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Mayorova OA, Saveleva MS, Bratashov DN, Prikhozhdenko ES. Combination of Machine Learning and Raman Spectroscopy for Determination of the Complex of Whey Protein Isolate with Hyaluronic Acid. Polymers (Basel) 2024; 16:666. [PMID: 38475349 DOI: 10.3390/polym16050666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Macromolecules and their complexes remain interesting topics in various fields, such as targeted drug delivery and tissue regeneration. The complex chemical structure of such substances can be studied with a combination of Raman spectroscopy and machine learning. The complex of whey protein isolate (WPI) and hyaluronic acid (HA) is beneficial in terms of drug delivery. It provides HA properties with the stability obtained from WPI. However, differences between WPI-HA and WPI solutions can be difficult to detect by Raman spectroscopy. Especially when the low HA (0.1, 0.25, 0.5% w/v) and the constant WPI (5% w/v) concentrations are used. Before applying the machine learning techniques, all the collected data were divided into training and test sets in a ratio of 3:1. The performances of two ensemble methods, random forest (RF) and gradient boosting (GB), were evaluated on the Raman data, depending on the type of problem (regression or classification). The impact of noise reduction using principal component analysis (PCA) on the performance of the two machine learning methods was assessed. This procedure allowed us to reduce the number of features while retaining 95% of the explained variance in the data. Another application of these machine learning methods was to identify the WPI Raman bands that changed the most with the addition of HA. Both the RF and GB could provide feature importance data that could be plotted in conjunction with the actual Raman spectra of the samples. The results show that the addition of HA to WPI led to changes mainly around 1003 cm-1 (correspond to ring breath of phenylalanine) and 1400 cm-1, as demonstrated by the regression and classification models. For selected Raman bands, where the feature importance was greater than 1%, a direct evaluation of the effect of the amount of HA on the Raman intensities was performed but was found not to be informative. Thus, applying the RF or GB estimators to the Raman data with feature importance evaluation could detect and highlight small differences in the spectra of substances that arose from changes in the chemical structure; using PCA to filter out noise in the Raman data could improve the performance of both the RF and GB. The demonstrated results will make it possible to analyze changes in chemical bonds during various processes, for example, conjugation, to study complex mixtures of substances, even with small additions of the components of interest.
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Affiliation(s)
- Oksana A Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Mariia S Saveleva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Daniil N Bratashov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
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Saveleva MS, Lobanov ME, Gusliakova OI, Plastun VO, Prikhozhdenko ES, Sindeeva OA, Gorin DA, Mayorova OA. Mucoadhesive Emulsion Microgels for Intravesical Drug Delivery: Preparation, Retention at Urothelium, and Biodistribution Study. ACS Appl Mater Interfaces 2023. [PMID: 37204221 DOI: 10.1021/acsami.3c02741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The intravesical instillation procedure is a proven method in modern urology for the treatment of bladder diseases. However, the low therapeutic efficiency and painfulness of the instillation procedure are significant limitations of this method. In the present study, we propose an approach to solving this problem by using microsized mucoadhesive macromolecular carriers based on whey protein isolate with the possibility of prolonged release of drugs as a drug delivery system. The optimal water-to-oil ratio (1:3) and whey protein isolate concentration (5%) were determined to obtain emulsion microgels with sufficient loading efficiency and mucoadhesive properties. The droplet diameter of emulsion microgels varies from 2.2 to 3.8 μm. The drug release kinetics from the emulsion microgels was evaluated. The release of the model dye in saline and artificial urine in vitro was observed for 96 h and reached up to 70% of loaded cargo for samples. The effect of emulsion microgels on the morphology and viability of two cell lines was observed: L929 mouse fibroblasts (normal adherent cells) and THP-1 human monocytes (cancer suspension cells). Developed emulsion microgels (5%, 1:3 and 1:5) showed sufficient mucoadhesion to a porcine bladder urothelium ex vivo. The biodistribution of emulsion microgels (5%, 1:3 and 1:5) in mice (n = 3) after intravesical (instillation) and systemic (intravenous) administration was assessed in vivo and ex vivo using near-infrared fluorescence live imaging for real time. It was demonstrated that intravesical instillation allows approximately 10 times more efficient accumulation of emulsion microgels in the mice urinary bladder in vivo 1 h after injection compared to systemic injection. The retention of the emulsion of mucoadhesive microgels in bladders after the intravesical instillation was observed for 24 h.
