Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.
Identifieur interne : 000686 ( Main/Corpus ); précédent : 000685; suivant : 000687Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.
Auteurs : Lian Wang ; Hong He ; Changbin Zhang ; Li Sun ; Sijin Liu ; Shaoxin WangSource :
- Journal of environmental sciences (China) [ 1001-0742 ] ; 2016.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Reactive Oxygen Species.
- chemical , pharmacology : Anti-Bacterial Agents, Manganese Compounds, Oxides, Silver.
- analysis : Metal Nanoparticles.
- drug effects : Escherichia coli.
Abstract
Silver-loaded MnO2 nanomaterials (Ag/MnO2), including Ag/α-MnO2, Ag/β-MnO2, Ag/γ-MnO2 and Ag/δ-MnO2 nanorods, were prepared with hydrothermal and impregnation methods. The bactericidal activities of four types of Ag/MnO2 nanomaterials against Escherichia coli were investigated and an inactivation mechanism involving Ag(+) and reactive oxygen species (ROS) was also proposed. The bactericidal activities of Ag/MnO2 depended on the MnO2 crystal phase. Among these nanomaterials, Ag/β-MnO2 showed the highest bactericidal activity. There was a 6-log decrease in E. coli survival number after treatment with Ag/β-MnO2 for 120min. The results of 5,5-dimethyl-1-pyrroline-N-oxide spin-trapping measurements by electron spin resonance indicate OH and O2‾ formation with addition of Ag/β-MnO2, Ag/γ-MnO2 or Ag/δ-MnO2. The strongest peak of OH appeared for Ag/β-MnO2, while no OH or O2‾ signal was found over Ag/α-MnO2. Through analysis of electron spin resonance (ESR) and Ag(+) elution results, it could be deduced that the toxicity of Ag(+) eluted from Ag/MnO2 nanomaterials and ROS played the main roles during the bactericidal process. Silver showed the highest dispersion on the surface of β-MnO2, which promoted ROS formation and the increase of bactericidal activity. Experimental results also indicated that Ag/MnO2 induced the production of intracellular ROS and disruption of the cell wall and cell membrane.
DOI: 10.1016/j.jes.2015.04.026
PubMed: 26969056
Links to Exploration step
pubmed:26969056Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.</title><author><name sortKey="Wang, Lian" sort="Wang, Lian" uniqKey="Wang L" first="Lian" last="Wang">Lian Wang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="He, Hong" sort="He, Hong" uniqKey="He H" first="Hong" last="He">Hong He</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: honghe@rcees.ac.cn.</nlm:affiliation></affiliation></author><author><name sortKey="Zhang, Changbin" sort="Zhang, Changbin" uniqKey="Zhang C" first="Changbin" last="Zhang">Changbin Zhang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Sun, Li" sort="Sun, Li" uniqKey="Sun L" first="Li" last="Sun">Li Sun</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Liu, Sijin" sort="Liu, Sijin" uniqKey="Liu S" first="Sijin" last="Liu">Sijin Liu</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Shaoxin" sort="Wang, Shaoxin" uniqKey="Wang S" first="Shaoxin" last="Wang">Shaoxin Wang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2016">2016</date><idno type="RBID">pubmed:26969056</idno><idno type="pmid">26969056</idno><idno type="doi">10.1016/j.jes.2015.04.026</idno><idno type="wicri:Area/Main/Corpus">000686</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000686</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.</title><author><name sortKey="Wang, Lian" sort="Wang, Lian" uniqKey="Wang L" first="Lian" last="Wang">Lian Wang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="He, Hong" sort="He, Hong" uniqKey="He H" first="Hong" last="He">Hong He</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: honghe@rcees.ac.cn.</nlm:affiliation></affiliation></author><author><name sortKey="Zhang, Changbin" sort="Zhang, Changbin" uniqKey="Zhang C" first="Changbin" last="Zhang">Changbin Zhang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Sun, Li" sort="Sun, Li" uniqKey="Sun L" first="Li" last="Sun">Li Sun</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Liu, Sijin" sort="Liu, Sijin" uniqKey="Liu S" first="Sijin" last="Liu">Sijin Liu</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Shaoxin" sort="Wang, Shaoxin" uniqKey="Wang S" first="Shaoxin" last="Wang">Shaoxin Wang</name><affiliation><nlm:affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Journal of environmental sciences (China)</title><idno type="ISSN">1001-0742</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anti-Bacterial Agents (pharmacology)</term><term>Escherichia coli (drug effects)</term><term>Manganese Compounds (pharmacology)</term><term>Metal Nanoparticles (analysis)</term><term>Oxides (pharmacology)</term><term>Reactive Oxygen Species (metabolism)</term><term>Silver (pharmacology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Reactive Oxygen Species</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Anti-Bacterial Agents</term><term>Manganese Compounds</term><term>Oxides</term><term>Silver</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Metal Nanoparticles</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Escherichia coli</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Silver-loaded MnO2 nanomaterials (Ag/MnO2), including Ag/α-MnO2, Ag/β-MnO2, Ag/γ-MnO2 and Ag/δ-MnO2 nanorods, were prepared with hydrothermal and impregnation methods. The bactericidal activities of four types of Ag/MnO2 nanomaterials against Escherichia coli were investigated and an inactivation mechanism involving Ag(+) and reactive oxygen species (ROS) was also proposed. The bactericidal activities of Ag/MnO2 depended on the MnO2 crystal phase. Among these nanomaterials, Ag/β-MnO2 showed the highest bactericidal activity. There was a 6-log decrease in E. coli survival number after treatment with Ag/β-MnO2 for 120min. The results of 5,5-dimethyl-1-pyrroline-N-oxide spin-trapping measurements by electron spin resonance indicate OH and O2‾ formation with addition of Ag/β-MnO2, Ag/γ-MnO2 or Ag/δ-MnO2. The strongest peak of OH appeared for Ag/β-MnO2, while no OH or O2‾ signal was found over Ag/α-MnO2. Through analysis of electron spin resonance (ESR) and Ag(+) elution results, it could be deduced that the toxicity of Ag(+) eluted from Ag/MnO2 nanomaterials and ROS played the main roles during the bactericidal process. Silver showed the highest dispersion on the surface of β-MnO2, which promoted ROS formation and the increase of bactericidal activity. Experimental results also indicated that Ag/MnO2 induced the production of intracellular ROS and disruption of the cell wall and cell membrane. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26969056</PMID><DateCompleted><Year>2016</Year><Month>12</Month><Day>13</Day></DateCompleted><DateRevised><Year>2018</Year><Month>04</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">1001-0742</ISSN><JournalIssue CitedMedium="Internet"><Volume>41</Volume><PubDate><Year>2016</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Journal of environmental sciences (China)</Title><ISOAbbreviation>J Environ Sci (China)</ISOAbbreviation></Journal><ArticleTitle>Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.</ArticleTitle><Pagination><MedlinePgn>112-120</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S1001-0742(15)00316-2</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jes.2015.04.026</ELocationID><Abstract><AbstractText>Silver-loaded MnO2 nanomaterials (Ag/MnO2), including Ag/α-MnO2, Ag/β-MnO2, Ag/γ-MnO2 and Ag/δ-MnO2 nanorods, were prepared with hydrothermal and impregnation methods. The bactericidal activities of four types of Ag/MnO2 nanomaterials against Escherichia coli were investigated and an inactivation mechanism involving Ag(+) and reactive oxygen species (ROS) was also proposed. The bactericidal activities of Ag/MnO2 depended on the MnO2 crystal phase. Among these nanomaterials, Ag/β-MnO2 showed the highest bactericidal activity. There was a 6-log decrease in E. coli survival number after treatment with Ag/β-MnO2 for 120min. The results of 5,5-dimethyl-1-pyrroline-N-oxide spin-trapping measurements by electron spin resonance indicate OH and O2‾ formation with addition of Ag/β-MnO2, Ag/γ-MnO2 or Ag/δ-MnO2. The strongest peak of OH appeared for Ag/β-MnO2, while no OH or O2‾ signal was found over Ag/α-MnO2. Through analysis of electron spin resonance (ESR) and Ag(+) elution results, it could be deduced that the toxicity of Ag(+) eluted from Ag/MnO2 nanomaterials and ROS played the main roles during the bactericidal process. Silver showed the highest dispersion on the surface of β-MnO2, which promoted ROS formation and the increase of bactericidal activity. Experimental results also indicated that Ag/MnO2 induced the production of intracellular ROS and disruption of the cell wall and cell membrane. </AbstractText><CopyrightInformation>Copyright © 2015. Published by Elsevier B.V.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Lian</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>He</LastName><ForeName>Hong</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: honghe@rcees.ac.cn.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Changbin</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sun</LastName><ForeName>Li</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Sijin</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Shaoxin</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>08</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>J Environ Sci (China)</MedlineTA><NlmUniqueID>100967627</NlmUniqueID><ISSNLinking>1001-0742</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000900">Anti-Bacterial Agents</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017895">Manganese Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010087">Oxides</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017382">Reactive Oxygen Species</NameOfSubstance></Chemical><Chemical><RegistryNumber>3M4G523W1G</RegistryNumber><NameOfSubstance UI="D012834">Silver</NameOfSubstance></Chemical><Chemical><RegistryNumber>TF219GU161</RegistryNumber><NameOfSubstance UI="C016552">manganese dioxide</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000900" MajorTopicYN="N">Anti-Bacterial Agents</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004926" MajorTopicYN="N">Escherichia coli</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017895" MajorTopicYN="N">Manganese Compounds</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D053768" MajorTopicYN="N">Metal Nanoparticles</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010087" MajorTopicYN="N">Oxides</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017382" MajorTopicYN="N">Reactive Oxygen Species</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012834" MajorTopicYN="N">Silver</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Bactericidal activity</Keyword><Keyword MajorTopicYN="N">Escherichia coli</Keyword><Keyword MajorTopicYN="N">MnO(2)</Keyword><Keyword MajorTopicYN="N">ROS</Keyword><Keyword MajorTopicYN="N">Silver</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2015</Year><Month>02</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2015</Year><Month>04</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2015</Year><Month>04</Month><Day>17</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>3</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>3</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2016</Year><Month>12</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">26969056</ArticleId><ArticleId IdType="pii">S1001-0742(15)00316-2</ArticleId><ArticleId IdType="doi">10.1016/j.jes.2015.04.026</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Terre/explor/SilverBacteriV1/Data/Main/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000686 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd -nk 000686 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Terre
|area= SilverBacteriV1
|flux= Main
|étape= Corpus
|type= RBID
|clé= pubmed:26969056
|texte= Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Corpus/RBID.i -Sk "pubmed:26969056" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd \
| NlmPubMed2Wicri -a SilverBacteriV1
| This area was generated with Dilib version V0.6.38. |  |