1
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Lima MRN, Le KPN, Chakhalian D, Mao Y, Kohn J, Devore DI. Tyrosine-derived polymeric surfactant nanospheres insert cholesterol in cell membranes. J Colloid Interface Sci 2023; 644:264-274. [PMID: 37120875 DOI: 10.1016/j.jcis.2023.04.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 03/22/2023] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
HYPOTHESIS The design of biodegradable tyrosine-derived polymeric surfactants (TyPS) through the use of calculated thermodynamic parameters could lead to phospholipid membrane surface modifiers capable of controlling cellular properties such as viability. Delivery of cholesterol by TyPS nanospheres into membrane phospholipid domains could provide further controlled modulation of membrane physical and biological properties. EXPERIMENT Calculated Hansen solubility parameters (∂T) and hydrophile:lipophile balances (HLB) were applied to design and synthesize a small family of diblock and triblock TyPS with different hydrophobic blocks and PEG hydrophilic blocks. Self-assembled TyPS/cholesterol nanospheres were prepared in aqueous media via co-precipitation. Cholesterol loading and Langmuir film balance surface pressures of phospholipid monolayers were obtained. TyPS and TyPS/cholesterol nanosphere effects on human dermal cell viability were evaluated by cell culture using poly(ethylene glycol) (PEG) and Poloxamer 188 as controls. FINDINGS Stable TyPS nanospheres incorporated between 1% and 5% cholesterol. Triblock TyPS formed nanosphere with dimensions significantly smaller than diblock TyPS nanospheres. In accord calculated thermodynamic parameters, cholesterol binding increased with increasing TyPS hydrophobicity. TyPS inserted into phospholipid monolayer films in a manner consistent with their thermodynamic properties and TyPS/cholesterol nanospheres delivered cholesterol into the films. Triblock TyPS/cholesterol nanospheres increased human dermal cell viability, which was indicative of potentially beneficial TyPS effects on cell membrane surface properties.
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Affiliation(s)
- Mariana R N Lima
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Kim-Phuong N Le
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Daniel Chakhalian
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Yong Mao
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Joachim Kohn
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - David I Devore
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA; Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA.
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2
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Dahanayake R, Dormidontova EE. Molecular Structure and Co-solvent Distribution in PPO–PEO and Pluronic Micelles. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Rasika Dahanayake
- Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut06269, United States
| | - Elena E. Dormidontova
- Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut06269, United States
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3
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Li S, Dong R, Musteata VE, Kim J, Rangnekar ND, Johnson JR, Marshall BD, Chisca S, Xu J, Hoy S, McCool BA, Nunes SP, Jiang Z, Livingston AG. Hydrophobic polyamide nanofilms provide rapid transport for crude oil separation. Science 2022; 377:1555-1561. [PMID: 36173852 DOI: 10.1126/science.abq0598] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Hydrocarbon separation relies on energy-intensive distillation. Membrane technology can offer an energy-efficient alternative but requires selective differentiation of crude oil molecules with rapid liquid transport. We synthesized multiblock oligomer amines, which comprised a central amine segment with two hydrophobic oligomer blocks, and used them to fabricate hydrophobic polyamide nanofilms by interfacial polymerization from self-assembled vesicles. These polyamide nanofilms provide transport of hydrophobic liquids more than 100 times faster than that of conventional hydrophilic counterparts. In the fractionation of light crude oil, manipulation of the film thickness down to ~10 nanometers achieves permeance one order of magnitude higher than that of current state-of-the-art hydrophobic membranes while retaining comparable size- and class-based separation. This high permeance can markedly reduce plant footprint, which expands the potential for using membranes made of ultrathin nanofilms in crude oil fractionation.
