1
|
Elnagar MM, Liessem J, Im C, Mitoraj D, Kibler LA, Neumann C, Turchanin A, Leiter R, Kaiser U, Jacob T, Krivtsov I, Beranek R. Water-soluble ionic carbon nitride as unconventional stabilizer for highly catalytically active ultrafine gold nanoparticles. NANOSCALE 2023; 15:19268-19281. [PMID: 37990869 DOI: 10.1039/d3nr03375a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Ultrafine metal nanoparticles (NPs) hold promise for applications in many fields, including catalysis. However, ultrasmall NPs are typically prone to aggregation, which often leads to performance losses, such as severe deactivation in catalysis. Conventional stabilization strategies (e.g., immobilization, embedding, or surface modification by capping agents) are typically only partly effective and often lead to loss of catalytic activity. Herein, a novel type of stabilizers based on water-soluble ionic (K+ and Na+ containing) polymeric carbon nitride (i.e., K,Na-poly(heptazine imide) = K,Na-PHI) is reported that enables effective stabilization of highly catalytically active ultrafine (size of ∼2-3 nm) gold NPs. Experimental and theoretical comparative studies using different structural units of K,Na-PHI (i.e., cyanurate, melonate, cyamelurate) indicate that the presence of functionalized heptazine moieties is crucial for the synthesis and stabilization of small Au NPs. The K,Na-PHI-stabilized Au NPs exhibit remarkable dispersibility and outstanding stability even in solutions of high ionic strength, which is ascribed to more effective charge delocalization in the large heptazine units, resulting in more effective electrostatic stabilization of Au NPs. The outstanding catalytic performance of Au NPs stabilized by K,Na-PHI is demonstrated using the selective reduction of 4-nitrophenol to 4-aminophenol by NaBH4 as a model reaction, in which they outperform even the benchmark "naked" Au NPs electrostatically stabilized by excess NaBH4. This work thus establishes ionic carbon nitrides (PHI) as alternative capping agents enabling effective stabilization without compromising surface catalysis, and opens up a route for further developments in utilizing PHI-based stabilizers for the synthesis of high-performance nanocatalysts.
Collapse
Affiliation(s)
- Mohamed M Elnagar
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| | - Johannes Liessem
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| | - Changbin Im
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| | - Dariusz Mitoraj
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| | - Ludwig A Kibler
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| | - Christof Neumann
- Institute of Physical Chemistry, Jena Center for Soft Matter (JCSM) and Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Lessingstr. 10, 07743 Jena, Germany
| | - Andrey Turchanin
- Institute of Physical Chemistry, Jena Center for Soft Matter (JCSM) and Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Lessingstr. 10, 07743 Jena, Germany
| | - Robert Leiter
- Electron Microscopy of Materials Science, Central Facility for Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Ute Kaiser
- Electron Microscopy of Materials Science, Central Facility for Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
- Helmholtz-Institute-Ulm (HIU) Electrochemical Energy Storage, Helmholtzstr. 11, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlsruhe, Germany
| | - Igor Krivtsov
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
- Department of Chemical and Environmental Engineering, University of Oviedo, 33006 Oviedo, Spain
| | - Radim Beranek
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
| |
Collapse
|
2
|
Petrova LS, Yaminzoda ZA, Odintsova OI, Vladimirtseva EL, Solov'eva AA, Smirnova AS. Promising Methods of Antibacterial Finishing of Textile Materials. RUSS J GEN CHEM+ 2022; 91:2758-2767. [PMID: 35068917 PMCID: PMC8763362 DOI: 10.1134/s1070363221120549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 11/23/2022]
Abstract
A review article, containing information on the options, possibilities, and prospects for the development of antibacterial finishing of textile materials, is presented. A wide range of products designed to impart antibacterial, antimicrobial, and antiviral properties to textile materials is considered. The main factors determining the appropriate decision on the technological and functional choice of the protective composition are presented, including the nature of the fiber-forming polymer, the tasks that the resulting material is designed to solve, and its application options. Compositions providing the required effect of destruction of the pathogenic flora and their application technologies are described. Special attention is paid to antimicrobial agents based on silver nanoparticles. Nanoparticles of this metal have a detrimental effect on antibiotic-resistant strains of bacteria; their effectiveness is higher as compared to a number of well-known antibiotics, for example, penicillin and its analogues. Silver nanoparticles are harmless to the human body. Acting as an inhibitor, they limit the activity of the enzyme responsible for oxygen consumption by single-cell bacteria, viruses, and fungi. In this case, silver ions bind to the outer and inner proteins of the bacterial cell membranes, blocking cellular respiration and reproduction. Various options to apply microencapsulation methods for the implementation of antibacterial finishing are considered, including: phase separation, suspension crosslinking, simple and complex coacervation, spray drying, crystallization from the melt, evaporation of the solvent, co-extrusion, layering, fluidized bed spraying, deposition, emulsion and interphase polymerization, layer-by-layer electrostatic self-assembly etc. All presented technologies are at various development stages-from the laboratory stage to production tests, they all have certain advantages and disadvantages. The accelerated development and implementation of the described methods in production of textile materials is relevant and is related to the existing complex epidemiological situation in the world.
