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Bús C, Kocsis M, Ágoston Á, Kukovecz Á, Kónya Z, Sipos P. Application of Alcohols to Inhibit the Formation of Ca(II) Dodecyl Sulfate Precipitate in Aqueous Solutions. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1806. [PMID: 38673163 PMCID: PMC11051115 DOI: 10.3390/ma17081806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024]
Abstract
The presence of alkaline earth cations, in particular, Ca2+ and Mg2+ ions in brine, causes undesired effects in solutions containing anionic surfactants because of precipitate formation. In the present study, an anionic surfactant, sodium dodecyl sulfate (SDS), was investigated, focusing on the determination of various properties (surface tension, critical micelle concentration, micelle size, turbidity) in the presence of alcohols and, in particular, the inhibition of the precipitation of SDS with calcium ions. The calcium ions were added to the surfactant in increasing concentrations (3.0-10.0 g/L), and short-carbon-chain alcohols (methanol, ethanol, n-propanol and n-butanol) were used to shift the onset of precipitate formation. The critical micelle concentration (CMC) of SDS in the presence of alcohols was also determined. It was established that among these alcohols, methanol and ethanol did not exert significant effects on the solubility of the Ca(DS)2 precipitate, while n-propanol and n-butanol were found to be much more efficient inhibitors. In addition, all the alcohols in the applied concentration range (up to 20 V/V%) were found to decrease the critical micelle concentration of SDS.
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Affiliation(s)
- Csaba Bús
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm Square 7-8, 6720 Szeged, Hungary; (C.B.); (M.K.)
| | - Marianna Kocsis
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm Square 7-8, 6720 Szeged, Hungary; (C.B.); (M.K.)
| | - Áron Ágoston
- Department of Physical Chemistry and Material Science, University of Szeged, Rerrich Béla Square 1, 6720 Szeged, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Square 1, 6720 Szeged, Hungary (Z.K.)
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Square 1, 6720 Szeged, Hungary (Z.K.)
| | - Pál Sipos
- Department of Molecular and Analytical Chemistry, University of Szeged, Dóm Square 7-8, 6720 Szeged, Hungary; (C.B.); (M.K.)
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2
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Miyazaki R, Suzuki M, Nakajima N, Hamada M, Koyama Y. Synthesis and self-assembly behaviors of α-galactosyl ceramide (1,2)-polysaccharide analogue. Int J Biol Macromol 2024; 263:130276. [PMID: 38373566 DOI: 10.1016/j.ijbiomac.2024.130276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
α-Galactosyl ceramide (GalCer) as a glycolipid has been long used as a standard reference for positive control in natural killer T cell studies. The (1,2)-disaccharide analogue of GalCer attracts a special attention in the study of lysosomal glycolipid processing. This paper describes the synthesis and self-assembly behaviors of GalCer 1,2-polysaccharide analogue (PolyGalCer), having considered the 1,2-disaccharide analogue as a structural motif. The synthesis of PolyGalCer is performed via one-pot glycosidation technique of 1,2-linked oligogalactan exploiting chain polymerization of galactose-based cyclic sulfite as a monomer initiated with ceramide-based alcoholic aglycon. Through the concentration dependence of PolyGalCer solutions in water or in MeOH on the turbidity, it is found that PolyGalCer forms associates in both media. From the intersection points, the critical aggregation concentration (CAC) values of PolyGalCer in water and MeOH were estimated. To know the self-assembly and the thermal transition behaviors, we performed dynamic light scattering (DLS) analysis of the associates comprising PolyGalCer in water. The transmission electron microscopy observations of the aqueous sample solution indicate that the solution of PolyGalCer includes large spherical associates. The results clarify that the 1,2-galactan moiety of PolyGalCer skeleton contributes on the kinetic inhibition of large associate formation and the metamorphosis of associates.