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Affiliation(s)
- Siyao Li
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Ruijiao Dong
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.,Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Valentina-Elena Musteata
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division, Advanced Membranes and Porous Materials Center, Thuwal 23955-6900, Saudi Arabia
| | - Jihoon Kim
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.,Process Design and Research Center, Chemical and Process Technology Division, Korea Research Institute of Chemical Technology, Daejeon 34114, South Korea.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Neel D Rangnekar
- Corporate Strategic Research, ExxonMobil Research and Engineering, Annandale, NJ 08801, USA
| | - J R Johnson
- Corporate Strategic Research, ExxonMobil Research and Engineering, Annandale, NJ 08801, USA
| | - Bennett D Marshall
- Corporate Strategic Research, ExxonMobil Research and Engineering, Annandale, NJ 08801, USA
| | - Stefan Chisca
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division, Advanced Membranes and Porous Materials Center, Thuwal 23955-6900, Saudi Arabia
| | - Jia Xu
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.,Key Laboratory of Marine Chemistry Theory and Technology (Ministry of Education), School of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Scott Hoy
- Corporate Strategic Research, ExxonMobil Research and Engineering, Annandale, NJ 08801, USA
| | - Benjamin A McCool
- Corporate Strategic Research, ExxonMobil Research and Engineering, Annandale, NJ 08801, USA
| | - Suzana P Nunes
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division, Advanced Membranes and Porous Materials Center, Thuwal 23955-6900, Saudi Arabia
| | - Zhiwei Jiang
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Andrew G Livingston
- Barrer Center, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
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4
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Uskoković V, Pejčić A, Koliqi R, Anđelković Z. Polymeric Nanotechnologies for the Treatment of Periodontitis: A Chronological Review. Int J Pharm 2022; 625:122065. [PMID: 35932930 DOI: 10.1016/j.ijpharm.2022.122065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/13/2022] [Accepted: 07/27/2022] [Indexed: 12/01/2022]
Abstract
Periodontitis is a chronic infectious and inflammatory disease of periodontal tissues estimated to affect 70 - 80 % of all adults. At the same time, periodontium, the site of periodontal pathologies, is an extraordinarily complex plexus of soft and hard tissues, the regeneration of which using even the most advanced forms of tissue engineering continues to be a challenge. Nanotechnologies, meanwhile, have provided exquisite tools for producing biomaterials and pharmaceutical formulations capable of elevating the efficacies of standard pharmacotherapies and surgical approaches to whole new levels. A bibliographic analysis provided here demonstrates a continuously increasing research output of studies on the use of nanotechnologies in the management of periodontal disease, even when they are normalized to the total output of studies on periodontitis. The great majority of biomaterials used to tackle periodontitis, including those that pioneered this interesting field, have been polymeric. In this article, a chronological review of polymeric nanotechnologies for the treatment of periodontitis is provided, focusing on the major conceptual innovations since the late 1990s, when the first nanostructures for the treatment of periodontal diseases were fabricated. In the opening sections, the etiology and pathogenesis of periodontitis and the anatomical and histological characteristics of the periodontium are being described, along with the general clinical manifestations of the disease and the standard means of its therapy. The most prospective chemistries in the design of polymers for these applications are also elaborated. It is concluded that the amount of innovation in this field is on the rise, despite the fact that most studies are focused on the refinement of already established paradigms in tissue engineering rather than on the development of revolutionary new concepts.
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Affiliation(s)
- Vuk Uskoković
- TardigradeNano LLC; Department of Mechanical Engineering, San Diego State University.
| | - Ana Pejčić
- Department of Periodontology and Oral Medicine, Clinic of Dental Medicine, Medical Faculty, University of Niš.
| | - Rozafa Koliqi
- Department of Clinical Pharmacy and Biopharmacy, Faculty of Medicine, University of Prishtina "Hasan Prishtina".
| | - Zlatibor Anđelković
- Institute for Histology and Embryology, Faculty of Medicine, University of Priština/Kosovska Mitrovica.
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5
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6
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Lima MRN, Devore DI, Kohn J. Nanosphere size control by varying the ratio of poly(ester amide) block copolymer blends. J Colloid Interface Sci 2022; 623:247-56. [PMID: 35588632 DOI: 10.1016/j.jcis.2022.03.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 01/05/2023]
Abstract
HYPOTHESIS Blending amphiphilic triblock (A-B-A) and diblock (A-B) copolymers comprised of the same hydrophobic tyrosine-derived oligomeric B-block and hydrophilic poly(ethylene glycol) methyl ether (mPEG) A-block can provide highly tunable self-assembled nanosphere particle sizes suitable for biomedical applications. EXPERIMENT Triblock and diblock copolymers were synthesized via carbodiimide chemistry and were characterized by nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC). The amount of free PEG present in the purified copolymers was determined using a standard addition calibration curve and GPC peak deconvolution methods. Nanospheres were prepared by co-precipitation of each copolymer and of copolymer blends over a range of mole ratios. Nanospheres were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM) and % polymer recovery post-preparation. FINDING Precise synthesis control produced triblock and diblock copolymers with narrow molecular weight distributions and minimal residual reactants. Self-assembled nanosphere particle sizes were 33 nm for the triblock and 129 nm for the diblock, and the size of their blends increased continuously as a function of mole ratio within that biomedically relevant range. Addition of unreacted PEG had minimal impact on either triblock or diblock nanosphere particle sizes whereas addition of unreacted oligomeric B-block increased nanosphere sizes.
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7
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Balafouti A, Pispas S. P(
OEGMA‐co‐LMA
) hyperbranched amphiphilic copolymers as self‐assembled nanocarriers. Journal of Polymer Science 2022. [DOI: 10.1002/pol.20220078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Anastasia Balafouti
- Theoretical and Physical Chemistry Institute National Hellenic Research Foundation Athens Greece
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute National Hellenic Research Foundation Athens Greece
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8
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Procházka K, Limpouchová Z, Štěpánek M, Šindelka K, Lísal M. DPD Modelling of the Self- and Co-Assembly of Polymers and Polyelectrolytes in Aqueous Media: Impact on Polymer Science. Polymers (Basel) 2022; 14:polym14030404. [PMID: 35160394 PMCID: PMC8838752 DOI: 10.3390/polym14030404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/04/2023] Open
Abstract
This review article is addressed to a broad community of polymer scientists. We outline and analyse the fundamentals of the dissipative particle dynamics (DPD) simulation method from the point of view of polymer physics and review the articles on polymer systems published in approximately the last two decades, focusing on their impact on macromolecular science. Special attention is devoted to polymer and polyelectrolyte self- and co-assembly and self-organisation and to the problems connected with the implementation of explicit electrostatics in DPD numerical machinery. Critical analysis of the results of a number of successful DPD studies of complex polymer systems published recently documents the importance and suitability of this coarse-grained method for studying polymer systems.