Collapse
Affiliation(s)
- L S Petrova
- Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
| | - Z A Yaminzoda
- Tajikistan University of Technology, 734061 Dushanbe, Tajikistan
| | - O I Odintsova
- Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
| | - E L Vladimirtseva
- Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
| | - A A Solov'eva
- Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
| | - A S Smirnova
- Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia
| |
Collapse
|
3
|
Development of Multifunctional Coating of Textile Materials Using Silver Microencapsulated Compositions. COATINGS 2021. [DOI: 10.3390/coatings11020159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The efficiency of the method for the synthesis of silver nanoparticles using a system containing oxalic dialdehyde as a reducing agent, and polyguanidine as a stabilizer is shown. An analysis of the data of photon correlation spectroscopy characterizing the sizes of the formed particles in the Ag-polyelectrolyte system is presented. It has been established that the synthesized silver nanoparticles have a stable biocidal effect. The system of biodegradable polyelectrolytes chitosan-xanthan gum for the synthesis of the capsule shell including silver nanoparticles is selected. This will allow the formation of stable polyelectrolyte capsule shells containing oyster mushroom mycelium extract. A protocol for the synthesis of microcapsules by the method of sequential adsorption of chitosan polyelectrolytes and xanthan gum on calcium carbonate templates was developed. Silver nanoparticles are included in the capsule shell, and a biologically active drug (oyster mushroom mycelium extract) is included in the core. The technological mode of complex capsules immobilization on a textile material by the layer-by-layer method is described. The immobilization of multilayer microcapsules on a fibrous substrate is provided by a system of polyelectrolytes: positively charged chitosan and negatively charged xanthan gum. The developed multifunctional coatings make it possible to impart multifunctional properties to textile materials: antibacterial, antimycotic, high hygroscopic properties.
Collapse
|
4
|
Yuan W, Weng GM, Lipton J, Li CM, Van Tassel PR, Taylor AD. Weak polyelectrolyte-based multilayers via layer-by-layer assembly: Approaches, properties, and applications. Adv Colloid Interface Sci 2020; 282:102200. [PMID: 32585489 DOI: 10.1016/j.cis.2020.102200] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 06/03/2020] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
Layer-by-layer (LbL) assembly is a nanoscale technique with great versatility, simplicity and molecular-level processing of various nanoscopic materials. Weak polyelectrolytes have been used as major building blocks for LbL assembly providing a fundamental and versatile tool to study the underlying mechanisms and practical applications of LbL assembly due to its pH-responsive charge density and molecular conformation. Because of high-density uncompensated charges and high-chain mobility, weak polyelectrolyte exponential multilayer growth is considered one of the fastest developing areas for organized molecular films. In this article, we systematically review the current status and developments of weak polyelectrolyte-based multilayers including all-weak-polyelectrolyte multilayers, weak polyelectrolytes/other components (e.g. strong polyelectrolytes, neutral polymers, and nanoparticles) multilayers, and exponentially grown weak polyelectrolyte multilayers. Several key aspects of weak polyelectrolytes are highlighted including the pH-controllable properties, the responsiveness to environmental pH, and synergetic functions obtained from weak polyelectrolyte/other component multilayers. Throughout this review, useful applications of weak polyelectrolyte-based multilayers in drug delivery, tunable biointerfaces, nanoreactors for synthesis of nanostructures, solid state electrolytes, membrane separation, and sensors are highlighted, and promising future directions in the area of weak polyelectrolyte-based multilayer assembly such as fabrication of multi-responsive materials, adoption of unique building blocks, investigation of internal molecular-level structure and mechanism of exponentially grown multilayers, and exploration of novel biomedical and energy applications are proposed.
