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Nazarova A, Padnya P, Kharlamova A, Petrov K, Yusupov G, Zelenikhin P, Bukharov M, Hua B, Huang F, Stoikov I. Peptidomimetics based on ammonium decasubstituted pillar[5]arenes: Influence of the alpha-amino acid residue nature on cholinesterase inhibition. Bioorg Chem 2023; 141:106927. [PMID: 37866207 DOI: 10.1016/j.bioorg.2023.106927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Cholinesterase inhibitors are a group of medicines that are widely used for the treatment of cognitive impairments accompanying Alzheimer's disease as well as for the treatment of pathological muscle weaknesses syndromes such as myasthenia gravis. The search for novel non-toxic and effective cholinesterase inhibitors for creating neuroprotective and neurotransmitter agents is an urgent interdisciplinary problem. For the first time, the application of water-soluble pillar[5]arenes containing amino acid residues as effective cholinesterase inhibitors was shown. The influence of the nature of aliphatic and aromatic alpha-amino acid residues (glycine, l-alanine, l-phenylalanine and l-tryptophan) on self-assembly, aggregate's stability, cytotoxicity on A549 and LEK cells and cholinesterase inhibition was studied. It was found that the studied compounds with aliphatic amino acid residues showed a low inhibitory ability against cholinesterases. It was established that the pillar[5]arene containing fragments of l-phenylalanine is the most promising inhibitor of butyrylcholinesterase (IC50 = 0.32 ± 0.01 μM), the pillar[5]arene with l-tryptophan residues is the most promising inhibitor of acetylcholinesterase (IC50 = 0.32 ± 0.01 μM). This study has shown a possible application of peptidomimetics based on pillar[5]arenes to inhibit cholinesterase, as well as control the binding affinity to a particular enzyme in a structure-dependent manner.
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Affiliation(s)
- Anastasia Nazarova
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia.
| | - Pavel Padnya
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
| | - Alexandra Kharlamova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., Kazan 420088, Russia
| | - Konstantin Petrov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., Kazan 420088, Russia
| | - George Yusupov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
| | - Pavel Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
| | - Mikhail Bukharov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia
| | - Bin Hua
- Stoddart Institute of Molecular Science, Department of Chemistry Zhejiang University, 310058 Hangzhou, PR China; Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, 311215 Hangzhou, PR China
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry Zhejiang University, 310058 Hangzhou, PR China; Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, 311215 Hangzhou, PR China; Green Catalysis Center and College of Chemistry, Zhengzhou University, 450001 Zhengzhou, PR China
| | - Ivan Stoikov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russia.
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2
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Nazarova A, Padnya P, Khannanov A, Khabibrakhmanova A, Zelenikhin P, Stoikov I. Towards Protection of Nucleic Acids from Herbicide Attack: Self-Assembly of Betaines Based on Pillar[5]arene with Glyphosate and DNA. Int J Mol Sci 2023; 24:ijms24098357. [PMID: 37176066 PMCID: PMC10179701 DOI: 10.3390/ijms24098357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/25/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Herbicides are one of the main parts of pesticides used today. Due to the high efficiency and widespread use of glyphosate-based herbicides, the search for substances reducing their genotoxicity is an important interdisciplinary task. One possible approach for solving the problem of herbicide toxicity is to use compounds that can protect DNA from damage by glyphosate derivatives. For the first time, a method for developing DNA-protecting measures against glyphosate isopropylamine salt (GIS) damage was presented and realized, based on low-toxicity water-soluble pillar[5]arene derivatives. Two- and three-component systems based on pillar[5]arene derivatives, GIS, and model DNA from salmon sperm, as well as their cytotoxicity, were studied. The synthesized pillar[5]arene derivatives do not interact with GIS, while GIS is able to bind DNA from salmon sperm with lgKa = 4.92. The pillar[5]arene betaine derivative containing fragments of L-phenylalanine and the ester derivative with diglycine fragments bind DNA with lgKa = 5.24 and lgKa = 4.88, respectively. The study of the associates (pillar[5]arene-DNA) with GIS showed that the interaction of GIS with DNA is inhibited only by the betaine pillar[5]arene containing fragments of L-Phe (lgKa = 3.60). This study has shown a possible application of betaine pillar[5]arene derivatives for nucleic acid protection according to its competitive binding with biomacromolecules.
