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Yang G, Bi F, Yu D, Wang Y, Ren H, Wei H, Wang Z, Huang B. Engineering Entomopathogenic Fungi Using Thermal-Responsive Polymer to Boost Their Resilience against Abiotic Stresses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:20308-20320. [PMID: 39225683 DOI: 10.1021/acs.jafc.4c04400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Entomopathogenic fungi offer an ecologically sustainable and highly effective alternative to chemical pesticides for managing plant pests. However, the efficacy of mycoinsecticides in pest control suffers from environmental abiotic stresses, such as solar UV radiation and temperature fluctuations, which seriously hinder their practical application in the field. Herein, we discovered that the synthetic amphiphilic thermal-responsive polymers are able to significantly enhance the resistance of Metarhizium robertsii conidia against thermal and UV irradiation stresses. The thermosensitive polymers with extremely low cytotoxicity and good biocompatibility can be engineered onto the M. robertsii conidia surface by anchoring hydrophobic alkyl chains. Further investigations revealed that polymer supplementation remarkably augmented the capacity for penetration and the virulence of M. robertsii under heat and UV stresses. Notably, broad-spectrum entomopathogenic fungi can be protected by the polymers. The molecular mechanism was elucidated through exploring RNA sequencing and in vivo/vitro enzyme activity assays. This work provides a novel avenue for fortifying the resilience of entomopathogenic fungi, potentially advancing their practical application as biopesticides.
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Affiliation(s)
- Guang Yang
- Department of Material Science and Engineering, School of Material and Chemistry, Anhui Agricultural University, Hefei, Anhui 230036, China
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, Anhui 230036, China
- Key Laboratory of National Forestry and Grassland Administration on Prevention and Control Technology of Pine Wilt Disease, Hefei, Anhui 230036, China
| | - Feihu Bi
- Department of Material Science and Engineering, School of Material and Chemistry, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Deshui Yu
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yulong Wang
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Hui Ren
- Department of Material Science and Engineering, School of Material and Chemistry, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Hanchen Wei
- Department of Material Science and Engineering, School of Material and Chemistry, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zhangxun Wang
- Department of Plant Pathology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Bo Huang
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, Anhui 230036, China
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Zhang W, Chen G, Chen Z, Yang X, Zhang B, Wang S, Li Z, Yang Y, Wu Y, Liu Z, Yu Z. Mitochondria-targeted polyprodrug nanoparticles induce mitochondrial stress for immunogenic chemo-photodynamic therapy of ovarian cancer. J Control Release 2024; 371:470-483. [PMID: 38849094 DOI: 10.1016/j.jconrel.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 06/09/2024]
Abstract
Hypoimmunogenicity and the immunosuppressive microenvironment of ovarian cancer severely restrict the capability of immune-mediated tumor killing. Immunogenic cell death (ICD) introduces a theoretical principle for antitumor immunity by increasing antigen exposure and presentation. Despite recent research progress, the currently available ICD inducers are still very limited, and many of them can hardly induce sufficient ICD based on traditional endoplasmic reticulum (ER) stress. Accumulating evidence indicates that inducing mitochondrial stress usually shows a higher efficiency in evoking large-scale ICD than that via ER stress. Inspired by this, herein, a mitochondria-targeted polyprodrug nanoparticle (named Mito-CMPN) serves as a much superior ICD inducer, effectively inducing chemo-photodynamic therapy-caused mitochondrial stress in tumor cells. The rationally designed stimuli-responsive polyprodrugs, which can self-assemble into nanoparticles, were functionalized with rhodamine B for mitochondrial targeting, cisplatin and mitoxantrone (MTO) for synergistic chemo-immunotherapy, and MTO also serves as a photosensitizer for photodynamic immunotherapy. The effectiveness and robustness of Mito-CMPNs in reversing the immunosuppressive microenvironment is verified in both an ovarian cancer subcutaneous model and a high-grade serous ovarian cancer model. Our results support that the induction of abundant ICD by focused mitochondrial stress is a highly effective strategy to improve the therapeutic efficacy of immunosuppressive ovarian cancer.
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Affiliation(s)
- Wenjia Zhang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Gui Chen
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Ziqi Chen
- Hong Yang, Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Xin Yang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Bingchen Zhang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Shengtao Wang
- School of Biomedical Engineering and Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Zibo Li
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Yuanyuan Yang
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China
| | - Yifen Wu
- Department of Oncology, Dongguan Institute of Clinical Cancer Research, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
| | - Zhigang Liu
- Cancer Center, Dongguan Key Laboratory of Precision Diagnosis and Treatment for Tumors, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
| | - Zhiqiang Yu
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong 523058, China.
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Kitayama Y, Takigawa S, Harada A. Effect of Poly(Vinyl Alcohol) Concentration and Chain Length on Polymer Nanogel Formation in Aqueous Dispersion Polymerization. Molecules 2023; 28:molecules28083493. [PMID: 37110725 PMCID: PMC10143144 DOI: 10.3390/molecules28083493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Nanotechnology has attracted increasing interest in various research fields for fabricating functional nanomaterials. In this study, we investigated the effect of poly(vinyl alcohol) (PVA) addition on the formation and thermoresponsive properties of poly(N-isopropyl acrylamide)-based nanogels in aqueous dispersion polymerizations. During dispersion polymerization, PVA appears to play three roles: (i) it bridges the generated polymer chains during polymerization, (ii) it stabilizes the formed polymer nanogels, and (iii) it regulates the thermoresponsive properties of the polymer nanogels. By regulating the bridging effect of PVA via changing the PVA concentration and chain length, the size of the obtained polymer gel particles was maintained in the nanometer range. Furthermore, we found that the clouding-point temperature increased when using low-molecular weight PVA. We believe that the knowledge gained in this study regarding the effect of PVA concentration and chain length on nanogel formation will aid in the future fabrication of functional polymer nanogels.
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Affiliation(s)
- Yukiya Kitayama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Shunsuke Takigawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Atsushi Harada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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Namgung H, Jo S, Lee TS. Fluorescence Modulation of Conjugated Polymer Nanoparticles Embedded in Poly( N-Isopropylacrylamide) Hydrogel. Polymers (Basel) 2021; 13:polym13244315. [PMID: 34960866 PMCID: PMC8706719 DOI: 10.3390/polym13244315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 11/18/2022] Open
Abstract
A series of conjugated polymers (CPs) emitting red, green, and blue (RGB) fluorescence were synthesized via the Suzuki coupling polymerization. Polymer dots (Pdots) were fabricated by the reprecipitation method from corresponding CPs, in which the Pdot surface was functionalized to have an allyl moiety. The CP backbones were based on the phenylene group, causing the Pdots to show identical ultraviolet-visible absorption at 350 nm, indicating that the same excitation wavelength could be used. The Pdots were covalently embedded in poly(N-isopropylacrylamide) (PNIPAM) hydrogel for further use as a thermoresponsive moiety in the polymer hydrogel. The polymer hydrogel with RGB emission colors could provide thermally reversible fluorescence changes. The size of the hydrogel varied with temperature change because of the PNIPAM’s shrinking and swelling. The swollen and contracted conformations of the Pdot-embedded PNIPAM enabled on-and-off fluorescence, respectively. Fluorescence modulation with 20 to 80% of the hydrogel was possible via thermoreversibility. The fluorescent hydrogel could be a new fluorescence-tuning hybrid material that changes with temperature.
