EP 3881054 A4 20220817 - AN OPTICAL NANO-MANIPULATOR FOR PARTICLES IN A FLUID
Title (en)
AN OPTICAL NANO-MANIPULATOR FOR PARTICLES IN A FLUID
Title (de)
OPTISCHER NANO-MANIPULATOR FÜR PARTIKEL IN EINEM FLUID
Title (fr)
NANOMANIPULATEUR OPTIQUE DE PARTICULES DANS UN FLUIDE
Publication
Application
Priority
- IN 201841042881 A 20181114
- IB 2019059782 W 20191114
Abstract (en)
[origin: WO2020100077A1] A Colloidal Optical Tweezer (CPT) 100 for use in a colloidal solution containing nano particlesis disclosed, comprising a disc 102 of plasmonic material coupled to an end of a dielectric nanorod 104. When a low power polarised laser beam is focussed on the CPT 100, the disc work as a plasmonic antenna to trap the nano particles based on a plasmonic gradient force of localized and enhanced electromagnetic intensity in optical near field generated by the discs, and the CPT100 is trapped to the light beam on account of far field optical forces acting on the dielectric nanorod as a result of the light beam. Steering the light beam enables movement of the CPT100 to desired locations where the trapped nano particles can be released. The CPT100 can work in any microfluidic chamber, i.e. does not require nano patterned surfaces.
IPC 8 full level
G01N 21/00 (2006.01); B01L 3/00 (2006.01); B82Y 15/00 (2011.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); G01N 1/00 (2006.01); H05H 3/04 (2006.01)
CPC (source: EP)
B01L 3/502761 (2013.01); B01L 2200/0668 (2013.01); B01L 2400/0454 (2013.01); B82Y 15/00 (2013.01); B82Y 20/00 (2013.01)
Citation (search report)
- [X] WO 2009018183 A2 20090205 - HARVARD COLLEGE [US], et al
- [A] GHOSH SOUVIK ET AL: "Mobile nanotweezers for active colloidal manipulation", SCIENCE ROBOTICS, vol. 3, no. 14, 10 January 2018 (2018-01-10), XP055939300, Retrieved from the Internet <URL:https://www.researchgate.net/profile/Souvik-Ghosh-23/publication/322388528_Mobile_nanotweezers_for_active_colloidal_manipulation/links/5c9bb523a6fdccd4603f217e/Mobile-nanotweezers-for-active-colloidal-manipulation.pdf> [retrieved on 20220706], DOI: 10.1126/scirobotics.aaq0076
- [A] MATHIEU L JUAN ET AL: "Plasmon nano-optical tweezers", NATURE PHOTONICS, vol. 5, no. 6, 31 May 2011 (2011-05-31), pages 349 - 356, XP055197251, ISSN: 1749-4885, [retrieved on 20220706], DOI: 10.1038/nphoton.2011.56
- [A] JER-SHING HUANG ET AL: "Origin and Future of Plasmonic Optical Tweezers", NANOMATERIALS, vol. 5, no. 2, 12 June 2015 (2015-06-12), pages 1048 - 1065, XP055579150, DOI: 10.3390/nano5021048
- See references of WO 2020100077A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020100077 A1 20200522; EP 3881054 A1 20210922; EP 3881054 A4 20220817
DOCDB simple family (application)
IB 2019059782 W 20191114; EP 19885440 A 20191114