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Szewczyk-Łagodzińska M, Oleksiuk D, Kowalczyk S, Czajka A, Dużyńska A, Łapińska A, Ryszkowska J, Dziewit P, Janiszewski J, Plichta A. Multifunctional Block Copolymers, Acting as Recycling Aids, by Atom Transfer Radical Polymerization. ChemSusChem 2024; 17:e202301232. [PMID: 37975580 DOI: 10.1002/cssc.202301232] [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] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
Block copolymers utilizing oligomeric poly(pentylene-co-hexylene carbonate)diol modified with 2,4-diisocyanatotoluene and further with 2-bromo-N-(3-hydroxypropyl)-2-methylpropanamide were synthesized and utilized as Activators ReGenerated by Electron Transfer Atom Transfer Radical Polymerization macroinitiators to obtain a first generation of multifunctional recycling additives with poly(glycidyl methacrylate-co-butyl methacrylate-co-methyl methacrylate) side chains, which could act as chain extenders. Then, chosen additive was reacted with a radical scavenger, 3,5-ditertbutyl-4-hydroxybenzoic acid (DHBA), to obtain a second generation of reactive additives. Those copolymers had different numbers of epoxy groups per polymer chain, and different number of epoxides opened with DHBA, hence showed a range of properties, and were utilized as reactive modifiers for polylactide (PLA) extrusion melting. The first-generation modifiers caused an increase in PLA's blends relative melt viscosity, stabilized material properties, and enhanced impact strength, while the second-generation modifiers with more than 8 % of epoxide ring opened showed worse properties. However, they managed to suppress the UV degradation of PLA blend plates.
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Affiliation(s)
| | - Dawid Oleksiuk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Anna Czajka
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland
| | - Anna Dużyńska
- Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662, Warsaw, Poland
| | - Anna Łapińska
- Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662, Warsaw, Poland
| | - Joanna Ryszkowska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland
| | - Piotr Dziewit
- Faculty of Mechatronics, Armament and Aerospace, Jarosław Dąbrowski Military University of Technology, Gen. Sylwester Kaliski 2, 00-908, Warsaw, Poland
| | - Jacek Janiszewski
- Faculty of Mechatronics, Armament and Aerospace, Jarosław Dąbrowski Military University of Technology, Gen. Sylwester Kaliski 2, 00-908, Warsaw, Poland
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
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2
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Pachla J, Kopiasz RJ, Marek G, Tomaszewski W, Głogowska A, Drężek K, Kowalczyk S, Podgórski R, Butruk-Raszeja B, Ciach T, Mierzejewska J, Plichta A, Augustynowicz-Kopeć E, Jańczewski D. Polytrimethylenimines: Highly Potent Antibacterial Agents with Activity and Toxicity Modulated by the Polymer Molecular Weight. Biomacromolecules 2023; 24:2237-2249. [PMID: 37093622 PMCID: PMC10170506 DOI: 10.1021/acs.biomac.3c00139] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Cationic polymers have been extensively investigated as a potential replacement for traditional antibiotics. Here, we examined the effect of molecular weight (MW) on the antimicrobial, cytotoxic, and hemolytic activity of linear polytrimethylenimine (L-PTMI). The results indicate that the biological activity of the polymer sharply increases as MW increases. Thanks to a different position of the antibacterial activity and toxicity thresholds, tuning the MW of PTMI allows one to achieve a therapeutic window between antimicrobial activity and toxicity concentrations. L-PTMI presents significantly higher antimicrobial activity against model microorganisms than linear polyethylenimine (L-PEI) when polymers with a similar number of repeating units are compared. For the derivatives of L-PTMI and L-PEI, obtained through N-monomethylation and partial N,N-dimethylation of linear polyamines, the antimicrobial activity and toxicity were both reduced; however, resulting selectivity indices were higher. Selected materials were tested against clinical isolates of pathogens from the ESKAPE group and Mycobacteria, revealing good antibacterial properties of L-PTMI against antibiotic-resistant strains of Gram-positive and Gram-negative bacteria but limited antibacterial properties against Mycobacteria.
