1
|
Pepe A, Guevara MG, Abraham GA, Caracciolo PC. Lysine-oligoether-modified electrospun poly(carbonate urethane) matrices for improving hemocompatibility response. Polym J 2021. [DOI: 10.1038/s41428-021-00534-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
2
|
|
3
|
Yaghoubi Z, Parsa JB. Preparation of thermo-responsive PNIPAAm-MWCNT membranes and evaluation of its antifouling properties in dairy wastewater. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109779. [PMID: 31349494 DOI: 10.1016/j.msec.2019.109779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/10/2019] [Accepted: 05/19/2019] [Indexed: 01/08/2023]
Abstract
A novel MWCNT-PNIPAAm nanocomposite membrane was developed with an excellent cleaning efficiency of thermo-responsive surface. The thermo-responsive N-isopropyle acryleamide (NIPAAm) monomer was polymerized on the surface of MWCNT via free radical polymerization. The prepared MWCNT-PNIPAAm nanocomposite was characterized by FTIR, SEM and TGA analyses. Various amounts of the prepared nanocomposite were incorporated into the membrane matrix by the physical blending method. The resultant membranes showed better surface wettability and pure water flux compared to pristine Polyethersulfone (PES) membrane. Furthermore, after filtration, the COD value of dairy wastewater was reduced to around 90% for all membranes. The thermo-responsive cleaning method was employed to investigate the cleaning efficiency of MWCNT-PNIPAAm membrane for dairy wastewater. The 99.9% flux recovery ratio was obtained for MWCNT-PNIPAAm-0.05% membranes. All these results confirmed that the presence of MWCNT-PNIPAAm nanocomposite in the membrane matrix improves the membrane hydrophilicity and antifouling properties.
Collapse
Affiliation(s)
- Zeynab Yaghoubi
- Department of Applied Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174-38683, Iran
| | - Jalal Basiri Parsa
- Department of Applied Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 65174-38683, Iran.
| |
Collapse
|
4
|
Maruyama M, Shibuya K. ε-Polylysine-based thermo-responsive adsorbents for immunoglobulin adsorption-desorption under mild conditions. Biomater Sci 2017. [PMID: 28632279 DOI: 10.1039/c7bm00390k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Thermo-responsive adsorbents for immunoglobulin G (IgG) employing ε-polylysine (EPL) as a polymer backbone were developed. The introduction of mercaptoethylpyridine (MEP) as an IgG-binding ligand and hydrophobization of side chains afforded thermo-responsive IgG adsorbents, whose thermo-responsive IgG desorption ratio was up to 88% (EPL/MEP derivative 3m). The changes in surface densities of active MEP groups, which are caused by thermal conformational changes of the adsorbents, play key roles for IgG desorption. Although a trade-off of IgG adsorption capacity and IgG desorption ratio was observed, the present study offers a novel molecular design for thermo-responsive adsorbents with high synthetic accessibility and potentially low toxicity.
Collapse
Affiliation(s)
- Masashi Maruyama
- Center for Technology Innovation - Materials, Research & Development Group, Hitachi Ltd., 7-1-1 Omika, Hitachi City, Ibaraki 319-1292, Japan.
| | | |
Collapse
|
5
|
Tang Z, Wilson P, Kempe K, Chen H, Haddleton DM. Reversible Regulation of Thermoresponsive Property of Dithiomaleimide-Containing Copolymers via Sequential Thiol Exchange Reactions. ACS Macro Lett 2016; 5:709-713. [PMID: 35614659 DOI: 10.1021/acsmacrolett.6b00310] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The facile and efficient functionalization of thermoresponsive polymers based on sequential, reversible thiol-exchange reactions is reported. Well-defined dithiomaleimide-containing polymers have been synthesized via Cu(0)-mediated SET-LRP and characterized by 1H NMR and size exclusion chromatography (SEC). The resulting thermosensitive copolymers were subsequently reacted with various thiols to demonstrate the applicability of the strategy, and the thiol-exchange reaction was found to be very fast and efficient. The cloud point of the prepared copolymers can be continually and reversibly tuned, and desirable functionality can be dynamically exchanged upon sequential addition of functional thiol reagents. Through the substitution by thioglucose, an ON-to-OFF switch for fluorescence of the copolymers along with the generation of a glycopolymer was achieved.
