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Ali N, Yutong L, Wang F, Qi L. In situ growth of dual-responsive polymer as coating for open tubular capillary electrochromatographic separation of epimedins. Anal Bioanal Chem 2024:10.1007/s00216-024-05397-4. [PMID: 38902347 DOI: 10.1007/s00216-024-05397-4] [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: 04/24/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
Recently, open tubular capillary electrochromatography (OT-CEC) has captured considerable interest; its efficient separation capability hinges on the interactions between analytes and polymer coatings. However, in situ growth of stimuli-responsive polymers as coatings has been rarely studied and is crucial for expanding the OT-CEC technique and its application. Herein, following poly(styrene-maleicanhydride) (PSM) chemically bonded onto the inner surface of the capillary, a dual pH/temperature stimuli-responsive block copolymer, P(SMN-COOH), was prepared by in situ polymerizing poly(N-isopropylacrylamide) carboxylic acid terminated [P(N-COOH)] in PSM. An OT-CEC protocol was first explored using the coated capillary for epimedins separation. As a proof of concept, the developed OT-CEC system facilitated hydrogen bonding and tuning the hydrophilic/hydrophobic interactions between the test analytes and the P(SMN-COOH) coating by varying buffer pH and environmental temperature. Four epimedins with similar chemical structures were baseline separated under 40 °C at pH 10.0, exhibiting dramatical improvement in separation efficiency in comparison to its performance under 25 °C at pH 4.0. In addition, the coated capillary showed good repeatability and reusability with relative standard deviations for migration time and peak area between 0.7 and 1.7% and between 2.9 and 4.6%, respectively, and no significant changes after six runs. This work introduces a paradigm for efficient OT-CEC separation of herbal medicines through adjusting the interactions between analytes and smart polymer coatings, addressing polymer coating design and OT-CEC challenges.
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Affiliation(s)
- Nasir Ali
- Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Beijing National Laboratory of Molecular Sciences, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liu Yutong
- Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Beijing National Laboratory of Molecular Sciences, Chinese Academy of Sciences, Beijing, 100190, China
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, China
| | - Fuyi Wang
- Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Beijing National Laboratory of Molecular Sciences, Chinese Academy of Sciences, Beijing, 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Li Qi
- Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Beijing National Laboratory of Molecular Sciences, Chinese Academy of Sciences, Beijing, 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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2
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Tsai WH, Su CK. 4D-Printed Elution-Peak-Guided Dual-Responsive Monolithic Packing for the Solid-Phase Extraction of Metal Ions. Anal Chem 2024; 96:4469-4478. [PMID: 38380612 PMCID: PMC10955517 DOI: 10.1021/acs.analchem.3c04961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
Four-dimensional printing (4DP) technologies are revolutionizing the fabrication of stimuli-responsive devices. To advance the analytical performance of conventional solid-phase extraction (SPE) devices using 4DP technology, in this study, we employed N-isopropylacrylamide (NIPAM)-incorporated photocurable resins and digital light processing three-dimensional printing to fabricate an SPE column with a [H+]/temperature dual-responsive monolithic packing stacked as interlacing cuboids to extract Mn, Co, Ni, Cu, Zn, Cd, and Pb ions. When these metal ions were eluted using 0.5% HNO3 solution as the eluent at a temperature below the lower critical solution temperature of polyNIPAM, the monolithic packing swelled owing to its hydrophilic/hydrophobic transition and electrostatic repulsion among the protonated units of polyNIPAM. These effects resulted in smaller interstitial volumes among these interlacing cuboids and improvements in the elution peak profiles of the metal ions, which, in turn, demonstrated the reduced method detection limits (MDLs; range, 0.2-7.2 ng L-1) during analysis using inductively coupled plasma mass spectrometry. We studied the effects of optimizing the elution peak profiles of the metal ions on the analytical performance of this method and validated its reliability and applicability by analyzing the metal ions in reference materials (CASS-4, SLRS-5, 1643f, and Seronorm Trace Elements Urine L-2) and performing spike analyses of seawater, groundwater, river water, and human urine samples. Our results suggest that this 4D-printed elution-peak-guided dual-responsive monolithic packing enables lower MDLs when packed in an SPE column to facilitate the analyses of the metal ions in complex real samples.