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Affiliation(s)
- Julita Pachla
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Rafał J Kopiasz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Gabriela Marek
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Waldemar Tomaszewski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Agnieszka Głogowska
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, Płocka 26, 01-138 Warsaw, Poland
| | - Karolina Drężek
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Rafał Podgórski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Beata Butruk-Raszeja
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Jolanta Mierzejewska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, Płocka 26, 01-138 Warsaw, Poland
| | - Dominik Jańczewski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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Kasiński A, Świerczek A, Zielińska-Pisklak M, Kowalczyk S, Plichta A, Zgadzaj A, Oledzka E, Sobczak M. Dual-Stimuli-Sensitive Smart Hydrogels Containing Magnetic Nanoparticles as Antitumor Local Drug Delivery Systems-Synthesis and Characterization. Int J Mol Sci 2023; 24:ijms24086906. [PMID: 37108074 PMCID: PMC10138940 DOI: 10.3390/ijms24086906] [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: 03/13/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
The aim of this study was to develop an innovative, dual-stimuli-responsive smart hydrogel local drug delivery system (LDDS), potentially useful as an injectable simultaneous chemotherapy and magnetic hyperthermia (MHT) antitumor treatment device. The hydrogels were based on a biocompatible and biodegradable poly(ε-caprolactone-co-rac-lactide)-b-poly(ethylene glycol)-b-poly(ε-caprolactone-co-rac-lactide) (PCLA-PEG-PCLA, PCLA) triblock copolymer, synthesized via ring-opening polymerization (ROP) in the presence of a zirconium(IV) acetylacetonate (Zr(acac)4) catalyst. The PCLA copolymers were successfully synthesized and characterized using NMR and GPC techniques. Furthermore, the gel-forming and rheological properties of the resulting hydrogels were thoroughly investigated, and the optimal synthesis conditions were determined. The coprecipitation method was applied to create magnetic iron oxide nanoparticles (MIONs) with a low diameter and a narrow size distribution. The magnetic properties of the MIONs were close to superparamagnetic upon TEM, DLS, and VSM analysis. The particle suspension placed in an alternating magnetic field (AMF) of the appropriate parameters showed a rapid increase in temperature to the values desired for hyperthermia. The MIONs/hydrogel matrices were evaluated for paclitaxel (PTX) release in vitro. The release was prolonged and well controlled, displaying close to zero-order kinetics; the drug release mechanism was found to be anomalous. Furthermore, it was found that the simulated hyperthermia conditions had no effect on the release kinetics. As a result, the synthesized smart hydrogels were discovered to be a promising antitumor LDDS, allowing simultaneous chemotherapy and hyperthermia treatment.
