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Habibi S, Bautista MA, Bryant SL, Shor RJ, Natale G. A novel synthesis method of magnetic Janus particles for wastewater applications. J Colloid Interface Sci 2024; 669:952-964. [PMID: 38759594 DOI: 10.1016/j.jcis.2024.05.056] [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: 02/28/2024] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024]
Abstract
HYPOTHESIS Magnetic particles are widely used in many adsorption and removal processes. Among the many types of magnetic colloids, magnetic Janus particles offer significant possibilities for the effective removal of several components from aqueous solutions. Nevertheless, the synthesis of structures integrating different types of materials requires scalable fabrication processes to overcome the limitations of the available methodologies. Herein, we hypothesized a fabrication process for dual-surface functionalized magnetic Janus particles. EXPERIMENTS The primary silica particles with surface-attached amine groups are further asymmetrically modified by iron oxide nanoparticles, exploiting Pickering emulsion and electroless deposition techniques. The dual surface functionality of the particles is designed for its versatility and demonstrated in two wastewater-related applications. FINDINGS We show that our design can simultaneously remove chromium (VI) and phenol from aqueous solution. The fabricated magnetic-responsive Janus particles are also an effective adsorbent for genomic Deoxyribonucleic acid (DNA) and show superior performance to commercial magnetic beads. Thus, this study provides a novel platform for designing magnetic Janus particles with multifunctional surfaces for wastewater treatment applications.
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Affiliation(s)
- Samin Habibi
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Maria A Bautista
- Department of Biological Sciences, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Steven L Bryant
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Roman J Shor
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Giovanniantonio Natale
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
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2
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Khann B, Polpanich D, Opaprakasit P, Wongngam Y, Thananukul K, Kaewsaneha C. Fabrication of Sacha Inchi Oil-Loaded Microcapsules Employing Natural-Templated Lycopodium clavatum Spores and Their Pressure-Stimuli Release Behavior. ACS OMEGA 2023; 8:20937-20948. [PMID: 37323417 PMCID: PMC10268288 DOI: 10.1021/acsomega.3c01698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023]
Abstract
Polymeric particles have attracted vast attention for use in various fields, especially as drug carriers and cosmetics, due to their excellent ability to protect active ingredients from the environment until reaching a target site. However, these materials are commonly produced from conventional synthetic polymers, which impose adverse effects on the environment due to their non-degradable nature, leading to waste accumulation and pollution in the ecosystem. This work aims to utilize naturally occurring Lycopodium clavatum spores to encapsulate sacha inchi oil (SIO), which contains active compounds with antioxidant activity, by applying a facile passive loading/solvent diffusion-assisted method. Sequential chemical treatments by acetone, potassium hydroxide, and phosphoric acid were employed to remove native biomolecules from the spores before encapsulation effectively. These are mild and facile processes compared to other synthetic polymeric materials. Scanning electron microscopy and Fourier-transform infrared spectroscopy revealed the clean, intact, and ready-to-use microcapsule spores. After the treatments, the structural morphology of the treated spores remained significantly unchanged compared to the untreated counterparts. With an oil/spore ratio of 0.75:1.00 (SIO@spore-0.75), high encapsulation efficiency and capacity loading values of 51.2 and 29.3%, respectively, were obtained. Using antioxidant assay (DPPH), the IC50 of SIO@spore-0.75 was 5.25 ± 3.04 mg/mL, similar to that of pure SIO (5.51 ± 0.31 mg/mL). Under pressure stimuli (1990 N/cm3, equivalent to a gentle press), a high amount of SIO was released (82%) from the microcapsules within 3 min. At an incubation time of 24 h, cytotoxicity tests showed a high cell viability of 88% at the highest concentration of the microcapsules (10 mg/mL), reflecting biocompatibility. The prepared microcapsules have a high potential for cosmetic applications, especially as functional scrub beads in facial washing products.