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Abstract
Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-sized, well-dispersed particles into secondary structures, whose collective properties are controlled by not only nanoparticle property but also the superstructure symmetry, orientation, phase, and dimension. This combination of characteristics makes colloidal superstructures highly susceptible to remote stimuli or local environmental changes, representing a prominent platform for developing stimuli-responsive materials and smart devices. Chemists are achieving even more delicate control over their active responses to various practical stimuli, setting the stage ready for fully exploiting the potential of this unique set of materials. This review addresses the assembly of colloids into stimuli-responsive or smart nanostructured materials. We first delineate the colloidal self-assembly driven by forces of different length scales. A set of concepts and equations are outlined for controlling the colloidal crystal growth, appreciating the importance of particle connectivity in creating responsive superstructures. We then present working mechanisms and practical strategies for engineering smart colloidal assemblies. The concepts underpinning separation and connectivity control are systematically introduced, allowing active tuning and precise prediction of the colloidal crystal properties in response to external stimuli. Various exciting applications of these unique materials are summarized with a specific focus on the structure-property correlation in smart materials and functional devices. We conclude this review with a summary of existing challenges in colloidal self-assembly of smart materials and provide a perspective on their further advances to the next generation.
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Affiliation(s)
- Zhiwei Li
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Qingsong Fan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
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6
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Zhang X, Kreuzer LP, Schwaiger DM, Lu M, Mao Z, Cubitt R, Müller-Buschbaum P, Zhong Q. Abnormal fast dehydration and rehydration of light- and thermo-dual-responsive copolymer films triggered by UV radiation. SOFT MATTER 2021; 17:2603-2613. [PMID: 33527960 DOI: 10.1039/d0sm02007a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Abnormal fast dehydration and rehydration of light- and thermo-dual-responsive copolymer films of poly(oligo(ethylene glycol) methyl ether methacrylate-co-6-(4-phenylazophenoxy)hexyl acrylate), abbreviated as P(OEGMA300-co-PAHA), are triggered by UV radiation. Both rapid kinetic processes are probed by in situ neutron reflectivity (NR). The transition temperatures (TTs) of P(OEGMA300-co-PAHA) are 53.0 (ambient conditions) and 52.5 °C (UV radiation, λ = 365 nm). Thin P(OEGMA300-co-PAHA) films show a random distribution of OEGMA300 and PAHA segments. They swell in a D2O vapor atmosphere at 23 °C (below TT) to a swelling ratio d/das-prep of 1.61 ± 0.01 and exhibit a D2O volume fraction φ(D2O) of 39.3 ± 0.5%. After being exposed to UV radiation for only 60 s, d/das-prep and φ(D2O) significantly decrease to 1.00 ± 0.01 and 13.4 ± 0.5%, respectively. Although the UV-induced trans-cis isomerization of the azobenzene in PAHA induces increased hydrophilicity, the configuration change causes a breaking of the intermolecular hydrogen bonds between OEGMA300 and D2O molecules and unexpected film shrinkage. As compared to thermal stimulus-induced dehydration, the present dehydration rate is 100 times faster. Removal of the UV radiation causes immediate rehydration. After 200 s, d/das-prep and φ(D2O) recover to their hydrated states, which is also 30 times faster than the initial hydration. At 60 °C (above TT), thin P(OEGMA300-co-PAHA) films switch to their collapsed state and are insensitive to UV radiation. Thus, the UV-induced fast dehydration and rehydration depend on the existence of hydrogen bonds.
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Affiliation(s)
- Xuan Zhang
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Lucas P Kreuzer
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Dominik M Schwaiger
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Min Lu
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Robert Cubitt
- Institut Laue-Langevin, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Peter Müller-Buschbaum
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany. and Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China. and Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
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Pourjavadi A, Heydarpour R, Tehrani ZM. Multi-stimuli-responsive hydrogels and their medical applications. NEW J CHEM 2021. [DOI: 10.1039/d1nj02260a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review highlights the medical applications of multi-stimuli-responsive hydrogels as self-healing hydrogels, antibacterial materials and drug-delivery systems.
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Affiliation(s)
- Ali Pourjavadi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Azadi Avenue, P. O. Box 11365-9516, Tehran, Iran
| | - Rozhin Heydarpour
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Azadi Avenue, P. O. Box 11365-9516, Tehran, Iran
| | - Zahra Mazaheri Tehrani
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Azadi Avenue, P. O. Box 11365-9516, Tehran, Iran
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Zhu M, Lu D, Lian Q, Wu S, Wang W, Lyon LA, Wang W, Bártolo P, Dickinson M, Saunders BR. Highly swelling pH-responsive microgels for dual mode near infra-red fluorescence reporting and imaging. NANOSCALE ADVANCES 2020; 2:4261-4271. [PMID: 36132786 PMCID: PMC9419105 DOI: 10.1039/d0na00581a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 08/12/2020] [Indexed: 05/08/2023]
Abstract
Near infra-red (NIR) fluorescence is a desirable property for probe particles because such deeply penetrating light enables remote reporting of the local environment in complex surroundings and imaging. Here, two NIR non-radiative energy transfer (NRET) fluorophores (Cy5 and Cy5.5) are coupled to preformed pH-responsive poly(ethylacrylate-methacrylic acid-divinylbenzene) microgel particles (PEA-MAA-5/5.5 MGs) to obtain new NIR fluorescent probes that are cytocompatible and swell strongly. NIR ratiometric photoluminescence (PL) intensity analysis enables reporting of pH-triggered PEA-MAA-5/5.5 MG particle swelling ratios over a very wide range (from 1-90). The dispersions have greatly improved colloidal stability compared to a reference temperature-responsive NIR MG based on poly(N-isopropylacrylamide) (PNP-5/5.5). We also show that the wavelength of maximum PL intensity (λ max) is a second PL parameter that enables remote reporting of swelling for both PEA-MAA-5/5.5 and PNP-5/5.5 MGs. After internalization the PEA-MAA-5/5.5 MGs are successfully imaged in stem cells using NIR light. They are also imaged after subcutaneous injection into model tissue using NIR light. The new NIR PEA-MAA-5/5.5 MGs have excellent potential for reporting their swelling states (and any changes) within physiological settings as well as very high ionic strength environments (e.g., waste water).
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Affiliation(s)
- Mingning Zhu
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
| | - Dongdong Lu
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
| | - Qing Lian
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
| | - Shanglin Wu
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
| | - Wenkai Wang
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
| | - L Andrew Lyon
- Schmid College of Science and Technology, Chapman University Orange CA 92866 USA
- Fowler School of Engineering, Chapman University Orange CA 92866 USA
| | - Weiguang Wang
- Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering, University of Manchester Manchester M13 9PL UK
| | - Paulo Bártolo
- Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering, University of Manchester Manchester M13 9PL UK
| | - Mark Dickinson
- Photon Science Institute, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Brian R Saunders
- Department of Materials, University of Manchester, MSS Tower Manchester M13 9PL UK
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Romano A, Roppolo I, Rossegger E, Schlögl S, Sangermano M. Recent Trends in Applying Rrtho-Nitrobenzyl Esters for the Design of Photo-Responsive Polymer Networks. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2777. [PMID: 32575481 PMCID: PMC7344511 DOI: 10.3390/ma13122777] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/11/2020] [Accepted: 06/16/2020] [Indexed: 01/08/2023]
Abstract
Polymers with light-responsive groups have gained increased attention in the design of functional materials, as they allow changes in polymers properties, on demand, and simply by light exposure. For the synthesis of polymers and polymer networks with photolabile properties, the introduction o-nitrobenzyl alcohol (o-NB) derivatives as light-responsive chromophores has become a convenient and powerful route. Although o-NB groups were successfully exploited in numerous applications, this review pays particular attention to the studies in which they were included as photo-responsive moieties in thin polymer films and functional polymer coatings. The review is divided into four different sections according to the chemical structure of the polymer networks: (i) acrylate and methacrylate; (ii) thiol-click; (iii) epoxy; and (iv) polydimethylsiloxane. We conclude with an outlook of the present challenges and future perspectives of the versatile and unique features of o-NB chemistry.
