Touching the microworld with force-feedback optical tweezers
نویسندگان
چکیده
منابع مشابه
Touching the microworld with force-feedback optical tweezers.
Optical tweezers are a powerful tool for micromanipulation and measurement of picoNewton sized forces. However, conventional interfaces present difficulties as the user cannot feel the forces involved. We present an interface to optical tweezers, based around a low-cost commercial force feedback device. The different dynamics of the micro-world make intuitive force feedback a challenge. We prop...
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Single molecule force clamp experiments are widely used to investigate how enzymes, molecular motors, and other molecular mechanisms work. We developed a dual-trap optical tweezers instrument with real-time (200 kHz update rate) force clamp control that can exert 0-100 pN forces on trapped beads. A model for force clamp experiments in the dumbbell-geometry is presented. We observe good agreemen...
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Haptic feedback for microand nanomanipulation is a research area of growing importance with many potential applications in microand biotechnology. Past research often involves the coupling of atomic force microscopes to haptic devices, but the results are not satisfactory. We propose to adopt a different approach, which consists of contactless manipulation, in particular by using optical tweeze...
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Optical droplet manipulation techniques typically generate small forces or require special substrates. This paper describes the concept of an optofluidic tweezer, where focused light energy at the interface of an oil droplet and its carrier fluid generates balanced thermocapillary flows which trap the droplet. The forces are attractive, and the large magnitudes (on the order of μN) enables the ...
متن کاملInvited article: a review of haptic optical tweezers for an interactive microworld exploration.
This paper is the first review of haptic optical tweezers, a new technique which associates force feedback teleoperation with optical tweezers. This technique allows users to explore the microworld by sensing and exerting picoNewton-scale forces with trapped microspheres. Haptic optical tweezers also allow improved dexterity of micromanipulation and micro-assembly. One of the challenges of this...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.010259