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Patri S, Thanh NTK, Kamaly N. Magnetic iron oxide nanogels for combined hyperthermia and drug delivery for cancer treatment. NANOSCALE 2024; 16:15446-15464. [PMID: 39113663 DOI: 10.1039/d4nr02058h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Hyperthermia and chemotherapy represent potential modalities for cancer treatments. However, hyperthermia can be invasive, while chemotherapy drugs often have severe side effects. Recent clinical investigations have underscored the potential synergistic efficacy of combining hyperthermia with chemotherapy, leading to enhanced cancer cell killing. In this context, magnetic iron oxide nanogels have emerged as promising candidates as they can integrate superparamagnetic iron oxide nanoparticles (IONPs), providing the requisite magnetism for magnetic hyperthermia, with the nanogel scaffold facilitating smart drug delivery. This review provides an overview of the synthetic methodologies employed in fabricating magnetic nanogels. Key properties and designs of these nanogels are discussed and challenges for their translation to the clinic and the market are summarised.
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Affiliation(s)
- Sofia Patri
- Department of Materials, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, UK.
| | - Nguyen Thi Kim Thanh
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK.
- Biophysic Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK
| | - Nazila Kamaly
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Ln, London W12 0BZ, UK.
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2
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Suryavanshi P, Mahajan S, Banerjee SK, Seth K, Banerjee S. Synthesis and characterization of a pH/temperature-dual responsive hydrogel with promising biocompatibility features for stimuli-responsive 5-FU delivery. J Mater Chem B 2024; 12:5098-5110. [PMID: 38700289 DOI: 10.1039/d4tb00168k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
The tunable properties of stimuli-responsive copolymers or hydrogels enable their application in different fields such as biomedical engineering, tissue engineering, or even drug release. Here we introduce a new PNIPAM-based triblock copolymer material comprising a controlled amount of a novel hydrophobic crosslinker 2,4'-diacryloyloxy benzophenone (DABP) and acrylic acid (AAc) to achieve lower critical solution temperature (LCST) between ambient and body temperatures. The dual stimuli-responsive p(NIPAM-co-DABP-co-AAc) triblock copolymer material and hydrogel were synthesized, and their temperature and pH-responsive behaviors were systematically investigated. The hydrogel exhibited excellent temperature and pH-responsive properties with an LCST of around 30 °C. Moreover, the synthesized copolymer has been demonstrated to be nontoxic both in vitro and in vivo. When the hydrogel was preloaded with the model drug 5-fluorouracil (5-FU), the designed hydrogel released the drug in a temperature and pH-controlled fashion. It was observed that the prepared hydrogel has the ability to entrap 5-FU, and the loading is more than 85%. In the case of temperature-controlled release, we observed almost complete release of 5-FU at lower temperatures and sustained release behavior at higher temperatures. In addition, the hydrogel matrix was able to retard the release of 5-FU in an acidic environment and selectively release 5-FU in a basic environment. By realizing how the hydrogel properties influence the release of drugs from preloaded hydrogels, it is possible to design new materials with myriad applications in the drug delivery field.
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Affiliation(s)
- Purushottam Suryavanshi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Guwahati, Changsari 781101, Assam, India.
| | - Shriram Mahajan
- Department of Biotechnology, NIPER-Guwahati, Changsari 781101, Assam, India
| | - Sanjay K Banerjee
- Department of Biotechnology, NIPER-Guwahati, Changsari 781101, Assam, India
| | - Kapileswar Seth
- Department of Medicinal Chemistry, NIPER-Guwahati, Changsari 781101, Assam, India.
| | - Subham Banerjee
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Guwahati, Changsari 781101, Assam, India.
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Zhang K, Barbieri E, LeBarre J, Rameez S, Mostafa S, Menegatti S. Peptonics: A new family of cell-protecting surfactants for the recombinant expression of therapeutic proteins in mammalian cell cultures. Biotechnol J 2024; 19:e2300261. [PMID: 37844203 DOI: 10.1002/biot.202300261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/08/2023] [Accepted: 10/05/2023] [Indexed: 10/18/2023]
Abstract
Polymer surfactants are key components of cell culture media as they prevent mechanical damage during fermentation in stirred bioreactors. Among cell-protecting surfactants, Pluronics are widely utilized in biomanufacturing to ensure high cell viability and productivity. Monodispersity of monomer sequence and length is critical for the effectiveness of Pluronics-since minor deviations can damage the cells-but is challenging to achieve due to the stochastic nature of polymerization. Responding to this challenge, this study introduces Peptonics, a novel family of peptide and peptoid surfactants whose monomer composition and sequence are designed to achieve high cell viability and productivity at a fraction of chain length and cost of Pluronics. A designed ensemble of Peptonics was initially characterized via light scattering and tensiometry to select sequences whose phase behavior and tensioactivity align with those of Pluronics. Selected sequences were evaluated as cell-protecting surfactants using Chinese hamster ovary (CHO) cells expressing therapeutic monoclonal antibodies (mAb). Peptonics IH-T1010, ih-T1010, and ih-T1020 afforded high cell density (up to 3 × 107 cells mL-1 ) and viability (up to 95% within 10 days of culture), while reducing the accumulation of ammonia (a toxic metabolite) by ≈10% compared to Pluronic F-68. Improved cell viability afforded high mAb titer (up to 5.5 mg mL-1 ) and extended the production window beyond 14 days; notably, Peptonic IH-T1020 decreased mAb fragmentation and aggregation ≈5%, and lowered the titer of host cell proteins by 16% compared to Pluronic F-68. These features can improve significantly the purification of mAbs, thus increasing their availability at a lower cost to patients.
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Affiliation(s)
- Ka Zhang
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
- KBI Biopharma, Durham, North Carolina, USA
| | - Eduardo Barbieri
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
- LigaTrap Technologies LLC, Raleigh, North Carolina, USA
| | - Jacob LeBarre
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | | | | | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA
- LigaTrap Technologies LLC, Raleigh, North Carolina, USA
- Biomanufacturing Training and Education Center (BTEC), North Carolina State University, Raleigh, North Carolina, USA
- North Carolina Viral Vector Initiative in Research and Learning (NC-VVIRAL), North Carolina State University, Raleigh, North Carolina, USA
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Chen J, Tian G, Liang C, Yang D, Zhao Q, Liu Y, Qi D. Liquid metal-hydrogel composites for flexible electronics. Chem Commun (Camb) 2023; 59:14353-14369. [PMID: 37916888 DOI: 10.1039/d3cc04198k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
As an emerging functional material, liquid metal-hydrogel composites exhibit excellent biosafety, high electrical conductivity, tunable mechanical properties and good adhesion, thus providing a unique platform for a wide range of flexible electronics applications such as wearable devices, medical devices, actuators, and energy conversion devices. Through different composite methods, liquid metals can be integrated into hydrogel matrices to form multifunctional composite material systems, which further expands the application range of hydrogels. In this paper, we provide a brief overview of the two materials: hydrogels and liquid metals, and discuss the synthesis method of liquid metal-hydrogel composites, focusing on the improvement of the performance of hydrogel materials by liquid metals. In addition, we summarize the research progress of liquid metal-hydrogel composites in the field of flexible electronics, pointing out the current challenges and future prospects of this material.
