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2 edition of Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L. found in the catalog.

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

Donald Dean Jones

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

  • 33 Want to read
  • 1 Currently reading

Published .
Written in English

    Subjects:
  • Chromosomes.,
  • Genetic recombination.

  • Edition Notes

    Statementby Donald Dean Jones.
    The Physical Object
    Pagination[10], 89 leaves, bound ;
    Number of Pages89
    ID Numbers
    Open LibraryOL14242734M

    THE JOURNAL OF BIOLOGICAL CHEMISTRY 0 by The American Society for Biochemistry and Molecular Biology, Inc. Vol. , No. 3, hue of Janu pp. , Printed in U.S.A. Mechanism of Inhibition of Human Neutrophil Collagenase by Gold(1) Chrysotherapeutic Compounds INTERACTION AT A HEAVY METAL BINDING SITE*.   44 Guo L, Lv G, Qiu L et al. Insights into anticancer activity and mechanism of action of a ruthenium(II) complex in human esophageal squamous carcinoma EC cells. Eur. J. Pharmacol. , 60–71 ().Crossref, Medline, CAS, Google ScholarCited by: l o a u m D n c e p o n a u m D n c e p o n a Different brain regions of (A) (B) hus. (C) tus. Hexokinase activity Normal value Metal treated Metal+Chelating agent treated I indicates ± SDM The sub lethal arsenic exposure and hexokinase variations in presence of zinc as chelating agent were at low level then the. Mammalian cell cultures were used to determine the capacity of antidotes to modify (a) lead uptake, (b) lead toxicity and (c) lead release from cells. The following chelating agents were tested: Na, Ca-ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), nitriloacetic acid, ethylene gl.

    Research Article Structural and Antioxidant Properties of Compounds Obtained from Fe 2+ Chelation by Juglone and Two of Its Derivatives: DFT, QTAIM, and NBO Studies AymardDidierTamafoFouegue, 1 JuliusNumbonuiGhogomu, 1 DésiréBikéléMama, 2 NyiangKennetNkungli, 1 andElieYounang 3 Department of Chemistry, Faculty of Science, Cited by: 5.


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Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L. by Donald Dean Jones Download PDF EPUB FB2

Chelating agents are chemical compounds whose structures permit the attachment of their two or more donor atoms (or sites) to the same metal ion simultaneously and produce one or more rings.

These molecules are also called “chelates” or chelating groups, and the formation of rings is called “chelation.” These metal complexes have the ability to resolve into optically active (R&L). also economically important, both as products in themselves and as agents in the production of other chemicals.

A chelate is a chemical compound composed of a metal ion and a chelating agent. A chelating agent is a substance whose molecules can form several bonds to a single metal ion. In other words, a chelating agent is a multidentate Size: KB.

Chelating Agents Market, By Region. Asia Pacific chelating agents market accounted for more than 40% of the global share in owing to the presence of numerous paper and agrochemical industries in China, India, Japan, and various south east Asia nations.

The region will likely flourish at a CAGR close to 4% in the forecast spell. chelating agents Chemicals that combine with metal ions and remove them from their sphere of action, also called sequestrants. They are used in food manufacture to remove traces of metal ions which might otherwise cause foods to deteriorate and clinically to reduce absorption of a mineral, or to increase its excretion; e.g.

citrates, tartrates, phosphates, and EDTA. Zea mays (maize) can also produce a very high biomass with a fast growth rate and possesses some degree of metal tolerance. A greenhouse study was conducted to investigate the feasibility of using vetiver and maize for remediation of arsenic (As)- zinc (Zn-), and copper (Cu)-amended soils and evaluate the effects of chelating agents on metal Cited by: Influence of chelating agents on the photopolymerization of hybrid Ti-based waveguides Article (PDF Available) in Journal of Materials Chemistry May with 76 Reads.

Chelating Agents - MOA • Heavy metals exert their toxic effects by combining with and inactivating functional groups (ligands) of enzymes and important biomolecules - sulfhydril, hydroxyl, carboxyl etc.

leading to inactivation • Chelating agents compete with body ligands for the heavy metal – also differ in affinity for different metals. Enhanced uptake of As, Zn, and Cu by Vetiveria zizanioides and Zea mays using chelating agents [An article from: Chemosphere] [K.K.

Chiu, Z.H. Ye, M.H. Wong] on *FREE* shipping on qualifying offers. This digital document is a journal article from Chemosphere, published by Elsevier in. The article is delivered in HTML format and is available in your Author: K.K. Chiu, Z.H. Ye, M.H. Wong. Five chelating agents tested in this study included HEDTA, GLDA, di-sodium EDTA, di-ammonium EDTA, and sodium gluconate.

