Results 11 to 20 of about 541 (160)
Rotating Gold Nanomotors for High-Resolution Mapping of Subcellular Nanomotions. [PDF]
Small MethodsA nanomotor‐based method uses optically driven, rotating gold nanorods to detect nanometer‐scale cellular movements with 10 nm spatial and millisecond temporal resolution. Applied to live endothelial cells, the technique reveals subcellular mechanical activity and distinct frequency regimes, capturing transient, localized oscillations.
Tornéus E +3 more
europepmc +2 more sources
Dual-Stage Nanopositioning for High-Speed Scanning Probe Microscopy [PDF]
IEEE/ASME Transactions on Mechatronics, 2014 IEEE/ASME Transactions on Mechatronics, 19 (3)
Tuma, Tomas +5 more
openaire +2 more sources
Mathematics, 2021 This paper presents a novel third-order super-twisting-like integral sliding mode controller (3-ISMC) for trajectory tracking of nanopositioning applications.
Guangwei Wang, Bo Wang, Chengxi Zhang
doaj +1 more source
Nonlinear Optimal Tracking Control of a Piezoelectric Nanopositioning Stage [PDF]
SPIE Proceedings, 2006 High performance nanopositioning stages, used in a variety of applications such as atomic force microscopy and three-dimensional nanometer-scale lithography, require stringent position control over relatively large displacements and a broad frequency range.
Ralph C. Smith, William S. Oates
openaire +2 more sources
IET Cyber-systems and Robotics, 2020 This study proposes a robust second-order terminal sliding mode control with perturbation estimation (2OTSMCPE) strategy with application to trajectory tracking control of the flexure-based nanopositioning system.
Ali Al-Ghanimi +7 more
doaj +1 more source
Long-Stroke Nanopositioning Stage Driven by Piezoelectric Motor [PDF]
Journal of Sensors, 2014 This paper reported a biaxial nanopositioning stage single-driven by piezoelectric motor. The employed piezoelectric motor can perform two different driving modes, namely, AC drive mode to drive in long-stroke and at high-speed and DC scanning mode with the high-resolution of several nanometers, which satisfies the requirements of both long-stroke and ...
Yong Wang +4 more
openaire +1 more source
On the Disturbance Rejection of a Piezoelectric Driven Nanopositioning System
IEEE Access, 2020 Nanopositioning systems are very popular and playing an increasingly vital role in micro and nano-scale positioning industry due to their unique ability to achieve high-precision and high-speed operation.
Wei Wei +3 more
doaj +1 more source
Macrophages Mediate Mesoscale Brain Mechanical Homeostasis. [PDF]
Adv MaterWe investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
So WY +11 more
europepmc +2 more sources
Experimental Validation of Ultra-Precision Nanopositioning System
IEEE Access, 2021 In this paper, the development of an ultra-precision XY nanopositioning stage is presented. For system structure, the actuator decoupled parallel compliant mechanism is designed to have the same dynamics in both x- and y-direction so that the coupling ...
Jaeyoung Kim +3 more
doaj +1 more source
Enhanced Signal-to-Noise and Fast Calibration of Optical Tweezers Using Single Trapping Events
Micromachines, 2021 The trap stiffness us the key property in using optical tweezers as a force transducer. Force reconstruction via maximum-likelihood-estimator analysis (FORMA) determines the optical trap stiffness based on estimation of the particle velocity from ...
Alexander B. Stilgoe +2 more
doaj +1 more source