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Affiliation(s)
- Karel Procházka
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43 Prague, Czech Republic; (Z.L.); (M.Š.)
- Correspondence:
| | - Zuzana Limpouchová
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43 Prague, Czech Republic; (Z.L.); (M.Š.)
| | - Miroslav Štěpánek
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43 Prague, Czech Republic; (Z.L.); (M.Š.)
| | - Karel Šindelka
- Department of Molecular and Mesoscopic Modelling, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic; (K.Š.); (M.L.)
| | - Martin Lísal
- Department of Molecular and Mesoscopic Modelling, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic; (K.Š.); (M.L.)
- Department of Physics, Faculty of Science, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632, 400 96 Ústí n. Labem, Czech Republic
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9
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Rincón-lópez J, Ramírez-rodríguez NJ, Luviano AS, Costas M, López-cervantes JL, García-figueroa AA, Domínguez H, Mendoza-cruz R, Guadarrama P, López-morales S, Rojas-aguirre Y. Experimental and theoretical studies of pegylated-β-cyclodextrin: A step forward to understand its tunable self-aggregation abilities. J Drug Deliv Sci Technol 2022; 67:102975. [DOI: 10.1016/j.jddst.2021.102975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Patel HS, Shaikh SJ, Ray D, Aswal VK, Vaidya F, Pathak C, Sharma RK. Formulation, Solubilization, and In Vitro Characterization of Quercetin-Incorporated Mixed Micelles of PEO-PPO-PEO Block Copolymers. Appl Biochem Biotechnol 2021. [PMID: 34611857 DOI: 10.1007/s12010-021-03691-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
Quercetin (QCN) is a plant polyphenol with a variety of medicinal effects. Poor water solubility, on the other hand, restricts its therapeutic effectiveness. The purpose of this study was to develop mixed micellar systems using two biocompatible amphiphilic PEO-PPO-PEO triblock copolymers, Pluronic P123 (EO20-PO70-EO20) and Pluronic F88 (EO104-PO39-EO104), in order to enhance the aqueous solubility and oral bioavailability of QCN drug. The critical micelle concentrations (CMCs) of mixed P123/F88 micellar solutions were investigated using UV-visible spectroscopy with pyrene as a probe. Mixed P123/F88 micelles have low CMCs, indicating that they have a stable micelle structure even when diluted. The solubility of QCN in aqueous mixed P123/F88 micellar solutions at different temperatures was investigated to better understand drug entrapment. The QCN solubility increased with increasing temperature in the mixed P123/F88 micellar system. The QCN-incorporated mixed P123/F88 micelles were prepared using the thin-film hydration method and were well characterized in terms of size and morphology, compatibility, in vitro release and antioxidant profile. In addition, the cell proliferation activity of the mixed micelles was evaluated in the MCF-7 cell line. The QCN-incorporated mixed P123/F88 micelles had a small particle size (< 25 nm) and a negative zeta potential with a spherical shape. The in vitro release behaviour of QCN from a mixed P123/F88 micellar system was slower and more sustained at physiological conditions. The oxidation resistance of QCN-incorporating mixed P123/F88 micelles was shown to be considerably higher than that of pure QCN. An in vitro cell proliferation study revealed that QCN-incorporated mixed micells were effective in inhibiting tumour cell growth. In conclusion, the QCN-incorporated mixed P123/F88 micelle may be a promising approach to increase QCN oral bioavailability, antioxidant activity, and cell viability.
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11
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Simms BL, Ji N, Chandrasiri I, Zia MF, Udemgba CS, Kaur R, Delcamp JH, Flynt A, Tan C, Watkins DL. Physicochemical properties and bio‐interfacial interactions of surface modified
PDLLA‐PAMAM
linear dendritic block copolymers. Journal of Polymer Science 2021. [DOI: 10.1002/pol.20210448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Briana L. Simms
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
| | - Nan Ji
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy University of Mississippi University Oxford Mississippi USA
| | - Indika Chandrasiri
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
| | - Mohammad Farid Zia
- Department of Biological Sciences The University of Southern Mississippi Hattiesburg Mississippi USA
| | - Chinwe S. Udemgba
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
| | - Ravinder Kaur
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
| | - Alex Flynt
- Department of Biological Sciences The University of Southern Mississippi Hattiesburg Mississippi USA
| | - Chalet Tan
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy University of Mississippi University Oxford Mississippi USA
| | - Davita L. Watkins
- Department of Chemistry and Biochemistry University of Mississippi University Oxford Mississippi USA
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12
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Mazumdar S, Chitkara D, Mittal A. Exploration and insights into the cellular internalization and intracellular fate of amphiphilic polymeric nanocarriers. Acta Pharm Sin B 2021; 11:903-924. [PMID: 33996406 PMCID: PMC8105776 DOI: 10.1016/j.apsb.2021.02.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/20/2020] [Accepted: 01/18/2021] [Indexed: 01/01/2023] Open
Abstract
The beneficial or deleterious effects of nanomedicines emerge from their complex interactions with intracellular pathways and their subcellular fate. Moreover, the dynamic nature of plasma membrane accounts for the movement of these nanocarriers within the cell towards different organelles thereby not only influencing their pharmacokinetic and pharmacodynamic properties but also bioavailability, therapeutic efficacy and toxicity. Therefore, an in-depth understanding of underlying parameters controlling nanocarrier endocytosis and intracellular fate is essential. In order to direct nanoparticles towards specific sub-cellular organelles the physicochemical attributes of nanocarriers can be manipulated. These include particle size, shape and surface charge/chemistry. Restricting the particle size of nanocarriers below 200 nm contributes to internalization via clathrin and caveolae mediated pathways. Similarly, a moderate negative surface potential confers endolysosomal escape and targeting towards mitochondria, endoplasmic reticulum (ER) and Golgi. This review aims to provide an insight into these physicochemical attributes of nanocarriers fabricated using amphiphilic graft copolymers affecting cellular internalization. Fundamental principles understood from experimental studies have been extrapolated to draw a general conclusion for the designing of optimized nanoparticulate drug delivery systems and enhanced intracellular uptake via specific endocytic pathway.
