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Timralieva A, Moskalenko IV, Nesterov PV, Shilovskikh VV, Novikov AS, Konstantinova EA, Kokorin AI, Skorb EV. Melamine Barbiturate as a Light-Induced Nanostructured Supramolecular Material for a Bioinspired Oxygen and Organic Radical Trap and Stabilization. ACS OMEGA 2023; 8:8276-8284. [PMID: 36910956 PMCID: PMC9996620 DOI: 10.1021/acsomega.2c06510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Use of coantioxidant systems is a prospective way to increase the effectiveness of antioxidant species in tissue repair and regeneration. In this paper, we introduce a novel scheme of a reactive oxygen species (ROS) trap and neutralization during self-assembly of supramolecular melamine barbiturate material. The performed reaction chain mimics the biological process of ROS generation in key stages and enables one to obtain stable hydroperoxyl and organic radicals in a melamine barbiturate structure. Melamine barbiturate also neutralizes hydroxyl radicals, and the effectiveness of the radical trap is controlled with ROS scavenger incorporation. The number of radicals dramatically increases during light-inducing and depends on pH. The proposed scheme of the ROS trap and neutralization opens a way to the use of supramolecular assemblies as a component of coantioxidant systems and a source of organic radicals.
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Affiliation(s)
- Alexandra
A. Timralieva
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
| | - Ivan V. Moskalenko
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
| | - Pavel V. Nesterov
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
| | - Vladimir V. Shilovskikh
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
| | - Alexander S. Novikov
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
| | - Elizaveta A. Konstantinova
- Physics
Department, M. V. Lomonosov Moscow State
University, Leninskie Gory 1/2, Moscow 119991, Russia
- Institute
of Nano-, Bio-, Information, Cognitive and Socio-humanistic Sciences
and Technologies, Moscow Institute of Physics
and Technology, Dolgoprudny 141701 Moscow Region, Russia
| | - Alexander I. Kokorin
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
- N.
N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin st. 4, Moscow 119991, Russia
- Plekhanov
Russian University of Economics, Stremyannyi per. 36, Moscow 115093, Russia
| | - Ekaterina V. Skorb
- Infochemistry
Scientific Center of ITMO University, Lomonosova str. 9, St. Petersburg 191002, Russia
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DFT study on aerial degradation of product radicals derived from the reaction of 1H–Heptafluorocyclopentene (cyc‐CF2CF2CF2CF = CH − ) with OH radical. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Nebalueva AS, Timralieva AA, Sadovnichii RV, Novikov AS, Zhukov MV, Aglikov AS, Muravev AA, Sviridova TV, Boyarskiy VP, Kholkin AL, Skorb EV. Piezo-Responsive Hydrogen-Bonded Frameworks Based on Vanillin-Barbiturate Conjugates. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27175659. [PMID: 36080425 PMCID: PMC9457948 DOI: 10.3390/molecules27175659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022]
Abstract
A concept of piezo-responsive hydrogen-bonded π-π-stacked organic frameworks made from Knoevenagel-condensed vanillin–barbiturate conjugates was proposed. Replacement of the substituent at the ether oxygen atom of the vanillin moiety from methyl (compound 3a) to ethyl (compound 3b) changed the appearance of the products from rigid rods to porous structures according to optical microscopy and scanning electron microscopy (SEM), and led to a decrease in the degree of crystallinity of corresponding powders according to X-ray diffractometry (XRD). Quantum chemical calculations of possible dimer models of vanillin–barbiturate conjugates using density functional theory (DFT) revealed that π-π stacking between aryl rings of the vanillin moiety stabilized the dimer to a greater extent than hydrogen bonding between carbonyl oxygen atoms and amide hydrogen atoms. According to piezoresponse force microscopy (PFM), there was a notable decrease in the vertical piezo-coefficient upon transition from rigid rods of compound 3a to irregular-shaped aggregates of compound 3b (average values of d33 coefficient corresponded to 2.74 ± 0.54 pm/V and 0.57 ± 0.11 pm/V), which is comparable to that of lithium niobate (d33 coefficient was 7 pm/V).
