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Zou H, Ren Y. Synthetic strategies for nonporous organosilica nanoparticles from organosilanes. NANOSCALE 2023. [PMID: 37326150 DOI: 10.1039/d3nr00791j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Organosilica nanoparticles refer to silica nanoparticles containing carbon along with organic or functional groups and can be divided into mesoporous organosilica nanoparticles and nonporous organosilica nanoparticles. During the past few decades, considerable efforts have been devoted to the development of organosilica nanoparticles directly from organosilanes. However, most of the reports have focused on mesoporous organosilica nanoparticles, while relatively few are concerned with nonporous organosilica nanoparticles. The synthesis of nonporous organosilica nanoparticles typically involves (i) self-condensation of an organosilane as the single source, (ii) co-condensation of two or more types of organosilanes, (iii) co-condensation of tetraalkoxysilane and an organosilane, and (iv) spontaneous emulsification and the subsequent radical polymerization of 3-(trimethoxysilyl)propyl methacrylate (TPM). This article aims to provide a review on the synthetic strategies of this important type of colloidal particle, followed by a brief discussion on their applications and future perspectives.
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Affiliation(s)
- Hua Zou
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Yuhang Ren
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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2
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Nakamura S, Mitomo H, Suzuki S, Torii Y, Sekizawa Y, Yonamine Y, Ijiro K. Self-Assembly of Gold Nanorods into a Highly Ordered Sheet via Electrostatic Interactions with Double-Stranded DNA. CHEM LETT 2022. [DOI: 10.1246/cl.220069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Satoshi Nakamura
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
| | - Hideyuki Mitomo
- Research Institute for Electronic Science, Hokkaido University, Kita 21, Nishi 10, Kita-Ku, Sapporo 001-0021, Japan
| | - Shigeaki Suzuki
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
| | - Yu Torii
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
| | - Yu Sekizawa
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-Ku, Sapporo 060-0810, Japan
| | - Yusuke Yonamine
- Research Institute for Electronic Science, Hokkaido University, Kita 21, Nishi 10, Kita-Ku, Sapporo 001-0021, Japan
| | - Kuniharu Ijiro
- Research Institute for Electronic Science, Hokkaido University, Kita 21, Nishi 10, Kita-Ku, Sapporo 001-0021, Japan
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Kazybayeva DS, Irmukhametova GS, Khutoryanskiy VV. Thiol-Ene “Click Reactions” as a Promising Approach to Polymer Materials. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422010055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Hock N, Racaniello GF, Aspinall S, Denora N, Khutoryanskiy VV, Bernkop‐Schnürch A. Thiolated Nanoparticles for Biomedical Applications: Mimicking the Workhorses of Our Body. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102451. [PMID: 34773391 PMCID: PMC8728822 DOI: 10.1002/advs.202102451] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/13/2021] [Indexed: 05/03/2023]
Abstract
Advances in nanotechnology have generated a broad range of nanoparticles (NPs) for numerous biomedical applications. Among the various properties of NPs are functionalities being related to thiol substructures. Numerous biological processes that are mediated by cysteine or cystine subunits of proteins representing the workhorses of the bodies can be transferred to NPs. This review focuses on the interface between thiol chemistry and NPs. Pros and cons of different techniques for thiolation of NPs are discussed. Furthermore, the various functionalities gained by thiolation are highlighted. These include overall bio- and mucoadhesive, cellular uptake enhancing, and permeation enhancing properties. Drugs being either covalently attached to thiolated NPs via disulfide bonds or being entrapped in thiolated polymeric NPs that are stabilized via inter- and intrachain crosslinking can be released at the diseased tissue or in target cells under reducing conditions. Moreover, drugs, targeting ligands, biological analytes, and enzymes bearing thiol substructures can be immobilized on noble metal NPs and quantum dots for therapeutic, theranostic, diagnostic, biosensing, and analytical reasons. Within this review a concise summary and analysis of the current knowledge, future directions, and potential clinical use of thiolated NPs are provided.