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Affiliation(s)
- Angelo Romano
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (A.R.); (I.R.)
| | - Ignazio Roppolo
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (A.R.); (I.R.)
| | - Elisabeth Rossegger
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, Leoben 8700, Austria; (E.R.); (S.S.)
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, Leoben 8700, Austria; (E.R.); (S.S.)
| | - Marco Sangermano
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (A.R.); (I.R.)
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10
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Karanastasis AA, Kenath GS, Andersen D, Fokas D, Ryu CY, Ullal CK. One-pot surfactant-free modulation of size and functional group distribution in thermoresponsive microgels. J Colloid Interface Sci 2020; 568:264-272. [PMID: 32092555 DOI: 10.1016/j.jcis.2020.02.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 01/08/2023]
Abstract
Control over the size and functional group distribution of soft responsive hydrogel particles is essential for applications such as drug delivery, catalysis and chemical sensing. Traditionally, targeted functional group distributions are achieved with semi-batch techniques which require specialized equipment, while the preparation of size-tailored particles typically involves the use of surfactants. Herein, we present a simple and robust surfactant-free method for the modulation of size and carboxylic acid functional group distribution in poly(N-isopropylacrylamide) thermoresponsive microgels, employing reaction pH as the single experimental parameter. The varying distributions of carboxylic acid residues arise due to differences in kinetic reactivity, which are a function of the degree of dissociation of methacrylic acid, and thus of reaction pH. Incorporated charged residues induce a surfactant-like action during the particle nucleation stage, and impact the final particle size. Characterization with dynamic light scattering, and electron microscopy consistently supports the pH-tailored morphology of the microgels. A mathematical model which accounts for particle deformation on the imaging substrate also shows excellent agreement with the experimental results.
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Affiliation(s)
- Apostolos A Karanastasis
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA.
| | - Gopal S Kenath
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Dustin Andersen
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Demosthenes Fokas
- Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece
| | - Chang Y Ryu
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Chaitanya K Ullal
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
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11
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Tian Y, Lei M, Yan L, An F. Diselenide-crosslinked zwitterionic nanogels with dual redox-labile properties for controlled drug release. Polym Chem 2020. [DOI: 10.1039/d0py00004c] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We developed a diselenide-crosslinked zwitterionic nanogel based on poly(2-methacryloyloxyethyl phosphorylcholine), which has sensitive dual redox-degradability and high colloidal stability.
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Affiliation(s)
- Yefei Tian
- School of Materials Science and Engineering
- Chang'an University
- Xi'an
- P. R. China
| | - Miao Lei
- School of Materials Science and Engineering
- Chang'an University
- Xi'an
- P. R. China
| | - Luke Yan
- School of Materials Science and Engineering
- Chang'an University
- Xi'an
- P. R. China
| | - Feifei An
- Institute of Medical Engineering
- Department of Biophysics
- School of Basic Medical Science
- Health Science Center
- Xi'an Jiaotong University
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12
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Liu HY, Qiao Z, Mao XX, Zha JC, Yin J. Phenylboronic Acid-Dopamine Dynamic Covalent Bond Involved Dual-Responsive Polymeric Complex: Construction and Anticancer Investigation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11850-11858. [PMID: 31423793 DOI: 10.1021/acs.langmuir.9b02194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In cancer treatment, prolonging the retention time of therapeutic agents in tumor tissues is a key point in enhancing the therapeutic efficacy. However, drug delivery by intravenous injection is always subjected to a "CAPIR" cascade, including circulation, accumulation, penetration, internalization, and release. Intratumoral administration has gradually emerged as an ideal alternative approach for nanomedicine because of its independence of blood constituents and minimal systemic toxicities. In this contribution, based on the dynamically reversible interaction between boronic acid (BA) and dopamine (DA), a thermo- and pH-responsive polymeric complex is rationally obtained by facile mixing of phenylboronic acid (PBA)- and tetraphenylethene (TPE)-modified poly(N-isopropylacrylamide)-b-poly(phenyl isocyanide)s block copolymers, PNIPAM-b-P(PBAPI-co-TPEPI), and tetra(ethylene glycol) methyl ether acrylate (OEGA)- and DA-containing hydrophilic P(DA-co-OEGA) copolymers. The resultant complex exhibited temperature- and pH-dependent size change as well as sustained nile red (NR) release profiles in a mimic tumor environment. Moreover, thanks to the opposite optical behavior of TPE and NR molecules, the complex could be served as a fluorescence ratiometric cell imaging agent, avoiding the interference of background fluorescence and improving correlated resolution. After encapsulation of camptothecin (anticancer drug), the efficient killing on HeLa cells was achieved in vitro, and the structural integrity of the complex endowed its extended retention time in tumor tissues. Considering these advantages, the reversible covalent interaction between PBA and diols can be used as an efficient driving force to form dynamic drug-delivery vectors, which are promising to be an effective nanoplatform for injectable medical treatments.
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Affiliation(s)
- Huan-Ying Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Zhu Qiao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Xiao-Xu Mao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Jie-Cheng Zha
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Jun Yin
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
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13
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Wiehemeier L, Brändel T, Hannappel Y, Kottke T, Hellweg T. Synthesis of smart dual-responsive microgels: correlation between applied surfactants and obtained particle morphology. SOFT MATTER 2019; 15:5673-5684. [PMID: 31246214 DOI: 10.1039/c9sm00690g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Thermo- and pH-responsive copolymer microgels were obtained by surfactant-assisted precipitation polymerization of N-isopropylacrylamide (NIPAM) and acrylic acid (AAc). The surfactants used were sodium dodecylsulfate (SDS), dodecyltrimethylammonium bromide (DTAB) and the nonionic n-octyl-β-d-glucopyranoside (C8G1). We investigate the influence of the surfactants on the acrylic acid incorporation rate, the particle size, particle morphology, and the swelling behaviour at pH 4 and pH 7, at which AAc is neutral or charged, respectively. It is shown that each surfactant has a specific influence, which is connected to its role in the polymerization mechanism and its charge. A combined FTIR and PCS study reveals that the particles undergo a temperature-induced change in microstructure, even if the particle hydrodynamic radius does not change significantly.
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Affiliation(s)
- Lars Wiehemeier
- Bielefeld University, Universitätsstrasse 25, Bielefeld, Germany.
| | - Timo Brändel
- Bielefeld University, Universitätsstrasse 25, Bielefeld, Germany.
| | - Yvonne Hannappel
- Bielefeld University, Universitätsstrasse 25, Bielefeld, Germany.
| | - Tilman Kottke
- Bielefeld University, Universitätsstrasse 25, Bielefeld, Germany.
| | - Thomas Hellweg
- Bielefeld University, Universitätsstrasse 25, Bielefeld, Germany.
