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Dartora VFC, Passos JS, Costa-Lotufo LV, Lopes LB, Panitch A. Thermosensitive Polymeric Nanoparticles for Drug Co-Encapsulation and Breast Cancer Treatment. Pharmaceutics 2024; 16:231. [PMID: 38399285 PMCID: PMC10892816 DOI: 10.3390/pharmaceutics16020231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
Despite advances in breast cancer treatment, there remains a need for local management of noninvasive, low-grade ductal carcinoma in situ (DCIS). These focal lesions are well suited for local intraductal treatment. Intraductal administration supported target site drug retention, improved efficacy, and reduced systemic exposure. Here, we used a poly(N-isopropyl acrylamide, pNIPAM) nanoparticle delivery system loaded with cytotoxic piplartine and an MAPKAP Kinase 2 inhibitor (YARA) for this purpose. For tumor environment targeting, a collagen-binding peptide SILY (RRANAALKAGELYKSILYGSG-hydrazide) was attached to pNIPAM nanoparticles, and the nanoparticle diameter, zeta potential, drug loading, and release were assessed. The system was evaluated for cytotoxicity in a 2D cell culture and 3D spheroids. In vivo efficacy was evaluated using a chemical carcinogenesis model in female Sprague-Dawley rats. Nanoparticle delivery significantly reduced the IC50 of piplartine (4.9 times) compared to the drug in solution. The combination of piplartine and YARA in nanoparticles further reduced the piplartine IC50 (~15 times). Treatment with these nanoparticles decreased the in vivo tumor incidence (5.2 times). Notably, the concentration of piplartine in mammary glands treated with nanoparticles (35.3 ± 22.4 μg/mL) was substantially higher than in plasma (0.7 ± 0.05 μg/mL), demonstrating targeted drug retention. These results indicate that our nanocarrier system effectively reduced tumor development with low systemic exposure.
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Affiliation(s)
- Vanessa Franco Carvalho Dartora
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo 05508-900, Brazil; (V.F.C.D.); (J.S.P.); (L.V.C.-L.); (L.B.L.)
- Department of Biomedical Engineering, College of Engineering, University of California Davis, Davis, CA 95616, USA
| | - Julia S. Passos
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo 05508-900, Brazil; (V.F.C.D.); (J.S.P.); (L.V.C.-L.); (L.B.L.)
| | - Leticia V. Costa-Lotufo
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo 05508-900, Brazil; (V.F.C.D.); (J.S.P.); (L.V.C.-L.); (L.B.L.)
| | - Luciana B. Lopes
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo 05508-900, Brazil; (V.F.C.D.); (J.S.P.); (L.V.C.-L.); (L.B.L.)
| | - Alyssa Panitch
- Department of Biomedical Engineering, College of Engineering, University of California Davis, Davis, CA 95616, USA
- Wallace H. Coulter Department of Biomedical Engineering, College of Engineering, Georgia Institute of Technology, School of Medicine, Emory University, Atlanta, GA 30322, USA
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Zygadlo K, Liu CH, Bernardo ER, Ai H, Nieh MP, Hanson LA. Correlating structural changes in thermoresponsive hydrogels to the optical response of embedded plasmonic nanoparticles. NANOSCALE ADVANCES 2023; 6:146-154. [PMID: 38125594 PMCID: PMC10729875 DOI: 10.1039/d3na00758h] [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: 09/09/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
Stimuli-responsive microgels, composed of small beads with soft, deformable polymer networks swollen through a combination of synthetic control over the polymer and its interaction with water, form a versatile platform for development of multifunctional and biocompatible sensors. The interfacial structural variation of such materials at a nanometer length scale is essential to their function, but not yet fully comprehended. Here, we take advantage of the plasmonic response of a gold nanorod embedded in a thermoresponsive microgel (AuNR@PNIPMAm) to monitor structural changes in the hydrogel directly near the nanorod surface. By direct comparison of the plasmon response against measurements of the hydrogel structure from dynamic light scattering and nuclear magnetic resonance, we find that the microgel shell of batch-polymerized AuNR@PNIPMAm exhibits a heterogeneous volume phase transition reflected by different onset temperatures for changes in the hydrodyanmic radius (RH) and plasmon resonance, respectively. The new approach of contrasting plasmonic response (a measure of local surface hydrogel structure) with RH and relaxation times paves a new path to gain valuable insight for the design of plasmonic sensors based on stimuli-responsive hydrogels.
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Affiliation(s)
- Kamila Zygadlo
- Department of Chemistry, Trinity College Hartford CT 06106 USA
| | - Chung-Hao Liu
- Polymer Program, Institute of Materials Science, University of Connecticut Storrs CT 06269 USA
| | | | - Huayue Ai
- Department of Chemistry, Trinity College Hartford CT 06106 USA
| | - Mu-Ping Nieh
- Polymer Program, Institute of Materials Science, University of Connecticut Storrs CT 06269 USA
- Chemical & Biomolecular Engineering Department, University of Connecticut Storrs CT 06269 USA
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Yang J, Huang B, Lv Z, Cao Z. Preparation and self-assembly of ionic (PNIPAM- co-VIM) microgels and their adsorption property for phosphate ions. RSC Adv 2023; 13:3425-3437. [PMID: 36756607 PMCID: PMC9871875 DOI: 10.1039/d2ra06678e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Using N-isopropyl acrylamide (NIPAM) as the main monomer, 1-vinyl imidazole (VIM) containing tertiary amine groups as the functional comonomer, and 1,5-dibromo pentane as the crosslinking agent, ionic P(NIPAM-co-VIM) microgels were prepared by a two-step method. The crosslinking agent was reacted with tertiary amino groups by the quaternary amination. The results of zeta potential and particle size analysis showed that P(NIPAM-co-VIM) microgels were positively charged and had a particle size of about 400 nm, and the microgels with 11 wt% VIM still showed temperature sensitivity with a volume phase transition temperature of approximately 37.5 °C. The effects of VIM content, ambient temperature, and pH on the adsorption properties of the microgels for phosphate anions were explored. The self-assembly of the positively charged P(NIPAM-co-VIM) microgels with polyelectrolytes and the adsorption behavior of the layers for phosphate anions were studied using a quartz crystal microbalance (QCM). It was found that at a phosphate concentration of 0.3 mg mL-1, VIM mass fraction of 11%, pH of 5, and temperature of 20 °C, the largest adsorption capacity of P(NIPAM-co-VIM) microgel on phosphate ions could reach 346.3 mg g-1. The frequency responses of the microgel-modified QCM sensor could reach 3.0, 18.8, and 25.9 Hz when exposed to 10-8, 10-7, and 10-6 M phosphate solutions. Therefore, the ionic (PNIPAM-co-VIM) microgels could be promising for fabricating anion-binding materials for separation and sensing applications.
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Affiliation(s)
- Jianping Yang
- Department of Orthopedics, Changzhou Hospital of Traditional Chinese Medicine 25 Heping North Road Changzhou 213000 Jiangsu P. R. China
| | - Bei Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 Jiangsu P. R. China
| | - Zhengxiang Lv
- Department of Orthopedics, Changzhou Hospital of Traditional Chinese Medicine 25 Heping North Road Changzhou 213000 Jiangsu P. R. China
| | - Zheng Cao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 Jiangsu P. R. China .,National Experimental Demonstration Center for Materials Science and Engineering (Changzhou University) Changzhou 213164 P. R. China
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Shah RA, Runge T, Ostertag TW, Tang S, Dziubla TD, Hilt JZ. Development of temperature-responsive polymeric gels with physical crosslinking due to intermolecular 𝜋-𝜋 interactions. POLYM INT 2022; 71:292-300. [PMID: 35695835 PMCID: PMC9173683 DOI: 10.1002/pi.6328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Poly(N-isopropylacrylamide) PNIPAAm was polymerized with co-monomers containing a biphenyl moiety to create a unique thermoresponsive physically crosslinked system due to the presence of pi-pi interactions between the biphenyl moieties. The biphenyl monomers used were 2-phenylphenol monoacrylate (2PPMA) and 4-phenylphenol monoacrylate (4PPMA). These monomers were utilized to synthesize a set of polymers with biphenyl monomer (2PPMA/4PPMA) content from 2.5 to 7.5 mole percent and with initiator concentrations from 0.1 and 1.0 weight percent. The resulting polymers were characterized by various techniques, such as gel permeation chromatography (GPC), swelling studies and mechanical testing. The decrease in the average molecular weight of the polymers due to the increase in the concentration of initiator was confirmed by GPC results. Swelling studies confirmed the expected temperature dependent swelling properties and explored the impact of the biphenyl comonomers. These studies indicated that with the increase in biphenyl comonomers, the physical crosslinking increases which leads to decrease in the swelling ratio. The results from the mechanical tests also depict the effect of the concentration of biphenyl comonomers. These physically crosslinked polymeric systems with their unique properties have potential applications spanning environmental remediation/sensing, biomedicine, etc.
