Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping

Bjorn Paulson, Inchul Shin, Hayoung Jeong, Byungjoo Kong, Reza Khazaeinezhad, Sreekantha Reddy Dugasani, Woohyun Jung, Boram Joo, Hoi Youn Lee, Sungha Park, Kyunghwan Oh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A new route to systematically control the optical dispersion properties of surfactant-free deoxyribonucleic acid (DNA) thin solid films was developed by doping them with vitamin B2, also known as riboflavin. Surfactant-free DNA solid films of high optical quality were successfully deposited on various types of substrates by spin coating of aqueous solutions without additional chemical processes, with thicknesses ranging from 18 to 100 nm. Optical properties of the DNA films were investigated by measuring UV-visible-NIR transmission, and their refractive indices were measured using variable-angle spectroscopic ellipsometry. By doping DNA solid films with riboflavin, the refractive index was consistently increased with an index difference Δn ≥ 0.015 in the spectral range from 500 to 900 nm, which is sufficiently large to make an all-DNA optical waveguide. Detailed correlation between the optical dispersion and riboflavin concentration was experimentally investigated and thermo-optic coefficients of the DNA-riboflavin thin solid films were also experimentally measured in the temperature range from 20 to 85 °C, opening the potential to new bio-thermal sensing applications.

Original languageEnglish
Article number9358
JournalScientific reports
Volume8
Issue number1
DOIs
Publication statusPublished - 2018 Dec 1

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vitamins
riboflavin
deoxyribonucleic acid
surfactants
thin films
refractivity
optical waveguides
ellipsometry
coating
routes
optics
aqueous solutions
optical properties
coefficients

All Science Journal Classification (ASJC) codes

  • General

Cite this

Paulson, B., Shin, I., Jeong, H., Kong, B., Khazaeinezhad, R., Dugasani, S. R., ... Oh, K. (2018). Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping. Scientific reports, 8(1), [9358]. https://doi.org/10.1038/s41598-018-27166-x
Paulson, Bjorn ; Shin, Inchul ; Jeong, Hayoung ; Kong, Byungjoo ; Khazaeinezhad, Reza ; Dugasani, Sreekantha Reddy ; Jung, Woohyun ; Joo, Boram ; Lee, Hoi Youn ; Park, Sungha ; Oh, Kyunghwan. / Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping. In: Scientific reports. 2018 ; Vol. 8, No. 1.
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abstract = "A new route to systematically control the optical dispersion properties of surfactant-free deoxyribonucleic acid (DNA) thin solid films was developed by doping them with vitamin B2, also known as riboflavin. Surfactant-free DNA solid films of high optical quality were successfully deposited on various types of substrates by spin coating of aqueous solutions without additional chemical processes, with thicknesses ranging from 18 to 100 nm. Optical properties of the DNA films were investigated by measuring UV-visible-NIR transmission, and their refractive indices were measured using variable-angle spectroscopic ellipsometry. By doping DNA solid films with riboflavin, the refractive index was consistently increased with an index difference Δn ≥ 0.015 in the spectral range from 500 to 900 nm, which is sufficiently large to make an all-DNA optical waveguide. Detailed correlation between the optical dispersion and riboflavin concentration was experimentally investigated and thermo-optic coefficients of the DNA-riboflavin thin solid films were also experimentally measured in the temperature range from 20 to 85 °C, opening the potential to new bio-thermal sensing applications.",
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Paulson, B, Shin, I, Jeong, H, Kong, B, Khazaeinezhad, R, Dugasani, SR, Jung, W, Joo, B, Lee, HY, Park, S & Oh, K 2018, 'Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping', Scientific reports, vol. 8, no. 1, 9358. https://doi.org/10.1038/s41598-018-27166-x

Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping. / Paulson, Bjorn; Shin, Inchul; Jeong, Hayoung; Kong, Byungjoo; Khazaeinezhad, Reza; Dugasani, Sreekantha Reddy; Jung, Woohyun; Joo, Boram; Lee, Hoi Youn; Park, Sungha; Oh, Kyunghwan.

In: Scientific reports, Vol. 8, No. 1, 9358, 01.12.2018.

Research output: Contribution to journalArticle

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AU - Jung, Woohyun

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Paulson B, Shin I, Jeong H, Kong B, Khazaeinezhad R, Dugasani SR et al. Optical dispersion control in surfactant-free DNA thin films by Vitamin B2 doping. Scientific reports. 2018 Dec 1;8(1). 9358. https://doi.org/10.1038/s41598-018-27166-x