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Affiliation(s)
- Jianhui Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Gongwei Tian
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Cuiyuan Liang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Dan Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Qinyi Zhao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Yan Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
| | - Dianpeng Qi
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
- Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases, Ministry of Industry and Information Technology, Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450046, P. R. China
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Aizarna-Lopetegui U, García-Astrain C, Renero-Lecuna C, González-Callejo P, Villaluenga I, Del Pozo MA, Sánchez-Álvarez M, Henriksen-Lacey M, Jimenez de Aberasturi D. Remodeling arteries: studying the mechanical properties of 3D-bioprinted hybrid photoresponsive materials. J Mater Chem B 2023; 11:9431-9442. [PMID: 37655486 DOI: 10.1039/d3tb01480k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
3D-printed cell models are currently in the spotlight of medical research. Whilst significant advances have been made, there are still aspects that require attention to achieve more realistic models which faithfully represent the in vivo environment. In this work we describe the production of an artery model with cyclic expansive properties, capable of mimicking the different physical forces and stress factors that cells experience in physiological conditions. The artery wall components are reproduced using 3D printing of thermoresponsive polymers with inorganic nanoparticles (NPs) representing the outer tunica adventitia, smooth muscle cells embedded in extracellular matrix representing the tunica media, and finally a monolayer of endothelial cells as the tunica intima. Cyclic expansion can be induced thanks to the inclusion of photo-responsive plasmonic NPs embedded within the thermoresponsive ink composition, resulting in changes in the thermoresponsive polymer hydration state and hence volume, in a stimulated on-off manner. By changing the thermoresponsive polymer composition, the transition temperature and pulsatility can be efficiently tuned. We show the direct effect of cyclic expansion and contraction on the overlying cell layers by analyzing transcriptional changes in mechanoresponsive mesenchymal genes associated with such microenvironmental physical cues. The technique described herein involving stimuli-responsive 3D printed tissue constructs, also described as four- dimensional (4D) printing, offers a novel approach for the production of dynamic biomodels.
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Affiliation(s)
- Uxue Aizarna-Lopetegui
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
- Department of Applied Chemistry, University of the Basque Country, 20018 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Clara García-Astrain
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN, ISCIII), 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Carlos Renero-Lecuna
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN, ISCIII), 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Patricia González-Callejo
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
| | - Irune Villaluenga
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Gipuzkoa, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Miguel A Del Pozo
- Mechanoadaptation and Caveolar Biology Laboratory, Novel Mechanisms of Atherosclerosis Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Miguel Sánchez-Álvarez
- Mechanoadaptation and Caveolar Biology Laboratory, Novel Mechanisms of Atherosclerosis Program, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- Department of Metabolic and Immunity Diseases, Instituto de Investigaciones Biomédicas "Alberto Sols", 28029 Madrid, Spain
| | - Malou Henriksen-Lacey
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN, ISCIII), 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Dorleta Jimenez de Aberasturi
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 194, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN, ISCIII), 20014 Donostia-San Sebastián, Gipuzkoa, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
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Maleic acid as an important monomer in synthesis of stimuli-responsive poly(acrylic acid-co-acrylamide-co-maleic acid) superabsorbent polymer. Sci Rep 2023; 13:3511. [PMID: 36864105 PMCID: PMC9981600 DOI: 10.1038/s41598-023-30558-3] [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: 10/27/2022] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Poly(acrylic acid-co-acrylamide-co-maleic acid) (p(AA-co-AM-co-MA)) superabsorbent polymer was synthesized from acrylic acid (AA), acrylamide (AM), and maleic acid (MA) via free radical copolymerization. Results showed the presence of maleic acid in structure of superabsorbent has the key and superior role in creating a smart superabsorbent. The structure, morphology, and strength of the superabsorbent were characterized using FT-IR, TGA, SEM, and rheology analysis. The effect of different factors was investigated to determine the ability of water absorbency of the superabsorbent. According to optimized conditions, the water absorbency capacity of the superabsorbent in distilled water (DW) was 1348 g/g and in a solution containing 1.0 wt.% NaCl (SCS) was 106 g/g. The water retention ability of the superabsorbent was also investigated. The kinetic swelling of superabsorbent was identified by Fickian diffusion and Schott's pseudo-second-order model. Furthermore, the reusability of superabsorbent was studied in distilled water and saline solution. The ability of superabsorbent was investigated in simulated urea and glucose solutions, and very good results were obtained. The response ability of the superabsorbent was confirmed by swelling and shrinking behavior against changes of temperature, pH, and ionic strength.
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A New Design of Poly(N-Isopropylacrylamide) Hydrogels Using Biodegradable Poly(Beta-Aminoester) Crosslinkers as Fertilizer Reservoirs for Agricultural Applications. Gels 2023; 9:gels9020127. [PMID: 36826297 PMCID: PMC9956257 DOI: 10.3390/gels9020127] [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: 01/07/2023] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Poly(N-isopropylacrylamide) (P(NIPAAm)) hydrogels were prepared by free-radical polymerization with biodegradable poly (β-amino ester) (PBAE) crosslinkers at 1 wt% and 3 wt% ratio, and compared with conventional N,N'-methylene bisacrylamide (MBA)-crosslinked hydrogel. The influence of the type, molecular weight, and diacrylate/amine ratio of the crosslinker on the crosslink density, compressive strength, and swelling and biodegradation behavior of the hydrogels was investigated. The hydrogels synthesized with lower molecular weight PBAE crosslinkers showed higher crosslinking degrees and compressive strength and lower swelling ratios. To reveal the controlled release behavior of the fertilizer, KNO3 was used as the model, and its loading and release behavior from these hydrogels was also examined. The N/T5/1 sample with 1.5/1.0 diacrylate/amine molar ratio and 1 wt% PBAE ratio demonstrated the most controlled release of KNO3 with 66.9% after 18 days in soil. In addition, the hydrogel with the porosity of 71.65% and crosslinking degree of 2.85 × 10-5 mol cm-3 showed a swelling ratio of 69.44 g/g, biodegradation rate of 23.9%, and compressive strength of 1.074 MPa. Thus, it can be concluded that the new designed biodegradable P(NIPAAm) hydrogels can be promising materials as nitrate fertilizer reservoirs and also for controlled fertilizer release in soil media for agricultural applications.
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Fatima M, Sheikh A, Abourehab MAS, Kesharwani P. Advancements in Polymeric Nanocarriers to Mediate Targeted Therapy against Triple-Negative Breast Cancer. Pharmaceutics 2022; 14:2432. [PMID: 36365249 PMCID: PMC9695386 DOI: 10.3390/pharmaceutics14112432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a destructive disease with a poor prognosis, low survival rate and high rate of metastasis. It comprises 15% of total breast cancers and is marked by deficiency of three important receptor expressions, i.e., progesterone, estrogen, and human epidermal growth factor receptors. This absence of receptors is the foremost cause of current TNBC therapy failure, resulting in poor therapeutic response in patients. Polymeric nanoparticles are gaining much popularity for transporting chemotherapeutics, genes, and small-interfering RNAs. Due to their exclusive properties such as great stability, easy surface modification, stimuli-responsive and controlled drug release, ability to condense more than one therapeutic moiety inside, tumor-specific delivery of payload, enhanced permeation and retention effect, present them as ideal nanocarriers for increasing efficacy, bioavailability and reducing the toxicity of therapeutic agents. They can even be used as theragnostic agents for the diagnosis of TNBC along with its treatment. In this review, we discuss the limitations of already existing TNBC therapies and highlight the novel approach to designing and the functionalization of polymeric nanocarriers for the effective treatment of TNBC.
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Affiliation(s)
- Mahak Fatima
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Afsana Sheikh
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Mohammed A. S. Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai 602105, India
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Xiao Z, Sun P, Liu H, Zhao Q, Niu Y, Zhao D. Stimulus responsive microcapsules and their aromatic applications. J Control Release 2022; 351:198-214. [PMID: 36122896 DOI: 10.1016/j.jconrel.2022.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/09/2022] [Accepted: 09/11/2022] [Indexed: 10/31/2022]
Abstract
Fragrances and essential oils are promising for a wide range of applications due to their pleasant odors and diverse effects. However, direct addition to consumer products has the disadvantages of short retention time and easy deterioration of odor. At the same time, releasing a large amount of odor in a short time may be an unpleasant experience, which severely limits the practical application of aromatic substances. Microencapsulation perfectly solves these problems. Stimuli-responsive microcapsules, which combine environmental stimulation with microencapsulation, can not only effectively prevent the rapid decomposition and evaporation of aroma components, but also realize the "on-off" intelligent release of aroma substances to environmental changes, which have great promise in the field of fragrances. In this review, the application of stimuli-responsive microcapsules in fragrances is highlighted. Firstly, various encapsulation materials used to prepare stimuli-responsive aromatic microcapsules are described, mainly including some natural polymers, synthetic polymers, and inorganic materials. Subsequently, there is a detailed description of the common release mechanisms of stimuli-responsive aromatic microcapsules are described in detail. Finally, the application and future research directions are given for stimuli-responsive aromatic microcapsules in new textiles, food, paper, and leather.