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Affiliation(s)
- Ryo Miyazaki
- Department of Pharmaceutical Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Misaki Suzuki
- Department of Pharmaceutical Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Noriyuki Nakajima
- Department of Pharmaceutical Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan; Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Masahiro Hamada
- Department of Pharmaceutical Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan; Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan; Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
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3
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Allam T, Balderston DE, Chahal MK, Hilton KLF, Hind CK, Keers OB, Lilley RJ, Manwani C, Overton A, Popoola PIA, Thompson LR, White LJ, Hiscock JR. Tools to enable the study and translation of supramolecular amphiphiles. Chem Soc Rev 2023; 52:6892-6917. [PMID: 37753825 DOI: 10.1039/d3cs00480e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
This tutorial review focuses on providing a summary of the key techniques used for the characterisation of supramolecular amphiphiles and their self-assembled aggregates; from the understanding of low-level molecular interactions, to materials analysis, use of data to support computer-aided molecular design and finally, the translation of this class of compounds for real world application, specifically within the clinical setting. We highlight the common methodologies used for the study of traditional amphiphiles and build to provide specific examples that enable the study of specialist supramolecular systems. This includes the use of nuclear magnetic resonance spectroscopy, mass spectrometry, X-ray scattering techniques (small- and wide-angle X-ray scattering and single crystal X-ray diffraction), critical aggregation (or micelle) concentration determination methodologies, machine learning, and various microscopy techniques. Furthermore, this review provides guidance for working with supramolecular amphiphiles in in vitro and in vivo settings, as well as the use of accessible software programs, to facilitate screening and selection of druggable molecules. Each section provides: a methodology overview - information that may be derived from the use of the methodology described; a case study - examples for the application of these methodologies; and a summary section - providing methodology specific benefits, limitations and future applications.
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Affiliation(s)
- Thomas Allam
- School of Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK
| | - Dominick E Balderston
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Mandeep K Chahal
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Kira L F Hilton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Charlotte K Hind
- Research and Evaluation, UKHSA, Porton Down, Salisbury SP4 0JG, UK
| | - Olivia B Keers
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Rebecca J Lilley
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Chandni Manwani
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Alix Overton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Precious I A Popoola
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa R Thompson
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa J White
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Jennifer R Hiscock
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
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Verma C, Hussain CM, Quraishi MA, Alfantazi A. Green surfactants for corrosion control: Design, performance and applications. Adv Colloid Interface Sci 2023; 311:102822. [PMID: 36442322 DOI: 10.1016/j.cis.2022.102822] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/17/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022]
Abstract
Surfactants enjoy an augmented share of hydrophilicity and hydrophobicity and are well-known for their anticorrosive potential. The use of non-toxic surfactants is gaining growing interest because of the scaling demands of green chemistry. Green surfactants have successfully replaced traditional toxic surfactant-based corrosion inhibitors. Recently, many reports described the corrosion inhibition potential of green surfactants. The present article aims to describe the recent advancements in using green surfactants in corrosion mitigation. They create a charge transfer barrier through their adsorption at the interface of the metal and the environment. Their adsorption is well explained by the Langmuir adsorption isotherm. In the adsorbed layer, their hydrophilic polar heads orient toward the metal side and their hydrophobic tails orient toward the solution side. They block the active sites and retard the anodic and cathodic and act as mixed-type inhibitors. Their adsorption and bonding nature are fruitfully supported by surface analyses. They can form mono- or multilayers depending upon the nature of the metal, electrolyte and experimental conditions. The challenges and opportunities of using green surfactants as corrosion inhibitors have also been described.
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Affiliation(s)
- Chandrabhan Verma
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA.