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Affiliation(s)
- Rishabh A. Shah
- Superfund Research Center, University of Kentucky, Lexington, KY 40536, USA,Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Tyler Runge
- Department of Physics and Engineering, Washington and Lee University, Lexington, VA 24450, USA
| | - Thomas W. Ostertag
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Shuo Tang
- Superfund Research Center, University of Kentucky, Lexington, KY 40536, USA,Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - Thomas D. Dziubla
- Superfund Research Center, University of Kentucky, Lexington, KY 40536, USA,Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA
| | - J. Zach Hilt
- Superfund Research Center, University of Kentucky, Lexington, KY 40536, USA,Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA,Author to whom correspondence should be addressed,
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Bicak T, Garnier M, Sabbah M, Griffete N. Photoinduced synthesis of fluorescent hydrogels without fluorescent monomers. Chem Commun (Camb) 2022; 58:9614-9617. [DOI: 10.1039/d2cc02888c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent monomer-free one-step strategy is developed for the synthesis of fluorescent acrylamide gels, using inexpensive and commercially available rhodamine B as the hydrogen donor in type II photoinitiation system....
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Kim H, Kim J, Kim D. Enhancement of Gel Strength of Itaconic Acid-Based Superabsorbent Polymer Composites Using Oxidized Starch. Polymers (Basel) 2021; 13:polym13172859. [PMID: 34502899 PMCID: PMC8433998 DOI: 10.3390/polym13172859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/10/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Herein, core-superabsorbent polymer (CSAP) composites are prepared from oxidized starch (OS) via aqueous solution copolymerization using ammonium persulfate as the initiator, and 1,6-hexanediol diacrylate as the inner-crosslinker. The surface-crosslinking process is performed using various surface-crosslinkers, including bisphenol A diglycidyl ether (BADGE), poly(ethylene glycol) diglycidyl ether (PEGDGE), ethylene glycol diglycidyl ether (EGDGE), and diglycidyl ether (DGE). The structures of the CSAP composites and their surface-crosslinked SAPs (SSAPs) are characterized using Fourier transform infrared (FT-IR) spectroscopy, their absorption properties are measured via centrifuge retention capacity (CRC), absorbency under load (AUL), permeability, and re-swellability tests, and their gel strengths according to surface-crosslinker type and EGDGE content are examined via rheological analysis. The results indicate that an EGDGE content of 0.75 mol provides the optimum surface-crosslinking and SSAP performance, with a CRC of 34.8 g/g, an AUL of 27.2 g/g, and a permeability of 43 s. The surface-crosslinking of the CSAP composites using OS is shown to improve the gel strength, thus enabling the SAP to be used in disposable diapers.
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Affiliation(s)
- Haechan Kim
- Material & Component Convergence R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Korea; (H.K.); (J.K.)
- Department of Material Chemical Engineering, Hanyang University, Ansan 15588, Korea
| | - Jungsoo Kim
- Material & Component Convergence R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Korea; (H.K.); (J.K.)
| | - Donghyun Kim
- Material & Component Convergence R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Korea; (H.K.); (J.K.)
- Correspondence: ; Tel.: +82-31-8040-6226
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7
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Marcisz K, Romanski J, Karbarz M. Electroresponsive microgel able to form a monolayer on gold through self-assembly. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123992] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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8
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Zhang Z, Hao J. Bioinspired organohydrogels with heterostructures: Fabrications, performances, and applications. Adv Colloid Interface Sci 2021; 292:102408. [PMID: 33932827 DOI: 10.1016/j.cis.2021.102408] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 02/08/2023]
Abstract
Since emerging in 1960, the artificial hydrogels have garnered enormous attentions in scientific community due to their high level of similarities to biological soft tissues in both structures and properties. With the proceeding of research, the concern of hydrogels is gradually shifted from fundamental investigation to abundant functionalization. In contrast to the natural soft tissues, the current artificial hydrogels still possess relatively simple structures and unsatisfactory environmental adaptability, extremely limiting their practical applications in complex environments. Enlightened by the prominent adaptability of biological organisms, the binary cooperative complementary principle is utilized to develop bioinspired organohydrogels by combining two components with opposite but cooperative physiochemical features. The present review provides the advanced progresses of bioinspired organohydrogels with sophisticated heterogeneous networks and desirably environmental adaptabilities. We clearly summarize the synthesizing strategies in regard to both corresponding mechanisms and typical examples, including macroscopic organohydrogels, organohydrogels with binary solvent, organohydrogels with heteronetworks, and emulsion-based organohydrogels. Meanwhile, the intriguing features of the reported organohydrogels, such as temperature resistance, switchable mechanics, adaptive wettability, and opposite components compatibility, are also clearly highlighted with a short overview of their promising applications. Ultimately, the current challenges and perspectives on the future development of bioinspired organohydrogels are also discussed.
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Khodambashi R, Alsaid Y, Rico R, Marvi H, Peet MM, Fisher RE, Berman S, He X, Aukes DM. Heterogeneous Hydrogel Structures with Spatiotemporal Reconfigurability using Addressable and Tunable Voxels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005906. [PMID: 33491825 DOI: 10.1002/adma.202005906] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/08/2020] [Indexed: 06/12/2023]
Abstract
Stimuli-responsive hydrogels can sense environmental cues and change their volume accordingly without the need for additional sensors or actuators. This enables a significant reduction in the size and complexity of resulting devices. However, since the responsive volume change of hydrogels is typically uniform, their robotic applications requiring localized and time-varying deformations have been challenging to realize. Here, using addressable and tunable hydrogel building blocks-referred to as soft voxel actuators (SVAs)-heterogeneous hydrogel structures with programmable spatiotemporal deformations are presented. SVAs are produced using a mixed-solvent photopolymerization method, utilizing a fast reaction speed and the cononsolvency property of poly(N-isopropylacrylamide) (PNIPAAm) to produce highly interconnected hydrogel pore structures, resulting in tunable swelling ratio, swelling rate, and Young's modulus in a simple, one-step casting process that is compatible with mass production of SVA units. By designing the location and swelling properties of each voxel and by activating embedded Joule heaters in the voxels, spatiotemporal deformations are achieved, which enables heterogeneous hydrogel structures to manipulate objects, avoid obstacles, generate traveling waves, and morph to different shapes. Together, these innovations pave the way toward tunable, untethered, and high-degree-of-freedom hydrogel robots that can adapt and respond to changing conditions in unstructured environments.
