Rapidly responsive and flexible photonic papers are manufactured by co-assembly of cellulose nanocrystals (CNCs) and waterborne polyurethane (WPU) latex for fully taking advantage of the chiral nematic structure of CNCs and the flexibility of WPU elastomer. The resulting CNC/WPU composite papers exhibit not only tunable iridescent colors by adjusting the helical pitch size, but also instant optical responses to water and wet gas ascribed to the easy chain movement of the elastomeric WPU that does not restrict the fast water absorption induced swelling of CNCs...
January 24, 2018: ACS Applied Materials & Interfaces
Shabih Fatma, Amir Hameed, Muhammad Noman, Temoor Ahmed, Imran Sohail, Muhammad Shahid, Mohsin Tariq, Romana Tabassum
Uprising energy crisis is predicted to be critically challenging in the foreseeable future where existing fossil fuel reservoirs are fast depleting and their extensive usage is posing serious health-related concerns to biological life on earth. To cover up these exhaustible energy resources, extensive efforts are going on to discover new frontiers in generating alternative energy sources on sustainable, renewable, and most importantly environment-friendly basis. In this context, biofuels (biomasses derived fuels) are seemed to be a promising solution considering the economical and applicable aspects...
January 22, 2018: Protein and Peptide Letters
Hamid Beyzaei, Zahra Motraghi, Reza Aryan, Mohammad Mehdi Zahedi, Alireza Samzadeh-Kermani
Various biological properties of natural and synthetic pyrazole derivatives such as anti-inflammatory, antimicrobial, neuroprotective, anticonvulsant, antidepressant and anticancer activities encouraged us to propose a new, fast, green and eco-friendly procedure for the preparation of some novel 5-amino-3-(aryl substituted)-1-(2,4-dinitrophenyl)-1H-pyrazole-4-carbonitriles. They were efficiently synthesized via one-pot two-step process reaction of malononitrile, 2,4-dinitrophenylhydrazine and different benzaldehydes in deep eutectic solvent (DES) glycerol/potassium carbonate...
December 2017: Acta Chimica Slovenica
Stefano Cinti, Luca Fiore, Renato Massoud, Claudio Cortese, Danila Moscone, Giuseppe Palleschi, Fabiana Arduini
The recent goal of sustainability in analytical chemistry has boosted the development of eco-designed analytical tools to deliver fast and cost-effective analysis with low economic and environmental impact. Due to the recent focus in sustainability, we report the use of low-cost filter paper as a sustainable material to print silver electrodes and to load reagents for a reagent-free electrochemical detection of chloride in biological samples, namely serum and sweat. The electrochemical detection of chloride ions was carried out by exploiting the reaction of the analyte (i...
March 1, 2018: Talanta
Yu-Ting Zhuang, Xiao Zhang, Dan-Hua Wang, Yong-Liang Yu, Jian-Hua Wang
A hierarchical and hybridized hydrogel with rational structure and composition as adsorbent possesses a series of distinct advantages, e.g., fast ion diffusion, high selectivity and good stability. Herein, a novel three-dimensional (3D) molybdenum disulfide (MoS2)-reduced graphene oxide (rGO) hydrogel with two-dimensional heterointerfaces is fabricated by an eco-friendly one-pot hydrothermal method. The heterointerfacial area could be readily tuned by the regulation of MoS2/rGO ratio, in order to improve the adsorption capacity and selectivity...
December 29, 2017: Journal of Colloid and Interface Science
Abbas Ostovan, Mehrorang Ghaedi, Maryam Arabi, Qian Yang, Jinhua Li, Lingxin Chen
A novel green synthesis strategy was proposed for preparation of multi-template molecularly imprinted biopolymers (mt-MIBP) in aqueous media with less consumption of organic solvents, which were subsequently used as sorbents of ultrasound-assisted dispersive solid-phase extraction (d-SPE) for simultaneous recognition and efficient separation of B-family vitamins in juice samples followed by high performance liquid chromatography (HPLC) determination. The obtained mt-MIBP was fully characterized by SEM, FT-IR, TEM and BET...
January 4, 2018: ACS Applied Materials & Interfaces
Ghada F El-Said, Manal M El-Sadaawy, Mohamed A Aly-Eldeen
The defluoridation from aquatic medium by raw marine algae, Ulva lactuca, was investigated. The element components and adsorbent's properties were determined. The influence of pH, contact period, and Ulva sp. weight on the deflouridation was achieved. The complete defluoridation of 10 mg F-/l solution was obtained within 10 min at definite pHs. Fourteen adsorption isotherms and four kinetic models (pseudo-first order and pseudo-second order, Elovich, and intraparticle diffusivity) were studied. The most adequate model was performed by using five error functions...