Collapse
Affiliation(s)
- Zengchao Tang
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, United Kingdom
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, PR China
| | - Paul Wilson
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, United Kingdom
| | - Kristian Kempe
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, United Kingdom
| | - Hong Chen
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, PR China
| | - David M. Haddleton
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, United Kingdom
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou 215123, Jiangsu, PR China
| |
Collapse
|
6
|
Cross MC, Toomey RG, Gallant ND. Protein-surface interactions on stimuli-responsive polymeric biomaterials. ACTA ACUST UNITED AC 2016; 11:022002. [PMID: 26942693 DOI: 10.1088/1748-6041/11/2/022002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Responsive surfaces: a review of the dependence of protein adsorption on the reversible volume phase transition in stimuli-responsive polymers. Specifically addressed are a widely studied subset: thermoresponsive polymers. Findings are also generalizable to other materials which undergo a similarly reversible volume phase transition. As of 2015, over 100,000 articles have been published on stimuli-responsive polymers and many more on protein-biomaterial interactions. Significantly, fewer than 100 of these have focused specifically on protein interactions with stimuli-responsive polymers. These report a clear trend of increased protein adsorption in the collapsed state compared to the swollen state. This control over protein interactions makes stimuli-responsive polymers highly useful in biomedical applications such as wound repair scaffolds, on-demand drug delivery, and antifouling surfaces. Outstanding questions are whether the protein adsorption is reversible with the volume phase transition and whether there is a time-dependence. A clear understanding of protein interactions with stimuli-responsive polymers will advance theoretical models, experimental results, and biomedical applications.
Collapse
Affiliation(s)
- Michael C Cross
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
| | | | | |
Collapse
|
7
|
Kroning A, Furchner A, Aulich D, Bittrich E, Rauch S, Uhlmann P, Eichhorn KJ, Seeber M, Luzinov I, Kilbey SM, Lokitz BS, Minko S, Hinrichs K. In Situ Infrared Ellipsometry for Protein Adsorption Studies on Ultrathin Smart Polymer Brushes in Aqueous Environment. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12430-12439. [PMID: 25668395 DOI: 10.1021/am5075997] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The protein-adsorbing and -repelling properties of various smart nanometer-thin polymer brushes containing poly(N-isopropylacrylamide) and poly(acrylic acid) with high potential for biosensing and biomedical applications are studied by in situ infrared-spectroscopic ellipsometry (IRSE). IRSE is a highly sensitive nondestructive technique that allows protein adsorption on polymer brushes to be investigated in an aqueous environment as external stimuli, such as temperature and pH, are varied. These changes are relevant to conditions for regulation of protein adsorption and desorption for biotechnology, biocatalysis, and bioanalytical applications. Here brushes are used as model surfaces for controlling protein adsorption of human serum albumin and human fibrinogen. The important finding of this work is that IRSE in the in situ experiments in protein solutions can distinguish between contributions of polymer brushes and proteins. The vibrational bands of the polymers provide insights into the hydration state of the brushes, whereas the protein-specific amide bands are related to changes of the protein secondary structure.
Collapse
Affiliation(s)
- Annika Kroning
- ‡Leibniz-Institut für Analytische Wissenschaften - ISAS - e. V., Schwarzschildstraße 8, 12489 Berlin, Germany
| | - Andreas Furchner
- ‡Leibniz-Institut für Analytische Wissenschaften - ISAS - e. V., Schwarzschildstraße 8, 12489 Berlin, Germany
| | - Dennis Aulich
- ‡Leibniz-Institut für Analytische Wissenschaften - ISAS - e. V., Schwarzschildstraße 8, 12489 Berlin, Germany
| | - Eva Bittrich
- §Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069 Dresden, Germany
| | - Sebastian Rauch
- §Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069 Dresden, Germany
| | - Petra Uhlmann
- §Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069 Dresden, Germany
| | - Klaus-Jochen Eichhorn
- §Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069 Dresden, Germany
| | - Michael Seeber
- ⊥School of Materials Science and Engineering Clemson University, 161 Sirrine Hall, Clemson, South Carolina 29634-0971, United States
| | - Igor Luzinov
- ⊥School of Materials Science and Engineering Clemson University, 161 Sirrine Hall, Clemson, South Carolina 29634-0971, United States
| | - S Michael Kilbey
- ∥Departments of Chemistry and of Chemical Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Bradley S Lokitz
- #Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sergiy Minko
- ∇Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Karsten Hinrichs
- ‡Leibniz-Institut für Analytische Wissenschaften - ISAS - e. V., Schwarzschildstraße 8, 12489 Berlin, Germany
| |
Collapse
|
8
|
Liu Q, Li D, Zhan W, Luan Y, Du H, Liu X, Brash JL, Chen H. Surfaces having dual affinity for plasminogen and tissue plasminogen activator: in situ plasmin generation and clot lysis. J Mater Chem B 2015; 3:6939-6944. [DOI: 10.1039/c5tb01308a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In situ activation of a surface-integrated zymogen was achieved by introducing affinity ligands for both the zymogen and its activator.
Collapse
Affiliation(s)
- Qi Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Dan Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Wenjun Zhan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Yafei Luan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Hui Du
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Xiaoli Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - John L. Brash
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| | - Hong Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- P. R. China
| |
Collapse
|