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Title: Crumpling of silver nanowires by endolysosomes strongly reduces toxicity

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

Fibrous particles interact with cells and organisms in complex ways that can lead to cellular dysfunction, cell death, inflammation, and disease. The development of conductive transparent networks (CTNs) composed of metallic silver nanowires (AgNWs) for flexible touchscreen displays raises new possibilities for the intimate contact between novel fibers and human skin. Here, we report that a material property, nanowire-bending stiffness that is a function of diameter, controls the cytotoxicity of AgNWs to nonimmune cells from humans, mice, and fish without deterioration of critical CTN performance parameters: electrical conductivity and optical transparency. Both 30- and 90-nm-diameter AgNWs are readily internalized by cells, but thinner NWs are mechanically crumpled by the forces imposed during or after endocytosis, while thicker nanowires puncture the enclosing membrane and release silver ions and lysosomal contents to the cytoplasm, thereby initiating oxidative stress. This finding extends the fiber pathology paradigm and will enable the manufacture of safer products incorporating AgNWs.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1564566
Alternate ID(s):
OSTI ID: 1559232
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 116 Journal Issue: 30; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (45)

Flexible transparent conductive materials based on silver nanowire networks: a review journal October 2013
The effect of nanowire length and diameter on the properties of transparent, conducting nanowire films journal January 2012
Co-Percolating Graphene-Wrapped Silver Nanowire Network for High Performance, Highly Stable, Transparent Conducting Electrodes journal April 2013
The effect of silver nanoparticles and silver ions on mammalian and plant cells in vitro journal October 2016
NADPH Oxidase-Dependent NLRP3 Inflammasome Activation and its Important Role in Lung Fibrosis by Multiwalled Carbon Nanotubes journal January 2015
Shape matters: effects of silver nanospheres and wires on human alveolar epithelial cells journal January 2011
Use of silver nanowires to determine thresholds for fibre length-dependent pulmonary inflammation and inhibition of macrophage migration in vitro journal January 2012
Diameter and rigidity of multiwalled carbon nanotubes are critical factors in mesothelial injury and carcinogenesis journal November 2011
Mechanics of Microtubule-Based Membrane Extension journal December 1997
Silver Nanowire Exposure Results in Internalization and Toxicity to Daphnia magna journal November 2013
Mechanisms of Nanoparticle-Induced Oxidative Stress and Toxicity journal January 2013
Silver Wire Amplifies the Signaling Mechanism for IL-1beta Production More Than Silver Submicroparticles in Human Monocytic THP-1 Cells journal November 2014
Crystalline Silver Nanowires by Soft Solution Processing journal February 2002
Toxic Potential of Materials at the Nanolevel journal February 2006
Antioxidant and Cell-Signaling Functions of Hydrogen Sulfide in the Central Nervous System journal January 2018
In Vitro Dermal Safety Assessment of Silver Nanowires after Acute Exposure: Tissue vs. Cell Models journal April 2018
High performance transparent multi-touch sensors based on silver nanowires journal June 2016
The dependence of the optoelectrical properties of silver nanowire networks on nanowire length and diameter journal April 2012
Metallic Nanowire-Based Transparent Electrodes for Next Generation Flexible Devices: a Review journal October 2016
Strategies for the intracellular delivery of nanoparticles journal January 2011
Silver Nanowire Particle Reactivity with Human Monocyte-Derived Macrophage Cells: Intracellular Availability of Silver Governs Their Cytotoxicity journal September 2017
GM1 structure determines SV40-induced membrane invagination and infection journal December 2009
Asbestos, carbon nanotubes and the pleural mesothelium: a review and the hypothesis regarding the role of long fibre retention in the parietal pleura, inflammation and mesothelioma journal January 2010
Engineered nanomaterial-induced lysosomal membrane permeabilization and anti-cathepsin agents journal May 2017
Environmental Transformations of Silver Nanoparticles: Impact on Stability and Toxicity journal February 2012
Autophagy induction by silver nanowires: A new aspect in the biocompatibility assessment of nanocomposite thin films journal November 2012
Early Combination of Material Characteristics and Toxicology Is Useful in the Design of Low Toxicity Carbon Nanofiber journal September 2012
SimpleElastix: A User-Friendly, Multi-lingual Library for Medical Image Registration conference June 2016
Particle length-dependent titanium dioxide nanomaterials toxicity and bioactivity journal January 2009
Cell entry of one-dimensional nanomaterials occurs by tip recognition and rotation journal September 2011
Nanomechanical mechanism for lipid bilayer damage induced by carbon nanotubes confined in intracellular vesicles journal October 2016
Surface Interactions with Compartmentalized Cellular Phosphates Explain Rare Earth Oxide Nanoparticle Hazard and Provide Opportunities for Safer Design journal January 2014
Efficient correction of wavefront inhomogeneities in X-ray holographic nanotomography by random sample displacement journal May 2018
Use of back-scatter electron signals to visualise cell/nanowires interactions in vitro and in vivo; frustrated phagocytosis of long fibres in macrophages and compartmentalisation in mesothelial cells in vivo journal January 2012
Kinks, rings, and rackets in filamentous structures journal October 2003
Short versus long silver nanowires: a comparison of in vivo pulmonary effects post instillation journal October 2014
A multiplatform code for the analysis of energy-dispersive X-ray fluorescence spectra journal January 2007
Silver nanowires as prospective carriers for drug delivery in cancer treatment: an in vitro biocompatibility study on lung adenocarcinoma cells and fibroblasts journal January 2013
Efficient concentration of high-energy x-rays for diffraction-limited imaging resolution journal January 2017
Holotomography: Quantitative phase tomography with micrometer resolution using hard synchrotron radiation x rays journal November 1999
The asbestos analogy revisited journal July 2008
Sulfidation of silver nanowires inside human alveolar epithelial cells: a potential detoxification mechanism journal January 2013
Designed Synthesis of CeO 2 Nanorods and Nanowires for Studying Toxicological Effects of High Aspect Ratio Nanomaterials journal May 2012
An introduction to the short-term toxicology of respirable industrial fibres journal September 2004
Improvements in purification of silver nanowires by decantation and fabrication of flexible transparent electrodes. Application to capacitive touch sensors journal April 2013

Figures / Tables (4)