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#characterization #surfacetopography #atomicforcemicroscopy

However, this scheme is energy consuming and may produce massive Joule heating. To reduce energy dissipation and risk of heightened temperatures of skyrmion-based devices, an effective solution is to use electric field instead of current as stimulus.*

In the article “Electric-field-driven non-volatile multi-state switching of individual skyrmions in a multiferroic heterostructure”, Yadong Wang, Lei Wang, Jing Xia, Zhengxun Lai, Guo Tian, Xichao Zhang, Zhipeng Hou, Xingsen Gao, Wenbo Mi, Chun Feng, Min Zeng, Guofu Zhou, Guanghua Yu, Guangheng Wu, Yan Zhou, Wenhong Wang, Xi-xiang Zhang and Junming Liu realize an electric-field manipulation of skyrmions in a nanostructured ferromagnetic/ferroelectrical heterostructure at room temperature via an inverse magneto-mechanical effect.*

Intriguingly, such a manipulation is non-volatile and exhibits a multistate feature. Numerical simulations indicate that the electric-field manipulation of skyrmions originates from strain-mediated modification of effective magnetic anisotropy and Dzyaloshinskii–Moriya interaction.*

The results presented in the article open a direction for constructing low-energy-dissipation, non-volatile, and multistate skyrmion-based spintronic devices.*

To minimize the influence of the magnetic field from the MFM tip on the magnetic domain structure during the magnetic force microscopy ( MFM ) measurements, NANOSENSORS™ PPP-LM-MFMR low moment magnetic AFM probes were used.* https://www.nanosensors.com/pointprobe-plus-magnetic-force…

These MFM probes are designed for magnetic force microscopy with reduced disturbance of the magnetic sample by the tip and enhanced lateral resolution compared to the standard PPP-MFMR probe. The distance between the tip and sample was maintained at a constant distance of 30 nm.*

Please have a look at the NANOSENSORS blog for the full citation and a direct link to the full article.

#multiferroics #spintronics #磁力显微镜 #AFMプローブ #SPM探针 #ScanningProbeMicroscopy

The Ultra-Short Cantilevers series https://www.nanoworld.com/ultra-short-cantilevers-afm-tips combines very small cantilevers capable of resonating in the MHz regime and a very sharp and wear resistant tip and is dedicated to High-Speed AFM (HS-AFM). The Ultra-Short Cantilevers series consists of six different types of probes which cover the complete range of high speed scanning applications, from non-contact mode to contact mode, from measurements in air to measurements in liquid.

More information such as high speed videos, an image gallery and a regularly updated reference list of scientific articles on high speed AFM can be found on the dedicated website: https://www.highspeedscanning.com/ . You can also find references to scientific articles mentioning the use of NanoWorld USC AFM probes on the NanoWorld blog.

If you haven’t seen the USC screencast yet have a look.

#高速AFMカンチレバー #highspeedAtomicForceMicroscopy #videorateAtomicForceMicroscopy #AtomicForceMicroscopy

In their study “Insights into dynamic sliding contacts from conductive atomic force microscopy” Nicholas Chan, Mohammad R. Vazirisereshk, Ashlie Martini and Philip Egberts used atomic force microscopy (AFM) to simultaneously acquire lattice resolution images of the lateral force and current flow through the tip–sample contact formed between a highly oriented pyrolytic graphite (HOPG) sample and a conductive diamond AFM probe to explore the underlying mechanisms and correlations between friction and conductivity. Both current and lateral force exhibited fluctuations corresponding to the periodicity of the HOPG lattice.

Unexpectedly, while lateral force increased during stick events of atomic stick-slip, the current decreased exponentially.*

The results presented in the study by Nicholas Chan et al. confirm that the correlation between conduction and atom–atom distance previously proposed for stationary contacts can be extended to sliding contacts in the stick-slip regime.*

A NANOSENSORS™ conductive diamond coated AFM probe CDT-CONTR was used to obtain all experimental data presented in their manuscript.* https://www.nanosensors.com/conductive-diamond-coated-tip…

Please have a look at the NANOSENSORS blog for the full citation and a direct link to the full article.