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Affiliation(s)
- Anastasia Nazarova
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Pavel Padnya
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Arthur Khannanov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Aleksandra Khabibrakhmanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Pavel Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Ivan Stoikov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
- Federal Center for Toxicological, Radiation, and Biological Safety, Nauchny Gorodok-2, 420075 Kazan, Russia
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Sultanaev V, Yakimova L, Nazarova A, Mostovaya O, Sedov I, Davletshin D, Gilyazova E, Bulatov E, Li ZT, Zhang DW, Stoikov I. Decasubstituted Pillar[5]arene Derivatives Containing L-Tryptophan and L-Phenylalanine Residues: Non-Covalent Binding and Release of Fluorescein from Nanoparticles. Int J Mol Sci 2023; 24:ijms24097700. [PMID: 37175406 PMCID: PMC10178471 DOI: 10.3390/ijms24097700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Sensitive systems with controlled release of drugs or diagnostic markers are attractive for solving the problems of biomedicine and antitumor therapy. In this study, new decasubstituted pillar[5]arene derivatives containing L-Tryptophan and L-Phenylalanine residues have been synthesized as pH-responsive drug nanocarriers. Fluorescein dye (Fluo) was loaded into the pillar[5]arene associates and used as a spectroscopic probe to evaluate the release in buffered solutions with pH 4.5, 7.4, and 9.2. The nature of the substituents in the pillar[5]arene structure has a huge influence on the rate of delivering. When the dye was loaded into the associates based on pillar[5]arene derivatives containing L-Tryptophan, the Fluo release occurs in the neutral (pH = 7.4) and alkaline (pH = 9.2) buffered solutions. When the dye was loaded into the associates based on pillar[5]arene with L-Phenylalanine fragments, the absence of release was observed in every pH evaluated. This happens as the result of different packing of the dye in the structure of the associate. This fact was confirmed by different fluorescence mechanisms (aggregation-caused quenching and aggregation-induced emission) and association constants. It was shown that the macrocycle with L-Phenylalanine fragments binds the dye more efficiently (lgKa = 3.92). The experimental results indicate that the pillar[5]arene derivatives with amino acids fragments have a high potential to be used as a pH-responsive drug delivery devices, especially for promoting the intracellular delivering, due to its nanometric size.
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Affiliation(s)
- Vildan Sultanaev
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Luidmila Yakimova
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Anastasia Nazarova
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Olga Mostovaya
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Igor Sedov
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Damir Davletshin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Elvina Gilyazova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Emil Bulatov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
| | - Zhang-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Ivan Stoikov
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia
- Federal State Budgetary Scientific Institution «Federal Center for Toxicological, Radiation, and Biological Safety», Nauchny Gorodok, 2, 420075 Kazan, Russia
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Huang Y, Yang Y, Liang B, Lu S, Yuan X, Jia Z, Liu J, Liu Y. Green Nanopesticide: pH-Responsive Eco-Friendly Pillar[5]arene-Modified Selenium Nanoparticles for Smart Delivery of Carbendazim to Suppress Sclerotinia Diseases. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16448-16459. [PMID: 36943808 DOI: 10.1021/acsami.2c23241] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Controlled-release delivery systems have been widely used to improve the efficacy and bioavailability of pesticides and minimize environmental risks. Herein, a fungicide carbendazim (CBZ)-loaded, a kind of nanovalve including trimethylammoniumpillar[5]arene (AP5), and methyl orange (MO)-functionalized mesoporous selenium (MSe) nanopesticides (CBZ@AP5/MSe⊃MO) were prepared. The nanovalve endowed CBZ@AP5/MSe⊃MO with a pH-responsive property, so the CBZ@AP5/MSe⊃MO can respond to the microenvironment of the pathogen Sclerotinia sclerotiorum (S. sclerotiorum). First, MO was shed due to protonation, and AP5-functionalized MSe gradually dissolved in an acid environment. Finally, CBZ was released rapidly. It is reported that AP5 and MO as the host and guest functionalized mesoporous selenium (MSe) have never been applied to agriculture. In vitro release experiments showed that the cumulative release rate of CBZ at pH 4.5 was 1.74 times higher than that in a neutral environment. In addition, we found that the contact angle of the CBZ@AP5/MSe⊃MO in maize and rape leaves was effectively decreased, which could retain more in the leaves after washout. It can also decrease the dry biomass and the reducing sugar of S.sclerotiorum. The CBZ@AP5/MSe⊃MO holds a good safety profile for plants, animal cells, and the environment owing to the targeted release properties. These results suggest that CBZ@AP5/MSe⊃MO is an environmentally friendly and effective drug-loaded system against S. sclerotiorum. It provides a new strategy for the design and development of nanopesticides and the control of S. sclerotiorum.
