Evidence map›Paper›PMID 24463362›Full record

ArticleNature nanotechnology2014

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

Xi Chen, L Mahadevan, Adam Driks, Ozgur Sahin

Abstract read
PubMed Publisher
In one paragraph

Article in Nature nanotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed.

  1. Review
  2. Article
  3. Discrete Actuation of Water-Responsive Crystalline Metal-Peptide Frameworks.Angewandte Chemie (International ed. in English) · 2025
    Article
  4. Article
  5. A responsive living material prepared by diffusion reveals extracellular enzyme activity of cyanobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Research Progress on Moisture-Sorption Actuators Materials.Nanomaterials (Basel, Switzerland) · 2024
    Review
  10. Article
  11. Article
  12. Hydration solids.Nature · 2023
    Article
  13. Article
  14. Article
  15. Engineered Living Hydrogels.Advanced materials (Deerfield Beach, Fla.) · 2022
    Review
  16. High Energy and Power Density Peptidoglycan Muscles through Super-Viscous Nanoconfined Water.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Article
  17. Article
  18. Digital printing of shape-morphing natural materials.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Advances in engineeredSynthetic and systems biotechnology · 2021
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Xi ChenDepartment of Biological Sciences and Department of Physics, Columbia University, New York, New York 10027, USA.
L Mahadevan1] School of Engineering and Applied Sciences, Department of Physics, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA [2] Kavli Institute for Nanobio Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA [3] Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, USA.
Adam DriksDepartment of Microbiology and Immunology, Loyola University Medical Center, 2160 S. First Avenue, Maywood, Illinois 60153, USA.
Ozgur Sahin1] Department of Biological Sciences and Department of Physics, Columbia University, New York, New York 10027, USA [2] Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, USA.ORCID 0000000327662816

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

BacillusNanotechnologySporesBioelectric Energy SourcesNanostructures

Identifiers

PMID24463362

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.