PointProbe® Plus (PPP)

Graphene-Reinforced Biodegradable Resin Composites for Stereolithographic 3D Printing of Bone Structure Scaffolds

by NANOSENSORS
7 July 201915 March 2023
Science & Technology

UV-crosslinkable graphene-reinforced biodegradable nanocomposites using SLA 3D printing technology can potentially remove important cost barriers for personalized biological tissue engineering as compared to the traditional… Read More »Graphene-Reinforced Biodegradable Resin Composites for Stereolithographic 3D Printing of Bone Structure Scaffolds

Selective oxidation of B800 bacteriochlorophyll a in photosynthetic light-harvesting protein LH2

by NANOSENSORS
24 March 201915 March 2023
Science & Technology

Figure 6 from «Selective oxidation of B800 bacteriochlorophyll a in photosynthetic light-harvesting protein LH2” by Y. Saga et al.: FM-AFM images of native LH2 (A) and oxidized LH2 (B) adsorbed on mica taken in 20 mM Tris buffer containing 150 mM NaCl (pH 8.0). Left: wide images. Middle: locally enlarged images of single LH2 proteins. Right: overlapped height-profiles of ten proteins. NANOSENSORS PPP-NCHAuD AFM probes were used.

Engineering chlorophyll (Chl) pigments that are bound to photosynthetic light-harvesting proteins is one promising strategy to regulate spectral coverage for photon capture and to improve… Read More »Selective oxidation of B800 bacteriochlorophyll a in photosynthetic light-harvesting protein LH2

5′-(CGA)n sequence-assisted pH-controlled assembly of supramolecular DNA nanostructure

by NANOSENSORS
18 January 201915 March 2023
Science & Technology

Figure 5. from “5′-(CGA)n sequence-assisted pH-controlled assembly of supramolecular DNA nanostructure” by Yuting Yan et al.: AFM images of the nanostructures formed by DNA G-quadruplexes self-assembly in KOAc buffer solution; (a,b) SG2 at pH 9.0, (c,d) SG2 at pH 4.5, (e,f) a mixture of SG2 and CSG2 at pH 4.5, (g,h) a mixture of SG2 and CSG2 at pH 9.0. The length of side is 2 µm and the scale bar is 500 nm. NANOSENSORS™ PointProbe® Plus PPP-NCHR AFM probes were used for all AFM images.

In the research article “5′-(CGA)n sequence-assisted pH-controlled assembly of supramolecular DNA nanostructure” Yuting Yan, Yanwei Cao, Chunsheng Xiao, Yang Li, Xiaoxuan Xiang and Xinhua Guo… Read More »5′-(CGA)n sequence-assisted pH-controlled assembly of supramolecular DNA nanostructure

Optical control of polarization in ferroelectric heterostructures

by NANOSENSORS
17 December 201815 March 2023
Science & Technology

Figure 1 from “Optical control of polarization in ferroelectric heterostructures”: Electrically induced polarization switching in the MoS2/BaTiO3/SrRuO3 junction. a, b PFM phase (a) and amplitude (b) images after application of a negative voltage pulse (−5 V, 0.5 s) to the MoS2 flake. The 12-u.c.-thick BTO film underneath the MoS2 flake is fully switched to the upward polarization, Pup. c, d PFM phase (c) and amplitude (d) images after application of several positive voltage pulses (+5 V, 0.5 s) to the MoS2 flake. BTO underneath the MoS2 flake is fully switched to downward polarization, Pdown. The polarization state of the bare BTO film (at the lower right corner) is not affected by the electrical bias. e, f The I–V characteristics of the same junction measured in the dark and during illumination. The tunneling current for the OFF state (Pup) is largely increased under illumination. Silicon AFM probes with Pt/Ir conductive coating and nominal stiffness of 3 N m−1 (PPP-EFM, NANOSENSORS) were used to perform the KPFM and PFM measurements.

“In the ferroelectric devices, polarization control is usually accomplished by application of an electric field.”* In the article “Optical control of polarization in ferroelectric heterostructures”… Read More »Optical control of polarization in ferroelectric heterostructures

Room Temperature Polarization Phenomena in Nanocrystalline and Epitaxial Thin Films of Gd-Doped Ceria Studied by Kelvin Probe Force Microscopy

by NANOSENSORS
4 December 201815 March 2023
Science & Technology

Figure 1 from "Room Temperature Polarization Phenomena in Nanocrystalline and Epitaxial Thin Films of Gd-Doped Ceria Studied by Kelvin Probe Force Microscopy": Schematic of the experimental setup, NANOSENSORS PPP-NCST-Pt AFM probes were used

In their study “Room Temperature Polarization Phenomena in Nanocrystalline and Epitaxial Thin Films of Gd-Doped Ceria Studied by Kelvin Probe Force Microscopy” Kerstin Neuhaus, Giuliano… Read More »Room Temperature Polarization Phenomena in Nanocrystalline and Epitaxial Thin Films of Gd-Doped Ceria Studied by Kelvin Probe Force Microscopy

Happy Swiss National Holiday with Smallest Swiss Cross

by NANOSENSORS
1 August 201715 March 2023
News & Events

20 bromine atoms positioned on a sodium chloride surface using the tip of an atomic force microscope at room temperature, creating a Swiss cross with the size of 5.6nm. The structure is stable at room temperature and was achieved by exchanging chlorine with bromine atoms. (Fig: University of Basel, Department of Physics), image made with NANOSENSORS PPP-NCL AFM tip

Basel University : Smallest Swiss Cross – Made of 20 Single Atoms ( a NANOSENSORS PPP-NCL was used for this image)

Long-range Stripe Nanodomains in Epitaxial (110) BiFeO 3 Thin Films on (100) NdGaO 3 Substrate

by NANOSENSORS
24 July 201715 March 2023
Science & Technology

Figure 2: AFM topography images of; (a) 130 nm BFO film grown on NGO and (b) on 100 nm LSCO layered NGO. (c,d) Section analysis along the lines drawn in (c) and (d), respectively, showing the puckering of the surfaces. from: Long-range Stripe Nanodomains in Epitaxial (110) BiFeO3 Thin Films on (100) NdGaO3 Substrate

NANOSENSORS PtIr coated PPP-EFM AFM tips were used for the PFM imaging in this interesting paper. Yogesh Sharma, Radhe Agarwal, Charudatta Phatak, Bumsoo Kim, Seokwoo… Read More »Long-range Stripe Nanodomains in Epitaxial (110) BiFeO 3 Thin Films on (100) NdGaO 3 Substrate