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Affiliation(s)
- Zuobing Xiao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China; School of Agriculture and Biology, Shanghai Jiaotong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Pingli Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Huiqin Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Qixuan Zhao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Yunwei Niu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Di Zhao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China.
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Wang H, Ullah A. Synthesis and Evaluation of Thermoresponsive Renewable Lipid-Based Block Copolymers for Drug Delivery. Polymers (Basel) 2022; 14:polym14173436. [PMID: 36080511 PMCID: PMC9460350 DOI: 10.3390/polym14173436] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/18/2022] [Accepted: 08/21/2022] [Indexed: 11/16/2022] Open
Abstract
Polymeric micelle forming from self-assembly of amphiphilic macromolecules is one of the most potent drug delivery systems. Fatty acids, naturally occurring hydrophobic lipid components, can be considered as potential candidates for the fabrication of block copolymer micelles. However, examples of synthesis of responsive block copolymers using renewable fatty acids are scarce. Herein, we report the synthesis, characterization and testing of block copolymer micelles composed of a renewable fatty-acid-based hydrophobic block and thermoresponsive hydrophilic block for controlled drug delivery. The block copolymers of functionalized fatty acid and poly(N-isopropylacrylamide) (PNIPAM) were prepared via consecutive microwave-assisted reversible addition fragmentation chain transfer (RAFT) polymerization. The block copolymers with variable hydrophobic block length self-assembled in aqueous media and formed spherical nanoparticles of ~30 nm with low critical micelle concentration (CMC). To demonstrate the proof-of-concept, carbamazepine (CBZ) was used as a hydrophobic model drug to evaluate the performance of these micelles as nanocarriers. The in vitro drug release tests were carried out below (25 °C) and above (37 °C) the lower critical solution temperature (LCST) of the block copolymer. The drug release showed obvious temperature-triggered response and an accelerated drug release at 37 °C.
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11
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Xu X, Sun J, Bing L, Cui X, Jia B, Bai S. Fractal features of dual temperature/pH-sensitive poly(N-isopropylacrylamide-co-acrylic acid) hydrogels and resultant effects on the controlled drug delivery performances. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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12
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Fabrication and Phase Behavior of Thermo- and/or pH-Responsive Polymer-Grafted SiO2 Nanoparticles. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three series of thermo- and/or pH-responsive polymer-grafted SiO2 nanoparticles, SiO2-graft-poly(oligo(ethylene glycol) methacrylate) (SiO2-g-POEGMA), SiO2-graft-poly(acrylic acid) (SiO2-g-PAA) and SiO2-graft-poly(oligo(ethylene glycol) methacrylate-state-acrylic acid (SiO2-g-P(OEGMA-stat-AA)), were prepared by grafting POEGMA and/or PAA onto the surface of silica nanoparticles through the surface-initiated atom transfer radical polymerization (SI-ATRP). The lower critical solution temperature (LCST) of SiO2-g-POEGMA (MOEGMA = 300 g/mol) was found to be 64 °C. For SiO2-g-PAA nanoparticles, at the pH range from 8 to 12, the hydrodynamic diameter of the nanoparticles increases with increasing pH, and the zeta potential of SiO2-g-PAA nanoparticles is negatively charged and decreases with increasing pH. Owing to the thermo- and pH-responsive, the hydrodynamic diameters of SiO2-g-P(OEGMA-stat-AA) nanoparticles increase with the increasing pH, and the LCSTs of those nanoparticles increase with the increase of POEGMA content.
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Ross M, Hicks EA, Rambarran T, Sheardown H. Thermo-sensitivity and erosion of chitosan crosslinked poly[N-isopropylacrylamide-co-(acrylic acid)-co-(methyl methacrylate)] hydrogels for application to the inferior fornix. Acta Biomater 2022; 141:151-163. [PMID: 35081434 DOI: 10.1016/j.actbio.2022.01.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 12/16/2022]
Abstract
Thermo-gels based on chitosan crosslinked poly(N-isopropylacrylamide) were developed as alternatives to conventional eye drops for the sustained release of ketotifen fumarate in the treatment of allergic conjunctivitis. The thermo-gelling properties of the base polymer were altered prior to crosslinking with chitosan by incorporation of the hydrophilic and hydrophobic comonomers acrylic acid and methyl methacrylate respectively. Varying amounts of chitosan were incorporated by ionic interaction to produce polyelectrolyte complexes or by carbodiimide chemistry to produce covalently crosslinked networks. The lower critical solution temperature of all the chitosan crosslinked thermo-gels produced was below the surface temperature of the eye. All the chitosan crosslinked thermo-gels were found to have greater than 80% equilibrium water contents following gelation. The method and amount of chitosan incorporation allowed for tailor-ability of material rheologic properties, with full degradation occurring over a one-to-four-day period, and tailorable rates of release of 40-60% of the loaded allergy medication ketotifen fumarate. The chitosan crosslinked thermo-gels were demonstrated to be nontoxic both in vitro and in vivo. It was demonstrated that the synthesized materials could be applied to the inferior fornix of eye, sustaining a multiple day release of ketotifen fumarate, as an alternative to conventional eyedrops. STATEMENT OF SIGNIFICANCE: Topical eyedrops are the main treatment modality for anterior ocular conditions. However, due to the natural clearance mechanisms of the eye, topical eyedrops are well established to be largely ineffective as a method of drug delivery. Herein, we investigate a method of altering thermo-gel properties of an n-isopropylacrylamide based polymer to enable the incorporation of greater amounts of chitosan by different methods of crosslinking. By controlling the synthesis parameters, final material properties can be tailored to impart ideal spreading, retention on the eye, and the rate of degradation and drug release over several days. This work also focuses on studying the rheological properties of the chitosan crosslinked thermo-gels which has not been investigated previously.
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14
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Diao CC, Wu CC. Synthesis and Characterization of Thermosensitive P(NIPAAm- co-AAc)-Grafted Silica Nanocomposites for Smart Architectural Coatings. ACS OMEGA 2022; 7:8697-8705. [PMID: 35309424 PMCID: PMC8928337 DOI: 10.1021/acsomega.1c06776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
In this study, a new class of thermosensitive poly(N-isopropylacrylamide)-co-poly(acrylic acid) (P(NIPAAm-co-AAc))-grafted modified silica (m-silica) nanocomposites was prepared using a sol-gel technique. The addition of silica to P(NIPAAm-co-AAc) copolymer hydrogel has the potential to open up new applications in the development of thermosensitive building materials by leveraging the favorable thermal characteristics of P(NIPAAm-co-AAc). The silica was prepared using 3-aminopropyltriethoxysilane and 4,4'-azobis(4-cyanovaleric acid) to form the m-silica powder, which increased the adhesion between the organic and inorganic hybrid materials. The P(NIPAAm-co-AAc) copolymer hydrogel was mixed with the m-silica to form the P(NIPAAm-co-AAc)-grafted m-silica nanocomposites. Scanning electron microscopy, X-ray diffraction analysis, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and thermosensitive measurement were conducted to evaluate the structure and water-holding capacity of the nanocomposites. The results indicated that the P(NIPAAm-co-AAc)-grafted m-silica nanocomposites could retain water for more than 300 min at temperatures higher than the lower critical solution temperature. The P(NIPAAm-co-AAc)-grafted m-silica nanocomposites exhibited favorable thermosensitive properties and may therefore be applied in smart architectural coatings.
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Affiliation(s)
- Chien-Chen Diao
- Department
of Electronic Engineering, Kao Yuan University, Kaohsiung 82151, Taiwan, R.O.C.
| | - Chia-Ching Wu
- Department
of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C.