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Affiliation(s)
- Anna S. Nebalueva
- Infochemistry Scientific Center, ITMO University, 191002 St. Petersburg, Russia
| | | | | | | | - Mikhail V. Zhukov
- Infochemistry Scientific Center, ITMO University, 191002 St. Petersburg, Russia
| | | | - Anton A. Muravev
- Infochemistry Scientific Center, ITMO University, 191002 St. Petersburg, Russia
| | | | - Vadim P. Boyarskiy
- Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - Andrei L. Kholkin
- Institute of Natural Sciences and Mathematics, Ural Federal University, 260026 Yekaterinburg, Russia
| | - Ekaterina V. Skorb
- Infochemistry Scientific Center, ITMO University, 191002 St. Petersburg, Russia
- Correspondence:
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Imoro N, Shilovskikh VV, Nesterov PV, Timralieva AA, Gets D, Nebalueva A, Lavrentev FV, Novikov AS, Kondratyuk ND, Orekhov ND, Skorb EV. Biocompatible pH-Degradable Functional Capsules Based on Melamine Cyanurate Self-Assembly. ACS OMEGA 2021; 6:17267-17275. [PMID: 34278113 PMCID: PMC8280711 DOI: 10.1021/acsomega.1c01124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Development of adaptive self-regulating materials and chemical-biological systems-self-healing, self-regulating, etc.-is an advanced modern trend. The very sensitive pH-controlled functionality of supramolecular assemblies is a very useful tool for chemical and biochemical implementations. However, the assembly process can be tuned by various factors that can be used for both better functionality control and further functionalization such as active species, e.g., drugs and dyes, and encapsulation. Here, the effect of a dye, sodium fluorescein (uranine) (FL), on the formation of a self-assembled melamine cyanurate (M-CA) structure is investigated and calculated with density functional theory (DFT) and molecular dynamics. Interestingly, the dye greatly affects the self-assembly process at early stages from the formation of dimers, trimers, and tetramer to nucleation control. The supramolecular structure disassembly and subsequent release of trapped dye occurred under both high- and low-pH conditions. This system can be used for time-prolonged bacterial staining and development of supramolecular capsules for the system chemistry approach.
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Affiliation(s)
- Nfayem Imoro
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | | | - Pavel V. Nesterov
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | | | - Dmitry Gets
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | - Anna Nebalueva
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | - Filipp V. Lavrentev
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
| | | | - Nikolay D. Kondratyuk
- Moscow
Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow Region 141701, Russian Federation
- Joint
Institute for High Temperatures of the Russian Academy of Sciences, 13 Izhorskaya Bd 2, Moscow 125412, Russian Federation
| | - Nikita D. Orekhov
- Moscow
Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow Region 141701, Russian Federation
- Joint
Institute for High Temperatures of the Russian Academy of Sciences, 13 Izhorskaya Bd 2, Moscow 125412, Russian Federation
- Bauman
Moscow State Technical University, 2nd Baumanskaya Str., 5, Moscow 105005, Russia
| | - Ekaterina V. Skorb
- ITMO
University, Lomonosova str. 9, St. Petersburg 191002, Russian Federation
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Encapsulation of Rhodamine 6G Dye Molecules for Affecting Symmetry of Supramolecular Crystals of Melamine-Barbiturate. Symmetry (Basel) 2021. [DOI: 10.3390/sym13071119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Supramolecular organic systems can be used as a host for the encapsulation of small organic molecules. Here, we chose melamine barbiturate as a robust system capable of supramolecular assembly and the Rhodamine 6G dye entrapment as a guest molecule. The encapsulation of the dye was investigated by UV-visible spectroscopy, SEM and optical fluorescent microscopy while the insight into the crystal structure of the system was obtained by single crystal and powder XRD. For investigation of the system’s properties on a molecular level, the DFT and Classical Molecular Dynamics methods were utilized. Surprisingly, both theoretical and experimental data show not only the successful encapsulation of Rhodamine 6G molecules inside the supramolecular assembly, but also that inclusion of such molecules leads to the drastic improvement in the organic crystal shape. The melamine barbiturate in presence of the Rhodamine 6G molecules tend to form crystals with lesser degree of twinning and higher symmetry in shape than the ones without dye molecules.
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