| | - M A Quraishi
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Akram Alfantazi
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, United Arab Emirates
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5
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Li G, Shang C, Li Q, Chen L, Yue Z, Ren L, Yang J, Zhang J, Wang W. Combined Shikonin-Loaded MPEG-PCL Micelles Inhibits Effective Transition of Endothelial-to-Mesenchymal Cells. Int J Nanomedicine 2022; 17:4497-4508. [PMID: 36186533 PMCID: PMC9519018 DOI: 10.2147/ijn.s374895] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Shikonin is well known for its anti-inflammatory activity in cardiovascular diseases. However, the application of shikonin is limited by its low water solubility and poor bioavailability. Methoxy poly (ethylene glycol)-b-poly (ε-caprolactone) (MPEG-PCL) is considered a promising delivery system for hydrophobic drugs. Therefore, in this study, we prepared shikonin-loaded MPEG-PCL micelles and investigated their effect on endothelial-to-mesenchymal transition (EndMT) induced by inflammatory cytokines. Methods Shikonin was encapsulated in MPEG-PCL micelles using an anti-solvent method and the physiochemical characteristics of the micelles (particle size, zeta potential, morphology, critical micelle concentration (CMC), drug loading and encapsulation efficiency) were investigated. Cellular uptake of micelles in human umbilical vein endothelial cells (HUVECs) was evaluated using fluorescence microscopy. In vitro EndMT inhibition was explored in HUVECs by quantitative real-time PCR analysis. Results The average particle size of shikonin-loaded MPEG-PCL micelles was 54.57±0.13 nm and 60 nm determined by dynamic light scattering and transmission electron microscopy, respectively. The zeta potential was -6.23±0.02 mV. The CMC of the micelles was 6.31×10-7mol/L. The drug loading and encapsulation efficiency were 0.88±0.08% and 43.08±3.77%, respectively. The MPEG-PCL micelles significantly improved the cellular uptake of cargo with low water solubility. Real-time PCR analysis showed that co-treatment with TNF-α and IL-1β successfully induced EndMT in HUVECs, whereas this process was significantly inhibited by shikonin and shikonin-loaded MPEG-PCL micelles, with greater inhibition mediated by the shikonin-loaded MPEG-PCL micelles. Conclusion Shikonin-loaded MPEG-PCL micelles significantly improved the EndMT-inhibiting effect of the free shikonin. MPEG-PCL is suitable for use more generally as a lipophilic drug carrier.
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Affiliation(s)
- Guanglin Li
- Department of Medical Laboratory Animal Science, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Chenxu Shang
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Qingqing Li
- School of Pharmacy, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Lifang Chen
- Department of Medical Laboratory Animal Science, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Zejun Yue
- Department of Medical Laboratory Animal Science, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Lingxuan Ren
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Jianjun Yang
- Department of Pharmacology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Jiye Zhang
- School of Pharmacy, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
| | - Weirong Wang
- Department of Medical Laboratory Animal Science, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, People’s Republic of China
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6
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Rutkauskaite A, White LJ, Hilton KLF, Picci G, Croucher L, Caltagirone C, Hiscock JR. Supramolecular self-associating amphiphiles: determination of molecular self-association properties and calculation of critical micelle concentration using a high-throughput, optical density based methodology. Org Biomol Chem 2022; 20:5999-6006. [PMID: 35147630 DOI: 10.1039/d2ob00066k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Supramolecular self-associating amphiphiles are a class of amphiphilic salt, the anionic component of which is 'frustrated' in nature, meaning multiple hydrogen bonding modes can be accessed simultaneously. Here we derive critical micelle concentration values for four supramolecular self-associating amphiphiles using the standard pendant drop approach and present a new high-throughput, optical density measurement based methodology, to enable the estimation of critical micelle concentrations over multiple temperatures. In addition, we characterise the low-level hydrogen bonded self-association events in the solid state, through single crystal X-ray diffraction, and in polar organic DMSO-d6 solutions using a combination of 1H NMR techniques. Moving into aqueous ethanol solutions (EtOH/H2O or EtOH/D2O (1 : 19 v/v)), we also show these amphiphilic compounds to form higher-order self-associated species through a combination of 1H NMR, dynamic light scattering and zeta potential studies.
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Affiliation(s)
| | - Lisa J White
- School of Chemistry and Forensics, University of Kent, Canterbury, Kent, CT2 7NH, UK.
| | - Kira L F Hilton
- School of Chemistry and Forensics, University of Kent, Canterbury, Kent, CT2 7NH, UK.
| | - Giacomo Picci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Lorraine Croucher
- BMG Labtech, 8 Bell Business Park, Aylesbury, Bucks, HP19 8JR, England, UK
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, SS 554 Bivio per Sestu, 09042 Monserrato, CA, Italy.
| | - Jennifer R Hiscock
- School of Chemistry and Forensics, University of Kent, Canterbury, Kent, CT2 7NH, UK.