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14
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Abdollahi A, Roghani-Mamaqani H, Razavi B, Salami-Kalajahi M. The light-controlling of temperature-responsivity in stimuli-responsive polymers. Polym Chem 2019. [DOI: 10.1039/c9py00890j] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Light-controlling of phase separation in temperature-responsive polymer solutions by using light-responsive materials for reversible controlling physical and chemical properties of the media with an out-of-system stimulus with tunable intensity.
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Affiliation(s)
- Amin Abdollahi
- Faculty of Polymer Engineering
- Sahand University of Technology
- Tabriz
- Iran
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering
- Sahand University of Technology
- Tabriz
- Iran
- Institute of Polymeric Materials
| | - Bahareh Razavi
- Faculty of Polymer Engineering
- Sahand University of Technology
- Tabriz
- Iran
| | - Mehdi Salami-Kalajahi
- Faculty of Polymer Engineering
- Sahand University of Technology
- Tabriz
- Iran
- Institute of Polymeric Materials
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15
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Liu G, Hu J, Liu S. Emerging Applications of Fluorogenic and Non-fluorogenic Bifunctional Linkers. Chemistry 2018; 24:16484-16505. [PMID: 29893499 DOI: 10.1002/chem.201801290] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 01/06/2023]
Abstract
Homo- and hetero-bifunctional linkers play vital roles in constructing a variety of functional systems, ranging from protein bioconjugates with drugs and functional agents, to surface modification of nanoparticles and living cells, and to the cyclization/dimerization of synthetic polymers and biomolecules. Conventional approaches for assaying conjugation extents typically rely on ex situ techniques, such as mass spectrometry, gel electrophoresis, and size-exclusion chromatography. If the conjugation process involving bifunctional linkers was rendered fluorogenic, then in situ monitoring, quantification, and optical tracking/visualization of relevant processes would be achieved. In this review, conventional non-fluorogenic linkers are first discussed. Then the focus is on the evolution and emerging applications of fluorogenic bifunctional linkers, which are categorized into hetero-bifunctional single-caging fluorogenic linkers, homo-bifunctional double-caging fluorogenic linkers, and hetero-bifunctional double-caging fluorogenic linkers. In addition, stimuli-cleavable bifunctional linkers designed for both conjugation and subsequent site-specific triggered release are also summarized.
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Affiliation(s)
- Guhuan Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the MicroscaleiChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the MicroscaleiChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the MicroscaleiChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
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16
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Recent advances on stimuli-responsive macromolecular magnetic resonance imaging (MRI) contrast agents. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9291-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Zhou X, Li L, Qin H, Ning B, Li J, Kan C. Controlled self-assembly into diverse stimuli-responsive microstructures: from microspheres to branched cylindrical micelles and vesicles. RSC Adv 2018; 8:21613-21620. [PMID: 35539922 PMCID: PMC9080933 DOI: 10.1039/c8ra03374a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/03/2018] [Indexed: 11/22/2022] Open
Abstract
A series of amphiphilic PDMAEMA-SS-PCL chains with variable ratios of hydrophilic poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) to hydrophobic poly(ε-caprolactone) (PCL) were prepared via ring-opening polymerization, in which the two different moieties were linked via a disulfide bond with reduction responsiveness. After cross-linking by the photodegradable o-nitrobenzyl linkage, the amphiphilic chains could self-assemble into microspheres, branched cylindrical micelles and vesicles, which were responsive to the reduction agent dl-dithiothreitol and UV light irradiation through different mechanisms.
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Affiliation(s)
- Xiaoteng Zhou
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
| | - Lingxiao Li
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
| | - He Qin
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
| | - Bo Ning
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
| | - Junpei Li
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
| | - Chengyou Kan
- Department of Chemical Engineering, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University Beijing 100084 People's Republic of China
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18
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Uchiyama S, Tsuji T, Kawamoto K, Okano K, Fukatsu E, Noro T, Ikado K, Yamada S, Shibata Y, Hayashi T, Inada N, Kato M, Koizumi H, Tokuyama H. A Cell‐Targeted Non‐Cytotoxic Fluorescent Nanogel Thermometer Created with an Imidazolium‐Containing Cationic Radical Initiator. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801495] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Toshikazu Tsuji
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Kyoko Kawamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Kentaro Okano
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
- Department of Chemical Science and Engineering Kobe University Kobe Hyogo 657-8501 Japan
| | - Eiko Fukatsu
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Noro
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
| | - Kumiko Ikado
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Sayuri Yamada
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Yuka Shibata
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Teruyuki Hayashi
- The Graduate School of Biological Sciences Nara Institute of Science and Technology Ikoma Nara 630-0192 Japan
- Department of Nutrition Koshien University 10-1 Momijigaoka Takarazuka Hyogo 665-0006 Japan
| | - Noriko Inada
- The Graduate School of Biological Sciences Nara Institute of Science and Technology Ikoma Nara 630-0192 Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Hideki Koizumi
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
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19
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Uchiyama S, Tsuji T, Kawamoto K, Okano K, Fukatsu E, Noro T, Ikado K, Yamada S, Shibata Y, Hayashi T, Inada N, Kato M, Koizumi H, Tokuyama H. A Cell‐Targeted Non‐Cytotoxic Fluorescent Nanogel Thermometer Created with an Imidazolium‐Containing Cationic Radical Initiator. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201801495] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Toshikazu Tsuji
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Kyoko Kawamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Kentaro Okano
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
- Department of Chemical Science and Engineering Kobe University Kobe Hyogo 657-8501 Japan
| | - Eiko Fukatsu
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Noro
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
| | - Kumiko Ikado
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Sayuri Yamada
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Yuka Shibata
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Teruyuki Hayashi
- The Graduate School of Biological Sciences Nara Institute of Science and Technology Ikoma Nara 630-0192 Japan
- Department of Nutrition Koshien University 10-1 Momijigaoka Takarazuka Hyogo 665-0006 Japan
| | - Noriko Inada
- The Graduate School of Biological Sciences Nara Institute of Science and Technology Ikoma Nara 630-0192 Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Hideki Koizumi
- Central Laboratories for Key Technologies KIRIN Company Limited 1-13-5 Fukuura Kanazawa-ku Yokohama Kanagawa 236-0004 Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences Tohoku University Sendai Miyagi 980-8578 Japan
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20
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Functionally Oriented Tumor Microenvironment Responsive Polymeric Nanoassembly: Engineering and Applications. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2035-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Brändel T, Wiehemeier L, Kottke T, Hellweg T. Microphase separation of smart double-responsive copolymer microgels studied by local fluorescence probes. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.07.074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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22
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Gupta MK, Balikov DA, Lee Y, Ko E, Yu C, Chun YW, Sawyer DB, Kim WS, Sung HJ. Gradient release of cardiac morphogens by photo-responsive polymer micelles for gradient-mediated variation of embryoid body differentiation. J Mater Chem B 2017; 5:5206-5217. [PMID: 32264105 DOI: 10.1039/c7tb00880e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Retinoic acid (RA) is a well-known morphogen in human development. However, how an RA gradient distribution influences cardiac development remains obscure due to the lack of appropriate experimental apparatus. To address this issue, a polymeric micelle system with covalently attached RA was engineered to deliver gradient quantities of RA upon photo-irradiation. A photo-degradable polymeric nanoparticle (NP) composed of an amphiphilic methoxy(polyethylene glycol)-b-poly(ε-caprolactone)-co-poly(azido-ε-caprolactone-g-ortho nitrobenzyl retinoic ester) copolymer was synthesized, and hanging RA was covalently attached through a photo-sensitive o-nitrobenzyl (ONB) linker. The ONB linker was efficiently cleaved when exposed to a light (365 nm)-gradient, and the consequent gradient release of RA from the micelles was demonstrated. The efficacy of the photo-gradient-mediated RA release was validated across different concentrations of polymer micelles over varied irradiation periods. It was confirmed that polymer micelles demonstrated minimal cytotoxicity when exposed to mouse embryoid bodies (EBs). Finally, when the photo-gradient release of polymer micelles was applied, GFP-cardiac troponin T reporter mouse EBs demonstrated a concurrent gradient-like pattern of cardiac differentiation, verifying the utility of our novel photo-gradient approach to study morphogen gradients not only for cardiac development but also for other potential biological microenvironments subject to morphogen presentation with highly defined spatial and temporal geometries.