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15
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Ting MS, Vella J, Raos BJ, Narasimhan BN, Svirskis D, Travas-Sejdic J, Malmström J. Conducting polymer hydrogels with electrically-tuneable mechanical properties as dynamic cell culture substrates. BIOMATERIALS ADVANCES 2022; 134:112559. [PMID: 35527144 DOI: 10.1016/j.msec.2021.112559] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 01/06/2023]
Abstract
Hydrogels are a popular substrate for cell culture due to their mechanical properties closely resembling natural tissue. Stimuli-responsive hydrogels are a good platform for studying cell response to dynamic stimuli. Poly(N-isopropylacrylamide) (pNIPAM) is a thermo-responsive polymer that undergoes a volume-phase transition when heated to 32 °C. Conducting polymers can be incorporated into hydrogels to introduce electrically responsive properties. The conducting polymer, polypyrrole (PPy), has been widely studied as electrochemical actuators due to its electrochemical stability, fast actuation and high strains. We determine the volume-phase transition temperature of pNIPAM hydrogels with PPy electropolymerised with different salts as a film within the hydrogel network. We also investigate the electro-mechanical properties at the transition temperature (32 °C) and physiological temperature (37 °C). We show statistically significant differences in the Young's modulus of the hybrid hydrogel at elevated temperatures upon electrochemical stimulation, with a 5 kPa difference at the transition temperature. Furthermore, we show a three-fold increase in actuation at transition temperature compared to room temperature and physiological temperature, attributed to the movement of ions in/out of the PPy film that induce the volume-phase transition of the pNIPAM hydrogel. Furthermore, cell adhesion to the hybrid hydrogel was demonstrated with mouse articular chondrocytes.
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Affiliation(s)
- Matthew S Ting
- Department of Chemical and Materials Engineering, The University of Auckland, Auckland, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand; Polymer Biointerface Centre, The University of Auckland, Auckland, New Zealand
| | - Joseph Vella
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Brad J Raos
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Badri Narayanan Narasimhan
- Department of Chemical and Materials Engineering, The University of Auckland, Auckland, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Jadranka Travas-Sejdic
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand; Polymer Biointerface Centre, The University of Auckland, Auckland, New Zealand; School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Jenny Malmström
- Department of Chemical and Materials Engineering, The University of Auckland, Auckland, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand; Polymer Biointerface Centre, The University of Auckland, Auckland, New Zealand.
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16
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Kaur J, Gulati M, Kumar Jha N, Disouza J, Patravale V, Dua K, Kumar Singh S. Recent advances in developing polymeric micelles for treating cancer: breakthroughs and bottlenecks in their clinical translation. Drug Discov Today 2022; 27:1495-1512. [DOI: 10.1016/j.drudis.2022.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/04/2022] [Accepted: 02/08/2022] [Indexed: 12/22/2022]
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17
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In Vivo Biocompatible Self-Assembled Nanogel Based on Hyaluronic Acid for Aqueous Solubility and Stability Enhancement of Asiatic Acid. Polymers (Basel) 2021; 13:polym13234071. [PMID: 34883575 PMCID: PMC8659171 DOI: 10.3390/polym13234071] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/14/2021] [Accepted: 11/17/2021] [Indexed: 12/17/2022] Open
Abstract
Asiatic acid (AA), a natural triterpene found in Centalla asiatica, possesses polypharmacological properties that can contribute to the treatment and prophylaxis of various diseases. However, its hydrophobic nature and rapid metabolic rate lead to poor bioavailability. The aim of this research was to develop a thermoresponsive nanogel from hyaluronic acid (HA) for solubility and stability enhancement of AA. Poly(N-isopropylacrylamide) (pNIPAM) was conjugated onto HA using a carbodiimide reaction followed by 1H NMR characterization. pNIPAM-grafted HA (HA-pNIPAM) nanogels were prepared with three concentrations of polymer, 0.1, 0.15 and 0.25% w/v, in water by the sonication method. AA was loaded into the nanogel by the incubation method. Size, morphology, AA loading capacity and encapsulation efficiency (EE) were analyzed. In vitro cytocompatibility was evaluated in fibroblast L-929 cells using the PrestoBlue assay. Single-dose toxicity was studied using rats. HA-pNIPAM nanogels at a 4.88% grafting degree showed reversible thermo-responsive behavior. All nanogel formulations could significantly increase AA water solubility and the stability was higher in nanogels prepared with high polymer concentrations over 180 days. The cell culture study showed that 12.5 µM AA in nanogel formulations was considered non-toxic to the L-929 cells; however, a dose-dependent cytotoxic effect was observed at higher AA-loaded concentrations. In vivo study proved the non-toxic effect of AA loaded in HA-pNIPAM nanogels compared with the control. Taken together, HA-pNIPAM nanogel is a promising biocompatible delivery system both in vitro and in vivo for hydrophobic AA molecules.
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Stimuli-responsive electrospun nanofibers based on PNVCL-PVAc copolymer in biomedical applications. Prog Biomater 2021; 10:245-258. [PMID: 34731487 DOI: 10.1007/s40204-021-00168-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 10/01/2021] [Indexed: 10/19/2022] Open
Abstract
Poly(N-vinylcaprolactam) (PNVCL) is a suitable alternative for biomedical applications due to its biocompatibility, biodegradability, non-toxicity, and showing phase transition at the human body temperature range. The purpose of this study was to synthesize a high molecular weight PNVCL-PVAc thermo-responsive copolymer with broad mass distribution suitable for electrospun nanofiber fabrication. The chemical structure of the synthesized materials was detected by FTIR and 1HNMR spectroscopies. N-Vinyl caprolactam/vinyl acetate copolymers (159,680 molecular weight (g/mol) and 2.51 PDI) were synthesized by radical polymerization. The phase transition temperature of N-vinyl caprolactam/vinyl acetate copolymer was determined by conducting a contact angle test at various temperatures (25, 26, 28, and 30 [Formula: see text]). The biocompatibility of the nanofibers was also evaluated, and both qualitative and quantitative results showed that the growth and proliferation of 929L mouse fibroblast cells increased to 80% within 48 h. These results revealed that the synthesized nanofibers were biocompatible and not cytotoxic. The results confirmed that the synthesized copolymers have good characteristics for biomedical applications.
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19
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Gayathri V, Jaisankar SN, Samanta D. Temperature and pH responsive polymers: sensing applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1988636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Sellamuthu Nagappan Jaisankar
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Debasis Samanta
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
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20
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Porrang S, Rahemi N, Davaran S, Mahdavi M, Hassanzadeh B. Synthesis of temperature/pH dual-responsive mesoporous silica nanoparticles by surface modification and radical polymerization for anti-cancer drug delivery. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126719] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Asgari M, Soleymani M, Miri T, Barati A. Design of thermosensitive polymer‐coated magnetic mesoporous silica nanocomposites with a core‐shell‐shell structure as a magnetic/temperature dual‐responsive drug delivery vehicle. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Mahsa Asgari
- Department of Chemical Engineering, Faculty of Engineering Arak University Arak Iran
| | - Meysam Soleymani
- Department of Chemical Engineering, Faculty of Engineering Arak University Arak Iran
| | - Taghi Miri
- Department of Chemical Engineering, Faculty of Engineering Arak University Arak Iran
- School of Chemical Engineering University of Birmingham Birmingham UK
| | - Aboulfazl Barati
- Department of Chemical Engineering, Faculty of Engineering Arak University Arak Iran
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22
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Park Y, Hwang M, Kim M, Park E, Noda I, Jung YM. Characterization of the phase transition mechanism of P(NiPAAm-co-AAc) copolymer hydrogel using 2D correlation IR spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119525. [PMID: 33582435 DOI: 10.1016/j.saa.2021.119525] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/09/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
A thermo-responsive polymer, poly(N-isopropylacrylamide) (PNiPAAm), was copolymerized with acrylic acid (AAc) in this study. Its phase transitions during the heating and cooling processes were investigated using IR spectroscopy, principal component analysis (PCA), and two-dimensional correlation spectroscopy (2D-COS). During the heating process, the hydrogen bonding between side chain in P(NiPAAm-co-AAc) copolymer hydrogel and H2O was broken first, and then the formation of the intramolecular interaction in P(NiPAAm-co-AAc) copolymer hydrogel occurred. However, unlike the heating process, intensities of bands in the CH stretching region were changed before those in the CO stretching including the NH bending region during the cooling process. The results indicate that the phase transition of P(NiPAAm-co-AAc) copolymer hydrogel is an irreversible process at the molecular levels.