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Affiliation(s)
- Wen-Hsiu Tsai
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C
| | - Cheng-Kuan Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C
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3
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Ali N, Wang F, Qi L. Open tubular capillary electrochromatography with dual-responsive polymer as coating for separation of chromones. J Chromatogr A 2024; 1714:464595. [PMID: 38141483 DOI: 10.1016/j.chroma.2023.464595] [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: 10/27/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Fabricating polymeric coatings that are responsive to multiple/dual stimuli is crucial and remains a major challenge in the development of highly efficient open tubular capillary electrochromatography (OT-CEC). In this study, a pH and temperature-responsive block copolymer, poly(styrene-maleic anhydride 2-dimethylamino ethyl methacrylate), P(St-MAn-DMAEMA), was designed and synthesized. Using P(St-MAn-DMAEMA) as the coating, an OT-CEC protocol was constructed for the analysis of chromones. The morphology and hydrophobicity-hydrophilicity of the polymeric coating could change via varying the environmental conditions, affecting the separation efficiency of OT-CEC. Interestingly, the best performance of OT-CEC was achieved at pH 9.7 and 45 °C via tuning the interactions between the coating and the analytes. Additionally, the proposed OT-CEC method exhibited a good linear range for the detection of the three test chromones from 10.0 to 100.0 μM, with all correlation coefficients (R2) >0.997. The coatings also had good stability and reusability. This work provides an approach for the preparation of new multiple-stimuli-responsive polymeric coatings for the establishment of OT-CEC systems.
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Affiliation(s)
- Nasir Ali
- Beijing National Laboratory of Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Fuyi Wang
- Beijing National Laboratory of Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Li Qi
- Beijing National Laboratory of Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China.
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4
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Mah E, Ghosh R. Synthesis and characterization of positive volume phase transition hydrogel membrane prepared using a cellulose substrate. SEP SCI TECHNOL 2023. [DOI: 10.1080/01496395.2023.2179493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Evan Mah
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Raja Ghosh
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
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5
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Light-Switchable Membrane Permeability in Giant Unilamellar Vesicles. Pharmaceutics 2022; 14:pharmaceutics14122777. [PMID: 36559270 PMCID: PMC9780837 DOI: 10.3390/pharmaceutics14122777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
In this work, giant unilamellar vesicles (GUVs) were synthesized by blending the natural phospholipid 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) with a photoswitchable amphiphile (1) that undergoes photoisomerization upon irradiation with UV-A (E to Z) and blue (Z to E) light. The mixed vesicles showed marked changes in behavior in response to UV light, including changes in morphology and the opening of pores. The fine control of membrane permeability with consequent cargo release could be attained by modulating either the UV irradiation intensity or the membrane composition. As a proof of concept, the photocontrolled release of sucrose from mixed GUVs is demonstrated using microscopy (phase contrast) and confocal studies. The permeability of the GUVs to sucrose could be increased to ~4 × 10-2 μm/s when the system was illuminated by UV light. With respect to previously reported systems (entirely composed of synthetic amphiphiles), our findings demonstrate the potential of photosensitive GUVs that are mainly composed of natural lipids to be used in medical and biomedical applications, such as targeted drug delivery and localized topical treatments.
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Lynen F, Ampe A, Bandini E, Baert M, Wicht K, Kajtazi A, Rahmani T, Veenhoven J, Spileers G. Perspectives in Hydrophobic Interaction Temperature- Responsive Liquid Chromatography (TRLC). LCGC NORTH AMERICA 2022. [DOI: 10.56530/lcgc.na.vd2373d8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Temperature-responsive liquid chromatography (TRLC) is an emerging green high performance liquid chromatography (HPLC) mode allowing reversed phase-type separations while necessitating only water as the mobile phase. The columns therein are typically packed with silica particles to which stimuli-responsive polymers are anchored. In hydrophobic interaction TRLC, such polymers depict a loss of water solubility when increasing the temperature above a characteristic conversion temperature, causing large changes in retention over quite narrow and mild temperature ranges (~5–55 °C). TRLC circumvents the concerns about analyte or column degradation that can occur when implementing high temperatures (>80 °C) on conventional reversed- phase columns. It allows for high performance liquid chromatography (HPLC) using only water often spiked with the additives typically used in reversed-phase LC. Therefore, this separation mode allows for greener, cheaper, and isocratic analyses under non-denaturing conditions. The absence of compositional solvent gradients also allows for the exploitation of temperature gradients in combination with refractive index detection. Purely aqueous hydrophobic interaction TRLC is mostly applicable for solutes depicting a 1 < LogP < 5, yet these ranges can be expanded through implementation of combined aqueous or organic mobiles phases, while preserving the temperature-responsive effects. In this first TRLC installment, our recent developments, new possibilities, and current limitations of the use of 1-D TRLC are discussed, while the column performance is described with respect to the fundamentals of HPLC.
