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https://www.readbyqxmd.com/read/28448024/synthesis-of-hydrogels-with-antifouling-properties-as-membranes-for-water-purification
#1
Thien N Tran, Sankara N Ramanan, Haiqing Lin
Hydrogels have been widely utilized to enhance the surface hydrophilicity of membranes for water purification, increasing the antifouling properties and thus achieving stable water permeability through membranes over time. Here, we report a facile method to prepare hydrogels based on zwitterions for membrane applications. Freestanding films can be prepared from sulfobetaine methacrylate (SBMA) with a crosslinker of poly(ethylene glycol) diacrylate (PEGDA) via photopolymerization. The hydrogels can also be prepared by impregnation into hydrophobic porous supports to enhance the mechanical strength...
April 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447461/diffusion-controlled-recrystallization-of-water-sorbed-into-poly-meth-acrylates-revealed-by-variable-temperature-mid-infrared-spectroscopy-and-molecular-dynamics-simulation
#2
Nobuhiro Yasoshima, Mizuki Fukuoka, Hiromi Kitano, Shigehiro Kagaya, Tatsuya Ishiyama, Makoto Gemmei-Ide
Recrystallization behaviors of water sorbed into four poly(meth)acrylates; poly(2-methoxyethyl acrylate) (PMEA), poly(tetrahydrofurfuryl acrylate) (PTHFA), poly(methyl acrylate) (PMA), and poly(methyl methacrylate) (PMMA), are investigated by variable-temperature mid-infrared (VT-MIR) spectroscopy and molecular dynamics (MD) simulation. VT-MIR spectra demonstrate that recrystallization temperatures of water sorbed into the polymers are positively correlated with their glass transition temperatures reported previously...
April 27, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28445899/evidence-based-guidelines-for-the-pharmacologic-management-of-methamphetamine-dependence-relapse-prevention-chronic-methamphetamine-related-and-comorbid-psychiatric-disorders-in-post-acute-settings
#3
Roland Härtel-Petri, Anne Krampe-Scheidler, Wolf-Dietrich Braunwarth, Ursula Havemann-Reinecke, Peter Jeschke, Winfried Looser, Stephan Mühlig, Ingo Schäfer, Norbert Scherbaum, Lydia Bothe, Corinna Schaefer, Willem Hamdorf
The increasing abuse of the street drug crystal meth (methamphetamine) in many countries worldwide has resulted in a growing demand to treat patients who have acquired a methamphetamine-related disorder. The results of a systematic literature search which led to the consensus-based recommendations by the Working Group of the German Agency for Quality in Medicine (Ärztliches Zentrum für Qualität in der Medizin - ÄZQ) are presented. Pharmacological treatments were reviewed in 58 out of the 103 publications included...
April 26, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28441274/-meth-mouth-an-interdisciplinary-review-of-a-dental-and-psychiatric-condition
#4
Cornel N Stanciu, Magdalena Glass, Brian C Muzyka, Oliver M Glass
OBJECTIVE: Chronic methamphetamine (MA) users experience many dental problems, a condition characterized as "meth mouth." These devastating effects on dentition is the main reason why many seek professional help. Here, we discuss the effects of MA on oral health and advocate for improved collaboration between dentists and mental health providers. We also introduce a dental evaluation tool with the goal of improving the quality of care for this often-marginalized patient population. METHODS: A Medline literature search (1985-2016) was conducted with keywords "meth mouth," "methamphetamine AND oral health"; "methamphetamine AND dental"; "methamphetamine AND dentist...