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Affiliation(s)
- Yeonju Park
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Myeongwon Hwang
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Minkyoung Kim
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Eungyeong Park
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Young Mee Jung
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea.
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23
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Park Y, Kim M, Chung HJ, Woo AH, Noda I, Jung YM. The Study of pH Effects on Phase Transition of Multi-Stimuli Responsive P(NiPAAm- co-AAc) Hydrogel Using 2D-COS. Polymers (Basel) 2021; 13:1447. [PMID: 33947128 PMCID: PMC8125589 DOI: 10.3390/polym13091447] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/24/2021] [Accepted: 04/27/2021] [Indexed: 01/23/2023] Open
Abstract
The temperature and mechanism of phase transition of poly(N-isopropylacrylamide-co-acrylic acid) [P(NiPAAm-co-AAc)], which is one of the multi-stimuli responsive polymers, were investigated at various pHs using infrared (IR) spectroscopy, two-dimensional (2D) gradient mapping, and two-dimensional correlation spectroscopy (2D-COS). The determined phase transition temperature of P(NiPAAm-co-AAc) at pH 4, 3, and 2 based on 2D gradient mapping and principal component analysis (PCA) showed that it decreases with decreasing pH, because COOH group in AAc changes with variation of pH. The results of 2D-COS analysis indicated that the phase transition mechanism of P(NiPAAm-co-AAc) hydrogel at pH4 is different from that at pH2 due to the effect of COOH group of AAc.
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Affiliation(s)
- Yeonju Park
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea;
| | - Minkyoung Kim
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea; (M.K.); (H.-j.C.); (A.-h.W.)
| | - Hae-jin Chung
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea; (M.K.); (H.-j.C.); (A.-h.W.)
| | - Ah-hyun Woo
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea; (M.K.); (H.-j.C.); (A.-h.W.)
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA;
| | - Young-mee Jung
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea;
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea; (M.K.); (H.-j.C.); (A.-h.W.)
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24
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Dutta D, Nath LK, Chakraborty P, Dutta D. Targeting Gemcitabine hydrochloride to tumor microenvironment through stimuli-responsive Nano-conjugate: Synthesis, characterization, and in vitro assessment. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Fischer T, Demco DE, Fechete R, Möller M, Singh S. Poly(vinylamine-co-N-isopropylacrylamide) linear polymer and hydrogels with tuned thermoresponsivity. SOFT MATTER 2020; 16:6549-6562. [PMID: 32617537 DOI: 10.1039/d0sm00408a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The fabrication of functional hydrogels with tuned thermoresponsivity is a major challenge. To meet this challenge we copolymerize N-isopropylacrylamide (NIPAm) with N-vinylformamide (NVF) in different ratios with the formamide group being subsequently selectively hydrolyzed to the corresponding amine (VAm). The copolymers are crosslinked with phenylcarbonate telechelic glycol. The influence of the NIPAm : VAm ratio on the thermoresponsitiviy is investigated in terms of absorbance, rheology, NMR spectroscopy, relaxometry, and diffusometry. Phase transition temperatures, change in the entropy of the polymer-water system, and width of the transition in the process of coil-to-globule and swollen-to-collapsed network transitions were evaluated by a two state model and Boltzmann sigmoidal function.
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Affiliation(s)
- Thorsten Fischer
- DWI-Leibniz-Institute for Interactive Materials, e.V., RWTH Aachen University, Forckenbeckstraße 50, D-52074 Aachen, Germany.
| | - Dan E Demco
- DWI-Leibniz-Institute for Interactive Materials, e.V., RWTH Aachen University, Forckenbeckstraße 50, D-52074 Aachen, Germany. and Technical University of Cluj-Napoca, Department of Physics and Chemistry, 25 G. Baritiu Str., RO-400027, Cluj-Napoca, Romania
| | - Radu Fechete
- Technical University of Cluj-Napoca, Department of Physics and Chemistry, 25 G. Baritiu Str., RO-400027, Cluj-Napoca, Romania
| | - Martin Möller
- DWI-Leibniz-Institute for Interactive Materials, e.V., RWTH Aachen University, Forckenbeckstraße 50, D-52074 Aachen, Germany.
| | - Smriti Singh
- DWI-Leibniz-Institute for Interactive Materials, e.V., RWTH Aachen University, Forckenbeckstraße 50, D-52074 Aachen, Germany.
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26
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Liu C, Sheng M, Wei T, Sun J, Bai S, Wu X. Core-shell structured assembly strategy of naphthalene anhydride derivatives and MPS-modified mesoporous SiO 2 with temperature-responsive property for controlled drug delivery with strong fluorescence. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1765363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Chang Liu
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
| | - Mengdi Sheng
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
| | - Tingting Wei
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
| | - Jihong Sun
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
| | - Shiyang Bai
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
| | - Xia Wu
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, China
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27
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Gupta S, Kataoka T, Watanabe M, Ishikiriyama M, Matsumi N. Fine‐tuning of phase behavior of oxazoline copolymer‐based organic–inorganic hybrids as solid‐supported sol–gel materials. J Appl Polym Sci 2019. [DOI: 10.1002/app.48163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Surabhi Gupta
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1‐1 Asahidai Nomi‐shi Ishikawa Japan
| | | | | | | | - Noriyoshi Matsumi
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1‐1 Asahidai Nomi‐shi Ishikawa Japan
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28
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Li X, Li X, Shi X, Peng M, Lu X. PNIPAM-based colloidal photonic crystals above phase transition temperature and its application in naked-eye glucose-detection. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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29
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30
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Dadfar SMR, Pourmahdian S, Tehranchi MM, Dadfar SM. Novel dual‐responsive semi‐interpenetrating polymer network hydrogels for controlled release of anticancer drugs. J Biomed Mater Res A 2019; 107:2327-2339. [DOI: 10.1002/jbm.a.36741] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 02/06/2023]
Affiliation(s)
| | - Saeed Pourmahdian
- Department of Polymer Engineering and Color TechnologyAmirkabir University of Technology Tehran Iran
- Laser and Plasma Research InstituteShahid Beheshti University Tehran Iran
| | - Mohammad Mehdi Tehranchi
- Laser and Plasma Research InstituteShahid Beheshti University Tehran Iran
- Department of PhysicsShahid Beheshti University Tehran Iran
| | - Seyed Mohammadali Dadfar
- Faculty of Medicine, Institute for Experimental Molecular ImagingRWTH Aachen University Aachen Germany
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31
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Hu W, Wang Z, Xiao Y, Zhang S, Wang J. Advances in crosslinking strategies of biomedical hydrogels. Biomater Sci 2019; 7:843-855. [PMID: 30648168 DOI: 10.1039/c8bm01246f] [Citation(s) in RCA: 390] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biomedical hydrogels as sole repair matrices or combined with pre-seeded cells and bioactive growth factors are extensively applied in tissue engineering and regenerative medicine. Hydrogels normally provide three dimensional structures for cell adhesion and proliferation or the controlled release of the loading of drugs or proteins. Various physiochemical properties of hydrogels endow them with distinct applications. In this review, we present the commonly used crosslinking method for hydrogel synthesis involving physical and chemical crosslinks and summarize their current progress and future perspectives.