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7
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Luo Y, Pauer W, Luinstra GA. Fabrication of Thermo-Responsive Controllable Shape-Changing Hydrogel. Gels 2022; 8:gels8090531. [PMID: 36135243 PMCID: PMC9498808 DOI: 10.3390/gels8090531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 12/03/2022] Open
Abstract
Temperature response double network (DN) hydrogels comprising a network formed by polymerization of methacrylic acid (MA) modified PVA, N,N’-methylene bis(acrylamide), N-isopropylacryl amide (NIPAM), and one formed from crystalline polyvinyl alcohol (PVA) are prepared in a 3D printed tailor-made mold. The (PVA-MA)-g-PNIPAAm thermoset intermediate is formed in water by a radical, photo-initiated process, and in the presence of dissolved PVA polymers. A subsequent freezing-thawing sequence induces the crystallization of the PVA network, which forms a second network inside the thermoset NIPAM polymer. The prepared hydrogel is thermoresponsive by the phase transition of PNIPAAm segments (T ≈ 32 °C) and has good mechanical properties (tensile strength 1.23 MPa, compressive strength 1.47 MPa). Thermal cycling between room temperature at 40 or 50 °C shows the product converses from a virgin-state to a steady-state, which most likely involves the reorganization of PVA crystals. The swelling-deswelling cycles remain clear at a length change of about 13%.
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Ortega-Zamora C, González-Sálamo J, Perretti MD, Santana D, Carrillo R, Hernández-Borges J. Chain-Shattering Polymers as Degradable Microdispersive Solid-Phase Extraction Sorbents. Anal Chem 2022; 94:9065-9073. [PMID: 35695755 PMCID: PMC9244869 DOI: 10.1021/acs.analchem.2c01301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A chain-shattering
polymer (CSP) has been proposed as a microdispersive
solid-phase extraction (μdSPE) sorbent in a proof-of-concept
study of degradable materials for analytical purposes. The responsive
CSP was synthesized from 1,3,5-tris(bromomethyl)-2-nitrobenzene acting
as the self-immolative trigger responsive unit and 2,6-naphthalenedicarboxylic
acid as aromatic linker to enhance noncovalent aromatic interactions
with the analytes. The CSP was characterized and applied as a μdSPE
sorbent of a group of plasticizers, which were selected as model analytes,
from different types of environmental water samples (tap, waste, and
spring waters). Gas chromatography coupled to mass spectrometry detection
was used for analyte determination. Mean recovery values were in the
range of 80%–118% with RSD values below 22%. After the extraction,
the polymer could be efficiently degraded by UV irradiation or by
chemical reduction, recovering the aromatic linker. This work has
proved the potential of CSPs as recyclable sorbents, paving the way
to more environmentally benign analytical procedures.
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Affiliation(s)
- Cecilia Ortega-Zamora
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain.,Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain
| | - Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain.,Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain.,Department of Chemistry, Sapienza University, P.le Aldo Moro, 5, 00185 Rome, Italy
| | - Marcelle D Perretti
- Instituto de Productos Naturales y Agrobiología, CSIC, Avda. Astrofísico Fco. Sánchez, s/n, 38206 La Laguna, Spain
| | - David Santana
- Instituto de Productos Naturales y Agrobiología, CSIC, Avda. Astrofísico Fco. Sánchez, s/n, 38206 La Laguna, Spain
| | - Romen Carrillo
- Instituto de Productos Naturales y Agrobiología, CSIC, Avda. Astrofísico Fco. Sánchez, s/n, 38206 La Laguna, Spain
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain.,Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain
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9
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Qi L, Qiao J. Advances in stimuli-responsive polymeric coatings for open-tubular capillary electrochromatography. J Chromatogr A 2022; 1670:462957. [DOI: 10.1016/j.chroma.2022.462957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/27/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
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10
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Bongiovanni Abel S, Martinez MV, Bruno MM, Barbero CA, Abraham GA, Acevedo DF. A modular platform based on electrospun carbon nanofibers and poly(
N
‐isopropylacrylamide) hydrogel for sensor applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute of Materials Science and Technology (INTEMA) National University of Mar del Plata (UNMdP)‐National Council of Scientific and Technical Research (CONICET) Mar del Plata Argentina
| | - María V. Martinez
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Mariano M. Bruno
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Cesar A. Barbero
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Gustavo A. Abraham
- Research Institute of Materials Science and Technology (INTEMA) National University of Mar del Plata (UNMdP)‐National Council of Scientific and Technical Research (CONICET) Mar del Plata Argentina
| | - Diego F. Acevedo
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
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11
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Kawamura A, Harada A, Ueno S, Miyata T. Weakly Acidic pH and Reduction Dual Stimuli-Responsive Gel Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11484-11492. [PMID: 34565150 DOI: 10.1021/acs.langmuir.1c01677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This paper reports the facile preparation of dual stimuli-responsive gel particles that simultaneously respond to weakly acidic and reducing stimuli and the application of these gel particles as a drug delivery carrier. The dual stimuli-responsive gel particles composed of a pH-responsive polymer network cross-linked with reduction stimuli-responsive disulfide cross-links, and biocompatible poly(ethylene glycol) cross-links were prepared by soap-free emulsion polymerization. The resulting gel particles were colloidally stable at physiological ionic strength and had a diameter of approximately 200 nm with a narrow size distribution. The resulting gel particles slightly swelled in an acidic environment. On the other hand, the gel particles drastically swelled under simultaneous weakly acidic and reducing conditions because of the ionization of tertiary amino groups in the gel network and a decrease in the cross-linking density resulting from cleavage of the disulfide cross-links. When cells were treated with the gel particles, they were taken up by cells via the endocytosis pathway and distributed in the cytosol after endosomal escape by the proton sponge effect. In addition, a hydrophobic drug, doxorubicin (Dox), was loaded into the gel particles through hydrophobic interactions. Dox was released from the gel particles under weakly acidic and reducing conditions, while the Dox release was inhibited at neutral pH. The weakly acidic pH- and reduction stimuli-responsive release of Dox from gel particles was attributed to the drastic swelling of these particles. The fascinating properties of the dual stimuli-responsive gel particles suggest that they can provide a useful platform for designing intracellular drug delivery carriers.