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Affiliation(s)
- Mukesh K Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
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23
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Photoswitchable dual-color fluorescent particles from seeded emulsion polymerization and role of some affecting parameters on FRET process. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.01.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Sun W, An Z, Wu P. Switching between Polymer Architectures with Distinct Thermoresponses. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600808] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 01/29/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Wenhui Sun
- The State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Zesheng An
- Institute of Nanochemistry and Nanobiology; College of Environmental and Chemical Engineering; Shanghai University; Shanghai 200444 China
| | - Peiyi Wu
- The State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 China
- College of Chemistry; Chemical Engineering and Biotechnology; Center for Advanced Low-Dimension Materials; Donghua University; Shanghai 201620 China
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25
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Henn DM, Fu W, Mei S, Li CY, Zhao B. Temperature-Induced Shape Changing of Thermosensitive Binary Heterografted Linear Molecular Brushes between Extended Wormlike and Stable Globular Conformations. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00150] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Daniel M. Henn
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Wenxin Fu
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Shan Mei
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Christopher Y. Li
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Bin Zhao
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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26
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Uchiyama S, Gota C, Tsuji T, Inada N. Intracellular temperature measurements with fluorescent polymeric thermometers. Chem Commun (Camb) 2017; 53:10976-10992. [DOI: 10.1039/c7cc06203f] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Intracellular temperature can be measured using fluorescent polymeric thermometersviatheir temperature-dependent fluorescence signals.
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Affiliation(s)
- Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Chie Gota
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Toshikazu Tsuji
- Central Laboratories for Key Technologies
- KIRIN Company Limited
- 236-0004 Kanagawa
- Japan
| | - Noriko Inada
- The Graduate School of Biological Sciences
- Nara Institute of Science and Technology
- Nara 630-0192
- Japan
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27
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Manouras T, Vamvakaki M. Field responsive materials: photo-, electro-, magnetic- and ultrasound-sensitive polymers. Polym Chem 2017. [DOI: 10.1039/c6py01455k] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in field-responsive polymers, which have emerged as highly promising materials for numerous applications, are highlighted.
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Affiliation(s)
- Theodore Manouras
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
- University of Crete
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28
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Wang C, Zhang G, Liu G, Hu J, Liu S. Photo- and thermo-responsive multicompartment hydrogels for synergistic delivery of gemcitabine and doxorubicin. J Control Release 2016; 259:149-159. [PMID: 27865562 DOI: 10.1016/j.jconrel.2016.11.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/25/2016] [Accepted: 11/09/2016] [Indexed: 12/18/2022]
Abstract
Hydrogels have found promising applications in drug delivery due to their biocompatibility, high drug loading capability, and tunable release profiles. However, hydrogel-based carriers are primarily employed for delivering hydrophilic payloads while hydrophobic drugs cannot be efficiently delivered due to the lack of hydrophobic domains within conventional hydrogel matrices. Herein, we report that thermo- and photo-responsive hydrogels could be constructed from amphiphilic triblock copolymers, poly(N-isopropylacrylamide)-b-poly(4-acryloylmorpholine)-b-poly(2-((((2-nitrobenzyl)oxy)carbonyl) amino)ethyl methacrylate) (PNIPAM-b-PNAM-b-PNBOC), and the resulting hydrogels could be further engineered a new carrier for both hydrophilic gemcitabine (GCT) and hydrophobic doxorubicin (DOX). PNIPAM-b-PNAM-b-PNBOC triblock copolymers were first self-assembled into micelles with hydrophobic photosensitive PNBOC cores, hydrophilic PNAM inner shells, and thermoresponsive PNIPAM coronas below the lower critical solution temperature (LCST), while hydrogels of physically cross-linked micellar nanoparticles were achieved at elevated polymer concentrations and high temperatures above the critical gelation temperature (CGT). Rheological experiments revealed that the CGT was highly dependent on polymer compositions and concentrations, that is, a longer hydrophobic PNBOC block or a higher polymer concentration led to a decreased CGT. However, the CGT prior to UV irradiation (CGT0) could be drastically elevated after UV irradiation (CGTUV) as a result of UV irradiation-induced concurrently cross-linking and hydrophobic-to-hydrophilic transition within PNBOC cores. As such, gel-to-sol transition could be accomplished by either temperature decrease or exposure to UV irradiation at a fixed temperature lower than the CGTUV. Note that both GCT and DOX could be simultaneously encapsulated into the hydrogels due to the coexistence of extramicellar aqueous phase and hydrophobic micellar cores. Intriguingly, the subsequent co-release of GCT and DOX could be regulated by taking advantage of either temperature or UV irradiation-mediated gel-to-sol transitions.
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Affiliation(s)
- Cheng Wang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guoying Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guhuan Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
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29
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Hu X, Feeney MJ, McIntosh E, Mullahoo J, Jia F, Xu Q, Thomas SW. Triggered Release of Encapsulated Cargo from Photoresponsive Polyelectrolyte Nanocomplexes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:23517-22. [PMID: 27526052 PMCID: PMC5025818 DOI: 10.1021/acsami.6b07366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/15/2016] [Indexed: 05/06/2023]
Abstract
Combining the numerous advantages of using light as a stimulus, simple free radical random copolymerization, and the easy, all-aqueous preparation of polyelectrolyte complexes (PECs), we prepared photolabile PEC nanoparticles and demonstrated their rapid degradation under UV light. As a proof of concept demonstration, the dye Nile Red was encapsulated in the PECs and successfully released into the surrounding solution as the polyelectrolyte nanocomplex carriers dissolved upon light irradiation.
