Fabrication and optical trapping of handling structures for re-configurable microsphere magnifiers

Bañas, Andrew Rafael; Vizsnyiczai, Gaszton; Búzás, András; Palima, Darwin; Kelemen, Lóránd; Ormos, Pál; Glückstad, Jesper

doi:10.1117/12.2003752

Cited by 6 publications

(4 citation statements)

References 19 publications

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“…Second, it shall also be able to move the microsphere to track a moving object, which is essential for biological applications, such as observation of live bacteria and viruses. * Electronic address: Leonid˙Krivitskiy@dsi.a-star.edu.sg Optical tweezers have been used for locomotion of microspheres both for imaging and nano-focusing applications [5][6][7][8]. However, such setups may be costly, as they require additional components (light source, focusing objective lens, and dichroic optics).…”

Section: Introductionmentioning

confidence: 99%

Locomotion of microspheres for super-resolution imaging

Krivitsky

Wang

et al. 2013

Sci Rep

113

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Super-resolution virtual imaging by micron sized transparent beads (microspheres) was recently demonstrated by Wang et al. Practical applications in microscopy require control over the positioning of the microspheres. Here we present a method of positioning and controllable movement of a microsphere by using a fine glass micropipette. This allows sub-diffraction imaging at arbitrary points in three dimensions, as well as the ability to track moving objects. The results are relevant to a broad scope of applications, including sample inspection, microfabrication, and bio-imaging.

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Section: Introductionmentioning

confidence: 99%

Locomotion of microspheres for super-resolution imaging

Krivitsky

Wang

et al. 2013

Sci Rep

113

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“…For example, fluorescent material [115] or gold nanoparticles [116] had been added to microtools using solgel or protein based chemical binders. We also present initial progress on a microassembly approach to build a composite lens microtool for high resolution microscopy [117].…”

Section: Discussionmentioning

confidence: 99%

A Next Generation BioPhotonics Workstation

Glückstad

Palima

Tauro

et al. 2011

Optics in the Life Sciences

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, whose contributions remain relevant to our present work. The BRC group that hosted my external stay and fabricated the microtools that we trap, Lόránd Kelemen, Pál Ormos, Gaszton Vizsnyiczai, Badri Aekbote, András Búzás. Collaborators at Aarhus University and Copenhagen University as well as the people at the business development side for helping me appreciate the things I build in the laboratory. Rune Christiansen and the rest of DTU Danchip for fabricating our matched filters. And the Danish Research Council (FTP) for funding. I would also like to express my thanks to my examiners, Tomáš Čižmár and Simon Hanna whose comments have helped improved this thesis. Kirstine Berg-Sørensen, also for the helpful comments and for facilitating practical matters regarding the thesis. For the less technical aspects that nonetheless contribute to the grand scheme of things, as well as my mental health, I also thank my family for understanding my extended absence, my officemates and neighbours for standing in as co-PhDs, my very kind landlady, Birgit, for not minding all those scattered computers, cables and musical instruments, and the very nice or strange people I meet everyday at work.

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“…Figure 4 shows examples of microrobot designs that allow optical trapping and manipulation. 41 , while (b) was used as support structure for maneuvering polystyrene microspheres 42 .…”

Section: General Considerationsmentioning

confidence: 99%

Rational design of light-controlled microrobots

Bunea

Engay

Chouliara

et al. 2018

Advanced Manufacturing Technologies for Micro- And Nanosystems in Security and Defence

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Light Robotics is one of the newest progenies of the robotics family, bringing together advances in microfabrication and optical manipulation with intelligent control ideas from robotics and Fourier optics. The development of lightcontrollable microrobots capable of performing specific tasks at the microscale requires the ability to sculpt the two protagonists of the story: the light and the microrobots. Complex light sculpting for optical trapping has been in focus for over three decades, and its importance for controlling microscopic objects is well understood. Designing intricate microrobots for the task is a more recent development facilitated by state-of-the-art microfabrication techniques, and particularly by two-photon polymerization. The full 3D design freedom offered by two-photon polymerization opens the door for imagination, while at the same time bringing the responsibility of rationally designing microrobots tailored to specific tasks. In addition to shape and topology features, the surface chemistry of the microrobots can also help steer them towards specific applications. This paper will discuss strategies for the design and fabrication of light-controllable microrobots as a toolbox for biomedical applications.

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Fabrication and optical trapping of handling structures for re-configurable microsphere magnifiers

Cited by 6 publications

References 19 publications

Locomotion of microspheres for super-resolution imaging

Locomotion of microspheres for super-resolution imaging

A Next Generation BioPhotonics Workstation

Rational design of light-controlled microrobots

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