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SUMMARY:High-Resolution Macro ATR-FTIR Chemical Imaging Capability at Aust
 ralian Synchrotron Infrared Microspectroscopy (IRM) Beamline
DTSTART;VALUE=DATE-TIME:20211125T010000Z
DTEND;VALUE=DATE-TIME:20211125T011500Z
DTSTAMP;VALUE=DATE-TIME:20260306T082721Z
UID:indico-contribution-4324@events01.synchrotron.org.au
DESCRIPTION:Speakers: Jitraporn (Pimm) Vongsvivut (Australian Synchrotron)
 \nThis presentation aims to provide a summary on technical aspects and app
 lications of our synchrotron macro ATR-FTIR microspectroscopy\, unique to 
 the Infrared Microspectroscopy (IRM) beamline at ANSTO–Australian Synchr
 otron.1 The device was developed by modifying the cantilever arm of a stan
 dard macro-ATR unit to accept Ge-ATR elements. Coupling synchrotron-IR bea
 m to the Ge-ATR element (*n*=4)\, reduces the beam focus size by a factor 
 of 4 (improving lateral resolution)\, and the mapping step size by 4 times
  relative to the stage step motion. As a result\, the macro ATR-FTIR measu
 rement at our IRM beamline can be performed at minimum projected aperture 
 (sampling spot size) of 1-2 μm using a 20x objective\, and minimum mappin
 g step size of 250 nm\, allowing high-resolution chemical imaging analysis
  with the resolution limit beyond those allowed for standard synchrotron-F
 TIR transmission and reflectance setups. \n\nThe technique has facilitated
  many experiments in a diverse range of research disciplinary. Here\, ther
 e will be presentations based on macro ATR-FTIR technique in archaeology\,
  electrochemistry (battery)\, biomedical and forensic sciences. Apart from
  these\, we will provide additional applications in the fields of food and
  pharmaceutical science\,2-4 single-fibre analysis\,5-6 and dentistry.7\n\
 n**References:**\n[1] J. Vongsvivut\, et al.\, *Analyst* **144**\, 10\, 32
 26-323 (2019).\n[2] A.P. Pax\, et al.\, *Food Chemistry*\, **291**\, 214-2
 22 (2019).\n[3] Y.P. Timilsena\, et al.\, *Food Chemistry*\, **275**\, 457
 -466 (2019).\n[4] D.M. Silva\, et al.\, *Journal of Colloid and Interface 
 Science*\, **587**\, 499-509 (2021).\n[5] S. Nunna\, et al.\, *Journal of 
 Materials Chemistry A*\, **5**\, 7372-7382 (2017).\n[6] C. Haynl\, et al.\
 , *Scientific Reports*\, **10**\, 17624 (2020).\n[7] P.V. Seredin\, et al.
 \, *International Journal of Molecular Sciences*\, **22**\, 6510 (2021).\n
 \nhttps://events01.synchrotron.org.au/event/146/contributions/4324/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4324/
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