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References Chen, J. & Yiacoumi, S. (1997). Biosorption of Metal Ions from Aqueous Solutions. Sep. Sci. Technol. , 32, 51 - 69. Chen, J., Tendeyong, F. & Yiacoumi, S. (1997). Equilibrium and Kinetic Studies of Copper Ion Uptake by Calcium Alginate. Environ. Sci. Technol. 31, 1433 - 1439. Esposito, A., Paganelli, F. & Veglio, F. (2002). pH-related Equilibria Models for Biosorption in Single Metal Systems. Chem. Eng. Sci. 57, 307 - 313. Ibanez, J. P. & Umetsu, Y. (1999). Uptake of Copper from Extremely Dilute Solutions by Alginate Sorbent Material: an

.L., Packer L. 1968. Photoperoxidation in isolated chloroplast. I. Kinetics and stechiometry of fatty acid peroxidation. Arch. Biochemistry & Biophysic 125: 189-198. Janas K.M., Amarowicz R., Zielińska-Tomaszewska J., Kosińska A., Posmyk M. 2009. Induction of phenolic compounds in two dark-grown lentil cultivars with different tolerance to copper ions. Acta Physiol. Plant. 31: 587-595. Ke W., Xiong Z., Xie M., Luo Q. 2007. Accumulation, subcellular location and ecophysiological responses to copper stress in two Daucus carota L. populations. Plant Soil 292: 291-304. Konno

NOTIZEN 689 Table II. Comparison of crystal data for bismuth sulphide halides of the type B i19S27X 3 (X: Cl, Br, I). Formula B i19S2:C13 B ii9S27Br3 B i19S27I3 a A 15.403 (3) 15.486 (2) 15.640 (2) c A 4.015 (2) 4.018 (1) 4.029 (2) V A3 824.8 834.4 853.4 Z 2/3 2/3 2/3 £>meas gem-3 6.53 6.65 6.72 ßcalcd gem-3 6.63 6.73 6.76 The crystal structure of Bi19S27I 3 has been deter­ mined by M i e h e and K u p c i k 2. The close resem- The Role of Copper Ions in Copper Catalyzed Autoxidation of Sulfite J o s e f V e p ř e k - Š i š k a and S t a n i s l a v L u ň á

1 Introduction Clean water resources are requisite for the ecological environment. Due to the booming industries for metal smelting, electroplating, printed circuit board, and others, the amount of wastewater discharge containing copper ions has been increased substantially, resulting in the pollution of a large amount of soil and surface water and jeopardizing the environment [ 1 ]. Copper ions are widely dispersed, difficult to degrade, and are eventually captured by animals and plants through bioaccumulation, or get into human bodies through the food chain

( Ackerman and Chang, 2018 ). As a result, we conclude that Zn 2+ and Cu 2+ are key metal ions in the brain, and the homeostasis of these ions plays an important role in the mechanisms of neuronal functions. Neurocytotoxicity of zinc and copper ions As follows from the previous section, the maintenance of Zn 2+ and Cu 2+ homeostasis in the brain is very important, and deviations from it can be fatal for neurons ( Adlard et al., 2010 ; Isaev et al., 2010 , 2012a ; Ayton et al., 2013 ). Disruption of their intracellular balance can cause increased production of free

1 e-Polymers 2010, no. 017 http://www.e-polymers.org ISSN 1618-7229 Preparation of submicron ion-exchange fibers and application in copper ions removal from aqueous solutions Shuqin Feng,1 2 Xinyuan Shen,1 2* 1State Key Laboratory for Modification of Chemical Fibers & Polymer Materials, Donghua University. 2*College of Material Science and Engineering, Donghua University, 2999W. Renming North Rd, Shanghai 201620, P. R. China; E-mail: shenxinyuan@mial. dhu.cn (Received: 18 October, 2009; published: 21 February, 2010) Abstract: The

Z. Phys. Chem. 221 (2007) 1469–1478 / DOI 10.1524/zpch.2007.221.11–12.1469 © by Oldenbourg Wissenschaftsverlag, München Resistive Switching in Ge0.3Se0.7 Films by Means of Copper Ion Migration By C. Schindler1 , ∗, X. Guo1, A. Besmehn2, and R. Waser1 1 Institute of Solid State Research and Center of Nanoelectronic Systems for Information Technology, Research Centre Jülich, D-52425 Jülich, Germany 2 Central Division of Analytical Chemistry, Research Centre Jülich, D-52425 Jülich, Germany Dedicated to Prof. Dr. Konrad G. Weil on the occasion of his 80th birthday

detergents on the development of chitons, Author's abstract, Vladivostok. (in Russian) 25. Yaroslavtseva L. M. and Sergeeva E. P., 2005 – Influence of copper ions on the early stages of development of the Pacific mussel Mytilus trossulus, Institute of Marine Biology, Far East Branch, Russian Academy of Sciences, Marine Biology , 31, 4, 267-273. (in Russian) 26. Zaitsev Y. P., Aleksandrov B. G. and Minicheva G. G., 2006 – North-Western part of the Black Sea: biology and ecology, Naukova Dumka, 701s. (in Russian)

Abstract

The binary and ternary complex formations of poly(methyl vinyl ether-co-maleic anhydride) (PMVEMA) with copper ions and with bovine serum albumin (BSA) in the presence of copper ions in phosphate buffer solution at pH = 7 were examined by the techniques of UV-visible, fluorescence, dynamic light scattering, atomic force microscopy measurements. In the formation of binary complexes of PMVEMA-Cu(II), the addition of copper ions to the solution of PMVEMA in phosphate buffer solution at pH = 7 forms homogeneous solutions when the molar ratio of Cu(II)/MVEMA is 0.5. Then the formations of ternary complexes of PMVEMA-Cu(II)-BSA were examined. Study analysis revealed that the toxicities of polymer-metal and polymer-metal-protein mixture solutions depend on the nature and ratio of components in mixtures.

Copper Ion Inhibition of Electron Transport Activity in Sodium Chloride Washed Photosystem II Particle Is Partially Prevented by Calcium Ion Surendra Chandra Sabat Environmental Biology Unit, Institute of Life Sciences, Plot - 301, Sahid Nagar, Bhubaneswar - 751007, Orissa, India Z. Naturforsch. 51c, 179-184 (1996); received September 26, 1995 Calcium Ion. Copper Inhibition, Electron Transport, Photosystem II Particles, Spinach (Beta vulgaris) The inhibitory effects of copper ion (Cu2+) on the photosynthetic electron transport func­ tion was investigated both