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Affiliation(s)
- Nathalie Hock
- Thiomatrix Forschungs und Beratungs GmbHTrientlgasse 65Innsbruck6020Austria
| | | | - Sam Aspinall
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Nunzio Denora
- Department of Pharmacy – Pharmaceutical SciencesUniversity of Bari “Aldo Moro”Bari70125Italy
| | - Vitaliy V. Khutoryanskiy
- Reading School of PharmacyUniversity of ReadingWhiteknights PO Box 224, Room 122 (Chemistry and Pharmacy Building)ReadingRG66DXUK
| | - Andreas Bernkop‐Schnürch
- Department of Pharmaceutical Technology, Institute of PharmacyUniversity of InnsbruckInnrain 80/82Innsbruck6020Austria
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5
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Understanding the temperature induced aggregation of silica nanoparticles decorated with temperature-responsive polymers: Can a small step in the chemical structure make a giant leap for a phase transition? J Colloid Interface Sci 2021; 590:249-259. [PMID: 33548608 DOI: 10.1016/j.jcis.2021.01.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/14/2021] [Accepted: 01/17/2021] [Indexed: 11/20/2022]
Abstract
Temperature-responsive nanomaterials have gained increasing interest over the past decade due their ability to undergo conformational changes in situ, in response to a change in temperature. One class of temperature-responsive polymers are those with lower critical solution temperature, which phase separate in aqueous solution above a critical temperature. When these temperature-responsive polymers are grafted to a solid nanoparticle, a change in their surface properties occurs above this critical temperature, from hydrophilic to more hydrophobic, giving them a propensity to aggregate. This study explores the temperature induced aggregation of silica nanoparticles functionalised with two isomeric temperature-responsive polymers with lower critical solution temperature (LCST) behavior, namely poly(N-isopropyl acrylamide) (PNIPAM), and poly(2-n-propyl-2-oxazoline) (PNPOZ) with similar molecular weights (5000 Da) and grafting density. These nanoparticles exhibited striking differences in the temperature of aggregation, which is consistent with LCST of each polymer. Using a combination of small-angle neutron scattering (SANS) and dynamic light scattering (DLS), we probed subtle differences in the aggregation mechanism for PNIPAM- and PNPOZ-decorated silica nanoparticles. The nanoparticles decorated with PNIPAM and PNPOZ show similar aggregation mechanism that was independent of polymer structure, whereby aggregation starts by the formation of small aggregates. A further increase in temperature leads to interaction between these aggregates and results in full-scale aggregation and subsequent phase separation.
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Liang R, Fang X, Qiu B, Zou H. One-step synthesis of golf ball-like thiol-functionalized silica particles. SOFT MATTER 2020; 16:9113-9120. [PMID: 32914806 DOI: 10.1039/d0sm01214a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
There is increasing interest in the synthesis of golf ball-like particles. Most of the reports on golf ball-like particles have focused on polymer particles, while relatively few are concerned with inorganic particles. In this work, golf ball-like thiol-functionalized silica particles were synthesized for the first time by a one-step sol-gel reaction using 3-mercaptopropyl trimethoxysilane (MPTMS) and tetraethoxysilane (TEOS) as the precursors. The particle growth with time was monitored by SEM and a particle formation mechanism was proposed. The effects of different reaction parameters including the TEOS/MPTMS molar ratio, the NH4OH concentration, and the stirring rate on the morphology and size of the golf ball-like organosilica particles were studied. Given that the thiol groups have versatile functionalities, golf ball-like thiol-functionalized silica particle is a useful model for academic studies.
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Affiliation(s)
- Ruixue Liang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Xia Fang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Biwei Qiu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
| | - Hua Zou
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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7
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Porfiryeva NN, Moustafine RI, Khutoryanskiy VV. PEGylated Systems in Pharmaceutics. POLYMER SCIENCE SERIES C 2020. [DOI: 10.1134/s181123822001004x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Horst N, Nayak S, Wang W, Mallapragada S, Vaknin D, Travesset A. Superlattice assembly by interpolymer complexation. SOFT MATTER 2019; 15:9690-9699. [PMID: 31720681 DOI: 10.1039/c9sm01659g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We present a coarse grained model for a system where nanocrystals are functionalized with a polymer that is a hydrogen bond acceptor, such as polyethylene glycol (PEG), and are dispersed in a solution with a polymer whose monomers consist of a hydrogen bond donor, such as polyacrylic acid (PAA) at low pH (interpolymer complexation). We determine the minimum concentration of the polymer donor to induce aggregation and the structure and dynamics of the induced (fcc) superlattice. Our results are compared to previous and new experiments.
