ArticleScientific reports2019
AFM nanoindentation reveals decrease of elastic modulus of lipid bilayers near freezing point of water.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 14 citations in OpenAlex.
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- Cardiolipin-mimic lipid nanoparticles without antibody modification delivered senolytic in vivo CAR-T therapy for inflamm-aging.Cell reports. Medicine · 2025Article
- Synthetic cell preservation strategies enable their storage and activation at the point of use.Chemical communications (Cambridge, England) · 2025Article
- A Minimalist Model Lipid System Mimicking the Biophysical Properties ofLangmuir : the ACS journal of surfaces and colloids · 2025Article
- Effects of Lipid Headgroups on the Mechanical Properties and In Vitro Cellular Internalization of Liposomes.Langmuir : the ACS journal of surfaces and colloids · 2025Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Cell lipid membranes are the primary site of irreversible injury during freezing/thawing and cryopreservation of cells, but the underlying causes remain unknown. Here, we probe the effect of cooling from 20 °C to 0 °C on the structure and mechanical properties of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) bilayers using atomic force microscopy (AFM) imaging and AFM-based nanoindentation in a liquid environment. The Young's modulus of elasticity (E) at each temperature for DPPC was obtained at different ionic strengths. Both at 20 mM and 150 mM NaCl, E of DPPC bilayers increases exponentially -as expected-as the temperature is lowered between 20 °C and 5 °C, but at 0 °C E drops from the values measured at 5 °C. Our results support the hypothesis that mechanical weakening of the bilayer at 0 °C is produced by structural changes at the lipid-fluid interface.
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Registered trials
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