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Affiliation(s)
- Mariia S Saveleva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
| | - Mikhail E Lobanov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
| | - Olga I Gusliakova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
| | - Valentina O Plastun
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
| | | | - Olga A Sindeeva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Moscow 121205, Russia
| | - Dmitry A Gorin
- Center of Photonic Science and Engineering, Skolkovo Institute of Science and Technology, 3 Nobel Str., Moscow 143005, Russia
| | - Oksana A Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
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Mayorova OA, Gusliakova OI, Prikhozhdenko ES, Verkhovskii RA, Bratashov DN. Magnetic Platelets as a Platform for Drug Delivery and Cell Trapping. Pharmaceutics 2023; 15:pharmaceutics15010214. [PMID: 36678843 PMCID: PMC9866132 DOI: 10.3390/pharmaceutics15010214] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/23/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
The possibility of using magnetically labeled blood cells as carriers is a novel approach in targeted drug-delivery systems, potentially allowing for improved bloodstream delivery strategies. Blood cells already meet the requirements of biocompatibility, safety from clotting and blockage of small vessels. It would solve the important problem of the patient's immune response to embedded foreign carriers. The high efficiency of platelet loading makes them promising research objects for the development of personalized drug-delivery systems. We are developing a new approach to use platelets decorated with magnetic nanoparticles as a targeted drug-delivery system, with a focus on bloodstream delivery. Platelets are non-nuclear blood cells and are of great importance in the pathogenesis of blood-clotting disorders. In addition, platelets are able to attach to circulating tumor cells. In this article, we studied the effect of platelets labeled with BSA-modified magnetic nanoparticles on healthy and cancer cells. This opens up broad prospects for future research based on the delivery of specific active substances by this method.
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Affiliation(s)
- Oksana A. Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
- Department of General Educations, Saratov State Vavilov Agrarian University, 1 Theater Square, 410012 Saratov, Russia
- Correspondence: (O.A.M.); (D.N.B.)
| | - Olga I. Gusliakova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | | | - Roman A. Verkhovskii
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Daniil N. Bratashov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
- Correspondence: (O.A.M.); (D.N.B.)
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Sapach AY, Sindeeva OA, Nesterchuk MV, Tsitrina AA, Mayorova OA, Prikhozhdenko ES, Verkhovskii RA, Mikaelyan AS, Kotelevtsev YV, Sukhorukov GB. Macrophage In Vitro and In Vivo Tracking via Anchored Microcapsules. ACS Appl Mater Interfaces 2022; 14:51579-51592. [PMID: 36367877 DOI: 10.1021/acsami.2c12004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A new promising trend in personalized medicine is the use of autologous cells (macrophages or stem cells) for cell-based therapy and also as a "Trojan horse" for targeted delivery of a drug carrier. The natural ability of macrophages for chemotaxis allows them to deliver cargo to the damaged area, significantly reducing side effects on healthy organ tissues. Therefore, it is important to develop tools to track their behavior in the organism. While labeled containers can serve as anchored tags for imaging macrophages in vivo, they can affect the properties and functions of macrophages. This work demonstrates that 3 μm sized capsules based on biocompatible polyelectrolytes and fluorescently labeled with both Cy7 and RITC dyes do not affect cell functionalization in vitro, such as viability, proliferation, and movement of transformed monocyte/macrophage-like cells (RAW 264.7) and primary bone marrow derived macrophages (BMDM) at maximal loading of five capsules per cell. In addition, capsules allowed fluorescent detection of ex vivo loaded cells 24 h after the tail vein injection in vivo and visualization of microcapsule-laden macrophages ex vivo using confocal microscopy. We have delivered about 62.5% of injected BMDM containing 12.5 million capsules with 3.75 μg of high-molecular-weight cargo (0.3 pg/capsule) to the liver. Our results demonstrate that 3 μm polyelectrolyte fluorescently labeled microcapsules can be used for safe macrophage loading, allowing cell tracking and drug delivery, which will facilitate development of macrophage-based cell therapy protocols.
