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https://www.readbyqxmd.com/read/29793208/enhanced-phosphate-removal-from-wastewater-by-using-in-situ-generated-fresh-trivalent-fe-composition-through-the-interaction-of-fe-ii-on-caco-3
#1
Yujie Li, Xiaoman He, Huimin Hu, Tingting Zhang, Jun Qu, Qiwu Zhang
Excessive existences of nutrients such as phosphate in the aqueous environment remain as a heavy concern although many researches have been reported for dealing with their removal. Based on the understanding toward the interactions of Fe compounds with phosphate and carbonate from many available researches, we designed a very simple and efficient approach for phosphate removal by using in situ generated fresh trivalent Fe composition through the interaction of Fe(II) as FeSO4 on CaCO3 . Addition and agitation of Fe(II) and CaCO3 simultaneously to phosphate solution allowed an amorphous Fe(III)-P or Ca-Fe(III)-P precipitation, with a phosphate removal rate close to 100%, to reduce the residual phosphorus concentration less than 0...
May 21, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29793146/development-of-a-novel-tridentate-ligand-for-colorimetric-detection-of-mn-2-based-on-agnps
#2
Jianyu Wei, Jinfan Chen, Guozong Yue, Liangsheng Hu, Danqing Zhao, Jing Zhu, Luming Yang, Deshun Huang, Pengxiang Zhao
A novel tridentate ligand nitrilotris(methylene)tris(1,2,3-triazole)triacetate (NTTTA) has been synthesized by click reaction and followed with ester hydrolysis reaction. The silver nanoparticles (AgNPs) were then modified and stabilized by this ligand, and subsequently been employed for the highly selective and sensitive colorimetric detection of Mn2+ in aqueous solution. The presence of Mn2+ can cause the aggregation of AgNPs, which leads to the color change of the dispersion from yellow to brown, as well as the decrease and red-shift of the surface plasmon resonance absorption...
May 9, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29793095/sex-hormones-affect-acute-and-chronic-stress-responses-in-sexually-dimorphic-patterns-consequences-for-depression-models
#3
Lei Guo, Yi-Xi Chen, Yu-Ting Hu, Xue-Yan Wu, Yang He, Juan-Li Wu, Man-Li Huang, Matthew Mason, Ai-Min Bao
BACKGROUND: Alterations in peripheral sex hormones may play an important role in sex differences in terms of stress responses and mood disorders. It is not yet known whether and how stress-related brain systems and brain sex steroid levels fluctuate in relation to changes in peripheral sex hormone levels, or whether the different sexes show different patterns. We aimed to investigate systematically, in male and female rats, the effect of decreased circulating sex hormone levels following gonadectomy on acute and chronic stress responses, manifested as changes in plasma and hypothalamic sex steroids and hypothalamic stress-related molecules...
May 21, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29793093/graphene-oxide-assisted-au-nanoparticle-strip-biosensor-based-on-gr-5-dnazyme-for-rapid-lead-ion-detection
#4
Hai-Bo Wang, Li-Hong Ma, Bi-Yun Fang, Yuan-Di Zhao, Xue-Bin Hu
This study has reported that a GR-5 DNAzyme based lead ion strip biosensor could exhibit an enhanced specificity with the assistance of graphene oxide (GO). This enhancement results from the specific π-stacking interaction between the ribose rings of the nucleobases and the carbon hexagons in GO which can reduce the false positive interference by removing unhybridized ssDNA during the annealing of GR-5 DNAzyme. Meanwhile, conjugate pad was sprayed with two kinds of AuNP-DNA probes, and nitrocellulose membrane test zone and control zone were immobilized with two kinds of biotin-DNA probes, respectively...
May 21, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29793073/bubble-generating-polymersomes-loaded-with-both-indocyanine-green-and-doxorubicin-for-effective-chemotherapy-combined-with-photothermal-therapy
#5
Dunwan Zhu, Fan Fan, Chenlu Huang, Zhiming Zhang, Yu Qin, Li Lu, Hai Wang, Xu Jin, Hanxue Zhao, Hu Yang, Chao Zhang, Jun Yang, Zhipeng Liu, Hongfan Sun, Xigang Leng, Deling Kong, Linhua Zhang
The combination of chemotherapy and photothermaltherapy (PTT) via stimuli-responsive nanovesicles has great potential in tumor treatment. In the present study, bubble-generating polymersomes, which can generate bubbles in response to low pH or hyperthermia, were fabricated to simultaneously encapsulate chemotherapeutic drug and photosensitizing agent for the synergistic chemo-photothermal tumor therapy. Photosensitizer indocyanine green (ICG) was encapsulated into the bilayer of polymersomes formed by amphiphilic triblock copolymer PCL8000 -PEG8000 -PCL8000 through thin film re-hydration method, while chemotherapeutic doxorubicin (DOX) was loaded into the hydrophilic lumen using a transmembrane ammonium bicarbonate gradient loading procedure...