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Affiliation(s)
- Roozbeh Khodambashi
- The Polytechnic School, Fulton Schools of Engineering, Arizona State University, Mesa, AZ, 85212, USA
| | - Yousif Alsaid
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Rossana Rico
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Hamid Marvi
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Matthew M Peet
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Rebecca E Fisher
- Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA
| | - Spring Berman
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Daniel M Aukes
- The Polytechnic School, Fulton Schools of Engineering, Arizona State University, Mesa, AZ, 85212, USA
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Liu Y, Huang Y, Zhang C, Li W, Chen C, Zhang Z, Chen H, Wang J, Li Y, Zhang Y. Nano-FeS incorporated into stable lignin hydrogel: A novel strategy for cadmium removal from soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114739. [PMID: 32434113 DOI: 10.1016/j.envpol.2020.114739] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/25/2020] [Accepted: 05/03/2020] [Indexed: 06/11/2023]
Abstract
Strategies for reducing cadmium (Cd) content in polluted farmland soils are currently limited. A type of composite with nanoparticles incorporated into a hydrogel have been developed to efficiently remove heavy metals from sewage, but their application in soils faces challenges, such as organic hydrogel degradation due to oxygen exposure and slow Cd2+ release from soil constituents. To overcome these challenges, a composite with superior stability for long-term application in soil is required. In this study, ferrous sulfide (FeS) nanoparticle@lignin hydrogel composites were developed. The lignin-based hydrogels inherited lignin's natural mechanical and environmental stability and the FeS nanoparticles efficiently adsorbed Cd2+ and enhanced Cd2+ desorption from soils by producing H+. The high sorption capacity (833.3 g kg-1) of the composite was attributed to four proposed mechanisms, including cadmium sulfide (CdS) precipitation via chemical reaction (84.06%), lignin complexation (13.19%), hydrogel swelling (0.61%), and nanoparticle sorption (2.15%). In addition, Fe2+ displaced from the composite was gradually oxidized to form solid iron oxide hydroxide, which increased Cd2+ sorption. The composite significantly reduced the total, surfactant-soluble, and fixed Cd in heavily and lightly polluted paddy soils by 22.4-49.6%, 13.5-68.6%, and 40.1-16.6%, respectively, in 7 days.
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Affiliation(s)
- Yonglin Liu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Yongdong Huang
- Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Cong Zhang
- Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Wenyan Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Chengyu Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Huayi Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Jinjin Wang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China.
| | - Yulong Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China; Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Hunan Division of GRG Metrology and Test, Hunan, 410000, China.
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Therapeutic Manipulation of Macrophages Using Nanotechnological Approaches for the Treatment of Osteoarthritis. NANOMATERIALS 2020; 10:nano10081562. [PMID: 32784839 PMCID: PMC7466380 DOI: 10.3390/nano10081562] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023]
Abstract
Osteoarthritis (OA) is the most common joint pathology causing severe pain and disability. Macrophages play a central role in the pathogenesis of OA. In the joint microenvironment, macrophages with an M1-like pro-inflammatory phenotype induce chronic inflammation and joint destruction, and they have been correlated with the development and progression of the disease, while the M2-like anti-inflammatory macrophages support the recovery of the disease, promoting tissue repair and the resolution of inflammation. Nowadays, the treatment of OA in the clinic relies on systemic and/or intra-articular administration of anti-inflammatory and pain relief drugs, as well as surgical interventions for the severe cases (i.e., meniscectomy). The disadvantages of the pharmacological therapy are related to the chronic nature of the disease, requiring prolonged treatments, and to the particular location of the pathology in joint tissues, which are separated anatomical compartments with difficult access for the drugs. To overcome these challenges, nanotechnological approaches have been investigated to improve the delivery of drugs toward macrophages into the diseased joint. This strategy may offer advantages by reducing off-target toxicities and improving long-term therapeutic efficacy. In this review, we describe the nanomaterial-based approaches designed so far to directly or indirectly manipulate macrophages for the treatment of osteoarthritis.
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12
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Brugnoni M, Fink F, Scotti A, Richtering W. Synthesis and structure of temperature-sensitive nanocapsules. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04686-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThe transport and systematic release of functional agents at specific areas are key challenges in various application fields. These make the development of micro- and nanocapsules, which allow for uptake, storage, and triggered release, of high interest. Hollow thermoresponsive microgels, cross-linked polymer networks with a solvent-filled cavity in their center, are promising candidates as triggerable nanocapsules, as they can adapt their size and shape to the environment. Their shell permeability can be controlled by temperature, while the cavity can serve as a storage place for guest species. Here, we present the synthesis and structural characterization of temperature-responsive microgels, which are deswollen at room temperature and swell upon moderate cooling, to facilitate potential encapsulation experiments. We present microgels made from poly(N-isopropylacrylamide-co-diacetone acrylamide), p(NIPAM-co-DAAM), possessing a volume phase transition temperature below room temperature. Their colloidal stability in the deswollen state can be enhanced by adding a swollen polymer shell made of poly(N-isopropylacrylamide), pNIPAM, as periphery. The synthesis of hollow double-shell microgels comprising a cavity surrounded by an inner p(NIPAM-co-DAAM) shell and an outer pNIPAM shell is established. The inner network enables the control of the shell permeability: the network is deswollen at room temperature and swells upon moderate cooling. The outer network guarantees for steric stability at room temperature. Light scattering techniques are employed for the characterization of the microgels. Form factor analysis reveals that the cavity of the nanocapsules persists at all swelling states, making it an ideal site for the storage of guest species.
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13
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Saha P, Santi M, Frenken M, Palanisamy AR, Ganguly R, Singha NK, Pich A. Dual-Temperature-Responsive Microgels from a Zwitterionic Functional Graft Copolymer with Superior Protein Repelling Property. ACS Macro Lett 2020; 9:895-901. [PMID: 35648523 DOI: 10.1021/acsmacrolett.0c00304] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, we developed a synthetic strategy to synthesize dual-temperature-responsive low surface fouling zwitterionic microgels. Statistical poly(N-vinylcaprolactam-co-glycidyl methacrylate) copolymers were synthesized by RAFT polymerization and post-modified by thiol-epoxy click reaction with thiol end-group-modified poly(sulfobetaine) macro-RAFT (PSB-SH) to obtain poly(N-vinylcaprolactam-co-glycidyl methacrylate)-graft-poly(sulfobetaine) (PVCL-co-PGMA-g-PSB) graft copolymers. Synthesized graft copolymers were cross-linked by diamine cross-linker in water-in-oil (w/o) inverse mini-emulsion to obtain zwitterionic microgels. Using this approach, we synthesized microgels with unique microstructure, high loading and uniform distribution of poly(sulfobetaine) chains, which exhibits tunable dual-volume phase transition temperatures. The microgels also showed excellent antifouling property reflected in strongly reduced protein absorption on a microgel-coated surface observed in real time by a Quartz Crystal Microbalance with Dissipation (QCM-D) monitoring experiment with continuous flow of protein solution. Therefore, this kind of zwitterionic microgel can be potentially used for temperature-triggered drug delivery and anti-bioadhesion coating material as well.
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Affiliation(s)
- Pabitra Saha
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Marta Santi
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Martin Frenken
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - Anand Raj Palanisamy
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Ritabrata Ganguly
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Nikhil K. Singha
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Andrij Pich
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Maastricht, The Netherlands
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14
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Chang Y, Zhou Q, Ning L, Liang Y, Ren L, Ren L. Study on intelligent deformation characteristics of temperature‐driven hydrogel actuators prepared via molding and
3D
printing. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4922] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yanjiao Chang
- The Key Laboratory of Bionic Engineering, Ministry of EducationJilin University Changchun China
| | - Qiang Zhou
- Cadre's WardThe First Hospital of Jilin University Changchun China
| | - Luping Ning
- The Key Laboratory of Bionic Engineering, Ministry of EducationJilin University Changchun China
| | - Yunhong Liang
- The Key Laboratory of Bionic Engineering, Ministry of EducationJilin University Changchun China
| | - Lei Ren
- The Key Laboratory of Bionic Engineering, Ministry of EducationJilin University Changchun China
- School of Mechanical, Aerospace and Civil EngineeringUniversity of Manchester Manchester UK
| | - Luquan Ren
- The Key Laboratory of Bionic Engineering, Ministry of EducationJilin University Changchun China
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15
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Oberdisse J, Hellweg T. Recent advances in stimuli-responsive core-shell microgel particles: synthesis, characterisation, and applications. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04629-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractInspired by the path followed by Matthias Ballauff over the past 20 years, the development of thermosensitive core-shell microgel structures is reviewed. Different chemical structures, from hard nanoparticle cores to double stimuli-responsive microgels have been devised and successfully implemented by many different groups. Some of the rich variety of these systems is presented, as well as some recent progress in structural analysis of such microstructures by small-angle scattering of neutrons or X-rays, including modelling approaches. In the last part, again following early work by the group of Matthias Ballauff, applications with particular emphasis on incorporation of catalytic nanoparticles inside core-shell structures—stabilising the nanoparticles and granting external control over activity—will be discussed, as well as core-shell microgels at interfaces.