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Affiliation(s)
- Weikang Hu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
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32
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Investigation of the Effects of Different Hydrophilic and Hydrophobic Comonomers on the Volume Phase Transition Temperatures and Thermal Properties of N-Isopropylacrylamide-Based Hydrogels. INT J POLYM SCI 2019. [DOI: 10.1155/2019/7324181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this work, a series of thermally responsive terpolymers of N-isopropylacrylamide (NIPA) with three different comonomer contents was synthesized, and their swelling behaviour was studied as a function of composition and temperature. Temperature-sensitive, random cross-linked terpolymers of NIPA were prepared from methyl methacrylate (MMA), N-tert-butylacrylamide (NTBA), and acrylic acid (AA) using a free radical polymerization method. In the synthesis of terpolymer hydrogels, N,N-methylene bisacrylamide (BIS) was used as cross-linkers and ammonium persulfate (APS) as initiator. The NIPA content of the monomer feed varied from 80 to 50 mol %, and other comonomer feed varied from 40 to 5 mol %. The swelling equilibrium of these hydrogels was studied as a function of temperature and hydrophobic and hydrophilic comonomer contents. The swelling properties of the polymers were investigated in pure water at temperatures from 10 to 80°C. All of the synthesized gels were found to be sensitive to temperature. Glass transition temperature analyses and thermal analyses of the synthesized hydrogels were studied. The volume phase transition temperature and the swelling equilibrium (r) values of NIPA-based hydrogels synthesized in different feed ratios and in varying monomer contents were found in the range of 17–52°C and 14–51 g H2O/g polymer, respectively. The glass temperature (Tg) of the NIPA/AA/(MMA or NTBA) hydrogels synthesized with feed ratios of 50/40/10 was found to be 133 or 142°C, respectively. The initial and the end degradation that were determined for hydrogels at high temperatures indicated the quite good thermal stability of hydrogels. When the mass loss of the synthesized hydrogels was 50%, the temperatures were measured between 247 and 258°C.
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33
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Kim YK, Kim EJ, Lim JH, Cho HK, Hong WJ, Jeon HH, Chung BG. Dual Stimuli-Triggered Nanogels in Response to Temperature and pH Changes for Controlled Drug Release. NANOSCALE RESEARCH LETTERS 2019; 14:77. [PMID: 30830486 PMCID: PMC6399374 DOI: 10.1186/s11671-019-2909-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/21/2019] [Indexed: 05/19/2023]
Abstract
Poly-N-isopropyl acrylamide (PNIPAM) nanogels have been modified with different acrylic acid (AAc) contents for the efficient control of lower critical solution temperature (LCST). In this study, PNIPAM-co-AAc nanogels nanogels showed two volume phase transitions in comparison with PNIPAM. The transition temperature of PNIPAM nanogels was increased with AAc contents. The controlled drug release performance of PNIPAM-co-AAc nanogels loaded with β-lapachone was attributed to the AAc content ratio and was efficiently triggered in response to temperature and pH. Moreover, a colorimetric cell proliferation assay and direct fluorescence-based live/dead staining were used to confirm the concurrence on drug release profiles. Finally, PNIPAM-co-AAc20 showed a relatively low level of drug release in the range of acidic to neutral pH at body temperature, while maximizing drug release at basic pH. Therefore, we demonstrated that the PNIPAM-based nanogel with the temperature- and pH-responsive features could be a promising nanocarrier for potential intestine-specific drug delivery.
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Affiliation(s)
- Yun Kyoung Kim
- Department of Biomedical Engineering, Sogang University, Seoul, 04107 South Korea
| | - Eun-Joong Kim
- Research Center, Sogang University, Seoul, 04107 South Korea
| | - Jae Hyun Lim
- Department of Biomedical Engineering, Sogang University, Seoul, 04107 South Korea
| | - Heui Kyoung Cho
- Cosmetic Research Center, Coway Co. Ltd., Seoul, 08502 South Korea
| | - Woo Jin Hong
- Cosmetic Research Center, Coway Co. Ltd., Seoul, 08502 South Korea
| | - Hyang Hwa Jeon
- Cosmetic Research Center, Coway Co. Ltd., Seoul, 08502 South Korea
| | - Bong Geun Chung
- Department of Mechanical Engineering, Sogang University, Seoul, 04107 South Korea
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34
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Mapping Nanoparticles in Hydrogels: A Comparison of Preparation Methods for Electron Microscopy. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The distribution of noble metal nanoparticles (NMNPs) in hydrogels influences their nanoplasmonic response and signals used for biosensor purposes. By controlling the particle distribution in NMNP-nanocomposite hydrogels, it is possible to obtain new nanoplasmonic features with new sensing modalities. Particle positions can be characterized by using volume-imaging methods such as the focused ion beam-scanning electron microscope (FIB-SEM) or the serial block-face scanning electron microscope (SBFSEM) techniques. The pore structures in hydrogels are contained by the water absorbed in the polymer network and may pose challenges for volume-imaging methods based on electron microscope techniques since the sample must be in a vacuum chamber. The structure of the hydrogels can be conserved by choosing appropriate preparation methods, which also depends on the composition of the hydrogel used. In this paper, we have prepared low-weight-percentage hydrogels, with and without gold nanorods (GNRs), for conventional scanning electron microscope (SEM) imaging by using critical point drying (CPD) and hexamethyldisilazane (HMDS) drying. The pore structures and the GNR positions in the hydrogel were characterized. The evaluation of the sample preparation techniques elucidate new aspects concerning the drying of hydrogels for SEM imaging. The results of identifying GNRs positioned in a hydrogel polymer network contribute to the development of mapping metal particle positions with volume imaging methods such as FIB-SEM or SBFSEM for studying nanoplasmonic properties of NMNP-nanocomposite hydrogels.
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Filippov AD, van Hees IA, Fokkink R, Voets IK, Kamperman M. Rapid and Quantitative De- tert-butylation for Poly(acrylic acid) Block Copolymers and Influence on Relaxation of Thermoassociated Transient Networks. Macromolecules 2018; 51:8316-8323. [PMID: 30405273 PMCID: PMC6202630 DOI: 10.1021/acs.macromol.8b01440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/19/2018] [Indexed: 01/24/2023]
Abstract
![]()
The
synthesis of charged polymers often requires the polymerization
of protected monomers, followed by a polymer-analogous reaction to
the polyelectrolyte product. We present a mild, facile method to cleave tert-butyl groups from poly(tert-butyl
acrylate) blocks that yields poly(acrylic acid) (pAA) blocks free
of traces of the ester. The reaction utilizes a slight excess of HCl
in hexafluoroisopropanol (HFIP) at room temperature and runs
to completion within 4 h. We compare deprotection in HFIP with the
common TFA/DCM method and show that the latter does not yield clean
pAA. We show the effect of complete tert-butyl cleavage
on a ABA triblock copolymer, where poly(N-isopropylacrylamide)
(pNIPAM) is A and pAA is B, by means of viscosimetry, DLS, and SAXS
on solutions above overlap. The pNIPAM blocks dehydrate, and their
increased self-affinity above the lower critical solution temperature
(LCST) results in network formation by the triblocks. This manifests
itself as an increase in viscosity and a slowing down of the first-order
correlation function in light scattering. However, this stickering
effect manifests itself exclusively when the pAA block is tert-butyl-free. Additionally, SAXS shows that the conformational
properties of tert-butyl-free pAA copolymers are
markedly different from those with residual esters. Thus, we illustrate
a surprising effect of hydrophobic impurities that act across blocks
and assert the usefulness of HCl/HFIP in pAA synthesis.
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Affiliation(s)
- Alexei D Filippov
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708WE Wageningen, The Netherlands
| | - Ilse A van Hees
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708WE Wageningen, The Netherlands
| | - Remco Fokkink
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708WE Wageningen, The Netherlands
| | - Ilja K Voets
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Marleen Kamperman
- Laboratory of Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708WE Wageningen, The Netherlands.,Zernike Institute of Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands
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36
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Tang S, Floy M, Bhandari R, Sunkara M, Morris AJ, Dziubla TD, Hilt JZ. Synthesis and Characterization of Thermoresponsive Hydrogels Based on N-Isopropylacrylamide Crosslinked with 4,4'-Dihydroxybiphenyl Diacrylate. ACS OMEGA 2017; 2:8723-8729. [PMID: 29302630 PMCID: PMC5748278 DOI: 10.1021/acsomega.7b01247] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/21/2017] [Indexed: 05/29/2023]
Abstract
A novel crosslinker [4,4'-dihydroxybiphenyl diacrylate (44BDA)] was developed, and a series of temperature-responsive hydrogels were synthesized through free radical polymerization of N-isopropylacrylamide (NIPAAm) with 44BDA. The temperature-responsive behavior of the resulting gels was characterized by swelling studies, and the lower critical solution temperature (LCST) of the hydrogels was characterized through differential scanning calorimetry. Increased content of 44BDA led to a decreased swelling ratio and shifted the LCST to lower temperatures. These novel hydrogels also displayed resiliency through multiple swelling-deswelling cycles, and their temperature responsiveness was reversible. The successful synthesis of NIPAAm-based hydrogels crosslinked with 44BDA has led to a new class of temperature-responsive hydrogel systems with a variety of potential applications.
