Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes

D. Paparo; K.J. Tielrooij; L. Piatkowski; H.J. Bakker; M. Bonn

doi:10.1109/ICIMW.2010.5612691

Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes

D. Paparo, K.J. Tielrooij, L. Piatkowski, H.J. Bakker, M. Bonn

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We have investigated hydrated model membranes, formed by stacked bilayers of unsaturated lipids, by means of terahertz time-domain and infrared spectroscopy. Terahertz spectroscopy enables the investigation of water dynamics, owing to its sensitivity to dielectric relaxation processes associated with water reorientation. By controlling the number of water molecules per lipid molecule in the system, we elucidate how the interplay between the model membrane and water molecules results in different water dynamics. For decreasing hydration levels, we observe the appearance of new types of water dynamics: the collective bulklike dynamics become less pronounced, whereas an increased amount of both very slowly reorienting (i.e., irrotational) and very rapidly reorienting (i.e., fast) water molecules appear.

Original language	English
Title of host publication	35th International Conference on Infrared, Millimeter, and Terahertz Waves
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	2
ISBN (Electronic)	978-1-4244-6657-3
DOIs	https://doi.org/10.1109/ICIMW.2010.5612691
Publication status	Published - 28 Oct 2010
Externally published	Yes
Event	35th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2010 - Rome, Italy Duration: 5 Sept 2010 → 10 Sept 2010 Conference number: 35

Conference

Conference	35th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2010
Abbreviated title	IRMMW-THz
Country/Territory	Italy
City	Rome
Period	5/09/10 → 10/09/10

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Paparo, D., Tielrooij, K. J., Piatkowski, L., Bakker, H. J., & Bonn, M. (2010). Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes. In 35th International Conference on Infrared, Millimeter, and Terahertz Waves Article 5612691 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICIMW.2010.5612691

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title = "Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes",

abstract = "We have investigated hydrated model membranes, formed by stacked bilayers of unsaturated lipids, by means of terahertz time-domain and infrared spectroscopy. Terahertz spectroscopy enables the investigation of water dynamics, owing to its sensitivity to dielectric relaxation processes associated with water reorientation. By controlling the number of water molecules per lipid molecule in the system, we elucidate how the interplay between the model membrane and water molecules results in different water dynamics. For decreasing hydration levels, we observe the appearance of new types of water dynamics: the collective bulklike dynamics become less pronounced, whereas an increased amount of both very slowly reorienting (i.e., irrotational) and very rapidly reorienting (i.e., fast) water molecules appear.",

author = "D. Paparo and K.J. Tielrooij and L. Piatkowski and H.J. Bakker and M. Bonn",

year = "2010",

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doi = "10.1109/ICIMW.2010.5612691",

language = "English",

booktitle = "35th International Conference on Infrared, Millimeter, and Terahertz Waves",

publisher = "Institute of Electrical and Electronics Engineers",

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Paparo, D, Tielrooij, KJ, Piatkowski, L, Bakker, HJ & Bonn, M 2010, Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes. in 35th International Conference on Infrared, Millimeter, and Terahertz Waves., 5612691, Institute of Electrical and Electronics Engineers, 35th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2010, Rome, Italy, 5/09/10. https://doi.org/10.1109/ICIMW.2010.5612691

Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes. / Paparo, D.; Tielrooij, K.J.; Piatkowski, L. et al.
35th International Conference on Infrared, Millimeter, and Terahertz Waves. Institute of Electrical and Electronics Engineers, 2010. 5612691.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Tielrooij, K.J.

AU - Piatkowski, L.

AU - Bakker, H.J.

AU - Bonn, M.

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N2 - We have investigated hydrated model membranes, formed by stacked bilayers of unsaturated lipids, by means of terahertz time-domain and infrared spectroscopy. Terahertz spectroscopy enables the investigation of water dynamics, owing to its sensitivity to dielectric relaxation processes associated with water reorientation. By controlling the number of water molecules per lipid molecule in the system, we elucidate how the interplay between the model membrane and water molecules results in different water dynamics. For decreasing hydration levels, we observe the appearance of new types of water dynamics: the collective bulklike dynamics become less pronounced, whereas an increased amount of both very slowly reorienting (i.e., irrotational) and very rapidly reorienting (i.e., fast) water molecules appear.

AB - We have investigated hydrated model membranes, formed by stacked bilayers of unsaturated lipids, by means of terahertz time-domain and infrared spectroscopy. Terahertz spectroscopy enables the investigation of water dynamics, owing to its sensitivity to dielectric relaxation processes associated with water reorientation. By controlling the number of water molecules per lipid molecule in the system, we elucidate how the interplay between the model membrane and water molecules results in different water dynamics. For decreasing hydration levels, we observe the appearance of new types of water dynamics: the collective bulklike dynamics become less pronounced, whereas an increased amount of both very slowly reorienting (i.e., irrotational) and very rapidly reorienting (i.e., fast) water molecules appear.

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M3 - Conference contribution

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BT - 35th International Conference on Infrared, Millimeter, and Terahertz Waves

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T2 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2010

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ER -

Time domain terahertz spectroscopy for investigating the dielectric relaxation dynamics of water in model membranes

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