Compatibility tests of the fluid system at. GoldBio offers two popular chelating agents: EDTA, which is very stable, and EGTA, which is used in live cell studies and has high affinity for calcium.

Abstract. The Aluminium-induced exudation of citrate of two maize cultivars differing in Al resistance was positively related to Al-resistance and confined to the apical 3–4 mm as determined by means of whole plant experiments and incubation of excised 1-mm root by: 5.

Chelation therapy is the preferred medical treatment for reducing the toxic effects of metals. Chelating agents are capable of binding to toxic metal ions to form complex structures which are easily excreted from the body removing them from intracellular or extracellular spaces. 2,3-Dimercaprol has long been the mainstay of chelation therapy for lead or arsenic poisoning.

15 Santos AL, Sodre CL, Valle RS et al. Antimicrobial action of chelating agents: repercussions on the microorganism development, virulence and pathogenesis. Curr. by: 1. Science 09 Jul Vol.Issuepp. DOI: /scienceCited by: Dorota Kołodyńska (September 22nd ).

Chelating Agents of a New Generation as an Alternative to Conventional Chelators for Heavy Metal Ions Removal from Different Waste Waters, Expanding Issues in Desalination, Robert Y.

Ning, IntechOpen, DOI: Cited by: Chelating agents are used in various applications such as chemical analysis, water treatment process, detergents, oil production, medicines, dairy & beverage industry, power plants, and others. The chelating agent market is a fastest growing market driven by the increased demand from the end users majorly from the cleaning & detergent industry.

The Fenton reaction was performed by mixing mL of solution A, μL of B, and μL of C, which was allowed to stand at room temperature for 10 min. DMPO-OH formation almost ceased after 6 min (96%), and was considered to have completed after 10 min ().Then, μL of a solution of chelating agent, solution D (concentration is IC 50, shown in Table 1) was added, Cited by: EHR Integration.

Health Industry Podcasts. The use of chelating agents in the separation of the rare earth elements by ion-exchange methods Abstract The research described in this thesis was undertaken in order to accomplish two main objectives. The first was to measure the stability of the complexes formed by each of the trivalent rare earth cations with.

Industry Insights. The global chelating agents market demand was 1, kilo tons in The market is likely to observe growth over the forecast period owing to increasing demand for chelating agents in pulp and paper, agrochemicals, and detergent growth of these end-use industries is expected to propel demand over the forecast period.

Abstract. Chelates with stability constants for zinc ranging from to were tested for growth-promoting activity with turkey poults in a zinc-deficientCited by: Home > Resources > Technical References Conjugation and Labeling Procedures for Isothiocyanato Derivatives The preparation of DTPA coupled antibodies radiolabeled with metallic radionuclides: an improved method.

Title:Chelating Agents for Neurodegenerative Diseases VOLUME: 19 ISSUE: 17 Author(s):R. Ward, D. Dexter and R. Crichton Affiliation:Universite Catholique de Louvain, Louvain-la-Neuve, Belgium. Keywords:chelation, neurodegeneration, iron, copper, zinc Abstract:It has become apparent in the last years that metal ion homeostasis and its dysfunction which results.

Global chelating agent market will reach USD billion bygrowing at a CAGR of around % during and   CHELATING AGENTS - authorSTREAM Presentation. Slide Supportive measures EDTA - mg/kg/day deep IM in two doses for 5 consecutive days Dimercaprol – 4mg/kg IM every 4 hrly for 48 hrs then 6 hrly for 48 hrs and 12hrly for 7 days The combination of EDTA and BAL is more affective than individual agents Succimer - 10mg/kg oral 8 hrly for 5.

ASU - Chapter 24 Learn with flashcards, games, and more — for free. Chelating agents to treat the iron chlorosis – Definition and mechanism of action admin Octo No comments One of the most important cause of iron chlorosis is the soil ph, in fact the plant adsorbs the Fe 3+ present in the soil by the roots where a reduction from Fe 3+ to Fe 2+ occur, thanks to the enzymatic reaction.

There are also many biological enzymes which are chelation agents too. In addition to their importance in living organisms, chelates are also reasonably important, both as products in themselves and as agents in the production of their chemicals.

A chelate is a chemical mixture of a metal ion and a chelating agent. A chelating agent is a. Title:Chemistry and bifunctional chelating agents for binding Lu VOLUME: 8 ISSUE: 2 Author(s):Józef L.