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Key Words
- AR, aspect ratio
- Amphiphilic
- CCP, clathrin coated pits
- Cav-1, caveolin-1
- Copolymer
- Cy, cyanine
- DOX, doxorubicin
- ER, endoplasmic reticulum
- FITC, fluorescein isothiocyanate
- HER-2, human epidermal growth factor receptor 2
- IL-2, interleukin
- Internalization
- Intracellular fate
- Nanoparticles
- RBITC, rhodamine B isothiocyanate
- RES, reticuloendothelial system
- Rmax, minimum size threshold value
- Rmin, maximum size threshold value
- SEM, scanning electron microscopy
- SR & LR, short rod and long rod
- TEM, transmission electron microscopy
- mPEG, methoxy poly(ethylene glycol)
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Affiliation(s)
- Samrat Mazumdar
- Department of Pharmacy, Birla Institute of Technology and Science (BITS-PILANI), Pilani, Rajasthan 333031, India
| | - Deepak Chitkara
- Department of Pharmacy, Birla Institute of Technology and Science (BITS-PILANI), Pilani, Rajasthan 333031, India
| | - Anupama Mittal
- Department of Pharmacy, Birla Institute of Technology and Science (BITS-PILANI), Pilani, Rajasthan 333031, India
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Luengo GS, Fameau AL, Léonforte F, Greaves AJ. Surface science of cosmetic substrates, cleansing actives and formulations. Adv Colloid Interface Sci 2021; 290:102383. [PMID: 33690071 DOI: 10.1016/j.cis.2021.102383] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/04/2021] [Accepted: 02/06/2021] [Indexed: 12/22/2022]
Abstract
The development of shampoo and cleansing formulations in cosmetics is at a crossroads due to consumer demands for better performing, more natural products and also the strong commitment of cosmetic companies to improve the sustainability of cosmetic products. In order to go beyond traditional formulations, it is of great importance to clearly establish the science behind cleansing technologies and appreciate the specificity of cleansing biological surfaces such as hair and skin. In this review, we present recent advances in our knowledge of the physicochemical properties of the hair surface from both an experimental and a theoretical point of view. We discuss the opportunities and challenges that newer, sustainable formulations bring compared to petroleum-based ingredients. The inevitable evolution towards more bio-based, eco-friendly ingredients and sustainable formulations requires a complete rethink of many well-known physicochemical principles. The pivotal role of digital sciences and modelling in the understanding and conception of new ingredients and formulations is discussed. We describe recent numerical approaches that take into account the specificities of the hair surface in terms of structuration, different methods that study the adsorption of formulation ingredients and finally the success of new data-driven approaches. We conclude with practical examples on current formulation efforts incorporating bio-surfactants, controlling foaming and searching for new rheological properties.
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Perumal S, Atchudan R, Edison TNJI, Shim JJ, Lee YR. Exfoliation and Noncovalent Functionalization of Graphene Surface with Poly- N-Vinyl-2-Pyrrolidone by In Situ Polymerization. Molecules 2021; 26:molecules26061534. [PMID: 33799693 PMCID: PMC7999643 DOI: 10.3390/molecules26061534] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 11/16/2022] Open
Abstract
Heteroatom functionalization on a graphene surface can endow the physical and structural properties of graphene. Here, a one-step in situ polymerization method was used for the noncovalent functionalization of a graphene surface with poly-N-vinyl-2-pyrrolidone (PNVP) and the exfoliation of graphite into graphene sheets. The obtained graphene/poly-N-vinyl pyrrolidone (GPNVP) composite was thoroughly characterized. The surface morphology of GPNVP was observed using field emission scanning electron microscopy and high-resolution transmission electron microscopy. Raman spectroscopy and X-ray diffraction studies were carried out to check for the exfoliation of graphite into graphene sheets. Thermogravimetric analysis was performed to calculate the amount of PNVP on the graphene surface in the GPNVP composite. The successful formation of the GPNVP composite and functionalization of the graphene surface was confirmed by various studies. The cyclic voltammetry measurement at different scan rates (5–500 mV/s) and electrochemical impedance spectroscopy study of the GPNVP composite were performed in the typical three-electrode system. The GPNVP composite has excellent rate capability with the capacitive property. This study demonstrates the one-pot preparation of exfoliation and functionalization of a graphene surface with the heterocyclic polymer PNVP; the resulting GPNVP composite will be an ideal candidate for various electrochemical applications.
