Abiotic Fauna 738 Flora 738 Processes 664 Absorbance Intensity 216 Acacia Nilotica 556 Acetaldehyde 218 Acetobacter Xylinum

Total Page:16

File Type:pdf, Size:1020Kb

Abiotic Fauna 738 Flora 738 Processes 664 Absorbance Intensity 216 Acacia Nilotica 556 Acetaldehyde 218 Acetobacter Xylinum 829 Index a additives 770 abiotic adenosine triphosphate (ATP) 744 fauna 738 adhesion force 301, 727 flora 738 adiabatic temperature 43 processes 664 adsorbents 457, 599 absorbance intensity 216 adsorbate–adsorbent interaction 96 Acacia nilotica 556 dose 133 acetaldehyde 218 adsorption 130, 135, 369, 373, 393, Acetobacter xylinum 582, 700 698, 724 acetone 237 capabilities 95, 131–135, 137, 138, acetylcholine esterase (AchE) 103 192, 194, 199, 200, 299, 323, liposome bioreactor 531 619, 622, 696, 700, 722, 725, acetylcholinesterase 558 826 acetylthiocholine 531 bioinspired spherical Fe3O4/ acid–base interactions 622, 623 bacterial cellulose acid fuchsine 136 nanocomposites for 700 acid hydrolysis 583 ciprofloxacin 200 acid sites 54 on GS 199 acridine orange (AO) 136 desorption cycles 96, 131 acriflavine (AF) 300 efficiencies 132, 135, 136, 219, 323 acrylamide 331 for Cu(II) and Pb(II) toxic 2-acrylamido-2-methyl-1- ions 133 propanesulfonate acid 612 energy 24, 29, 35 2-acrylamido-2-methyl propane sulfonic equilibrium 131 acid (AMPS) 131 isotherms 193, 200, 201 acrylic acid (AA) 94, 331 kinetics, of tetracycline 202 acrylonitrile 137 mechanism 136 actinomycetes 544 and membrane separation 296 activated carbon (AC) 99, 139, 171, 615 photodegradation effect 666 activated carbon fiber (ACF) 56, 615 of pollutants 666 activated sludge 354, 366 procedure 127, 416, 698 activation energy 619 tetracycline on GS hydrogels 200 active oxygen species 54 advanced oxidation processes 11, 296, acylation 603 652 Nanotechnology in Environmental Science, First Edition. Edited by Chaudhery Mustansar Hussain and Ajay Kumar Mishra. 2018 Wiley-VCH Verlag GmbH & Co. KGaA. Published 2018 by Wiley-VCH Verlag GmbH & Co. KGaA. 830 Index aerogels 192, 200, 204, 584, 589, 591 alkaline phosphatase 527 aerosols 423, 805 alkalinity 727 aflatoxin B1 558 alkoxides 740 Ag/AgCl/WO3 composite system 223 alkylation 603 Ag/AgCl/WO3 photocatalyst 223 alkyl lithium compounds 606 Ag/AgCl/ZnO nanocomposite 696 alkyl lithium reagents 603 Ag-Au bimetallic nanoparticles 301 allergies 664 Ag/Au core–shell nanoprisms 557 Allium cepa 180, 746 Ag-based semiconductor 223 Allium sativum 556 AgBr/Ag3PO4/ceria Al2O3NPs 79 nanocomposites 307 Al2O3 substrates 533 Ag2CdI4/AgI nanocomposites 233 γ-Al2O3-supported catalyst 59 Ag2CdI4 nanoparticles 233 alumina 48 Ag/CNT composites 621 based ceramic membranes 724 Ag-decorated Fe3O4/TiO2-coated clays 661 cenosphere 253 coated magnetite nanoparticles Ag film nanoneedle array 492 (Fe3O4/Al2O3)96 agglomeration 195, 197, 198, 333, 663, NP-immobilized-DNPH (2,4- 739, 740, 764 dinitrophenylhydrazine) 95 nanoparticles 400 template 492 processes 232 aluminum 661 aggregation 233, 827 based materials 227 structure 495 doped materials 225 aging 167 American Society for Testing and Ag ions 230 Materials (ASTM) 655 Ag-modified BiVO4 composite 307 amidation reaction 603 Ag2MoO4 and Ag-Ag2MoO4, amines 139 characterization 494 aminesilanes 591 Ag nanoclusters (AgNCs) 557 4-aminoantipyrine (4-AAP) 107 Ag nanoparticles 218, 230, 252, 253 aminomethyl phosphonic acid 335 degradation efficiency 559 p-aminophenol (p-AP) 301 mechanism of formation 521 3-aminopropylethoxysilane 623 Ag3PO4-based photocatalysts 254 3-aminopropylmethyl- agriculture 127, 761 diethoxysilane 623 Ag/TiO2 nanotube plates, coated with 3-aminopropyltriethoxysilane 94, 623 RGO as photocatalysts 250 3-aminopropyltrimethoxysilane 607 Ag–ZnO hybrid heterostructures 247 aminosilanes 591 Ag–ZnO hybrid photocatalysts 246 ammonia (NH3) 54, 139, 367, 446, air gap membrane distillation 362 532, 621, 622 air pollutants 138 adsorption capacity 622 air pollution 42, 414 ammonia bisulfate (ABS) 54 Al-based composites 416 ammonium hydroxide 332 AlB10 nanoparticles 416 ammonium pyrrolidine aldrin 303 dithiocarbamate 141 algal blooms 294 ammonium sulfate 372 alginates 535, 695 Amomum subulatum 554 aliphatic polyester 668 amorphous boron 416 alkali metals 419 amorphous microporous MnO2 earth metals 45 nanosheets 303 Index 831 amperometric acetylcholinesterase arsenate ions 401 (AChE) 530 arsenic 302, 401, 402, 524, 686 amphotericin B lipid complex immobilization 302 (ABLC) 783 removal, pilot-scale system 404 Anacardium occidentale 553 species As(III) and As(V) 134 analytical applications artificial photosynthesis 774, 775 methods, enable monitoring of artificial seawater 728 hazardous substances 581 asbestos 742 separation and removal, inorganic ascorbic acid 96, 194 species and organic ascorbyl palmitate 791 molecules 85 aseptic application 392 analytical nanoscience and Aspergillus fumigatus 810 nanotechnology assembled nanostructures, SEM (AN&N) 581 images 496 anatase–rutile transformation 243 ASTM D6866 standard testing anatase to rutile transition 240 method 655 anion–cation interaction 136 atomic arrangement 27 anionic dyes 136 atomic force microscopy (AFM) 133, removal of 585 301, 396, 495, 550 anion membrane 364 atrazine 401 anisotropy 231 Au-doped PdO NPs, photcatalysis anode materials 297 process 219 anodic stripping linear sweep Au/GO/ZnO composite voltammetry (ASLSV) 91 nanostructures 248 anodic stripping voltammetric Au/GO/ZnO hybrid photocatalyst (ASV) 92 246 anodized iron 661 Au/GO/ZnO nanostructures anthracene 556 composite 246 anthraquinone (AQ) 93 Au/graphene quantum dots/ferroferric anthropogenic activities 141 oxide composite 300 antibacterial coatings 790 Au nanoparticles 42, 222, 301, 560 antibiotics 300 AuNP–antibody conjugates 558 antifullerene IgG monoclonal AuNP–CaCO3 hybrid material 558 antibody 605 AuNPs, as chemical sensor 524 antimicrobial nanotechnology 778 AuNPs, by fungus Trichothecium antimicrobial packaging 781 sp. 809 antioxidant activity 220 biofunctionalized AuNPs 549 antioxidant properties 737 incorporated enzymes 781 apoptosis 554 metallic 544 apparent quantum efficiency TEM images of 80 (AQE) 258 Au@Pd core–shell with different shapes aquifers 294 TEM-EDS analysis and schematic Arabidopsis thaliana 154 diagram of 487 arc-discharge 417, 764, 765 Au-Pd/rGO composite 300 archaebacteria 583 Au/TiO2 photocatalyst 249 aromatic compound, ionizable 620 Au–TiO2/SiO2 nanocomposite 222 aromatic hydrocarbons 666 Au/ZnO hollow-sphere monolayer thin aromatic organic molecules 138 films, and photocatalytic