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Affiliation(s)
- Nathan Horst
- Ames Laboratory, and Iowa State University Department of Materials Science and Engineering, Ames, Iowa 50011, USA.
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Wang LS, Gopalakrishnan S, Rotello VM. Tailored Functional Surfaces Using Nanoparticle and Protein "Nanobrick" Coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10993-11006. [PMID: 30543751 DOI: 10.1021/acs.langmuir.8b03235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Surface properties are an essential feature in a wide range of functional materials. In this article, we summarize strategies developed in our group that employ nanoparticles and proteins as nanobricks to create thin-film coatings on surfaces. These coatings contain tailorable surface functionality based on the properties of the predesigned nanobricks, parlaying both the chemical and structural features of the precursor particles and proteins. This strategy is versatile, providing the rapid generation of both uniform and patterned coatings that provide "plug-and-play" customizable surfaces for materials and biomedical applications.
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Affiliation(s)
- Li-Sheng Wang
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Sanjana Gopalakrishnan
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Vincent M Rotello
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
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10
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Controlled PEGylation of periodic mesoporous organosilica nanospheres for improving their stability in physiological solutions. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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11
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Serres-Gómez M, González-Gaitano G, Kaldybekov DB, Mansfield EDH, Khutoryanskiy VV, Isasi JR, Dreiss CA. Supramolecular Hybrid Structures and Gels from Host-Guest Interactions between α-Cyclodextrin and PEGylated Organosilica Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10591-10602. [PMID: 30095271 DOI: 10.1021/acs.langmuir.8b01744] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Polypseudorotaxanes are polymer chains threaded by molecular rings that are free to unthread; these "pearl-necklace" can self-assemble further, leading to higher-order supramolecular structures with interesting functionalities. In this work, the complexation between α-cyclodextrin (α-CD), a cyclic oligosaccharide of glucopyranose units, and poly(ethylene glycol) (PEG) grafted to silica nanoparticles was studied. The threading of α-CD onto the polymeric chains leads to their aggregation into bundles, followed by either the precipitation of the inclusion complex or the formation of a gel phase, in which silica nanoparticles are incorporated. The kinetics of threading, followed by turbidimetry, revealed a dependence of the rate of complexation on the following parameters: the concentration of α-CD, temperature, PEG length (750, 4000, and 5000 g mol-1), whether the polymer is grafted or free in solution, and the density of grafting. Complexation is slower, and temperature has a higher impact on PEG grafted on silica nanoparticles compared to PEG free in solution. Thermodynamic parameters extracted from the transition-state theory showed that inclusion complex formation is favored with grafted PEG compared to free PEG and establishes a ratio of complexation of five to six ethylene oxide units per cyclodextrin. The complexation yields, determined by gravimetry, revealed that much higher yields are obtained with longer chains and higher grafting density. Thermogravimetric analysis and Fourier transform infrared spectroscopy on the inclusion complex corroborate the number of macrocycles threaded on the chains. A sol-gel transition was observed with the longer PEG chain (5k) at specific mixing ratios; oscillatory shear rheology measurements confirmed a highly solid-like behavior, with an elastic modulus G' of up to 25 kPa, higher than that in the absence of silica. These results thus provide the key parameters dictating inclusion complex formation between cyclodextrin and PEG covalently attached to colloidal silica and demonstrate a facile route toward soft nanoparticle gels based on host-guest interactions.