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Affiliation(s)
- Akifumi Kawamura
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
- Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Ayaka Harada
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Shunsuke Ueno
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Takashi Miyata
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
- Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
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12
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Reversed-phase pH gradient thin-layer chromatography of biologically active substances with controlled developing solvent velocity. J Chromatogr A 2021; 1649:462224. [PMID: 34038787 DOI: 10.1016/j.chroma.2021.462224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 11/23/2022]
Abstract
For the first time, stepwise pH gradient thin-layer chromatograms of biologically active substances with controlled developing solvent velocity are presented and described in the paper. Change in buffer pH of the mobile phase solution influences retardation, selectivity, and shape of the separated substances' spots. The conducted research has confirmed that the mobile phase's pH gradient could be an essential factor to optimize the conditions of the separation of substances in reversed-phase high-performance thin-layer chromatography. The reproducibility of the gradient retardation factor values of separated substance zones is satisfactory.
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Tan S, Saito K, Hearn MTW. Isothermal modelling of protein adsorption to thermo-responsive polymer grafted Sepharose Fast Flow sorbents. J Sep Sci 2021; 44:1884-1892. [PMID: 33650274 DOI: 10.1002/jssc.202001188] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/31/2021] [Accepted: 02/24/2021] [Indexed: 12/20/2022]
Abstract
In this study, five adsorption isotherm models, that is, the Langmuir, Freundlich, Langmuir-Freundlich, Temkin and Brunauer-Emmett-Teller isotherms, were utilized for the analysis of the experimental adsorption data for six classes of poly(N-isopropylacrylamide)-based thermo-responsive copolymer-grafted Sepharose Fast Flow sorbents of different copolymer compositions with two structurally related proteins, namely bovine holo-lactoferrin and bovine holo-transferrin at 20 and 50°C. The experimental data for bovine holo-lactoferrin could be mathematically fitted to the Freundlich and Temkin isotherms when the protein feed concentrations were in the range of 1-40 mg/mL at both 20 and 50°C. Similar analysis of the binding of the homologous protein, bovine holo-transferrin, to the same thermo-responsive copolymer-grafted sorbents revealed that the experimental data could be fitted to the Langmuir, Freundlich and Temkin isotherms with coefficients of determination value over 0.90.
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Affiliation(s)
- Sinuo Tan
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
| | - Kei Saito
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
| | - Milton T W Hearn
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
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14
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Themelis T, Amini A, De Vos J, Eeltink S. Towards spatial comprehensive three-dimensional liquid chromatography: A tutorial review. Anal Chim Acta 2021; 1148:238157. [DOI: 10.1016/j.aca.2020.12.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 01/19/2023]
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15
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Ofridam F, Tarhini M, Lebaz N, Gagnière É, Mangin D, Elaissari A. pH
‐sensitive polymers: Classification and some fine potential applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5230] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabrice Ofridam
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Émilie Gagnière
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Denis Mangin
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
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16
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Tan S, Saito K, Hearn MTW. Adsorption of a Humanized Monoclonal Antibody onto Thermoresponsive Copolymer-Grafted Sepharose Fast Flow Sorbents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1054-1061. [PMID: 33448225 DOI: 10.1021/acs.langmuir.0c02675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The batch adsorption behavior of a humanized monoclonal antibody (hIgG2 mAb) with thermoresponsive polymer (TRP)-modified Sepharose Fast Flow sorbents with different compositions of grafted copolymers is described. At high protein loadings, the adsorption with negatively charged copolymer-modified sorbents exhibited S-shaped isotherms in most cases, indicative of unrestricted multilayer adsorption. The adsorption capacity of the negatively charged copolymer-modified sorbents increased with an increase in the applied environmental temperature due to increased protein-sorbent surface hydrophobic and electrostatic interactions. The affinity of the hIgG2 mAb for a positively charged copolymer-grafted sorbent was much lower than that found for the negatively charged copolymer-grafted sorbents at both 20 and 50 °C due to electrostatic repulsive effects. This study has documented that the molecular functionalities of the grafted copolymer can significantly affect the adsorption behavior of this humanized mAb at both 20 and 50 °C with the isothermal dependencies revealing subtle effects due to copolymer composition.