April 24, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28435739/crystal-structure-of-cu-tmpen-bf4-2-tmpen-is-n-n-n-n-tetra-kis-6-methyl-pyridin-2-yl-meth-yl-ethane-1-2-di-amine
#5
Lin Chen, Yakun Guo, Gan Ren, Ge Sang
The mononuclear copper title complex {N,N,N',N'-tetra-kis-[(6-methyl-pyridin-2-yl)meth-yl]ethane-1,2-di-amine-κ(6)N}copper(II) bis-(tetra-fluorido-borate), [Cu(C30H36N6)](BF4)2, is conveniently prepared from the reaction of Cu(BF4)2·6H2O with N,N,N',N'-tetra-kis-[(6-methyl-pyridin-2-yl)meth-yl]ethane-1,2-di-amine (tmpen) in aceto-nitrile at room temperature in air. The complex shows a distorted octa-hedral environment around the Cu(II) cation (site symmetry 2) and adopts the centrosymmetric space group C2/c...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435726/crystal-structure-of-2-aza-niumylmeth-yl-pyridinium-bis-hydrogen-squarate
#6
Nina Salamzadeh, Zeynep Demircioglu, Ufuk Korkmaz, Orhan Büyükgüngör
The asymmetric unit of the title compound, C6H10N2(2+)·2C4HO4(-), comprises two hydrogen squarate (Hsq(-); systematic name: 2-hy-droxy-3,4-dioxo-cyclo-butano-late) anions and a 2-(aza-niumylmeth-yl)pyridinium dication. The squaric acid mol-ecules each donate an H atom to the N atoms of the pyridine ring and the amino-methyl units of a 2-(amino-meth-yl)pyridine mol-ecule, forming the 1:2 salt. The Hsq(-) anions are linked by strong O-H⋯O hydrogen bonds and an N-H⋯O hydrogen bond links the 2-(aza-niumylmeth-yl)pyridinium cation to one of the squaric acid anions...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435724/crystal-structures-of-two-platinum-ii-complexes-containing-ethyl-eugenoxyacetate-and-2-amino-pyridine
#7
Hai Le Thi Hong, Thao Nguyen Thu, Hien Nguyen, Luc Van Meervelt
In the title complexes, trans-(2-amino-pyridine-κN)di-chlorido-{4-eth-oxy-carbonyl-meth-oxy-3-meth-oxy-1-[(2,3-η)-prop-2-en-1-yl]benzene}-platinum(II), [PtCl2(C5H6N2)(C14H18O4)], (I), and (2-amino-pyridine-κN)chlorido{5-eth-oxy-car-bon-yl-meth-oxy-4-meth-oxy-1-[(2,3-η)-prop-2-en-1-yl]phenyl-κC(1)}-platinum(II), [Pt(C14H17O4)Cl(C5H6N2)], (II), the central Pt(II) metal atom displays a distorted square-planar coordination, with the Pt(II) atom coordinated by the pyridine N atom, the C=C double bond of the eugenol ligand and two Cl atoms for (I) or one Cl atom and a C atom of the phenyl ring for (II)...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435710/inter-action-between-maleic-acid-and-n-r-furfuryl-amines-crystal-structure-of-2-methyl-n-5-phenyl-furan-2-yl-meth-yl-propan-2-aminium-2z-3-carb-oxy-acrylate-and-n-5-iodo-furan-2-yl-meth-yl-2-methyl-propan-2-aminium-2z-3-carb-oxy-prop-2-enoate
#8
Elisaveta A Kvyatkovskaya, Vladimir P Zaytsev, Fedor I Zubkov, Pavel V Dorovatovskii, Yan V Zubavichus, Victor N Khrustalev
The title mol-ecular salts, C15H20NO(+)·C4H3O4(-), (I), and C9H15INO(+)·C4H3O4(-), (II), have very similar mol-ecular geometries for both cation and anion. The anions of both (I) and (II) are practically planar (r.m.s. deviations = 0.062 and 0.072 Å, respectively) and adopt a rare symmetrical geometry with the hy-droxy H atom approximately equidistant from the two O atoms. In their crystals, the cations and anions in both (I) and (II) form tight ionic pairs via strong N-H⋯O hydrogen bonds, with a roughly perpendicular disposition of the anion to the furan ring of the cation...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435709/crystal-and-mol-ecular-structure-of-2z-5z-3-2-meth-oxy-phen-yl-2-2-meth-oxy-phen-yl-imino-5-4-nitro-benzyl-idene-thia-zolidin-4-one
#9
Ahmed Djafri, Abdelkader Chouaih, Jean-Claude Daran, Ayada Djafri, Fodil Hamzaoui
In the title compound, C24H19N3O5S, the thia-zole ring (r.m.s. deviation = 0.012 Å) displays a planar geometry and is surrounded by three fragments, two meth-oxy-phenyl and one nitro-phenyl. The thia-zole ring is almost in the same plane as the nitro-phenyl ring, making a dihedral angle of 20.92 (6)°. The two meth-oxy-phenyl groups are perpendicular to the thia-zole ring [dihedral angles of 79.29 (6) and 71.31 (7)° and make a dihedral angle of 68.59 (7)°. The mol-ecule exists in an Z,Z conformation with respect to the C=N imine bond...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435707/crystal-structure-of-methyl-4r-4-4-meth-oxy-benzo-yl-4-1r-1-phenyl-eth-yl-carbamo-yl-butano-ate
#10
Alejandro Manchado, Mateo M Salgado, Álvaro Vicente, David Díez, Francisca Sanz, Narciso M Garrido
The title compound, C22H25NO5, was prepared by CAN [cerium(IV) ammonium nitrate] oxidation of the corresponding β-lactam. The dihedral angle between the benzene rings is 13.3 (4)° and the C-N-C(=O)-C torsion angle is 176.1 (6)°. In the crystal, amide-C(4) N-H⋯O and reinforcing C-H⋯O hydrogen bonds link the mol-ecules into infinite [010] chains. Further C-H⋯O hydrogen bonds cross-link the chains in the c-axis direction.
