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Photosensitive Spherical Polymer Brushes: Light-Triggered Process of Particle Repulsion. Processes (Basel) 2023. [DOI: 10.3390/pr11030773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
We report on a light-triggered process at which repulsive interactions between microparticles with a polyelectrolyte (PE) brush coating can be remotely controlled. The spherical polyelectrolyte brushes are loaded with photosensitive azobenzene containing surfactant which can undergo reversible photo-isomerization from trans to cis state. The surfactant hydrophilicity is altered by illumination with light of an appropriate wavelength, at which a dynamic exchange of the more surface-active trans isomer in comparison to the more water soluble cis isomer with the PE brush generates a concentration gradient of the cis isomers near a solid surface where the particle is sedimented. In this way, each spherical brush produces its local lateral diffusioosmotic flow pointing outside in a radial direction resulting in mutual long-range repulsive interactions. We demonstrate that a PE layer has a higher tendency to absorb surfactant in comparison to plain silica particles, yielding a larger flow strength. This correlation holds true up to a critical intensity, where the dynamic exchange is adsorption limited with respect to trans isomers and especially pronounced for the PE-coated particles.
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2
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Thalji MR, Ibrahim AA, Chong KF, Soldatov AV, Ali GAM. Glycopolymer-Based Materials: Synthesis, Properties, and Biosensing Applications. Top Curr Chem (Cham) 2022; 380:45. [PMID: 35951265 PMCID: PMC9366760 DOI: 10.1007/s41061-022-00395-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022]
Abstract
Glycopolymer materials have emerged as a significant biopolymer class that has piqued the scientific community's attention due to their potential applications. Recently, they have been found to be a unique synthetic biomaterial; glycopolymer materials have also been used for various applications, including direct therapeutic methods, medical adhesives, drug/gene delivery systems, and biosensor applications. Therefore, for the next stage of biomaterial research, it is essential to understand current breakthroughs in glycopolymer-based materials research. This review discusses the most widely utilized synthetic methodologies for glycopolymer-based materials, their properties based on structure–function interactions, and the significance of these materials in biosensing applications, among other topics. When creating glycopolymer materials, contemporary polymerization methods allow precise control over molecular weight, molecular weight distribution, chemical activity, and polymer architecture. This review concludes with a discussion of the challenges and complexities of glycopolymer-based biosensors, in addition to their potential applications in the future.
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Affiliation(s)
- Mohammad R Thalji
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Gyeongbuk, South Korea
| | - Amal Amin Ibrahim
- Polymers and pigments department, Chemical industries research institute, National Research Centre, El-Bohouth St, Dokki, Cairo, 12622, Egypt
| | - Kwok Feng Chong
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, Gambang, 26300, Kuantan, Malaysia
| | - Alexander V Soldatov
- The Smart Materials Research Institute, Southern Federal University, Sladkova Str. 178/24, Rostov-on-Don, Russian Federation
| | - Gomaa A M Ali
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt.
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3
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Rushworth JL, Montgomery KS, Cao B, Brown R, Dibb NJ, Nilsson SK, Chiefari J, Fuchter MJ. Glycosylated Nanoparticles Derived from RAFT Polymerization for Effective Drug Delivery to Macrophages. ACS APPLIED BIO MATERIALS 2020; 3:5775-5786. [PMID: 35021808 DOI: 10.1021/acsabm.0c00529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The functional group tolerance and simplicity of reversible addition fragmentation chain transfer (RAFT) polymerization enable its use in the preparation of a wide range of functional polymer architectures for a variety of applications, including drug delivery. Given the role of tumor-associated macrophages (TAMs) in cancer and their dependence on the tyrosine kinase receptor FMS (CSF-1R), the key aim of this work was to achieve effective delivery of an FMS inhibitor to cells using a polymer delivery system. Such a system has the potential to exploit biological features specific to macrophages and therefore provide enhanced selectivity. Building on our prior work, we have prepared RAFT polymers based on a poly(butyl methacrylate-co-methacrylic acid) diblock, which were extended with a hydrophilic block, a cross-linker, and a mannose-based monomer scaffold, exploiting the abundance of macrophage mannose receptors (MMRs, CD206) on the surface of macrophages. We demonstrate that the prepared polymers can be assembled into nanoparticles and are successfully internalized into macrophages, in part, via the MMR (CD206). Finally, we showcase the developed nanoparticles in the delivery of an FMS inhibitor to cells, resulting in inhibition of the FMS receptor. As such, this study lays the groundwork for further drug-delivery studies aimed at specifically targeting TAMs with molecularly targeted therapeutics.