May 21, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29793067/performance-and-methane-fermentation-characteristics-of-a-pilot-scale-anaerobic-membrane-bioreactor-anmbr-for-treating-pharmaceutical-wastewater-containing-m-cresol-mc-and-iso-propyl-alcohol-ipa
#6
Zhaobo Chen, Xue Li, Dongxue Hu, Yubo Cui, Fuguang Gu, Fuquan Jia, Tingting Xiao, Haiyan Su, Jiao Xu, Haixu Wang, Pan Wu, Ying Zhang, Na Jiang
In this study, a pilot scale anaerobic membrane bioreactor (AnMBR) was operated for 80 days to treat pharmaceutical wastewater containing m-cresol (MC) and iso-propyl alcohol (IPA). The aim of the study is to investigate the performance and methane fermentation characteristics of AnMBR at different hydraulic retention time (HRT) (48, 36, 24, 18 and 12 h). The average total removal efficiencies of MC and IPA were 95%, 96% during the 80 days, which demonstrated that the AnMBR system performed well in the MC and IPA removal...
May 11, 2018: Chemosphere
https://www.readbyqxmd.com/read/29793066/rapid-and-effective-removal-of-as-iii-and-as-v-using-spore-ti-4-microspheres
#7
Lijuan Lan, Bingjie Zheng, Yao Zhang, Yonggang Hu
Removing arsenic from aquatic environments has become an urgent problem worldwide. In this study, Ti4+ - loaded bacterial spore were adopted as a novel adsorbent (spore@Ti4+ microspheres) for the adsorption efficient removal of arsenite (As(III)) and arsenate (As(V)). The developed adsorbents were characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR) and X-ray photoelectron spectroscopy (XPS). Results indicated that the adsorption kinetics was well described by a pseudo-second-order kinetic model, and the adsorption process rapidly achieved equilibrium within 15 min at pH 7...
May 15, 2018: Chemosphere
https://www.readbyqxmd.com/read/29793044/isolation-of-ferritin-and-its-interaction-with-bmnpv-in-the-silkworm-bombyx-mori
#8
Dong-Qiong Fei, Hai-Zhong Yu, Jia-Ping Xu, Shang-Zhi Zhang, Jie Wang, Bing Li, Li-Ang Yang, Pei Hu, Xin Xu, Kang Zhao, Toufeeq Shahzad
Ferritin is a ubiquitous iron storage protein that plays an important role in host defence against pathogen infections. In the present study, native ferritin was isolated from the hemolymph of Bombyx mori using native-polyacrylamide gel electrophoresis (native-PAGE) and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The results revealed that ferritin consisted of two subunits, designated as BmFerHCH and BmFerLCH. Previously integrated previous transcriptome and iTRAQ data showed that the two subunits were down-regulated in resistant silkworm strain BC9 and there was no obvious change in the expression levels of the subunits in susceptible silkworm strain P50 after BmNPV infection...
May 9, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29792957/high-activity-production-of-xylanase-by-pichia-stipitis-purification-characterization-kinetic-evaluation-and-xylooligosaccharides-production
#9
Changhe Ding, Mengxing Li, Yuqi Hu
As an industrially important biological macromolecule, xylanase hydrolyzes xylan to produce xylooligosaccarides (XOS). XOS, with a degree of polymerization (DP) 2 to 4, are important prebiotics used as food ingredients. In this study, xylanase (5536 U/g substrate) was produced by Pichia stipitis using corncob and wheat bran mixture under solid state fermentation. Crude xylanase were purified and biochemically characterized. XOS hydrolyzed by crude and purified xylanases were quantified. Molecular weight of the purified enzyme was around 31...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792805/a-cheminformatic-insight-into-the-differences-between-terrestrial-and-marine-originated-natural-products
#10
Jun Shang, Ben Hu, Junmei Wang, Feng Zhu, Yu Kang, Dan Li, Huiyong Sun, De-Xin Kong, Tingjun Hou
This is a new golden age for the drug discovery based on natural products derived from both marine and terrestrial sources. Herein, a straightforward but important question is what are the major structural differences between marine natural products (MNPs) and terrestrial natural products (TNPs). To answer this question, we analyzed the important physicochemical properties, structural features and drug-likeness of the two types of natural products and discussed their differences from the perceptive of evolution...
