View in EDS PDF Full Text

Bacillus spores as building blocks for stimuli-responsive materials and nanogenerators.

Saved in:
Bibliographic Details
Title: Bacillus spores as building blocks for stimuli-responsive materials and nanogenerators.
Authors: Chen, Xi1, Mahadevan, L.2, Driks, Adam3, Sahin, Ozgur4
Source: Nature Nanotechnology. Feb2014, Vol. 9 Issue 2, p137-141. 5p.
Subjects: Unit construction, Aversive stimuli, Mechanical behavior of materials, Nanostructured materials, Biomedical engineering, Energy harvesting
Abstract: Materials that respond mechanically to external chemical stimuli have applications in biomedical devices, adaptive architectural systems, robotics and energy harvesting. Inspired by biological systems, stimuli-responsive materials have been created that can oscillate, transport fluid, provide homeostasis and undergo complex changes in shape. However, the effectiveness of synthetic stimuli-responsive materials in generating work is limited when compared with mechanical actuators. Here, we show that the mechanical response of Bacillus spores to water gradients exhibits an energy density of more than 10 MJ m?3, which is two orders of magnitude higher than synthetic water-responsive materials. We also identified mutations that can approximately double the energy density of the spores and found that they can self-assemble into dense, submicrometre-thick monolayers on substrates such as silicon microcantilevers and elastomer sheets, creating bio-hybrid hygromorph actuators. To illustrate the potential applications of the spores, we used them to build an energy-harvesting device that can remotely generate electrical power from an evaporating body of water. [ABSTRACT FROM AUTHOR]
Copyright of Nature Nanotechnology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 94277382
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Bacillus spores as building blocks for stimuli-responsive materials and nanogenerators.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Xi%22">Chen, Xi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mahadevan%2C+L%2E%22">Mahadevan, L.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Driks%2C+Adam%22">Driks, Adam</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Sahin%2C+Ozgur%22">Sahin, Ozgur</searchLink><relatesTo>4</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Nature+Nanotechnology%22">Nature Nanotechnology</searchLink>. Feb2014, Vol. 9 Issue 2, p137-141. 5p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Unit+construction%22">Unit construction</searchLink><br /><searchLink fieldCode="DE" term="%22Aversive+stimuli%22">Aversive stimuli</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biomedical+engineering%22">Biomedical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+harvesting%22">Energy harvesting</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Materials that respond mechanically to external chemical stimuli have applications in biomedical devices, adaptive architectural systems, robotics and energy harvesting. Inspired by biological systems, stimuli-responsive materials have been created that can oscillate, transport fluid, provide homeostasis and undergo complex changes in shape. However, the effectiveness of synthetic stimuli-responsive materials in generating work is limited when compared with mechanical actuators. Here, we show that the mechanical response of Bacillus spores to water gradients exhibits an energy density of more than 10 MJ m?3, which is two orders of magnitude higher than synthetic water-responsive materials. We also identified mutations that can approximately double the energy density of the spores and found that they can self-assemble into dense, submicrometre-thick monolayers on substrates such as silicon microcantilevers and elastomer sheets, creating bio-hybrid hygromorph actuators. To illustrate the potential applications of the spores, we used them to build an energy-harvesting device that can remotely generate electrical power from an evaporating body of water. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nature Nanotechnology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=94277382
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1038/nnano.2013.290
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 137
    Subjects:
      – SubjectFull: Unit construction
        Type: general
      – SubjectFull: Aversive stimuli
        Type: general
      – SubjectFull: Mechanical behavior of materials
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: Biomedical engineering
        Type: general
      – SubjectFull: Energy harvesting
        Type: general
    Titles:
      – TitleFull: Bacillus spores as building blocks for stimuli-responsive materials and nanogenerators.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Chen, Xi
      – PersonEntity:
          Name:
            NameFull: Mahadevan, L.
      – PersonEntity:
          Name:
            NameFull: Driks, Adam
      – PersonEntity:
          Name:
            NameFull: Sahin, Ozgur
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 02
              Text: Feb2014
              Type: published
              Y: 2014
          Identifiers:
            – Type: issn-print
              Value: 17483387
          Numbering:
            – Type: volume
              Value: 9
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Nature Nanotechnology
              Type: main
ResultId 1