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Affiliation(s)
- James L Rushworth
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, London W12 0BZ, U.K.,CSIRO Manufacturing, Bag 10, Clayton South MDC, Victoria 3169, Australia
| | - Katherine S Montgomery
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, London W12 0BZ, U.K.,CSIRO Manufacturing, Bag 10, Clayton South MDC, Victoria 3169, Australia
| | - Benjamin Cao
- CSIRO Manufacturing, Bag 10, Clayton South MDC, Victoria 3169, Australia.,Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Robert Brown
- Department of Surgery & Cancer, Imperial College London, London SW7 2AZ, U.K
| | - Nick J Dibb
- Department of Surgery & Cancer, Imperial College London, London SW7 2AZ, U.K
| | - Susan K Nilsson
- CSIRO Manufacturing, Bag 10, Clayton South MDC, Victoria 3169, Australia.,Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
| | - John Chiefari
- CSIRO Manufacturing, Bag 10, Clayton South MDC, Victoria 3169, Australia
| | - Matthew J Fuchter
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, London W12 0BZ, U.K
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4
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Ribeiro JPM, Mendonça PV, Coelho JFJ, Matyjaszewski K, Serra AC. Glycopolymer Brushes by Reversible Deactivation Radical Polymerization: Preparation, Applications, and Future Challenges. Polymers (Basel) 2020; 12:E1268. [PMID: 32492977 PMCID: PMC7362234 DOI: 10.3390/polym12061268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 12/27/2022] Open
Abstract
The cellular surface contains specific proteins, also known as lectins, that are carbohydrates receptors involved in different biological events, such as cell-cell adhesion, cell recognition and cell differentiation. The synthesis of well-defined polymers containing carbohydrate units, known as glycopolymers, by reversible deactivation radical polymerization (RDRP) methods allows the development of tailor-made materials with high affinity for lectins because of their multivalent interaction. These polymers are promising candidates for the biomedical field, namely as novel diagnostic disease markers, biosensors, or carriers for tumor-targeted therapy. Although linear glycopolymers are extensively studied for lectin recognition, branched glycopolymeric structures, such as polymer brushes can establish stronger interactions with lectins. This specific glycopolymer topology can be synthesized in a bottlebrush form or grafted to/from surfaces by using RDRP methods, allowing a precise control over molecular weight, grafting density, and brush thickness. Here, the preparation and application of glycopolymer brushes is critically discussed and future research directions on this topic are suggested.
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Affiliation(s)
- Jessica P. M. Ribeiro
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Patrícia V. Mendonça
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Jorge F. J. Coelho
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Krzysztof Matyjaszewski
- Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA;
| | - Arménio C. Serra
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
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5
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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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6
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Mosaiab T, Farr DC, Kiefel MJ, Houston TA. Carbohydrate-based nanocarriers and their application to target macrophages and deliver antimicrobial agents. Adv Drug Deliv Rev 2019; 151-152:94-129. [PMID: 31513827 DOI: 10.1016/j.addr.2019.09.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/02/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022]
Abstract
Many deadly infections are produced by microorganisms capable of sustained survival in macrophages. This reduces exposure to chemadrotherapy, prevents immune detection, and is akin to criminals hiding in police stations. Therefore, the use of glyco-nanoparticles (GNPs) as carriers of therapeutic agents is a burgeoning field. Such an approach can enhance the penetration of drugs into macrophages with specific carbohydrate targeting molecules on the nanocarrier to interact with macrophage lectins. Carbohydrates are natural biological molecules and the key constituents in a large variety of biological events such as cellular communication, infection, inflammation, enzyme trafficking, cellular migration, cancer metastasis and immune functions. The prominent characteristics of carbohydrates including biodegradability, biocompatibility, hydrophilicity and the highly specific interaction of targeting cell-surface receptors support their potential application to drug delivery systems (DDS). This review presents the 21st century development of carbohydrate-based nanocarriers for drug targeting of therapeutic agents for diseases localized in macrophages. The significance of natural carbohydrate-derived nanoparticles (GNPs) as anti-microbial drug carriers is highlighted in several areas of treatment including tuberculosis, salmonellosis, leishmaniasis, candidiasis, and HIV/AIDS.