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Affiliation(s)
- Xiaoran Hu
- Department of Chemistry, Tufts University, 62
Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Matthew J. Feeney
- Department of Chemistry, Tufts University, 62
Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Ethan McIntosh
- Department of Chemistry, Tufts University, 62
Talbot Avenue, Medford, Massachusetts 02155, United States
| | - James Mullahoo
- Department of Chemistry, Tufts University, 62
Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Feng Jia
- Department of Biomedical Engineering, Tufts
University, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Qiaobing Xu
- Department of Biomedical Engineering, Tufts
University, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Samuel W. Thomas
- Department of Chemistry, Tufts University, 62
Talbot Avenue, Medford, Massachusetts 02155, United States
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30
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Hu B, Fu W, Zhao B. Enhancing Gelation of Doubly Thermosensitive Hydrophilic ABC Linear Triblock Copolymers in Water by Thermoresponsive Hairy Nanoparticles. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01156] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Bin Hu
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Wenxin Fu
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Bin Zhao
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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31
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Yin J, Chen Y, Zhang ZH, Han X. Stimuli-Responsive Block Copolymer-Based Assemblies for Cargo Delivery and Theranostic Applications. Polymers (Basel) 2016; 8:E268. [PMID: 30974545 PMCID: PMC6432437 DOI: 10.3390/polym8070268] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 02/03/2023] Open
Abstract
Although a number of tactics towards the fabrication and biomedical exploration of stimuli-responsive polymeric assemblies being responsive and adaptive to various factors have appeared, the controlled preparation of assemblies with well-defined physicochemical properties and tailor-made functions are still challenges. These responsive polymeric assemblies, which are triggered by stimuli, always exhibited reversible or irreversible changes in chemical structures and physical properties. However, simple drug/polymer nanocomplexes cannot deliver or release drugs into the diseased sites and cells on-demand due to the inevitable biological barriers. Hence, utilizing therapeutic or imaging agents-loaded stimuli-responsive block copolymer assemblies that are responsive to tumor internal microenvironments (pH, redox, enzyme, and temperature, etc.) or external stimuli (light and electromagnetic field, etc.) have emerged to be an important solution to improve therapeutic efficacy and imaging sensitivity through rationally designing as well as self-assembling approaches. In this review, we summarize a portion of recent progress in tumor and intracellular microenvironment responsive block copolymer assemblies and their applications in anticancer drug delivery and triggered release and enhanced imaging sensitivity. The outlook on future developments is also discussed. We hope that this review can stimulate more revolutionary ideas and novel concepts and meet the significant interest to diverse readers.
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Affiliation(s)
- Jun Yin
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China.
| | - Yu Chen
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China.
| | - Zhi-Huang Zhang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China.
| | - Xin Han
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China.
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32
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Achilleos DS, Hatton TA, Vamvakaki M. Photoreponsive Hybrid Nanoparticles with Inherent FRET Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5981-5989. [PMID: 27222922 DOI: 10.1021/acs.langmuir.6b00875] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The photoactivated inherent fluorescence resonance energy transfer (FRET) properties of a hard-and-soft hybrid nanosystem comprising poly(1'-(2-methacryloxyethyl)-3',3'-dimethyl-6-nitrospiro-(2H-1-benzopyran-2,2'-indoline))-co-poly[2-(dimethylamino)ethyl methacrylate] (PSPMA-co-PDMAEMA) random copolymer brushes on silica nanoparticles are described. This unique FRET process is switched on by the simultaneous generation of isomer X and merocyanine (MC), which are bipolar in nature and comprise donor-acceptor dyads, from a single spiropyran (SP) chromophore upon UV irradiation. These X-MC species exhibit sufficient lifetimes to allow the read-out of the FRET process. The phenomenon is gradually switched off because of the thermal relaxation of the bipolar chromophores. This inherent property of the nanoemitters is employed in the development of biosensors of high specificity by monitoring variations in the FRET efficiency and lifetime of the hybrids in the presence of biological substances. More specifically, bovine serum albumin (BSA) augments the formation of MC species and retards the MC photobleaching process, leading to the enhancement of the FRET efficiency and lifetime, respectively. On the other hand, amino acid l-histidine further retards the MC thermal relaxation and prolongs the FRET process. We envisage that this platform opens new perspectives in the development of novel, optical nanosensors for applications in various fields including healthcare products and environmental monitoring.
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Affiliation(s)
- Demetra S Achilleos
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), 711 10 Heraklion, Crete, Greece
- Department of Materials Science and Technology, University of Crete , 710 03 Heraklion, Crete, Greece
| | - T Alan Hatton
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), 711 10 Heraklion, Crete, Greece
- Department of Materials Science and Technology, University of Crete , 710 03 Heraklion, Crete, Greece
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33
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Wang L, Sun Z, Ye M, Shao Y, Fang L, Liu X. Fabrication of a cross-linked supramolecular polymer on the basis of cucurbit[8]uril-based host–guest recognition with tunable AIE behaviors. Polym Chem 2016. [DOI: 10.1039/c6py00500d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photo-responsive cross-linked supramolecular polymer was prepared based on a ternary host–guest molecular recognition motif between cucurbit[8]uril and 1,1-dimethyl-4,4-bipyridinium dication and azobenzene derivative, and its AIE behavior was also investigated.
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Affiliation(s)
- Lili Wang
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhe Sun
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Miaomiao Ye
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yu Shao
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Lei Fang
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xiaowei Liu
- Institute of Water Resources & Ocean Engineering
- Ocean College
- Zhejiang University
- Hangzhou 310027
- P. R. China
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34
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Hu B, Wright RA, Jiang S, Henn DM, Zhao B. Hybrid micellar network hydrogels of thermosensitive ABA triblock copolymer and polymer brush-grafted nanoparticles: Effect of LCST transition of polymer brushes on gel property. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.11.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Li Z, Liang R, Liu W, Yan D, Wei M. A dual-stimuli-responsive fluorescent switch ultrathin film. NANOSCALE 2015; 7:16737-16743. [PMID: 26400734 DOI: 10.1039/c5nr05376e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Stimuli-responsive fluorescent switches have shown broad applications in optical devices, biological materials and intelligent responses. Herein, we describe the design and fabrication of a dual-stimuli-responsive fluorescent switch ultrathin film (UTF) via a three-step layer-by-layer (LBL) technique: (i) encapsulation of spiropyran (SP) within an amphiphilic block copolymer (PTBEM) to give the (SP@PTBEM) micelle; (ii) the mixture of riboflavin (Rf) and poly(styrene 4-sulfonate) (PSS) to enhance the adhesion ability of small molecules; (iii) assembly of negatively charged SP@PTBEM and Rf-PSS with cationic layered double hydroxide (LDH) nanoplatelets to obtain the (Rf-PSS/LDH/SP@PTBEM)n UTFs (n: bilayer number). The assembly process of the UTFs and their luminescence properties, as monitored by fluorescence spectroscopy and scanning electron microscopy (SEM), present a uniform and ordered layered structure with stepwise growth. The resulting Rf-PSS/LDH/SP@PTBEM UTF serves as a three-state switchable multicolor (green, yellow, and red) luminescent system based on stimulation from UV/Vis light and pH, with an acceptable reversibility. Therefore, this work provides a facile way to fabricate stimuli-responsive solid-state film switches with tunable-color luminescence, which have potential applications in the areas of displays, sensors, and rewritable optical memory and fluorescent logic devices.
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Affiliation(s)
- Zhixiong Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Box 98, Beijing 100029, P. R. China.
