1
|
Makri K, Pispas S. Block and Statistical Copolymers of Methacrylate Monomers with Dimethylamino and Diisopropylamino Groups on the Side Chains: Synthesis, Chemical Modification and Self-Assembly in Aqueous Media. Polymers (Basel) 2024; 16:1284. [PMID: 38732753 PMCID: PMC11085793 DOI: 10.3390/polym16091284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
The synthesis of amphiphilic diblock and statistical (random) copolymers of poly(dimethylamino ethyl methacrylate) and poly((2-(diisopropylamino) ethyl methacrylate) using the reversible addition-fragmentation chain transfer polymerization technique (RAFT polymerization) is reported. The precursor copolymers were chemically modified to create derivative copolymers of polyelectrolyte and polyampholyte nature with novel solution properties. Moreover, their molecular and physicochemical characteristics, as well as their self-assembly in aqueous media as a function of molecular architecture and composition, are investigated by using size exclusion chromatography, spectroscopic characterization techniques and light scattering techniques. Furthermore, the behavior and properties of the obtained micelles and aggregates were studied, depending on the pH, temperature and ionic strength of the aqueous solutions. The response of the systems to changes in these parameters shows interesting behavior and new properties that are useful for their utilization as nanocarriers of pharmaceutical compounds.
Collapse
Affiliation(s)
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece;
| |
Collapse
|
2
|
Kim C, Kim T, Cho J. Selective Charge Carrier Transport and Bipolar Conduction in an Inorganic/Organic Bulk-Phase Composite: Optimization for Low-Temperature Thermoelectric Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5036-5049. [PMID: 38105489 PMCID: PMC10836361 DOI: 10.1021/acsami.3c11235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/22/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Abundant conducting polymers are promising organic substances for low-temperature thermoelectric applications due to their inherently low thermal conductivities. By introducing a conducting polymer filler (PEDOT:PSS─poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonic acid)) into a representative inorganic thermoelectric matrix (Bi2Te3), a bulk-phase composite (i.e., inorganic matrix/organic filler) for low-temperature thermoelectric applications is proposed. This composite hosts an interfacial energy barrier between the inorganic and organic components, facilitating controlled carrier transport based on its energy level, known as the energy filtering effect, and thus the composite exhibits a highly improved Seebeck coefficient compared to pristine Bi2Te3. The composite also displays a completely different temperature dependence on the Seebeck coefficient from Bi2Te3 due to its distinct bipolar conduction tendency. By regulation of the energy filtering effect and bipolar conduction tendency, the composite undergoes noticeable variations in the Seebeck coefficient, resulting in a significantly enhanced power factor. Furthermore, the composite shows a substantially reduced thermal conductivity compared to Bi2Te3 because it has lower carrier/lattice thermal contributions, possibly attributed to its high carrier/phonon scattering probabilities. Owing to the superior power factor and reduced thermal conductivity, the composite exhibits markedly enhanced thermoelectric performance, achieving a maximum figure of merit of approximately 1.26 at 380 K and an average figure of merit of approximately 1.23 in the temperature range of 323-423 K. The performance of the composite is competitive with previously reported n-type Bi2Te3 binary or ternary analogues. Therefore, the composite is highly expected to be a promising n-type counterpart of p-type Bi2Te3-based alloys for various low-temperature thermoelectric applications.