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Deaton TA, Aydin F, Li NK, Chu X, Dutt M, Yingling YG. Dissipative Particle Dynamics Approaches to Modeling the Self-Assembly and Morphology of Neutral and Ionic Block Copolymers in Solution. Foundations of Molecular Modeling and Simulation 2021. [DOI: 10.1007/978-981-33-6639-8_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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16
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Samith VD, Navarro S, Dabirian R. Morphological and Semi-empirical Study of the Pluronic F68/Imogolite/Sudan III Intersurfaces Composite for the Controlled Temperature Release of Hydrophobic Drugs. ACS Omega 2020; 5:20707-20723. [PMID: 32875204 PMCID: PMC7450501 DOI: 10.1021/acsomega.9b02965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
Some PluronicF68 (F68) triblock copolymer properties demonstrate surprising applications in selective drug administration, such as the transportation of hydrophobic anti-inflammatories through epithelial barriers. Nuclear magnetic resonance (1H-NMR) spectroscopy was carried out for micelle precursor dispersions and F68 films modified with a synthetic imogolite (IMO) biocompatible hydrogel. Theoretical calculations and morphological assessment for the process of morphogenesis of dendritic crystallization were performed by molecular docking and atomic force microscopy (AFM) of the Sudan III-IMO-F68 composite, which was more hydrophobic than Sudan III-F68 and carried out the prolonged release of the Sudan III "drug" captured by a water-octanol interface determined by standard absorbance. Surface fusions were measured and compared to the unmodified matrix. However, despite the superior properties of the composite, the critical micelle concentration (CMC) was practically unmodified because solitary IMO strands attached to Sudan III formed Sudan III-IMO. These strands unraveled in a stable manner by expanding like a "spiderweb" in hydrophilic interfaces according to NMR analysis of the hydrogen one H1 polarization of Sudan III and F68 methyl, whose correlation relates hydrophobicity of Sudan III-IMO-F68 with dendrite properties from F68 concentrations. CMC and surface fusions equivalent to F68 surface properties, calculated by differential scanning calorimetry and dynamic Raman spectroscopy, were determined by AFM and high-resolution ellipsometry. Our results show highly specialized pharmacological applications since micelle surfaces expand, triggering maximum deliveries of "Drugs" from its interior to the physiological environment. The implanted sensor prototype determined equilibria reached Sudan III according to temperature (32-50 °C) and time it took to cross the membrane model 1-octanol (48 h). The findings suggest that the targested design of a F68-IMO-"Drug" would function as a microdevice for the prolonged release of hydrophobic drugs. In addition, the said microdevice could regenerate the damaged tissue in the central nervous system or other organs of the body. This is due to the fact that it could perform both tasks simultaneously, given the properties and characteristics acquired by the compatible material depending on the temperature of the physiological environment.
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Affiliation(s)
- Vicente D. Samith
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
- Institute for Medical
and Biological Engineering, Schools of Engineering, Biological Sciences
and Medicine, Pontificia Universidad Católica
de Chile, Santiago 7800003, Chile
| | - Sebastián Navarro
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
| | - Reza Dabirian
- Departamento de
Química, Facultad de Ciencias, Universidad
de Chile, Las Palmeras 3425, Santiago 244355, Chile
- Istituto per la Sintesi
Organica e la Fotoreattività, Consiglio
Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy
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Tiwari S, Kansara V, Bahadur P. Targeting anticancer drugs with pluronic aggregates: Recent updates. Int J Pharm 2020; 586:119544. [DOI: 10.1016/j.ijpharm.2020.119544] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/04/2020] [Accepted: 06/10/2020] [Indexed: 12/20/2022]
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18
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Tsubone TM, Zhang Z, Goyal R, Santacruz C, Martins WK, Kohn J, Baptista MS. Porphyrin-Loaded TyroSpheres for the Intracellular Delivery of Drugs and Photoinduced Oxidant Species. Mol Pharm 2020; 17:2911-2924. [DOI: 10.1021/acs.molpharmaceut.0c00338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tayana Mazin Tsubone
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
| | - Zheng Zhang
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Ritu Goyal
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Carolina Santacruz
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
| | | | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Mauricio S. Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
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19
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Mani S, Cosgrove DJ, Voth GA. Anisotropic Motions of Fibrils Dictated by Their Orientations in the Lamella: A Coarse-Grained Model of a Plant Cell Wall. J Phys Chem B 2020; 124:3527-3539. [DOI: 10.1021/acs.jpcb.0c01697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sriramvignesh Mani
- Department of Chemistry, Chicago Center for Theoretical Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States
| | - Daniel J. Cosgrove
- Department of Biology and Center for Lignocellulose Structure and Formation, Pennsylvania State University, University Park, State College, Pennsylvania 16801, United States
| | - Gregory A. Voth
- Department of Chemistry, Chicago Center for Theoretical Chemistry, James Franck Institute, and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, United States
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20