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16
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Van Steenberge PHM, Sedlacek O, Hernández-Ortiz JC, Verbraeken B, Reyniers MF, Hoogenboom R, D'hooge DR. Visualization and design of the functional group distribution during statistical copolymerization. Nat Commun 2019; 10:3641. [PMID: 31409782 PMCID: PMC6692376 DOI: 10.1038/s41467-019-11368-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 07/11/2019] [Indexed: 11/09/2022] Open
Abstract
Even though functional copolymers with a low percentage of functional comonomer units (up to 20 mol%) are widely used, for instance for the development of polymer therapeutics and hydrogels, insights in the functional group distribution over the actual chains are lacking and the average composition is conventionally used to describe the functionalization degree. Here we report the visualization of the monomer distribution over the different polymer chains by a synergetic combination of experimental and theoretical analysis aiming at the construction of functionality-chain length distributions (FUNC-CLDs). A successful design of the chemical structure of the comonomer pair, the initial functional comonomer amount (13 mol%), and the temperature (100 °C) is performed to tune the FUNC-CLD of copoly(2-oxazoline)s toward high functionalization degree for both low (100) and high (400) target degrees of polymerization. The proposed research strategy is generic and extendable to a broad range of copolymerization chemistries, including reversible deactivation radical polymerization.
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Affiliation(s)
- Paul H M Van Steenberge
- Ghent University, Laboratory for Chemical Technology (LCT), Technologiepark 125, B-9052, Gent, Belgium
| | - Ondrej Sedlacek
- Ghent University, Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Krijgslaan 281-S4, 9000, Gent, Belgium
| | - Julio C Hernández-Ortiz
- Ghent University, Laboratory for Chemical Technology (LCT), Technologiepark 125, B-9052, Gent, Belgium
| | - Bart Verbraeken
- Ghent University, Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Krijgslaan 281-S4, 9000, Gent, Belgium
| | - Marie-Françoise Reyniers
- Ghent University, Laboratory for Chemical Technology (LCT), Technologiepark 125, B-9052, Gent, Belgium
| | - Richard Hoogenboom
- Ghent University, Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Krijgslaan 281-S4, 9000, Gent, Belgium.
| | - Dagmar R D'hooge
- Ghent University, Laboratory for Chemical Technology (LCT), Technologiepark 125, B-9052, Gent, Belgium. .,Ghent University, Centre for Textile Science and Engineering, Technologiepark 70a, B-9052, Gent, Belgium.
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17
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Tuning the Swelling Properties of Smart Multiresponsive Core-Shell Microgels by Copolymerization. Polymers (Basel) 2019; 11:polym11081269. [PMID: 31370213 PMCID: PMC6722827 DOI: 10.3390/polym11081269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 01/17/2023] Open
Abstract
The present study focuses on the development of multiresponsive core-shell microgels and the manipulation of their swelling properties by copolymerization of different acrylamides—especially N-isopropylacrylamide (NIPAM), N-isopropylmethacrylamide (NIPMAM), and NNPAM—and acrylic acid. We use atomic force microscopy for the dry-state characterization of the microgel particles and photon correlation spectroscopy to investigate the swelling behavior at neutral (pH 7) and acidic (pH 4) conditions. A transition between an interpenetrating network structure for microgels with a pure poly-N,n-propylacrylamide (PNNPAM) shell and a distinct core-shell morphology for microgels with a pure poly-N-isopropylmethacrylamide (PNIPMAM) shell is observable. The PNIPMAM molfraction of the shell also has an important influence on the particle rigidity because of the decreasing degree of interpenetration. Furthermore, the swelling behavior of the microgels is tunable by adjustment of the pH-value between a single-step volume phase transition and a linear swelling region at temperatures corresponding to the copolymer ratios of the shell. This flexibility makes the multiresponsive copolymer microgels interesting candidates for many applications, e.g., as membrane material with tunable permeability.
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18
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Sánchez-Moreno P, de Vicente J, Nardecchia S, Marchal JA, Boulaiz H. Thermo-Sensitive Nanomaterials: Recent Advance in Synthesis and Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E935. [PMID: 30428608 PMCID: PMC6266697 DOI: 10.3390/nano8110935] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/06/2018] [Accepted: 11/09/2018] [Indexed: 12/22/2022]
Abstract
Progress in nanotechnology has enabled us to open many new fronts in biomedical research by exploiting the peculiar properties of materials at the nanoscale. The thermal sensitivity of certain materials is a highly valuable property because it can be exploited in many promising applications, such as thermo-sensitive drug or gene delivery systems, thermotherapy, thermal biosensors, imaging, and diagnosis. This review focuses on recent advances in thermo-sensitive nanomaterials of interest in biomedical applications. We provide an overview of the different kinds of thermoresponsive nanomaterials, discussing their potential and the physical mechanisms behind their thermal response. We thoroughly review their applications in biomedicine and finally discuss the current challenges and future perspectives of thermal therapies.
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Affiliation(s)
- Paola Sánchez-Moreno
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, 16163 Genova, Italy.
| | - Juan de Vicente
- Department of Applied Physics, Faculty of Sciences, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain.
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, 18016 Granada, Spain.
| | - Stefania Nardecchia
- Department of Applied Physics, Faculty of Sciences, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain.
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, 18016 Granada, Spain.
| | - Juan A Marchal
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, 18016 Granada, Spain.
- Department of Human Anatomy and Embryology, University of Granada, 18016 Granada, Spain.
- Biopathology and Medicine Regenerative Institute (IBIMER), University of Granada, 18016 Granada, Spain.
- Biosanitary Institute of Granada (ibs.GRANADA), SAS-Universidad de Granada, 18016 Granada, Spain.
| | - Houria Boulaiz
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, 18016 Granada, Spain.
- Department of Human Anatomy and Embryology, University of Granada, 18016 Granada, Spain.
- Biopathology and Medicine Regenerative Institute (IBIMER), University of Granada, 18016 Granada, Spain.
- Biosanitary Institute of Granada (ibs.GRANADA), SAS-Universidad de Granada, 18016 Granada, Spain.
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19
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Thermoresponsive Behavior of Magnetic Nanoparticle Complexed pNIPAm-co-AAc Microgels. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8101984] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Characterization of responsive hydrogels and their enhancement with novel moieties have improved our understanding of functional materials. Hydrogels coupled with inorganic nanoparticles have been sought for novel types of responsive materials, but the efficient routes for the formation and the responsivity of complexed materials remain for further investigation. Here, we report that responsive poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAm-co-AAc) hydrogel microparticles (microgels) are tunable by varying composition of co-monomer and crosslinker as well as by their complexation with magnetic nanoparticles in aqueous dispersions. Our results show that the hydrodynamic diameter and thermoresponsivity of microgels are closely related with the composition of anionic co-monomer, AAc and crosslinker, N,N′-Methylenebisacrylamide (BIS). As a composition of hydrogels, the higher AAc increases the swelling size of the microgels and the volume phase transition temperature (VPTT), but the higher BIS decreases the size with no apparent effect on the VPTT. When the anionic microgels are complexed with amine-modified magnetic nanoparticles (aMNP) via electrostatic interaction, the microgels decrease in diameter at 25 °C and shift the volume phase transition temperature (VPTT) to a higher temperature. Hysteresis on the thermoresponsive behavior of microgels is also measured to validate the utility of aMNP-microgel complexation. These results suggest a simple, yet valuable route for development of advanced responsive microgels, which hints at the formation of soft nanomaterials enhanced by inorganic nanoparticles.