Collapse
Affiliation(s)
- Cham Kim
- Division
of Nanotechnology, Daegu Gyeongbuk Institute
of Science and Technology (DGIST), 333 Techno Jungang-daero, Daegu 42988, Republic of Korea
| | - Taewook Kim
- Department
of Energy Chemical Engineering, Kyungpook
National University (KNU), 2559 Gyeongsang-daero, Sangju 37224, Republic
of Korea
| | - Jaehun Cho
- Division
of Nanotechnology, Daegu Gyeongbuk Institute
of Science and Technology (DGIST), 333 Techno Jungang-daero, Daegu 42988, Republic of Korea
| |
Collapse
|
3
|
Ntente C, Iatridi Z, Theodoropoulou M, Bokias G, Tsakiroglou C. Anionic amphiphilic copolymers as potential agents for enhanced oil recovery. REACT FUNCT POLYM 2023. [DOI: 10.1016/j.reactfunctpolym.2023.105521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
4
|
Customizing polyelectrolytes through hydrophobic grafting. Adv Colloid Interface Sci 2022; 306:102721. [DOI: 10.1016/j.cis.2022.102721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 11/22/2022]
|
5
|
Shingdilwar S, Dolui S, Banerjee S. Facile Fabrication of Functional Mesoporous Polymer Nanospheres for CO 2 Capture. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shashikant Shingdilwar
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| | - Subrata Dolui
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| | - Sanjib Banerjee
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| |
Collapse
|
6
|
Shingdilwar S, Kumar D, Sahu B, Banerjee S. Straightforward synthesis of multifunctional porous polymer nanomaterials for CO 2 capture and removal of contaminants. Polym Chem 2022. [DOI: 10.1039/d2py00067a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A straightforward synthesis of multifunctional mesoporous polymer nanomaterials suitable for the removal of contaminants and CO2 capture is reported.
Collapse
Affiliation(s)
- Shashikant Shingdilwar
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| | - Devendra Kumar
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| | - Bhanendra Sahu
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| | - Sanjib Banerjee
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur 492015, Chhattisgarh, India
| |
Collapse
|
7
|
Nicolas M, Beyou E, Fumagalli M. Two-step synthesis of polystyrene sulfonate based copolymers bearing pendant primary amines. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
8
|
Lainioti GC, Tsapikouni A, Druvari D, Avramidis P, Prevedouros I, Glaropoulos A, Kallitsis JK. Environmentally Friendly Cross-Linked Antifouling Coatings Based on Dual Antimicrobial Action. Int J Mol Sci 2021; 22:ijms22094658. [PMID: 33925039 PMCID: PMC8125455 DOI: 10.3390/ijms22094658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022] Open
Abstract
The synthesis of environmentally friendly antimicrobial polymeric coatings, especially in the case of aquaculture, that inhibit the growth of bio-deposits is a very important issue that will contribute to the cost reduction of nets’ cleaning process as well as the protection of the submarine wealth from the biostatic substances used so far. In the present work, the antimicrobial polymers P(SSAmC16-co-VBCHAMx) and the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) were synthesized, bearing quaternary ammonium compounds, electrostatically bound and covalently attached at the same polymer chain. The combination of the two types is of particular importance, as it can provide effective antimicrobial polymeric materials with self-polishing capabilities as a result of the released nature of the antimicrobial, in combination with the permanent local action of the immobilized species. The cross-linking reaction of the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) with the homopolymer polyacrylic acid (PAA) was tested at 120 °C in terms of the equivalent ratio between epoxy and carboxyl groups. The synthesized polymers were further used for the coating of aquaculture nets and tested in terms of antifouling efficiency in lab and scale-up conditions. Uncoated nets were also used in all applications for comparison reasons. The coated nets performed efficiently for 35 days in lab-scale and 66 days in scale-up conditions, showing a high antifouling activity in both fields compared to the uncoated nets.
Collapse
Affiliation(s)
- Georgia C. Lainioti
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
- Correspondence: ; Tel.: +30-261-099-7121
| | - Anthi Tsapikouni
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
| | - Denisa Druvari
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
| | - Pavlos Avramidis
- Department of Geology, University of Patras, GR–26504 Patras, Achaia, Greece; (P.A.); (I.P.)
| | - Ioannis Prevedouros
- Department of Geology, University of Patras, GR–26504 Patras, Achaia, Greece; (P.A.); (I.P.)
| | | | - Joannis K. Kallitsis
- Department of Chemistry, University of Patras, GR–26504 Patras, Achaia, Greece; (A.T.); (D.D.); (J.K.K.)
