Evaluation of Young’s Modulus of Tethered 1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine Membranes Using Atomic Force Spectroscopy

2014 ◽  
Vol 118 (50) ◽  
pp. 29301-29309 ◽  
Author(s):  
Xi Wang ◽  
Robert N. Sanderson ◽  
Regina Ragan
Keyword(s):  
Young’S Modulus ◽  
Young's Modulus ◽  
Force Spectroscopy ◽  
Atomic Force Spectroscopy ◽  
Atomic Force

scholarly journals OBTAINING LOCAL VALUES OF THE YOUNG'S MODULUS ON THE POLYMER SURFACE BY CONTACT ATOMIC FORCE SPECTROSCOPY

2020 ◽  
pp. 132-137
Author(s):  
Юлия Васильевна Кузнецова ◽  
Виолетта Андреевна Веролайнен ◽  
Светлана Сергеевна Капустина
Keyword(s):  
Young’S Modulus ◽  
Contact Force ◽  
Young's Modulus ◽  
Polymer Surface ◽  
Force Spectroscopy ◽  
Spectroscopy Method ◽  
Scanning Probe ◽  
Atomic Force Spectroscopy ◽  
Atomic Force ◽  
Probe Microscope

С помощью метода контактной силовой спектроскопии на установке сканирующего зондового микроскопа Solver P47 получены локальные значения модуля Юнга на поверхности полимеров. Local values of the young's modulus on the polymer surface are obtained using the contact force spectroscopy method on the Solver P47 scanning probe microscope.

Microscopic Methods for Characterization of Selected Surface Properties of Biodegradable, Nanofibrous Tissue Engineering Scaffolds

2017 ◽  
Vol 890 ◽  
pp. 213-216 ◽  
Author(s):  
Adrian Chlanda ◽  
Ewa Kijeńska ◽  
Wojciech Święszkowski
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Force Spectroscopy ◽  
Operating Mode ◽  
Tissue Engineering Scaffolds ◽  
Force Microscopy ◽  
Atomic Force

Biodegradable polymeric fibers with nanoand submicron diameters, produced by electrospinning can be used as scaffolds in tissue engineering. It is necessary to characterize their mechanical properties especially at the nanoscale. The Force Spectroscopy is suitable atomic force microscopy mode, which allows to probe mechanical properties of the material, such as: reduced Young's modulus, deformation, adhesion, and dissipation. If combined with standard operating mode: contact or semicontact, it will also provide advanced topographical analysis. In this paper we are presenting results of Force Spectroscopy characterization of two kinds of electrospun fibers: polycaprolactone and polycaprolactone with hydroxyapatite addition. The average calculated from Johnson-Kendall-Roberts theory Young's modulus was 4 ± 1 MPa for pure polymer mesh and 20 ± 3 MPa for composite mesh.

Elastic Modulus Measurements on Large Diameter Nanowires Using a Nano-Assembled Platform

2014 ◽  
Vol 5 (2) ◽  
Author(s):  
Naveen K. R. Palapati ◽  
Adrienne Muth ◽  
Yujie Zhu ◽  
Chunsheng Wang ◽  
Arunkumar Subramanian
Keyword(s):  
Young’S Modulus ◽  
Lithium Iron Phosphate ◽  
Young's Modulus ◽  
Large Diameter ◽  
Force Spectroscopy ◽  
Lithium Ion ◽  
Element Model ◽  
Iron Phosphate ◽  
Material System ◽  
Atomic Force

This paper presents atomic force spectroscopy (AFM) results from large diameter nanowires (NWs), which range in radius from 150 nm to 300 nm, within a nano-assembled platform. The nanomechanical platform is constructed by assembling single NWs across pairs of gold nano-electrodes using dielectrophoresis and contains a short, suspended segment of the NW (in air) between the assembly electrodes. Atomic force microscope (AFM) force spectroscopy measurements are obtained by indenting the NW within this suspended segment and result in deformation of the NW involving a combination of both, bending and nano-indentation modes. This paper demonstrates the measurement technique using lithium iron phosphate NWs as a model system and presents a finite element model to extract the Young's modulus from nanomechanical data. The estimated Young's modulus of this material, which is an electrode material system of interest for next-generation lithium-ion batteries, was found to be diameter dependent and was observed to range in values between 100 MPa and 575 MPa.

Dysfunction of endothelial cells exposed to nanomaterials assessed by atomic force spectroscopy

Micron ◽  
2021 ◽  
Vol 145 ◽  
pp. 103062
Author(s):  
Agnieszka Maria Kolodziejczyk ◽  
Paulina Sokolowska ◽  
Aleksandra Zimon ◽  
Magdalena Grala ◽  
Marcin Rosowski ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Force Spectroscopy ◽  
Atomic Force Spectroscopy ◽  
Atomic Force

Ultrasonically synthesized organic liquid-filled chitosan microcapsules: part 2: characterization using AFM (atomic force microscopy) and combined AFM–confocal laser scanning fluorescence microscopy

Soft Matter ◽  
2018 ◽  
Vol 14 (16) ◽  
pp. 3192-3201 ◽  
Author(s):  
Srinivas Mettu ◽  
Qianyu Ye ◽  
Meifang Zhou ◽  
Raymond Dagastine ◽  
Muthupandian Ashokkumar
Keyword(s):  
Atomic Force Microscopy ◽  
Fluorescence Microscopy ◽  
Young’S Modulus ◽  
Laser Scanning ◽  
Young's Modulus ◽  
Organic Liquid ◽  
Confocal Laser Scanning ◽  
Confocal Laser ◽  
Force Microscopy ◽  
Atomic Force

Atomic Force Microscopy (AFM) is used to measure the stiffness and Young's modulus of individual microcapsules that have a chitosan cross-linked shell encapsulating tetradecane.

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