Collapse
|
5
|
Jenjob R, Phakkeeree T, Crespy D. Core–shell particles for drug-delivery, bioimaging, sensing, and tissue engineering. Biomater Sci 2020; 8:2756-2770. [DOI: 10.1039/c9bm01872g] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Core–shell particles offer significant advantages in their use for bioimaging and biosensors.
Collapse
Affiliation(s)
- Ratchapol Jenjob
- Department of Materials Science and Engineering
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
| | - Treethip Phakkeeree
- Department of Materials Science and Engineering
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
| | - Daniel Crespy
- Department of Materials Science and Engineering
- School of Molecular Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
| |
Collapse
|
6
|
Affiliation(s)
- Jose D. Delgado
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| |
Collapse
|
7
|
Elizarova IS, Luckham PF. Layer-by-layer adsorption: Factors affecting the choice of substrates and polymers. Adv Colloid Interface Sci 2018; 262:1-20. [PMID: 30448237 DOI: 10.1016/j.cis.2018.11.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/04/2018] [Accepted: 11/06/2018] [Indexed: 01/10/2023]
Abstract
The electrostatic layer-by-layer technique for fabrication of multi-layered structures of various sizes and shapes using flat and colloidal templates coupled with polyelectrolyte layer-forming materials has attracted significant interest among both academic and industrial researchers due to its versatility and relative simplicity of the procedures involved in its execution. Fabrication of the multi-layered structures using the electrostatic layer-by-layer method involves several distinct stages each of which holds great importance when considering the production of a high-quality product. These stages include selection of materials (both template and a pair of construction polyelectrolytes), adsorption of the first polyelectrolyte layer onto the selected templates, formation of the second layer comprised of the oppositely charged polyelectrolyte and guided by the interactions between the two chosen polyelectrolytes, and multi-layering, where a selected number of layers are produced, and which is conditioned by both intrinsic properties of the involved construction materials and external fabrication conditions such as temperature, pH and ionic strength. The current review summarises the most important aspects of each stage mentioned above and gives examples of the materials suitable for utilization of the technique and describes the underlying physics involved.
Collapse
|
8
|
Zhang R, Duan X, Ding M, Shi T. Molecular Dynamics Simulation of Salt Diffusion in Polyelectrolyte Assemblies. J Phys Chem B 2018; 122:6656-6665. [DOI: 10.1021/acs.jpcb.8b02644] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ran Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, Jilin, P. R. China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, Jilin, P. R. China
| | - Mingming Ding
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, Jilin, P. R. China
| | - Tongfei Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, Jilin, P. R. China
| |
Collapse
|
9
|
Ko JW, Son EJ, Park CB. Nature-Inspired Synthesis of Nanostructured Electrocatalysts through Mineralization of Calcium Carbonate. CHEMSUSCHEM 2017; 10:2585-2591. [PMID: 28493469 DOI: 10.1002/cssc.201700616] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/10/2017] [Indexed: 05/12/2023]
Abstract
Biomineralization is a biogenic process that produces elaborate inorganic and organic hybrid materials in nature. Inspired by the natural process, this study explored a new mineralization approach to create nanostructured CaCO3 films composed of amorphous CaCO3 hemispheres by using catechol-rich polydopamine (PDA) as a biomimetic mediator. The thus synthesized biomimetic CaCO3 was successfully transformed to nanostructured films of metal-oxide minerals, such as FeOOH, CoCO3 , NiCO3 , and MnOOH, through a simple procedure. The CaCO3 -templated metal-oxide minerals functioned as efficient electrocatalysts; a CaCO3 -templated cobalt phosphate (nanoCoPi) film exhibited high stability as a water-oxidation electrocatalyst with a current density of 1.5 mA cm-2 . The nanostructure of nanoCoPi, consisting of individual nanoparticles (≈70 nm) and numerous internal pores (BET surface area: 3.17 m2 g-1 ), facilitated an additional charge-transfer pathway from the electrode to individual active sites of the catalyst. This work demonstrates a plausible strategy for facile and green synthesis of nanostructured electrocatalysts through biomimetic CaCO3 mineralization.