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20
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Chen X, Liu X, Miao C, Song P, Xiong Y. Ionic liquid-like inimer mediated RAFT polymerization of N-isopropylacrylamide. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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21
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Wrede O, Reimann Y, Lülsdorf S, Emmrich D, Schneider K, Schmid AJ, Zauser D, Hannappel Y, Beyer A, Schweins R, Gölzhäuser A, Hellweg T, Sottmann T. Volume phase transition kinetics of smart N-n-propylacrylamide microgels studied by time-resolved pressure jump small angle neutron scattering. Sci Rep 2018; 8:13781. [PMID: 30213960 PMCID: PMC6137196 DOI: 10.1038/s41598-018-31976-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 08/31/2018] [Indexed: 11/24/2022] Open
Abstract
The use of smart colloidal microgels for advanced applications critically depends on their response kinetics. We use pressure jump small angle neutron scattering with supreme time resolution to study the rapid volume phase transition kinetics of such microgels. Utilizing the pressure induced microphase separation inside the microgels we were able to resolve their collapse and swelling kinetics. While the collapse occurs on a time scale of 10 ms, the particle swelling turned out to be much faster. Photon correlation spectroscopy and static small angle neutron scattering unambiguously show, that the much slower collapse can be associated with the complex particle architecture exhibiting a loosely-crosslinked outer region and a denser inner core region. These insights into the kinetics of stimuli-responsive materials are of high relevance for their applications as nano-actuators, sensors or drug carriers. Moreover, the used refined pressure jump small angle neutron scattering technique is of broad interest for soft matter studies.
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Affiliation(s)
- Oliver Wrede
- Physical and Biophysical Chemistry, Bielefeld University, Bielefeld, Germany
| | - Yvonne Reimann
- Institute of Physical Chemistry, University of Cologne, Cologne, Germany
| | - Stefan Lülsdorf
- Institute of Physical Chemistry, University of Stuttgart, Stuttgart, Germany
| | - Daniel Emmrich
- Physics of Supermolecular Systems and Surfaces, Bielefeld University, Bielefeld, Germany
| | - Kristina Schneider
- Institute of Physical Chemistry, University of Stuttgart, Stuttgart, Germany
| | | | - Diana Zauser
- Institute of Physical Chemistry, University of Stuttgart, Stuttgart, Germany
| | - Yvonne Hannappel
- Physical and Biophysical Chemistry, Bielefeld University, Bielefeld, Germany
| | - André Beyer
- Physics of Supermolecular Systems and Surfaces, Bielefeld University, Bielefeld, Germany
| | | | - Armin Gölzhäuser
- Physics of Supermolecular Systems and Surfaces, Bielefeld University, Bielefeld, Germany
| | - Thomas Hellweg
- Physical and Biophysical Chemistry, Bielefeld University, Bielefeld, Germany.
| | - Thomas Sottmann
- Institute of Physical Chemistry, University of Stuttgart, Stuttgart, Germany.
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22
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Dey B, Raja Sekhar GP, Burada PS. Electrophoresis of a soft charged particle in a sparsely packed bed. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1428569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Bibaswan Dey
- SRM Research Institute and Department of Mathematics, SRM Institute of Science and Technology, Chennai, Tamilnadu, India
| | - G. P. Raja Sekhar
- Department of Mathematics, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - P. S. Burada
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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23
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Zaichenko A, Mitina N, Miagkota O, Hevus O, Bilyi R, Stoika R, Payuk O, Nadashkevych Z, Voloshinovskii A. Target Synthesis of Functional Biocompatible Nanocomposites with “Core-Shell” Structure. CHEMISTRY & CHEMICAL TECHNOLOGY 2018. [DOI: 10.23939/chcht12.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Salzmann P, Perrotta A, Coclite AM. Different Response Kinetics to Temperature and Water Vapor of Acrylamide Polymers Obtained by Initiated Chemical Vapor Deposition. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6636-6645. [PMID: 29376640 DOI: 10.1021/acsami.7b18878] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thermoresponsive polymers undergo a reversible phase transition at their lower critical solution temperature (LCST) from a hydrated hydrophilic state at temperatures below the LCST to a collapsed hydrophobic state at higher temperatures. This results in a strong response to temperature when in aqueous environment. This study shows that hydrogel thin films synthesized by initiated chemical vapor deposition show fast and strong response to temperature also in water vapor environment. Thin films of cross-linked poly(N-isopropylacrylamide), p(NIPAAm), were found to have a sharp change in thickness by 200% in water vapor at temperatures above and below the LCST. Additionally, the stimuli-responsive poly(N,N-diethylacrylamide) was investigated and compared to results found for p(NIPAAm). Analysis of the swelling kinetics performed with in situ spectroscopic ellipsometry with variable stage temperature shows differences for swelling and deswelling processes, and a hysteresis in the thickness profile was found as a function of temperature and of temperature change rate.
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Affiliation(s)
- Paul Salzmann
- Institute of Solid State Physics, Graz University of Technology , Petersgasse 16, 8010 Graz, Austria
| | - Alberto Perrotta
- Institute of Solid State Physics, Graz University of Technology , Petersgasse 16, 8010 Graz, Austria
| | - Anna Maria Coclite
- Institute of Solid State Physics, Graz University of Technology , Petersgasse 16, 8010 Graz, Austria
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25
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Aravopoulou D, Kyriakos K, Miasnikova A, Laschewsky A, Papadakis CM, Kyritsis A. Comparative Investigation of the Thermoresponsive Behavior of Two Diblock Copolymers Comprising PNIPAM and PMDEGA Blocks. J Phys Chem B 2018; 122:2655-2668. [DOI: 10.1021/acs.jpcb.7b09647] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dionysia Aravopoulou
- Physics Department, National Technical University of Athens, Iroon Polytechneiou 9, Zografou Campus, Athens 15780, Greece
| | - Konstantinos Kyriakos
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Anna Miasnikova
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
| | - André Laschewsky
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
- Fraunhofer Institut für Angewandte Polymerforschung, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany
| | - Christine M. Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Apostolos Kyritsis
- Physics Department, National Technical University of Athens, Iroon Polytechneiou 9, Zografou Campus, Athens 15780, Greece
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26
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Costa SA, Simon JR, Amiram M, Tang L, Zauscher S, Brustad EM, Isaacs FJ, Chilkoti A. Photo-Crosslinkable Unnatural Amino Acids Enable Facile Synthesis of Thermoresponsive Nano- to Microgels of Intrinsically Disordered Polypeptides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:10.1002/adma.201704878. [PMID: 29226470 PMCID: PMC5942558 DOI: 10.1002/adma.201704878] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 10/01/2017] [Indexed: 05/20/2023]
Abstract
Hydrogel particles are versatile materials that provide exquisite, tunable control over the sequestration and delivery of materials in pharmaceutics, tissue engineering, and photonics. The favorable properties of hydrogel particles depend largely on their size, and particles ranging from nanometers to micrometers are used in different applications. Previous studies have only successfully fabricated these particles in one specific size regime and required a variety of materials and fabrication methods. A simple yet powerful system is developed to easily tune the size of polypeptide-based, thermoresponsive hydrogel particles, from the nano- to microscale, using a single starting material. Particle size is controlled by the self-assembly and unique phase transition behavior of elastin-like polypeptides in bulk and within microfluidic-generated droplets. These particles are then stabilized through ultraviolet irradiation of a photo-crosslinkable unnatural amino acid (UAA) cotranslationally incorporated into the parent polypeptide. The thermoresponsive property of these particles provides an active mechanism for actuation and a dynamic responsive to the environment. This work represents a fundamental advance in the generation of crosslinked biomaterials, especially in the form of soft matter colloids, and is one of the first demonstrations of successful use of UAAs in generating a novel material.
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Affiliation(s)
- Simone A Costa
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Joseph R Simon
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Miriam Amiram
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University, P.O 653, Beer-Sheva, 8410501, Israel
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, 06520, USA
| | - Lei Tang
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Stefan Zauscher
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708, USA
| | - Eric M Brustad
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Farren J Isaacs
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, 06520, USA
| | - Ashutosh Chilkoti
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
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27
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PNIPAM-MAPOSS Hybrid Hydrogels with Excellent Swelling Behavior and Enhanced Mechanical Performance: Preparation and Drug Release of 5-Fluorouracil. Polymers (Basel) 2018; 10:polym10020137. [PMID: 30966173 PMCID: PMC6414838 DOI: 10.3390/polym10020137] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/18/2022] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) is a widely-studied polymers due to its excellent temperature sensitivity. PNIPAM-MAPOSS hybrid hydrogel, based on the introduction of acrylolsobutyl polyhedral oligomeric silsesquioxane (MAPOSS) into the PNIPAM matrix in the presence of polyethylene glycol, was prepared via radical polymerization. The modified hydrogels exhibited a thick, heterogeneous porous structure. PEG was used as a pore-forming agent to adjust the pore size. MAPOSS reduced the swelling ratios of gels, and decreased the LCST, causing the hydrogels to shrink at lower temperatures. However, its hydrophobicity helped to improve the temperature response rate. The incorporation of rigid MAPOSS into the polymer network greatly increased the compressive modulus of the hydrogel. It is worth noting that, by adjusting the amount of MAPOSS and PEG, the hydrogel could have both ideal mechanical properties and swelling behavior. In addition, hydrogel containing 8.33 wt % MAPOSS could achieve stable and sustained drug release. Thus, the prepared PNIPAM-MAPOSS hybrid hydrogel can serve as drug carrier for 5-fluorouracil and may have potential application in other biomedical fields.