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Affiliation(s)
- Anastasiia Yu Sapach
- Skolkovo Institute of Science and Technology, Moscow 143005, Russia
- Sechenov First State Medical University, Moscow 119991, Russia
| | - Olga A Sindeeva
- Skolkovo Institute of Science and Technology, Moscow 143005, Russia
| | | | - Alexandra A Tsitrina
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Moscow 119334, Russia
| | | | | | | | - Arsen S Mikaelyan
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Moscow 119334, Russia
| | | | - Gleb B Sukhorukov
- Skolkovo Institute of Science and Technology, Moscow 143005, Russia
- Siberian State Medical University, Tomsk 634050, Russia
- Queen Mary University of London, London E1 4NS, U.K
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Gusliakova OI, Prikhozhdenko ES, Plastun VO, Mayorova OA, Shushunova NA, Abdurashitov AS, Kulikov OA, Abakumov MA, Gorin DA, Sukhorukov GB, Sindeeva OA. Renal Artery Catheterization for Microcapsules' Targeted Delivery to the Mouse Kidney. Pharmaceutics 2022; 14:1056. [PMID: 35631642 PMCID: PMC9144148 DOI: 10.3390/pharmaceutics14051056] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/07/2022] [Accepted: 05/12/2022] [Indexed: 02/04/2023] Open
Abstract
The problem of reducing the side effects associated with drug distribution throughout the body in the treatment of various kidney diseases can be solved by effective targeted drug delivery. The method described herein involves injection of a drug encapsulated in polyelectrolyte capsules to achieve prolonged local release and long-term capillary retention of several hours while these capsules are administered via the renal artery. The proposed method does not imply disruption (puncture) of the renal artery or aorta and is suitable for long-term chronic experiments on mice. In this study, we compared how capsule size and dosage affect the target kidney blood flow. It has been established that an increase in the diameter of microcapsules by 29% (from 3.1 to 4.0 μm) requires a decrease in their concentration by at least 50% with the same suspension volume. The photoacoustic method, along with laser speckle contrast imaging, was shown to be useful for monitoring blood flow and selecting a safe dose. Capsules contribute to a longer retention of a macromolecular substance in the target kidney compared to its free form due to mechanical retention in capillaries and slow impregnation into surrounding tissues during the first 1-3 h, which was shown by fluorescence tomography and microscopy. At the same time, the ability of capillaries to perform almost complete "self-cleaning" from capsular shells during the first 12 h leads to the preservation of organ tissues in a normal state. The proposed strategy, which combines endovascular surgery and the injection of polymer microcapsules containing the active substance, can be successfully used to treat a wide range of nephropathies.
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Affiliation(s)
- Olga I. Gusliakova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
| | - Ekaterina S. Prikhozhdenko
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
| | - Valentina O. Plastun
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
| | - Oksana A. Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
| | - Natalia A. Shushunova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
| | - Arkady S. Abdurashitov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (G.B.S.)
| | - Oleg A. Kulikov
- Institute of Medicine, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Str., 430005 Saransk, Russia;
| | - Maxim A. Abakumov
- Department of Medical Nanobiotecnology, Pirogov Russian National Research Medical University, 1 Ostrovityanova Str., 117997 Moscow, Russia;
| | - Dmitry A. Gorin
- Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia;
| | - Gleb B. Sukhorukov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (G.B.S.)
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Olga A. Sindeeva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (V.O.P.); (O.A.M.); (N.A.S.)
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (G.B.S.)
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Donskov SI, Bulanov AY, Simarova IB, Belyakova VV, Mayorova OA, Kravtsova EA, Vakulchik IO, Yurkevich TY, Beluga MV, Zubareva LM, Mikhailova NM, Vasiliev NI, Davydova LE, Burdinskaya YV, Kryukovskiy SB. AB0 and rhesus blood groups as a risk factor for ARVI COVID-19. Klin Lab Diagn 2021; 66:661-665. [PMID: 34882350 DOI: 10.51620/0869-2084-2021-66-11-661-665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The frequency of AB0 and Rhesus blood groups was studied in 12120 patients with COVID-19, 5180 convalescent plasma donors and 118801 healthy donors from Moscow, Smolensk, Yakutsk, Minsk and Gomel. In infected individuals, the frequency of blood group A was significantly higher than in uninfected individuals (41,54 % and 34,39 % respectively, p<0,05), and the frequency of blood group 0, on the contrary, was significantly lower (27,69 % and 36,71 %, p<0,05). The frequency of blood group A was particularly high among patients who died from ARVI COVID-19 - 45,51 % vs. 34,39 %, p=0,008. In some groups of patients, there was a decrease in the frequency of Rh-negative individuals (2,23 % vs. 8,30 %, p<0,001).