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Affiliation(s)
- Mariana Serres-Gómez
- Department of Chemistry , University of Navarra , 31080 Pamplona , Spain
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Sciences , King's College London , Franklin-Wilkins Building, 150 Stamford Street , SE1 9NH London , U.K
| | | | - Daulet B Kaldybekov
- Reading School of Pharmacy , University of Reading , Whiteknights, P.O. Box 224, RG6 6AD Reading , U.K
- Faculty of Chemistry and Chemical Technology , Al-Farabi Kazakh National University , Almaty 050040 , Kazakhstan
| | - Edward D H Mansfield
- Reading School of Pharmacy , University of Reading , Whiteknights, P.O. Box 224, RG6 6AD Reading , U.K
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy , University of Reading , Whiteknights, P.O. Box 224, RG6 6AD Reading , U.K
| | - José Ramón Isasi
- Department of Chemistry , University of Navarra , 31080 Pamplona , Spain
| | - Cécile A Dreiss
- Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Sciences , King's College London , Franklin-Wilkins Building, 150 Stamford Street , SE1 9NH London , U.K
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12
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Al Mahrooqi JH, Mun EA, Williams AC, Khutoryanskiy VV. Controlling the Size of Thiolated Organosilica Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8347-8354. [PMID: 29909627 DOI: 10.1021/acs.langmuir.8b01556] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoparticle characteristics, including their size, are governed by the reagents employed and the reaction parameters. Here, we systemically vary the catalyst, oxygen content, temperature, and solvent to modify the size and zeta-potential of thiolated organosilica nanoparticles. The particles were synthesized by self-condensation of 3-mercaptopropyltrimethoxysilane in a range of organic solvents in contact with oxygen, with NaOH and other catalysts. The particle size increased with increasing reaction temperature (70 ± 1 nm at 50 °C; 50 ± 1 nm at room temperature) but decreased when air was bubbled through the reaction mixture compared to no bubbling. A significant decrease in the particle size was seen when increasing the dielectric constant of the solvent and when increasing the catalyst concentration; from these, we provide empirical equations that can be used to design particle sizes by manipulating the dielectric constant of the solvent (or cosolvents) or by varying the NaOH catalyst concentration when dimethylsulfoxide is the selected solvent.
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Affiliation(s)
| | - Ellina A Mun
- Reading School of Pharmacy , University of Reading , Reading RG6 6AD , U.K
| | - Adrian C Williams
- Reading School of Pharmacy , University of Reading , Reading RG6 6AD , U.K
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13
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Ways TMM, Lau WM, Ng KW, Khutoryanskiy VV. Synthesis of thiolated, PEGylated and POZylated silica nanoparticles and evaluation of their retention on rat intestinal mucosa in vitro. Eur J Pharm Sci 2018; 122:230-238. [PMID: 29969667 DOI: 10.1016/j.ejps.2018.06.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/29/2018] [Accepted: 06/29/2018] [Indexed: 11/24/2022]
Abstract
In this study, we synthesised thiolated silica nanoparticles using 3-mercaptopropyltrimethoxysilane and functionalised them with either 5 kDa methoxy polyethylene glycol maleimide (PEG) or 5 kDa alkyne-terminated poly(2-ethyl-2-oxazoline) (POZ). The main objectives of this study are to investigate the effects of pH on the size and ξ-potential of these nanoparticles and evaluate their mucoadhesive properties ex vivo using rat intestinal mucosa. The sizes of thiolated, PEGylated and POZylated silica nanoparticles were 53 ± 1, 68 ± 1 and 59 ± 1 nm, respectively. The size of both thiolated and POZylated nanoparticles significantly increased at pH ≤ 2, whereas no size change was observed at pH 2.5-9 for both these two types of nanoparticles. On the other hand, the size of PEGylated nanoparticles did not change over the studied pH range (1.5-9). Moreover, thiolated nanoparticles were more mucoadhesive in the rat small intestine than both PEGylated and POZylated nanoparticles. After 12 cycles of washing (with a total of 20 mL of phosphate buffer solution pH 6.8), a significantly greater amount of thiolated nanoparticles remained on the intestinal mucosa than FITC-dextran (non-mucoadhesive polymer, p < 0.005) and both PEGylated and POZylated nanoparticles (p < 0.05 both). However, both PEGylated and POZylated nanoparticles showed similar retention to FITC-dextran (p > 0.1 for both). Thus, this study indicates that thiolated nanoparticles are mucoadhesive, whereas PEGylated and POZylated nanoparticles are non-mucoadhesive in the ex vivo rat intestinal mucosa model. Each of these nanoparticles has potential applications in mucosal drug delivery.