May 24, 2018: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29792755/dalangtan-saline-playa-in-a-hyperarid-region-on-tibet-plateau-i-evolution-and-environments
#11
Fanjing Kong, Mianping Zheng, Bin Hu, Alian Wang, Nina Ma, Pablo Sobron
Since 2008, we have been studying a saline lake, Dalangtan (DLT) Playa, and its surroundings in a hyperarid region of the Qaidam Basin on the Tibetan Plateau as a potential Mars analog site. We describe the evolution of saline deposits in the Qaidam Basin (including DLT), based on investigative findings accumulated over the course of 60 years of geological surveys. In addition, we report regional meteorological patterns recorded for the past 32 years along with meteorological station recorded data at DLT since 2012...
May 24, 2018: Astrobiology
https://www.readbyqxmd.com/read/29792740/colloid-adenocarcinoma-of-the-lung-ct-and-pet-ct-findings-in-seven-patients
#12
Han Kyul Kim, Joungho Han, Teri J Franks, Kyung Soo Lee, Tae Jung Kim, Joon Young Choi, Jaeil Zo
OBJECTIVE: We aimed to assess CT and 18 F-FDG PET/CT findings of colloid adenocarcinoma of the lung in seven patients. MATERIALS AND METHODS: From 2010 to 2017, seven patients with surgically proven colloid adenocarcinoma of the lung were identified. CT (both enhanced and unenhanced) and PET/CT findings were analyzed, and the imaging features were compared with histopathologic reports. Clinical and demographic features were also analyzed. RESULTS: In all cases except one, tumors showed low attenuation on unenhanced CT scans, ranging in attenuation from -16...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792576/using-a-deep-learning-network-to-recognize-low-back-pain-in-static-standing
#13
Boyi Hu, Chong Kim, Xiaopeng Ning, Xu Xu
Low back pain remains one of the most prevalent musculoskeletal disorders, while algorithms that able to recognize low back pain patients from healthy population using balance performance data are rarely seen. In this study, human balance and body sway performance during standing trials were utilized to recognize chronic low back pain populations using deep neural networks. To be specific, forty-four chronic LBP and healthy individuals performed static standing tasks while their spine kinematics and center of pressure were recorded...
May 24, 2018: Ergonomics
https://www.readbyqxmd.com/read/29792549/analysis-of-the-effects-of-individual-and-community-level-predictors-on-migrant-children-s-primary-immunization-in-yiwu-city-east-china
#14
Yu Hu, Yaping Chen, Liang Hui, Ying Wang
BACKGROUND: To evaluate the effects of a wide range of individual- and community-level factors on migrant children's primary immunization. METHODS: Migrant children aged 13-24 months (born from 1 June 2013 to 31 May 2014) were surveyed in Yiwu city, in June 2015. Social-demographic factors and vaccination records were collected. Five factors at community-level including community wealth, distance to the nearest immunization clinic, maternal education, antenatal clinic (ANC) visits, and hospital delivery were constructed...
May 24, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29792546/application-of-a-mixture-model-to-assess-the-effect-of-measles-mumps-rubella-vaccine-on-the-mumps-epidemic-in-children-from-kindergarten-to-early-school-age-in-jiangsu-province-china
#15
Lei Zhang, Zhiguo Wang, Ying Hu, Xiuying Deng, Hongxiong Guo, Xiang Sun, Fenyang Tang, Minghao Zhou, Yuanbao Liu
A single dose of the measles-mumps-rubella (MMR) vaccine has been applied in routine immunizations for children in China; however, the Immunoglobulin G (IgG) antibody level of mumps in children from kindergarten to early school age with MMR vaccine immunization history has not been elucidated. This study aimed to describe the immunity profile of children from kindergarten to early school age to identify the susceptible population. In Jiangsu Province, a cross-sectional survey of 4- to 8-year-old children who were vaccinated with at least one dose of MMR vaccine was conducted...
