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Li M, Liu G, Liu S, Xiao X, Bai Y, Li Y, Li X, Li Y. Transparent regenerated cellulose film containing azobenzene group with reversible stimulus discoloration property. Carbohydr Polym 2024; 324:121569. [PMID: 37985122 DOI: 10.1016/j.carbpol.2023.121569] [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: 05/22/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/22/2023]
Abstract
The cellulose film, exhibiting color alterations in response to external stimuli, presents itself as a promising functional material. In this study, a universal dissolution-regeneration technique was employed to manufacture a transparent, regenerated cellulose film, characterized by its reversible multi-stimulus discoloration property. This functional cellulose film, endowed with both photochromic and acid-chromic attributes, was synthesized through the introduction of a cellulose-grafted azobenzene derivative into the cellulose solution. The hue of a cellulose film irradiated with ultraviolet light could be inverted upon exposure to visible light or heat. Furthermore, when subject to heating, irradiation, or immersion in an acidic medium, this functional film demonstrated pronounced transparency. The acid-chromic behavior of the film was readily discernible when exposed to highly concentrated acidic aqueous solutions. Both the photochromic and acid-chromic phenomena were discernable to the unaided eye. After ten cycles, no fading of the reversible discoloration properties of the material occurred. This transparent regenerated cellulose film stands as a viable candidate for applications in optical data storage, intelligent switches, and sensors, owing to its capacity for reversible stimulus-triggered discoloration.
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Affiliation(s)
- Ming Li
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China.
| | - Gongwen Liu
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
| | - Shuang Liu
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
| | - Xialian Xiao
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
| | - Yun Bai
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
| | - Yali Li
- College of Physical Education, Gannan Normal University, Ganzhou 341000, China
| | - Xingxing Li
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
| | - Yibao Li
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China; Jiangxi Engineering Research for Bamboo Advanced Materials and Conversion, Ganzhou 341000, China
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2
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Zhou S, Sheng K, Zhang N, Zhang H, Li H, Sun P, Xin X. Light-triggered reversible supramolecular self-assembly of azo groups-functionalized copper nanoclusters. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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3
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Han IK, Han J, Kim YS. Liquid-to-Solid Phase Transitions of Imidazolium-Based Zwitterionic Polymers Induced by Hofmeister Anions. Chem Asian J 2021; 16:1897-1900. [PMID: 34018681 DOI: 10.1002/asia.202100502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/21/2021] [Indexed: 11/12/2022]
Abstract
In this study, we compared the responses of two different types of zwitterionic polymers (ZPs), polyvinylimidzole sulfobetaine (poly(SBVI)) and polymethacrylate sulfobetaine (poly(SBMA)) to Hofmeister anions. Although the anions of the two ZPs were the same as the sulfonate anions and only the types of their cations were different from each other, the aggregation behavior of each in the salt aqueous solution was remarkably different. Consequently, poly(SBVI) exhibited both salting-in and salting-out effects depending on the type and concentration of salt, while poly(SBMA) only exhibited the anti-polyelectrolyte effect. The results of this study provide a deeper understanding of the behavior of zwitterionic polymers in salt solutions and will greatly expand their applications.
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Affiliation(s)
- Im Kyung Han
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, 37673, Pohang, Gyeongbuk, South Korea
| | - Jihoon Han
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, 37673, Pohang, Gyeongbuk, South Korea
| | - Youn Soo Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, 37673, Pohang, Gyeongbuk, South Korea
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4
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Wang EZ, Wang Y, Xiao D. Polymer Nanocomposites for Photocatalytic Degradation and Photoinduced Utilizations of Azo-Dyes. Polymers (Basel) 2021; 13:1215. [PMID: 33918713 PMCID: PMC8069933 DOI: 10.3390/polym13081215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/29/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
Specially designed polymer nanocomposites can photo-catalytically degrade azo dyes in wastewater and textile effluents, among which TiO2-based nanocomposites are outstanding and extensively explored. Other nanocomposites based on natural polymers (i.e., chitosan and kaolin) and the oxides of Al, Au, B, Bi, Fe, Li, and Zr are commonly used. These nanocomposites have better photocatalytic efficiency than pure TiO2 through two considerations: (i) reducing the hole/electron recombination rate by stabilizing the excited electron in the conducting band, which can be achieved in TiO2-nanocomposites with graphene, graphene oxide, hexagonal boron nitride (h-BN), metal nanoparticles, or doping; (ii) decreasing the band energy of semiconductors by forming nanocomposites between TiO2 and other oxides or conducting polymers. Increasing the absorbance efficiency by forming special nanocomposites also increases photocatalytic performance. The photo-induced isomerization is exploited in biological systems, such as artificial muscles, and in technical fields such as memory storage and liquid crystal display. Heteroaryl azo dyes show remarkable shifts in photo-induced isomerization, which can be applied in biological and technical fields in place of azo dyes. The self-assembly methods can be employed to synthesize azo-dye polymer nanocomposites via three types of interactions: electrostatic interactions, London forces or dipole/dipole interactions between azo dyes, and photo alignments.