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Affiliation(s)
- Tamim Mosaiab
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia
| | - Dylan C Farr
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia
| | - Milton J Kiefel
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia.
| | - Todd A Houston
- Institute for Glycomics, Griffith University, Gold Coast Campus, QLD 4222, Australia.
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7
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Mckenzie A, Hoskins R, Swift T, Grant C, Rimmer S. Core (Polystyrene)-Shell [Poly(glycerol monomethacrylate)] Particles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:7577-7590. [PMID: 28192649 DOI: 10.1021/acsami.6b15004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A set of water-swollen core-shell particles was synthesized by emulsion polymerization of a 1,3-dioxolane functional monomer in water. After removal of the 1,3-dioxolane group, the particles' shells were shown to swell in aqueous media. Upon hydrolysis, the particles increased in size from around 70 to 100-130 nm. A bicinchoninic acid assay and ζ-potential measurements were used to investigate the adsorption of lysozyme, albumin, or fibrinogen. Each of the core-shell particles adsorbed significantly less protein than the noncoated core (polystyrene) particles. Differences were observed as both the amount of difunctional, cross-linking monomer and the amount of shell monomer in the feed were changed. The core-shell particles were shown to be resistant to protein adsorption, and the degree to which the three proteins adsorbed was dependent on the formulation of the shell.
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Affiliation(s)
- Andrew Mckenzie
- Department of Chemistry, University of Sheffield , Sheffield, South Yorkshire S3 7HF, U.K
| | - Richard Hoskins
- School of Chemistry and Biosciences, University of Bradford , Bradford, West Yorkshire BD7 1DP, U.K
| | - Thomas Swift
- School of Chemistry and Biosciences, University of Bradford , Bradford, West Yorkshire BD7 1DP, U.K
| | - Colin Grant
- Department of Engineering, University of Bradford , Bradford, West Yorkshire BD7 1DP, U.K
| | - Stephen Rimmer
- School of Chemistry and Biosciences, University of Bradford , Bradford, West Yorkshire BD7 1DP, U.K
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8
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Raju Kutcherlapati SN, Yeole N, Gadi MR, Perali RS, Jana T. RAFT mediated one-pot synthesis of glycopolymer particles with tunable core–shell morphology. Polym Chem 2017. [DOI: 10.1039/c6py02202b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel and one-pot RAFT mediated method for the synthesis of colloidal copolymers in which the particle shell is coated with protein binding glycopolymers.
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Affiliation(s)
| | - Niranjan Yeole
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
| | | | | | - Tushar Jana
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
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9
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Lu Y, Ballauff M. Spherical polyelectrolyte brushes as nanoreactors for the generation of metallic and oxidic nanoparticles: Synthesis and application in catalysis. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2016.03.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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11
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Pocci M, Alfei S, Lucchesini F, Castellaro S, Bertini V. Synthesis, glycosylation and NMR characterization of linear peracetylated d-galactose glycopolymers. RSC Adv 2015. [DOI: 10.1039/c5ra01265a] [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] Open
Abstract
Linear styrene glycopolymers containing peracetylated d-galactose units were prepared. Their glycosylation to introduce residues mimicking a substrate for copper amine oxidases was studied with the help of model molecules and NMR investigation.
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Affiliation(s)
- Marco Pocci
- Dipartimento di Farmacia
- Università di Genova
- I-16147 Genova
- Italy
| | - Silvana Alfei
- Dipartimento di Farmacia
- Università di Genova
- I-16147 Genova
- Italy
| | | | - Sara Castellaro
- Dipartimento di Farmacia
- Università di Genova
- I-16147 Genova
- Italy
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12
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Dhumure AB, Patil AB, Kulkarni AS, Voevodina I, Scandola M, Shinde VS. Thermoresponsive copolymers with pendant d-galactosyl 1,2,3-triazole groups: synthesis, characterization and thermal behavior. NEW J CHEM 2015. [DOI: 10.1039/c5nj01334h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of glycopolymers containing d-galactosyl 1,2,3-triazole groups were synthesized which exhibited thermosensitivity properties.
