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Xiao-Xu Song, Huifen Fu, Peng Wang, Hai-Yan Li, Yan-Qiu Zhang, Chong-Chen Wang
A polyoxomolybdate based hybrid, [δ-Mo8 O26 ](L)2 ·2H2 O (BUC-77), was synthesized via hydrothermal method, which exhibited selectively fluorescent detection and efficient adsorptive removal toward Pb2+ in aqueous environment. A good linearity was observed between the fluorescence quenching percentage of BUC-77 and the Pb2+ concentration, along with the detection limit being 6.91 ppb. BUC-77 was stable in common solvents and wide pH range, which could be regenerated by being washed with dilute inorganic acids like HNO3 after adsorption of Pb2+ ...
August 10, 2018: Journal of Colloid and Interface Science
Erna Xun, Yanwen Zhang, Jimin Zhao, Jixun Guo
Plants growing in heavy-metal-rich soils can accumulate metals into their nectar. Nectar chemical composition can alter foraging behavior of floral visitors (including pollinators and floral antagonists) and further affect plant reproductive fitness. The role of nectar heavy metals in deterring pollinators (e.g., shortening foraging time) has been recently studied, but their effects on plant reproduction via changes in behaviors of both pollinators and floral antagonists (e.g., nectar robbers) are less understood...
August 7, 2018: Environmental Pollution
Qiantao Shi, Amalia Terracciano, Ying Zhao, Chaoyang Wei, Christos Christodoulatos, Xiaoguang Meng
Activated carbon (AC) is commonly used in faucet and pitcher filters for lead (Pb(II)) removal in homes. This study evaluated the Pb(II) removal performance of AC and metal oxides (e.g. Fe(OH)3 and TiO2 ), as well as the co-existing ions' effect on Pb(II) removal. Results showed that metal oxides had higher adsorption capacity (28.9-51.5 mg/g) than AC (21.2 mg/g). Pb(II) was inner-spherically adsorbed onto both AC and metal oxides surfaces. Among various metal ions, calcium (Ca(II)) demonstrated dramatic effects on Pb(II) removal ability of AC, while it had no effect on Pb(II) adsorption by metal oxides...
August 3, 2018: Science of the Total Environment
A Ivanovsky, A Belles, J Criquet, D Dumoulin, P Noble, C Alary, G Billon
During the last few decades, stormwater ponds have become an alternative management practice in order to avoid flooding and to contain rainwater and runoff in urban areas where impervious land cover has increased. A second purpose of stormwater ponds is to improve the quality of runoff water that is usually contaminated with nitrogen, phosphorus, metals and organic micropollutants. Processes used are based on natural methods such as settlement and contribute to minimize the impact of these inputs to the natural aquatic system...
August 13, 2018: Journal of Environmental Management
Thiago Ferreira Timoteo, Paula Barreiros Debien, Bernardo Miloski, Francisco Zacaron Werneck, Tim Gabbett, Maurício Gattás Bara Filho
Timoteo, TF, Debien, PB, Miloski, B, Werneck, FZ, Gabbett, T, and Filho, MGb. Influence of workload and recovery on injuries in elite male volleyball players. J Strength Cond Res XX(X): 000-000, 2018-The aim of this study was to investigate the influence of workload and recovery on injury rates in elite male volleyball players. Data were collected from 14 male professional volleyball players over a 27-week season. Workloads were monitored daily using the session rating of perceived exertion, and recovery status was appraised using the Total Quality Recovery (TQR) scale...
August 15, 2018: Journal of Strength and Conditioning Research
Noushin Pouryazdanpanah, Reza Vahidi, Shahriar Dabiri, Ali Derakhshani, Alireza Farsinezhad
BACKGROUND: The mesenchymal stem cells (MSCs) of peripheral blood (PB) have been recognized as a promising source for allogeneic cell therapy. The objective of the present study was to isolate and characterize MSCs derived from non-mobilized PB, and evaluate their differentiation potential. METHODS: The buffy coat mononuclear fractions of the PB were concentrated using the Ficoll-Paque density gradient centrifugation and were grown on primary and secondary culture media, respectively...