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Affiliation(s)
- Emily Z. Wang
- Department of Molecular Medicine, Cornell College of Veterinary Medicine Ithaca, Ithaca, NY 14853, USA;
| | - Yigui Wang
- Center for Integrative Materials Discovery, Department of Chemistry and Engineering, University of New Haven, West Haven, CT 06515, USA;
| | - Dequan Xiao
- Center for Integrative Materials Discovery, Department of Chemistry and Engineering, University of New Haven, West Haven, CT 06515, USA;
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5
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Li M, Fu S. Photochromic holo-cellulose wood-based aerogel grafted azobenzene derivative by SI-ATRP. Carbohydr Polym 2021; 259:117736. [PMID: 33673997 DOI: 10.1016/j.carbpol.2021.117736] [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: 08/14/2020] [Revised: 01/10/2021] [Accepted: 01/25/2021] [Indexed: 02/02/2023]
Abstract
Wood is actually a natural polymers composite that is easy to process, mainly constituted of cellulose, hemicellulose and lignin. However, most wood-based functional materials are prepared by physical methods, which undoubtedly limit the application of wood-based materials. Herein, the wood aerogel (WA) was obtained from wood by delignification and freezing dried. The WA then was fabricated into an unexpected photochromic wood aerogel (PWA) via surface-initiated atom transfer radical polymerization (SI-ATRP) covalently grafting poly{6-[4-(4-methoxyphenyl-azo)phenoxy]hexyl methacrylate} (PMAZOM). Both WA and PWA showed good compression resilience. The hydrophobicity of PWA was obviously enhanced because of the surface modification. The color of PWA can change from yellow to orange-red after being irradiated by UV light for 30 s. The color of sample can be reversibly changed to yellow under sunlight for 200 s. The lightweight and photosensitive wood aerogel is potential to apply for optical information storage materials and photosensitive devices.
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Affiliation(s)
- Ming Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Shiyu Fu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
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6
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Yu Y, Shao G, Zhang W. A crystallization driven thermoresponsive transition in a liquid crystalline polymer. Polym Chem 2021. [DOI: 10.1039/d1py00996f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new thermoresponsive transition in a liquid crystalline polymer is found and the reason leading to the thermoresponse is discussed.
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Affiliation(s)
- Yuewen Yu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Guangran Shao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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7
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Erfani A, Seaberg J, Aichele CP, Ramsey JD. Interactions between Biomolecules and Zwitterionic Moieties: A Review. Biomacromolecules 2020; 21:2557-2573. [DOI: 10.1021/acs.biomac.0c00497] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Amir Erfani
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Joshua Seaberg
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Clint Philip Aichele
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Joshua D. Ramsey
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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8
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Vasantha VA, Hua NQ, Rusli W, Hadia NJ, Stubbs LP. Unique Oil-in-Brine Pickering Emulsion Using Responsive Antipolyelectrolyte Functionalized Latex: A Versatile Emulsion Stabilizer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23443-23452. [PMID: 32348674 DOI: 10.1021/acsami.0c03743] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A simple and straightforward approach to synthesize oil-in-water (O/W) emulsions under high salinity and temperature using zwitterion-functionalized latexes are presented in this work. First, well-defined functionalized latexes were synthesized by emulsifier-free emulsion copolymerization in the presence of precursor sulfobetaine comonomer using brine as a continuous phase. The surface-functionalized latex particles were then characterized by DLS, SEM, TEM, XPS, and TGA. The functionalized latex exhibited antipolyelectrolyte behavior in high salinity brine and at high temperatures. The effects of salinity, temperature, and pH on the long-term stability of the particles were investigated. Further, to evaluate the potential in high salinity brine and high temperature, the saltphilic functionalized latexes were utilized to stabilize the oil/brine (O/W) interface without any other additives. The latex enabled the formation of a stable Pickering emulsion system with low solid content (<0.02% w/w) in the presence of 50% v/v n-decane. The functionalized latexes were self-assembled at the O/W interface as a spherical colloidosome in high salinity brine through hydrophobic interactions and irreversible adsorption. The supraparticles were imaged with SEM, providing an insight that the exterior of the emulsion droplets is stabilized by the saltphilic latex particles, forming a protective layer at the oil-water interface through electrostatic repulsion. The antipolyelectrolyte latex can be utilized as a novel emulsion stabilizer, which can provide a versatile alternative for applications in a complex environment such as high salinity, temperature, and low or high pH.
