|
1
|
Papezhuk MV, Ivanin SN, Yakupov RP, Buz’ko VY, Sukhno IV, Gneush AN, Petriev IS. Obtaining Polyvinylpyrrolidone Fibers Using the Electroforming Method with the Inclusion of Microcrystalline High-Temperature Phosphates. Int J Mol Sci 2024; 25:2298. [PMID: 38396975 PMCID: PMC10888835 DOI: 10.3390/ijms25042298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/10/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
The results of the synthesis of microcrystalline calcium phosphates such as hydroxoapatite, pyrophosphate, and tricalcium phosphate are presented herein. The influence of the addition of polyvinylpyrrolidone (PVP) on the phase characteristics of the resulting high-temperature ceramic sample is considered. The X-ray results show that hydroxyapatite (HAp) consists of a Ca5(PO4)3(OH) phase, while the sample with the addition of polyvinylpyrrolidone contains β-Ca3(PO4)2 (65.5%) and β-Ca2P2O7 (34.5%) phases calcium phosphates (CPs). IR spectroscopy was used to characterize the compositions of the samples. An important characteristic of the obtained samples is the elemental Ca/P ratio, which was determined via energy-dispersive analysis. The data obtained are consistent with the composition of dental enamel apatites, namely, in the CPs (1.27) and HAp (1.40). SEM was used to study the morphology of the surfaces of hydroxyapatite particles. Polyvinylpyrrolidone polymer fibers were obtained using the electroforming method with the inclusion of CPs in the composition. The fibers were oriented randomly, and nanoscale hydroxyapatite particles were incorporated into the fiber structure. Solubility data of the HAp, CPs, and Fibers in a physiological solution at room temperature and human body temperature were obtained. The solubility of the resulting HAp turned out to be higher than the solubility of the CPs. In turn, the concentration of Ca2+ in a physiological solution of PVP composite fibers with the inclusion of CPs was lower than that in powdered CPs.
Collapse
Affiliation(s)
- Marina Vladimirovna Papezhuk
- Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia; (M.V.P.); (S.N.I.); (R.P.Y.); (V.Y.B.)
| | - Sergei Nikolaevich Ivanin
- Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia; (M.V.P.); (S.N.I.); (R.P.Y.); (V.Y.B.)
- Laboratory of Advanced Nanobiotechnologies, Kuban State Agricultural University, 350044 Krasnodar, Russia; (I.V.S.); (A.N.G.)
| | - Roman Pavlovich Yakupov
- Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia; (M.V.P.); (S.N.I.); (R.P.Y.); (V.Y.B.)
- Laboratory of Advanced Nanobiotechnologies, Kuban State Agricultural University, 350044 Krasnodar, Russia; (I.V.S.); (A.N.G.)
| | - Vladimir Yurievich Buz’ko
- Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia; (M.V.P.); (S.N.I.); (R.P.Y.); (V.Y.B.)
- Laboratory of Advanced Nanobiotechnologies, Kuban State Agricultural University, 350044 Krasnodar, Russia; (I.V.S.); (A.N.G.)
| | - Igor Vladimirovich Sukhno
- Laboratory of Advanced Nanobiotechnologies, Kuban State Agricultural University, 350044 Krasnodar, Russia; (I.V.S.); (A.N.G.)
| | - Anna Nikolaevna Gneush
- Laboratory of Advanced Nanobiotechnologies, Kuban State Agricultural University, 350044 Krasnodar, Russia; (I.V.S.); (A.N.G.)
| | - Iliya Sergeevich Petriev
- Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia; (M.V.P.); (S.N.I.); (R.P.Y.); (V.Y.B.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Southern Scientific Centre of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia
| |
Collapse
|
|
2
|
Alagumalai K, Palanisamy S, Kumar PS, ElNaker NA, Kim SC, Chiesa M, Prakash P. Improved electrochemical detection of levofloxacin in diverse aquatic samples using 3D flower-like Co@CaPO 4 nanospheres. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123189. [PMID: 38123118 DOI: 10.1016/j.envpol.2023.123189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/22/2023] [Accepted: 12/17/2023] [Indexed: 12/23/2023]
Abstract
The misuse of antibiotics has become a concerning environmental issue, posing a significant threat to public health. Levofloxacin (LFX), a fluoroquinolone antibiotic, is particularly worrisome due to its detrimental impact on human health and the ecosystem. Therefore, the selective and accurate identification of LFX is of utmost importance. In this study, we have developed an electrochemical sensor based on cobalt-doped calcium phosphate (Co@CaHPO) for the sensitive and selective detection of LFX in various water samples. Under optimized conditions, the Co@CaHPO-modified glassy carbon electrode (GCE) exhibited exceptional electrochemical activity, low charge transfer resistance, and a fast electron transfer rate, outperforming the unmodified GCE. The proposed Co@CaHPO-modified GCE demonstrated remarkable electrochemical characteristics, including a wide linear range (0.3-460 μM) and a lower detection limit (0.151 μM) with high sensitivity (0.676 μAμM-1 cm2). This detection approach may enable the direct detection of LFX in the pharmaceutical environment. Furthermore, the resulting sensor exhibited good selectivity, excellent cyclic and storage stability, reproducibility, and repeatability. The practical application of this LFX sensor can be extended to various water samples, yielding reliable and satisfactory results.
