Results 101 to 110 of about 105,558 (310)

AFM for Nanomechanical Assessment of Polymer Overcoatings on Nanoparticle-Decorated Biomaterials

Nanomaterials
Nanoparticle adhesion to polymer and similar substrates may be prone to low nano-Newton forces, disrupting the surface bonds and patterning, potentially reducing the functionality of complex surface patterns.
Jonathan Wood, Dennis Palms, Ruvini Dabare, Krasimir Vasilev, Richard Bright   +4 more
doaj   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Quantitative Nano-characterization of Polymers Using Atomic Force Microscopy

CHIMIA, 2017
The present article offers an overview on the use of atomic force microscopy (AFM) to characterize the nanomechanical properties of polymers. AFM imaging reveals the conformations of polymer molecules at solid– liquid interfaces.
Milad Radiom, Christoph Weder, Katharina M. Fromm, Andreas F. M. Kilbinger, Plinio Maroni, Mathieu A. Ayer, Michela di Giannantonio, Phally Kong, Svilen Kozhuharov, Michal Borkovec   +9 more
doaj   +1 more source

Imaging and NanoManipulation with AFM of bacterial samples in air and liquid environment

, 2009
Màster Oficial en Enginyeria BiomèdicaSince the innovator speech of Nobel laureate Richard Feynman in the early 1959, the progress of nanotechnology has been a succession of inventions and developments.
Meta, Ijoni
core  

Convergent transcription and nested gene models studied by AFM [PDF]

, 2012
Genomic DNA is organised in complex spatial arrangements, and a given stretch of DNA may encode more than one gene. In some cases one gene may be entirely contained within a region of the DNA already occupied by another larger gene. The presence of these
Billingsley, Daniel Jeffrey
core  

A new scanning force microscope for temperature-controlled static and dynamic friction measurements, using an extended normal and lateral working range with high spatial resolution [PDF]

, 2013
In this work, a new and improved SFM is presented. This SFM can measure many variables such as the individual dynamic and active temperature regulation of the sample and the cantilever, miscellaneous friction modes, x-, y-, z- linearization and an ...
Selbeck, Jörn
core   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

Advanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett, Shahad K. Alsaiari, John L. Daristotle, Timothy A. Forster, Alicia Lau, Dhruv Varshney, Rania Afaneh, Andrew R. Hanna, Charles Sloane, David Mankus, Haitao Yu, Jiali Zhai, DongSoo Yun, Lisa H. Tostanoski, Abigail Lytton‐Jean, Dan H. Barouch, Charlotte E. Conn, Robert Langer, Ana Jaklenec, Calum J. Drummond   +19 more
wiley   +1 more source

Atomic Force Microscopy: Step Height Measurement Uncertainty Evaluation

Tehnički Glasnik
The atomic force microscope (AFM) enables the measurement of sample surfaces at the nanoscale. Reference standards with calibration gratings are used for the adjustment and verification of AFM measurement devices.
Andrej Razumić, Biserka Runje, Dragutin Lisjak, Davor Kolar, Amalija Horvatić Novak, Branko Štrbac, Borislav Savković   +6 more
doaj   +1 more source

Coupled molecular and cantilever dynamics model for frequency-modulated atomic force microscopy

Beilstein Journal of Nanotechnology, 2016
A molecular dynamics model is presented, which adds harmonic potentials to the atomic interactions to mimic the elastic properties of an AFM cantilever.
Michael Klocke, Dietrich E. Wolf
doaj   +1 more source

Exploring Pb‐Chelation Chemistry in the Crystallization Dynamics of Halide Perovskites

Advanced Functional Materials, EarlyView.
A mechanism of how Pb‐chelation chemistry governs coordination geometry and initial nucleation behavior at the precursor level of halide perovskite, by regulating the deprotonation state of a chelating additive, is elucidated. This allows for innovative reaction‐system design principles that promote coherent growth while suppressing defect formation in
Byeong Jun Kim, Inseo Cho, Jung Geon Son, Yifan Yu, Gunhee Kim, Eunseo Shin, Seyeon Eom, Minsub Um, Subeom Shin, Hyungju Ahn, Dong Suk Kim, Hochan Song, Hyosung Choi, Jonghee Yang   +13 more
wiley   +1 more source