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Affiliation(s)
- Sinuo Tan
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Kei Saito
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Milton T W Hearn
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
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Zhang H, Wang L, Dong P, Mao S, Mao P, Liu G. Photolysis of the BODIPY dye activated by pillar[5]arene. RSC Adv 2021; 11:7454-7458. [PMID: 35423231 PMCID: PMC8694983 DOI: 10.1039/d0ra08611h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022] Open
Abstract
Here, a pseudo[3]rotaxane comprising a fluorescent BODIPY derivative and pillar[5]arene was conveniently fabricated via host–guest complexation. Importantly, in this system, the efficient photodecomposition of the BODIPY derivative in the presence of pillar[5]arene was witnessed upon irradiation at 311 nm light, which was demonstrated via UV-Vis absorption, fluorescence emission, NMR and HR-MS spectroscopy techniques, but the only BODIPY dye in the absence of pillar[5]arene couldn't undergo photodegradation. We demonstrated that pillar[5]arene could act as an activator to trigger the photodegradation reaction of BODIPY derivatives via free radical reactions even without supramolecular interactions. The present results provide a new strategy for the efficient photolysis of organic dyes. Here, a pseudo[3]rotaxane comprising a fluorescent BODIPY derivative and pillar[5]arene was conveniently fabricated via host–guest complexation.![]()
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Affiliation(s)
- Haifan Zhang
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Long Wang
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Puyang Dong
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Shuqiang Mao
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Pu Mao
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
| | - Guoxing Liu
- College of Chemistry and Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P. R. China
- College of Science
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González-Sálamo J, Ortega-Zamora C, Carrillo R, Hernández-Borges J. Application of stimuli-responsive materials for extraction purposes. J Chromatogr A 2020; 1636:461764. [PMID: 33316565 DOI: 10.1016/j.chroma.2020.461764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 12/21/2022]
Abstract
Stimuli-responsive materials, frequently designated as "smart/intelligent materials", can modify their structure or properties by either a biological, physical, or chemical stimulus which, if properly controlled, could be used for specific applications. Such materials have been studied and exploited in several fields, like electronics, photonics, controlled drugs administration, imaging and medical diagnosis, among others, as well as in Analytical Chemistry where they have been used as chromatographic stationary phases, as part of sensors and for extraction purposes. This review article pretends to provide an overview of the most recent applications of these materials (mostly polymeric materials) in sample preparation for extraction purposes, as well as to provide a general vision of the current state-of-the-art of this field, their potential use and future applications.
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Affiliation(s)
- Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n. 38206 San Cristóbal de La Laguna, España; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n. 38206 San Cristóbal de La Laguna, España.
| | - Cecilia Ortega-Zamora
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n. 38206 San Cristóbal de La Laguna, España
| | - Romen Carrillo
- Instituto de Productos Naturales y Agrobiología IPNA-CSIC. Avda. Astrofísico Fco. Sánchez, 3. 38206 San Cristóbal de La Laguna, España
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n. 38206 San Cristóbal de La Laguna, España; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n. 38206 San Cristóbal de La Laguna, España.
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Tan S, Campi EM, Boysen RI, Saito K, Hearn MTW. Batch binding studies with thermo-responsive polymer grafted sepharose 6 fast flow sorbents under different temperature and protein loading conditions. J Chromatogr A 2020; 1625:461298. [DOI: 10.1016/j.chroma.2020.461298] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 11/28/2022]
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Dutta C, Bishop LDC, Zepeda O J, Chatterjee S, Flatebo C, Landes CF. Imaging Switchable Protein Interactions with an Active Porous Polymer Support. J Phys Chem B 2020; 124:4412-4420. [PMID: 32441098 DOI: 10.1021/acs.jpcb.0c01807] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mechanistic details about how local physicochemistry of porous interfaces drives protein transport mechanisms are necessary to optimize biomaterial applications. Cross-linked hydrogels made of stimuli-responsive polymers have potential for active protein capture and release through tunable steric and chemical transformations. Simultaneous monitoring of dynamic changes in both protein transport and interfacial polymer structure is an experimental challenge. We use single-particle tracking (SPT) and fluorescence correlation spectroscopy Super-resolution Optical Fluctuation Imaging (fcsSOFI) to relate the switchable changes in size and structure of a pH-responsive hydrogel to the interfacial transport properties of a model protein, lysozyme. SPT analysis reveals the reversible switching of protein transport dynamics in and at the hydrogel polymer in response to pH changes. fcsSOFI allows us to relate tunable heterogeneity of the hydrogels and pores to reversible changes in the distribution of confined diffusion and adsorption/desorption. We find that physicochemical heterogeneity of the hydrogels dictates protein confinement and desorption dynamics, particularly at pH conditions in which the hydrogels are swollen.