Collapse
Affiliation(s)
| | - Selvakumar Palanisamy
- Laboratory for Energy and NanoScience (LENS), Mechanical and Nuclear Engineering Department, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates.
| | - Ponnaiah Sathish Kumar
- Magnetics Initiative Life Care Research Center, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-myeon, Dalseong-gun, Daegu, 711-873, Republic of Korea; Department of Chemistry, Thiagarajar College, Madurai, 625009, Tamil Nadu, India
| | - Nancy A ElNaker
- Laboratory for Energy and NanoScience (LENS), Mechanical and Nuclear Engineering Department, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates
| | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Matteo Chiesa
- Laboratory for Energy and NanoScience (LENS), Mechanical and Nuclear Engineering Department, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates; Department of Physics and Technology, UiT The Artic University of Norway, 9010, Tromso, Norway
| | | |
Collapse
|
|
3
|
Griesiute D, Kizalaite A, Dubnika A, Klimavicius V, Kalendra V, Tyrpekl V, Cho SH, Goto T, Sekino T, Zarkov A. A copper-containing analog of the biomineral whitlockite: dissolution-precipitation synthesis, structural and biological properties. Dalton Trans 2024; 53:1722-1734. [PMID: 38167907 DOI: 10.1039/d3dt03756h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In the present work, copper whitlockite (Cu-WH, Ca18Cu2(HPO4)2(PO4)12) was successfully synthesized and comprehensively characterized, founding the base knowledge for its future studies in medicine, particularly for bone regeneration. This material is a copper-containing analog of the well-known biomineral magnesium whitlockite (Mg-WH, Ca18Mg2(HPO4)2(PO4)12). The synthesis of powders was performed by a dissolution-precipitation method in an aqueous medium under hydrothermal conditions. Phase conversion from brushite (CaHPO4·2H2O) to Cu-WH took place in an acidic medium in the presence of Cu2+ ions. Optimization of the synthesis conditions in terms of medium pH, temperature, time, Ca/Cu molar ratio and concentration of starting materials was performed. The crystal structure of the synthesized products was confirmed by XRD, FTIR and Raman spectroscopy, 1H and 31P solid-state NMR, and EPR. Morphological features and elemental distribution of the synthesized powders were studied by means of SEM/EDX analysis. The ion release in SBF solution was estimated using ICP-OES. Cytotoxicity experiments were performed with MC3T3-E1 cells. The study on thermal stability revealed that the synthesized material is thermally unstable and gradually decomposes upon annealing to Cu-substituted β-Ca3(PO4)2 and Ca2P2O7.
Collapse
Affiliation(s)
- Diana Griesiute
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania.
| | - Agne Kizalaite
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania.
| | - Arita Dubnika
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Faculty of Materials Science and Applied Chemistry, Institute of General Chemical Engineering, Riga Technical University, LV-1007 Riga, Latvia
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1658 Riga, Latvia
| | - Vytautas Klimavicius
- Institute of Chemical Physics, Vilnius University, Sauletekio 3, LT-10257 Vilnius, Lithuania
| | - Vidmantas Kalendra
- Institute of Applied Electrodynamics and Telecommunications, Vilnius University, Sauletekio 3, LT-10257 Vilnius, Lithuania
| | - Vaclav Tyrpekl
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague, Czech Republic
| | - Sung Hun Cho
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Tomoyo Goto
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tohru Sekino
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Aleksej Zarkov
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania.
| |
Collapse
|
|
4
|
Witkowska J, Borowski T, Sowińska A, Choińska E, Moszczyńska D, Morgiel J, Sobiecki J, Wierzchoń T. Influence of Low Temperature Plasma Oxidizing on the Bioactivity of NiTi Shape Memory Alloy for Medical Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6086. [PMID: 37763363 PMCID: PMC10533197 DOI: 10.3390/ma16186086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
The present study elucidates the impact of glow discharge oxidation within a low-temperature plasma environment on the bioactivity characteristics of an NiTi shape memory alloy. The properties of the produced surface layers, such as structure (TEM observations), surface morphology (SEM observations), chemical and phase composition (EDS and XRD measurements), wettability (optical gonimeter), and the biological response of osteoblasts and platelets to the oxidized surface compared with the NiTi alloy without a surface layer are presented. The presented surface modification of the NiTi shape memory alloy, achieved through oxidizing in a low-temperature plasma environment, led to the creation of a continuous surface layer composed of nanocrystalline titanium oxide TiO2 (rutile). The findings obtained from this study provide evidence that the oxidized layer augments the bioactivity of the shape memory alloy. This augmentation was substantiated through the spontaneous biomimetic deposition of apatite from a simulated body fluid (SBF) solution. Furthermore, the modified surface exhibited improved osteoblast proliferation, and enhanced platelet adhesion and activation. This proposed surface modification strategy holds promise as a prospective solution to enhance the biocompatibility and bioactivity of NiTi shape memory alloy intended for prolonged use in bone implant applications.
Collapse
Affiliation(s)
- Justyna Witkowska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| | - Tomasz Borowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| | - Agnieszka Sowińska
- Pathology Department, Children’s Memorial Health Institute, 04-730 Warsaw, Poland;
| | - Emilia Choińska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| | - Dorota Moszczyńska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| | - Jerzy Morgiel
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, Poland;
| | - Jerzy Sobiecki
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| | - Tadeusz Wierzchoń
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland; (T.B.); (E.C.); (D.M.); (J.S.); (T.W.)
| |
Collapse
|