| |
Collapse
|
9
|
Synthesis of Polystyrene-Based Cationic Nanomaterials with Pro-Oxidant Cytotoxic Activity on Etoposide-Resistant Neuroblastoma Cells. NANOMATERIALS 2021; 11:nano11040977. [PMID: 33920180 PMCID: PMC8069339 DOI: 10.3390/nano11040977] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/05/2021] [Accepted: 04/08/2021] [Indexed: 01/08/2023]
Abstract
Drug resistance is a multifactorial phenomenon that limits the action of antibiotics and chemotherapeutics. Therefore, it is essential to develop new therapeutic strategies capable of inducing cytotoxic effects circumventing chemoresistance. In this regard, the employment of natural and synthetic cationic peptides and polymers has given satisfactory results both in microbiology, as antibacterial agents, but also in the oncological field, resulting in effective treatment against several tumors, including neuroblastoma (NB). To this end, two polystyrene-based copolymers (P5, P7), containing primary ammonium groups, were herein synthetized and tested on etoposide-sensitive (HTLA-230) and etoposide-resistant (HTLA-ER) NB cells. Both copolymers were water-soluble and showed a positive surface charge due to nitrogen atoms, which resulted in protonation in the whole physiological pH range. Furthermore, P5 and P7 exhibited stability in solution, excellent buffer capacity, and nanosized particles, and they were able to reduce NB cell viability in a concentration-dependent way. Interestingly, a significant increase in reactive oxygen species (ROS) production was observed in both NB cell populations treated with P5 or P7, establishing for both copolymers an unequivocal correlation between cytotoxicity and ROS generation. Therefore, P5 and P7 could be promising template macromolecules for the development of new chemotherapeutic agents able to fight NB chemoresistance.
Collapse
|
10
|
Gómez IJ, Vázquez Sulleiro M, Mantione D, Alegret N. Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art. Polymers (Basel) 2021; 13:745. [PMID: 33673680 PMCID: PMC7957790 DOI: 10.3390/polym13050745] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Carbon nanomaterials are at the forefront of the newest technologies of the third millennium, and together with conductive polymers, represent a vast area of indispensable knowledge for developing the devices of tomorrow. This review focusses on the most recent advances in the field of conductive nanotechnology, which combines the properties of carbon nanomaterials with conjugated polymers. Hybrid materials resulting from the embedding of carbon nanotubes, carbon dots and graphene derivatives are taken into consideration and fully explored, with discussion of the most recent literature. An introduction into the three most widely used conductive polymers and a final section about the most recent biological results obtained using carbon nanotube hybrids will complete this overview of these innovative and beyond belief materials.
Collapse
Affiliation(s)
- I. Jénnifer Gómez
- Department of Condensed Matter Physics, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic;
| | | | - Daniele Mantione
- Laboratoire de Chimie des Polymères Organiques (LCPO-UMR 5629), Université de Bordeaux, Bordeaux INP, CNRS F, 33607 Pessac, France
| | - Nuria Alegret
- POLYMAT and Departamento de Química Aplicada, University of the Basque Country, UPV/EHU, 20018 Donostia-San Sebastián, Spain
| |
Collapse
|
11
|
Positively Charged Polymers as Promising Devices against Multidrug Resistant Gram-Negative Bacteria: A Review. Polymers (Basel) 2020; 12:polym12051195. [PMID: 32456255 PMCID: PMC7285334 DOI: 10.3390/polym12051195] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 01/13/2023] Open
Abstract
Antibiotic resistance has increased markedly in Gram-negative bacteria, causing severe infections intractable with traditional drugs and amplifying mortality and healthcare costs. Consequently, to find novel antimicrobial compounds, active on multidrug resistant bacteria, is mandatory. In this regard, cationic antimicrobial peptides (CAMPs)—able to kill pathogens on contact—could represent an appealing solution. However, low selectivity, hemolytic toxicity and cost of manufacturing, hamper their massive clinical application. In the recent years—starting from CAMPs as template molecules—less toxic and lower-cost synthetic mimics of CAMPs, including cationic peptides, polymers and dendrimers, have been developed. Although the pending issue of hemolytic toxicity and biodegradability is still left not completely solved, cationic antimicrobial polymers (CAPs), compared to small drug molecules, thanks to their high molecular weight, own appreciable selectivity, reduced toxicity toward eukaryotic cells, more long-term activity, stability and non-volatility. With this background, an updated overview concerning the main manufactured types of CAPs, active on Gram-negative bacteria, is herein reported, including synthetic procedure and action’s mechanism. Information about their structures, antibacterial activity, advantages and drawbacks, was reported in the form of tables, which allow faster consultation and quicker learning concerning current CAPs state of the art, in order not to retrace reviews already available.