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Affiliation(s)
- Yuqin Huang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Yonglan Yang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Bin Liang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Shuhao Lu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Xiaoyu Yuan
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Zhi Jia
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Jie Liu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
| | - Yanan Liu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511436, China
- Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen 518110, China
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5
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Macrocyclic Ionic Liquids with Amino Acid Residues: Synthesis and Influence of Thiacalix[4]arene Conformation on Thermal Stability. Molecules 2022; 27:molecules27228006. [PMID: 36432113 PMCID: PMC9698724 DOI: 10.3390/molecules27228006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/19/2022] Open
Abstract
Novel thiacalix[4]arene based ammonium ionic liquids (ILs) containing amino acid residues (glycine and L-phenylalanine) in cone, partial cone, and 1,3-alternate conformations were synthesized by alkylation of macrocyclic tertiary amines with N-bromoacetyl-amino acids ethyl ester followed by replacing bromide anions with bis(trifluoromethylsulfonyl)imide ions. The melting temperature of the obtained ILs was found in the range of 50−75 °C. The effect of macrocyclic core conformation on the synthesized ILs’ melting points was shown, i.e., the ILs in partial cone conformation have the lowest melting points. Thermal stability of the obtained macrocyclic ILs was determined via thermogravimetry and differential scanning calorimetry. The onset of decomposition of the synthesized compounds was established at 305−327 °C. The compounds with L-phenylalanine residues are less thermally stable by 3−19 °C than the same glycine-containing derivatives.
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6
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Nazarova A, Yakimova L, Mostovaya O, Kulikova T, Mikhailova O, Evtugyn G, Ganeeva I, Bulatov E, Stoikov I. Encapsulation of the quercetin with interpolyelectrolyte complex based on pillar[5]arenes. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Zhao Q, Bian X, Shan C, Cheng J, Wang C, Xu Y, Xu M, Yan H, Qian D, Duan J. Quantitative analysis of nutrients for nucleosides, nucleobases and amino acids hidden behind five distinct regions-derived Poria cocos using ultra-performance liquid chromatography coupled with triple-quadrupole linear ion-trap tandem mass spectrometry. J Sep Sci 2022; 45:4039-4051. [PMID: 36084259 DOI: 10.1002/jssc.202200516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/09/2022]
Abstract
Poria cocos is an edible fungus used as a health product and traditional Chinese medicinal preparation. Nevertheless, little is known about its nutrients. In this study, ultra-high performance liquid chromatography coupled with triple-quadrupole linear ion-trap tandem mass spectrometry was conducted to quantify nucleosides, nucleobases, and amino acids in 32 batches of Poria cocos samples collected from Anhui, Sichuan, Hubei, Hunan and Guizhou. Subsequently, the linearity, precision, repeatability, stability, and recovery of our methods were validated. Samples from different regions were clearly separated by partial least squares discriminant analysis and cluster analysis. Our results suggested that Poria cocos samples from different geographical environments differed in nucleosides, nucleobases, and amino acids. The plot of variable importance for projection disclosed differential compositions of L-Leucine, Uridine, L-Asparagine, L-Glutamine, L-phenylalanine, L-Ornithine monohydrochloride, L-Hydroxyproline, Taurine and Inosine in Poria cocos from five regions. We found the highest content of total analytes, total amino acids and total non-essential amino acids in Poria cocos from Anhui, total essential amino acids in the Sichuan samples and total nucleosides in Hunan samples. Overall, we determined the content of Poria cocos-derived nucleosides, nucleobases, and amino acids, providing the foothold for further chemical mining and use of Poria cocos. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Qiulong Zhao
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing, 210023, China.,Jiangsu Collaborative Innovation Center of Chinese Medicinal Resource Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xiaokun Bian
- Yancheng NO.1 People's Hospital, Yancheng, 224000, China
| | - Chenxiao Shan
- Institute of TCM-Related Comorbid Depression, Nanjing, 210023, China
| | - Jiaxin Cheng
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing, 210023, China
| | - Chunxue Wang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing, 210023, China
| | - Yi Xu
- Yancheng NO.1 People's Hospital, Yancheng, 224000, China
| | - Min Xu
