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Entirely S-protected thiolated hydroxyethylcellulose: Design of a dual cross-linking approach for hydrogels. Eur J Pharm Biopharm 2022; 181:292-299. [PMID: 36427674 DOI: 10.1016/j.ejpb.2022.11.018] [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: 09/21/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022]
Abstract
AIM The aim of this study was the synthesis and evaluation of entirely S-protected thiolated hydroxyethylcellulose (HEC) with low and high viscosity, as well as thiolated poly-L-lysine (poly-L-Lys) used as dual-acting ionic as well as thiol-disulfide exchange mediated cross-linking hydrogel. METHODS Bis(mercaptosuccinic acid) was covalently attached to low and high viscous HECs via Fisher esterification, obtaining S-protected polymers. Poly-L-Lys-cysteine was synthesized via amidation of poly-L-Lys-HBr with cysteine (Cys). Thiolated polymers were examined in terms of cytotoxicity and rheological behavior of hydrogels containing these thiomers was evaluated with a cone-plate rheometer. RESULTS Thiomers showed less cytotoxicity compared to the corresponding unmodified polymers. Rheological studies showed that cross-linking occurred between the two polymers via thiol-disulfide exchange reactions facilitated by the complementary charges. Employing poly-L-Lys-Cys in a concentration of either 0.5 or 5% (m/v) resulted in a 34.5-fold or 17.3-fold as well as a 53.6-fold or 29.6-fold improvement in dynamic viscosity within 5 min at 37 °C on S-protected thiolated low and high viscous HEC, compared to the corresponding unmodified HECs, respectively. CONCLUSION By the combination of anionic S-protected thiolated polymers with a cationic thiolated polymer, dual-acting hydrogels exhibiting a time dependent increase in viscosity can be designed.
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Kamp J, Emonds S, Wessling M. Designing tubular composite membranes of polyelectrolyte multilayer on ceramic supports with nanofiltration and reverse osmosis transport properties. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118851] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li Z, Syed AA, Zhao P, Yang JC, Sharma R, Ensley TR, Matichak JD, Davydenko I, Jang SH, Hagan DJ, Marder SR, Van Stryland EW, Jen AKY. Cationic Polyelectrolyte for Anionic Cyanines: An Efficient Way To Translate Molecular Properties into Material Properties. J Am Chem Soc 2019; 141:17331-17336. [PMID: 31573193 DOI: 10.1021/jacs.9b08877] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this work, a new phosphonium-containing cationic polyelectrolyte (PE1) has been rationally designed and developed via a facile click-chemistry type postfunctionalization, which can form complexes with highly polarizable anionic cyanines to significantly reduce the strong and random cyanine-cyanine interactions (i.e., aggregation) in the solid-state. This material design strategy enables an efficient translation of the favorable molecular properties of cyanines into macroscopic material properties. One of such complexes exhibits a very large third-order susceptibility over 10-10 esu with low nonlinear optical loss suitable for all optical signal processing.
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Affiliation(s)
- Zhong'an Li
- Department of Materials Science and Engineering , University of Washington , Seattle , Washington 98195 , United States
| | - Akbar A Syed
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Peng Zhao
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Jeffrey C Yang
- Department of Materials Science and Engineering , University of Washington , Seattle , Washington 98195 , United States
| | - Rajesh Sharma
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Trenton R Ensley
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Jonathan D Matichak
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Iryna Davydenko
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Sei-Hum Jang
- Department of Materials Science and Engineering , University of Washington , Seattle , Washington 98195 , United States
| | - David J Hagan
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Seth R Marder
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Eric W Van Stryland
- CREOL, The College of Optics and Photonics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Alex K-Y Jen
- Department of Materials Science and Engineering , University of Washington , Seattle , Washington 98195 , United States.,Department of Chemistry , City University of Hong Kong , Kowloon , Hong Kong SAR
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Ciferri A, Crumbliss AL. The Assembling and Contraction Mechanisms of Striated Muscles. Front Chem 2018; 6:570. [PMID: 30555818 PMCID: PMC6284003 DOI: 10.3389/fchem.2018.00570] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/02/2018] [Indexed: 12/03/2022] Open
Abstract
A novel approach to the description of the assembly mechanism of functional biological structures is presented. The approach is based on the identification of fundamental self-assembling processes to which an additional structurization "engineered" by Nature to optimize functions is superimposed. Application of the approach to the structure and contraction of the striated muscle evidences a key role of the residual liquid crystallinity of a constrained structure and the alteration of the compatibility between the thin and thick filaments driven by ionic interactions. ATP hydrolysis boosts the relaxation process. A strong protein scaffold, engineered during the evolutionary process and based on the selective anchoring of coordinated filaments, directs a demixing tendency of the two filaments toward a sliding motion along the fiber axis. The Huxley-Hanson sliding filament hypothesis aimed to explain the contraction-relaxation function of the striated muscle, but does not offer any clue on the overall assembling mechanism of the myofibril.