Collapse
|
12
|
Sakunpongpitiporn P, Phasuksom K, Paradee N, Sirivat A. Facile synthesis of highly conductive PEDOT:PSS via surfactant templates. RSC Adv 2019; 9:6363-6378. [PMID: 35517248 PMCID: PMC9060941 DOI: 10.1039/c8ra08801b] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/06/2019] [Indexed: 01/11/2023] Open
Abstract
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) nanoparticles in powder form with high electrical conductivity were synthesized via chemical oxidative polymerization. In addition, the effects of EDOT : PSS weight ratio, EDOT : Na2S2O8 mole ratio, and surfactant concentration and type, namely hexadecyltrimethylammonium bromide (CTAB), sodium dodecylsulfate (SDS), and polyoxyethylene octyl phenyl ether (Triton X-100) on the properties of PEDOT:PSS were investigated. For the effect of EDOT : PSS weight ratio, at the EDOT : Na2S2O8 mole ratio of 1 : 1, the EDOT : PSS weight ratio of 1 : 11 was the optimal condition to obtain electrical conductivity of 999.74 ± 10.86 S cm-1 due to the high amount of PSS- and SO4 2- available to interact with the PEDOT chain with a low % PSSNa. For the effect of EDOT : Na2S2O8 mole ratio, at the EDOT : PSS weight ratio of 1 : 11, the EDOT : Na2S2O8 mole ratio of 1 : 2 was the best condition as it provided the highest dopant (PSS- and SO4 2-) amount, while the % PSSNa was relatively low. For the effect of surfactant type and concentration, at the EDOT : PSS weight ratio of 1 : 11 and EDOT : Na2S2O8 mole ratio of 1 : 2, Triton X-100 at 2.5CMC provided electrical conductivity higher than with CTAB and SDS. The thermal stability of PEDOT:PSS obtained from various conditions was investigated, and PEDOT:PSS without surfactant showed the highest thermal stability since it produced the highest char yield. In this study, the highest electrical conductivity of PEDOT:PSS, which was obtained in the presence of Triton X-100 to reduce the PSSNa amount, was 1879.49 ± 13.87 S cm-1, the highest value reported to date.