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Patel A, Lima MRN, Cho HY, Lee KB, Murthy NS, Kohn J. Disassembly of Nanospheres with a PEG Shell upon Adsorption onto PEGylated Substrates. Langmuir 2020; 36:232-241. [PMID: 31825622 DOI: 10.1021/acs.langmuir.9b03042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polymeric nanospheres have the ability to encapsulate drugs and are therefore widely used in drug delivery applications. Structural transformations that affect drug release from nanospheres are governed by the surrounding environment. To understand these effects, we investigated the adsorption behavior of three types of nanospheres onto model surfaces using quartz crystal microbalance with dissipation (QCM-D) and by atomic force microscopy (AFM). Substrates were prepared from polymers with different degrees of PEGylation (0, 1, and 15%). Nanospheres were prepared via self-assembly of block copolymers. Tyrosine-derived nanospheres are A-B-A triblock copolymers with methoxy poly(ethylene glycol) (PEG) as the A-blocks and an alternating copolymer of desaminotyrosyl-tyrosine octyl ester and suberic acid oligo(DTO-SA) as the B-block. On non-PEGylated substrates, these nanospheres assembled into a close-packed structure; on PEGylated substrates, the adsorbed nanospheres formed a continuous film, thinner than the size of the nanospheres suggesting unraveling of the PEG corona and disassembly of the nanospheres. Also, the adsorption was concentration-dependent, the final thickness being attained at exponentially longer times at lower concentrations. Such substrate- and concentration-dependent behavior was not observed with Pluronic F-127 and PEG-poly(caprolactone) (PCL) nanospheres. Since the essential difference among the three nanospheres is the composition of the core, we conclude that the core influences the adsorption characteristics of the nanospheres as a consequence of their disassembly upon adsorption. These results are expected to be useful in designing nanospheres for their efficient transport across vascular barriers and for delivering drugs to their targets.
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21
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Bechnak L, Patra D. Salt and bile salt accelerate self-assembly behavior of poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) probed by curcumin fluorescence. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123955] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Giglio CS, Osazuwa O, Kontopoulou M, Docoslis A. Achieving high yield of graphene nanoplatelets in poloxamer-assisted ultrasonication of graphite in water. J Colloid Interface Sci 2019; 539:107-117. [PMID: 30576986 DOI: 10.1016/j.jcis.2018.12.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/07/2018] [Accepted: 12/08/2018] [Indexed: 12/07/2022]
Abstract
The role of surfactant (Pluronic® F 127) concentration on the yield and morphological characteristics of graphene nanoplatelets (GNPs) produced from the sonication of aqueous graphene suspensions is investigated in this work. By employing a wide surfactant concentration range (0.1-15 wt%) and sonication power densities up to 420 W L-1 we identify two graphene exfoliation regimes: the first occurs at low sonication power densities (<340 W L-1) and produces GNPs with sizes 200-300 nm, aspect ratios between 70 and 100, and concentrations up 1 mg mL-1. In that regime, the surfactant concentration has no effect on the exfoliation results. In the second exfoliation regime (>340 W L-1), surfactant concentrations greater than 10 wt% produce dramatic increases in GNP yields, namely up to 3.0 mg mL-1, and overall larger GNPs (350-500 nm) with smaller aspect ratios (5-60). We attribute these changes to the onset of a more energy intensive mechanism, termed cleavage. Cleavage involves the separation of graphite clusters in sub-bulk multi-layered graphene entities, as opposed to exfoliation, which involves the separation of individual or few-layer GNPs. Choosing an exfoliation regime by tuning simple process parameters enables control over the yield, size and morphology of the produced GNPs.
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Affiliation(s)
- Cameron S Giglio
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Osayuki Osazuwa
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Marianna Kontopoulou
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Aristides Docoslis
- Department of Chemical Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.
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23
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Pasquino R, Droghetti H, Carbone P, Mirzaagha S, Grizzuti N, Marchisio D. An experimental rheological phase diagram of a tri-block co-polymer in water validated against dissipative particle dynamics simulations. Soft Matter 2019; 15:1396-1404. [PMID: 30633291 DOI: 10.1039/c8sm01959b] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Aqueous solutions of tri-block co-polymer surfactants are able to aggregate into a rich variety of microstructures, which can exhibit different rheological behaviors. In this work, we study the diversity of structures detected in aqueous solutions of Pluronic L64 at various concentrations and temperatures by experimental rheometry and dissipative particle dynamics (DPD) simulations. Mixtures of Pluronic L64 in water (ranging from 0 to 90 wt% Pluronic L64) have been studied in both linear and non-linear regimes by oscillatory and steady shear flow. The measurements allowed for the determination of a complete rheological phase diagram of the Pluronic L64-water system. The linear and non-linear regimes have been compared to equilibrium and non-equilibrium DPD bulk simulations of similar systems obtained by using the software LAMMPS. The molecular results are capable of reproducing the equilibrium structures, which are in complete agreement with the ones predicted through experimental linear rheology. The simulations also depict micellar microstructures after long time periods when a strong flow is applied. These structures are directly compared, from a qualitative point of view, with the corresponding experimental results and differences between the equilibrium and non-equilibrium phase diagrams are highlighted, proving the capability of detecting morphological changes caused by deformation in both experiments and DPD simulations. The effect of temperature on the rheology of the systems has been eventually investigated and compared with the already existing non-rheological phase diagram.