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7
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psma-targeted NIR probes for image-guided detection of prostate cancer. Colloids Surf B Biointerfaces 2022; 218:112734. [DOI: 10.1016/j.colsurfb.2022.112734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/14/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022]
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8
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Padhy RK, Sahu S. Oxidation of iminodiethanol by Ce (IV) in microheterogeneous system: a comprehensive kinetic analysis. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2026783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ranjan Kumar Padhy
- Department of Chemistry, National Institute of Science & Technology, Golanthara, Berhampur, Orissa, India
| | - Sarita Sahu
- Department of Chemistry, National Institute of Science & Technology, Golanthara, Berhampur, Orissa, India
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9
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Chowdhury S, Shrivastava S, Kakati A, Sangwai JS. Comprehensive Review on the Role of Surfactants in the Chemical Enhanced Oil Recovery Process. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03301] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Satyajit Chowdhury
- Gas Hydrate and Flow Assurance Laboratory, Petroleum Engineering Program, Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
- Assam Energy Institute, A Centre of Rajiv Gandhi Institute of Petroleum Technology, Sivasagar, Assam 785697, India
| | - Saket Shrivastava
- Department of Petroleum Engineering and Earth Sciences, University of Petroleum and Energy Studies, Dehradun 248001, India
| | - Abhijit Kakati
- Reservoir Rock Fluid Interaction Laboratory, Department of Chemical Engineering, Indian Institute of Technology Guwahati, Amingaon, Guwahati 781039, Assam
| | - Jitendra S. Sangwai
- Gas Hydrate and Flow Assurance Laboratory, Petroleum Engineering Program, Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
- Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
- Center of Excellence on Subsurface Mechanics and Geo-Energy, Indian Institute of Technology Madras, Chennai 600 036, India
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10
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Zhu Q. Optical Characteristics and Applications of AIE Racemic C6-Unsubstituted Tetrahydropyrimidines. Front Chem 2021; 9:800177. [PMID: 34900949 PMCID: PMC8664540 DOI: 10.3389/fchem.2021.800177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/02/2021] [Indexed: 11/13/2022] Open
Abstract
Racemic C6-unsubstituted tetrahydropyrimidines (THPs) are the products of an efficient five-component reaction that we developed. THPs show strong AIE characteristics, that is, completely no fluorescence in different solvents but strong emission with fluorescence quantum yields (Φ F) up to 100% upon aggregation. However, the Φ F values of their pure enantiomers are lower than 46%. Unlike common AIE compounds with crowded aryl rotors on a π-bond or on an aryl ring, THPs have three completely non-crowded aryl rotors on a non-aromatic chiral central ring (tetrahydropyrimidine). In this mini review, we first discuss the AIE characteristics of THPs and the influences of molecular structures on their molecular packing modes and optical properties, and then present their applications and forecast the development of other racemic AIE compounds.
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Affiliation(s)
- Qiuhua Zhu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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11
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Chen J, Zhang Y, Zhao L, Zhang Y, Chen L, Ma M, Du X, Meng Z, Li C, Meng Q. Supramolecular Drug Delivery System from Macrocycle-Based Self-Assembled Amphiphiles for Effective Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53564-53573. [PMID: 34726381 DOI: 10.1021/acsami.1c14385] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Intelligent drug delivery systems (DDSs) that can improve therapeutic outcomes of antitumor agents and decrease their side effects are urgently needed to satisfy special requirements of treatment of malignant tumors in clinics. Here, the fabrication of supramolecular self-assembled amphiphiles based on the host-guest recognition between a cationic water-soluble pillar[6]arene (WP6A) host and a sodium decanesulfonate guest (G) is reported. The chemotherapeutic agent doxorubicin hydrochloride (DOX) can be encapsulated into the formed vesicle (G/WP6A) to construct supramolecular DDS (DOX@G/WP6A). WP6A affords strong affinities to G to avoid undesirable off-target leakage during delivery. Nanoscaled DOX@G/WP6A is capable of preferentially accumulating in tumor tissue via enhanced permeability and retention (EPR) effect. After internalization by tumor cells, the abundant adenosine triphosphate (ATP) binds competitively with WP6A to trigger the disintegration of self-assembled vesicles with the ensuing release of DOX. In vitro and in vivo research confirmed that DOX@G/WP6A is not only able to promote antitumor efficacy but also reduce DOX-related systemic toxicity. The above favorable findings are ascribed to the formation of ternary self-assembly, which profits from the combination of the factors of the EPR effect and the ATP-triggered release.