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Affiliation(s)
- Alberto Ciferri
- Chemistry Department, Duke University, Durham, NC, United States
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Winter A, Schubert US. Synthesis and characterization of metallo-supramolecular polymers. Chem Soc Rev 2016; 45:5311-57. [PMID: 27218823 DOI: 10.1039/c6cs00182c] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The incorporation of metal centers into the backbone of polymers has led to the development of a broad range of organometallic and coordination compounds featuring properties that are relevant for potential applications in diverse areas of research, ranging from energy storage/conversion to bioactive or self-healing materials. In this review, the basic concepts and synthetic strategies leading to these types of materials as well as the scope of available characterization techniques will be summarized and discussed.
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Affiliation(s)
- Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
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Goossens K, Lava K, Bielawski CW, Binnemans K. Ionic Liquid Crystals: Versatile Materials. Chem Rev 2016; 116:4643-807. [PMID: 27088310 DOI: 10.1021/cr400334b] [Citation(s) in RCA: 426] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Review covers the recent developments (2005-2015) in the design, synthesis, characterization, and application of thermotropic ionic liquid crystals. It was designed to give a comprehensive overview of the "state-of-the-art" in the field. The discussion is focused on low molar mass and dendrimeric thermotropic ionic mesogens, as well as selected metal-containing compounds (metallomesogens), but some references to polymeric and/or lyotropic ionic liquid crystals and particularly to ionic liquids will also be provided. Although zwitterionic and mesoionic mesogens are also treated to some extent, emphasis will be directed toward liquid-crystalline materials consisting of organic cations and organic/inorganic anions that are not covalently bound but interact via electrostatic and other noncovalent interactions.
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Affiliation(s)
- Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Kathleen Lava
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium.,Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Koen Binnemans
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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Joseph N, Ahmadiannamini P, Hoogenboom R, Vankelecom IFJ. Layer-by-layer preparation of polyelectrolyte multilayer membranes for separation. Polym Chem 2014. [DOI: 10.1039/c3py01262j] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Furlan S, La Penna G. Metal ions and protons compete for ligand atoms in disordered peptides: Examples from computer simulations of copper binding to the prion tandem repeat. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lange AW, Herbert JM. Improving Generalized Born Models by Exploiting Connections to Polarizable Continuum Models. II. Corrections for Salt Effects. J Chem Theory Comput 2012; 8:4381-92. [PMID: 26605600 DOI: 10.1021/ct300493y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A previous analytical investigation of the generalized Born (GB) implicit solvation model is extended to solvents of nonzero ionic strength. The GB model with salt effects (GB-SE) is shown to resemble the Debye-Hückel-like screening model (DESMO), a polarizable continuum model (PCM) that we have recently developed for salty solutions. DESMO may be regarded either as a generalization of the conductor-like PCM (C-PCM) that extends C-PCM to electrolyte solutions or alternatively as a generalization of Debye-Hückel theory to arbitrary cavity shapes. The connection between GB-SE and DESMO suggests how the former can be modified to account for the exclusion of mobile ions from the cavity interior, an effect that is typically absent in GB-SE models. We propose two simple GB-SE models that are exact for a point charge in a spherical cavity and that introduce the ability to account, albeit approximately, for the finite size of the mobile ions. The accuracy of these new models is demonstrated by applications to both model systems and real proteins. These tests also demonstrate the accuracy of the DESMO approach, as compared to more sophisticated PCMs developed for electrolyte solutions.