array structure 491 properties 247 832 Index Au-ZnO hybrid nanopyramids 246 benzotriazole (BTA) 106 Au–ZnO hybrid photocatalysts 245 BET isotherms 192 Au-ZnO NPs Bi-based semiconductors 256 hybrid NPs 245 bicarbonates removal, pilot-scale TEM image of 246 system 404 average pore diameters of GS0, GS1, bicrystalline phase Cr-TiO2 GS4, and GS8 199 nanoparticles 241 Azadirachta indica 554 phase transition studies of 241 azo dyes 664 bienzymatic biosensor 527 biodegradation of 664 bifunctional abilities 827 removal of 663 bifunctional reagent 606 azomethine 606 binding energy 25 bioactive compounds 727 b bioadhesive properties 727 Ba, and Ce oxides 58 bioavailability 166, 727 Baccaurea ramiflora 552 biobased carboxylated NC 590 Bacillus botulinus 558 biobased plastic 655 Bacillus licheniformi 518 BiOBr/NiFe2O4 composite 260 Bacillus megaterium D01 809 photocatalyst 260 backpropagation 421 biochar surface 153–155, 165, 166 bacterial cellulose (BC) 698, 702 pH-dependent dissociation of acid/ aerogel 589 base groups 166 TiO2 hybrid nanofibers, biosynthesis plant growth, effects of 166 route for 704 soil fertility, effects of 155 bacterial nanocellulose (BNC) 582 biochemical oxygen demand sponges, preparation of 589 (BOD) 664 bacteriorhodopsin 726 BiOCl photocatalyst, SEM images Baker’s yeast (Saccharomyces of 257 cerevisiae) 809 biocompatibility 153, 154, 192, 581, ball and powder mixture 766 726 ball milling 417 biocomposite screen-printable bandgap 216, 224, 244, 654, 774 material 528 energy 244, 303 biodegradable 191, 579, 656 semiconductor 244 organic materials 71, 72 Si crystals 719 plastic 655 barium nitrites 57 polymers 658, 668 barrier protection 781 biodistribution 790 basic fuchsin 218 biodiversity 3, 4 batch adsorption method 133 bioelectronics applications 726 batch sorption experiments 193 biofabricated nanoparticles 558 BaTi1xCuxO3 perovskite 62 bioflocculation 675 BC and spherical Fe3O4/BC biofunctionalized AuNPs 549 nanocomposites, digital bioimaging 739 images of 699 materials 667 bentazon 401 BiOI microspheres, thermal conversion bentonite/g-C3N4/Ag3PO4 263 of 240 benzene 138, 372, 615 bioinspired benzophenone-3 (2-hydroxy-4-methoxy functional nanocomposites 698 benzo-phenone) 103 hybrid nanofibers 702 Index 833 magnetically responsive alginate- biopolymers 654–656, 663, 671, based nanocomposites, 673 removal capacity 696 as immobilization supports 662 mineralization methods 696 matrices 726 nanocomposites 685, 687, 692, 706 nanobiohybrids 726 decontamination via photocatalytic supported photocatalysts, for application 702 pollution remediation 662 dispersed phase 687 bioprotein 726 environmental application of 697 bioreceptors 527 nanomaterials 827 bioremediation 584, 651, 724, 778 Pd/Fe3O4, Au/Fe3O4, and PdAu/ biosensors 103, 336, 483, 527, 531 Fe3O4 nanocomposites 704 based on gold nanorods photocatalytic nanocomposites (AuNRs) 530 702 for trace metal ions 525 BiOI powders, pure/heat-treated, SEM biosynthesized images of 241 spherical Fe3O4 698, 699 biological biotemplates 517 applications 727 biotic processes 664 chemicals 294 biotinylated ditryptophan peptide 548 contaminants 737 biotreatment methods 651 materials 693 BiOX-based photocatalysts 256 oxidation 369 biphenyls 543, 650 oxygen bipotentiostatic chronoamperometric demand 71, 369 biosensor 528 biomass 557 bis(2,2-bipyridine)-[4-(4-methyl-2,2-