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Affiliation(s)
- Junyi Chen
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Yadan Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Liang Zhao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Yahan Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Longming Chen
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Mengke Ma
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Xinbei Du
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Zhao Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Chunju Li
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Qingbin Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
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12
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Zhang C, Dong X, Ong SY, Yao SQ. Live-Cell Imaging of Survivin mRNA by Using a Dual-Color Surface-Cross-Linked Nanoquencher. Anal Chem 2021; 93:12081-12089. [PMID: 34436865 DOI: 10.1021/acs.analchem.1c02385] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Precise detection of cancer-related mRNAs can significantly benefit the early diagnosis and potential therapy of cancers. Herein, we report organic dark quencher-encapsulated surface-cross-linked micelles (qSCMs) as a new sort of nanoquencher for construction of potential multiple-color fluorescence imaging nanosensors. Such nanoquenchers featured simple preparation (one-pot), broad-spectrum quenching (450-800 nm), high quenching efficiency (>94%), good stability, negligible cargo leakage, facile covalent surface modification, and finally excellent modularity. As a proof-of-concept demonstration, a mRNA-detecting qSCM nanosensor was generated, capable of simultaneous live-cell imaging of endogenous actin mRNA (a house-keeping gene) and cancer-related survivin mRNA. This nanosensor was found to be GSH- and DNase I-resistant, and with actin mRNA as an intrinsic reference, it was used to image the precise survivin mRNA expression across different mammalian cells through convenient normalization of the signal readouts. Moreover, the nanosensor was further used to quantitatively image the downregulation of endogenous survivin mRNA in HeLa cells upon treatment of YM155 (an imidazolium bioactive compound known to suppresses endogenous survivin mRNA expression). These results clearly demonstrated the promising application of these qSCMs as new nanoquenchers in potential multicolor imaging of various endogenous biomarkers.
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Affiliation(s)
- Changyu Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiao Dong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Sing Yee Ong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.,National University of Singapore Graduate School, Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, University Hall, Tan Chin Tuan Wing, 21 Lower Kent Ridge Road, No. 04-02, Singapore 119077, Singapore
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.,National University of Singapore Graduate School, Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, University Hall, Tan Chin Tuan Wing, 21 Lower Kent Ridge Road, No. 04-02, Singapore 119077, Singapore
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13
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Britton E, Ansell RJ, Howard MJ, Hardie MJ. Self-Assembly and Host-Guest Interactions of Pd 3L 2 Metallo-cryptophanes with Photoisomerizable Ligands. Inorg Chem 2021; 60:12912-12923. [PMID: 34370947 DOI: 10.1021/acs.inorgchem.1c01297] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
New photoswitchable pyridyl-azo-phenyl-decorated tripodal host ligands (Laz) that belong to the cyclotriveratrylene family have been synthesized, and their photoswitching behavior and crystal structures determined. The latter includes a remarkable 7-fold Borromean-weave entanglement of π-π stacked layers. Trigonal bipyramidal {[Pd(en)]3(Laz)2}6+ metallo-cryptophanes (en = ethylenediamine) were formed from these and a previously known pyridyl-azo-phenyl-decorated tripodal host ligand. These coordination cages dissociate at low concentrations and are less robust to photoswitching of the Laz ligands than were previously reported Ir(III)-linked metallo-cryptophanes with similar ligands, reflecting the greater lability of the Pd-N bonds. The {[Pd(en)]3(Laz)2}6+ cages all act as hosts, binding octyl sulfate anions, or N-[2-(dimethylamino)ethyl]-1,8-naphthalimide in a dimethyl sulfoxide solution.