August 1, 2018: Archives of Iranian Medicine
William Burbridge-James
No abstract text is available yet for this article.
September 2018: British Journal of Psychiatry: the Journal of Mental Science
Eugene G Breen
No abstract text is available yet for this article.
September 2018: British Journal of Psychiatry: the Journal of Mental Science
Dean Connolly
No abstract text is available yet for this article.
September 2018: British Journal of Psychiatry: the Journal of Mental Science
Yinghuan Kuang, Valerio Zardetto, Roderick van Gils, Saurabh Karwal, Dibyashree Koushik, Marcel A Verheijen, Lachlan E Black, Christ Weijtens, Sjoerd Veenstra, Ronn Andriessen, Wilhelmus M M Kessels, Mariadriana Creatore
In this work, we present an extensive characterization of plasma-assisted atomic-layer-deposited (ALD) SnO2 layers, with the aim of identifying key material properties of SnO2 to serve as an efficient electron transport layer (ETL) in perovskite solar cells (PSCs). Electrically resistive SnO2 films are fabricated at 50 °C, while a SnO2 film with a low electrical resistivity of 1.8 × 10-3 Ω cm, a carrier density of 9.6 × 1019 cm-3 , and a high mobility of 36.0 cm2 /Vs is deposited at 200 °C. Ultraviolet photoelectron spectroscopy indicates a conduction band offset of ~0...
August 16, 2018: ACS Applied Materials & Interfaces
K Ramesh Kumar, V Anbazhagan
Industrialization and extraction of natural resources have resulted in large-scale environmental contamination and pollution. We have collected the soil samples from five different industrial areas of Mettur (Chemplast Sanmar Limited, SIDCO-1, SIDCO-2, SIDCO-3, thermal power plant), Salem district, Tamil Nadu, India, and estimated the physical properties (pH, EC, and alkalinity), chemical properties (major and minor elements), and heavy metal analysis. Thermal power plant soil sample showed higher pH 5.01, EC 29...
August 15, 2018: Environmental Monitoring and Assessment
Hezhong Yuan, Siyuan Song, Shuqing An, Enfeng Liu
The Shayinghe River is an important tributary of the Huaihe River in China. The concentrations of potential toxic elements (PTEs), such as As, Hg, Pb, Cu, Zn, Cr, and Cd in soils and dominant vegetation from mud-dumping areas reclaimed with dredged sediments, and areas without mud-dumping (non-mud-dumping areas) adjacent to the Shayinghe River were investigated. The potential ecological risk index (ERI) and transfer coefficient (TC) were calculated and evaluated. The results showed that the potential toxic element concentrations in all sampling areas decreased in the order of (Zn, Cr) > (Cu, Pb) > As>Cd > Hg...
August 15, 2018: Environmental Science and Pollution Research International
Vishnu Manirethan, Keyur Raval, Reju Rajan, Harsha Thaira, Raj Mohan Balakrishnan
Heavy metals are one of deadly contaminants in ground water across the globe. Thus, herein, this data set comprises experimental and modelled data on the removal of heavy metals from ground water using melanin synthesized by the marine bacteria Pseudomonas stutzeri . Characterization of biosynthesized melanin and modelling of the kinetic and the thermodynamic study on adsorption of heavy metals such as mercury (Hg(II)), lead (Pb(II)), chromium (Cr(VI)), and copper (Cu(II)) are included in this article. Apart from the study of parameters involved in adsorption such as pH, temperature, concentration and time; the data from these studies are modelled to analyze the nature and characteristic of heavy metals adsorbing to melanin nanoparticles...