Collapse
Affiliation(s)
- Phimchanok Sakunpongpitiporn
- The Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University Bangkok 10330 Thailand
| | - Katesara Phasuksom
- The Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University Bangkok 10330 Thailand
| | - Nophawan Paradee
- Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi Bangkok 10140 Thailand
| | - Anuvat Sirivat
- The Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University Bangkok 10330 Thailand
| |
Collapse
|
13
|
Liu S, Zou Y, Terasvirta A. Fast query algorithm for social network data based on association features. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2018. [DOI: 10.3233/jifs-169736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Shuying Liu
- School of Computer Science, Xianyang Normal University, Xianyang, China
| | - Yanfei Zou
- School of Computer Science, Xianyang Normal University, Xianyang, China
| | - A.M. Terasvirta
- Department of Mathematics, Faculty of Science, Zagazig University, Zagazig, Egypt
| |
Collapse
|
14
|
Inhibition mechanism of the radical inhibitors to alkaline degradation of anion exchange membranes. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
15
|
Self-assembly behavior of amphiphilic polyelectrolyte with ultrahigh charge density. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4313-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
16
|
Ye N, Xu Y, Zhang D, Yang Y, Yang J, He R. High alkaline resistance of benzyl-triethylammonium functionalized anion exchange membranes with different pendants. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
17
|
Facile synthesis of cauliflower-like hydrophobically modified polyacrylamide nanospheres by aerosol-photopolymerization. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.08.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
18
|
Karamitrou M, Sarpaki E, Bokias G. Surfactant-directed morphology of cross-linked styrene- or vinylbenzyl chloride-based materials. J Appl Polym Sci 2016. [DOI: 10.1002/app.43297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Melpo Karamitrou
- Department of Chemistry; University of Patras; Patras GR 26504 Greece
- Institute of Chemical Engineering Sciences (ICE/HT-FORTH); Rio-Patras GR 26504 Greece
| | - Efi Sarpaki
- Department of Chemistry; University of Patras; Patras GR 26504 Greece
| | - Georgios Bokias
- Department of Chemistry; University of Patras; Patras GR 26504 Greece
- Institute of Chemical Engineering Sciences (ICE/HT-FORTH); Rio-Patras GR 26504 Greece
| |
Collapse
|
19
|
Koromilas ND, Lainioti GC, Vasilopoulos G, Vantarakis A, Kallitsis JK. Synthesis of antimicrobial block copolymers bearing immobilized bacteriostatic groups. Polym Chem 2016. [DOI: 10.1039/c6py00553e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Antimicrobial block copolymers bearing covalently bonded quaternized ammonium groups were synthesized through atom transfer radical polymerization (ATRP). Moreover, a new class of antimicrobial block copolymers were designed combining two types of biocide incorporation into one system (both contact-based and release-based mechanisms).
Collapse
Affiliation(s)
| | - G. Ch. Lainioti
- Department of Chemistry
- University of Patras
- Patras
- Greece
- FORTH/ICE-HT
| | - G. Vasilopoulos
- Environmental Microbiology
- Department of Public Health
- Medical School
- University of Patras
- Greece
| | - A. Vantarakis
- Environmental Microbiology
- Department of Public Health
- Medical School
- University of Patras
- Greece
| | - J. K. Kallitsis
- Department of Chemistry
- University of Patras
- Patras
- Greece
- FORTH/ICE-HT
| |
Collapse
|
20
|
Kougia E, Tselepi M, Vasilopoulos G, Lainioti GC, Koromilas ND, Druvari D, Bokias G, Vantarakis A, Kallitsis JK. Evaluation of Antimicrobial Efficiency of New Polymers Comprised by Covalently Attached and/or Electrostatically Bound Bacteriostatic Species, Based on Quaternary Ammonium Compounds. Molecules 2015; 20:21313-27. [PMID: 26633329 PMCID: PMC6332343 DOI: 10.3390/molecules201219768] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/22/2015] [Accepted: 11/24/2015] [Indexed: 11/26/2022] Open
Abstract
In the present work a detailed study of new bacteriostatic copolymers with quaternized ammonium groups introduced in the polymer chain through covalent attachment or electrostatic interaction, was performed. Different copolymers have been considered since beside the active species, the hydrophobic/hydrophilic nature of the co-monomer was also evaluated in the case of covalently attached bacteriostatic groups, aiming at achieving permanent antibacterial activity. Homopolymers with quaternized ammonium/phosphonium groups were also tested for comparison reasons. The antimicrobial activity of the synthesized polymers after 3 and 24 h of exposure at 4 and 22 °C was investigated on cultures of Gram-negative (P. aeruginosa, E. coli) and Gram-positive (S. aureus, E. faecalis) bacteria. It was found that the combination of the hydrophilic monomer acrylic acid (AA), at low contents, with the covalently attached bacteriostatic group vinyl benzyl dimethylhexadecylammonium chloride (VBCHAM) in the copolymer P(AA-co-VBCHAM88), resulted in a high bacteriostatic activity against P. aeruginosa and E. faecalis (6 log reduction in certain cases). Moreover, the combination of covalently attached VBCHAM units with electrostatically bound cetyltrimethylammonium 4-styrene sulfonate (SSAmC16) units in the P(SSAmC16-co-VBCHAMx) copolymers led to efficient antimicrobial materials, especially against Gram-positive bacteria, where a log reduction between 4.9 and 6.2 was verified. These materials remain remarkably efficient even when they are incorporated in polysulfone membranes.
