ATR-Spin: An open-source 3D printed device for direct cytocentrifugation onto Attenuated Total Reflectance crystals.

Lab on a Chip ◽  
2021 ◽  
Author(s):  
David Perez-Guaita ◽  
Zack Richardson ◽  
G. Quintas ◽  
Julia Kuligowski ◽  
Diana Eva Bedolla ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Molecular Level ◽  
Point Of Care ◽  
Attenuated Total Reflectance ◽  
Cell Preparation ◽  
Total Reflectance ◽  
Point Of Care Diagnostics ◽  
3D Printed ◽  
Rapid Characterization

Infrared Spectroscopy (IR) enables the direct and rapid characterization of cells at the molecular level. Achieving a rapid and consistent cell preparation is critical for the development of Point-of-Care diagnostics...

Depth Profiling of Stratified Layers Using Variable-Angle ATR

1996 ◽  
Vol 50 (8) ◽  
pp. 1082-1088 ◽  
Author(s):  
Robert A. Shick ◽  
Jack L. Koenig ◽  
Hatsuo Ishida
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Depth Profile ◽  
Molecular Level ◽  
Depth Profiling ◽  
Internal Reflection ◽  
Attenuated Total Reflectance ◽  
Total Reflectance ◽  
Variable Angle

It is shown that variable-angle attenuated total reflectance Fourier transform infrared spectroscopy is a viable technique to recover depth profile information on the molecular level. A number of known step profiles are measured to determine the limits of applicability for this method. Thickness results obtained by using the internal reflection technique are compared with thickness determination with the use of a profilometer.

scholarly journals Electrospun Membranes Based on Polycaprolactone, Nano-Hydroxyapatite and Metronidazole

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 931
Author(s):  
Ioana-Codruţa Mirică ◽  
Gabriel Furtos ◽  
Ondine Lucaciu ◽  
Petru Pascuta ◽  
Mihaela Vlassa ◽  
...  
Keyword(s):  
Fiber Diameter ◽  
Maximum Load ◽  
Guided Bone Regeneration ◽  
Attenuated Total Reflectance ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Total Reflectance ◽  
X Ray ◽  
Electrospun Membranes

The aim of this research was to develop new electrospun membranes (EMs) based on polycaprolactone (PCL) with or without metronidazole (MET)/nano-hydroxyapatite (nHAP) content. New nHAP with a mean diameter of 34 nm in length was synthesized. X-ray diffraction (XRD) and attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR) were used for structural characterization of precursors and EMs. The highest mechanical properties (the force at maximum load, Young’s modulus and tensile strength) were found for the PCL membranes, and these properties decreased for the other samples in the following order: 95% PCL + 5% nHAP > 80% PCL + 20% MET > 75% PCL + 5% nHAP + 20% MET. The stiffness increased with the addition of 5 wt.% nHAP. The SEM images of EMs showed randomly oriented bead-free fibers that generated a porous structure with interconnected macropores. The fiber diameter showed values between 2 and 16 µm. The fiber diameter increased with the addition of nHAP filler and decreased when MET was added. New EMs with nHAP and MET could be promising materials for guided bone regeneration or tissue engineering.

Quick determination and discrimination of commercial hand sanitisers using attenuated total reflectance-Fourier transform infrared spectroscopy and chemometrics

2021 ◽  
Vol 13 (13) ◽  
pp. 1601-1611
Author(s):  
Way Koon Teoh ◽  
Noor Zuhartini Md Muslim ◽  
Md Lukmi Ismail ◽  
Kah Haw Chang ◽  
Ahmad Fahmi Lim Abdullah
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflectance ◽  
Forensic Investigation ◽  
Total Reflectance ◽  
Quick Determination

Quick determination and discrimination of commercial hand sanitisers for forensic investigation.

Discrimination of clinically relevant Candida species by Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR)

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 92065-92072 ◽  
Author(s):  
Sónia Silva ◽  
Flávia Tobaldini-Valerio ◽  
Sofia Costa-de-Oliveira ◽  
Mariana Henriques ◽  
Joana Azeredo ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Species Identification ◽  
Candida Species ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflectance ◽  
Total Reflectance ◽  
Reflectance Ftir

Accurate Candida species identification remains a challenge due to their phenotypic and genotypic similarity.

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