May 24, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29792415/two-photon-active-organotin-iv-complexes-for-antibacterial-function-and-superresolution-bacteria-imaging
#16
Lei Hu, Hui Wang, Tingting Xia, Bin Fang, Yu Shen, Qiong Zhang, Xiaohe Tian, Hongping Zhou, Jieying Wu, Yupeng Tian
Antibacterial agents with two-photon absorption are expected to play a significant role in biomedical science. Herein, two novel organotin complexes, HLSn1 and HLSn2, based on coumarin were designed, synthesized, and systematically investigated. It was found that these complexes possessed suitable two-photon-active cross sections in the near-infrared region. Moreover, complex HLSn1 could efficiently inhibit the growth of Gram-negative Escherichia coli and Gram-positive Bacillus subtilis, especially the latter with a minimum inhibitory concentration (MIC; 90%) of 2 ± 0...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29792414/hybrid-assembly-of-different-sized-supertetrahedral-clusters-into-a-unique-non-interpenetrated-mn-in-s-open-framework-with-large-cavity
#17
Hongxiang Wang, Wei Wang, Dandan Hu, Min Luo, Chaozhuang Xue, Dongsheng Li, Tao Wu
Reported here is a unique crystalline semiconductor open-framework material built from the large-sized supertetrahedral T4 and T5 clusters with the Mn-In-S compositions. The hybrid assembly between T4 and T5 clusters by sharing terminal μ2 -S2- is for the first time observed among the cluster-based chalcogenide open frameworks. Such three-dimensional structure displays non-interpenetrated diamond-type topology with extra-large nonframework volume of 82%. Moreover, ion exchange, CO2 adsorption, as well as photoluminescence properties of the title compound are also investigated...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29792322/metabolism-of-phenolic-compounds-in-lps-stimulated-raw264-7-cells-can-impact-their-anti-inflammatory-efficacy-indication-of-hesperetin
#18
Yong Ma, Yu He, Taijun Yin, Haoqing Chen, Song Gao, Ming Hu
Raw264.7 is a murine macrophage-like cell line commonly used to study the anti-inflammatory efficacy of natural compounds. However, the impacts of long-time incubation on the tested compounds are often inappropriately ignored. Among 77 natural phenolic compounds (mainly flavonoids), only 36 remain more than 70% after a 15-hour incubation in cell culture medium at 37 °C. Interestingly, for those compounds with a relatively good chemical stability, the presence of Raw264.7 cells could accelerate their disappearance in the medium, indicating that cellular metabolism occurred...
May 24, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29792290/the-use-of-mobile-health-applications-to-improve-patient-experience-cross-sectional-study-in-chinese-public-hospitals
#19
Chuntao Lu, Yinhuan Hu, Jinzhu Xie, Qiang Fu, Isabella Leigh, Samuel Governor, Guanping Wang
BACKGROUND: The proliferation of mobile health apps has greatly changed the way society accesses the health care industry. However, despite the widespread use of mobile health apps by patients in China, there has been little research that evaluates the effect of mobile health apps on patient experience during hospital visits. OBJECTIVE: The purpose of our study was to examine whether the use of mobile health apps improves patient experience and to find out the difference in patient experience between users and nonusers and the characteristics associated with the users of these apps...
May 23, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29792233/antibiotic-resistance-and-molecular-characterization-of-diarrheagenic-escherichia-coli-and-non-typhoidal-salmonella-strains-isolated-from-infections-in-southwest-china
#20
Shun-Xian Zhang, Yong-Ming Zhou, Li-Guang Tian, Jia-Xu Chen, Rita Tinoco-Torres, Emmanuel Serrano, Shi-Zhu Li, Shao-Hong Chen, Lin Ai, Jun-Hu Chen, Shang Xia, Yan Lu, Shan Lv, Xue-Jiao Teng, Wen Xu, Wen-Peng Gu, Si-Tang Gong, Xiao-Nong Zhou, Lan-Lan Geng, Wei Hu
BACKGROUND: Bacterial diarrhea is one of the most common causes for medical consultations, mortality and morbidity in the world. Diarrheagenic Escherichia coli (DEC) and non-typhoidal Salmonella (NTS) are major intestinal pathogens in developing countries, and the indiscriminate use of antibiotics has greatly contributed to resistant strains. Hence, the aim of the present study is to identify the antimicrobial resistance patterns and the molecular characteristics of DEC and NTS in southwest, China...
May 7, 2018: Infectious Diseases of Poverty
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