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36
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Fang JY, Lin YK, Wang SW, Li YC, Lee RS. Synthesis and characterization of dual-stimuli-responsive micelles based on poly(N-isopropylacrylamide) and polycarbonate with photocleavable moieties. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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37
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Xue X, Yang J, Huang W, Yang H, Jiang B, Li F, Jiang Y. Dual thermo- and light-responsive nanorods from self-assembly of the 4-propoxyazobenzene-terminated poly(N-isopropylacrylamide) in aqueous solution. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Zhang W, Yang S, Wang CF, Chen S. Anisotropic Biphase Frontal Polymerization toward in Situ Generation of Dual-Component Polymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00659] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Wanchao Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering,
College of Chemistry and Chemical Engineering, Nanjing Tech University, 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, 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering,
College of Chemistry and Chemical Engineering, Nanjing Tech University, 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, 5 Xin Mofan Road, Nanjing 210009, P. R. China
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39
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Hu X, Li Y, Liu T, Zhang G, Liu S. Intracellular cascade FRET for temperature imaging of living cells with polymeric ratiometric fluorescent thermometers. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15551-15560. [PMID: 26114380 DOI: 10.1021/acsami.5b04025] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Intracellular temperature plays a prominent role in cellular functions and biochemical activities inside living cells, but effective intracellular temperature sensing and imaging is still in its infancy. Herein, thermoresponsive double hydrophilic block copolymers (DHBCs)-based fluorescent thermometers were fabricated to investigate their application in intracellular temperature imaging. Blue-emitting coumarin monomer, CMA, green-emitting 7-nitro-2,1,3-benzoxadiazole (NBD) monomer, NBDAE, and red-emitting rhodamine B monomer, RhBEA, were copolymerized separately with N-isopropylacrylamide (NIPAM) to afford dye-labeled PEG-b-P(NIPAM-co-CMA), PEG-b-P(NIPAM-co-NBDAE), and PEG-b-P(NIPAM-co-RhBEA). Because of the favorable fluorescence resonance energy transfer (FRET) potentials between CMA and NBDAE, NBDAE and RhBEA, as well as the slight tendency between CMA and RhBEA fluorophore pairs, three polymeric thermometers based on traditional one-step FRET were fabricated by facile mixing two of these three fluorescent DHBCs, whereas exhibiting limited advantages. Thus, two-step cascade FRET among three polymeric fluorophores was further interrogated, in which NBD acted as a bridging dye by transferring energy from CMA to RhBEA. Through the delicate optimization of the molar contents of three polymeric components, a ∼8.4-fold ratio change occurred in the temperature range of 20-44 °C, and the detection sensitivity improved significantly, reached as low as ∼0.4 °C, which definitely outperformed other one-step FRET thermometers in the intracellular temperature imaging of living cells. To our knowledge, this work represents the first example of polymeric ratiometric thermometer employing thermoresponsive polymer-based cascade FRET mechanism.
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Affiliation(s)
- Xianglong Hu
- †MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
- ‡CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yang Li
- ‡CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Tao Liu
- ‡CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guoying Zhang
- ‡CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shiyong Liu
- ‡CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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40
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Shi SY, He YG, Chen WW, Liu N, Zhu YY, Ding YS, Yin J, Wu ZQ. Polypeptide-b-Poly(Phenyl Isocyanide) Hybrid Rod-Rod Copolymers: One-Pot Synthesis, Self-Assembly, and Cell Imaging. Macromol Rapid Commun 2015; 36:1511-20. [PMID: 26096462 DOI: 10.1002/marc.201500185] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/13/2015] [Indexed: 01/26/2023]
Abstract
Hybrid rod-rod diblock copolymers, poly(γ-benzyl L-glutamate)-poly(4-cyano-benzoic acid 2-isopropyl-5-methyl-cyclohexyl ester) (PBLG-PPI), with determined chirality are facilely synthesized through sequential copolymerization of γ-benzyl-L-glutamate N-carboxyanhydride (BLG-NCA) and phenyl isocyanide monomers bearing chiral menthyl pendants using a Ni(cod)(bpy) complex as the catalyst in one-pot. Circular dichroism and absorption spectra reveal that each block of the block copolymers possesses a stable helical conformation with controlled helicity in solution due to the induction of chiral pendants. The two diastereomeric polymers self-assemble into helical nanofibrils with opposite handedness due to the different chiral induction of the L- and D-menthyl pendants, confirmed by transmission electron microscopy (TEM). Deprotection of the benzyl groups of the PBLG segment affords biocompatible amphiphilic diblock copolymers, poly(L-glutamic acid)-poly(4-cyano-benzoic acid 2-isopropyl-5-methyl-cyclohexyl ester) (PLGA-PPI), that can self-assemble into well-defined micelles by cosolvent induced aggregation. Very interestingly, a chiral rhodamine chromophores RhB(D) can be selectively encapsulated into the chiral polymeric micelles, which is efficiently internalized into living cells when directly monitored with a confocal microscope. This contribution will be useful for developing novel rod-rod biocompatible hybrid block copolymers with a controlled helicity, and may also provide unique chiral materials for potential bio-medical applications.
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Affiliation(s)
- Sheng-Yu Shi
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Ya-Guang He
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Wei-Wei Chen
- Anhui Provincial Children's Hospital, Hefei, 230000, China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Yuan-Yuan Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Yun-Sheng Ding
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Jun Yin
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
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41
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Chen QB, You YZ. Multistimuli-responsive Hydrogel Particles Prepared via the Self-assembly of PEG-based Hyperbranched Polymers. CHEM LETT 2015. [DOI: 10.1246/cl.150064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qian-Bao Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China
| | - Ye-Zi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China
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42
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Fernandes AM, Mantione D, Gracia R, Leiza JR, Paulis M, Mecerreyes D. From polymer latexes to multifunctional liquid marbles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4433-4441. [PMID: 25633414 DOI: 10.1021/am509040x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A simple method to prepare multifunctional liquid marbles and dry water with magnetic, color, and fluorescent properties is presented. Multifunctional liquid marbles were prepared by encapsulation of water droplets using flocculated polymer latexes. First, the emulsion polymerization reaction of polystyrene and poly(benzyl methacrylate) was carried out using cheap and commercially available cationic surfactants. Subsequently, flocculation of the latex was provoked by an anion-exchange reaction of the cationic surfactant by the addition of lithium bis(trifluoromethanesulfonyl)imide salt. The flocculated polymer latex was filtered and dried, leading to very hydrophobic micronanoparticulated powders. These powders showed a great ability to stabilize the air/water interface. Stable liquid marbles were obtained by rolling water droplets onto the hydrophobic powders previously prepared. The use of very small polystyrene nanoparticles led us to the preparation of very stable and the biggest known liquid marbles up to 2.5 mL of water. Furthermore, the introduction of fluorescent comonomer dyes into the polymer powders allowed us to obtain new morphological images and new knowledge about the structure of liquid marbles by confocal microscopy. Furthermore, the introduction of magnetic nanoparticles into the polymer latex led to magnetic responsive liquid marbles, where the iron oxide nanoparticles are protected within a polymer. Altogether this method represents an accessible and general platform for the preparation of multifunctional liquid marbles and dry water, which may contribute to extending of their actual range of applications.
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Affiliation(s)
- Ana M Fernandes
- Joxe Mari Korta Center, POLYMAT, University of the Basque Country UPV/EHU , Avenida Tolosa 72, 20018 Donostia-San Sebastian, Spain
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43
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Guo R, Mei P, Zhong Q, Yao Y, Su Q, Zhang J. Well-defined triblock copolymers with a photolabile middle block of poly(phenyl vinyl ketone): facile synthesis, chain-scission mechanism and controllable photocleavability. RSC Adv 2015. [DOI: 10.1039/c5ra02863a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Well-defined triblock copolymers with a photocleavable middle block were synthesized by RAFT polymerization and the photodegradation process was tracked by GPEC.
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Affiliation(s)
- Ruiwei Guo
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Pengbo Mei
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Qing Zhong
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Yuan Yao
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Qian Su
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Jianhua Zhang
- Department of Polymer Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
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44
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Li W, He YG, Shi SY, Liu N, Zhu YY, Ding YS, Yin J, Wu ZQ. Fabrication of a multi-charge generable poly(phenyl isocyanide)-block-poly(3-hexylthiophene) rod–rod conjugated copolymer. Polym Chem 2015. [DOI: 10.1039/c4py01624f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile construction of diverse polymeric nanostructures was reported by simple quaternization reaction and UV irradiation starting from the same rod-rod conjugated PPI(-DMAENBA)-b-P3HT) diblock copolymers, which were prepared by sequential living copolymerization of PI and 3HT in one-pot.
