Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties

Shipovskaya, Anna B.; Ushakova, Olga S.; Volchkov, Sergei S.; Shipenok, Xenia M.; Shmakov, Sergei L.; Gegel, Natalia O.; Burov, Andrey M.

doi:10.3390/gels10070427

Open AccessArticle

Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties

by

Anna B. Shipovskaya

¹

,

Olga S. Ushakova

¹

,

Sergei S. Volchkov

^2,3,

Xenia M. Shipenok

¹

,

Sergei L. Shmakov

^1,*

,

Natalia O. Gegel

¹

and

Andrey M. Burov

⁴

¹

Institute of Chemistry, Saratov State University, Saratov 410012, Russia

²

Department of Physics, Yuri Gagarin Saratov State Technical University, Saratov 410054, Russia

³

Saratov Branch, Institute of Radio Engineering and Electronics of Russian Academy of Sciences, 38 Zelyonaya St., Saratov 410019, Russia

⁴

Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences, Saratov 410049, Russia

^*

Author to whom correspondence should be addressed.

Gels 2024, 10(7), 427; https://doi.org/10.3390/gels10070427

Submission received: 27 May 2024 / Revised: 19 June 2024 / Accepted: 24 June 2024 / Published: 28 June 2024

(This article belongs to the Special Issue Advances in Gel Films)

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Abstract

A comprehensive study was performed on the supramolecular ordering and optical properties of thin nanostructured glycerohydrogel sol-gel plates based on chitosan L- and D-aspartate and their individual components in the X-ray, UV, visible, and IR ranges. Our comparative analysis of chiroptical characteristics, optical collimated transmittance, the average cosine of the scattering angle, microrelief and surface asymmetry, and the level of structuring shows a significant influence of the wavelength range of electromagnetic radiation and the enantiomeric form of aspartic acid on the functional characteristics of the sol-gel materials. At the macrolevel of the supramolecular organization, a complex topography of the surface layer and a dense amorphous–crystalline ordering of polymeric substances were revealed, while at the nanolevel, there were two forms of voluminous scattering domains: nanospheres with diameters of 60–120 nm (L-) and 45–55 nm (D-), anisometric particles of lengths within ~100–160 (L-) and ~85–125 nm (D-), and widths within ~10–20 (L-) and ~20–30 nm (D-). The effect of optical clearing on glass coated with a thin layer of chitosan L-(D-)aspartate in the near-UV region was discovered (observed for the first time for chitosan-based materials). The resulting nanocomposite shape-stable glycerohydrogels seem promising for sensorics and photonics.

Keywords: chitosan; glycerohydrogels; sol-gel synthesis; chiroptical properties; collimated transmission; X-ray diffraction; small-angle X-ray scattering; microscopy

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MDPI and ACS Style

Shipovskaya, A.B.; Ushakova, O.S.; Volchkov, S.S.; Shipenok, X.M.; Shmakov, S.L.; Gegel, N.O.; Burov, A.M. Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties. Gels 2024, 10, 427. https://doi.org/10.3390/gels10070427

AMA Style

Shipovskaya AB, Ushakova OS, Volchkov SS, Shipenok XM, Shmakov SL, Gegel NO, Burov AM. Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties. Gels. 2024; 10(7):427. https://doi.org/10.3390/gels10070427

Chicago/Turabian Style

Shipovskaya, Anna B., Olga S. Ushakova, Sergei S. Volchkov, Xenia M. Shipenok, Sergei L. Shmakov, Natalia O. Gegel, and Andrey M. Burov. 2024. "Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties" Gels 10, no. 7: 427. https://doi.org/10.3390/gels10070427

APA Style

Shipovskaya, A. B., Ushakova, O. S., Volchkov, S. S., Shipenok, X. M., Shmakov, S. L., Gegel, N. O., & Burov, A. M. (2024). Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties. Gels, 10(7), 427. https://doi.org/10.3390/gels10070427

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Chiral Nanostructured Glycerohydrogel Sol–Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties

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