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Affiliation(s)
- Bunthoeurn Khann
- School
of Integrated Science and Innovation, Sirindhorn
International Institute of Technology (SIIT), Thammasat University, Pathum Thani 12121, Thailand
| | - Duangporn Polpanich
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathum
Thani 12120, Thailand
| | - Pakorn Opaprakasit
- School
of Integrated Science and Innovation, Sirindhorn
International Institute of Technology (SIIT), Thammasat University, Pathum Thani 12121, Thailand
| | - Yodsathorn Wongngam
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathum
Thani 12120, Thailand
| | - Kamonchanok Thananukul
- School
of Integrated Science and Innovation, Sirindhorn
International Institute of Technology (SIIT), Thammasat University, Pathum Thani 12121, Thailand
| | - Chariya Kaewsaneha
- School
of Integrated Science and Innovation, Sirindhorn
International Institute of Technology (SIIT), Thammasat University, Pathum Thani 12121, Thailand
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Self crosslinked admicelle-Fe3O4 Janus nanoparticle with high detachment energy to creat low-energy emulsified and ultra-stable Pickering emulsion. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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4
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Anisotropic polymer-mesoporous silica hybrid particles with tailorable morphology. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Alphandéry E. Light-Interacting iron-based nanomaterials for localized cancer detection and treatment. Acta Biomater 2021; 124:50-71. [PMID: 33540060 DOI: 10.1016/j.actbio.2021.01.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/12/2022]
Abstract
To improve the prognosis of cancer patients, methods of local cancer detection and treatment could be implemented. For that, iron-based nanomaterials (IBN) are particularly well-suited due to their biocompatibility and the various ways in which they can specifically target a tumor, i.e. through passive, active or magnetic targeting. Furthermore, when it is needed, IBN can be associated with well-known fluorescent compounds, such as dyes, clinically approved ICG, fluorescent proteins, or quantum dots. They may also be excited and detected using well-established optical methods, relying on scattering or fluorescent mechanisms, depending on whether IBN are associated with a fluorescent compound or not. Systems combining IBN with optical methods are diverse, thus enabling tumor detection in various ways. In addition, these systems provide a wealth of information, which is inaccessible with more standard diagnostic tools, such as single tumor cell detection, in particular by combining IBN with near-field scanning optical microscopy, dark-field microscopy, confocal microscopy or super-resolution microscopy, or the highlighting of certain dynamic phenomena such as the diffusion of a fluorescent compound in an organism, e.g. using fluorescence lifetime imaging, fluorescence resonance energy transfer, fluorescence anisotropy, or fluorescence tomography. Furthermore, they can in some cases be complemented by a therapeutic approach to destroy tumors, e.g. when the fluorescent compound is a drug, or when a technique such as photo-thermal or photodynamic therapy is employed. This review brings forward the idea that iron-based nanomaterials may be associated with various optical techniques to form a commercially available toolbox, which can serve to locally detect or treat cancer with a better efficacy than more standard medical approaches. STATEMENT OF SIGNIFICANCE: New tools should be developed to improve cancer treatment outcome. For that, two closely-related aspects deserve to be considered, i.e. early tumor detection and local tumor treatment. Here, I present various types of iron-based nanomaterials, which can achieve this double objective when they interact with a beam of light under specific and accurately chosen conditions. Indeed, these materials are biocompatible and can be used/combined with most standard microscopic/optical methods. Thus, these systems enable on the one hand tumor cell detection with a high sensitivity, i.e. down to single tumor cell level, and on the other hand tumor destruction through various mechanisms in a controlled and localized manner by deciding whether or not to apply a beam of light and by having these nanomaterials specifically target tumor cells.
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Dynamics of a Pair of Paramagnetic Janus Particles under a Uniform Magnetic Field and Simple Shear Flow. MAGNETOCHEMISTRY 2021. [DOI: 10.3390/magnetochemistry7010016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We numerically investigate the dynamics of a pair of circular Janus microparticles immersed in a Newtonian fluid under a simple shear flow and a uniform magnetic field by direct numerical simulation. Using the COMSOL software, we applied the finite element method, based on an arbitrary Lagrangian-Eulerian approach, and analyzed the dynamics of two anisotropic particles (i.e., one-half is paramagnetic, and the other is non-magnetic) due to the center-to-center distance, magnetic field strength, initial particle orientation, and configuration. This article considers two configurations: the LR-configuration (magnetic material is on the left side of the first particle and on the right side of the second particle) and the RL-configuration (magnetic material is on the right side of the first particle and on the left side of the second particle). For both configurations, a critical orientation determines if the particles either attract (below the critical) or repel (above the critical) under a uniform magnetic field. How well the particles form a chain depends on the comparison between the viscous and magnetic forces. For long particle distances, the viscous force separates the particles, and the magnetic force causes them to repel as the particle orientation increases above the configuration’s critical value. As the initial distance decreases, a chain formation is possible at a steady orientation, but is more feasible for the RL-configuration than the LR-configuration under the same circumstances.