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Affiliation(s)
- Edward Britton
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Richard J Ansell
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Mark J Howard
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Michaele J Hardie
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
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14
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Miyazaki R, Nargis M, Ihsan AB, Nakajima N, Hamada M, Koyama Y. Effects of Glycon and Temperature on Self-Assembly Behaviors of α-Galactosyl Ceramide in Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7936-7944. [PMID: 34161093 DOI: 10.1021/acs.langmuir.1c00545] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
α-Galactosyl ceramide (GalCer) is an anticancer glycolipid consisting of d-galactose and phytosphingosine-based ceramide. Although the amphiphilic structure of GalCer is expected to form self-associates in water, the self-assembly behaviors of GalCer and its derivatives have not been systematically investigated at this moment in spite of its great importance. The evaluation of morphologies and properties of the associates should open new insights into glycolipid chemistry such as the application of GalCer derivatives to a nanocarrier and the elucidation of the detailed pharmacological mechanism of GalCer. Herein, we show the synthesis of the aglycon fragment (Aglycon) of GalCer and the self-assembly behaviors of both GalCer and Aglycon in water. The critical aggregation concentrations of Aglycon and GalCer were determined using UV-vis spectral measurements at various concentrations. The transmission electron microscopy observations of the aqueous sample solutions indicated that the solution of GalCer includes vesicles, while that of Aglycon comprises giant micelles in the absence of vesicles. The vesicle formation in the solution of GalCer was also confirmed by Triton X-100-triggered dye-release experiments. To reveal the effects of glycon on the self-assembly behaviors in detail, we performed the measurements of dynamic light scattering, temperature-dependence of turbidity, differential scanning calorimetry, and wide-angle X-ray diffraction. The results clarify that the glycon moiety of GalCer has a significant role in the formation inhibition of second associates and the plasticization of the hydrophobe. This work will shed light on the other natural glycosides to evaluate the self-assembly behaviors for supramolecular and pharmacological applications in the near future.
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Affiliation(s)
- Ryo Miyazaki
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Mahmuda Nargis
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Abu Bin Ihsan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Noriyuki Nakajima
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
- Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Masahiro Hamada
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
- Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
- Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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15
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Cruz Barrios E, Annunziata O. Determination of Critical Micelle Concentration from the Diffusion-Driven Dilution of Micellar Aqueous Mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2855-2862. [PMID: 33596077 DOI: 10.1021/acs.langmuir.1c00176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Micellization is a phenomenon of central importance in surfactant solutions. Here, we demonstrate that the diffusion-based spreading of the free boundary between a micellar aqueous solution and pure water yields a one-dimensional spatial profile of surfactant concentration that can be used to identify the critical micelle concentration, here denoted as C*. This can be achieved because dilution of micelles into water leads to their dissociation at a well-defined position along the concentration profile and an abrupt increase in the diffusion coefficient. Rayleigh interferometry was successfully employed to determine C* values for three well-known surfactants in water at 25 °C: Triton X-100 (TX-100), sodium dodecyl sulfate (SDS), and poly(oxyethylene)(4)Lauryl Ether (Brij-30). The dependence of C* on salt concentration was also characterized for TX-100 in the presence of Na2SO4, NaCl, and NaSCN. Accurate values of C* can be directly identified by visual inspection of the corresponding concentration-gradient profiles. To apply the method of least squares to experimental concentration profiles, a mathematical expression was derived from Fick's law and the pseudophase separation model of micellization with the inclusion of appropriate modifications. While Rayleigh interferometry was employed in our experiments, this approach can be extended to any experimental technique that yields one-dimensional profiles of surfactant concentration. Moreover, diffusion-driven surfactant disaggregation is precise, noninvasive, requires single-sample preparation, and applies to both nonionic and ionic surfactants. Thus, this work provides the foundation of diffusion-driven dilution methods, thereby representing a valuable addition to existing techniques for the determination of C*.