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Affiliation(s)
- Twana Mohammed M Ways
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
| | - Wing Man Lau
- School of Pharmacy, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Keng Wooi Ng
- School of Pharmacy, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom.
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14
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Mansfield EDH, de la Rosa VR, Kowalczyk RM, Grillo I, Hoogenboom R, Sillence K, Hole P, Williams AC, Khutoryanskiy VV. Side chain variations radically alter the diffusion of poly(2-alkyl-2-oxazoline) functionalised nanoparticles through a mucosal barrier. Biomater Sci 2018; 4:1318-27. [PMID: 27400181 DOI: 10.1039/c6bm00375c] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Functionalised nanomaterials are gaining popularity for use as drug delivery vehicles and, in particular, mucus penetrating nanoparticles may improve drug bioavailability via the oral route. To date, few polymers have been investigated for their muco-penetration, and the effects of systematic structural changes to polymer architectures on the penetration and diffusion of functionalised nanomaterials through mucosal tissue have not been reported. We investigated the influence of poly(2-oxazoline) alkyl side chain length on nanoparticle diffusion; poly(2-methyl-2-oxazoline), poly(2-ethyl-2-oxazoline), and poly(2-n-propyl-2-oxazoline) were grafted onto the surface of thiolated silica nanoparticles and characterised by FT-IR, Raman and NMR spectroscopy, thermogravimetric analysis, and small angle neutron scattering. Diffusion coefficients were determined in water and in a mucin dispersion (using Nanoparticle Tracking Analysis), and penetration through a mucosal barrier was assessed using an ex vivo fluorescence technique. The addition of a single methylene group in the side chain significantly altered the penetration and diffusion of the materials in both mucin dispersions and mucosal tissue. Nanoparticles functionalised with poly(2-methyl-2-oxazoline) were significantly more diffusive than particles with poly(2-ethyl-2-oxazoline) while particles with poly(2-n-propyl-2-oxazoline) showed no significant increase compared to the unfunctionalised particles. These data show that variations in the polymer structure can radically alter their diffusive properties with clear implications for the future design of mucus penetrating systems.
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Affiliation(s)
- Edward D H Mansfield
- School of Pharmacy, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UK.
| | - Victor R de la Rosa
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium.
| | - Radoslaw M Kowalczyk
- Chemical Analysis Facility, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UK
| | - Isabelle Grillo
- Institut Laue-Langevin, 71 avenue des Martyrs, 38000 Grenoble, France
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium.
| | - Katy Sillence
- Malvern Instruments Limited, London Road, Minton Park, Amesbury, Wiltshire SP4 7RT, UK
| | - Patrick Hole
- Malvern Instruments Limited, London Road, Minton Park, Amesbury, Wiltshire SP4 7RT, UK
| | - Adrian C Williams
- School of Pharmacy, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UK.