Collapse
Affiliation(s)
- Efstathia Kougia
- Environmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece.
| | - Maria Tselepi
- Environmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece.
| | - Gavriil Vasilopoulos
- Environmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece.
| | | | - Nikos D Koromilas
- Department of Chemistry, University of Patras, 26504 Patras, Greece.
| | - Denisa Druvari
- Department of Chemistry, University of Patras, 26504 Patras, Greece.
| | - Georgios Bokias
- Department of Chemistry, University of Patras, 26504 Patras, Greece.
| | - Apostolos Vantarakis
- Environmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece.
| | | |
Collapse
|
21
|
Shakhvorostov A, Nurakhmetova Z, Tatykhanova G, Nuraje N, Kudaibergenov S. Synthesis and characterization of hydrophobically modified polymeric betaines. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2015. [DOI: 10.15328/cb645] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
22
|
Li H, Wang W, Li C, Tan J, Yin D, Zhang H, Zhang B, Yin C, Zhang Q. Synthesis and characterization of brush-like multigraft copolymers PnBA-g-PMMA by a combination of emulsion AGET ATRP and emulsion polymerization. J Colloid Interface Sci 2015; 453:226-236. [PMID: 25988487 DOI: 10.1016/j.jcis.2015.04.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
Abstract
In this paper, poly(n-butyl acrylate)-g-poly(methyl methacrylate) multigraft copolymers were synthesized by macromonomer technique and miniemulsion copolymerization. The PMMA macromonomers were obtained by an activator generated by electron transfer atom transfer radical polymerization (AGET ATRP) in emulsion system and subsequent allylation. Then the copolymerization of different macromonomers with nBA was carried out in miniemulsion system, obtaining multigraft copolymers with high molecular weight. The latex particles and distribution of emulsion AGET ATRP and miniemulsion copolymerization were characterized using laser light scattering. The molecular weight and polydispersity indices of macromonomers and multigraft copolymers were analyzed by gel permeation chromatography, and the number-average molecular weight range is 187,600-554,800 g/mol for PnBA-g-PMMA copolymers. In addition, the structural characteristics of macromonomer and brush-like copolymers were determined by infrared spectra and (1)H nuclear magnetic resonance spectroscopy. The thermal performance of brush-like copolymers were characterized by differential scanning calorimetry and thermogravimetric analysis. Atomic force microscopy results showed that the degree of microphase separation was varying with increasing PMMA content in PnBA-g-PMMA. The dynamic rheometer analysis revealed that multigraft copolymer with PMMA content of 31.4% exhibited good elastomeric properties to function as a TPE. These multigraft copolymers show a promising low cost and environmental friendly thermoplastic elastomer.
Collapse
Affiliation(s)
- Hui Li
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenwen Wang
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Chunmei Li
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jiaojun Tan
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Dezhong Yin
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hepeng Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Baoliang Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Changjie Yin
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qiuyu Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China.
| |
Collapse
|
23
|
Bekiari V, Nikolaou K, Koromilas N, Lainioti G, Avramidis P, Hotos G, Kallitsis JK, Bokias G. Release of Polymeric Biocides from Synthetic Matrices for Marine Biofouling Applications. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.aaspro.2015.03.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Suresha PR, Badiger MV, Wolf BA. Polyelectrolytes in dilute solution: viscometric access to coil dimensions and salt effects. RSC Adv 2015. [DOI: 10.1039/c5ra01376c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Viscometric and light scattering radii in water containing 0.25 mol NaCl per liter as a function of the reduced polymer concentration.