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Affiliation(s)
- Sergey Ivanovich Donskov
- FDPO GBOU VO «Moscow State University of Medicine and Dentistry. A.I. Evdokimov» Ministry of Health of Russia
| | - A Yu Bulanov
- City Clinical Hospital No. 52 of the Moscow Department of Health
| | - I B Simarova
- City Clinical Hospital No. 52 of the Moscow Department of Health
| | | | | | - E A Kravtsova
- Gomel city polyclinic No. 1.,Gomel city clinical hospital No. 2
| | | | - T Yu Yurkevich
- State Institution Republican Scientific and Practical Center «Mother and Child»
| | - M V Beluga
- State Institution Republican Scientific and Practical Center «Mother and Child»
| | | | | | | | | | | | - S B Kryukovskiy
- FGBOU VO Smolensk State Medical University, Ministry of Health of Russia
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Linkova EI, Grinev VS, Mayorova OA, Yegorova AY. The study of the reaction paths of 4-aryl-4-oxobutanoic acids with terminal aliphatic N,N-diamines. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Abdurashitov AS, Prikhozhdenko ES, Mayorova OA, Plastun VO, Gusliakova OI, Shushunova NA, Kulikov OA, Tuchin VV, Sukhorukov GB, Sindeeva OA. Optical coherence microangiography of the mouse kidney for diagnosis of circulatory disorders. Biomed Opt Express 2021; 12:4467-4477. [PMID: 34457426 PMCID: PMC8367229 DOI: 10.1364/boe.430393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/17/2021] [Accepted: 06/20/2021] [Indexed: 05/02/2023]
Abstract
Optical coherence tomography (OCT) has become widespread in clinical applications in which precise three-dimensional functional imaging of living organs is required. Nevertheless, the kidney is inaccessible for the high resolution OCT imaging due to a high light attenuation coefficient of skin and soft tissues that significantly limits the penetration depth of the probing laser beam. Here, we introduce a surgical protocol and fixation scheme that enables functional visualization of kidney's peritubular capillaries via OCT microangiography. The model of reversible/irreversible glomerulus embolization using drug microcarriers confirms the ability of OCT to detect circulatory disorders. This approach can be used for choosing optimal carriers, their dosages and diagnosis of other blood flow pathologies.
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Affiliation(s)
- Arkady S Abdurashitov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia
| | | | - Oksana A Mayorova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Valentina O Plastun
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Olga I Gusliakova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Natalia A Shushunova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Oleg A Kulikov
- Ogarev Mordovia State University, 68 Bolshevistskaya str., Saransk 430005, Russia
| | - Valery V Tuchin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
- Interdisciplinary Laboratory of Biophotonics, National Research Tomsk State University, 36 Lenina Avenue, Tomsk 634050, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control of the Russian Academy of Science, 24 Rabochaya Str., Saratov 410028, Russia
| | - Gleb B Sukhorukov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia
- School of Engineering and Materials Science, Queen Mary University of London, Mile End, Eng, 215, London E1 4NS, United Kingdom
| | - Olga A Sindeeva
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia
- Science Medical Center, Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
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Grinev VS, Mayorova OA, Anis’kova TV, Tikhomolova AS, Yegorova AY. Structure, Z' = 2 Crystal Packing Features of 3-(2-Chlorobenzylidene)-5-( p-tolyl)furan-2(3 H)-one. Molecules 2021; 26:2137. [PMID: 33917731 PMCID: PMC8068103 DOI: 10.3390/molecules26082137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/03/2021] [Accepted: 04/06/2021] [Indexed: 11/23/2022] Open
Abstract
3-(2-Chlorobenzylidene)-5-(p-tolyl)furan-2(3H)-one (1), C18H13ClO2, crystallizes with Z = 8 and Z' = 2, and the structure at 100 K has orthorhombic (Pna21) symmetry. Each kind of molecule takes part in π-π stacking interactions to form infinite chains parallel to the c axis. We believe that the existence of two forms can be explained by the probable rotation around a single C-C bond. The quantum chemical modeling reveals that these molecules are almost equivalent energetically, and they can be described as the two most stable conformers (rotamers) with a minor rotational barrier of about 0.67 kcal/mol.
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Affiliation(s)
- Vyacheslav S. Grinev
- Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, Prospekt Entuziastov 13, 410049 Saratov, Russia;
- Institute of Chemistry, N.G. Chernyshevsky Saratov National Research State University, Ulitsa Astrakhanskaya 83, 410012 Saratov, Russia; (T.V.A.); (A.S.T.); (A.Y.Y.)
| | - Oksana A. Mayorova
- Institute of Biochemistry and Physiology of Plants and Microorganisms RAS, Prospekt Entuziastov 13, 410049 Saratov, Russia;
| | - Tatyana V. Anis’kova
- Institute of Chemistry, N.G. Chernyshevsky Saratov National Research State University, Ulitsa Astrakhanskaya 83, 410012 Saratov, Russia; (T.V.A.); (A.S.T.); (A.Y.Y.)
| | - Alexandra S. Tikhomolova
- Institute of Chemistry, N.G. Chernyshevsky Saratov National Research State University, Ulitsa Astrakhanskaya 83, 410012 Saratov, Russia; (T.V.A.); (A.S.T.); (A.Y.Y.)
| | - Alevtina Yu. Yegorova
- Institute of Chemistry, N.G. Chernyshevsky Saratov National Research State University, Ulitsa Astrakhanskaya 83, 410012 Saratov, Russia; (T.V.A.); (A.S.T.); (A.Y.Y.)