Collapse
Affiliation(s)
- Jong Wan Ko
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305701, Republic of Korea
| | - Eun Jin Son
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305701, Republic of Korea
| | - Chan Beum Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon, 305701, Republic of Korea
| |
Collapse
|
10
|
Strawski M, Granicka LH, Szklarczyk M. Redox properties of polyelectrolyte multilayer modified electrodes: a significant effect of the interactions between the polyelectrolyte layers in the films. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
11
|
Siriwardane DA, Kulikov O, Reuther JF, Novak BM. Rigid, Helical Arm Stars through Living Nickel Polymerization of Carbodiimides. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02456] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dumindika A. Siriwardane
- Department
of Chemistry and Alan G. MacDiarmid Nano Tech Institute, University of Texas Dallas, Richardson, Texas 75080, United States
| | - Oleg Kulikov
- Department
of Chemistry and Alan G. MacDiarmid Nano Tech Institute, University of Texas Dallas, Richardson, Texas 75080, United States
| | - James F. Reuther
- Department
of Chemistry and Alan G. MacDiarmid Nano Tech Institute, University of Texas Dallas, Richardson, Texas 75080, United States
- Department
of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Bruce M. Novak
- Department
of Chemistry and Alan G. MacDiarmid Nano Tech Institute, University of Texas Dallas, Richardson, Texas 75080, United States
| |
Collapse
|
12
|
Rajamanickam R, Baek S, Gwon K, Hwang Y, Shin K, Tae G. Mechanical stimuli responsive and highly elastic biopolymer/nanoparticle hybrid microcapsules for controlled release. J Mater Chem B 2016; 4:4278-4286. [PMID: 32263409 DOI: 10.1039/c6tb00410e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanical stimulus is one of the universally accessible physical ways of triggering the drug release from their carriers. Hollow microcapsules made of polyelectrolyte multilayers by conventional methods are not elastic enough to respond to a large and repetitive mechanical deformation. Here, hybrid hollow capsules comprising alternating layers of inorganic colloidal particles and biopolymers were prepared by the layer-by-layer approach followed by freezing-assisted crosslinking of polymer layers. The size of the capsule was controllable by the size of sacrificial cores. These hybrid capsules were mechanically more stable and recover faster than polyelectrolyte capsules, and could be recovered elastically even after large and repetitive deformation up to 98% relative to their original dimensions. Drugs in a wide range of molecular weight up to 70 kDa Mw could be loaded into the hollow hybrid microcapsules and the release of loaded contents from these hybrid capsules could be controlled through the deformation by applying a weak force such as a finger pressing on them. Mechanical stimuli-responsive delivery of model drugs was demonstrated on a monolayer of these hybrid capsules.
Collapse
Affiliation(s)
- Raja Rajamanickam
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, Republic of Korea.
| | | | | | | | | | | |
Collapse
|
13
|
Laskar P, Saha B, Ghosh SK, Dey J. PEG based random copolymer micelles as drug carriers: the effect of hydrophobe content on drug solubilization and cytotoxicity. RSC Adv 2015. [DOI: 10.1039/c4ra11479e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The effect of hydrophobe content on PEG based random polymeric micelles as drug carriers: a comparative study.