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28
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Mackiewicz M, Stojek Z, Karbarz M. Unusual swelling behavior of core-shell microgels built from polymers exhibiting lower critical solubility temperature. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Li W, Hu L, Zhu J, Li D, Luan Y, Xu W, Serpe MJ. Comparison of the Responsivity of Solution-Suspended and Surface-Bound Poly(N-isopropylacrylamide)-Based Microgels for Sensing Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26539-26548. [PMID: 28745477 DOI: 10.1021/acsami.7b05558] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this submission, the phase transition behavior for poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAm-co-AAc) microgels and their assemblies was investigated as a function of temperature and pH using UV-vis spectroscopy (to probe light scattering behavior) and quartz crystal microbalance with dissipation (QCM-D) measurements. PNIPAm-co-AAc microgels were "painted" onto Au-coated glass substrates (for UV-vis) and the Au electrode of a QCM crystal to generate monolayers. The subsequent deposition of another Au layer on top of the pNIPAm-co-AAc microgel layer yields what is known as an etalon. UV-vis/QCM-D measurements revealed that the temperature and pH responsivities for the microgel assemblies match well with their solution behavior. UV-vis spectroscopy shows that the transmittance of the microgel monolayers decreased with increasing solution temperature at pH 3.0. At pH 6.5, the AAc groups in the microgels were deprotonated, leading to strong Coulombic repulsive forces inside the microgels that prevented their collapse and lead to minimal change in the transmitted light intensity. However, QCM-D analysis reveals more complex behavior as it is sensitive to the viscosity/viscoelasticity and thickness changes of the microgel layer, which ultimately depends on the microgel chemical composition and the interaction of the etalon's Au layer with the crystal. The maximum sensitivity to temperature is 0.8 × 10-3 °C·Hz-1, which is the most sensitive pNIPAm microgel-based QCM temperature sensor thus far reported in the literature. Finally, we exploit this new understanding to characterize the pH and ionic strength of a solution using pNIPAm-co-XAAc microgel-based etalon coated crystals. The research results and the sensing demonstration can inspire new and improved sensor designs for a variety of analytes.
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Affiliation(s)
- Wenxiang Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Soochow University , Suzhou, Jiangsu 215123, China
| | - Liang Hu
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Soochow University , Suzhou, Jiangsu 215123, China
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Jinghua Zhu
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
- The Institute of Petrochemistry, Heilongjiang Academy of Sciences , Harbin, Heilongjiang 150040, China
| | - Dan Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, Jiangsu 215123, China
| | - Yafei Luan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, Jiangsu 215123, China
| | - Wenwen Xu
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
| | - Michael J Serpe
- Department of Chemistry, University of Alberta , Edmonton, AB T6G 2G2, Canada
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30
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Liu L, Zeng J, Zhao X, Tian K, Liu P. Independent temperature and pH dual-responsive PMAA/PNIPAM microgels as drug delivery system: Effect of swelling behavior of the core and shell materials in fabrication process. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.11.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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McMasters J, Poh S, Lin JB, Panitch A. Delivery of anti-inflammatory peptides from hollow PEGylated poly(NIPAM) nanoparticles reduces inflammation in an ex vivo osteoarthritis model. J Control Release 2017; 258:161-170. [PMID: 28495577 DOI: 10.1016/j.jconrel.2017.05.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 03/25/2017] [Accepted: 05/07/2017] [Indexed: 12/14/2022]
Abstract
Targeted delivery of anti-inflammatory osteoarthritis treatments have the potential to significantly decrease undesirable systemic side effects and reduce required therapeutic dosage. Here we present a targeted, non-invasive drug delivery system to decrease inflammation in an osteoarthritis model. Hollow thermoresponsive poly(N-isopropylacrylamide) (pNIPAM) nanoparticles have been synthesized via degradation of a N,N'-bis(acryloyl)cystamine (BAC) cross-linked core out of a non-degradable pNIPAM shell. Sulfated 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPSA) was copolymerized in the shell to increase passive loading of an anti-inflammatory mitogen-activated protein kinase-activated protein kinase 2 (MK2)-inhibiting cell-penetrating peptide (KAFAK). The drug-loaded hollow nanoparticles were effective at delivering a therapeutically active dose of KAFAK to bovine cartilage explants, suppressing pro-inflammatory interleukin-6 (IL-6) expression after interleukin-1 beta (IL-1β) stimulation. This thermosensitive hollow nanoparticle system provides an excellent platform for the delivery of peptide therapeutics into highly proteolytic environments such as osteoarthritis.
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Affiliation(s)
- James McMasters
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, IN 47907, United States
| | - Scott Poh
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, IN 47907, United States
| | - Jenny B Lin
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, IN 47907, United States
| | - Alyssa Panitch
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, IN 47907, United States.
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Lee SK, Hwang G, Woo J, Park J, Kim J. Characterization of Responsive Hydrogel Nanoparticles upon Polyelectrolyte Complexation. Polymers (Basel) 2017; 9:E66. [PMID: 30970744 PMCID: PMC6431993 DOI: 10.3390/polym9020066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 11/17/2022] Open
Abstract
Characterization of responsive hydrogels and their interaction with other molecules have significantly expanded our understanding of the functional materials. We here report on the response of poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAm-co-AAc) nanogels to the addition of the poly(allylamine hydrochloride) (PAH) in aqueous dispersions. We find that the hydrodynamic radius and stability of nanogels are dependent on the PAH/nanogel stoichiometry. If the nanogel solution is titrated with very small aliquots of PAH, the nanogels decrease in radius until the equivalence point, followed by aggregation at suprastoichiometric PAH additions. Conversely, when titrated with large aliquots, the nanogel charge switches rapidly from anionic to cationic, and no aggregation is observed. This behavior correlates well with electrophoretic mobility measurements, which shows the nanogel charge transitioning from negative to positive upon PAH addition. The volume phase transition temperature (VPTT) of the nanogels is also measured to discover the effect of polyelectrolyte complexation on the deswelling thermodynamics. These data show that charge neutralization upon PAH addition decreases the VPTT of the nanogel at pH 6.5. However, if an excess amount of PAH is added to the nanogel solution, the VPTT shifts back to higher temperatures due to the formation of a net positive charge in the nanogel network.
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Affiliation(s)
- Su-Kyoung Lee
- Yonsei-IBS Institute, Yonsei University, Seoul 03722, Korea.
| | - Gyuri Hwang
- STEM Research Institute, Fairfax, VA 22031, USA.
| | - Jihyun Woo
- STEM Research Institute, Fairfax, VA 22031, USA.
| | - Joseph Park
- STEM Research Institute, Fairfax, VA 22031, USA.
| | - Jongseong Kim
- Yonsei-IBS Institute, Yonsei University, Seoul 03722, Korea.
- STEM Research Institute, Fairfax, VA 22031, USA.