Parus, Dariusz Pawlak, Renata Mikolajczak and Adriano Duatti Affiliation:Laboratory of Nuclear Medicine, University of Ferrara, Ferrara, Italy. Keywords:Bifunctional chelators, chemistry of lutetium, DOTA, DTPA, lanthanides, Lutetium. The chief objection to the use of xylene as a clearing agent for processing tissues is that xylene is: a) likely to harden tissues b) hydroscopic clearing agents.

b) universal solvents. A chelating agent exchanges another ion for the calcium ion. Global Chelating Agents Market: Snapshot. The global market for chelating agents is highly dynamic and versatile in nature.

Chelating agents find significant application in the paper and pulp, water treatment, agrochemicals, cleaners, chemical processing, personal care products, food and beverage, metalworking, textiles, oilfields, and the pharmaceuticals sectors/5(10).

The degradation of DNA by bleomycin was studied in the absence and in the presence of added reducing agents, including 2-mercaptoethanol, dithiothreitol, reduced nicotinamide adenine dinucleotide phosphate, H2O2, and ascorbate, and in the presence of a superoxide anion generating system consisting of xanthine oxidase and by: Chelating agents are the drugs or agents used to prevent or reverse the toxic effects of heavy metals on enzymes or accelerate elimination of metals from body.

The term “chelate is derived from the Greek word “ Chele” meaning “Crab’s Claw”. Introduction. Breast cancer is a common malignancy and is one of the leading causes of cancer deaths among accumulating body of evidence suggests a role for iron (Fe) in the etiology of breast cancer (reviewed in).Indeed, rapidly growing and dividing cancer cells have a higher requirement for Fe (reviewed in,) and breast cancer cells possess multiple Cited by:   Chelating agents produced by microorganisms enhance the dissolution of iron and increase its mobility and bioavailability.

Since there are some similarities in the biological behavior of ferric, thorium and uranuyl ions, microorganisms resistant to thorium and uranium and capable of growing in their presence may produce sequestering agents for these metals in a manner Cited by: Chelating agents are used in the treatment of poisoning with heavy metals.

They incorporate the metal ion into an inner ring structure in the molecule by means of chemical groups called ligands (Greek word chele = claw, Latin word ligare = to bind).

Li L, Abe Y, Kanagawa K, Shoji T, Mashino T, Mochizuki M et al. Iron-chelating agents never suppress Fenton reaction but participate in quenching spin-trapped radicals. Analytica Chimica Acta. Sep 19;(2)Cited by:   Based on the molecular design of HML, we synthesized and evaluated a new chelating agent for reducing renal radioactivity levels of Tcm (Tc) labeled antibody fragments.

Methods 2-Picolylamine-N-acetic acid (PG) was selected as a chelating molecule for Tc(CO)3, and was converted to isonicotinic acid derivative (PG-COOH).Author: Chie Suzuki, Chie Suzuki, Naoki Kanazawa, Shota Wada, Hiroyuki Suzuki, Tomoya Uehara, Yasushi Arano.

iron chelating and glucosidase inhibitory activities. Excess iron in the body is associated with iron-mediated oxidative stress, which increases the risks of neurodegenerative diseases, diabetes, cancer, and stroke [4].

Hence, iron chelators are used as therapeutic agents in the management of iron-related diseases [4]. For iron chelating activity, the EC 50 of 3AH decreased by 35 % compared with 0AH (Table 1). In contrast, 3TH had a higher EC 50 value relative to 0TH, whereas 0PH and 3PH had similar EC 50 values.

For iron chelating activity, the EC 50 of 3AH was fold higher than that of EDTA disodium. For copper chelating activity, 3. Bifunctional macrocyclic chelating agents with larger than the membered ring DOTA, membered, membered, and membered ring agents have also been developed (Figure 5).

At least two different geometrically substituted membered ring bifunctional TETA agents have been reported. 26, 39 TETA had been promoted as being stable for copper.Improved bifunctional chelating agents (BFC) are required for copper radiolabelling of monoclonal antibodies (mAbs) under mild conditions to yield stable, target-specific imaging agents.

Four different bifunctional chelating agents (BFC) were evaluated for Fab (Fragment antigen binding) conjugation and ra Frontiers in Radionuclide Imaging and TherapyCited by: 4.inorganic agents (with variable charge states, geometries, and coordination numbers, all of which can be altered by speciation) adds to the challenge and can result in polypharmacology,15 As a result, elucidation of the biological effects of potential medicinal inorganic agents has lagged far behind chemical innovation.