The mechanical response of 15 single wall carbon nanotube (SWCNT) ropes under tensile load was measured. For 8 of these ropes strain data were obtained and they broke at strain values of 5.3% or lower. The force-strain data are well fit by a model that assumes the load is carried by the SWCNTs on the perimeter of each rope. This model provides an average breaking strength of SWCNTs on the perimeter of each rope; the 15 values range from 13 to 52 GPa (mean 30 GPa). Based on the same model the 8 average Young's modulus values determined range from 320 to 1470 GPa (mean 1002 GPa).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.84.5552 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Postoperative adhesions are abrogated by a sustained-release anti-JUN therapeutic in preclinical models.
Sci Transl Med
March 2025
Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
Postoperative abdominal adhesions are the leading cause of bowel obstruction and a cause of chronic pain and infertility. Adhesion formation occurs after 50 to 90% of abdominal operations and has no proven preventative or treatment strategy. Abdominal adhesions derive primarily from the visceral peritoneum and are composed of polyclonally proliferating tissue-resident fibroblasts.
View Article and Find Full Text PDFOutcomes of quadratus lumborum blocks for pain control after open abdominal wall reconstruction: a single institution retrospective analysis.
Hernia
March 2025
University of Tennessee Graduate School of Medicine, Knoxville, TN,, 37920, USA.
Introduction: Abdominal wall reconstruction (AWR) is associated with significant post-operative pain for which there is no standardized treatment regimen. Quadratus lumborum (QL) blocks have not been studied in open ventral hernia repair. This study reviews our institution's experience with QL blocks in open AWR.
View Article and Find Full Text PDFSustainable 4D Printed Meta Biocomposite Materials for Programmable Structural Shape Changing.
Adv Mater
March 2025
Université de Bretagne Sud, IRDL UMR CNRS 6027, BIONICS group, Lorient, 56100, France.
Biological structures provide inspiration for developing advanced materials from sustainable resources, enabling passive structural morphing. Despite an increasing interest for parsimony-oriented innovation, sustainable shape-changing materials based on renewable resources remain underexplored. In this work, the architecture of a single plant fiber cell wall (S, for instance) is simplified to design novel concepts of 4D printed tubular moisture-driven structural actuators, using the hygromorphic properties of continuous flax fiber (cFF) reinforced materials.
View Article and Find Full Text PDFDeficiency in peptidoglycan recycling promotes β-lactam sensitivity in .
mBio
March 2025
Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, India.
Peptidoglycan (PG)-modifying enzymes play a crucial role in cell wall remodeling, essential for growth and division. Cell wall degradation products are transported to the cytoplasm and recycled back in most gram-negative bacteria, and PG recycling is also linked to β-lactam resistance in many bacteria. is intrinsically resistant to β-lactams.
View Article and Find Full Text PDFThe motion of catalytically active colloids approaching a surface.
Soft Matter
March 2025
Huygens-Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
Catalytic microswimmers typically swim close to walls due to hydrodynamic and/or phoretic effects. The walls in turn are known to affect their propulsion, making it difficult to single out the contributions that stem from particle-based catalytic propulsion only, thereby preventing an understanding of the propulsion mechanism. Here, we use acoustic tweezers to lift catalytically active Janus spheres away from the wall to study their motion in bulk and when approaching a wall.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!