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Affiliation(s)
- Rossana Pasquino
- Department of Chemical, Materials and Industrial Production, Università degli Studi di Napoli Federico II, P.le Tecchio 80, 80125 Napoli, Italy.
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24
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Xu Y, Cao H, Xue Y, Li B, Cai W. Liquid-Phase Exfoliation of Graphene: An Overview on Exfoliation Media, Techniques, and Challenges. Nanomaterials (Basel) 2018; 8:E942. [PMID: 30445778 DOI: 10.3390/nano8110942] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/08/2018] [Accepted: 11/13/2018] [Indexed: 01/07/2023]
Abstract
Graphene, a two-dimensional (2D) carbon nanomaterial, has attracted worldwide attention owing to its fascinating properties. One of critical bottlenecks on some important classes of applications, such as printed electronics, conductive coatings, and composite fillers, is the lack of industrial-scale methods to produce high-quality graphene in the form of liquid suspensions, inks, or dispersions. Since 2008, when liquid-phase exfoliation (LPE) of graphene via sonication was initiated, huge progress has been made in the past decade. This review highlights the latest progress on the successful preparation of graphene in various media, including organic solvents, ionic liquids, water/polymer or surfactant solutions, and some other green dispersants. The techniques of LPE, namely sonication, high-shear mixing, and microfluidization are reviewed subsequently. Moreover, several typical devices of high-shear mixing and exfoliation mechanisms are introduced in detail. Finally, we give perspectives on future research directions for the development of green exfoliation media and efficient techniques for producing high-quality graphene. This systematic exploratory study of LPE will potentially pave the way for the scalable production of graphene, which can be also applied to produce other 2D layered materials, such as BN, MoS2, WS2, etc.
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25
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Droghetti H, Pagonabarraga I, Carbone P, Asinari P, Marchisio D. Dissipative particle dynamics simulations of tri-block co-polymer and water: Phase diagram validation and microstructure identification. J Chem Phys 2018; 149:184903. [DOI: 10.1063/1.5049641] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hermes Droghetti
- Department of Applied Science and Technology, Institute of Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Ignacio Pagonabarraga
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, Spain
- CECAM Centre Européen de Calcul Atomique et Moléculaire, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Paola Carbone
- School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Pietro Asinari
- Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Daniele Marchisio
- Department of Applied Science and Technology, Institute of Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
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26
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Gholizadeh R, Wang Y. Molecular dynamics simulation of the aggregation phenomenon in the late stages of silica materials preparation. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.03.045] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Murthy NS, Zhang Z, Borsadia S, Kohn J. Nanospheres with a smectic hydrophobic core and an amorphous PEG hydrophilic shell: structural changes and implications for drug delivery. Soft Matter 2018; 14:1327-1335. [PMID: 29372231 PMCID: PMC5929128 DOI: 10.1039/c7sm02472j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The structure of nanospheres with a crystalline core and an amorphous diffuse shell was investigated by small-angle neutron scattering (SANS), small-, medium-, and wide-angle X-ray scattering (SAXS, MAXS and WAXS), and differential scanning calorimetry (DSC). Nanospheres, 28 to 35 nm in diameter, were prepared from a triblock copolymer with poly(ethylene glycol) (PEG) hydrophilic end-blocks and oligomers of alternating desaminotyrosyl-tyrosine octyl ester (DTO) and suberic acid (SA) as the central hydrophobic block. In the lyophilized nanospheres, the diffraction patterns show that the PEG shell is ∼10 nm in thickness and crystalline, and the hydrophobic core is ∼10 nm in diameter with a smectic liquid crystalline texture. In aqueous dispersions, the hydrated PEG forms an amorphous shell, but the crystalline phase in the core persists at concentrations down to 1 mg ml-1 as evidenced by the sharp MAXS diffraction peak at a d-spacing of 24.4 Å and a melting endotherm at 40 °C. As the dispersion is diluted (<1 mg ml-1), the core becomes less ordered, and its diameter decreases by 50% even though the overall size of the nanosphere remains essentially unchanged. It is likely that below a critical concentration, intermixing of hydrophobic segments with the PEG segments reduces the size and the crystallinity of the core. At these concentrations, the PEG corona forms a eutectic with water. The mechanisms by which the concentration of the dispersion influences the structure of the nanospheres, and consequently their drug-release characteristics, are discussed.
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Affiliation(s)
- N Sanjeeva Murthy
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
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28
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Wang H, Tang X, Eike DM, Larson RG, Koenig PH. Scission Free Energies for Wormlike Surfactant Micelles: Development of a Simulation Protocol, Application, and Validation for Personal Care Formulations. Langmuir 2018; 34:1564-1573. [PMID: 29244513 DOI: 10.1021/acs.langmuir.7b03552] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present a scheme to calculate wormlike micelle scission free energies from a potential of mean force (PMF) derived from a weighted histogram analysis method (WHAM) applied to coarse grained dissipative particle dynamics (DPD) simulations. In contrast to previous related work, we use a specially chosen external potential based on a reaction coordinate that reversibly drives surfactants out of the nascent scission location. For the application to a model body wash formulation, we predict how addition of NaCl and small molecules such as perfume raw materials (PRMs) affect scission energies. The results show qualitative agreement and correct trends compared to recently determined scission energies for the same system; however, a more rigorous parametrization of the underlying DPD potential is required for quantitative agreement.