Recommended publications
  • Hazardous Laboratory Chemicals Disposal Guide
    Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Margaret-Ann Armour LEWIS PUBLISHERS A CRC Press Company Boca Raton London New York Washington, D.C. This edition published in the Taylor & Francis e-Library, 2005. To purchase your own copy of this or any of Taylor & Francis or Routledge’s collection of thousands of eBooks please go to http://www.ebookstore.tandf.co.uk/. Library of Congress Cataloging-in-Publication Data Armour, M.A. (Margaret-Ann) Hazardous laboratory chemicals disposal guide/Margaret-Ann Armour.—3rd ed. p. cm. Includes bibliographical references. ISBN 1-56670-567-3 1. Chemical laboratories—Waste disposal. 2. Hazardous substances. I. Title. QD64.A76 2003 542′.89–dc21 2002043358 This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information, but the authors and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without prior permission in writing from the publisher. The consent of CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must be obtained in writing from CRC Press LLC for such copying. Direct all inquiries to CRC Press LLC, 2000 N.W.
    [Show full text]
  • Microbial Dissolution and Stabilization of Toxic Metals and Radionuclides In
    840 Experientia 46 (1990), Birkh~iuser Verlag, CH-4010 Basel/Switzerland Reviews 34 Trevors, J. T., Stratton, G. W., and Gadd, G. M., Cadmium transport, 38 Tsezos, M., and Volesky, B., The mechanism of uranium biosorption resistance and toxicity in bacteria, algae and fungi. Can. J. Microbiol. by Rhizopus arrhizus. Biotechnol. Bioeng. 24 (1982) 385-401. 32 (1986) 447-464. 39 Wainwright, M., and Grayston, S. J., Accumulation and oxidation of 35 Tsezos, M., Recovery of uranium from biological adsorbents-desorp- metal sulphides by fungi, in: Metal-Microbe Interactions, pp. 119- tion equilibrium. Biotechnol. Bioeng. 26 (1984) 973-981. 130. IRL Press, Oxford 1989. 36 Tsezos, M., Absorption by microbial biomass as a process for removal of ions from process or waste solutions, in: Immobilization of Ions by Bio-sorption, pp. 201-218. Ellis Horwood, Chichester 1986. 37 Tsezos, M., and Volesky, B., Biosorption of uranium and thorium. 0014-4754/90/080834-0751.50 + 0.20/0 Biotechnol. Bioeng. 22 (1981) 583-604. Birkhfiuser Verlag Basel, 1990 Microbial dissolution and stabilization of toxic metals and radionucfides in mixed wastes A. J. Francis Department of Applied Science, Brookhaven National Laboratory, Upton (New York 11973, USA) Summary. Microbial activity in mixed wastes can have an appreciable effect on the dissolution or precipitation of toxic metals and radionuclides. Fundamental information on microbial dissolution and stabilization (immobilization) of toxic metals and radionuclides, in particular actinides and fission products, in nuclear wastes under various microbial process conditions, e.g., aerobic, denitrifying, iron-reducing, fermentative, sulfate-reducing, and methanogenic conditions is very limited. Microbial transformations of typical waste components such as metal oxides, metal coprecipitates, naturally occurring minerals, and metal organic complexes are reviewed.