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Affiliation(s)
- Shuo Tang
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Martha Floy
- Department
of Chemical Engineering, Kansas State University, 1005 Durland Hall 1701A Platt Street, Manhattan, Kansas 66506, United States
| | - Rohit Bhandari
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Manjula Sunkara
- Division
of Cardiovascular Medicine, The Gill Heart Institute, University of Kentucky, 741 S. Limestone Street, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Andrew J. Morris
- Division
of Cardiovascular Medicine, The Gill Heart Institute, University of Kentucky, 741 S. Limestone Street, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - Thomas D. Dziubla
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
| | - J. Zach Hilt
- Department
of Chemical and Materials Engineering, University
of Kentucky, 177 F. Paul
Anderson Tower, Lexington, Kentucky 40506, United
States
- Superfund
Research Center, University of Kentucky, 900 S. Limestone Street, Lexington, Kentucky 40536, United States
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37
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Yue Y, Fan Z, Zheng C, Ding L, Wang H, Zhang M, Deng K. Synthesis and properties of non-cytotoxic poly(l
-malic acid acetate-co
-l
-lysine ester)s with thermo-sensitivity as hydrophobic drug nanocarrier. J Appl Polym Sci 2017. [DOI: 10.1002/app.45984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ying Yue
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Zhihui Fan
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Chang Zheng
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Lan Ding
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Huiying Wang
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Miao Zhang
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
| | - Kuilin Deng
- Analytical Science and Technology Laboratory of Hebei Province, College of Chemistry and Environmental Science; Hebei University; Baoding, 071002 China
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38
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Development of Novel N-isopropylacrylamide (NIPAAm) Based Hydrogels with Varying Content of Chrysin Multiacrylate. Gels 2017; 3. [PMID: 29805968 PMCID: PMC5967267 DOI: 10.3390/gels3040040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A series of novel temperature responsive hydrogels were synthesized by free radical polymerization with varying content of chrysin multiacrylate (ChryMA). The goal was to study the impact of this novel polyphenolic-based multiacrylate on the properties of N-isopropylacrylamide (NIPAAm) hydrogels. The temperature responsive behavior of the copolymerized gels was characterized by swelling studies, and their lower critical solution temperature (LCST) was characterized through differential scanning calorimetry (DSC). It was shown that the incorporation of ChryMA decreased the swelling ratios of the hydrogels and shifted their LCSTs to a lower temperature. Gels with different ChryMA content showed different levels of response to temperature change. Higher content gels had a broader phase transition and smaller temperature response, which could be attributed to the increased hydrophobicity being introduced by the ChryMA.
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39
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Li X, Li X, Lu X. Synthesis and Characterization of Multifunctional Interpenetrating Polymer and Its Applications in Protein Adsorption and Magnetite Loading. ChemistrySelect 2017. [DOI: 10.1002/slct.201700878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoxiao Li
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
| | - Xueting Li
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
| | - Xihua Lu
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
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40
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Ma X, Liu Q. Preparation of poly(N-isopropylacrylamide)-block-(acrylic acid)-encapsulated proteinaceous microbubbles for delivery of doxorubicin. Colloids Surf B Biointerfaces 2017; 154:115-122. [PMID: 28334688 DOI: 10.1016/j.colsurfb.2017.03.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 03/04/2017] [Accepted: 03/07/2017] [Indexed: 12/24/2022]
Abstract
Inspired by theranostic technologies, we electrostatically loaded proteinaceous microbubbles (MBs) with a model drug, doxorubicin (Dox) to couple their utilizations in diagnostic imaging with drug loading. A temperature-sensitive polymer, poly(N-isopropylacrylamide-block-acrylic acid) (poly(NIPAM-b-AAc)) was used to encapsulate the Dox-loaded MBs to prevent premature release and to control the Dox release thermally. An LCST of 39°C, slightly higher than normal body temperatures, enables the release of Dox through a conformational change of the polymer shell upon moderate heating. The successive loadings of Dox and poly(NIPAM-b-AAc) were confirmed by fluorescent confocal laser scanning microscope (CLSM) imaging, zeta potential measurement, Fourier transform infrared spectroscopy (FTIR), and quartz crystal microbalance with dissipation (QCM-D). Without a polymer shell, Dox-loaded MBs showed a poor in vitro retention of Dox at room temperature, releasing ∼75% within 8h, whereas the polymer-shelled, Dox-loaded MBs did not show any premature release of Dox. From 37°C to 39°C, the cumulative release of Dox from the polymer-encapsulated MBs was increased from ∼20 to ∼90% over a period of 18h based on in vitro release testing (IVRT). However, the release profiles of Dox from the shell-free, Dox-loaded MBs did not exhibit any similar temperature-controlled behavior, releasing ∼90% of Dox within 5h at both 37°C and 39°C.
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Affiliation(s)
- Xiaochen Ma
- Department of Chemical and Materials Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, 9211 - 116 St NW, Edmonton, Canada T6G 1H9
| | - Qingxia Liu
- Department of Chemical and Materials Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, 9211 - 116 St NW, Edmonton, Canada T6G 1H9.
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41
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Tang S, Bhandari R, Delaney SP, Munson EJ, Dziubla TD, Hilt JZ. Synthesis and characterization of thermally responsive N-isopropylacrylamide hydrogels copolymerized with novel hydrophobic polyphenolic crosslinkers. MATERIALS TODAY. COMMUNICATIONS 2017; 10:46-53. [PMID: 28989952 PMCID: PMC5628756 DOI: 10.1016/j.mtcomm.2016.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Two series of thermosensitive hydrogels were synthesized by copolymerizing N-isopropylacrylamide (NIPAAm) with various contents of novel hydrophobic crosslinkers, curcumin multiacrylate (CMA) and quercetin multiacrylate (QMA). The compositions of the resulting hydrogels were characterized using solid state-NMR (ss-NMR), and the temperature dependent swelling behavior and lower critical solution temperature (LCST) were characterized using swelling studies and differential scanning calorimetry (DSC). Increasing the crosslinker content resulted in a significant decrease in the LCST and swelling ratio of hydrogels, which could be attributed to the increased hydrophobicity introduced by CMA or QMA. All of the hydrogels demonstrated temperature responsive swelling with the extent of swelling decreasing with increasing crosslinker content. The lower crosslinker content gels displayed sharper phase transitions, while the high crosslinker content gels had broader phase transitions.
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Affiliation(s)
- Shuo Tang
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Rohit Bhandari
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Sean P Delaney
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Eric J Munson
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Thomas D Dziubla
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - J Zach Hilt
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
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42
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Ravichandran R, Astrand C, Patra HK, Turner APF, Chotteau V, Phopase J. Intelligent ECM mimetic injectable scaffolds based on functional collagen building blocks for tissue engineering and biomedical applications. RSC Adv 2017. [DOI: 10.1039/c7ra02927f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one-pot approach to fabricate in situ-gellable, thermo- and pH-responsive, hydrogels based on covalently crosslinked networks of collagen-I and thermo-responsive polymer.