#HOPG #conductiveatomicforcmicroscopy #frictionforcemicroscopy #MaterialsResearch #AFMプローブ

The NANOSENSORS™ Membrane-type Surface-stress Sensor – MSS is a non-packaged MEMS sensor, a silicon membrane platform supported with four beams on which piezoresistors are embedded. It is mainly dedicated to R&D in the areas of olfactory sensing and electronic noses.

There are currently two major applications for this type of sensor:

-- the MSS has a great potential as a core component for electronic (artificial) nose systems / olfactory sensing systems utilized in e.g., medical, food, environment, safety and security fields.

-- the MSS can also be used for assessment of various materials like organic conductors, magnetic and superconductor materials in torque magnetometry.

To find out more please have a look at the video or at the NANOSENSORS™ MSS webpage https://www.mss-sensor.com/ or the NANOSENSORS™Special Developments List https://www.nanosensors.com/pdf/SpecialDevelopmentsList.pdf . On these pages you will not only get more information on which types of MSS Sensors are currently available but you will also find further information on the NANOSENSORS™ MSS 8 Channel Readout Module ( MSS-8RM ). The MSS-8RM is a basic electronic module to operate and to readout NANOSENSORS™ MSS that can be integrated in the researchers own set-up.

#ENose #NanomechanicalSensing #ArtificialNose #OlfactorySystem

Since the first publication of this screencast that presents the uniqprobe types qp-BioAC, qp-BioT, qp-SCONT and qp-CONT , three further types of uniqprobe AFM probes have been introduced:

- qp-BioAC-CI – a version of uniqprobe™ BioAC with Rounded Tips for Cell Imaging

- qp-fast – three different uniqprobe™ cantilevers on one support chip for Soft- , Standard- , Fast Tapping/Dynamic AFM Imaging

and qp-HBC – the uniqprobe™ – HeartBeatCantilever

To find out more please have a look at the NANOSENSORS™ uniqprobe brochure https://www.nanosensors.com/…/3cfe8ca6ad48a762e2668b7d2b205… or the individual product pages on the NANOSENSORS webpage.

Additionally we have also put tipless versions of the qp-SCONT, qp-CONT and the qp-BioT ( SD-qp-BioT-TL, SD-qp-CONT-TL, SD-qp-SCONT-TL) and uniqprobe tipless cantilever arrays ( SD-qp-TL8a and SD-qp-TL8b ) on the NANOSENSORS special developments list. https://www.nanosensors.com/pdf/SpecialDevelopmentsList.pdf

Feel free to browse or let us know if you have any questions via info(at)nanosensors.com.

#AFMカンチレバー #AtomicForceMicroscopy #cellbiology #CellMembrane

The results obtained for the SEBS, in relation to the duration of exposure, showed superficial changes that cause a decrease in the surface energy (s) and, therefore, a decrease in surface roughness. This led to a reduction in mechanical performance, decreasing the tensile strength by about 50% for exposure times of around 200 hours.*

NanoWorld Pointprobe® NCH AFM probes were used in the Atomic force microscopy (AFM) applied to determine the surface topography and roughness of the aged samples. https://www.nanoworld.com/pointprobe-tapping-mode-afm-tip…

Please have a look at the NanoWorld blog for the full citation and a direct link to the full article.