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15
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Mansfield EDH, Pandya Y, Mun EA, Rogers SE, Abutbul-Ionita I, Danino D, Williams AC, Khutoryanskiy VV. Structure and characterisation of hydroxyethylcellulose–silica nanoparticles. RSC Adv 2018; 8:6471-6478. [PMID: 35540425 PMCID: PMC9078266 DOI: 10.1039/c7ra08716k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 01/29/2018] [Indexed: 12/01/2022] Open
Abstract
Functionalising nanoparticles with polymers has gained much interest in recent years, as it aids colloidal stability and manipulation of surface properties. Here, polymer-coated thiolated silica nanoparticles were synthesised by self-condensation of 3-mercaptopropyltrimethoxysilane in the presence of hydroxyethylcellulose. These nanoparticles were characterised by dynamic light scattering, small angle neutron scattering, Nanoparticle Tracking Analysis, Raman spectroscopy, FT-IR spectroscopy, thermogravimetric analysis, Ellman's assay, transmission electron microscopy and cryo-transmission electron microscopy. It was found that increasing the amount of hydroxyethylcellulose in the reaction mixture increased the nanoparticle size and reduced the number of thiol groups on their surface. Additionally, by utilising small angle neutron scattering and dynamic light scattering, it was demonstrated that higher concentrations of polymer in the reaction mixture (0.5–2% w/v) resulted in the formation of aggregates, whereby several silica nanoparticles are bridged together with macromolecules of hydroxyethylcellulose. A correlation was identified between the aggregate size and number of particles per aggregate based on size discrepancies observed between DLS and SANS measurements. This information makes it possible to control the size of aggregates during a simple one-pot synthesis; a prospect highly desirable in the design of potential drug delivery systems. Polymer-coated thiolated silica nanoparticles were synthesised by self-condensation of 3-mercaptopropyltrimethoxysilane in the presence of hydroxyethylcellulose.![]()
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Affiliation(s)
| | - Yash Pandya
- School of Pharmacy
- University of Reading
- Reading
- UK
| | | | - Sarah E. Rogers
- ISIS Spallation Neutron Source
- Science and Technology Facilities Council
- Rutherford Appleton Laboratory
- Harwell Science and Innovation Campus
- Didcot
| | - Inbal Abutbul-Ionita
- Technion – Israel Institute of Technology
- Faculty of Biotechnology and Food Engineering
- Israel
| | - Dganit Danino
- Technion – Israel Institute of Technology
- Faculty of Biotechnology and Food Engineering
- Israel
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16
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Reversible molecular adsorption of free-standing nano-composite film made from boehmite and poly(acrylic acid). Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Mun EA, Williams AC, Khutoryanskiy VV. Adhesion of thiolated silica nanoparticles to urinary bladder mucosa: Effects of PEGylation, thiol content and particle size. Int J Pharm 2016; 512:32-38. [PMID: 27530813 DOI: 10.1016/j.ijpharm.2016.08.026] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/10/2016] [Accepted: 08/13/2016] [Indexed: 12/15/2022]
Abstract
Intravesical drug administration is used to deliver cytotoxic agents through a catheter to treat bladder cancer. One major limitation of this approach is poor retention of the drug in the bladder due to periodic urine voiding. Mucoadhesive dosage forms thus offer significant potential to improve drug retention in the bladder. Here, we investigate thiolated silica nanoparticles retention on porcine bladder mucosa in vitro, quantified through Wash Out50 (WO50) values, defined as the volume of liquid necessary to remove 50% of the adhered particles from a mucosal tissue. Following irrigation with artificial urine solution, the thiolated nanoparticles demonstrate significantly greater retention (WO50 up to 36mL) compared to non-mucoadhesive dextran (WO50 7mL), but have weaker mucoadhesive properties than chitosan (WO50 89mL). PEGylation of thiolated silica reduces their mucoadhesion with WO50 values of 29 and 8mL for particles decorated with 750 and 5000Da PEG, respectively. The retention of thiolated silica nanoparticles is dependent on their thiol group contents and physical dimensions.
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Affiliation(s)
- Ellina A Mun
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
| | - Adrian C Williams
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom.
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18
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Wang XD, Rabe KS, Ahmed I, Niemeyer CM. Multifunctional Silica Nanoparticles for Covalent Immobilization of Highly Sensitive Proteins. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:7945-50. [PMID: 26572079 DOI: 10.1002/adma.201503935] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 09/30/2015] [Indexed: 05/25/2023]
Abstract
A convenient reverse micellar one-pot reaction yields multifunctional silica nanoparticles, which can be tailored to effectively suppress non-specific adsorption and, at the same time, enable efficient specific covalent immobilization of proteins. Using two highly sensitive proteins, it is demonstrated that the new particles provide a suitable microenvironment to maintain the protein's activity.