    [Show full text]
  • Physical and Chemical Properties of Platinum Group Metals 2 Chapter 2 | Physical and Chemical Properties of Platinum Group Metals Contents
    PHYSICAL AND CHEMICAL PROPERTIES OF PLATINUM GROUP METALS 2 CHAPTER 2 | PHYSICAL AND CHEMICAL PROPERTIES OF PLATINUM GROUP METALS CONTENTS 2.1 OVERVIEW OF PGMS 04 2.2 METALLIC PGMS 05 2.3 COMPOUNDS OF PLATINUM GROUP METALS 06 SIMPLE COMPOUNDS 06 COMPLEX COMPOUNDS 07 REFERENCES 13 2 CHAPTER 2 | PHYSICAL AND CHEMICAL PROPERTIES OF PLATINUM GROUP METALS SUMMARY • Six elements of Groups 8, 9, and 10 in the periodic table constitute the platinum group metals (PGMs): platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), iridium (Ir), and osmium (Os). • The physical and mechanical properties of the PGMs and their compounds indicate a wide range of properties with widely varying densities and solubilities (see Table 2-1). • Metallic forms of PGMs are generally considered to be ‘inert’, i.e., not chemically reactive. However, this is dependent in part on dimensional characteristics. Thus, while massive metal forms have low chemical reactivity, fi nely-divided metal powders with high surface area show greater reactivity. • Simple binary compounds exist for each of the PGMs. They also form a vast array of complex coordination compounds in which the central metal atom is bound to a variety of ligands by coordinate bonding, including halides, sulphur, amines, and other atoms and groups. • This unique coordination chemistry has made PGM compounds of great industrial value, but also can have implications for the health of workers exposed to certain of these compounds due to the linkages with biological behaviour and toxicity (see Chapter 6). • The complex halogenated platinum compounds (CHPS) are among those which are industrially and toxicologically important.
    [Show full text]
  • SYNTHESES Volume XIV Editors AARON WOLD JOHN K
    INORGANIC SYNTHESES Volume XIV Editors AARON WOLD JOHN K. RUFF Professor of Engineering Associate Professor of Chemistry and Chemistry University of Georgia Brown University, Providence, R.I. Athens, Ca. INORGANIC SYNTHESES Volume XIV McCRAW-HILL BOOK COMPANY New York St. Louis San Francisco Diisseldorf Johannesburg Kualo Lumpur London Mexico Montreal New Delhi Panama Rio de Janeiro Singapore Sydney Toronto INORGANIC SYNTHESES, VOLUME XIV Copyright 0 1973 by McGraw-Hill, Inc. All Rights Rewved. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise. without the prior written permission of the publisher. Library of Congress Catalog Card Number 39-23015 07-07 1320-0 1234567890 KPKP 76543 To RONALD NYHOLM and DAVID WADSLEY CONTENTS Reface ........................................... xi Notice to Contributors ................................... xiii Chapter One PHOSPHORUS COMPOUNDS ............... 1 1 . Phosphine ....................................... 1 2 . tert-Butyldichlorophosphineand Di-tert-butylchlorophosphinc......... 4 A . tert-Butyldichlorophosphinc ......................... 5 B . Di-tert-butylchlorophosphinc ......................... 6 3. 1.2-Bis(phosphino)ethane ............................. 10 4 . Tctramcthyldiphosphineand Flexible Aliphatic (Dimethylphosphino) Ligands ........................... 14 A . TetramethyldiphosFhine............................. 15 B .