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Filho E, Brito E, Silva R, Streck L, Bohn F, Fonseca J. Superparamagnetic polyacrylamide/magnetite composite gels. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1774382] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ernani Filho
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal, RN, Brazil
| | - Elvis Brito
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal, RN, Brazil
| | - Rodolfo Silva
- Departamento de Física, Universidade Federal do Rio Grande do Norte Campus Universitário, Natal, RN, Brazil
| | - Letícia Streck
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal, RN, Brazil
| | - Felipe Bohn
- Departamento de Física, Universidade Federal do Rio Grande do Norte Campus Universitário, Natal, RN, Brazil
| | - José Fonseca
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário, Natal, RN, Brazil
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Mei S, Pan M, Wang J, Zhang X, Song S, Li C, Liu G. Self-assembly of strawberry-like organic–inorganic hybrid particle clusters with directionally distributed bimetal and facile transformation of the core and corona. Polym Chem 2020. [DOI: 10.1039/d0py00237b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controllable structure of organic–inorganic hybrid particle clusters were successfully fabricated by self-assembly which derived from the strong interaction between carboxyl groups of the organic particles and amino groups of the inorganic particles.
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Affiliation(s)
- Shuxing Mei
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
| | - Mingwang Pan
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
- Hebei Key Laboratory of Functional Polymers
| | - Juan Wang
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
| | - Xiaopeng Zhang
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
| | - Shaofeng Song
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
| | - Chao Li
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
| | - Gang Liu
- Institute of Polymer Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- PR China
- Hebei Key Laboratory of Functional Polymers
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9
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Construction strategy for ratiometric fluorescent probe based on Janus silica nanoparticles as a platform toward intracellular pH detection. Talanta 2019; 205:120021. [DOI: 10.1016/j.talanta.2019.06.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/27/2019] [Accepted: 06/06/2019] [Indexed: 12/17/2022]
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10
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Gharieh A, Khoee S, Mahdavian AR. Emulsion and miniemulsion techniques in preparation of polymer nanoparticles with versatile characteristics. Adv Colloid Interface Sci 2019; 269:152-186. [PMID: 31082544 DOI: 10.1016/j.cis.2019.04.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 04/13/2019] [Accepted: 04/24/2019] [Indexed: 11/29/2022]
Abstract
In recent years, polymer nanoparticles (PNPs) have found their ways into numerous applications extending from electronics to photonics, conducting materials to sensors and medicine to biotechnology. Physical properties and surface morphology of PNPs are the most important parameters that significantly affect on their exploitations and can be controlled through the synthesis process. Emulsion and miniemulsion techniques are among the most efficient and wide-spread methods for preparation of PNPs. The objective of this review is to present and highlight the recent developments in the advanced PNPs with specific properties that are produced through emulsion and miniemulsion processes.
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Affiliation(s)
- Ali Gharieh
- Polymer Science Department, Iran Polymer & Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran
| | - Sepideh Khoee
- Polymer Laboratory, School of Chemistry, College of Science, University of Tehran, PO Box 14155 6455, Tehran, Iran
| | - Ali Reza Mahdavian
- Polymer Science Department, Iran Polymer & Petrochemical Institute, P.O. Box: 14965/115, Tehran, Iran.
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11
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Synthesis and Morphological Control of Biocompatible Fluorescent/Magnetic Janus Nanoparticles Based on the Self-Assembly of Fluorescent Polyurethane and Fe₃O₄ Nanoparticles. Polymers (Basel) 2019; 11:polym11020272. [PMID: 30960256 PMCID: PMC6419061 DOI: 10.3390/polym11020272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 02/01/2019] [Indexed: 11/30/2022] Open
Abstract
Functionalized Janus nanoparticles have received increasing interest due to their anisotropic shape and the particular utility in biomedicine areas. In this work, a simple and efficient method was developed to prepare fluorescent/magnetic composite Janus nanoparticles constituted of fluorescent polyurethane and hydrophobic nano Fe3O4. Two kinds of fluorescent polyurethane prepolymers were synthesized by the copolymerization of fluorescent dye monomers, and the fluorescent/magnetic nanoparticles were fabricated in one-pot via the process of mini-emulsification and self-assembly. The nanostructures of the resulting composite nanoparticles, including core/shell and Janus structure, could be controlled by the phase separation in assembly process according to the result of transmission electron microscopy, whereas the amount of the nonpolar segments of polyurethane played an important role in the particle morphology. The prominent magnetic and fluorescent properties of the Janus nanoparticles were also confirmed by vibrating magnetometer and confocal laser scanning microscope. Furthermore, the Janus nanoparticles featured excellent dispersity, storage stability, and cytocompatibility, which might benefit their potential application in biomedical areas.