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Affiliation(s)
- Adam Kasiński
- Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland
| | - Agata Świerczek
- Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland
| | - Monika Zielińska-Pisklak
- Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland
| | - Anna Zgadzaj
- Department of Toxicology and Food Science, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
| | - Ewa Oledzka
- Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland
| | - Marcin Sobczak
- Department of Pharmaceutical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Str., 02-097 Warsaw, Poland
- Military Institute of Hygiene and Epidemiology, 4 Kozielska Str., 01-163 Warsaw, Poland
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Kowalczyk S, Dębowski M, Iuliano A, Brzeski S, Plichta A. Synthesis of (Hyper)Branched Monohydroxyl Alkoxysilane Oligomers toward Silanized Urethane Prepolymers. Molecules 2022; 27:molecules27092790. [PMID: 35566135 PMCID: PMC9105832 DOI: 10.3390/molecules27092790] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
The aim of this work was the synthesis of (hyper)branched oligomers based on trialkoxysilane in various conditions and further application of them in order to modify the urethane prepolymers. Hydroxyl-terminated trialkoxysilane was used as a monomer for homo-condensation. It was obtained by reaction of 3-aminopropyl trialkoxysilane (APTES) with ethylene carbonate (EC). The reaction was based on the attack of amine at the carbonyl carbon atom followed by ring opening of the carbonate to give a urethane (carbamate) product. The next step was the condensation via substitution of ethoxy groups on silicon atom with the terminal hydroxyalkyl groups present in the primary product with the evolution of ethanol. Accordingly, the impact of temperature and type of catalyst on process efficiency was investigated. A quantitative analysis of reaction progress and products of the conversion of EC together with ethanol evolution was conducted by means of gas chromatography, which allowed us to determine the formation of monomeric product and, indirectly, of oligomeric products. It was found that at room temperature after 24 h, the majority of the monomeric product was isolated, whereas at elevated temperature in the presence of Ti-based catalyst, further condensation of the monomer into branched oligomers was preferred, and, moreover, the application of vacuum intensified that process. The obtained products were structurally characterized by 1H and 29Si NMR, MALDI-ToF and Gel Permeation Chromatography. Finally, two different alkoxysilane products, monomeric and oligomeric, were applied for modification of urethane prepolymer, forming silanized one (SPUR). The influence of the silanizing agent on the mechanical and thermal properties of the moisture-cured products was shown before and after additional conditioning in water.
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5
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Zawadzki M, Zawada K, Kowalczyk S, Plichta A, Jaczewski J, Zabielski T. 3D reactive inkjet printing of aliphatic polyureas using in-air coalescence technique. RSC Adv 2022; 12:3406-3415. [PMID: 35425380 PMCID: PMC8979265 DOI: 10.1039/d1ra07883f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 10/26/2021] [Accepted: 01/10/2022] [Indexed: 01/01/2023] Open
Abstract
An in-flight coalescence reactive inkjet printer has been developed to facilitate the in-air collision of two reactive microdroplets. This way precise volumes of reactive inks can be mixed and subsequently deposited on the substrate to produce the desired product by polymer synthesis and patterning in a single step. In this work, we validate the printer capabilities by fabrication of a series of 3D structures using an aliphatic polyurea system (isophorone diisocyanate IPDI and poly(propylene glycol) bis(2-aminopropyl ether) PEA-400). The influence of temperature and ink ratio on the material properties has been investigated. An increase in both IPDI and temperature facilitates the production of materials with higher Young's Modulus E and higher ultimate strength U. The possibility of printing different materials i.e. ductile (U = 2 MPa, εB = 450%), quasi-brittle (U = 14 MPa, εB = 350%), and brittle (U = 10 MPa, εB = 11%) by varying the printing process parameters using one set of inks has been presented. The anisotropy of the material properties arising from different printing directions is at the 20% level. In flight coalescence of polyurea inks in different volume ratios produces materials with varied degrees of elasticity.![]()
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Affiliation(s)
- Maciej Zawadzki
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
- Zdalny Serwis sp z o.o., Wysowska 12, 02-928 Warsaw, Poland
| | | | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Jan Jaczewski
- AVICON Advanced Vision Control, Jerozolimskie 202, Warsaw, Poland
| | - Tomasz Zabielski
- AVICON Advanced Vision Control, Jerozolimskie 202, Warsaw, Poland
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Zeranska-Chudek K, Wróblewska A, Kowalczyk S, Plichta A, Zdrojek M. Graphene Infused Ecological Polymer Composites for Electromagnetic Interference Shielding and Heat Management Applications. Materials (Basel) 2021; 14:2856. [PMID: 34073472 PMCID: PMC8198334 DOI: 10.3390/ma14112856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 03/31/2021] [Revised: 05/17/2021] [Accepted: 05/22/2021] [Indexed: 11/17/2022]
Abstract
In the age of mobile electronics and increased aerospace interest, multifunctional materials such as the polymer composites reported here are interesting alternatives to conventional materials, offering reduced cost and size of an electrical device packaging. We report a detailed study of an ecological and dual-functional polymer composite for electromagnetic interference (EMI) shielding and heat management applications. We studied a series of polylactic acid/graphene nanoplatelet composites with six graphene nanoplatelet loadings, up to 15 wt%, and three different flake lateral sizes (0.2, 5 and 25 μm). The multifunctionality of the composites is realized via high EMI shielding efficiency exceeding 40 dB per 1 mm thick sample and thermal conductivity of 1.72 W/mK at 15 wt% nanofiller loading. The EMI shielding efficiency measurements were conducted in the microwave range between 0.2 to 12 GHz, consisting of the highly relevant X-band (8-12 GHz). Additionally, we investigate the influence of the nanofiller lateral size on the studied physical properties to optimize the studied functionalities per given nanofiller loading.