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Affiliation(s)
- Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
| | - Ng Qi Hua
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
| | - Wendy Rusli
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
| | - Nanji J Hadia
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
| | - Ludger Paul Stubbs
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833
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9
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Alsehli M. Polymeric nanocarriers as stimuli-responsive systems for targeted tumor (cancer) therapy: Recent advances in drug delivery. Saudi Pharm J 2020; 28:255-265. [PMID: 32194326 PMCID: PMC7078546 DOI: 10.1016/j.jsps.2020.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 01/19/2020] [Indexed: 11/24/2022] Open
Abstract
In the last decade, considerable attention has been devoted to the use of biodegradable polymeric materials as potential drug delivery carriers. However, bioavailability and drug release at the disease site remain uncontrollable even with the use of polymeric nanocarriers. To address this issue, successful methodologies have been developed to synthesize polymeric nanocarriers incorporated with regions exhibiting a response to stimuli such as redox potential, temperature, pH, and light. The resultant stimuli-responsive polymeric nanocarriers have shown tremendous promise in drug delivery applications, owing to their ability to enhance the bioavailability of drugs at the disease site. In such systems, drug release is controlled in response to specific stimuli, either exogenous or endogenous. This review reports recent advances in the design of stimuli-responsive nanocarriers for drug delivery in cancer therapy. In particular, the synthetic methodologies investigated to date to introduce different types of stimuli-responsive elements within the biomaterials are described. The sufficient understanding of these stimuli-responsive nanocarriers will allow the development of a better drug delivery system that will allow us to solve the challenges encountered in targeted cancer therapy.
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Affiliation(s)
- Mosa Alsehli
- Department of Chemistry, Taibah University, Madina, Saudi Arabia
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10
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Sreejith KR, Gorgannezhad L, Jin J, Ooi CH, Takei T, Hayase G, Stratton H, Lamb K, Shiddiky M, Dao DV, Nguyen NT. Core-Shell Beads Made by Composite Liquid Marble Technology as A Versatile Microreactor for Polymerase Chain Reaction. MICROMACHINES 2020; 11:E242. [PMID: 32111025 PMCID: PMC7142426 DOI: 10.3390/mi11030242] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 01/16/2023]
Abstract
Over the last three decades, the protocols and procedures of the DNA amplification technique, polymerase chain reaction (PCR), have been optimized and well developed. However, there have been no significant innovations in processes for sample dispersion for PCR that have reduced the amount of single-use or unrecyclable plastic waste produced. To address the issue of plastic waste, this paper reports the synthesis and successful use of a core-shell bead microreactor using photopolymerization of a composite liquid marble as a dispersion process. This platform uses the core-shell bead as a simple and effective sample dispersion medium that significantly reduces plastic waste generated compared to conventional PCR processes. Other improvements over conventional PCR processes of the novel dispersion platform include increasing the throughput capability, enhancing the performance and portability of the thermal cycler, and allowing for the contamination-free storage of samples after thermal cycling.
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Affiliation(s)
- Kamalalayam Rajan Sreejith
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Lena Gorgannezhad
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia
| | - Jing Jin
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Chin Hong Ooi
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan;
| | - Gen Hayase
- Frontier Research Institute for Interdisciplinary Science, Tohoku University, 6-3 Aramaki aza Aoba-ku, Sendai, Miyagi 980-8578, Japan;
| | - Helen Stratton
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
- School of Environment and Science, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia
| | - Krystina Lamb
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Muhammad Shiddiky
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Dzung Viet Dao
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia; (K.R.S.); (L.G.); (J.J.); (C.H.O.); (H.S.); (K.L.); (M.S.); (D.V.D.)