#AFMprobes #MaterialDegradation #BlockCopolymer #MaterialsScience #原子力显微镜 #AFM探针 #SPMプローブ

Their study shows that both thermally stable polyimide, as well as temperature-sensitive PET can be used as flexible host substrates, combined with a gentle, AgNW plasma curing. This is possible by adjusting the fabrication sequence to accommodate the plasma curing step, depending on the host substrate. As a result, embedded AgNW electrodes, transferred from polyimide-to-PET and from PET-to-PET are obtained, with optical transmittance of ~80% (including the substrate) and sheet resistance of ~13 Ω/sq., similar to electrodes transferred from glass-to-glass substrates.*

The embedded AgNW electrodes on PET show superior performance in bending tests, as compared to indium-tin-oxide electrodes and can be easily combined with metal oxide films for device implementation. The introduced approach, involving low-cost flexible substrates, AgNW spray-coating and plasma curing, is compatible with high-throughput, roll-to-roll processing.*

The impact of the introduced processes concerns therefore applications where high-throughput production must be combined with sensitive, flexible substrates and ultra-thin device architectures, like OLEDs and organic- or perovskite-based photovoltaics.*

The sample surfaces were characterized with atomic force microscopy (AFM) in tapping mode, using high-resolution NANOSENSORS™ SuperSharpSilicon™ SSS-NCHR AFM probes. https://www.nanosensors.com/supersharpsilicon-non-contact…

Please have a look at the NANOSENSORS blog for the full citation and a direct link to the full article

#nanoscience #SilverNanowires #AtomicForceMicroscopy #AFMプローブ #SPM探针 #polymers

How membrane shape influences ESCRT-III polymerization and how ESCRT-III shapes membranes is yet unclear.*

In the article “Human ESCRT-III polymers assemble on positively curved membranes and induce helical membrane tube formation” Aurélie Bertin, Nicola de Franceschi, Eugenio de la Mora, Sourav Maity, Maryam Alqabandi, Nolwen Miguet, Aurélie di Cicco, Wouter H. Roos, Stéphanie Mangenot, Winfried Weissenhorn and Patricia Bassereau describe how human core ESCRT-III proteins, CHMP4B, CHMP2A, CHMP2B and CHMP3 are used to address this issue in vitro by combining membrane nanotube pulling experiments, cryo-electron tomography and Atomic Force Microscopy.*

The authors show that CHMP4B filaments preferentially bind to flat membranes or to tubes with positive mean curvature.*

The results presented in the article cited above underline the versatile membrane remodeling activity of ESCRT-III that may be a general feature required for cellular membrane remodeling processes.*

The authors provide novel insight on how mechanics and geometry of the membrane and of ESCRT-III assemblies can generate forces to shape a membrane neck.*

NanoWorld Ultra-Short AFM Cantilevers USC-F1.2-k0.15 were used for the High-speed Atomic Force Microscopy ( HS-AFM ) experiments presented in this article.* https://www.nanoworld.com/Ultra-Short-Cantilevers-USC-F1.2…

Please have a look at the NanoWorld blog for the full citation and a direct link to the full article.

#MembraneBiophysics #HSAFM #AtomicForceMicroscopy #AFMプローブ #ScanningProbeMicroscopy

#cellbiology #cellwall #plantbiology #atomicforcemicroscopy

In “Development of a Lidocaine-Loaded Alginate/CMC/PEO Electrospun Nanofiber Film and Application as an Anti-Adhesion Barrier” Seungho Baek, Heekyung Park, Youngah Park, Hyun Kang and Donghyun Lee describe how the drug release behavior was controlled by crosslinking lidocaine-loaded alginate/carboxymethyl cellulose (CMC)/polyethylene oxide (PEO) nanofiber films prepared by electrospinning.*

Lidocaine is mainly used as an anesthetic and is known to have anti-adhesion effects.*

Based on the results presented in the article, this study shows that the drug release behavior can be controlled by using CaCl2 as a nontoxic crosslinking agent to produce a good anti-adhesion barrier that can prevent unnecessary tissue adhesion at a surgical site.*

The authors selected atomic force microscopy (AFM) using NANOSENSORS™ PointProbe® Plus PPP-NCHR AFM cantilevers to analyze the electrospun films.* https://www.nanosensors.com/pointprobe-plus-non-contact…

Please have a look at the NANOSENSORS blog for the full citation and a direct link to the full article.

#electrospinning #crosslinking #原子力显微镜探针 #AtomicForceMicroscopy #AFMプローブ