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Affiliation(s)
- Klaudia Zeranska-Chudek
- Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland; (A.W.); (M.Z.)
| | - Anna Wróblewska
- Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland; (A.W.); (M.Z.)
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Mariusz Zdrojek
- Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland; (A.W.); (M.Z.)
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Jędrzkiewicz D, Kowalczyk S, Plichta A, Ejfler J. Lastingly Colored Polylactide Synthesized by Dye-Initiated Polymerization. Polymers (Basel) 2020; 12:E1980. [PMID: 32878233 PMCID: PMC7563163 DOI: 10.3390/polym12091980] [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: 07/31/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 11/16/2022] Open
Abstract
An efficient synthesis strategy of a well-defined polylactide-dye conjugate in a controlled fashion is presented. The introduction of coloring species as end groups of polylactide (PLA) has been performed by using new homoleptic aminophenolate magnesium or zinc coordination compounds. The molecular structure of metal complexes has been determined in solution by NMR spectroscopy, and in the solid state by X-ray analysis. Lastingly colored polymers were obtained with 2-[4-(Nitrophenylazo)-N-ethylphenylamino]ethanol (Disperse Red 1) and 2-[4-(2-Chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol (Disperse Red 13) at very high lactide conversions, based on MALDI-ToF measurement, and the macromolecules were nearly fully chain end dye-functionalized. Based on 1H NMR, the DPn of conjugates was in the range of 10-300, which was consistent with the reaction setup. Various methods of gel-permeation chromatography (GPC) analysis were applied, and they demonstrated that the number-average molar mass (Mn) values (polystyrene (PS) standards) were a bit higher than calculated, the molar mass distribution index (ƉM) values were moderate to high, the TDA (triple detection array) system was inappropriate for analysis, measurements with PDA (photo diode array) detection at 470 nm gave nearly the same molar mass distributions such as the refractometer, and the relative absorbance of conjugates at 470 nm increased linearly versus (DPn)-1. The presented approach connects the gap between the current strategy of obtaining colored polymer fibers and the design of tailor-made initiators with eco polyesters designed for the targeted applications.
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Affiliation(s)
- Dawid Jędrzkiewicz
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie Str., 50-383 Wrocław, Poland;
| | - Sebastian Kowalczyk
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego Str., 00-664 Warsaw, Poland; (S.K.); (A.P.)