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12
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Khan FA, Akhtar S, Almohazey D, Alomari M, Almofty SA, Eliassari A. Fluorescent magnetic submicronic polymer (FMSP) nanoparticles induce cell death in human colorectal carcinoma cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S247-S253. [DOI: 10.1080/21691401.2018.1491476] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Firdos Alam Khan
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Dana Almohazey
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Munthar Alomari
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sarah Ameen Almofty
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdelhamid Eliassari
- University of Lyon, Lyon, France
- LAGEP-CPE, University Lyon 1, Villeurbanne, CNRS, UMR 5007, Villeurbanne, France
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Khan FA, Akhtar S, Almofty SA, Almohazey D, Alomari M. FMSP-Nanoparticles Induced Cell Death on Human Breast Adenocarcinoma Cell Line (MCF-7 Cells): Morphometric Analysis. Biomolecules 2018; 8:biom8020032. [PMID: 29882888 PMCID: PMC6022976 DOI: 10.3390/biom8020032] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/13/2018] [Accepted: 05/15/2018] [Indexed: 12/15/2022] Open
Abstract
Currently, breast cancer treatment mostly revolves around radiation therapy and surgical interventions, but often these treatments do not provide satisfactory relief to the patients and cause unmanageable side-effects. Nanomaterials show promising results in treating cancer cells and have many advantages such as high biocompatibility, bioavailability and effective therapeutic capabilities. Interestingly, fluorescent magnetic nanoparticles have been used in many biological and diagnostic applications, but there is no report of use of fluorescent magnetic submicronic polymer nanoparticles (FMSP-nanoparticles) in the treatment of human breast cancer cells. In the present study, we tested the effect of FMSP-nanoparticles on human breast cancer cells (MCF-7). We tested different concentrations (1.25, 12.5 and 50 µg/mL) of FMSP-nanoparticles in MCF-7 cells and evaluated the nanoparticles response morphometrically. Our results revealed that FMSP-nanoparticles produced a concentration dependent effect on the cancer cells, a dose of 1.25 µg/mL produced no significant effect on the cancer cell morphology and cell death, whereas dosages of 12.5 and 50 µg/mL resulted in significant nuclear augmentation, disintegration, chromatic condensation followed by dose dependent cell death. Our results demonstrate that FMSP-nanoparticles induce cell death in MCF-7 cells and may be a potential anti-cancer agent for breast cancer treatment.
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Affiliation(s)
- Firdos Alam Khan
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
| | - Sarah Ameen Almofty
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
| | - Dana Almohazey
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
| | - Munthar Alomari
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
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Synthesis and interfacial activity of PMMA/PtBMA Janus and homogeneous nanoparticles at water/oil interfaces. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2016.09.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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15
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Zhenqian Z, Sihler S, Ziener U. Alizarin Yellow R (AYR) as compatible stabilizer for miniemulsion polymerization. J Colloid Interface Sci 2017; 507:337-343. [PMID: 28803027 DOI: 10.1016/j.jcis.2017.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 10/19/2022]
Abstract
HYPOTHESIS Many solid particles have been used in Pickering stabilized (mini)emulsions. Stabilizing "particles" can be also formed in situ e.g. by aggregation of dye molecules as reported recently. Among the dyes sodium 2-hydroxy-5-[(E)-(4-nitrophenyl)diazenyl]benzoate (Alizarin Yellow R, (AYR)) is one of the best stabilizers. It is assumed to act as sole stabilizer also in heterophase polymerizations and offers a great potential for applications. EXPERIMENTS Aqueous solutions of AYR in varying concentrations (0.3, 0.5, 1.0, 1.5, 2.0mg/mL (dye/water)) were employed as continuous phase in direct miniemulsions. The oil phase comprised ethenylbenzene (styrene) and hexadecane. The effects of AYR concentration and ultrasonication time on size and distribution of the droplets were investigated. The miniemulsions were polymerized with a water-soluble azo-initiator (2,2'-azobis[n-(2-carboxyethyl)-2-methylpropionamidine] n-hydrate, VA-057) and conversion and kinetics were determined. FINDINGS The AYR is successfully employed as stabilizer in Pickering-like miniemulsion polymerizations of styrene. The higher the AYR concentrations the more stable the miniemulsions, the smaller the droplet sizes and the narrower the distributions are, ranging from ca. 450 to 180nm and 0.38 to 0.15, respectively. The nucleation mechanism of the polymer particles could be revealed by the number ratio of droplets and particles and follows droplet nucleation. This is confirmed by polymerization kinetics, which is in accordance with classical miniemulsion polymerization, too.