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Affiliation(s)
- Wei Li
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Ya-Guang He
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Sheng-Yu Shi
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Na Liu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Yuan-Yuan Zhu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Yun-Sheng Ding
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Jun Yin
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
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45
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Lee RS, Wang SW, Li YC, Fang JY. Synthesis and characterization of thermo-responsive and photo-cleavable block copolymers as nanocarriers. RSC Adv 2015. [DOI: 10.1039/c4ra13702g] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, we synthesized thermo-responsive and photo-cleavable amphiphilic block copolymers containing photodegradable linkers as junction points between hydrophilic and hydrophobic chains.
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Affiliation(s)
- Ren-Shen Lee
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Shiu-Wei Wang
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - You-Chen Li
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 333
- Taiwan
| | - Jia-You Fang
- Graduate Institute of Natural Products
- Chang Gung University
- Tao-Yuan
- Taiwan
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46
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Yu G, Zhou J, Chi X. Pillar[10]arene-Based Size-Selective Host-Guest Complexation and Its Application in Tuning the LCST Behavior of a Thermoresponsive Polymer. Macromol Rapid Commun 2014; 36:23-30. [DOI: 10.1002/marc.201400570] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 10/29/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Guocan Yu
- Department of Chemistry; Zhejiang University; Hangzhou 310027 China
| | - Jiong Zhou
- Department of Chemistry; Zhejiang University; Hangzhou 310027 China
| | - Xiaodong Chi
- Department of Chemistry; Zhejiang University; Hangzhou 310027 China
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47
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Hu B, Henn DM, Wright RAE, Zhao B. Hybrid micellar hydrogels of a thermosensitive ABA triblock copolymer and hairy nanoparticles: effect of spatial location of hairy nanoparticles on gel properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11212-11224. [PMID: 25180712 DOI: 10.1021/la503091a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This article reports a method for control of spatial location of nanoparticles (NPs) in hybrid micellar hydrogels of a thermosensitive ABA triblock copolymer and polymer brush-grafted NPs (hairy NPs), either inside or outside the core of micelles, and the study of the effect of different locations of NPs on gel properties. Two batches of thermosensitive polymer brush-grafted, 17 nm silica NPs with different lower critical solution temperatures (LCSTs) and a thermosensitive ABA triblock copolymer composed of a poly(ethylene oxide) central block and thermosensitive outer blocks (ABA-D) were synthesized. The different locations of NPs were achieved by controlling the LCST of hairy NPs (LCST(NP)) relative to that of the thermosensitive outer blocks of ABA-D (LCST(ABA)). When the LCST(NP) and LCST(ABA) were similar, the NPs resided in the core of micelles upon heating from below the LCST(NP) and LCST(ABA). When the LCST(NP) was significantly higher, the NPs were located outside the core of micelles as confirmed by fluorescent resonance energy transfer. The effects of different locations of hairy NPs and NP-to-polymer mass ratio on properties of hybrid micellar hydrogels formed from aqueous solutions of ABA-D with a concentration of 10 wt % and various amounts of hairy NPs were studied by rheological measurements. The sol-gel transition temperature (T(sol-gel)) and dynamic storage modulus G' of the gels with NPs inside the core of micelles did not change much with increasing the NP-to-polymer mass ratio. In contrast, the T(sol-gel) of gels with NPs in the interstitial space among micelles increased slightly and the G' decreased significantly with the increase of the NP-to-polymer ratio. The hairy NPs in the interstitial space appeared to affect the formation of polymer networks and increase the fraction of polymer loops, resulting in a lower density of bridging chains and thus a lower G'. In addition, for gels with NPs in the interstitial space, a noticeable increase in G' was observed in the heating ramps above 40 °C, which was likely caused by the collapsed hairy NPs adsorbing polymer chains in the dangling and loop forms, increasing the density of bridging chains.
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Affiliation(s)
- Bin Hu
- Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States
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Yang J, Li Z, Zhou Y, Yu G. Construction of a pillar[5]arene-based linear supramolecular polymer and a photo-responsive supramolecular network. Polym Chem 2014. [DOI: 10.1039/c4py01042f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yin J, Shi S, Hu J, Liu S. Construction of polyelectrolyte-responsive microgels, and polyelectrolyte concentration and chain length-dependent adsorption kinetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9551-9559. [PMID: 25053121 DOI: 10.1021/la501918s] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the construction of a polyelectrolyte-responsive system evolved from sterically stabilized protonated poly(2-vinylpyridine) (P2VPH(+)) microgels. Negatively charged sodium dodecylbenzenesulfonate (SDBS) surfactants could be readily internalized into the cationic microgels by means of electrostatic interactions, resulting in microgel collapse and concomitant formation of surfactant micellar domains (P2VPH(+)/SDBS)-contained electrostatic complexes. These internal hydrophobic domains conferred the opportunity of fluorescent dyes to be loaded. The obtained fluorescent microgel complexes could be further disintegrated in the presence of anionic polyelectrolyte, poly(sodium 4-styrenesulfonate) (PNaStS). The stronger electrostatic attraction between multivalent P2VPH(+) microgels and PNaStS polyelectrolyte than single-charged surfactant led to triggered release of the encapsulated pyrene dyes from the hydrophobic interiors into microgel dispersion. The process was confirmed by laser light scattering (LLS) and fluorescence measurements. Furthermore, the entire dynamic process of PNaStS adsorption into P2VPH(+) microgel interior was further studied by stopped-flow equipment as a function of polyelectrolyte concentration and degree of polymerization. The whole adsorption process could be well fitted with a double-exponential function, suggesting a fast (τ1) and a slow (τ2) relaxation time, respectively. The fast process (τ1) was correlated well with the approaching of PNaStS with P2VPH(+) microgel to form a nonequilibrium complex within the microgel shell, while the slow process (τ2) was consistent with the formation of equilibrium complexes in the microgel deeper inside. This simple yet feasible design augurs well for the promising applications in controlled release fields.
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Affiliation(s)
- Jun Yin
- Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, Department of Polymer Material and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, China
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Bat E, Lin EW, Saxer S, Maynard HD. Morphing hydrogel patterns by thermo-reversible fluorescence switching. Macromol Rapid Commun 2014; 35:1260-5. [PMID: 24740924 DOI: 10.1002/marc.201400160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Indexed: 11/09/2022]
Abstract
Stimuli responsive surfaces that show reversible fluorescence switching behavior in response to temperature changes were fabricated. Oligo(ethylene glycol) methacrylate thermoresponsive polymers with amine end-groups were prepared by atom transfer radical polymerization (ATRP). The polymers were patterned on silicon surfaces by electron beam (e-beam) lithography, followed by conjugation of self-quenching fluorophores. Fluorophore conjugated hydrogel thin films were bright when the gels were swollen; upon temperature-induced collapse of the gels, self-quenching of the fluorophores led to significant attenuation of fluorescence. Importantly, the fluorescence was regained when the temperature was cooled. The fluorescence switching behavior of the hydrogels for up to ten cycles was investigated and the swelling-collapse was verified by atomic force microscopy. Morphing surfaces that change shape several times upon increase in temperature were obtained by patterning multiple stimuli responsive polymers.
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Affiliation(s)
- Erhan Bat
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California, 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California, 90095, USA
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