Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy

Seoung Mok Yum; In Keun Baek; Dongpyo Hong; Seontae Kim; Kihoon Eom; Jeongmin Jang; Sunmyeong Kim; Matlabjon Sattorov; Min Geol Lee; Sungwan Kim; Michael Adams; Gun Sik Park

doi:10.1109/IRMMW-THz.2019.8873980

Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy

Seoung Mok Yum, In Keun Baek, Dongpyo Hong, Seontae Kim, Kihoon Eom, Jeongmin Jang, Sunmyeong Kim, Matlabjon Sattorov, Min Geol Lee, Sungwan Kim, Michael Adams, Gun Sik Park

Chemical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Fingerprints are common to humans, primates, and koalas but how their role in grip activities is poorly understood. Here, we reveal that the fingerprints control the hydration level of the fingertip, as required for precision gripping, by ultimately maximizing the friction. Electromagnetic waves with frequencies in the megahertz, terahertz, infrared, and visible ranges were used to identify the hydrodynamics in fingerprints, which lead to the steady-state hydration condition in 'dry' and 'wet' conditions. The results suggest that the fingerprint structure functions as a moisture channel for facilitating precision grip.

Original language	English
Title of host publication	IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves
Publisher	IEEE Computer Society Press
ISBN (Electronic)	9781538682852
DOIs	https://doi.org/10.1109/IRMMW-THz.2019.8873980
Publication status	Published - Sept 2019
Event	44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France Duration: 1 Sept 2019 → 6 Sept 2019

Publication series

Name	International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume	2019-September
ISSN (Print)	2162-2027
ISSN (Electronic)	2162-2035

Conference

Conference	44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019
Country/Territory	France
City	Paris
Period	1/09/19 → 6/09/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/IRMMW-THz.2019.8873980

Cite this

Yum, S. M., Baek, I. K., Hong, D., Kim, S., Eom, K., Jang, J., Kim, S., Sattorov, M., Lee, M. G., Kim, S., Adams, M., & Park, G. S. (2019). Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy. In IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves Article 8873980 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2019-September). IEEE Computer Society Press. https://doi.org/10.1109/IRMMW-THz.2019.8873980

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title = "Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy",

abstract = "Fingerprints are common to humans, primates, and koalas but how their role in grip activities is poorly understood. Here, we reveal that the fingerprints control the hydration level of the fingertip, as required for precision gripping, by ultimately maximizing the friction. Electromagnetic waves with frequencies in the megahertz, terahertz, infrared, and visible ranges were used to identify the hydrodynamics in fingerprints, which lead to the steady-state hydration condition in 'dry' and 'wet' conditions. The results suggest that the fingerprint structure functions as a moisture channel for facilitating precision grip.",

author = "Yum, {Seoung Mok} and Baek, {In Keun} and Dongpyo Hong and Seontae Kim and Kihoon Eom and Jeongmin Jang and Sunmyeong Kim and Matlabjon Sattorov and Lee, {Min Geol} and Sungwan Kim and Michael Adams and Park, {Gun Sik}",

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Yum, SM, Baek, IK, Hong, D, Kim, S, Eom, K, Jang, J, Kim, S, Sattorov, M, Lee, MG, Kim, S, Adams, M & Park, GS 2019, Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy. in IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves., 8873980, International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, vol. 2019-September, IEEE Computer Society Press, 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019, Paris, France, 1/09/19. https://doi.org/10.1109/IRMMW-THz.2019.8873980

Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy. / Yum, Seoung Mok; Baek, In Keun; Hong, Dongpyo et al.
IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE Computer Society Press, 2019. 8873980 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2019-September).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy

AU - Yum, Seoung Mok

AU - Baek, In Keun

AU - Hong, Dongpyo

AU - Kim, Seontae

AU - Eom, Kihoon

AU - Jang, Jeongmin

AU - Kim, Sunmyeong

AU - Sattorov, Matlabjon

AU - Lee, Min Geol

AU - Kim, Sungwan

AU - Adams, Michael

AU - Park, Gun Sik

PY - 2019/9

Y1 - 2019/9

N2 - Fingerprints are common to humans, primates, and koalas but how their role in grip activities is poorly understood. Here, we reveal that the fingerprints control the hydration level of the fingertip, as required for precision gripping, by ultimately maximizing the friction. Electromagnetic waves with frequencies in the megahertz, terahertz, infrared, and visible ranges were used to identify the hydrodynamics in fingerprints, which lead to the steady-state hydration condition in 'dry' and 'wet' conditions. The results suggest that the fingerprint structure functions as a moisture channel for facilitating precision grip.

AB - Fingerprints are common to humans, primates, and koalas but how their role in grip activities is poorly understood. Here, we reveal that the fingerprints control the hydration level of the fingertip, as required for precision gripping, by ultimately maximizing the friction. Electromagnetic waves with frequencies in the megahertz, terahertz, infrared, and visible ranges were used to identify the hydrodynamics in fingerprints, which lead to the steady-state hydration condition in 'dry' and 'wet' conditions. The results suggest that the fingerprint structure functions as a moisture channel for facilitating precision grip.

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Yum SM, Baek IK, Hong D, Kim S, Eom K, Jang J et al. Controlled Hydration in Epidermal Ridges Probed by THz Time-Domain Spectroscopy. In IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE Computer Society Press. 2019. 8873980. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz). doi: 10.1109/IRMMW-THz.2019.8873980