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Affiliation(s)
- R. Ravichandran
- Division of Molecular Physics
- Department of Physics, Chemistry and Biology (IFM)
- Linköping University
- Linköping
- Sweden
| | - C. Astrand
- School of Biotechnology
- KTH-Royal Institute of Technology
- Stockholm
- Sweden
| | - H. K. Patra
- Biosensors and Bioelectronics Centre
- Department of Physics
- Chemistry and Biology (IFM)
- Linköping University
- Linköping
| | - Anthony P. F. Turner
- Biosensors and Bioelectronics Centre
- Department of Physics
- Chemistry and Biology (IFM)
- Linköping University
- Linköping
| | - V. Chotteau
- School of Biotechnology
- KTH-Royal Institute of Technology
- Stockholm
- Sweden
| | - J. Phopase
- Division of Molecular Physics
- Department of Physics, Chemistry and Biology (IFM)
- Linköping University
- Linköping
- Sweden
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43
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Jalil A, Khan S, Naeem F, Haider MS, Sarwar S, Riaz A, Ranjha NM. The structural, morphological and thermal properties of grafted pH-sensitive interpenetrating highly porous polymeric composites of sodium alginate/acrylic acid copolymers for controlled delivery of diclofenac potassium. Des Monomers Polym 2016; 20:308-324. [PMID: 29491802 PMCID: PMC5784877 DOI: 10.1080/15685551.2016.1259834] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/28/2016] [Indexed: 11/13/2022] Open
Abstract
In present investigation new formulations of Sodium Alginate/Acrylic acid hydrogels with high porous structure were synthesized by free radical polymerization technique for the controlled drug delivery of analgesic agent to colon. Many structural parameters like molecular weight between crosslinks (Mc), crosslink density (Mr), volume interaction parameter (v2,s), Flory Huggins water interaction parameter and diffusion coefficient (Q) were calculated. Water uptake studies was conducted in different USP phosphate buffer solutions. All samples showed higher swelling ratio with increasing pH values because of ionization of carboxylic groups at higher pH values. Porosity and gel fraction of all the samples were calculated. New selected samples were loaded with the model drug (diclofenac potassium).The amount of drug loaded and released was determined and it was found that all the samples showed higher release of drug at higher pH values. Release of diclofenac potassium was found to be dependent on the ratio of sodium alginate/acrylic acid, EGDMA and pH of the medium. Experimental data was fitted to various model equations and corresponding parameters were calculated to study the release mechanism. The Structural, Morphological and Thermal Properties of interpenetrating hydrogels were studied by FTIR, XRD, DSC, and SEM.
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Affiliation(s)
- Aamir Jalil
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Samiullah Khan
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, Pakistan
| | - Fahad Naeem
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Shoaib Sarwar
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Amna Riaz
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
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44
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Chernikova EV, Plutalova AV, Mineeva KO, Vishnevetskii DV, Lysenko EA, Serkhacheva NS, Prokopov NI. Ternary copolymers of acrylic acid, N-isopropylacrylamide, and butyl acrylate: Synthesis and aggregative behavior in dilute solutions. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416050031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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45
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Karimi M, Zangabad PS, Ghasemi A, Amiri M, Bahrami M, Malekzad H, Asl HG, Mahdieh Z, Bozorgomid M, Ghasemi A, Boyuk MRRT, Hamblin MR. Temperature-Responsive Smart Nanocarriers for Delivery Of Therapeutic Agents: Applications and Recent Advances. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21107-33. [PMID: 27349465 PMCID: PMC5003094 DOI: 10.1021/acsami.6b00371] [Citation(s) in RCA: 240] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Smart drug delivery systems (DDSs) have attracted the attention of many scientists, as carriers that can be stimulated by changes in environmental parameters such as temperature, pH, light, electromagnetic fields, mechanical forces, etc. These smart nanocarriers can release their cargo on demand when their target is reached and the stimulus is applied. Using the techniques of nanotechnology, these nanocarriers can be tailored to be target-specific, and exhibit delayed or controlled release of drugs. Temperature-responsive nanocarriers are one of most important groups of smart nanoparticles (NPs) that have been investigated during the past decades. Temperature can either act as an external stimulus when heat is applied from the outside, or can be internal when pathological lesions have a naturally elevated termperature. A low critical solution temperature (LCST) is a special feature of some polymeric materials, and most of the temperature-responsive nanocarriers have been designed based on this feature. In this review, we attempt to summarize recent efforts to prepare innovative temperature-responsive nanocarriers and discuss their novel applications.
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Affiliation(s)
- Mahdi Karimi
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Parham Sahandi Zangabad
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science (TUOMS), Tabriz, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohammad Amiri
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohsen Bahrami
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Hedieh Malekzad
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Department of Chemistry, Kharazmi University of Tehran, Tehran, Iran
| | - Hadi Ghahramanzadeh Asl
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Zahra Mahdieh
- Department of Biomedical and Pharmaceutical Sciences, Material Science and Engineering, University of Montana, Missoula, Montana 59812, United States
| | - Mahnaz Bozorgomid
- Department of Applied Chemistry, Central Branch of Islamic Azad University of Tehran, Tehran, Iran
| | - Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | | | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts 02139, United States
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46
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Magdanz V, Guix M, Hebenstreit F, Schmidt OG. Dynamic Polymeric Microtubes for the Remote-Controlled Capture, Guidance, and Release of Sperm Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:4084-4089. [PMID: 27003908 DOI: 10.1002/adma.201505487] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 02/11/2016] [Indexed: 06/05/2023]
Abstract
Remote-controlled release of single sperm cells is demonstrated by the use of polymeric microtubes that unfold upon temperature increase to 38 °C. Thermoresponsive, ferromagnetic multilayers are tailored to catch sperm cells and remotely control them by external magnetic fields. These polymeric spermbots are propelled by the sperm flagella. When the temperature is increased, the tubes unfold and the cell is set free.
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Affiliation(s)
- Veronika Magdanz
- Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Materials Research IFW Dresden, Helmholtzstraße 20, 01069, Dresden, Germany
| | - Maria Guix
- Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Materials Research IFW Dresden, Helmholtzstraße 20, 01069, Dresden, Germany
| | - Franziska Hebenstreit
- Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Materials Research IFW Dresden, Helmholtzstraße 20, 01069, Dresden, Germany
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Materials Research IFW Dresden, Helmholtzstraße 20, 01069, Dresden, Germany
- Material Systems for Nanoelectronics, Technische Universität Chemnitz, Reichenhainer Straße 70, 09107, Chemnitz, Germany
- Center for Advancing Electronics Dresden, Dresden University of Technology, Würzburger Straße 46, 01187, Dresden, Germany
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47
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Karimi AR, Azadikhah F, Rahimi L, Ghadimi S. Fabrication of new Fe-phthalocyanine oligomer–magnetite hybrid magnetic nano particles and their effects on the LCST behavior of thermo-sensitive poly(N-isopropylacrylamide-co-acrylic acid) magnetic nanocomposites. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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48
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Luo R, Chen CH. A one-step hydrothermal route to programmable stimuli-responsive hydrogels. Chem Commun (Camb) 2015; 51:6617-20. [DOI: 10.1039/c4cc10342d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An effective one-step hydrothermal route to program the structure, swelling and responsiveness properties of stimuli-responsive hydrogels is developed.
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Affiliation(s)
- Rongcong Luo
- Department of Biomedical Engineering
- Singapore Institute for Neurotechnology
- National University of Singapore
- Singapore 117575
| | - Chia-Hung Chen
- Department of Biomedical Engineering
- Singapore Institute for Neurotechnology
- National University of Singapore
- Singapore 117575
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49
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Tsai MC, Hung KC, Hung SC, Hsu SH. Evaluation of biodegradable elastic scaffolds made of anionic polyurethane for cartilage tissue engineering. Colloids Surf B Biointerfaces 2015; 125:34-44. [DOI: 10.1016/j.colsurfb.2014.11.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/13/2014] [Accepted: 11/03/2014] [Indexed: 10/24/2022]
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50
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Fan G, Guo J, Dong M, Feng Y. Thermothickening Behavior of Graft Copolymers Containing Poly(N-isopropylacrylamide-co-N,N-dimethylacrylamide) Side Chains in Aqueous Solution. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.953370] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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