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435703/crystal-structure-of-bromido-fac-tricarbon-yl-5-3-4-5-tri-meth-oxy-phen-yl-3-pyridin-2-yl-1h-1-2-4-triazole-%C3%AE%C2%BA-2-n-2-n-3-rhenium-i-methanol-monosolvate
#11
Marharyta I Kharlova, Kseniia O Piletska, Kostiantyn V Domasevitch, Alexander V Shtemenko
In the title compound, [ReBr(C16H16N4O3)(CO)3]·CH3OH, the Re(I) atom adopts a distorted octa-hedral coordination sphere with a facial arrangement of the three carbonyl ligands. Two N atoms of the chelating 5-(3,4,5-tri-meth-oxy-phen-yl)-3-(pyridin-2-yl)-1H-1,2,4-triazole ligand and two carbonyl ligands define the equatorial plane of the complex, with the third carbonyl ligand and the bromide ligand in axial positions. Conventional hydrogen bonds including the methanol solvent mol-ecules assemble the complex mol-ecules through mutual N-H⋯O-H⋯Br links [N⋯O = 2...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28435702/synthesis-and-crystal-structure-of-bis-%C3%AE-2-methyl-benzene-thiol-ato-%C3%AE%C2%BA-2-s-s-bis-meth-yl-2-methyl-benzene-thiol-ato-%C3%AE%C2%BAs-indium-iii
#12
Glen G Briand, Andreas Decken, Courtney M Dickie, Gregory MacNeil
The dinuclear title compound, [In2(CH3)2(C7H7S)4] or [Me(2-MeC6H4S)In-μ-(2-MeC6H4S)2InMe(2-MeC6H4S)], was prepared from the 1:2 reaction of Me3In and 2-MeC6H4SH in toluene. Its crystal structure exhibits a four-membered In2S2 ring core via bridging (2-MeC6H4S) groups. The dimeric units are further associated into a one-dimensional polymeric structure extending parallel to the a axis via inter-molecular In⋯S contacts. The In atoms are then in distorted trigonal-bipyramidal CS4 bonding environments.
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28427374/prenatal-determinants-of-physical-activity-and-cardiorespiratory-fitness-in-adolescence-northern-finland-birth-cohort-1986-study
#13
Marjaana Tikanmäki, Tuija Tammelin, Marja Vääräsmäki, Marika Sipola-Leppänen, Satu Miettola, Anneli Pouta, Marjo-Riitta Järvelin, Eero Kajantie
BACKGROUND: Lower levels of physical activity and cardiorespiratory fitness are key risk factors of chronic adult diseases. Physical activity and cardiorespiratory fitness are predicted by birth weight, but the underlying parental and pregnancy-related factors remain largely unknown. We examined how prenatal determinants are associated with physical activity and cardiorespiratory fitness in adolescence. METHODS: Of the 16-year-old members of the population-based Northern Finland Birth Cohort 1986 (NFBC 1986), 6682 singletons with no major physical disability reported their amount of physical activity outside school hours, and 4706 completed a submaximal cycle ergometer test assessing cardiorespiratory fitness...
April 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28425304/preparation-and-evaluation-of-1-deoxynojirimycin-sustained-release-pellets-vs-conventional-immediate-release-tablets
#14
Zhaoying Sun, Shujie Yuan, Huanan Zhao, Zhenyang Wang, Zhiming Liu
1-deoxynojirimycin sustained-release pellets, which exhibit known release and absorption profiles, are used for the treatment of diabetes mellitus. In this study, a fluidized bed coater was employed to prepare new, drug-loaded pellets. In the dissolution test, it was found that 1-DNJ pellets exhibited a sustained release effect after being coated with .hydroxypropyl methely cellulose phthalate-55S. For sustained-release pellets and immediate-release pellets, there was significant difference in the mean cumulative drug concentration profile in different media evaluation...
April 20, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28421529/suppression-of-methamphetamine-self-administration-by-ketamine-pre-treatment-is-absent-in-the-methylazoxymethanol-mam-rat-model-of-schizophrenia
#15
Jana Ruda-Kucerova, Zuzana Babinska, Tibor Stark, Vincenzo Micale
Ketamine may prove to be a potential candidate in treating the widespread drug addiction/substance abuse epidemic among patients with schizophrenia. Clinical studies have shown ketamine to reduce cocaine and heroin cravings. However, the use of ketamine remains controversial as it may exacerbate the symptoms of schizophrenia. Therefore, the aim of this study is to characterize the effects of ketamine on drug addiction in schizophrenia using the methylazoxymethanol (MAM) acetate rat model on operant IV methamphetamine (METH) self-administration...