December 12, 2017: Environmental Monitoring and Assessment
Ahmed Debez, Ikram Belghith, Andreas Pich, Wael Taamalli, Chedly Abdelly, Hans-Peter Braun
Seed germination recovery aptitude is an adaptive trait of overriding significance for the successful establishment and dispersal of extremophile plants in their native ecosystems. Cakile maritima is an annual halophyte frequent on Mediterranean coasts, which transiently produces transiently dormant seeds under high salinity, but that germinate fast when soil salinity is lowered by rainfall. Here, we report eco-physiological and proteomic data about (i) the effect of high salt (200 mM NaCl) on the early developmental stages (germination and seedling) and (ii) the seed germination recovery capacity of this species...
December 8, 2017: Physiologia Plantarum
Wei Teng, Nan Bai, Yang Liu, Yupu Liu, Jianwei Fan, Wei-Xian Zhang
Excessive nutrients (N and P) are among the most concerned pollutants in surface and ground waters. Herein, we report nanoscale zero-valent iron supported on ordered mesoporous carbon (nZVI@OMC) for electrocatalytic reduction of nitrate (NO3 - ) to nitrogen gas (N2 ). This material has a maximum removal capacity of 315 mg N/g Fe and nitrogen selectivity up to 74%. The Fe-C nanocomposite is prepared via a postsynthetic modification including carbon surface oxidation, in-situammonia prehydrolysis of iron precursor and hydrogen reduction...
January 2, 2018: Environmental Science & Technology
Jianing An, Truong-Son Dinh Le, Yi Huang, Zhaoyao Zhan, Yong Li, Lianxi Zheng, Wei Huang, Gengzhi Sun, Young-Jin Kim
Noncontact electronic skin (e-skin), which possesses superior long-range and high-spatial-resolution sensory properties, is becoming indispensable in fulfilling the emulation of human sensation via prosthetics. Here, we present an advanced design and fabrication of all-graphene-based highly flexible noncontact e-skins by virtue of femtosecond laser direct writing (FsLDW). The photoreduced graphene oxide patterns function as the conductive electrodes, whereas the pristine graphene oxide thin film serves as the sensing layer...
December 27, 2017: ACS Applied Materials & Interfaces
Giovanni Benelli, Marimuthu Govindarajan, Mohan Rajeswary, Baskaralingam Vaseeharan, Sami A Alyahya, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Filippo Maggi
The fast-growing resistance development to several synthetic and microbial insecticides currently marketed highlighted the pressing need to develop novel and eco-friendly pesticides. Among the latter, botanical ones are attracting high research interest due to their multiple mechanisms of action and reduced toxicity on non-target vertebrates. Helicoverpa armigera (Lepidoptera: Noctuidae) is a key polyphagous insect pest showing insecticide resistance to several synthetic molecules used for its control. Therefore, here we focused on the rhizome essential oil extracted from an overlooked Asian plant species, Cheilocostus speciosus (J...
February 2018: Ecotoxicology and Environmental Safety
Helga Fernández-Llamosas, Laura Castro, María Luisa Blázquez, Eduardo Díaz, Manuel Carmona
Selenium and selenium nanoparticles (SeNPs) are extensively used in biomedicine, electronics and some other industrial applications. The bioproduction of SeNPs is gaining interest as a green method to manufacture these biotechnologically relevant products. Several microorganisms have been used for the production of SeNPs either under aerobic or anaerobic conditions. Vibrio natriegens is a non-pathogenic fast-growing bacterium, easily cultured in different carbon sources and that has recently been engineered for easy genetic manipulation in the laboratory...
November 22, 2017: Scientific Reports
Arivalagan Pugazhendhi, Desika Prabakar, Jaya Mary Jacob, Indira Karuppusamy, Rijuta Ganesh Saratale
Microfouling is evolving at a fast rate causing augmented mortality rates and damage worldwide. Until now, several remedial measures have been exploited to overcome microfouling, amongst them nanoparticles play a superior role. Currently, green synthesized nanoparticles have been centered owing to its eco-friendly, cost effectively and non-toxic nature which has also increased its industrial applications (biomedicine, food and textile). In the present research Silver Nanoparticles (Ag NPs) synthesized using marine red algae Gelidium amansii...
January 2018: Microbial Pathogenesis
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