Abstract：
:Providing clean and affordable drinking water without harmful disinfection byproducts generated by conventional chemical disinfectants gives rise to the need for technological innovation. Nanotechnology has great potential in purifying water and wastewater treatment. A graphene oxide-silver (GO-Ag) nanocomposite with excellent antibacterial activity was prepared and characterized by transmission electron microscope and X-ray photoelectron spectroscopy. The tests were carried out using Escherichia coli and Staphylococcus aureus as model strains of Gram-negative and Gram-positive bacteria, respectively. The effect of bactericide dosage and pH on antibacterial activity of GO-Ag was examined. Morphological observation of bacterial cells by scanning electron microscope showed that GO-Ag was much more destructive to cell membrane of Escherichia coli than that of Staphylococcus aureus. Experiments were carried out using catalase, superoxide dismutase and sodium thioglycollate to investigate the formation of reactive oxygen species and free silver ions in the bactericidal process. The activity of intracellular antioxidant enzymes was measured to investigate the potential role of oxidative stress. According to the consequence, synergetic mechanism including destruction of cell membranes and oxidative stress accounted for the antibacterial activity of GO-Ag nanocomposites. All the results suggested that GO-Ag nanocomposites displayed a good potential for application in water disinfection.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Song B,Zhang C,Zeng G,Gong J,Chang Y,Jiang Ydoi
10.1016/j.abb.2016.04.018subject
Has Abstractpub_date
2016-08-15 00:00:00pages
167-76eissn
0003-9861issn
1096-0384pii
S0003-9861(16)30152-7journal_volume
604pub_type
杂志文章abstract：:A series of murine monoclonal antibodies, each reactive with terminal GlcNAc residues expressed on glycolipids, have been isolated after immunization with the glycolipid nLc5 (GlcNAc beta 1----3Gal beta 1----4GlcNAc beta 1----3Gal beta 1---- 4Glc beta 1----1Cer). The derived antibodies, designated TE-4, TE-5, TE-6, an...
journal_title：Archives of biochemistry and biophysics
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1122
更新日期：1995-02-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1998.0597
更新日期：1998-04-15 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1997.9986
更新日期：1997-06-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2007.10.012
更新日期：2008-01-15 00:00:00
abstract：:Vanadate-dependent NAD(P)H oxidation, catalyzed by rat liver microsomes and microsomal NADPH-cytochrome P450 reductase (P450 reductase) and NADH-cytochrome b5 reductase (b5 reductase), was investigated. These enzymes and intact microsomes catalyzed NAD(P)H oxidation in the presence of either ortho- or polyvanadate. An...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(89)90015-5
更新日期：1989-04-01 00:00:00
abstract：:Phosphoenolpyruvate carboxylase from maize leaves was inactivated by pyridoxal 5'-phosphate in the dark and in the light. A two-step reversible mechanism is proposed for inactivation in the dark, which involves the formation of a noncovalent complex prior to a Schiff base with amino groups of the enzyme. Spectral anal...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90309-7
更新日期：1986-05-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2005.05.026
更新日期：2005-08-01 00:00:00
abstract：:Diastolic dysfunction is a clinically significant problem for patients with diabetes and often reflects increased ventricular stiffness. Attached cross-bridges contribute to myocardial stiffness and produce short-range forces, but it is not yet known whether these forces are altered in diabetes. In this study, we test...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2013.08.013
更新日期：2014-06-15 00:00:00
abstract：:The conditions for accurately determining distance constraints from TrNOESY data on a small ligand (3'CMP) bound to a small protein (RNase A, <14 kDa) are described. For small proteins, normal TrNOESY conditions of 10:1 ligand:protein or greater can lead to inaccurate structures for the ligand-bound conformation due t...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2007.02.034
更新日期：2007-07-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2019.05.008
更新日期：2019-06-15 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1999.1403
更新日期：1999-11-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(89)90344-5
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pub_type： 杂志文章
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更新日期：2021-01-22 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90493-5
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(92)90052-x
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pub_type： 杂志文章
doi：10.1006/abbi.1993.1410
更新日期：1993-08-15 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/s0003-9861(02)00523-4
更新日期：2002-12-01 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1132
更新日期：1995-02-20 00:00:00
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journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2005.12.015
更新日期：2006-03-01 00:00:00
abstract：:Imidazolium trans-imidazoledimethylsulfoxide-tetrachlororuthenate (NAMI-A) is a new ruthenium compound active against lung metastasis in vivo and tumor cell invasion in vitro. Since angiogenesis was recognized as a key event in the metastasizing process, the manipulation of neo-vessel formation has been developed as a...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/s0003-9861(02)00218-7
更新日期：2002-07-15 00:00:00
abstract：:Plumbagin (PLB), a natural naphthoquinone from the traditional folk medicines Plumbago zeylanica, Dionaea muscipula, or Nepenthes gracilis, has been documented possessing a wide variety of pharmacological activities. Although PLB demonstrates anticancer activity in multiple types of malignant cells, the cellular targe...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2017.02.007
更新日期：2017-04-01 00:00:00
abstract：:The association of myelin basic protein charge isomers with the lipid part of the myelin membrane was investigated at the microscopic (molecular) level in a model membrane system, using optical waveguide lightmode spectrometry to determine with high precision the kinetics of association and dissociation to planar phos...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2003.09.020
更新日期：2003-11-15 00:00:00
abstract：:The common notion in the protein world holds that proteins are synthesized as a linear polypeptide chain, followed by folding into a unique, functional 3D-structure. As outlined in many articles of this volume, this is in fact the case for a great proportion of the proteome. Many proteins and protein domains, however,...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1016/j.abb.2012.09.010
更新日期：2013-03-01 00:00:00