Collapse
Affiliation(s)
- Partha Laskar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur-721 302
- India
| | - Biswajit Saha
- Department of Biotechnology
- Indian Institute of Technology
- Kharagpur-721 302
- India
| | - Sudip Kumar Ghosh
- Department of Biotechnology
- Indian Institute of Technology
- Kharagpur-721 302
- India
| | - Joykrishna Dey
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur-721 302
- India
| |
Collapse
|
14
|
Wang Q, Zhao X, Zhang XK, Lee YI, Liu HG. Fabrication of porous thin films of block copolymer at the liquid/liquid interface and construction of composite films doped with noble metal nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra12001b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A porous polymer film was fabricated at a liquid/liquid interface that can be used as a matrix to form various composite films.
Collapse
Affiliation(s)
- Qian Wang
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| | - Xingjuan Zhao
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| | - Xiao-Kai Zhang
- College of Physics and Electronics
- Shandong Normal University
- Jinan 250014
- P. R. China
| | - Yong-Ill Lee
- Anastro Laboratory
- Department of Chemistry
- Changwon National University
- Changwon 641-773
- Korea
| | - Hong-Guo Liu
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| |
Collapse
|
15
|
Liu M, Wang Q, Geng Y, Wang C, Lee YI, Hao J, Liu HG. Liquid/Liquid interfacial fabrication of thermosensitive and catalytically active Ag nanoparticle-doped block copolymer composite foam films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10503-10512. [PMID: 25110832 DOI: 10.1021/la502738j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An aqueous solution of AgNO3 (upper phase) and a DMF/CHCl3 solution of polystyrene-b-poly(acryl acid)-b-polystyrene (PS-b-PAA-b-PS) or PS-b-PAA-b-PS/1,6-diaminohexane (DAH) (lower phase) constituted a planar liquid/liquid interface. The lower phase gradually transformed to a water-in-oil (W/O) emulsion via spontaneous emulsification due to the "ouzo effect". Polymer molecules, DAH molecules, and Ag(+) ions assembled into microcapsules around emulsion droplets that adsorbed at the planar liquid/liquid interface, resulting in formation of a foam film. DAH acted as a cross-linker during this process. Transmission electron microscopic observations indicated that Ag nanoclusters that were generated through reduction of Ag(+) ions by DMF were homogeneously dispersed in the walls of the foam structure. X-ray photoelectron spectroscopic investigations revealed that Ag(I) and Ag(0) coexisted in the film, and Ag(I) transformed to Ag(0) after further treatment. The film formed without DAH was not stable, while the film formed with DAH was very stable due to intermolecular attraction between PAA and DAH and formation of amides, as revealed by FTIR spectra. The film formed with DAH exhibited high and durable catalytic activity for hydrogenation of nitro compounds and, very interestingly, exhibited thermoresponsive catalytic behavior.
Collapse
Affiliation(s)
- Mei Liu
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry, Shandong University , Jinan 250100, P. R. China
| | | | | | | | | | | | | |
Collapse
|
16
|
Surface plasmon resonance technique for directly probing the interaction of DNA and graphene oxide and ultra-sensitive biosensing. Biosens Bioelectron 2014; 58:374-9. [DOI: 10.1016/j.bios.2014.03.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 02/20/2014] [Accepted: 03/01/2014] [Indexed: 12/20/2022]
|
17
|
|
18
|
Sung D, Yang S, Park JW, Jon S. High-density immobilization of antibodies onto nanobead-coated cyclic olefin copolymer plastic surfaces for application as a sensitive immunoassay chip. Biomed Microdevices 2014; 15:691-698. [PMID: 23274742 DOI: 10.1007/s10544-012-9732-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Our research efforts have been devoted to development of nanobead multilayer-based sensitive immunoassays on cyclic olefin copolymer (COC) plastic surfaces. To facilitate nanobead attachment and impart antibiofouling properties to a COC substrate, we used an amphiphilic copolymer comprising benzyl, polyethylene glycol, and reactive ester moieties to coat the hydrophobic COC surface in an aqueous environment. Subsequently, NH2-modified polystyrene nanobeads were reacted with the polymer-coated COC surface and further assembled into multilayers that increased the overall surface area available for attaching capture antibodies. After treatment of the nanobead multilayers with an amine-reactive homobifunctional crosslinker, a model capture antibody (anti-rabbit IgG) was covalently immobilized onto the activated surface of nanobeads. Finally, a sandwich immunoassay was carried out using rabbit IgG as a target analyte and rhodamine-labeled anti-rabbit IgG as a probe. Compared with a nanobead-free, polymer-coated COC surface, the nanobead multilayer-based immunoassay exhibited ~4-fold higher fluorescence intensity. In addition, our nanobead-based assay system exhibited a wide dynamic range of detection (0.1 to 1,000 ng/mL) and high specificity for rabbit IgG. Furthermore, much better detection sensitivity for rabbit IgG was attained in the nanobead multilayer-based immunoassay than with a conventional ELISA system (0.1 ng/mL versus 10 ng/mL), indicating the potential value of the proposed immunoassay system in plastic-based portable biochip applications.