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Affiliation(s)
- Archana B. Dhumure
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Ajay B. Patil
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Anuja S. Kulkarni
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
| | - Irina Voevodina
- Department of Chemistry ‘G. Ciamician’
- University of Bologna
- 40126 Bologna
- Italy
| | | | - Vaishali S. Shinde
- Department of Chemistry
- Savitribai Phule Pune University (Formerly, University of Pune)
- Pune 411007
- India
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13
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Valtola L, Rahikkala A, Raula J, Kauppinen EI, Tenhu H, Hietala S. Synthesis and lectin recognition of glycosylated amphiphilic nanoparticles. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.07.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Green synthesis of silver nanoparticles with Dalbergia spinosa leaves and their applications in biological and catalytic activities. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.03.015] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Sun P, He Y, Lin M, Zhao Y, Ding Y, Chen G, Jiang M. Glyco-regioisomerism Effect on Lectin-Binding and Cell-Uptake Pathway of Glycopolymer-Containing Nanoparticles. ACS Macro Lett 2014; 3:96-101. [PMID: 35651117 DOI: 10.1021/mz400577p] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sugar regioisomerism (glycosidic linkage on different hydroxyl groups of the same sugar) widely exists in various polysaccharides and glycans with a significant contribution to their biological functions. However, the effects of this regioisomersim in glycopolymers and their self-assembled nanoparticles on such functions were almost not investigated previously. In this paper, this regioisomersim effect is studied for self-assembled nanoparticles NP-1-Gal and NP-6-Gal from triblock copolymers carrying different constitutional isomers of the pendent sugar species (1 and 6 denote the glycosidic linkage from the anomeric position and 6 position of the galactose unit, respectively). NP-1-Gal shows strong binding to lectins of Peanut (Arachis hypogea) agglutinin (PNA) and Erythrina cristagalli agglutinin (ECA), while NP-6-Gal does not. More importantly, they show binding behavior similar to the asialoglycoprotein receptor (ASGPR) but different internalization pathways in the Hep G2 cell after ASGPR-mediated endocytosis; i.e., NP-1-Gal can reach the early endosome, late endosome, as well as lysosome, while NP-6-Gal enters the early endosome only but not the others.
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Affiliation(s)
- Pengfei Sun
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yu He
- School
of Life Sciences, Fudan University, Shanghai 200433, China
| | - Mingchang Lin
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yu Zhao
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yu Ding
- School
of Life Sciences, Fudan University, Shanghai 200433, China
| | - Guosong Chen
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Ming Jiang
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
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Arslan H, Pfaff A, Lu Y, Stepanek P, Müller AHE. Stimuli-Responsive Spherical Brushes Based on D
-Galactopyranose and 2-(Dimethylamino)ethyl Methacrylate. Macromol Biosci 2013; 14:81-91. [DOI: 10.1002/mabi.201300290] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 08/01/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Hülya Arslan
- Makromolekulare Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
- Department of Chemistry; Bülent Ecevit University; 67100 Zonguldak Turkey
| | - André Pfaff
- Makromolekulare Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | - Yan Lu
- Soft Matter and Functional Materials; Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; 14109 Berlin
| | - Petr Stepanek
- Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic; Heyrovsky Sq. 2; 16206 Prague Czech Republic
| | - Axel H. E. Müller
- Makromolekulare Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
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Fertier L, Koleilat H, Stemmelen M, Giani O, Joly-Duhamel C, Lapinte V, Robin JJ. The use of renewable feedstock in UV-curable materials – A new age for polymers and green chemistry. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2012.12.002] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Synthesis of Glycopolymer Architectures by Reversible-Deactivation Radical Polymerization. Polymers (Basel) 2013. [DOI: 10.3390/polym5020431] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Vogt AP, Tischer T, Geckle U, Greiner AM, Trouillet V, Kaupp M, Barner L, Hofe T, Barner-Kowollik C. Access to Intrinsically Glucoside-Based Microspheres with Boron Affinity. Macromol Rapid Commun 2013; 34:916-21. [DOI: 10.1002/marc.201200834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 03/04/2013] [Indexed: 12/22/2022]
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20
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Synthetic Glycopolymers: Some Recent Developments. HIERARCHICAL MACROMOLECULAR STRUCTURES: 60 YEARS AFTER THE STAUDINGER NOBEL PRIZE II 2013. [DOI: 10.1007/12_2013_254] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Applications of Glyconanoparticles as “Sweet” Glycobiological Therapeutics and Diagnostics. MULTIFACETED DEVELOPMENT AND APPLICATION OF BIOPOLYMERS FOR BIOLOGY, BIOMEDICINE AND NANOTECHNOLOGY 2013. [DOI: 10.1007/12_2012_208] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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22