Collapse
Affiliation(s)
- P. R. Suresha
- Polymer Science and Engineering Division
- National Chemical Laboratory (NCL)
- Pune-411 008
- India
| | - Manohar V. Badiger
- Polymer Science and Engineering Division
- National Chemical Laboratory (NCL)
- Pune-411 008
- India
- Institut für Physikalische Chemie
| | - Bernhard A. Wolf
- Institut für Physikalische Chemie
- Jakob Welder-Weg 11
- D-55099 Universität Mainz
- Germany
| |
Collapse
|
25
|
Wang W, Wang W, Lu X, Bobade S, Chen J, Kang NG, Zhang Q, Mays J. Synthesis and Characterization of Comb and Centipede Multigraft Copolymers PnBA-g-PS with High Molecular Weight Using Miniemulsion Polymerization. Macromolecules 2014. [DOI: 10.1021/ma501866t] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Wenwen Wang
- Key Laboratory of
Applied Physics and Chemistry in Space of Ministry of Education, School
of Science, Northwestern Polytechnical University, Xi’an 710072, China
| | - Weiyu Wang
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Xinyi Lu
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Sachin Bobade
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Nam-Goo Kang
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Qiuyu Zhang
- Key Laboratory of
Applied Physics and Chemistry in Space of Ministry of Education, School
of Science, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jimmy Mays
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| |
Collapse
|
26
|
Koromilas ND, Lainioti GC, Gialeli C, Barbouri D, Kouravelou KB, Karamanos NK, Voyiatzis GA, Kallitsis JK. Preparation and toxicological assessment of functionalized carbon nanotube-polymer hybrids. PLoS One 2014; 9:e107029. [PMID: 25229474 PMCID: PMC4167694 DOI: 10.1371/journal.pone.0107029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/05/2014] [Indexed: 11/28/2022] Open
Abstract
Novel Carbon Nanotube-Polymer Hybrids were synthesized as potential materials for the development of membranes for water treatment applications in the field of Membrane Bioreactors (MBRs). Due to the toxicological concerns regarding the use of nanomaterials in water treatment as well as the rising demand for safe drinking water to protect public health, we studied the functionalization of MWCNTs and Thin-MWCNTs as to control their properties and increase their ability of embedment into porous anisotropic polymeric membranes. Following the growth of the hydrophilic monomer on the surface of the properly functionalized CNTs, that act as initiator for the controlled radical polymerization (ATRP) of sodium styrene sulfonate (SSNa), the antimicrobial quaternized phosphonium and ammonium salts were attached on CNTs-g-PSSNa through non-covalent bonding. In another approach the covalent attachment of quaternized ammonium polymeric moieties of acrylic acid-vinyl benzyl chloride copolymers with N,N-dimethylhexadecylamine (P(AA12-co-VBCHAM)) on functionalized CNTs has also been attempted. Finally, the toxicological assessment in terms of cell viability and cell morphological changes revealed that surface characteristics play a major role in the biological response of functionalized CNTs.
Collapse
Affiliation(s)
- Nikos D. Koromilas
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
| | - Georgia Ch. Lainioti
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
| | - Chrisostomi Gialeli
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
| | - Despoina Barbouri
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
| | | | - Nikos K. Karamanos
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
- * E-mail: (JKK); (NKK)
| | - George A. Voyiatzis
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
| | - Joannis K. Kallitsis
- Department of Chemistry, University of Patras, Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH) / Institute of Chemical Engineering Sciences (ICE-HT), Rio-Patras, Greece
- * E-mail: (JKK); (NKK)
| |
Collapse
|