    [Show full text]
  • The Preparation and Characterization of Some Alkanethiolatoosmium Compounds Harold Harris Schobert Iowa State University
    Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1970 The preparation and characterization of some alkanethiolatoosmium compounds Harold Harris Schobert Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Inorganic Chemistry Commons Recommended Citation Schobert, Harold Harris, "The preparation and characterization of some alkanethiolatoosmium compounds " (1970). Retrospective Theses and Dissertations. 4357. https://lib.dr.iastate.edu/rtd/4357 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. 71-14,258 SCHOBERT, Harold Harris, 1943- THE PREPARATION AND CHARACTERIZATION OF SOME ALKANETHIOLATOOSMIUM COMPOUNDS. Iowa State University, Ph.D., 1970 Chemistry, inorganic University Microfilms, A XEROX Company, Ann Arbor, Michigan THIS DISSERTATION HAS BEEH MICROFILMED EXACTLY AS RECEIVED THE PREPARATION AND CHARACTERIZATION OF SOME ALKANETHIOLATOOSMIUM COMPOUNDS by Harold Harris Schobert A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Inorganic Chemistry Approved: Signature was redacted for privacy. Signature was redacted for
    [Show full text]
  • Hazardous Laboratory Chemicals Disposal Guide
    Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Third Edition HAZARDOUS LABORATORY CHEMICALS DISPOSAL GUIDE Margaret-Ann Armour LEWIS PUBLISHERS A CRC Press Company Boca Raton London New York Washington, D.C. This edition published in the Taylor & Francis e-Library, 2005. To purchase your own copy of this or any of Taylor & Francis or Routledge’s collection of thousands of eBooks please go to http://www.ebookstore.tandf.co.uk/. Library of Congress Cataloging-in-Publication Data Armour, M.A. (Margaret-Ann) Hazardous laboratory chemicals disposal guide/Margaret-Ann Armour.—3rd ed. p. cm. Includes bibliographical references. ISBN 1-56670-567-3 1. Chemical laboratories—Waste disposal. 2. Hazardous substances. I. Title. QD64.A76 2003 542′.89–dc21 2002043358 This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information, but the authors and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage or retrieval system, without prior permission in writing from the publisher. The consent of CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must be obtained in writing from CRC Press LLC for such copying. Direct all inquiries to CRC Press LLC, 2000 N.W.
    [Show full text]
  • Insights Into the Electronic Structure of $ {\Rm Oso} 2$ Using Soft and Hard
    PHYSICAL REVIEW MATERIALS 3, 025001 (2019) Insights into the electronic structure of OsO2 using soft and hard x-ray photoelectron spectroscopy in combination with density functional theory Anna Regoutz,1,* Alex M. Ganose,2,3,4 Lars Blumenthal,1,5 Christoph Schlueter,3,† Tien-Lin Lee,3 Gregor Kieslich,6 Anthony K. Cheetham,7 Gwilherm Kerherve,1 Ying-Sheng Huang,8,‡ Ruei-San Chen,9 Giovanni Vinai,10 Tommaso Pincelli,10 Giancarlo Panaccione,10 Kelvin H. L. Zhang,11 Russell G. Egdell,12 Johannes Lischner,1,5 David O. Scanlon,2,3,4 and David J. Payne1,§ 1Department of Materials, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom 2Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom 3Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom 4Thomas Young Centre, University College London, Gower Street, London WC1E 6BT, United Kingdom 5Thomas Young Centre for Theory and Simulation of Materials, United Kingdom 6Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching, Germany 7Functional Inorganic and Hybrid Materials Group, Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom 8Department of Electric Engineering, National Taiwan University of Science and Technology, Taipei 6, Taiwan 9Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan 10Laboratorio
    [Show full text]
  • Increase in Osmiophilia of Axonal Membranes of Crayfish As a Result of Electrical Stimulation, Asphyxia, Or Treatment with Reducing Agents
    INCREASE IN OSMIOPHILIA OF AXONAL MEMBRANES OF CRAYFISH AS A RESULT OF ELECTRICAL STIMULATION, ASPHYXIA, OR TREATMENT WITH REDUCING AGENTS CAMILLO PERACCHIA and J . DAVID ROBERTSON From the Department of Anatomy, Duke University Medical Center, Durham, North Carolina 27706. Dr. Peracchia's present address is the Department of Physiology, University of Rochester Medical Center, Rochester, New York 14642 ABSTRACT Certain axonal membranes of crayfish abdominal nerve cord display ultrastructural changes if the axons are fixed, during electrical stimulation, by aldehydes followed by osmium . Such changes are characterized by an increase in electron opacity and thickness of the unit membranes' dense strata in the axon surface, endoplasmic reticulum, and outer mitochon- drial membranes . The