- Institute of TCM-Related Comorbid Depression, Nanjing, 210023, China
| | - Hui Yan
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing, 210023, China
| | - Dawei Qian
- Yancheng NO.1 People's Hospital, Yancheng, 224000, China
| | - Jinao Duan
- Yancheng NO.1 People's Hospital, Yancheng, 224000, China
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Nazarova A, Yakimova L, Filimonova D, Stoikov I. Surfactant Effect on the Physicochemical Characteristics of Solid Lipid Nanoparticles Based on Pillar[5]arenes. Int J Mol Sci 2022; 23:779. [PMID: 35054962 PMCID: PMC8775580 DOI: 10.3390/ijms23020779] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 12/05/2022] Open
Abstract
Novel monosubstituted pillar[5]arenes containing both amide and carboxyl functional groups were synthesized. Solid lipid nanoparticles based on the synthesized macrocycles were obtained. Formation of spherical particles with an average hydrodynamic diameter of 250 nm was shown for pillar[5]arenes containing N-(amidoalkyl)amide fragments regardless of their concentration. It was established that pillar[5]arene containing N-alkylamide fragments can form spherical particles with two different sizes (88 and 223 nm) depending on its concentration. Mixed solid lipid nanoparticles based on monosubstituted pillar[5]arenes and surfactant (dodecyltrimethylammonium chloride) were obtained for the first time. The surfactant made it possible to level the effect of the macrocycle concentration. It was found that various types of aggregates are formed depending on the macrocycle/surfactant ratio. Changing the macrocycle/surfactant ratio allows to control the charge of the particles surface. This controlled property will lead to the creation of molecular-scale porous materials that selectively interact with various types of substrates, including biopolymers.
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Affiliation(s)
- Anastasia Nazarova
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia;
| | - Luidmila Yakimova
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia;
| | | | - Ivan Stoikov
- A.M. Butlerov Chemistry Institute, Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia;
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Nazarova A, Padnya P, Cragg PJ, Stoikov I. [1]Rotaxanes based on phosphorylated pillar[5]arenes. NEW J CHEM 2022. [DOI: 10.1039/d1nj05461a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[1]Rotaxanes based on monosubstituted phosphorus-containing pillar[5]arenes have been synthesized by the Kabachnik–Fields reaction for the first time in good yields.
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Affiliation(s)
- Anastasia Nazarova
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya, 18, Kazan 420008, Russian Federation
| | - Pavel Padnya
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya, 18, Kazan 420008, Russian Federation
| | - Peter J. Cragg
- School of Applied Sciences, University of Brighton, Brighton BN2 4GJ, UK
| | - Ivan Stoikov
- A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya, 18, Kazan 420008, Russian Federation
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Nazarova A, Khannanov A, Boldyrev A, Yakimova L, Stoikov I. Self-Assembling Systems Based on Pillar[5]arenes and Surfactants for Encapsulation of Diagnostic Dye DAPI. Int J Mol Sci 2021; 22:6038. [PMID: 34204914 PMCID: PMC8199762 DOI: 10.3390/ijms22116038] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 12/12/2022] Open
Abstract
In this paper, we report the development of the novel self-assembling systems based on oppositely charged Pillar[5]arenes and surfactants for encapsulation of diagnostic dye DAPI. For this purpose, the aggregation behavior of synthesized macrocycles and surfactants in the presence of Pillar[5]arenes functionalized by carboxy and ammonium terminal groups was studied. It has been demonstrated that by varying the molar ratio in Pillar[5]arene-surfactant systems, it is possible to obtain various types of supramolecular systems: host-guest complexes at equimolar ratio of Pillar[5]arene-surfactant and interpolyelectrolyte complexes (IPECs) are self-assembled materials formed in aqueous medium by two oppositely charged polyelectrolytes (macrocycle and surfactant micelles). It has been suggested that interaction of Pillar[5]arenes with surfactants is predominantly driven by cooperative electrostatic interactions. Synthesized stoichiometric and non-stoichiometric IPECs specifically interact with DAPI. UV-vis, luminescent spectroscopy and molecular docking data show the structural feature of dye-loaded IPEC and key role of the electrostatic, π-π-stacking, cation-π interactions in their formation. Such a strategy for the design of supramolecular Pillar[5]arene-surfactant systems will lead to a synergistic interaction of the two components and will allow specific interaction with the third component (drug or fluorescent tag), which will certainly be in demand in pharmaceuticals and biomedical diagnostics.