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Affiliation(s)
- Zhang Zhenqian
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China; Institute of Organic Chemistry III - Macromolecular Chemistry and Organic Materials, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
| | - Susanne Sihler
- Institute of Organic Chemistry III - Macromolecular Chemistry and Organic Materials, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
| | - Ulrich Ziener
- Institute of Organic Chemistry III - Macromolecular Chemistry and Organic Materials, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany. http://www.uni-ulm.de/nawi/institut-fuer-organische-chemie-iii.html
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Yan W, Pan M, Yuan J, Liu G, Cui L, Zhang G, Zhu L. Raspberry-like patchy particles achieved by decorating carboxylated polystyrene cores with snowman-like poly(vinylidene fluoride)/poly(4-vinylpyridiene) Janus particles. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Watanabe T, Kobayashi C, Song C, Murata K, Kureha T, Suzuki D. Impact of Spatial Distribution of Charged Groups in Core Poly(N-isopropylacrylamide)-Based Microgels on the Resultant Composite Structures Prepared by Seeded Emulsion Polymerization of Styrene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12760-12773. [PMID: 27934516 DOI: 10.1021/acs.langmuir.6b03172] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of raspberry-shaped composite microgels were synthesized by seeded emulsion polymerization of styrene in the presence of hydrogel particles with different distributions of charged groups. Unlike microgels whose charged groups are localized in their center,29 polystyrene nanoparticles were formed inside the core microgels when the microgels whose charged groups were localized on their surface were used as cores for seeded emulsion polymerization. The effects of the surface charge densities of the core microgels and the concentration of styrene monomer during the polymerization on the resultant structures of composite microgels were investigated. The surface structures of obtained composite microgels were mainly evaluated by electron microscopy, and their stimuli responsiveness was evaluated by dynamic light scattering and laser Doppler velocimetry. The internal structures of the composite microgels were visualized from ultrathin cross sections observed by transmission electron microscopy (TEM). Cryo-TEM was used to clarify the microscopic structures of composite microgels when they were in hydrated states. Through a series of characterizations, we summarize the effects of structures of core microgels on the resultant composite structures.
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Affiliation(s)
| | | | - Chihong Song
- National Institute for Physiological Sciences , 38 Nishigonaka, Okazaki, Aichi 444-8585, Japan
| | - Kazuyoshi Murata
- National Institute for Physiological Sciences , 38 Nishigonaka, Okazaki, Aichi 444-8585, Japan
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18
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An efficient strategy for preparation of polymeric Janus particles with controllable morphologies and emulsifiabilities. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Sequeira CAC, Cardoso DSP, Gameiro MLF. Bipolar Electrochemistry, a Focal Point of Future Research. CHEM ENG COMMUN 2016. [DOI: 10.1080/00986445.2016.1147031] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Matsumoto A, Murao S, Matsumoto M, Watanabe C, Murakami M. Fabrication of Janus particles composed of poly (lactic-co-glycolic) acid and hard fat using a solvent evaporation method. Drug Discov Ther 2016; 10:307-313. [DOI: 10.5582/ddt.2016.01230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Akihiro Matsumoto
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University
- Hanshin Yakkyoku Co.,Ltd
| | - Satoshi Murao
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University
| | - Michiko Matsumoto
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University
| | - Chie Watanabe
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University
| | - Masahiro Murakami
- Laboratory of Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University
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21
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Kaewsaneha C, Tangboriboonrat P, Polpanich D, Elaissari A. Multifunctional Fluorescent-Magnetic Polymeric Colloidal Particles: Preparations and Bioanalytical Applications. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23373-23386. [PMID: 26439897 DOI: 10.1021/acsami.5b07515] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fluorescent-magnetic particles (FMPs) play important roles in modern materials, especially as nanoscale devices in the biomedical field. The interesting features of FMPs are attributed to their dual detection ability, i.e., fluorescent and magnetic modes. Functionalization of FMPs can be performed using several types of polymers, allowing their use in various applications. The synergistic potentials for unique multifunctional, multilevel targeting nanoscale devices as well as combination therapies make them particularly attractive for biomedical applications. However, the synthesis of FMPs is challenging and must be further developed. In this review article, we summarized the most recent representative works on polymer-based FMP systems that have been applied particularly in the bioanalytical field.