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11
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He X, Wu J, Gao C. Novel amphiphilic graft block azobenzene-containing copolymer with polypeptide block: synthesis, self-assembly and photo-responsive behavior. RSC Adv 2020; 10:5747-5757. [PMID: 35497441 PMCID: PMC9049285 DOI: 10.1039/c9ra10351a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/20/2020] [Indexed: 11/23/2022] Open
Abstract
Well-defined amphiphilic graft block azobenzene-containing copolymer with polypeptide block was synthesized via a combination of copper-mediated atom transfer radical polymerization (ATRP), ring-opening polymerization and click reaction. The alkyne-terminated poly[6-(4-methoxy-azobenzene-4′-oxy)hexyl methacrylate] (PAzoMA) was synthesized by ATRP with a bromine-containing alkyne bifunctional initiator, and the azido-terminated poly(γ-2-chloroethyl-l-glutamate) (PCELG) was synthesized by ROP of γ-2-chloroethyl-l-glutamate-N-carboxyanhydride (CELG-NCA), then the two homopolymers were conjugated by click reaction to afford block azobenzene-containing copolymer PAzoMA-b-PCELG. The chloro groups in PCELG block were transformed into azido groups via azide reactions, and the alkyne-terminated MPEG was grafted to the polypeptide block to afford the final product PAzoMA-b-poly((l-glutamate)-graft-methoxy poly(ethylene glycol)) (PAzoMA-b-(PELG-g-MPEG)) by click reaction. Giant vesicles (micrometer size) were obtained from the amphiphilic graft block copolymer PAzoMA-b-(PELG-g-MPEG) through a solution self-assembly due to the rigid PAzoMA chains and polypeptide chains with the α-helical structure. The investigation of the photo-isomerization behavior of PAzoMA-b-(PELG-g-MPEG) in solution and in vesicular solution showed trans–cis isomerization in solution was quicker than that in vesicular solution and azobenzene J-aggregates in the vesicle solution were only observed. The formation mechanisms of the vesicles were also explored. The research results may provide guidelines for the study of complex copolymers containing different types of rigid chains. Giant vesicles (micrometer size) were prepared from novel amphiphilic graft block azobenzene-containing copolymer with polypeptide block synthesized via a combination of ATRP, ROP and click reaction.![]()
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Affiliation(s)
- Xiaohua He
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Jianxiang Wu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Chunyan Gao
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
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12
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Razavi B, Abdollahi A, Roghani-Mamaqani H, Salami-Kalajahi M. Light-, temperature-, and pH-responsive micellar assemblies of spiropyran-initiated amphiphilic block copolymers: Kinetics of photochromism, responsiveness, and smart drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110524. [PMID: 32228960 DOI: 10.1016/j.msec.2019.110524] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 11/27/2019] [Accepted: 12/05/2019] [Indexed: 12/31/2022]
Abstract
Multi-responsive polymer assemblies are a significant class of smart polymers with potential applications in drug-delivery and gen-delivery systems. Poly(dimethylaminoethyl methacrylate) (PDMAEMA) is among the most applicable multi-responsive polymers that changes its physical and chemical properties in response to temperature, pH, and CO2. Herein, different types of light-, temperature-, pH-, and CO2-responsive polymer assemblies were developed based on multi-responsive PDMAEMA and hydrophobic poly(methyl methacrylate) blocks. In addition, spiropyran was incorporated at the chain ends by using spiropyran-initiated atom transfer radical polymerization method. Novel smart drug-delivery systems were developed by self-assembly of these amphiphilic block copolymers to micellar morphologies in aqueous media. Dynamic light scattering results showed that size of the polymer assemblies changed in response to pH variations (from 5 to 9), temperature changes (above the lower critical solution temperature (LCST) of PDMAEMA), and also UV light irradiation (wavelength of 365 nm). The LCST of PPDMAEMA showed a shift from 53 to 60 °C after isomerization of the SP to MC form, as a result of increase of polarity and water-solubility. The PDMAEMA block results in responsivity of the prepared copolymer assemblies to CO2, which display pH variation from 8-8.6 to 5-6 after 2 min of CO2 gas bubbling. All the multi-responsive micellar polymer assemblies showed various loading capacities and release profiles, and the DOX release can be controlled by pH, temperature, and light. The release efficiency is reached to 60-85% at pH 5.3, 80-90% at temperatures higher than the LCST of PDMAEMA (60 °C), and also 90-100% under UV light irradiation after 48 h. In summary, the multi-responsive polymer assemblies based on amphiphilic block copolymers containing spiropyran chain end groups in the current study have potential applications in smart drug-delivery systems, and offer controlling over the drug-release by different triggers, such as light irradiation, pH variation, and temperature change. A very low concentration of spiropyran molecules (one per polymer chain) showed light-controlling of drug-release from the assemblies with high efficiencies.