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Mayorova OA, Jolly BCN, Verkhovskii RA, Plastun VO, Sindeeva OA, Douglas TEL. pH-Sensitive Dairy-Derived Hydrogels with a Prolonged Drug Release Profile for Cancer Treatment. Materials (Basel) 2021; 14:749. [PMID: 33562870 PMCID: PMC7915325 DOI: 10.3390/ma14040749] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 02/02/2023]
Abstract
A novel versatile biocompatible hydrogel of whey protein isolate (WPI) and two types of tannic acid (TAs) was prepared by crosslinking of WPI with TAs in a one-step method at high temperature for 30 min. WPI is one common protein-based preparation which is used for hydrogel formation. The obtained WPI-TA hydrogels were in disc form and retained their integrity after sterilization by autoclaving. Two TA preparations of differing molecular weight and chemical structure were compared, namely a polygalloyl glucose-rich extract-ALSOK 02-and a polygalloyl quinic acid-rich extract-ALSOK 04. Hydrogel formation was observed for WPI solutions containing both preparations. The swelling characteristics of hydrogels were investigated at room temperature at different pH values, namely 5, 7, and 9. The swelling ability of hydrogels was independent of the chemical structure of the added TAs. A trend of decrease of mass increase (MI) in hydrogels was observed with an increase in the TA/WPI ratio compared to the control WPI hydrogel without TA. This dependence (a MI decrease-TA/WPI ratio) was observed for hydrogels with different types of TA both in neutral and acidic conditions (pH 5.7). Under alkaline conditions (pH 9), negative values of swelling were observed for all hydrogels with a high content of TAs and were accompanied by a significant release of TAs from the hydrogel network. Our studies have shown that the release of TA from hydrogels containing ALSOK04 is higher than from hydrogels containing ALSOK 02. Moreover, the addition of TAs, which display a strong anti-cancer effect, increases the cytotoxicity of WPI-TAs hydrogels against the Hep-2 human laryngeal squamous carcinoma (Hep-2 cells) cell line. Thus, WPI-TA hydrogels with prolonged drug release properties and cytotoxicity effect can be used as anti-cancer scaffolds.
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Affiliation(s)
- Oksana A. Mayorova
- Institute of Nanostructures and Biosystems, Saratov State University, 83 Astrakhanskaya st., 410012 Saratov, Russia; (R.A.V.); (V.O.P.); (O.A.S.)
| | - Ben C. N. Jolly
- Engineering Department, Lancaster University, Gillow Av., Lancaster LA1 4YW, UK;
| | - Roman A. Verkhovskii
- Institute of Nanostructures and Biosystems, Saratov State University, 83 Astrakhanskaya st., 410012 Saratov, Russia; (R.A.V.); (V.O.P.); (O.A.S.)
| | - Valentina O. Plastun
- Institute of Nanostructures and Biosystems, Saratov State University, 83 Astrakhanskaya st., 410012 Saratov, Russia; (R.A.V.); (V.O.P.); (O.A.S.)
| | - Olga A. Sindeeva
- Institute of Nanostructures and Biosystems, Saratov State University, 83 Astrakhanskaya st., 410012 Saratov, Russia; (R.A.V.); (V.O.P.); (O.A.S.)
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Building 3, 143026 Moscow, Russia
| | - Timothy E. L. Douglas
- Engineering Department, Lancaster University, Gillow Av., Lancaster LA1 4YW, UK;
- Materials Science Institute (MSI), Lancaster University, Gillow Av., Lancaster LA1 4YW, UK
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11
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Mayorova OA, Grinev VS, Yegorova AY. Hybrid hetarylhydrazones and enamines of Furan-2(3H)-ones as a framework for the synthesis of poly-N-heterocycles. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.102950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Prikhozhdenko ES, Gusliakova OI, Kulikov OA, Mayorova OA, Shushunova NA, Abdurashitov AS, Bratashov DN, Pyataev NA, Tuchin VV, Gorin DA, Sukhorukov GB, Sindeeva OA. Target delivery of drug carriers in mice kidney glomeruli via renal artery. Balance between efficiency and safety. J Control Release 2021; 329:175-190. [PMID: 33276016 DOI: 10.1016/j.jconrel.2020.11.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/11/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022]
Abstract
Targeting drug delivery systems is crucial to reducing the side effects of therapy. However, many of them are lacking effectiveness for kidney targeting, due to systemic dispersion and accumulation in the lungs and liver after intravenous administration. Renal artery administration of carriers provides their effective local accumulation but may cause irreversible vessel blockage. Therefore, the combination of the correct administration procedure, suitable drug delivery system, selection of effective and safe dosage is the key to sparing local therapy. Here, we propose the 3-μm sized fluorescent capsules based on poly-L-arginine and dextran sulfate for targeting the kidney via a mice renal artery. Hemodynamic study of the target kidney in combination with the histological analysis reveals a safe dose of microcapsules (20 × 106), which has not lead to irreversible pathological changes in blood flow and kidney tissue, and provides retention of 20.5 ± 3% of the introduced capsules in the renal cortex glomeruli. Efficacy of fluorescent dye localization in the target kidney after intra-arterial administration is 9 times higher than in the opposite kidney and after intravenous injection. After 24 h microcapsules are not observed in the target kidney when the safe dose of carriers is being used but a high level of fluorescent signal persists for 48 h indicating that fluorescent cargo accumulation in tissues. Injection of non-safe microcapsule dose leads to carriers staying in glomeruli for at least 48 h which has consequences of blood flow not being restored and tissue damage being observed in histology.