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Affiliation(s)
- Chariya Kaewsaneha
- University of Lyon-1 Villeurbanne , CNRS, UMR 5007, LAGEP-CPE, 43 bd 11 Novembre 1918, F-69622 Villeurbanne, France
- Department of Chemistry, Faculty of Science, Mahidol University , Phyathai, Bangkok 10400, Thailand
| | - Pramuan Tangboriboonrat
- Department of Chemistry, Faculty of Science, Mahidol University , Phyathai, Bangkok 10400, Thailand
| | - Duangporn Polpanich
- NANOTEC, National Science and Technology Development Agency (NSTDA) , 111 Thailand Science Park, Thanon Phahonyothin, Tambon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Abdelhamid Elaissari
- University of Lyon-1 Villeurbanne , CNRS, UMR 5007, LAGEP-CPE, 43 bd 11 Novembre 1918, F-69622 Villeurbanne, France
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22
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Estupiñán D, Bannwarth MB, Landfester K, Crespy D. Size-Dependent Self-Assembly of Anisotropic Silica-Coated Hybrid Nanoparticles. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Diego Estupiñán
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Markus B. Bannwarth
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudinger Weg 9 55128 Mainz Germany
| | | | - Daniel Crespy
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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23
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Wang H, Yang S, Yin SN, Chen L, Chen S. Janus Suprabead Displays Derived from the Modified Photonic Crystals toward Temperature Magnetism and Optics Multiple Responses. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8827-8833. [PMID: 25848709 DOI: 10.1021/acsami.5b01436] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The design and development of Janus suprabeads (JSs) with multiple responses are highly desirable in the fabrication of functional nanomaterials. In this work, we report a triphase microfluidic strategy for the construction of JSs with temperature-magnetism-optics triple responses. Initially, macromonomer poly(methacrylic acid) (PMAA) obtained via catalytic chain transfer polymerization (CCTP) was grafted onto the polystyrene (PS) colloidal photonic crystals (CPCs) surface. Because abundant carboxylic acid groups in PMAA could coordinate cadmium ions for in situ production of fluorescent CdS quantum dots (QDs) after introducing sulfur ions, the as-prepared JSs were endowed with favorable optical properties. Meanwhile, the as-prepared Cd(2+)/PS CPCs were employed as a template to build JSs with temperature-magnetism sensitivity via the introduction of magnetic Fe3O4 and hydrogels. Finally, the fluorescence pattern was easily performed by using chalcogenides as "ink" to write on the pad, in which in situ reaction mechanism was involved in the response. The multiple responsive JSs show promising applications in sensor, display, and anticounterfeit fields.
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Affiliation(s)
- Huanhuan Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Shengyang Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Su-Na Yin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Li Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China
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24
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Urban M, Freisinger B, Ghazy O, Staff R, Landfester K, Crespy D, Musyanovych A. Polymer Janus Nanoparticles with Two Spatially Segregated Functionalizations. Macromolecules 2014. [DOI: 10.1021/ma5013545] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Markus Urban
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
| | - Birger Freisinger
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
| | - Omayma Ghazy
- Institute
of Organic Chemistry, Macromolecular Chemistry and Organic Materials, University of Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany
| | - Roland Staff
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
| | - Katharina Landfester
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
| | - Daniel Crespy
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
| | - Anna Musyanovych
- Max Planck Institute
for Polymer Research, Ackermannweg
10, Mainz 55128, Germany
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