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Zhou N, Cao X, Du X, Wang H, Wang M, Liu S, Nguyen K, Schmidt-Rohr K, Xu Q, Liang G, Xu B. Hyper-Crosslinkers Lead to Temperature- and pH-Responsive Polymeric Nanogels with Unusual Volume Change. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ning Zhou
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Xiaoyan Cao
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Xuewen Du
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Huaimin Wang
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Ming Wang
- Department of Biomedical Engineering; Tufts University; 419 Boston Ave Medford MA 02155 USA
| | - Shuang Liu
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road, Hefei Anhui 230026 China
| | - Khang Nguyen
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Klaus Schmidt-Rohr
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Qiaobing Xu
- Department of Biomedical Engineering; Tufts University; 419 Boston Ave Medford MA 02155 USA
| | - Gaolin Liang
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road, Hefei Anhui 230026 China
| | - Bing Xu
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
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34
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Zhou N, Cao X, Du X, Wang H, Wang M, Liu S, Nguyen K, Schmidt-Rohr K, Xu Q, Liang G, Xu B. Hyper-Crosslinkers Lead to Temperature- and pH-Responsive Polymeric Nanogels with Unusual Volume Change. Angew Chem Int Ed Engl 2017; 56:2623-2627. [DOI: 10.1002/anie.201611479] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/10/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ning Zhou
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Xiaoyan Cao
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Xuewen Du
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Huaimin Wang
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Ming Wang
- Department of Biomedical Engineering; Tufts University; 419 Boston Ave Medford MA 02155 USA
| | - Shuang Liu
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road, Hefei Anhui 230026 China
| | - Khang Nguyen
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Klaus Schmidt-Rohr
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
| | - Qiaobing Xu
- Department of Biomedical Engineering; Tufts University; 419 Boston Ave Medford MA 02155 USA
| | - Gaolin Liang
- Department of Chemistry; University of Science and Technology of China; 96 Jinzhai Road, Hefei Anhui 230026 China
| | - Bing Xu
- Department of Chemistry; Brandeis University; 415 South Street Waltham MA 02454 USA
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35
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Lai WF, Susha AS, Rogach AL, Wang G, Huang M, Hu W, Wong WT. Electrospray-mediated preparation of compositionally homogeneous core–shell hydrogel microspheres for sustained drug release. RSC Adv 2017. [DOI: 10.1039/c7ra07568e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Compositionally homogeneous core–shell hydrogel microspheres were prepared for sustained drug release.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Andrei S. Susha
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Hong Kong
| | - Andrey L. Rogach
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Hong Kong
| | - Guoan Wang
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Minjian Huang
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Weijie Hu
- School of Pharmaceutical Sciences
- Health Science Centre
- Shenzhen University
- Shenzhen
- China
| | - Wing-Tak Wong
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Hong Kong
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36
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Rai T, Sharma A, Panda D. Quantifying the role of silver nanoparticles in the modulation of the thermal energy storage properties of PAM–Ag nanocomposites. NEW J CHEM 2017. [DOI: 10.1039/c6nj04077b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanocomposite impregnated with a picomolar concentration of Ag NPs exhibits unprecedented thermal properties and efficiently converts optical energy to thermal energy.
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Affiliation(s)
- Tripti Rai
- Rajiv Gandhi Institute of Petroleum Technology
- (An Institute of National Importance)
- Rae Bareli
- India
| | - Atul Sharma
- Rajiv Gandhi Institute of Petroleum Technology
- (An Institute of National Importance)
- Rae Bareli
- India
| | - Debashis Panda
- Rajiv Gandhi Institute of Petroleum Technology
- (An Institute of National Importance)
- Rae Bareli
- India
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37
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Yan LP, Oliveira JM, Oliveira AL, Reis RL. Core-shell silk hydrogels with spatially tuned conformations as drug-delivery system. J Tissue Eng Regen Med 2016; 11:3168-3177. [DOI: 10.1002/term.2226] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 04/16/2016] [Accepted: 04/19/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Le-Ping Yan
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Joaquim M. Oliveira
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Ana L. Oliveira
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
- CBQF - Center for Biotechnology and Fine Chemistry, School of Biotechnology; Portuguese Catholic University; Porto Portugal
| | - Rui L. Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
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38
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de Silva UK, Lapitsky Y. Preparation and Timed Release Properties of Self-Rupturing Gels. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29015-29024. [PMID: 27696808 DOI: 10.1021/acsami.6b09370] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Swelling of polymeric hydrogels is sensitive to their cross-link densities. Here, we exploit this principle to prepare self-rupturing gels which are based on a commonly-used, nontoxic, and inexpensive polyelectrolyte, poly(acrylic acid), and are prepared through a simple and low-cost polymerization-based technique. The self-rupture of these covalently cross-linked gels is achieved by preparing them to have highly nonuniform cross-link densities. This heterogeneity in cross-linking leads to highly nonuniform swelling, which generates stresses that are high enough to induce gel rupture. The time required for this rupture to occur depends on the difference in the cross-link densities between the adjoining gel regions, gel size, order in which the variably cross-linked gel portions are synthesized, and on the ambient pH and ionic strength. Furthermore, when these self-rupturing gels are prepared to have liquid-filled (capsule-like) morphologies, they can act as timed/delayed release devices. The self-rupture of these capsules provides a burst payload release after a preprogrammed delay, which is on the timescale of days and can be easily tuned by varying the rupture time, i.e., by varying either the cross-link nonuniformity or the pH and ionic strength of the release media.
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Affiliation(s)
- Udaka K de Silva
- Department of Chemical and Environmental Engineering, University of Toledo , Toledo, Ohio 43606, United States
| | - Yakov Lapitsky
- Department of Chemical and Environmental Engineering, University of Toledo , Toledo, Ohio 43606, United States
- School of Green Chemistry and Engineering, University of Toledo , Toledo, Ohio 43606, United States
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39
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Aguirre G, Ramos J, Forcada J. Advanced design of t and pH dual-responsive PDEAEMA-PVCL core-shell nanogels for siRNA delivery. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28207] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Garbiñe Aguirre
- POLYMAT, Bionanoparticles Group, Department of Applied Chemistry, UFI 11/56, Faculty of Chemistry; University of the Basque Country UPV/EHU; Apdo. 1072 Donostia-San Sebastián 20080 Spain
| | - Jose Ramos
- POLYMAT, Bionanoparticles Group, Department of Applied Chemistry, UFI 11/56, Faculty of Chemistry; University of the Basque Country UPV/EHU; Apdo. 1072 Donostia-San Sebastián 20080 Spain
| | - Jacqueline Forcada
- POLYMAT, Bionanoparticles Group, Department of Applied Chemistry, UFI 11/56, Faculty of Chemistry; University of the Basque Country UPV/EHU; Apdo. 1072 Donostia-San Sebastián 20080 Spain
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40
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Rittikulsittichai S, Kolhatkar AG, Sarangi S, Vorontsova MA, Vekilov PG, Brazdeikis A, Randall Lee T. Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers. NANOSCALE 2016; 8:11851-61. [PMID: 27227963 DOI: 10.1039/c5nr09235c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The research strategy described in this manuscript harnesses the attractive properties of hydrogels, gold nanorods (Aurods), and magnetic nanoparticles (MNPs) by synthesizing one unique multi-responsive nanostructure. This novel hybrid structure consists of silica-coated magnetic particles encapsulated within a thermo-responsive P(NIPAM-co-AA) hydrogel network on which Aurods are assembled. Furthermore, this research demonstrates that these composite particles respond to several forms of external stimuli (temperature, pH, light, and/or applied magnetic field) owing to their specific architecture. Exposure of the hybrid particles to external stimuli led to a systematic and reversible variation in the hydrodynamic diameter (swelling-deswelling) and thus in the optical properties of the hybrid particles (red-shifting of the plasmon band). Such stimuli-responsive volume changes can be effectively exploited in drug-delivery applications.
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Affiliation(s)
- Supparesk Rittikulsittichai
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA.
| | - Arati G Kolhatkar
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA.
| | - Subhasis Sarangi
- Department of Physics and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA
| | - Maria A Vorontsova
- Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA
| | - Peter G Vekilov
- Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA
| | - Audrius Brazdeikis
- Department of Physics and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA
| | - T Randall Lee
- Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA.
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41
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Begum R, Farooqi ZH, Khan SR. Poly(N-isopropylacrylamide-acrylic acid) copolymer microgels for various applications: A review. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1180607] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Xiao C, You R, Dong Y, Zhang Z. Tunable core–shell particles generated from smart water-soluble chitosan seeds. Carbohydr Polym 2016; 142:51-5. [DOI: 10.1016/j.carbpol.2016.01.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
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43
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Kodlekere P, Cartelle AL, Lyon LA. Design of functional cationic microgels as conjugation scaffolds. RSC Adv 2016. [DOI: 10.1039/c6ra00809g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We describe the development of primary amine functionalized microgels with the potential as dye scaffolds for bioimaging.