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Affiliation(s)
- Chayan Dutta
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Logan D. C. Bishop
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Jorge Zepeda O
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
| | - Sudeshna Chatterjee
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Charlotte Flatebo
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Applied Physics Program, Rice University, Houston, Texas 77005, United States
| | - Christy F. Landes
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, HoustonTexas 77005, United States
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Dutta C, Bishop LDC, Zepeda O J, Chatterjee S, Flatebo C, Landes CF. Imaging Switchable Protein Interactions With an Active Porous Polymer Support. J Phys Chem A 2020. [DOI: 10.1021/acs.jpca.0c01807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alvarez-Lorenzo C, Grinberg VY, Burova TV, Concheiro A. Stimuli-sensitive cross-linked hydrogels as drug delivery systems: Impact of the drug on the responsiveness. Int J Pharm 2020; 579:119157. [DOI: 10.1016/j.ijpharm.2020.119157] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 12/19/2022]
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Selective recognition and enrichment of sterigmatocystin in wheat by thermo-responsive imprinted polymer based on magnetic halloysite nanotubes. J Chromatogr A 2020; 1619:460952. [PMID: 32057446 DOI: 10.1016/j.chroma.2020.460952] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/24/2020] [Accepted: 02/06/2020] [Indexed: 12/17/2022]
Abstract
Two thermo-responsive molecularly imprinted polymers (MHNTs@MIP and MCNTs@MIP) for the selective extraction of sterigmatocystin have been prepared on the surface of the magnetic halloysite nanotubes (MHNTs) and magnetic carbon nanotubes (MCNTs), respectively. 1, 8-dihydroxyanthraquinone, n-isopropyl acrylamide, methacrylic acid, ethylene dimethacrylate and dimethyl sulfoxide were used as the dummy template, thermo-sensitive functional monomer, co-monomer, cross-linker and porogen, respectively. The magnetic properties, adsorption properties as well as the temperature responsive behaviors of MHNTs@MIP and MCNTs@MIP were systematically studied and compared for the first time. Enough saturation magnetizations of MHNTs@MIP (9.42 emu/g) and MCNTs@MIP (10.54 emu/g) were obtained. MHNTs@MIP and MCNTs@MIP also showed controllable adsorption and release behaviors to sterigmatocystin in response to the temperature change (35 °C and 20 °C). Compared with MCNTs@MIP, MHNTs@MIP had higher adsorption affinity (KL = 0.120 L/mg), higher adsorption kinetic (K2 = 0.0100 g/(mg•min)) and higher imprinting factor (5.22) to sterigmatocystin. These results indicated that MHNTs@MIP was favorable adsorbent for the selective separation of sterigmatocystin. Furthermore, the elution conditions of MHNTs@MIP were optimized by response surface methodology. Under the optimal conditions, MHNTs@MIP coupled with high performance liquid chromatography were successfully applied to the selective recognition, purification, enrichment and detection of sterigmatocystin in wheat samples. The recoveries were calculated from 88.62% to 102.9% with RSDs less than 3.5 % and limit of detection of 1.1 μg/kg. This work provided a suitable carrier for the preparation of imprinted polymers and a practical approach for highly selective recognition and determination of analytes in real samples.
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Pang J, Gao Z, Tan H, Mao X, Xu J, Kong J, Hu X. Fabrication, Investigation, and Application of Light-Responsive Self-Assembled Nanoparticles. Front Chem 2019; 7:620. [PMID: 31572711 PMCID: PMC6751253 DOI: 10.3389/fchem.2019.00620] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 08/28/2019] [Indexed: 12/24/2022] Open
Abstract
Light-responsive materials have attracted increasing interest in recent years on account of their adjustable on-off properties upon specific light. In consideration of reversible isomerization transition for azobenzene (AZO), it was designed as a light-responsive domain for nanoparticles in this research. At the same time, the interaction between AZO domain and β-cyclodextrin (β-CD) domain was designed as a driving force to assemble nanoparticles, which was fabricated by two polymers containing AZO domain and β-CD domain, respectively. The formed nanoparticles were confirmed by Dynamic Light Scattering (DLS) results and Transmission Electron Microscope (TEM) images. An obvious two-phase structure was formed in which the outer layer of nanoparticles was composed of PCD polymer, as verified by 1HNMR spectroscopy. The efficient and effective light response of the nanoparticles, including quick responsive time, controllable and gradual recovered process and good fatigue resistance, was confirmed by UV-Vis spectroscopy. The size of the nanoparticle could be adjusted by polymer ratio and light irradiation, which was ascribed to its light-response property. Nanoparticles had irreversibly pH dependent characteristics. In order to explore its application as a nanocarrier, drug loading and in vitro release profile in different environment were investigated through control of stimuli including light or pH value. Folic acid (FA), as a kind of target fluorescent molecule with specific protein-binding property, was functionalized onto nanoparticles for precise delivery for anticancer drugs. Preliminary in vitro cell culture results confirmed efficient and effective curative effect for the nanocarrier on MCF-7 cells.