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Affiliation(s)
- Adrian W Lange
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - John M Herbert
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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Yan J, Zhang X, Zhang X, Liu K, Li W, Wu P, Zhang A. Thermoresponsive Supramolecular Dendrimers via Host-Guest Interactions. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200320] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Iacomino G, Picariello G, D'Agostino L. DNA and nuclear aggregates of polyamines. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2012; 1823:1745-55. [PMID: 22705882 DOI: 10.1016/j.bbamcr.2012.05.033] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/26/2012] [Accepted: 05/17/2012] [Indexed: 12/13/2022]
Abstract
Polyamines (PAs) are linear polycations that are involved in many biological functions. Putrescine, spermidine and spermine are highly represented in the nucleus of eukaryotic cells and have been the subject of decades of extensive research. Nevertheless, their capability to modulate the structure and functions of DNA has not been fully elucidated. We found that polyamines self-assemble with phosphate ions in the cell nucleus and generate three forms of compounds referred to as Nuclear Aggregates of Polyamines (NAPs), which interact with genomic DNA. In an in vitro setting that mimics the nuclear environment, the assembly of PAs occurs within well-defined ratios, independent of the presence of the DNA template. Strict structural and functional analogies exist between the in vitro NAPs (ivNAPs) and their cellular homologues. Atomic force microscopy showed that ivNAPs, as theoretically predicted, have a cyclic structure, and in the presence of DNA, they form a tube-like arrangement around the double helix. Features of the interaction between ivNAPs and genomic DNA provide evidence for the decisive role of "natural" NAPs in regulating important aspects of DNA physiology, such as conformation, protection and packaging, thus suggesting a new vision of the functions that PAs accomplish in the cell nucleus.
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Affiliation(s)
- Giuseppe Iacomino
- Instituto di Scienze dell'Alimentazione, Consiglio Nazionale delle Riecerche, Avellino, Italy.
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Severa L, Jirásek M, Švec P, Teplý F, Révész Á, Schröder D, Koval D, Kašička V, Císařová I, Šaman D. Counterion-Induced Inversion of Conformer Stability of a [5]Helquat Dication. Chempluschem 2012. [DOI: 10.1002/cplu.201200009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Borguet YP, Tsarevsky NV. Low-catalyst concentration atom transfer radical polymerization of a phosphonium salt-type monomer. Polym Chem 2012. [DOI: 10.1039/c2py20303k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Parker Siburt CJ, Mietzner TA, Crumbliss AL. FbpA--a bacterial transferrin with more to offer. Biochim Biophys Acta Gen Subj 2011; 1820:379-92. [PMID: 21933698 DOI: 10.1016/j.bbagen.2011.09.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 08/25/2011] [Accepted: 09/02/2011] [Indexed: 01/26/2023]
Abstract
BACKGROUND Gram negative bacteria require iron for growth and virulence. It has been shown that certain pathogenic bacteria such as Neisseria gonorrhoeae possess a periplasmic protein called ferric binding protein (FbpA), which is a node in the transport of iron from the cell exterior to the cytosol. SCOPE OF REVIEW The relevant literature is reviewed which establishes the molecular mechanism of FbpA mediated iron transport across the periplasm to the inner membrane. MAJOR CONCLUSIONS Here we establish that FbpA may be considered a bacterial transferrin on structural and functional grounds. Data are presented which suggest a continuum whereby FbpA may be considered as a naked iron carrier, as well as a Fe-chelate carrier, and finally a member of the larger family of periplasmic binding proteins. GENERAL SIGNIFICANCE An investigation of the molecular mechanisms of action of FbpA as a member of the transferrin super family enhances our understanding of bacterial mechanisms for acquisition of the essential nutrient iron, as well as the modes of action of human transferrin, and may provide approaches to the control of pathogenic diseases. This article is part of a Special Issue entitled Transferrins: Molecular mechanisms of iron transport and disorders.
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Yan J, Li W, Liu K, Wu D, Chen F, Wu P, Zhang A. Thermoresponsive Supramolecular Dendronized Polymers. Chem Asian J 2011; 6:3260-9. [DOI: 10.1002/asia.201100528] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Indexed: 11/11/2022]
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Iacomino G, Picariello G, Sbrana F, Di Luccia A, Raiteri R, D’Agostino L. DNA is Wrapped by the Nuclear Aggregates of Polyamines: The Imaging Evidence. Biomacromolecules 2011; 12:1178-86. [DOI: 10.1021/bm101478j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Giuseppe Iacomino
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
| | - Gianluca Picariello
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
| | - Francesca Sbrana
- Dipartimento di Ingegneria Biofisica ed Elettronica, Università degli Studi di Genova, via all'Opera Pia 11a, 16145 Genova, Italy
| | - Aldo Di Luccia
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
- Dipartimento di Scienze degli Alimenti, Università degli Studi di Foggia, via Napoli 25, 71122 Foggia, Italy
| | - Roberto Raiteri
- Dipartimento di Ingegneria Biofisica ed Elettronica, Università degli Studi di Genova, via all'Opera Pia 11a, 16145 Genova, Italy
| | - Luciano D’Agostino
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
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