electron opacity completely disappears if the sections are treated with hydrogen peroxide solutions . This suggests that the changes represent an increase in the membranes' reactivity for osmium . An unmasking of SH groups could explain such increased osmiophilia, since SH groups are very reactive with osmium, while disulfide bonds are considerably less reactive . This hypothesis was tested by treating control, glutaraldehyde- fixed nerve cords with disulfide reducing agents . In these preparations an increase in electron opacity and thickness was observed to be localized in the same axonal membranes which reacted as a result of electrical stimulation . The phenomenon did not appear if the SH groups were blocked by maleimide or N-ethylmaleimide before treatment with osmium . These findings seem to suggest that certain axonal membranes of crayfish contain proteins rich in sulfur whose SH groups are unmasked as a result of electrical stimulation. In pre- liminary experiments an increase in osmiophilia localized in the same membranes with the same characteristics and distribution was observed also in axons from nerve cords asphyxi- ated either in vitro or in the living animal .
    [Show full text]
  • A Mehtod for the Seperation and Gravimetric Determination of Osmium
    . 1 RP286 A METHOD FOR THE SEPARATION AND GRAVIMETRIC DETERMINATION OF OSMIUM By Raleigh Gilchrist ABSTRACT A procedure for the separation and gravimetric determination of osmium is described. This procedure involves the separation of osmium from other metais by distillation as the volatile tetroxide and its recovery from solution by hydro- lytic precipitation. A very suitable reagent for the quantitative absorption of the distilled tetroxide was found to be 6 normal hydrochloric acid saturated with sulphur dioxide. The recovery of osmium was accomplished by precipitating the hydrated dioxide from a boiling solution at acidities ranging from pH 1.5 to 6.3, after sulphite compounds had been decomposed by repeated evaporation with hydrochloric acid. The hydrated dioxide was impregnated with ammonium chloride to prevent mechanical loss when ignited to metal under hydrogen. The thiourea test devised b}' Chugaev for the detection of small quantities of osmium was modified so that it could be applied to solutions containing nitric acid. The test was found to be sensitive to 1 part in 5,000,000 parts of solution, which is 50 times as sensitive as stated by Chugaev, CONTENTS Page I. Introduction 422 1. Method of Ruff and Bornemann 425 2. Method of Ogburn and Miller 426 II. Object of the investigation 427 III. Preparation of osmium compounds for use in the experiments 428 IV. Precipitation of hydrated osmium dioxide by hydrolysis 430 V. Effect of exposure of osmium sponge to the air 430 VI. Qualitative experiments to determine the completeness of pre- cipitation of hydrated osmium dioxide 43 VII. Detection of minute quantities of osmium by reaction with thiourea 43 VIII.
    [Show full text]
  • Fingerprint Source Book Chapter 5 Alternative Finger Mark
    Fingerprint Source Book – Chapter 5: Alternative finger mark development techniques Chapter 5: Alternative finger mark development techniques 5.1 Alternative blood enhancement techniques 1. History 1.1 The history of the development of blood dyes has been outlined in Chapter 3.1, Acid dyes, of this Fingerprint Source Book. 2. Theory 2.1 General theory 2.1.1 The theory associated with the action of protein stains (in particular the acid dyes), in enhancing traces of blood is described in Chapter 3.1, Acid dyes (acid black 1, acid violet 17, acid yellow 7). 2.1.2 There are other reagents that react with the amines present in blood to give coloured or fluorescent products, the most well known of these being ninhydrin and 1,8-diazafluoren-9-one (DFO). They both react similarly with amino acids to form products that contain two deoxygenated molecules of the starting product bridged by a nitrogen atom, which is donated from the amine [1,2]. O O N N - N - N O O N N The reaction products with ninhydrin (left) and 1,8-diazafluoren-9-one (right) and amines. 2.1.3 While the reaction mechanisms and products have similarities, the method of their visualisation is entirely different. Ninhydrin, under the right conditions, produces an intensely coloured product called ‘Ruhemann’s purple’ after the discoverer and DFO a pale pink, extremely fluorescent product. Ruhemann’s purple can be made to fluoresce by complexing it with metal salts but this additional process is still not as sensitive as DFO [3]. DFO requires heat for the reaction to proceed [4] while ninhydrin will react at room temperature provided moisture is available, although the process proceeds much faster at elevated temperatures and humidities.