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Affiliation(s)
| | - Olga I Gusliakova
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Oleg A Kulikov
- Ogarev Mordovia State University, 68 Bolshevistskaya str., Saransk 430005, Russia
| | - Oksana A Mayorova
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | | | - Arkady S Abdurashitov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia
| | - Daniil N Bratashov
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Nikolay A Pyataev
- Ogarev Mordovia State University, 68 Bolshevistskaya str., Saransk 430005, Russia
| | - Valery V Tuchin
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia; National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
| | - Dmitry A Gorin
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia
| | - Gleb B Sukhorukov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia; School of Engineering and Materials Science, Queen Mary University of London, Mile End, Eng, 215, London E1 4NS, United Kingdom
| | - Olga A Sindeeva
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia; Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow 143005, Russia.
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13
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Verkhovskii RA, Kozlova AA, Sindeeva OA, Kozhevnikov IO, Prikhozhdenko ES, Mayorova OA, Grishin OV, Makarkin MA, Ermakov AV, Abdurashitov AS, Tuchin VV, Bratashov DN. Lightsheet-based flow cytometer for whole blood with the ability for the magnetic retrieval of objects from the blood flow. Biomed Opt Express 2021; 12:380-394. [PMID: 33659080 PMCID: PMC7899519 DOI: 10.1364/boe.413845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/29/2020] [Accepted: 12/06/2020] [Indexed: 05/04/2023]
Abstract
Detection and extraction of circulating tumor cells and other rare objects in the bloodstream are of great interest for modern diagnostics, but devices that can solve this problem for the whole blood volume of laboratory animals are still rare. Here we have developed SPIM-based lightsheet flow cytometer for the detection of fluorescently-labeled objects in whole blood. The bypass channel between two blood vessels connected with the external flow cell was used to visualize, detect, and magnetically separate fluorescently-labeled objects without hydrodynamic focusing. Carriers for targeted drug delivery were used as model objects to test the device performance. They were injected into the bloodstream of the rat, detected fluorescently, and then captured from the bloodstream by a magnetic separator prior to filtration in organs. Carriers extracted from the whole blood were studied by a number of in vitro methods.
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Affiliation(s)
| | | | - Olga A. Sindeeva
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
- Skolkovo Innovation Center, 3 Nobel str., Moscow 121205, Russia
| | | | | | - Oksana A. Mayorova
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | - Oleg V. Grishin
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | | | - Alexey V. Ermakov
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
| | | | - Valery V. Tuchin
- Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Russia
- National Research Tomsk State University, 36 Lenin Avenue, Tomsk 634050, Russia
- Institute of Precision Mechanics and Control of the RAS, 24 Rabochaya str., Saratov 410028, Russia
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14
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Linkova EI, Grinev VS, Mayorova OA, Yegorova AY. 7a-Phenyltetrahydropyrrolo[2,1- b]oxazol-5(6 H)-one. IUCr Data 2020; 5:x200919. [DOI: 10.1107/s2414314620009190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/06/2020] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C12H13NO2, the pyrrolidinone moiety is almost flat while the oxazole ring adopts an envelope conformation with the carbon atom bearing the phenyl substituent as the flap: the angle between the mean planes of the fused heterocyclic rings is 45.47 (19)°. In the crystal, C—H...O and C—H...π contacts link the molecules into infinite [010] chains.