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Affiliation(s)
- Bahareh Razavi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Amin Abdollahi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
| | - Mehdi Salami-Kalajahi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
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13
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Fu YH, Perales C, Eliason T, Bergbreiter DE. 110th Anniversary: Reversible Solubilization of Polar Polymers and Polymeric Catalysts in Nonpolar Solvents. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying-Hua Fu
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Camila Perales
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Todd Eliason
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - David E. Bergbreiter
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
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Ansari M, Bera R, Mondal S, Das N. Triptycene-Derived Photoresponsive Fluorescent Azo-Polymer as Chemosensor for Picric Acid Detection. ACS OMEGA 2019; 4:9383-9392. [PMID: 31460028 PMCID: PMC6648835 DOI: 10.1021/acsomega.9b00497] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/16/2019] [Indexed: 05/08/2023]
Abstract
Two new triptycene-based azobenzene-functionalized polymers (TBAFPs) have been synthesized using the well-known Pd-catalyzed Sonogashira cross-coupling polycondensation reaction between 2,6-diethynyltriptycene and (meta or para) dibromo-azobenzenes. Enhancement of the fluorescent emission intensity was observed upon trans → cis isomerization of -N=N- linkage in TBAFPs. The cis-lifetime of TBAFP1 is rather long (greater than 2 days). The resulting materials were tested as a potential chemosensor for the detection of picric acid (PA)-a water pollutant as well as chemical constituent of explosives used in warfare. PA was found to interact strongly with TBAFPs, which led to significant quenching of the latter's fluorescence emission intensities. The binding constants are in the order of 105 M-1. TBAFPs were also able to detect PA in nanomolar concentrations.
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Affiliation(s)
- Mosim Ansari
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Ranajit Bera
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Snehasish Mondal
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
| | - Neeladri Das
- Department of Chemistry, Indian
Institute of Technology Patna, 801106 Bihar, India
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Vasantha VA, Rusli W, Junhui C, Wenguang Z, Sreekanth KV, Singh R, Parthiban A. Highly monodisperse zwitterion functionalized non-spherical polymer particles with tunable iridescence. RSC Adv 2019; 9:27199-27207. [PMID: 35529225 PMCID: PMC9070653 DOI: 10.1039/c9ra05162g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 08/14/2019] [Indexed: 02/03/2023] Open
Abstract
A facile and simple synthetic route towards functionalized non-spherical polymer particles (NSP) with tunable morphologies and iridescence is presented. Monodisperse particles with unique zwitterionic functionality were synthesized via emulsifier-free emulsion polymerization in a single step process. The sulfobetaine comonomer was utilized to induce phase separation in the course of polymerization to achieve anisotropic NSP with controlled morphologies such as quasi-spherical with protruding structures like bulge, eye-ball, and snowman-like nanostructures. Both SEM and TEM analyses revealed anisotropic particles, and phase-separated protrusion morphology with a small increase in aspect ratio. By taking advantage of the monodisperse, colloidally stable NSPs, template free photonic crystal arrays were fabricated through a bottom-up approach. The particles readily self-assemble and exhibit a photonic bandgap with vivid structural colors that arise from ordered structures of different morphologies. Additionally, the salt-responsive photonic crystals also possess tunable color-changing characteristics. A convenient method to fabricate functional photonic crystal arrays using self-assembled non-spherical particles that form tunable iridescent polymer opal by changing size and morphologies, thereby producing new responsive photonic material.![]()
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Affiliation(s)
- Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island
- Singapore 627833
| | - Wendy Rusli
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island
- Singapore 627833
| | - Chen Junhui
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island
- Singapore 627833
| | - Zhao Wenguang
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island
- Singapore 627833
| | - Kandammathe Valiyaveedu Sreekanth
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Centre for Disruptive Photonic Technologies
| | - Ranjan Singh
- Division of Physics and Applied Physics
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Centre for Disruptive Photonic Technologies
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences (ICES)
- Agency for Science, Technology and Research (A*STAR)
- Jurong Island
- Singapore 627833
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