| | - Jolanta Ejfler
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie Str., 50-383 Wrocław, Poland;
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Przybysz A, Wińska-Krysiak M, Małecka-Przybysz M, Stankiewicz-Kosyl M, Skwara M, Kłos A, Kowalczyk S, Jarocka K, Sikorski P. Urban wastelands: On the frontline between air pollution sources and residential areas. Sci Total Environ 2020; 721:137695. [PMID: 32172110 DOI: 10.1016/j.scitotenv.2020.137695] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/27/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
In urban areas, particulate matter (PM) represents an increasing threat to human health. The ability of plants in parks and along roads in cities to accumulate PM has already been demonstrated, but nothing is known about the effect of wasteland vegetation on air quality, despite a significant proportion of greenery in polluted areas being on wastelands. The aim of this study was to document the accumulation of PM and trace elements (TE) by wasteland species (Robinia pseudoacacia L., Populus × canescens (Aiton) Sm., Acer negundo L., Solidago gigantea (Aiton) and Poaceae) growing on Central European urban wastelands with differing levels of air pollution. On average, the largest amounts of PM accumulated on the foliage of R. pseudoacacia and S. gigantea, and the smallest amounts accumulated on P. × canescens leaves. However, accumulation of PM depended more on the distance from the emission source than on species selection, and was higher on the polluted wasteland where the plants' gas exchange was the lowest. The results also suggest that in order to effectively accumulate PM from the air, it is critical to have the correct configuration of plants, with the wasteland vegetation having a layered structure and layers differing in PM retention, as shown in this study using the examples of R. pseudoacacia (a tall tree with low PM retention) and S. gigantea (below-tree vegetation with high PM retention). P. × canescens accumulated the highest concentrations of Cd and Zn, S. gigantea accumulated the highest concentration of Cu, and Poaceae accumulated the highest concentrations of Cr and Ni. These findings have implications for urban vegetation management in areas where there is no organised greenery, and offer proof that vegetation in wasteland areas should be maintained since it is an excellent tool for reducing concentrations of PM at its place of origin.
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Affiliation(s)
- A Przybysz
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland.
| | - M Wińska-Krysiak
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - M Małecka-Przybysz
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - M Stankiewicz-Kosyl
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - M Skwara
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - A Kłos
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - S Kowalczyk
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - K Jarocka
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
| | - P Sikorski
- Department of Remote Sensing and Environmental Assessment, Institute of Environmental Engineering, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland
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10
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Plichta A, Kowalczyk S, Kamiński K, Wasyłeczko M, Więckowski S, Olędzka E, Nałęcz-Jawecki G, Zgadzaj A, Sobczak M. ATRP of Methacrylic Derivative of Camptothecin Initiated with PLA toward Three-Arm Star Block Copolymer Conjugates with Favorable Drug Release. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01350] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Andrzej Plichta
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Sebastian Kowalczyk
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Krzysztof Kamiński
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Monika Wasyłeczko
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Stanisław Więckowski
- Chair
of Chemistry and Technology of Polymers, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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11
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Kowalczyk S, DeBassio W. 0652 HEALTH-RELATED QUALITY OF LIFE IN NARCOLEPSY AND IDIOPATHIC HYPERSOMNIA. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.651] [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: 11/12/2022] Open
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Hetmann A, Wujak M, Kowalczyk S. Protein Transphosphorylation During the Mutual Interaction between Phytochrome A and a Nuclear Isoform of Nucleoside Diphosphate Kinase Is Regulated by Red Light. Biochemistry (Mosc) 2017; 81:1153-1162. [PMID: 27908239 DOI: 10.1134/s0006297916100126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The nuclear isoform of nucleoside diphosphate kinase isoenzyme NDPK-In undergoes strong catalytic activation upon its interaction with the active form of phytochrome A (Pfr) in red light. The autophosphorylation or intermolecular transphosphorylation of NDPK-In leads to the formation of phosphoester bonds stable in acidic solution. The phosphate residue of the phosphamide bond in the active center of NDPK-In can also be transferred to serine and threonine residues localized in other proteins, including phytochrome A. Phytochrome A, similarly to NDPK-In, undergoes autophosphorylation on serine and threonine residues and can phosphorylate some potential substrate proteins. The physical interaction between phytochrome A in the Pfr form and NDPK-In results in a significant increase in the kinase activity of NDPK-In. The results presented in this work indicate that NDPK-In may function as a protein kinase regulated by light.
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Affiliation(s)
- A Hetmann
- Nicolaus Copernicus University, Faculty of Biology and Environment Protection, Department of Biochemistry, Toruń 87-100, Poland.