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Affiliation(s)
- Juan Pang
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Ziyu Gao
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Huaping Tan
- Biomaterials for Organogenesis Laboratory, School of Materials Science & Engineering, Nanjing University of Science & Technology, Nanjing, China
| | - Xincheng Mao
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Jialing Xu
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Jingyang Kong
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
| | - Xiaohong Hu
- School of Material Engineering, Jinling Institute of Technology, Nanjing, China
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26
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Impact of branching unit structure on the cloud point of highly branched polymers with lower critical solution temperature behavior. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Tan S, Saito K, Hearn MTW. Stimuli-responsive polymeric materials for separation of biomolecules. Curr Opin Biotechnol 2018; 53:209-223. [DOI: 10.1016/j.copbio.2018.02.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 10/17/2022]
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Wu L, Zhang X, Chen L, Zhang H, Li C, Lv Y, Xu Y, Jia X, Shi Y, Guo X. Amphoteric starch derivatives as reusable flocculant for heavy-metal removal. RSC Adv 2018; 8:1274-1280. [PMID: 35540895 PMCID: PMC9077004 DOI: 10.1039/c7ra12798g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 12/22/2017] [Indexed: 01/22/2023] Open
Abstract
A pH-responsive amphoteric starch derivative (PRAS) bearing dual functional groups (amino and carboxyl groups) was prepared through etherification of starch with 2-chloro-4,6-diglycino-[1,3,5]-triazine. PRAS exhibits a reversible pH-response property in aqueous solution. The attractive property of PRAS is that it could be used as an effective flocculant for heavy metal-ion (e.g. Cu(ii) and Zn(ii)) removal from wastewater by changing pH. The transition of hydrophobicity–hydrophilicity would produce shrinkage of the polymer matrix, facilitating the release of heavy-metal ions from the saturated flocculant. As an ideal flocculant PRAS displayed outstanding stability and reproducibility, whose remove rate for Cu(ii) and Zn(ii) remained at 93% and 91% after three flocculation/regeneration cycles. A pH-responsive starch-based flocculants containing both cationic and anionic functional groups has been developed. The saturated flocculant can be facilely regenerated and separated from the solution by applying an external pH stimulus.![]()
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30
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Liu ZJ, Huang S, Ran YY, Chen J, Hu XM, Du HS, Wang J. Functionalization of Silica Microparticles with Multiple-Responsive Copolymers for Smart Controlled Chromatograph. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b04570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Jie Chen
- College
of Innovation and Entrepreneurship Education, Chongqing University of Post and Telecommunications, Chongqing 400065, China
| | | | | | - Jin Wang
- Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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31
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Temperature-responsive copolymeric hydrogel systems synthetized by ionizing radiation. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.01.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Li G, Row KH. Recent Applications of Molecularly Imprinted Polymers (MIPs) on Micro-extraction Techniques. SEPARATION AND PURIFICATION REVIEWS 2017. [DOI: 10.1080/15422119.2017.1315823] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Guizhen Li
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, Korea
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering, Inha University, Incheon, Korea
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33
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Fernández P, González M, Regenjo M, Ares A, Fernández A, Lorenzo R, Carro A. Analysis of drugs of abuse in human plasma using microextraction by packed sorbents and ultra-high-performance liquid chromatography. J Chromatogr A 2017; 1485:8-19. [DOI: 10.1016/j.chroma.2017.01.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/23/2016] [Accepted: 01/07/2017] [Indexed: 01/25/2023]
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34
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Haq MA, Su Y, Wang D. Mechanical properties of PNIPAM based hydrogels: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:842-855. [PMID: 27770962 DOI: 10.1016/j.msec.2016.09.081] [Citation(s) in RCA: 275] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/13/2016] [Accepted: 09/29/2016] [Indexed: 11/26/2022]
Abstract
Materials which adjust their properties in response to environmental factors such as temperature, pH and ionic strength are rapidly evolving and known as smart materials. Hydrogels formed by smart polymers have various applications. Among the smart polymers, thermoresponsive polymer poly(N-isopropylacrylamide)(PNIPAM) is very important because of its well defined structure and property specially its temperature response is closed to human body and can be finetuned as well. Mechanical properties are critical for the performance of stimuli responsive hydrogels in diverse applications. However, native PNIPAM hydrogels are very fragile and hardly useful for any practical purpose. Intense researches have been done in recent decade to enhance the mechanical features of PNIPAM hydrogel. In this review, several strategies including interpenetrating polymer network (IPN), double network (DN), nanocomposite (NC) and slide ring (SR) hydrogels are discussed in the context of PNIPAM hydrogel.