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15
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Mayorova OA, Grinev VS, Yegorova AY. ( Z)-5-(4-Bromophenyl)-3-{[(3,5-dichlorophenyl)amino]methylidene}furan-2(3 H)-one. IUCr Data 2020; 5:x200937. [DOI: 10.1107/s2414314620009372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/09/2020] [Indexed: 11/10/2022] Open
Abstract
The title compound, C17H10BrCl2NO2, crystallizes in the monoclinic space group C2/c with a large cell volume of 6207 (3) Å3. The asymmetric unit of the title compound investigated at 120 K contains two crystallographically independent molecules (Z′ = 2). Each molecule demonstrates slight non-planarity in the solid state and a Z-configuration for the exocyclic C=C bond. The crystal packing reveals the presence of π-π stacking interactions between the substituted benzene rings [centroid–centroid distances of 3.836 (5) Å, shift distances in the range 1.272–1.843 Å].
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16
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Mayorova OA, Sindeeva OA, Lomova MV, Gusliakova OI, Tarakanchikova YV, Tyutyaev EV, Pinyaev SI, Kulikov OA, German SV, Pyataev NA, Gorin DA, Sukhorukov GB. Endovascular addressing improves the effectiveness of magnetic targeting of drug carrier. Comparison with the conventional administration method. Nanomedicine 2020; 28:102184. [PMID: 32222475 DOI: 10.1016/j.nano.2020.102184] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/20/2020] [Accepted: 03/15/2020] [Indexed: 02/08/2023]
Abstract
Many nanomedicine approaches are struggling to reach high enough effectiveness in delivery if applied systemically. The perspective is sought to explore the clinical practices currently used for localized treatment. In this study, we combine in vivo targeting of carriers sensitive to the external magnetic field with clinically used endovascular delivery to specific site. Fluorescent micron-size capsules made of biodegradable polymers and containing magnetite nanoparticles incorporated in the capsule wall were explored in vivo using Near-Infrared Fluorescence Live Imaging for Real-Time. Comparison of systemic (intravenous) and directed (intra-arterial) administration of the magnetic microcapsule targeting in the hindpaw vessels demonstrated that using femoral artery injection in combination with magnetic field exposure is 4 times more efficient than tail vein injection. Thus, endovascular targeting significantly improves the capabilities of nanoengineered drug delivery systems reducing the systemic side effects of therapy.
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Affiliation(s)
- Oksana A Mayorova
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia
| | - Olga A Sindeeva
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia.
| | - Maria V Lomova
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia
| | - Olga I Gusliakova
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia; Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Moscow, Russia
| | - Yana V Tarakanchikova
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia
| | | | - Sergey I Pinyaev
- National Research Ogarev Mordovia State University, Saransk, Russia
| | - Oleg A Kulikov
- National Research Ogarev Mordovia State University, Saransk, Russia
| | - Sergey V German
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Moscow, Russia
| | | | - Dmitry A Gorin
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Moscow, Russia
| | - Gleb B Sukhorukov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Moscow, Russia; School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom; I.M.Sechenov First Moscow State Medical University, Moscow, Russia.
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17
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Sindeeva OA, Verkhovskii RA, Abdurashitov AS, Voronin DV, Gusliakova OI, Kozlova AA, Mayorova OA, Ermakov AV, Lengert EV, Navolokin NA, Tuchin VV, Gorin DA, Sukhorukov GB, Bratashov DN. Effect of Systemic Polyelectrolyte Microcapsule Administration on the Blood Flow Dynamics of Vital Organs. ACS Biomater Sci Eng 2019; 6:389-397. [PMID: 33463221 DOI: 10.1021/acsbiomaterials.9b01669] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Polyelectrolyte microcapsules and other targeted drug delivery systems could substantially reduce the side effects of drug and overall toxicity. At the same time, the cardiovascular system is a unique transport avenue that can deliver drug carriers to any tissue and organ. However, one of the most important potential problems of drug carrier systemic administration in clinical practice is that the carriers might cause circulatory disorders, the development of pulmonary embolism, ischemia, and tissue necrosis due to the blockage of small capillaries. Thus, the presented work aims to find out the processes occurring in the bloodstream after the systemic injection of polyelectrolyte capsules that are 5 μm in size. It was shown that 1 min after injection, the number of circulating capsules decreases several times, and after 15 min less than 1% of the injected dose is registered in the blood. By this time, most capsules accumulate in the lungs, liver, and kidneys. However, magnetic field action could slightly increase the accumulation of capsules in the region-of-interest. For the first time, we have investigated the real-time blood flow changes in vital organs in vivo after intravenous injection of microcapsules using a laser speckle contrast imaging system. We have demonstrated that the organism can adapt to the emergence of drug carriers in the blood and their accumulation in the vessels of vital organs. Additionally, we have evaluated the safety of the intravenous administration of various doses of microcapsules.