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13
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Jakubowska A, Zielińska E, Kowalczyk S. [Metabolism and transport of auxin in plants]. Postepy Biochem 2002; 47:169-83. [PMID: 11757319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- A Jakubowska
- Zakład Biochemii Instytutu Biologii Ogólnej i Molekularnej UMK, ul. Gagarina 9, 87-100 Torun.
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14
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Jakubowska A, Kowalczyk S. [Biochemical and molecular basis of symbiotic plant and microbe interactions]. Postepy Biochem 1998; 44:72-82. [PMID: 9738240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- A Jakubowska
- Instytut Biologii i Ochrony Srodowiska, Uniwersytet Mikołaja Kopernika, Toruń
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15
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Kowalczyk S. Molecular diversity of the pyrophosphate-dependent phosphofructokinase isoforms differently activated by fructose 2,6-bisphosphate. Acta Biochim Pol 1993. [DOI: 10.18388/abp.1993_4862] [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: 11/10/2022]
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16
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Bandurski RS, Schulze A, Jensen P, Desrosiers M, Epel B, Kowalczyk S. The mechanism by which an asymmetric distribution of plant growth hormone is attained. Adv Space Res 1992; 12:203-210. [PMID: 11536958 DOI: 10.1016/0273-1177(92)90284-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 05/23/2023]
Abstract
Zea mays (sweet corn) seedlings attain an asymmetric distribution of the growth hormone indole-3-acetic acid (IAA) within 3 minutes following a gravity stimulus. Both free and esterified IAA (that is total IAA) accumulate to a greater extent in the lower half of the mesocotyl cortex of a horizontally placed seedling than in the upper half. Thus, changes in the ratio of free IAA to ester IAA cannot account for the asymmetric distribution. Our studies demonstrate there is no de novo synthesis of IAA in young seedlings. We conclude that asymmetric IAA distribution is attained by a gravity-induced, potential-regulated gating of the movement of IAA from kernel to shoot and from stele to cortex. As a working theory, which we call the Potential Gating Theory, we propose that perturbation of the plant's bioelectric field, induced by gravity, causes opening and closing of transport channels in the plasmodesmata connecting the vascular stele to the surrounding cortical tissues. This results in asymmetric growth hormone distribution which results in the asymmetric growth characteristics of the gravitropic response.
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Affiliation(s)
- R S Bandurski
- Department of Botany and Plant Pathology, Michigan State University, East Lansing 48824-1312
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17
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Kowalczyk S, Bandurski RS. Enzymic synthesis of 1-O-(indol-3-ylacetyl)-beta-D-glucose. Purification of the enzyme from Zea mays, and preparation of antibodies to the enzyme. Biochem J 1991; 279 ( Pt 2):509-14. [PMID: 1719957 PMCID: PMC1151633 DOI: 10.1042/bj2790509] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The enzyme indol-3-ylacetylglucose synthase (UDP-glucose:indol-3-ylacetate beta-D-glucosyltransferase) catalyses the reaction: [formula: see text] This is the first step in the series of reactions leading to the indol-3-ylacetic acid conjugates found in maize. Previous attempts to purify this enzyme from the liquid endosperm of kernels of Zea mays (sweet corn) were not entirely successful owing to the lability of partially purified preparations during column chromatography. Thus this enzyme has not previously been purified to homogeneity. During the present study it was found that retention of enzyme activity required the combined presence of glycerol and dithiothreitol. Adding these requirements permitted purification of the enzyme to homogeneity with retention of catalytic activity. These purified preparations were used for preparation of rabbit polyclonal antibodies to the enzyme. Antibodies to the Zea mays endosperm enzyme cross-react with the enzyme from Zea mays vegetative tissues and with an enzyme from the liquid endosperm of oak acorns (Quercus sp). In this paper we report a simplified purification procedure adaptable to the preparation of milligram amounts of the enzyme.