October 2018: Data in Brief
Nurul Ashikin Hassim, Kamarul Hambali, Nor Shahirul Umirah Idris, Aainaa Amir, Ahmad Ismail, Syaizwan Zahmir Zulkifli, Ai Yin Sow
Long-tailed macaque ( Macaca fascicularis ) has the potential to be a good biological indicator for toxic exposure because they have an almost similar physiology and behaviour to humans. The objective of this study is to determine the concentration of lead (Pb) in hair samples of long-tailed macaques which were found in and out of the Kuala Selangor Nature Park (KSNP) area. The hypothesis is long-tailed macaques that live in the anthropogenic area (outside KSNP) may be exposed to high levels of lead compared to long-tailed macaques living in the forest area (inside KSNP)...
July 2018: Tropical Life Sciences Research
Abolghassem Emamverdian, Yulong Ding, Farzad Mokhberdoran, Yinfeng Xie
Investigating factors involved in the alleviation of the toxic effects of heavy metals (HMs) on plants is regarded as one of the important research concerns in the environmental field. The southern regions of China are severely impacted by human-induced heavy metal (HM) contamination, which poses an impediment to growth and productivity of bamboo ( Indocalamus latifolius ) plants. This necessitates the investigation of the effects of HMs on growth and physiological properties of bamboo. Therefore, the aim of the study was to evaluate some gas exchange and growth parameters in two-year-old bamboo species under HMs stress...
2018: TheScientificWorldJournal
Jiunian Guan, Jia Wang, He Pan, Chen Yang, Jiao Qu, Nan Lu, Xing Yuan
Yinma River is a typical river in the major Phaeozems zone of Northeast China. It has been suffering an increasing environmental pressure from heavy metal contamination due to the rapid development of population, social-economy and urbanization as well as long term over cultivation. This study investigated the spatial distribution, chemical fraction of heavy metals (Cu, Pb, Zn, Cr, Cd, Ni, As, and Hg) in sediments of Yinma River based on BCR procedure, assessed the contamination level, and identified their sources via multivariate statistical analysis...
August 15, 2018: Scientific Reports
Stephani Kim, Xijin Xu, Yuling Zhang, Xiangbin Zheng, Rongju Liu, Kim Dietrich, Tiina Reponen, Shuk-Mei Ho, Changchun Xie, Heidi Sucharew, Xia Huo, Aimin Chen
Electronic waste (e-waste) is the fastest growing solid waste stream worldwide and mostly ends up in developing countries where residents use primitive methods for recycling. The most infamous e-waste recycling town, Guiyu in Southeast China, has been recycling since the mid-1990s. E-waste contains several harmful chemicals, including lead (Pb), cadmium (Cd), chromium (Cr), and manganese (Mn). In 2011-12, the e-waste Recycling Exposures and Community Health (e-REACH) Study enrolled 634 pregnant women living in Guiyu and Haojiang, a control site, both in Shantou, China...
August 15, 2018: Journal of Exposure Science & Environmental Epidemiology
Ya-Jing Zhang, Tao Wang, Qiao-Sheng Guo, Qing-Jun Zou, Meng-Lu Zhao, Zheng-Zhou Han, Min Wei
ICP-MS was used to determine the contents of five heavy metals such as lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As) and copper (Cu) in Chrysanthemum indicum and soil samples. Pearson correlation and path analysis were used to analyze the effects of latitude and longitude and altitude on the content of heavy metal elements in Ch. indicum. To explore the relationship between geographical location of heavy metal content in Ch. indicum and the content of heavy metal elements in soil. The results showed that the Ch...
July 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
Youning Chen, Wei Zhao, Huan Wang, Xiaohua Meng, Linjie Zhang
A novel polyamine-type starch/glycidyl methacrylate (GMA) copolymer with a high capacity for the adsorption of heavy metal ions was prepared via graft copolymerization of GMA and corn starch and a subsequent amination reaction between amino group of diethylenetriamine and epoxy group in GMA. The copolymers were characterized by Fourier transform infrared spectrometry, X-ray diffraction and scanning electron microscopy, and adsorption properties on modified starch of Cu(II), Pb(II), Cd(II) and Cr(III) were studied...
June 2018: Royal Society Open Science
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