Collapse
Affiliation(s)
- Daekyung Sung
- Department of Medical System Engineering, Institute of Medical System Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea
| | - Sung Yang
- Department of Medical System Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea.,Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea.,School of Mechatronics, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Gwangju, 500-712, Republic of Korea
| | - Jeong Won Park
- BioHealth IT Convergence Research Department, IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon, 305-700, Republic of Korea
| | - Sangyong Jon
- KAIST Institute for the Biocentury, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 305-701, Republic of Korea. .,Graduate School of Nanoscience and Technology (WCU), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 305-701, Republic of Korea.
| |
Collapse
|
19
|
Tian C, Zhang C, Wu H, Song Y, Shi J, Wang X, Song X, Yang C, Jiang Z. Merging of covalent cross-linking and biomimetic mineralization into an LBL self-assembly process for the construction of robust organic–inorganic hybrid microcapsules. J Mater Chem B 2014; 2:4346-4355. [DOI: 10.1039/c4tb00243a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
20
|
|
21
|
Carregal-Romero S, Rinklin P, Schulze S, Schäfer M, Ott A, Hühn D, Yu X, Wolfrum B, Weitzel KM, Parak WJ. Ion Transport Through Polyelectrolyte Multilayers. Macromol Rapid Commun 2013; 34:1820-6. [DOI: 10.1002/marc.201300571] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 08/31/2013] [Indexed: 01/15/2023]
Affiliation(s)
- Susana Carregal-Romero
- Fachbereich Physik; Philipps Universität Marburg; Marburg Germany
- BIONAND; Centro Andaluz de Nanomedicina y Biotecnología; Málaga Spain
| | - Philipp Rinklin
- Institute of Bioelectronics PGI-8/ICS-8, JARA-FIT; Forschungszentrum, Jülich Jülich Germany
| | - Susanne Schulze
- Fachbereich Chemie; Philipps Universität Marburg; Marburg Germany
| | - Martin Schäfer
- Fachbereich Chemie; Philipps Universität Marburg; Marburg Germany
| | - Andrea Ott
- Fachbereich Physik; Philipps Universität Marburg; Marburg Germany
| | - Dominik Hühn
- Fachbereich Physik; Philipps Universität Marburg; Marburg Germany
| | - Xiang Yu
- Fachbereich Physik; Philipps Universität Marburg; Marburg Germany
| | - Bernhard Wolfrum
- Institute of Bioelectronics PGI-8/ICS-8, JARA-FIT; Forschungszentrum, Jülich Jülich Germany
| | | | - Wolfgang J. Parak
- Fachbereich Physik; Philipps Universität Marburg; Marburg Germany
- CIC Biomagune; San Sebastian Spain
| |
Collapse
|
22
|
Pan TY, Lee CF, Chu CH. Synthesis and characteristics of poly(methacrylic acid-co
-N
-isopropylacrylamide) thermosensitive composite hollow latex particles and their application as drug carriers. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26950] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tzu-Yu Pan
- Department of Cosmetic Science; Chia Nan University of Pharmacy and Science; Tainan Taiwan, Republic of China
| | - Chia-Fen Lee
- Department of Cosmetic Science; Chia Nan University of Pharmacy and Science; Tainan Taiwan, Republic of China
| | - Chun-Hsun Chu
- Microsystems Technology Center, Industrial Technology Research Institute; Tainan Taiwan, Republic of China
| |
Collapse
|
23
|
Lee CF, Wang YC, Chiu WY. Synthesis and characteristics of poly(N-isopropylacrylamide-co-methacrylic acid)/Fe3O4/poly(N-isopropylacrylamide-co-methacrylic acid) two-shell thermosensitive magnetic composite hollow latex particles. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26680] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chia-Fen Lee