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Affiliation(s)
- Eliandreina Cruz Barrios
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, Texas 76129, United States
| | - Onofrio Annunziata
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, Texas 76129, United States
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16
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Shafat Khan M, Khanam R, Ahmad Bhat S, Sidiq N, Ismail T, Ingole PP, Pinjari RV, Ahmad Bhat M. Exploiting the unique specialty of hydrazone functionality: Synthesis of a highly sensitive UV-Vis active solvatochromic probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119154. [PMID: 33189977 DOI: 10.1016/j.saa.2020.119154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/18/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
The unique physico-chemical attributes of the hydrazone functionality have been extensively studied for a diverse range of chemical, biological and analytical applications. The synthesis of a highly sensitive hydrazone based UV-Vis active solvatochromic probe that exhibits excellent sensitivity toward sensing of solvent polarity, microstructural changes and onset of micellization in aqueous systems was carried out. Specifically, synthesis of 2,4-dinitrophenyl-2-(2-nitrobenzylidene)hydrazone (DNPNBH), through an easy to carry, atom economical, one-pot single step approach via use of low-cost precursors viz. ortho-nitrobenzaldehyde and 2,4-dinitrophenyl hydrazine is presented. The UV-Vis absorption features of the synthesized hydrazone exhibit excellent sensitivity toward the polarity of its immediate microenvironment. The microenvironment polarity sensing potential of DNPNBH is demonstrated for some single solvent systems and DMF-Water mixture as a model binary solvent system and the results are supported by quantum mechanical calculations. Use of the DNPNBH as a probe (at concentrations many orders lower than required for conventional probes) to precisely reflect the onset of micellization and estimation of critical micelle concentration (CMC) of amphiphilic molecules (5.25 mM for SDS, 1.53 mM for CTAB and 0.055 mM for Brij56) in aqueous solutions is also demonstrated. The results clearly qualify the synthesized hydrazone as a highly sensitive UV-Vis probe that can be employed for reliable sensing of solvent polarity, composition dependence of physicochemical attributes in mixed solvent systems and the estimation of CMC of surfactant systems via spectrophotometry.
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Affiliation(s)
- Mudeha Shafat Khan
- Department of Chemistry, University of Kashmir, Hazratbal Srinagar 190006, India
| | - Romana Khanam
- Department of Chemistry, University of Kashmir, Hazratbal Srinagar 190006, India
| | - Sajad Ahmad Bhat
- Department of Chemistry, University of Kashmir, Hazratbal Srinagar 190006, India
| | - Naheed Sidiq
- Department of Chemistry and Earth Sciences, Qatar University, Doha 2713, Qatar
| | - Tabasum Ismail
- Department of Chemistry, SP College, Srinagar 190001, J & K, India
| | - Pravin P Ingole
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Rahul V Pinjari
- School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded 431606, India
| | - Mohsin Ahmad Bhat
- Department of Chemistry, University of Kashmir, Hazratbal Srinagar 190006, India.
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17
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Nagappan S, Mohan A, Thomas AM, Yoo JM, Eid N, Chung I, Ameduri B, Ha CS. Synthesis of size-controlled and highly monodispersed silica nanoparticles using a short alkyl-chain fluorinated surfactant. RSC Adv 2021; 11:2194-2201. [PMID: 35424167 PMCID: PMC8693728 DOI: 10.1039/d0ra08114k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/28/2020] [Indexed: 11/21/2022] Open
Abstract
Highly monodispersed silica nanoparticles (SiNPs) were synthesised using a fluorinated surfactant, HOCH2CH(CF3)CO2H, and its efficiency was compared with efficiencies of five other surfactants. The size of the SiNPs (∼50-200 nm) was controlled by controlling the surfactant amount. The short alkyl-chain fluoro surfactant was found to be more efficient at producing monodispersed SiNPs than its long alkyl-chain fluoro or non-fluorinated surfactant counterparts.