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Affiliation(s)
| | | | | | - Luidmila Yakimova
- A.M. Butlerov’ Chemistry Institute of Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia; (A.N.); (A.K.); (A.B.)
| | - Ivan Stoikov
- A.M. Butlerov’ Chemistry Institute of Kazan Federal University, 18 Kremlyovskaya Str., 420008 Kazan, Russia; (A.N.); (A.K.); (A.B.)
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Catechol-Containing Schiff Bases on Thiacalixarene: Synthesis, Copper (II) Recognition, and Formation of Organic-Inorganic Copper-Based Materials. Molecules 2021; 26:molecules26082334. [PMID: 33920537 PMCID: PMC8072794 DOI: 10.3390/molecules26082334] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/28/2022] Open
Abstract
For the first time, a series of catechol-containing Schiff bases, tetrasubstituted at the lower rim thiacalix[4]arene derivatives in three stereoisomeric forms, cone, partial cone, and 1,3-alternate, were synthesized. The structure of the obtained compounds was proved by modern physical methods, such as NMR, IR spectroscopy, and HRMS. Selective recognition (Kb difference by three orders of magnitude) of copper (II) cation in the series of d-metal cations (Cu2+, Ni2+, Co2+, Zn2+) was shown by UV-vis spectroscopy. Copper (II) ions are coordinated at the nitrogen atom of the imine group and the nearest oxygen atom of the catechol fragment in the thiacalixarene derivatives. High thermal stable organic-inorganic copper-based materials were obtained on the base of 1,3-alternate + Cu (II) complexes.
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12
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Kashapov R, Zakharova L. The Self-Assembly and Design of Polyfunctional Nanosystems. Int J Mol Sci 2021; 22:ijms22042223. [PMID: 33672369 PMCID: PMC7926804 DOI: 10.3390/ijms22042223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 02/19/2021] [Indexed: 11/16/2022] Open
Abstract
The current task of the molecular sciences is to create unique nanostructured materials with a given structure and with specific physicochemical properties on the basis of the existing wide range of molecules of natural and synthetic origin. A promising and inexpensive way to obtain nanostructured materials is the spontaneous self-assembly of molecular building blocks during random collisions in real dispersive systems in solution and at interfaces. This editorial aims to summarize the major points from the 11 scientific papers that contributed to the special issue “The Self-Assembly and Design of Polyfunctional Nanosystems”, assessing the modern self-assembly potential and strategies for maintaining sustainable development of the nanoindustry.
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Affiliation(s)
- Ruslan Kashapov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Street, Kazan 420088, Russia
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan National Research Technological University, 68 Karl Marx Street, Kazan 420015, Russia
- Correspondence: (R.K.); (L.Z.); Tel.: +7-(843)-273-22-93 (R.K.); Fax: +7-(843)-273-22-53 (R.K.)
| | - Lucia Zakharova
- A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Street, Kazan 420088, Russia
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan National Research Technological University, 68 Karl Marx Street, Kazan 420015, Russia
- Correspondence: (R.K.); (L.Z.); Tel.: +7-(843)-273-22-93 (R.K.); Fax: +7-(843)-273-22-53 (R.K.)
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