- Department of Cosmetic Science; Chia Nan University of Pharmacy and Science; Tainan Taiwan Republic of China
| | - Yu-Cheng Wang
- Department of Material Science and Engineering; National Taiwan University; Taipei Taiwan Republic of China
| | - Wen-Yen Chiu
- Department of Material Science and Engineering; National Taiwan University; Taipei Taiwan Republic of China
- Department of Chemical Engineering; National Taiwan University; Taipei Taiwan Republic of China
- Institute of Polymer Science and Engineering, College of Engineering; National Taiwan University; Taipei Taiwan Republic of China
| |
Collapse
|
24
|
Free-standing poly(2-vinylpyridine) foam films doped with silver nanoparticles formed at the planar liquid/liquid interface. J Colloid Interface Sci 2013; 394:223-30. [DOI: 10.1016/j.jcis.2012.12.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 12/09/2012] [Accepted: 12/12/2012] [Indexed: 11/13/2022]
|
25
|
Correia CR, Reis RL, Mano JF. Multilayered hierarchical capsules providing cell adhesion sites. Biomacromolecules 2013; 14:743-51. [PMID: 23330726 DOI: 10.1021/bm301833z] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Liquified capsules featuring (i) an external shell by layer-by-layer assembly of poly(l-lysine), alginate, and chitosan, and encapsulating (ii) surface functionalized poly(l-lactic acid) (PLLA) microparticles were developed. We hypothesize that, while the liquified environment enhances the diffusion of essential molecules for cell survival, microparticles dispersed in the liquified core of capsules provide the physical support required for cellular functions of anchorage-dependent cells. The influence of the incorporation of PLL on the regime growth, thickness, and stability was analyzed. Results show a more resistant and thicker film with an exponential build-up growth regime. Moreover, capsules ability to support cell survival was assessed. Capsules containing microparticles revealed an enhanced biological outcome in cell metabolic activity and proliferation, suggesting their potential to boost the development of innovative biomaterial designs for bioencapsulation systems and tissue engineering products.
Collapse
Affiliation(s)
- Clara R Correia
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
| | | | | |
Collapse
|
26
|
Ma H, Geng Y, Lee YI, Hao J, Liu HG. Interfacial assembly of Pt nanoparticle-doped free-standing polymer foam films and their catalytic performance. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
27
|
Yuan W, Lu Z, Liu J, Wang H, Li CM. ZnO nanowire array-templated LbL self-assembled polyelectrolyte nanotube arrays and application for charged drug delivery. NANOTECHNOLOGY 2013; 24:045605. [PMID: 23299408 DOI: 10.1088/0957-4484/24/4/045605] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Vertically oriented and robust polyelectrolyte nanotube arrays with high density, large area and high uniformity were successfully grown on substrates by a ZnO nanowire array-templated layer-by-layer (LbL) self-assembly approach for the first time, and were further used to deliver charged drugs, showing that they not only possess pH-responsive loading property, but also significantly enhance the loading capacity and sustained release time. This work could be extended to fabricate polyelectrolyte nanotube arrays with different polyelectrolyte combinations, including weak polyelectrolyte/weak polyelectrolyte, weak polyelectrolyte/strong polyelectrolyte and strong polyelectrolyte/strong polyelectrolyte. With the great versatility to use various substrates and building blocks, the polyelectrolyte nanotube arrays may have great potential for broad applications such as biosensor arrays, bioreactor arrays and optoelectronics.