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Ghosh S, Patil S, Ahire M, Kitture R, Gurav DD, Jabgunde AM, Kale S, Pardesi K, Shinde V, Bellare J, Dhavale DD, Chopade BA. Gnidia glauca flower extract mediated synthesis of gold nanoparticles and evaluation of its chemocatalytic potential. J Nanobiotechnology 2012; 10:17. [PMID: 22548753 PMCID: PMC3462129 DOI: 10.1186/1477-3155-10-17] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Accepted: 05/01/2012] [Indexed: 12/21/2022] Open
Abstract
Background Novel approaches for synthesis of gold nanoparticles (AuNPs) are of utmost importance owing to its immense applications in diverse fields including catalysis, optics, medical diagnostics and therapeutics. We report on synthesis of AuNPs using Gnidia glauca flower extract (GGFE), its detailed characterization and evaluation of its chemocatalytic potential. Results Synthesis of AuNPs using GGFE was monitored by UV-Vis spectroscopy and was found to be rapid that completed within 20 min. The concentration of chloroauric acid and temperature was optimized to be 0.7 mM and 50°C respectively. Bioreduced nanoparticles varied in morphology from nanotriangles to nanohexagons majority being spherical. AuNPs were characterized employing transmission electron microscopy, high resolution transmission electron microscopy. Confirmation of elemental gold was carried out by elemental mapping in scanning transmission electron microscopic mode, energy dispersive spectroscopy and X-ray diffraction studies. Spherical particles of size ~10 nm were found in majority. However, particles of larger dimensions were in range between 50-150 nm. The bioreduced AuNPs exhibited remarkable catalytic properties in a reduction reaction of 4-nitrophenol to 4-aminophenol by NaBH4 in aqueous phase. Conclusion The elaborate experimental evidences support that GGFE can provide an environmentally benign rapid route for synthesis of AuNPs that can be applied for various purposes. Biogenic AuNPs synthesized using GGFE exhibited excellent chemocatalytic potential.
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Affiliation(s)
- Sougata Ghosh
- Institute of Bioinformatics and Biotechnology, University of Pune, Pune, 411007, India
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23
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Gong YK, Winnik FM. Strategies in biomimetic surface engineering of nanoparticles for biomedical applications. NANOSCALE 2012; 4:360-8. [PMID: 22134705 DOI: 10.1039/c1nr11297j] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Engineered nanoparticles (NPs) play an increasingly important role in biomedical sciences and in nanomedicine. Yet, in spite of significant advances, it remains difficult to construct drug-loaded NPs with precisely defined therapeutic effects, in terms of release time and spatial targeting. The body is a highly complex system that imposes multiple physiological and cellular barriers to foreign objects. Upon injection in the blood stream or following oral administation, NPs have to bypass numerous barriers prior to reaching their intended target. A particularly successful design strategy consists in masking the NP to the biological environment by covering it with an outer surface mimicking the composition and functionality of the cell's external membrane. This review describes this biomimetic approach. First, we outline key features of the composition and function of the cell membrane. Then, we present recent developments in the fabrication of molecules that mimic biomolecules present on the cell membrane, such as proteins, peptides, and carbohydrates. We present effective strategies to link such bioactive molecules to the NPs surface and we highlight the power of this approach by presenting some exciting examples of biomimetically engineered NPs useful for multimodal diagnostics and for target-specific drug/gene delivery applications. Finally, critical directions for future research and applications of biomimetic NPs are suggested to the readers.
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Affiliation(s)
- Yong-kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, PR China.
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Krasznai DJ, McKenna TFL, Cunningham MF, Champagne P, Smeets NMB. Polysaccharide-stabilized core cross-linked polymer micelle analogues. Polym Chem 2012. [DOI: 10.1039/c2py00601d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Amin A, Kandil H, Ramadan A, Ismail MN. Tethering of Homo and Block Glycopolymer Chains onto Montmorillonite Surface by Atom Transfer Radical Polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojopm.2012.24012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Preparation and lectin binding specificity of polystyrene particles grafted with glycopolymers bearing S-linked carbohydrates. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.09.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Affiliation(s)
- André Pfaff
- Macromolecular Chemistry II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Axel H. E. Müller
- Macromolecular Chemistry II, Universität Bayreuth, 95440 Bayreuth, Germany
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