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Affiliation(s)
- Olga A Sindeeva
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Peoples' Friendship University of Russia, 6 Mikluho-Maklaya St., Moscow 117198, Russia
| | - Roman A Verkhovskii
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya st., Saratov 410054, Russia
| | - Arkady S Abdurashitov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
| | - Denis V Voronin
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,National University of Oil and Gas (Gubkin University), 65 Leninsky Prospekt, Moscow 119991, Russia
| | - Olga I Gusliakova
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia
| | | | - Oksana A Mayorova
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia
| | - Aleksey V Ermakov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia
| | - Ekaterina V Lengert
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Ghent University, 653 Coupure Links, Ghent 9000, Belgium
| | - Nikita A Navolokin
- Saratov State Medical University, 112 Bolshaya Kazachia st., Saratov 410012, Russia
| | - Valery V Tuchin
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,National University of Oil and Gas (Gubkin University), 65 Leninsky Prospekt, Moscow 119991, Russia.,Institute of Precision Mechanics and Control, Russian Academy of Sciences, 24 Rabochaya St., Saratov 410028, Russia
| | - Dmitry A Gorin
- Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia
| | - Gleb B Sukhorukov
- Peoples' Friendship University of Russia, 6 Mikluho-Maklaya St., Moscow 117198, Russia.,Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia.,Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Daniil N Bratashov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow 141701, Russia
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18
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Vostrikova AV, Prikhozhdenko ES, Mayorova OA, Goryacheva IY, Tarakina NV, Sukhorukov GB, Sapelkin AV. Thermal carbonization in nanoscale reactors: controlled formation of carbon nanodots inside porous CaCO 3 microparticles. Sci Rep 2018; 8:9394. [PMID: 29925932 PMCID: PMC6010419 DOI: 10.1038/s41598-018-27488-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/14/2018] [Indexed: 11/08/2022] Open
Abstract
Synthesis of carbon nanodots (CNDs) in confined geometry via incorporation of dextran sulphate into pores of CaCO3 microparticles is demonstrated. The preparation process included three steps: co-precipitation of solutions of inorganic salts and carbon source, thermal treatment and CaCO3 matrix removal. We show that geometric constraints can be used to precisely control the amount of source material and to avoid formation of large carbon particles. Analysis of TEM data shows particle size of ~3.7 nm with narrow size distribution. Furthermore, we found that variation in pore morphology has a clear effect on CNDs structure and optical properties. CNDs with graphene oxide like structure were obtained in the nanoporous outer shell layer of CaCO3 microparticles, while less ordered CNDs with the evidence of complex disordered carbons were extracted from the inner microcavity. These results suggest that confined volume synthesis route in CaCO3 nanopores can be used to precisely control the structure and optical properties of CNDs.
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Affiliation(s)
- Anna V Vostrikova
- Saratov State University, 83 Astrakhanskaya Street, Saratov, 410012, Russia
| | | | - Oksana A Mayorova
- Saratov State University, 83 Astrakhanskaya Street, Saratov, 410012, Russia
| | | | - Nadezda V Tarakina
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Gleb B Sukhorukov
- Saratov State University, 83 Astrakhanskaya Street, Saratov, 410012, Russia
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Andrei V Sapelkin
- Saratov State University, 83 Astrakhanskaya Street, Saratov, 410012, Russia.
- School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
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19
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Vidiasheva IV, Abalymov AA, Kurochkin MA, Mayorova OA, Lomova MV, German SV, Khalenkow DN, Zharkov MN, Gorin DA, Skirtach AG, Tuchin VV, Sukhorukov GB. Transfer of cells with uptaken nanocomposite, magnetite-nanoparticle functionalized capsules with electromagnetic tweezers. Biomater Sci 2018; 6:2219-2229. [DOI: 10.1039/c8bm00479j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Targeted cell delivery via electromagnetic tweezers.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Dmitry A. Gorin
- Saratov State University
- Saratov
- Russia
- Skolkovo Institute of Science and Technology
- Moscow
| | | | - Valery V. Tuchin
- Saratov State University
- Saratov
- Russia
- Tomsk State University
- Tomsk
| | - Gleb B. Sukhorukov
- Saratov State University
- Saratov
- Russia
- Queen Mary University of London
- England
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20
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Mayorova OA, Yegorova AY. ¹³C and ¹H NMR study of azo coupling products from diazonium salts and furan-2-(3H)-ones. Magn Reson Chem 2015; 53:853-856. [PMID: 26095715 DOI: 10.1002/mrc.4270] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Oksana A Mayorova
- Institute of Chemistry, Faculty of Organic and Bioorganic Chemistry, Saratov State University, Saratov, Russia
| | - Alevtina Yu Yegorova
- Institute of Chemistry, Faculty of Organic and Bioorganic Chemistry, Saratov State University, Saratov, Russia
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