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Affiliation(s)
- Xu-Dong Wang
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG-1), Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany
| | - Kersten S Rabe
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG-1), Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ishtiaq Ahmed
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG-1), Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christof M Niemeyer
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG-1), Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany
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19
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Neal CJ, Das S, Saraf S, Tetard L, Seal S. Self-Assembly of PEG-Coated Ceria Nanoparticles Shows Dependence on PEG Molecular Weight and Ageing. Chempluschem 2015; 80:1680-1690. [DOI: 10.1002/cplu.201500237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 06/10/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Craig J. Neal
- Advanced Materials Processing and Analysis Center; Materials Science and Engineering; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
| | - Soumen Das
- Advanced Materials Processing and Analysis Center; Materials Science and Engineering; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
- Nanoscience Technology Center; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
| | - Shashank Saraf
- Advanced Materials Processing and Analysis Center; Materials Science and Engineering; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
| | - Laurene Tetard
- Nanoscience Technology Center; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center; Materials Science and Engineering; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
- Nanoscience Technology Center; University of Central Florida; 4000 Central Florida Blvd Orlando FL 32816 USA
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20
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Jiao P, Guo Y, Niu A, Kang X. Layer-by-layer assembled protein nanotubes with high DNA affinity. RSC Adv 2015. [DOI: 10.1039/c5ra04725k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Layer-by-layer assembled protein nanotubes show extremely high adsorption capacity for DNA molecules.
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Affiliation(s)
- Peipei Jiao
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Yanli Guo
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Aihua Niu
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Xiaofeng Kang
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry
- College of Chemistry & Materials Science
- Northwest University
- Xi'an
- P. R. China
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21
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Mun EA, Morrison PWJ, Williams AC, Khutoryanskiy VV. On the Barrier Properties of the Cornea: A Microscopy Study of the Penetration of Fluorescently Labeled Nanoparticles, Polymers, and Sodium Fluorescein. Mol Pharm 2014; 11:3556-64. [DOI: 10.1021/mp500332m] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ellina A. Mun
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
| | - Peter W. J. Morrison
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
| | - Adrian C. Williams
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
| | - Vitaliy V. Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading, RG6 6AD, United Kingdom
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22
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Borges J, Mano JF. Molecular Interactions Driving the Layer-by-Layer Assembly of Multilayers. Chem Rev 2014; 114:8883-942. [DOI: 10.1021/cr400531v] [Citation(s) in RCA: 609] [Impact Index Per Article: 60.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- João Borges
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
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23
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Mun EA, Hannell C, Rogers SE, Hole P, Williams AC, Khutoryanskiy VV. On the role of specific interactions in the diffusion of nanoparticles in aqueous polymer solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:308-17. [PMID: 24354390 PMCID: PMC3931530 DOI: 10.1021/la4029035] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/12/2013] [Indexed: 05/22/2023]
Abstract
Understanding nanoparticle diffusion within non-Newtonian biological and synthetic fluids is essential in designing novel formulations (e.g., nanomedicines for drug delivery, shampoos, lotions, coatings, paints, etc.), but is presently poorly defined. This study reports the diffusion of thiolated and PEGylated silica nanoparticles, characterized by small-angle neutron scattering, in solutions of various water-soluble polymers such as poly(acrylic acid) (PAA), poly(N-vinylpyrrolidone) (PVP), poly(ethylene oxide) (PEO), and hydroxyethylcellulose (HEC) probed using NanoSight nanoparticle tracking analysis. Results show that the diffusivity of nanoparticles is affected by their dimensions, medium viscosity, and, in particular, the specific interactions between nanoparticles and the macromolecules in solution; strong attractive interactions such as hydrogen bonding hamper diffusion. The water-soluble polymers retarded the diffusion of thiolated particles in the order PEO > PVP > PAA > HEC whereas for PEGylated silica particles retardation followed the order PAA > PVP = HEC > PEO. In the absence of specific interactions with the medium, PEGylated nanoparticles exhibit enhanced mobility compared to their thiolated counterparts despite some increase in their dimensions.