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Affiliation(s)
- Purva Kodlekere
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | | | - L. Andrew Lyon
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Schmid College of Science and Technology
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44
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45
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McMasters J, Panitch A. Prevention of Collagen-Induced Platelet Binding and Activation by Thermosensitive Nanoparticles. AAPS J 2015; 17:1117-25. [PMID: 26070443 PMCID: PMC4540739 DOI: 10.1208/s12248-015-9794-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 05/30/2015] [Indexed: 01/12/2023] Open
Abstract
Peripheral artery disease is an atherosclerotic occlusion in the peripheral vasculature that is typically treated via percutaneous transluminal angioplasty. Unfortunately, deployment of the angioplasty balloon damages the endothelial layer, exposing the underlying collagen and allowing for the binding and activation of circulating platelets, which initiate an inflammatory cascade leading to eventual restenosis. Here, we report on the development of poly(NIPAm-MBA-AMPS-AAc) nanoparticles that have a collagen I-binding peptide crosslinked to their surface allowing them to bind to exposed collagen. Once bound, these particles mask the exposed collagen from circulating platelets, effectively reducing collagen-mediated platelet activation. Using collagen I-coated plates, we demonstrate that these particles are able to bind to collagen at concentrations above 0.5 mg/mL. Once bound, these particles inhibit collagen-mediated platelet activation by over 60%. Using light scattering and zeta potential measurements, we investigated the potential of the nanoparticles as a drug delivery platform. We have verified that the collagen-binding nanoparticles retain the temperature sensitivity common to poly(NIPAm)-based nanoparticles while remaining colloidally stable in aqueous environments. We also demonstrate that they are able to passively load and release anti-inflammatory cell penetrating peptides. Combined, we have developed a collagen-binding nanoparticle that has dual therapy potential, preventing collagen-mediated platelet activation while delivering water-soluble therapeutics directly to the damaged area.
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Affiliation(s)
- James McMasters
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Dr., West Lafayette, Indiana 47907 USA
| | - Alyssa Panitch
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Dr., West Lafayette, Indiana 47907 USA
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46
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Cai XJ, Yuan HM, Blencowe A, Qiao GG, Genzer J, Spontak RJ. Film-Stabilizing Attributes of Polymeric Core-Shell Nanoparticles. ACS NANO 2015; 9:7940-7949. [PMID: 26146164 DOI: 10.1021/acsnano.5b00237] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-organization of nanoparticles into stable, molecularly thin films provides an insightful paradigm for manipulating the manner in which materials interact at nanoscale dimensions to generate unique material assemblies at macroscopic length scales. While prior studies in this vein have focused largely on examining the performance of inorganic or organic/inorganic hybrid nanoparticles (NPs), the present work examines the stabilizing attributes of fully organic core-shell microgel (CSMG) NPs composed of a cross-linked poly(ethylene glycol dimethacrylate) (PEGDMA) core and a shell of densely grafted, but relatively short-chain, polystyrene (PS) arms. Although PS homopolymer thin films measuring from a few to many nanometers in thickness, depending on the molecular weight, typically dewet rapidly from silica supports at elevated temperatures, spin-coated CSMG NP films measuring as thin as 10 nm remain stable under identical conditions for at least 72 h. Through the use of self-assembled monolayers (SAMs) to alter the surface of a flat silica-based support, we demonstrate that such stabilization is not attributable to hydrogen bonding between the acrylic core and silica. We also document that thin NP films consisting of three or less layers (10 nm) and deposited onto SAMs can be fully dissolved even after extensive thermal treatment, whereas slightly thicker films (40 nm) on Si wafer become only partially soluble during solvent rinsing with and without sonication. Taken together, these observations indicate that the present CSMG NP films are stabilized primarily by multidirectional penetration of relatively short, unentangled NP arms caused by NP layering, rather than by chain entanglement as in linear homopolymer thin films. This nanoscale "velcro"-like mechanism permits such NP films, unlike their homopolymer counterparts of comparable chain length and thickness, to remain intact as stable, free-floating sheets on water, and thus provides a viable alternative to ultrathin organic coating strategies.
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Affiliation(s)
- Xiao-Jing Cai
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Hao-Miao Yuan
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Anton Blencowe
- Department of Chemical & Biomolecular Engineering, University of Melbourne , Parkville, Victoria 3010, Australia
- Mawson Institute, Division of ITEE, The University of South Australia , Mawson Lakes, South Australia 5095, Australia
| | - Greg G Qiao
- Department of Chemical & Biomolecular Engineering, University of Melbourne , Parkville, Victoria 3010, Australia
| | - Jan Genzer
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
| | - Richard J Spontak
- Department of Chemical & Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695-7905, United States
- Department of Materials Science & Engineering, North Carolina State University , Raleigh, North Carolina 27695-7907, United States
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47
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Mane S, Ponrathnam S, Chavan N. Design and synthesis of cauliflower-shaped hydroxyl functionalized core-shell polymer. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1070504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Sachin Mane
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411008, India
| | - Surendra Ponrathnam
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411008, India
| | - Nayaku Chavan
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411008, India
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48
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Zhou X, Nie J, Xu J, Du B. Thermo-sensitive ionic microgels via post quaternization cross-linking: fabrication, property, and potential application. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3596-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Nguyen HH, Payré B, Fitremann J, Lauth-de Viguerie N, Marty JD. Thermoresponsive Properties of PNIPAM-Based Hydrogels: Effect of Molecular Architecture and Embedded Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:4761-4768. [PMID: 25828438 DOI: 10.1021/acs.langmuir.5b00008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Thermoresponsive hydrogels were successfully prepared from poly(N-isopropylacrylamide)-based polymers with different architectures (linear, branched, or hyperbranched). The macromolecular architectures strongly influence the internal structure of the hydrogels, therefore modulating their thermoresponsive and rheological properties. These hydrogels were used for the in situ synthesis of gold nanoparticles. Significant changes in hydrogel microstructures and in average pore size due to the presence of gold nanoparticles were observed. Additionally, their presence significantly increases both the mechanical strength and the toughness of the hydrogel networks.
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Affiliation(s)
- Hong Hanh Nguyen
- †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France
| | - Bruno Payré
- †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France
| | - Juliette Fitremann
- †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France
| | - Nancy Lauth-de Viguerie
- †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France
| | - Jean-Daniel Marty
- †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France
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Poh S, Lin JB, Panitch A. Release of anti-inflammatory peptides from thermosensitive nanoparticles with degradable cross-links suppresses pro-inflammatory cytokine production. Biomacromolecules 2015; 16:1191-200. [PMID: 25728363 PMCID: PMC4839979 DOI: 10.1021/bm501849p] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pro-inflammatory cytokines tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) are mediators in the development of many inflammatory diseases. To demonstrate that macrophages take up and respond to thermosensitive nanoparticle drug carriers, we synthesized PEGylated poly(N-isopropylacrylamide-2-acrylamido-2-methyl-1-propanesulfonate) particles cross-linked with degradable disulfide (N,N'-bis(acryloyl)cystamine) (NGPEGSS). An anti-inflammatory peptide (KAFAK) was loaded and released from the thermosensitive nanoparticles and shown to suppress levels of TNF-α and IL-6 production in macrophages. Cellular uptake of fluorescent, thermosensitive, and degradable nanoparticles and therapeutic efficacy of free KAFAK peptide compared to that of KAFAK loaded in PEGylated degradable thermosensitive nanoparticles were examined. The data suggests that the degradable, thermosensitive nanoparticles loaded with KAFAK may be an effective tool to treat inflammatory diseases.
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Affiliation(s)
- Scott Poh
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, Indiana 47907, United States
| | - Jenny B Lin
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, Indiana 47907, United States
| | - Alyssa Panitch
- Weldon School of Biomedical Engineering, Purdue University, 206 South Martin Jischke Drive, West Lafayette, Indiana 47907, United States
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