Collapse
Affiliation(s)
- Weiyong Yuan
- Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing 400715, People's Republic of China
| | | | | | | | | |
Collapse
|
28
|
Wang Y, Blanco-Andujar C, Zhi ZL, So PW, Thanh NTK, Pickup JC. Multilayered nanocoatings incorporating superparamagnetic nanoparticles for tracking of pancreatic islet transplants with magnetic resonance imaging. Chem Commun (Camb) 2013; 49:7255-7. [DOI: 10.1039/c3cc43512a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
29
|
Xiang Y, Lu S, Jiang SP. Layer-by-layer self-assembly in the development of electrochemical energy conversion and storage devices from fuel cells to supercapacitors. Chem Soc Rev 2012; 41:7291-321. [PMID: 22945597 DOI: 10.1039/c2cs35048c] [Citation(s) in RCA: 202] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
As one of the most effective synthesis tools, layer-by-layer (LbL) self-assembly technology can provide a strong non-covalent integration and accurate assembly between homo- or hetero-phase compounds or oppositely charged polyelectrolytes, resulting in highly-ordered nanoscale structures or patterns with excellent functionalities and activities. It has been widely used in the developments of novel materials and nanostructures or patterns from nanotechnologies to medical fields. However, the application of LbL self-assembly in the development of highly efficient electrocatalysts, specific functionalized membranes for proton exchange membrane fuel cells (PEMFCs) and electrode materials for supercapacitors is a relatively new phenomenon. In this review, the application of LbL self-assembly in the development and synthesis of key materials of PEMFCs including polyelectrolyte multilayered proton-exchange membranes, methanol-blocking Nafion membranes, highly uniform and efficient Pt-based electrocatalysts, self-assembled polyelectrolyte functionalized carbon nanotubes (CNTs) and graphenes will be reviewed. The application of LbL self-assembly for the development of multilayer nanostructured materials for use in electrochemical supercapacitors will also be reviewed and discussed (250 references).
Collapse
Affiliation(s)
- Yan Xiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China.
| | | | | |
Collapse
|
30
|
Amstad E, Reimhult E. Nanoparticle actuated hollow drug delivery vehicles. Nanomedicine (Lond) 2012; 7:145-64. [PMID: 22191783 DOI: 10.2217/nnm.11.167] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The trend towards personalized medicine and the long-standing wish to reduce drug consumption and unwanted side effects have been the driving force behind research on drug delivery vehicles that control localization, timing and dose of released cargo. Controlling location and timing of the release allows using more potent drugs as the interaction with the right target is ensured and enables sequential drug release. A particularly desired solution allows for externally triggered release of encapsulated compounds. Externally controlled release can be accomplished if drug delivery vehicles, such as liposomes or polyelectrolyte multilayer capsules, incorporate nanoparticle (NP) actuators. However, close control over the structure of the composite material is necessary to harness this potential. This review describes the assembly and characterization of NP functionalized liposomes and polyelectrolyte multilayer capsules that allow for externally triggered cargo release. Special attention is paid to the relationship between NP stability and the assembly and performance of NP functionalized drug delivery vehicles.
Collapse
Affiliation(s)
- Esther Amstad
- Department of Nanobiotechnology, University of Natural Resources & Life Sciences (BOKU), Vienna, Austria.
| | | |
Collapse
|
31
|
Yuan W, Lu Z, Li CM. Charged drug delivery by ultrafast exponentially grown weak polyelectrolyte multilayers: amphoteric properties, ultrahigh loading capacity and pH-responsiveness. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30834g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
32
|
Rahman MM, Elaissari A. A versatile method for the preparation of rigid submicron hollow capsules containing a temperature responsive shell. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm13882k] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
33
|
Skirtach AG, Yashchenok AM, Möhwald H. Encapsulation, release and applications of LbL polyelectrolyte multilayer capsules. Chem Commun (Camb) 2011; 47:12736-46. [DOI: 10.1039/c1cc13453a] [Citation(s) in RCA: 189] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
34
|
Zhou Z, Shen Y, Tang J, Jin E, Ma X, Sun Q, Zhang B, Van Kirk EA, Murdoch WJ. Linear polyethyleneimine-based charge-reversal nanoparticles for nuclear-targeted drug delivery. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13576g] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|