WO2008142723A3 - Method and device for measuring circular dichroism in real time - Google Patents

Method and device for measuring circular dichroism in real time Download PDF

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Publication number
WO2008142723A3
WO2008142723A3 PCT/IT2008/000334 IT2008000334W WO2008142723A3 WO 2008142723 A3 WO2008142723 A3 WO 2008142723A3 IT 2008000334 W IT2008000334 W IT 2008000334W WO 2008142723 A3 WO2008142723 A3 WO 2008142723A3
Authority
WO
WIPO (PCT)
Prior art keywords
circular dichroism
real time
measuring circular
diffracted beams
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IT2008/000334
Other languages
French (fr)
Other versions
WO2008142723A2 (en
Inventor
Gabriella Cipparrone
Pasquale Pagliusi
Clementina Provenzano
Alfredo Mazzulla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universita della Calabria
Original Assignee
Universita della Calabria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universita della Calabria filed Critical Universita della Calabria
Priority to EP08763869A priority Critical patent/EP2149040A2/en
Publication of WO2008142723A2 publication Critical patent/WO2008142723A2/en
Publication of WO2008142723A3 publication Critical patent/WO2008142723A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/19—Dichroism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G01N21/23—Bi-refringence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Method and device for measuring the circular dichroism of a sample in which a beam of light passes through the said sample, characterised by the fact that the said beam successively passes through a grating and that the diffracted beams are collected and the signals of the diffracted beams are sent to a computer that through a software calculates the value of the circular dichroism, carrying out the logarithm of the diffracted beams intensities ratio.
PCT/IT2008/000334 2007-05-18 2008-05-19 Method and device for measuring circular dichroism in real time Ceased WO2008142723A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08763869A EP2149040A2 (en) 2007-05-18 2008-05-19 Method and device for measuring circular dichroism in real time

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITCS20070024 ITCS20070024A1 (en) 2007-05-18 2007-05-18 METHOD AND DEVICE FOR THE REAL TIME MEASUREMENT OF CIRCULAR DICROISM
ITCS2007A000024 2007-05-18

Publications (2)

Publication Number Publication Date
WO2008142723A2 WO2008142723A2 (en) 2008-11-27
WO2008142723A3 true WO2008142723A3 (en) 2009-01-08

Family

ID=39884636

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000334 Ceased WO2008142723A2 (en) 2007-05-18 2008-05-19 Method and device for measuring circular dichroism in real time

Country Status (3)

Country Link
EP (1) EP2149040A2 (en)
IT (1) ITCS20070024A1 (en)
WO (1) WO2008142723A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1403559B1 (en) * 2011-01-27 2013-10-31 Università Della Calabria METHOD FOR THE MEASUREMENT OF CHIRO-OPTICAL PROPERTIES IN REAL TIME BASED ON A POLARIZATION PATTERN
US10161797B2 (en) * 2015-07-05 2018-12-25 Purdue Research Foundation Sub-millimeter real-time circular dichroism spectrometer with metasurfaces
JP7045663B2 (en) * 2017-12-04 2022-04-01 学校法人同志社 Birefringence measuring device and birefringence measuring method
EP3722787B1 (en) * 2017-12-07 2024-03-27 Yokogawa Electric Corporation Spectroscopic analyzer
US12007276B2 (en) 2018-03-22 2024-06-11 Purdue Research Foundation Sensor for hyperspectral imaging based on a metasurface-integrated light detector array
JP7700985B2 (en) * 2021-06-11 2025-07-01 国立大学法人徳島大学 Circular dichroism spectrometer and polarizing element used therein
CN119546988A (en) * 2022-08-18 2025-02-28 富士胶片株式会社 Optical Components

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
BLINOV L M ET AL: "Photochromism and holographic grating recording on a chiral side-chain liquid crystalline copolymer containing azobenzene chromophores", CHEM. PHYS, vol. 245, 1999, pages 473 - 485, XP002502928, Retrieved from the Internet <URL:http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFM-3Y9MR96-1B&_user=987766&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000049880&_version=1&_urlVersion=0&_userid=987766&md5=4e6116e2e92388ce3c44f2ea0bb910ac> [retrieved on 20081106] *
CIPPARRONE G ET AL: "Permanent polarization gratings in photosensitive Langmuir-Blodgett films for polarimetric applications", JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B (OPTICAL PHYSICS) OPT. SOC. AMERICA USA, vol. 19, no. 5, May 2002 (2002-05-01), pages 1157 - 1161, XP002502918, ISSN: 0740-3224, Retrieved from the Internet <URL:http://www.opticsinfobase.org/josab/abstract.cfm?uri=josab-19-5-1157> [retrieved on 20081106] *
CIPPARRONE G ET AL: "Permanent polarization gratings in photosensitive Langmuir-Blodgett films", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, vol. 77, no. 14, 2 October 2000 (2000-10-02), pages 2106 - 2108, XP012026258, ISSN: 0003-6951 *
KELLY SHARON M ET AL: "How to study proteins by circular dichroism", BIOCHIMICA ET BIOPHYSICA ACTA(BBA), vol. 1751, no. 2, 10 August 2005 (2005-08-10), pages 119 - 139, XP005009123, ISSN: 1570-9639 *
PAGLIUSI P ET AL: "Spectrograph based on a single diffractive element for real-time measurement of circular dichroism", APPLIED SPECTROSCOPY, vol. 62, no. 5, May 2008 (2008-05-01), pages 465 - 468, XP002502930 *
YOHJI SHINDO ET AL: "A NEW TYPE OF CIRCULAR DICHROISM SPECTROMETER UPGRADED VERSION", REVIEW OF SCIENTIFIC INSTRUMENTS, AIP, MELVILLE, NY, US, vol. 66, no. 4, 1 April 1995 (1995-04-01), pages 3079/3080, XP000501111, ISSN: 0034-6748 *
ZHENG Z ET AL: "Photoinduced chirality in achiral liquid crystalline polymethacrylates containing bisazobenzene and azobenzene chromophores", JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A: CHEMISTRY, vol. 185, no. 2-3, 27 December 2006 (2006-12-27), pages 338 - 344, XP005816328, ISSN: 1010-6030 *

Also Published As

Publication number Publication date
WO2008142723A2 (en) 2008-11-27
ITCS20070024A1 (en) 2008-11-19
EP2149040A2 (en) 2010-02-03

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