    [Show full text]
  • BCA Schedule
    C Chemistry C38E C Chemistry Chemistry C * Chemical phenomena and the associated human activities Science of science of chemistry C29 X focused upon them, treated at the most general level. C2A * For applied chemistry, see Process industrial technology . Philosophy of chemistry (in Class U/V). An alternative location (not C2L X . Scientific method in chemistry * recommended) for applied chemistry is provided at CY Methodology in the most abstract sense. * for libraries wishing to collocate the technology with For practical methods and procedures, see C36. chemistry in Class C. C2M . Mathematics in chemistry C2 . Common subdivisions C2V J .. Topology in chemistry * Add to C2 numbers 2/9 in Auxiliary Schedule 1 with C2X . Statistics & probability in chemistry the same additions & modifications as in AY2 2/9; eg General operations & agents in chemistry C22 .. Forms of presentation * Add to C numbers & letters 2YM/82D following AY, C23 G ... Serials with the modifications indicated at C33/34. P ... Technical data C2Y Q . Organization & management of work in chemistry .. Persons in the subject QS .. Operational research C24 ... Chemists * See also Biography C29 2 C33 Common properties C .... Profession of chemistry D . Distribution * For education & training, see C26 A. W . Continuity C25 .. Organizations in chemistry X . Conditions L .. Communication & information in chemistry Y5 .. Electric field LO ... Terminology YG .. Systems characteristics * For nomenclature, see compounds CGH 25L O. C34 . Theoretical chemistry P ... Documentation in chemistry * As distinct from practical chemistry. Classify more VA .... Information services in chemistry specifically if possible. The term is sometimes used VB ..... Computerized information services as synonymous with quantum chemistry (see C26 A .
    [Show full text]
  • Material Safety Data Sheet
    Material Safety Data Sheet bis(tert-Butylimido)osmium dioxide ACC# 09726 Section 1 - Chemical Product and Company Identification MSDS Name: bis(tert-Butylimido)osmium dioxide Catalog Numbers: AC375710000, AC375710100, AC375710500 Synonyms: Company Identification: Acros Organics N.V. One Reagent Lane Fair Lawn, NJ 07410 For information in North America, call: 800-ACROS-01 For emergencies in the US, call CHEMTREC: 800-424-9300 Section 2 - Composition, Information on Ingredients CAS# Chemical Name Percent EINECS/ELINCS 63174-13-0 Bis(tert-butylimido)osmium dioxide unlisted Section 3 - Hazards Identification EMERGENCY OVERVIEW Not available. Appearance: orange solid. Not available. Target Organs: None known. Potential Health Effects Eye: May cause eye irritation. Skin: May cause skin irritation. Toxic in contact with skin. Ingestion: May cause irritation of the digestive tract. Toxic if swallowed. Inhalation: May cause respiratory tract irritation. Toxic if inhaled. Chronic: Not available. Section 4 - First Aid Measures Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid imme diately. Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Ingestion: Get medical aid immediately. Wash mouth out with water. Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Notes to Physician: Treat symptomatically and supportively. Section 5 - Fire Fighting Measures General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
    [Show full text]