Search Results - ning xi

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AFM Control System for Video Rate Imaging and Manipulation

Executive SummaryAtomic force microscopes (AFM), are a very high-resolution type of scanning probe microscope. Imaging speeds, however, are limited by the inertia and resonances of the scanning systems and of the AFM cantilever. It is desirable to increase the scan speed of applications without the need to make physical changes to the dynamics of the...
Published: 6/17/2016   |   Inventor(s): Ning Xi, Bo Song, Jianguo Zhao, Wai Chiu King Lai
Keywords(s):   Category(s): Analytical Instruments, Control Systems, Devices, Nanotechnology

Miniature Steerable Jumping Robot

Executive SummaryMachines and robots that are responsible for gathering information in exploratory settings conventionally require wheels or treads to access the site of investigation. These devices are limited to the terrain that the robot can handle. Maneuvering around obstacles may require robots that can jump. In specific applications like search...
Published: 5/19/2016   |   Inventor(s): Ning Xi, Jianguo Zhao, Jing Xu, Matt Mutka, Li Xiao, Bingtuan Gao
Keywords(s):   Category(s): Devices

Efficient Selection of Carbon Nanotubes by Desired Properties

IntroductionIn the beginning powder form, carbon nanotubes (CNTs) have a wide range of physical dimensions and electrical properties at the level of individual CNTs. A number of researchers have tried various methods of selecting and manipulating (CNTs) produced in batch quantities. However, these processes do not select CNTs by specific dimensions,...
Published: 10/8/2010   |   Inventor(s): Ning Xi, Wai Chiu King Lai, Uche Wejinya
Keywords(s): Carbon Nanotube, DEP Force, MEMS, Micromanipulation, Microprobe, Sonication Category(s): Materials, Nanotechnology

Pneumatic Nano-Probe Tip for Nano-Manipulation and Manufacturing

IntroductionA major problem with nano-manipulation is holding the target. Due to the lack of micro force/flow feedback, the target is often destroyed during its manipulation. It would be highly desirable to have a means for picking up and releasing nano-objects without the above difficulties.Description of TechnologyThe current invention addresses current...
Published: 10/7/2010   |   Inventor(s): Ning Xi, Yantao Shen, Uchechukwu Wejinya
Keywords(s): Micro-suction, Nanomanipulation, Nano-manufacturing, Pneumatic Pressure Category(s): Mechanical, Nanotechnology, Devices

Improved AFM Manipulation of Nano-Objects

IntroductionIn traditional atomic force microscope (AFM) based nano-manipulation systems, a cantilever is used as the probe tip to manipulate nano-sized objects. Because of the need for good contact with the object, a "pre-loaded" force must be exerted by the cantilever on the object, making it difficult for an operator to "feel"...
Published: 9/27/2010   |   Inventor(s): Ning Xi, Jiangbo Zhang, Guangyong Li
Keywords(s): Atomic Force Microscope, Manipulator, Nanomanipulation, Nano-object, Nanoscale, NEMS, Piezoelectric Category(s): Mechanical, Devices, Electrical

Improved Force Sensing on Nano-Manipulated Objects

IntroductionEfficient manipulation of nano-sized objects will require an effective means for sensing the force exerted by a nanoprobe on the object. Current PZT (lead zirconium titante)-based piezoelectric force sensors are limited in their sensitivity.Description of TechnologyBy using a highly sensitive polyvinylidene fluoride (PVDF) piezoelectric...
Published: 9/24/2010   |   Inventor(s): Ning Xi, Yantao Shen, Fathi Salem
Keywords(s): Force Sensor, Integrated Circuit, Microassembly, Micromanipulation, Piezoelectric, Signal Processing Category(s): Nanotechnology, Electrical, Devices

Real-time Nanomanipulation Using AFM

IntroductionAn efficient system for manipulation of nano-sized objects would be greatly aided by the ability of an operator to "feel" the objects he/she is manipulating.Description of TechnologyThe invention proposes an atomic force microscope (AFM) based Augmented Reality System consisting of an AFM connected to a haptic device allowing the...
Published: 9/24/2010   |   Inventor(s): Ning Xi, Wai-Keung Fung, Guangyong Li, Mengmeng Yu
Keywords(s): 1-Azubutadienes, 3-Component Coupling, Beta-Unsaturated Beta-Iminoamines, Hydroamination, Isonitriles, Olefin Polymerization, Pyrrolyl Complex, Substituted Iminoamines, Titanium Catalysis Category(s): Chemicals, Materials, Pharmaceutical