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Affiliation(s)
- Muhammad Abdul Haq
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; Laboratory of Food Engineering, Department of Food Science & Technology, University of Karachi, Karachi, Pakistan
| | - Yunlan Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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Rodríguez-Dorado R, Carro AM, Chianella I, Karim K, Concheiro A, Lorenzo RA, Piletsky S, Alvarez-Lorenzo C. Oxytetracycline recovery from aqueous media using computationally designed molecularly imprinted polymers. Anal Bioanal Chem 2016; 408:6845-56. [PMID: 27488280 DOI: 10.1007/s00216-016-9811-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/11/2016] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
Polymers for recovery/removal of the antimicrobial agent oxytetracycline (OTC) from aqueous media were developed with use of computational design and molecular imprinting. 2-Hydroxyethyl methacrylate, 2-acrylamide-2-methylpropane sulfonic acid (AMPS), and mixtures of the two were chosen according to their predicted affinity for OTC and evaluated as functional monomers in molecularly imprinted polymers and nonimprinted polymers. Two levels of AMPS were tested. After bulk polymerization, the polymers were crushed into particles (200-1000 μm). Pressurized liquid extraction was implemented for template removal with a low amount of methanol (less than 20 mL in each extraction) and a few extractions (12-18 for each polymer) in a short period (20 min per extraction). Particle size distribution, microporous structure, and capacity to rebind OTC from aqueous media were evaluated. Adsorption isotherms obtained from OTC solutions (30-110 mg L(-1)) revealed that the polymers prepared with AMPS had the highest affinity for OTC. The uptake capacity depended on the ionic strength as follows: purified water > saline solution (0.9 % NaCl) > seawater (3.5 % NaCl). Polymer particles containing AMPS as a functional monomer showed a remarkable ability to clean water contaminated with OTC. The usefulness of the stationary phase developed for molecularly imprinted solid-phase extraction was also demonstrated. Graphical Abstract Selection of functional monomers by molecular modeling renders polymer networks suitable for removal of pollutants from contaminated aqueous environments, under either dynamic or static conditions.
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Affiliation(s)
- Rosalía Rodríguez-Dorado
- Departamento de Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132 I-84084, Fisciano, SA, Italy
| | - Antonia M Carro
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Avenida de las Ciencias s/n, 15782, Santiago de Compostela, Spain
| | - Iva Chianella
- Cranfield Biotechnology Centre, Cranfield University, Bedford, MK45 4DT, UK
| | - Kal Karim
- Chemistry Department, College of Science and Engineering, University of Leicester, Leicester, LE1 7RH, UK
| | - Angel Concheiro
- Departamento de Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Rosa A Lorenzo
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Avenida de las Ciencias s/n, 15782, Santiago de Compostela, Spain
| | - Sergey Piletsky
- Chemistry Department, College of Science and Engineering, University of Leicester, Leicester, LE1 7RH, UK
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia, and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
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Peng H, Luo M, Xiong H, Yu N, Ning F, Fan J, Zeng Z, Li J, Chen L. Preparation of photonic-magnetic responsive molecularly imprinted microspheres and their application to fast and selective extraction of 17β-estradiol. J Chromatogr A 2016; 1442:1-11. [DOI: 10.1016/j.chroma.2016.03.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/27/2016] [Accepted: 03/02/2016] [Indexed: 01/13/2023]
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37
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Studies on the application of temperature-responsive ion exchange polymers with whey proteins. J Chromatogr A 2016; 1438:113-22. [DOI: 10.1016/j.chroma.2016.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 11/23/2022]
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38
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Guo S, Liu X, Yao C, Lu C, Chen Q, Hu XY, Wang L. Photolysis of a bola-type supra-amphiphile promoted by water-soluble pillar[5]arene-induced assembly. Chem Commun (Camb) 2016; 52:10751-4. [DOI: 10.1039/c6cc05993g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel monolayer supramolecular vesicle assembled from a pillararene-based bola-type supra-amphiphile was successfully constructed, which showed excellent photodegradable properties and might have potential applications in phototherapy.
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Affiliation(s)
- Shuwen Guo
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Xin Liu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chenhao Yao
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chengxi Lu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Qingxin Chen
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Xiao-Yu Hu
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Leyong Wang
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
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