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Affiliation(s)
- S Kowalczyk
- Department of Botany and Plant Pathology, Michigan State University, East Lansing 48824-1312
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Affiliation(s)
- L M Nyhus
- Living Institute for Surgical Studies, University of Illinois College of Medicine, Chicago
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19
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Kowalczyk S, Bandurski RS. Isomerization of 1-O-indol-3-ylacetyl-beta-D-glucose. Enzymatic hydrolysis of 1-O, 4-O, and 6-O-indol-3-ylacetyl-beta-D-glucose and the enzymatic synthesis of indole-3-acetyl glycerol by a hormone metabolizing complex. Plant Physiol 1990; 94:4-12. [PMID: 11537480 PMCID: PMC1077181 DOI: 10.1104/pp.94.1.4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The first compound in the series of reactions leading to the ester conjugates of indole-3-acetic acid (IAA) in kernels of Zea mays sweet corn is the acyl alkyl acetal, 1-O-indol-3-ylacetyl-beta-D-glucose (1-O-IAGlu). The enzyme catalyzing the synthesis of this compound is UDP-glucose:indol-3-ylacetate glucosyl-transferase (IAGlu synthase). The IAA moiety of the high energy compound 1-O-IAGlu may be enzymatically transferred to myo-inositol or to glycerol or the 1-O-IAGlu may be enzymatically hydrolyzed. Alternatively, nonenzymatic acyl migration may occur to yield the 2-O, 4-O, and 6-O esters of IAA and glucose. The 4-O and 6-O esters may then be enzymatically hydrolyzed to yield free IAA and glucose. This work reports new enzymatic activities, the transfer of IAA from 1-O-IAGlu to glycerol, and the enzyme-catalyzed hydrolysis of 4-O and 6-O-IAGlu. Data is also presented on the rate of non-enzymatic acyl migration of IAA from the 1-O to the 4-O and 6-O positions of glucose. We also report that enzymes catalyzing the synthesis of 1-O-IAGlu and the hydrolysis of 1-O, 4-O, and 6-O-IAGlu fractionate as a hormone metabolizing complex. The association of synthetic and hydrolytic capabilities in enzymes which cofractionate may have physiological significance.
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Affiliation(s)
- S Kowalczyk
- Department of Botany and Plant Pathology, Michigan State University, East Lansing 48824-1312
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Abstract
An in vitro system for carotenogenesis has been developed from the cyanobacterium Anacystis. Precursor conversion is highly effective and almost no colored intermediates before beta-carotene accumulate. These cell-free reactions have been employed to characterize the phytoene desaturation reaction. Phytoene desaturation is dependent on NAD(P)+ and oxygen but insensitive to inhibitors of plant-type monooxygenases. This result suggests a hydride/proton transfer as mechanism for insertion of a double bond into phytoene. Furthermore, feed-back regulation of phytoene desaturase could be demonstrated for most of the subsequent carotenes.
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Affiliation(s)
- G Sandmann
- Lehrstuhl für Physiologie und Biochemie der Pflanzen, Universität Konstanz, FRG
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Caldera K, Colangelo R, DiBlasi M, Garman D, Kowalczyk S, Mason S, Murphy M, Olson A, Orr C, Ouellette F. Exploration of the effect of educational level on the nurse's attitude toward discharge teaching. J Nurs Educ 1980; 19:24-32. [PMID: 6253419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Kowalczyk S. [Dr. Stanislaw Dobrucki (1862-1919) honorary member of the Lublin Medical Society]. Pol Tyg Lek 1974; 29:751-2. [PMID: 4598399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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23
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Miller RE, Vander AJ, Kowalczyk S, Geelhoed GW. Aldosterone secretion and plasma renin during renin infusion and acute salt depletion. Am J Physiol 1968; 214:228-31. [PMID: 5635864 DOI: 10.1152/ajplegacy.1968.214.2.228] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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