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Affiliation(s)
- Huan Wang
- University of Cincinnati Simulation Center , 2728 Vine Street, Cincinnati, Ohio 45220, United States
| | - Xueming Tang
- Department of Chemical Engineering, 2800 Plymouth Road, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - David M Eike
- Computational Chemistry, Modeling and Simulation, The Procter & Gamble Company , 8611 Beckett Road, West Chester, Ohio 45069, United States
| | - Ronald G Larson
- Department of Chemical Engineering, 2800 Plymouth Road, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Peter H Koenig
- Computational Chemistry, Modeling and Simulation, The Procter & Gamble Company , 8611 Beckett Road, West Chester, Ohio 45069, United States
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Li B, Zhang L, Zhang Z, Gao R, Li H, Dong Z, Wang Q, Zhou Q, Wang Y. Physiologically stable F127-GO supramolecular hydrogel with sustained drug release characteristic for chemotherapy and photothermal therapy. RSC Adv 2018; 8:1693-1699. [PMID: 35540894 PMCID: PMC9077132 DOI: 10.1039/c7ra12099k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/20/2017] [Indexed: 01/13/2023] Open
Abstract
The F127-GO-DOX supramolecular hydrogel system with sustained drug release characteristic for chemotherapy and photothermal therapy.
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Affiliation(s)
- Bingxia Li
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Luna Zhang
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Zichen Zhang
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Ruoqing Gao
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Hongmei Li
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Zhipeng Dong
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Qiyan Wang
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Qingfa Zhou
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Yue Wang
- Key Laboratory of Biomedical Functional Materials
- School of Sciences
- China Pharmaceutical University
- Nanjing 211198
- China
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30
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Szutkowski K, Kołodziejska Ż, Pietralik Z, Zhukov I, Skrzypczak A, Materna K, Kozak M. Clear distinction between CAC and CMC revealed by high-resolution NMR diffusometry for a series of bis-imidazolium gemini surfactants in aqueous solutions. RSC Adv 2018; 8:38470-38482. [PMID: 35559094 PMCID: PMC9090568 DOI: 10.1039/c8ra07081d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/01/2018] [Indexed: 01/15/2023] Open
Abstract
The aggregation behavior in the transition region was studied for a series of dicationic surfactants 3,3′-[α,ω-(dioxaalkane)]bis(1-dodecylimidazolium)dichlorides with varied spacer length from two to twelve carbon atoms. We employed Nuclear Magnetic Resonance diffusometry and Bayesian DOSY analysis to obtain the aggregate size distribution in the transition region. The critical concentrations CC were independently obtained from surface tension, electric conductivity, UV-Vis and NMR methods. The micelle aggregation numbers were estimated from the self-diffusion coefficients and were independently confirmed using steady-state fluorescence quenching. The morphology of the aggregates was characterized by small-angle scattering of synchrotron radiation and molecular dynamics simulations. The obtained CC values are identified as critical aggregation concentrations CAC. A broad transition region was observed, and stable micelles were obtained at much higher concentrations than CAC. The accurate CMC values could not be identified for the systems in the study. We indicated that the distribution of aggregate size becomes small and the system becomes homogeneous at much larger concentrations than CAC (typically 15–20 mM). The existence of a slow exchange between two environments, an aggregate and aqueous environment, was confirmed by 1H NMR and 2D HSQC NMR spectroscopy. The aggregation behavior in the transition region was studied for a series of dicationic surfactants 3,3′-[α,ω-(dioxaalkane)]bis(1-dodecylimidazolium)dichlorides with varied spacer length from two to twelve carbon atoms.![]()
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Affiliation(s)
- Kosma Szutkowski
- NanoBioMedical Centre
- Adam Mickiewicz University in Poznań
- PL61614 Poznań
- Poland
| | - Żaneta Kołodziejska
- Department of Macromolecular Physics
- Faculty of Physics
- Adam Mickiewicz University in Poznań
- PL61614 Poznań
- Poland
| | - Zuzanna Pietralik
- Department of Macromolecular Physics
- Faculty of Physics
- Adam Mickiewicz University in Poznań
- PL61614 Poznań
- Poland
| | - Igor Zhukov
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- PL02106 Warsaw
- Poland
| | - Andrzej Skrzypczak
- Institute of Chemical Technology and Engineering
- Faculty of Chemical Technology
- Poznań University of Technology
- PL60965 Poznań
- Poland
| | - Katarzyna Materna
- Institute of Chemical Technology and Engineering
- Faculty of Chemical Technology
- Poznań University of Technology
- PL60965 Poznań
- Poland
| | - Maciej Kozak
- Department of Macromolecular Physics
- Faculty of Physics
- Adam Mickiewicz University in Poznań
- PL61614 Poznań
- Poland
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