April 18, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28406296/light-mediated-atom-transfer-radical-polymerization-of-semi-fluorinated-meth-acrylates-facile-access-to-functional-materials
#16
Emre H Discekici, Athina Anastasaki, Revital Kaminker, Johannes Willenbacher, Nghia P Truong, Carolin Fleischmann, Bernd Oschmann, David J Lunn, Javier Read de Alaniz, Thomas P Davis, Christopher M Bates, Craig J Hawker
A highly efficient photomediated atom transfer radical polymerization protocol is reported for semi-fluorinated acrylates and methacrylates. Use of the commercially available solvent, 2-trifluoromethyl-2-propanol, optimally balances monomer, polymer, and catalyst solubility while eliminating transesterification as a detrimental side reaction. In the presence of UV irradiation and ppm concentrations of copper(II) bromide and Me6-TREN (TREN = tris(2-aminoethyl amine)), semi-fluorinated monomers with side chains containing between three and 21 fluorine atoms readily polymerize under controlled conditions...
April 13, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28405277/a-hidden-markov-movement-model-for-rapidly-identifying-behavioral-states-from-animal-tracks
#17
Kim Whoriskey, Marie Auger-Méthé, Christoffer M Albertsen, Frederick G Whoriskey, Thomas R Binder, Charles C Krueger, Joanna Mills Flemming
Electronic telemetry is frequently used to document animal movement through time. Methods that can identify underlying behaviors driving specific movement patterns can help us understand how and why animals use available space, thereby aiding conservation and management efforts. For aquatic animal tracking data with significant measurement error, a Bayesian state-space model called the first-Difference Correlated Random Walk with Switching (DCRWS) has often been used for this purpose. However, for aquatic animals, highly accurate tracking data are now becoming more common...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28403074/anxiety-level-and-correlates-in-methamphetamine-dependent-patients-during-acute-withdrawal
#18
Hang Su, Jie Zhang, Wenwei Ren, Ying Xie, Jingyan Tao, Xiangyang Zhang, Jincai He
Anxiety is often a core element of withdrawal symptoms; however, risk factors associated with anxiety symptoms during the early stage of withdrawal in methamphetamine (METH) users are not well understood. Two hundred ten METH-dependent subjects who had been abstinent for 1 to 7 days were recruited. We used a set of self-administrative questionnaires eliciting information on sociodemographics, detailed drug use history and anxiety. Beck Anxiety Inventory (BAI) was used to measure anxiety symptoms. METH users had a mean BAI score of 6...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28400844/effects-of-electroacupuncture-on-methamphetamine-induced-behavioral-changes-in-mice
#19
Tsung-Jung Ho, Chiang-Wen Lee, Zi-Yun Lu, Hsien-Yuan Lane, Ming-Horng Tsai, Ing-Kang Ho, Chieh-Liang Huang, Yao-Chang Chiang
Methamphetamine (METH) is a major drug of abuse worldwide, and no efficient therapeutic strategies for treating METH addiction are currently available. Continuous METH use can cause behavioral upregulation or psychosis. The dopaminergic pathways, particularly the neural circuitry from the ventral tegmental area to the nucleus accumbens (NAc), have a critical role in this behavioral stage. Acupuncture has been used for treating diseases in China for more than 2000 years. According to a World Health Organization report, acupuncture can be used to treat several functional disorders, including substance abuse...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28399475/everyday-functional-ability-in-hiv-and-methamphetamine-dependence
#20
Arpi Minassian, Brook L Henry, Jennifer E Iudicello, Erin E Morgan, Scott L Letendre, Robert K Heaton, William Perry
BACKGROUND: Methamphetamine (METH) use is a risk factor for the transmission of HIV. Each is associated with neurocognitive impairment and subsequent problems in everyday functioning, yet additive effects of HIV and METH are not consistently observed. This study used the UCSD Performance-Based Skills Assessment (UPSA-2) to assess whether METH use disorder and HIV together resulted in poorer functional outcome than either condition alone. METHOD: Participants in the Translational Methamphetamine AIDS Research Center (TMARC) cohort were stratified based upon HIV infection and METH use disorder: HIV-/METH- (n=49), HIV-/METH+ (n=48), HIV+/METH- (n=37), and HIV+/METH+ (n=38)...
March 28, 2017: Drug and Alcohol Dependence
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