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Affiliation(s)
- Ellina A. Mun
- Reading School of Pharmacy, University of Reading, Whiteknights, P.O. Box 224, Reading, Berkshire RG6
6AD, U.K.
| | - Claire Hannell
- NanoSight Ltd, Minton Park, London Road, Amesbury SP4 7RT, U.K.
| | - Sarah E. Rogers
- ISIS Spallation Neutron
Source, Science and Technology Facilities Council, Rutherford Appleton
Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX U.K.
| | - Patrick Hole
- NanoSight Ltd, Minton Park, London Road, Amesbury SP4 7RT, U.K.
| | - Adrian C. Williams
- Reading School of Pharmacy, University of Reading, Whiteknights, P.O. Box 224, Reading, Berkshire RG6
6AD, U.K.
| | - Vitaliy V. Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, P.O. Box 224, Reading, Berkshire RG6
6AD, U.K.
- E-mail: ,. Tel: +44 (0) 118 373 6119
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24
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Li J, Zhang X, Chen S, You Q, He R, Shi J, Cao Y, Chen Y. Multi-responsive drug release from hydrogen-bonding multilayers containing PEGylated nanoparticles and azobenzenes. J Mater Chem B 2014; 2:4422-4425. [DOI: 10.1039/c3tb21651a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the design of a platform that is assembled within hydrogen-bonding nanoparticle/azobenzene multilayer films for multi-responsive drug release.
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Affiliation(s)
- Jin Li
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Xiaoyong Zhang
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Shengqiu Chen
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Qingliang You
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Rongxiang He
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Jian Shi
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Yiping Cao
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
| | - Yong Chen
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- Jianghan University
- Wuhan 430056, China
- Département de Chimie
- Ecole Normale Supérieure
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25
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Jeong K, Lee YD, Park S, Lee E, Lim CK, Lee KE, Jeon H, Kim J, Chan Kwon I, Park CR, Kim S. Poly(oxyethylene sugaramide)s: unprecedented multihydroxyl building blocks for tumor-homing nanoassembly. J Mater Chem B 2013; 1:3437-3442. [PMID: 32260933 DOI: 10.1039/c3tb20387e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonding is a major intermolecular interaction for self-assembly occurring in nature. Here we report novel polymeric carbohydrates, i.e., poly(oxyethylene galactaramide)s (PEGAs), as biomimetic building blocks to construct hydrogen bond-mediated self-assembled nanoparticles that are useful for biomedical in vivo applications. PEGAs were conceptually designed as a biocompatible hybrid between polysaccharide and poly(ethylene glycol) (PEG) to attain multivalent hydrogen bonding as well as fully hydrophilic, non-ionic and antifouling characteristics. It was revealed that PEGAs are capable of homospecies hydrogen bonding in water and constructing multi-chain assembled nanoparticles whose structural integrity is highly stable with varying concentration, temperature and pH. Using near-infrared fluorescence imaging we demonstrate facile blood circulation and efficient tumor accumulation of the self-assembled PEGA nanoparticles that were intravenously injected into mice. These in vivo behaviors elucidate the combined merits of our design strategy, i.e., biocompatible chemical constitution capable of multivalent hydrogen bonding, antifouling properties, minimal cell interaction and mesoscopic colloidal self-assembly, as well as size-motivated tumor targeting.
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Affiliation(s)
- Keunsoo Jeong
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea.
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26
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Valtchev V, Tosheva L. Porous Nanosized Particles: Preparation, Properties, and Applications. Chem Rev 2013; 113:6734-60. [DOI: 10.1021/cr300439k] [Citation(s) in RCA: 456] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Valentin Valtchev
- Laboratoire Catalyse & Spectrochimie, ENSICAEN, Université de Caen, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Lubomira Tosheva
- Division of Chemistry and Environmental
Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
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27
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Štorha A, Mun EA, Khutoryanskiy VV. Synthesis of thiolated and acrylated nanoparticles using thiol-ene click chemistry: towards novel mucoadhesive materials for drug delivery. RSC Adv 2013. [DOI: 10.1039/c3ra42093k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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