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Affiliation(s)
- Saravanan Nagappan
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Anandhu Mohan
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Anju Maria Thomas
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Jong-Man Yoo
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Nadim Eid
- Institute Charles Gerhardt, CNRS, University of Montpellier, ENSCM Montpellier France
| | - Ildoo Chung
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Bruno Ameduri
- Institute Charles Gerhardt, CNRS, University of Montpellier, ENSCM Montpellier France
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering, Pusan National University Busan 46241 Republic of Korea
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18
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Chong WM, Lim V, Abd Kadir E. Hydrophobically modified PEGylated glycol chitosan nanoparticles: synthesis, characterisation and anticancer properties. NEW J CHEM 2021; 45:11359-11370. [DOI: 10.1039/d1nj01710a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
A novel palmitoylated glycol chitosan polymer grafted with PEG (PGC-PEG) was successfully developed to form amphiphilic micelles in aqueous solution.
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Affiliation(s)
- Wai Mun Chong
- Integrative Medicine Cluster
- Advanced Medical and Dental Institute
- Universiti Sains Malaysia
- 13200 Kepala Batas
- Malaysia
| | - Vuanghao Lim
- Integrative Medicine Cluster
- Advanced Medical and Dental Institute
- Universiti Sains Malaysia
- 13200 Kepala Batas
- Malaysia
| | - Erazuliana Abd Kadir
- Integrative Medicine Cluster
- Advanced Medical and Dental Institute
- Universiti Sains Malaysia
- 13200 Kepala Batas
- Malaysia
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19
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Khan M, Wani AA, Ismail T, Bhat SA, Sofi FA, Bhat MA. Eureka Moment: An Archimedean Alternative for the Determination of cmc of Surfactants via Weight Measurements. ACS OMEGA 2020; 5:31640-31643. [PMID: 33344815 PMCID: PMC7745210 DOI: 10.1021/acsomega.0c04029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Critical micelle concentration (cmc) is a key parameter of generally used surfactants, and many experimental techniques like tensiometry, conductivity, spectrophotometry, fluorometry, etc. for its determination have been reported. However, these contemporary methods for cmc determination are tedious, are time-consuming, are sensitive, and require sophisticated instrumentation. Herein, we demonstrate that the cmc of the surfactants can be estimated via monitoring the variation in the apparent weight of a density bottle floating in a surfactant solution as a function of surfactant concentration. The proposed method requires the use of a simple weighing balance; a cost-affordable instrument always available in scientific laboratories. The proposed method is simple to execute and does not require any complicated data analysis procedures. As an experimental proof attached to the claim, we demonstrate the estimation of the cmcs of all types of surfactants, viz., anionic, cationic, and nonionic, through the formulated method. The results obtained in terms of cmc values of the chosen surfactants closely match those reported through the use of different standardized protocols. The formulated experimental protocol is desirable in terms of the simplicity of the protocol, accuracy, and reproducibility of the results, and cost and accessibility of the required instrument. All these attributes of the presented protocol qualify it as an appropriate substitute to the modern techniques commonly used for the cmc determination.
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Affiliation(s)
- Mudeha
Shafat Khan
- Department
of Chemistry, University of Kashmir, Srinagar 190006, J & K, India
| | - Adil Amin Wani
- Department
of Chemistry, University of Kashmir, Srinagar 190006, J & K, India
| | - Tabasum Ismail
- Department
of Chemistry, SP College, Srinagar190001, J & K, India
| | - Sajad Ahmad Bhat
- School
Education Department, Govt. Higher Secondary
School Chowgam, Kulgam 192231, J & K, India
| | - Feroz Ahmad Sofi
- Department
of Chemistry, University of Kashmir, Srinagar 190006, J & K, India
| | - Mohsin Ahmad Bhat
- Department
of Chemistry, University of Kashmir, Srinagar 190006, J & K, India
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20
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Nargis M, Ihsan AB, Koyama Y. Thermoresponsive Structure and Dye Encapsulation of Micelles Comprising Bolaamphiphilic Quercetin Polyglycoside. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10764-10771. [PMID: 32816497 DOI: 10.1021/acs.langmuir.0c01564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A bolaamphiphile is a special member of amphiphilic molecules, which contains a hydrophobic skeleton and two water-soluble groups on both ends. Bolaamphiphiles form thermally stable associates in water under lower concentration than those of typical monoheaded amphiphiles, indicating the potential usefulness of bolaamphiphiles as the component of nanomaterials. However, the structural diversity of bolaamphiphiles is limited at this moment. We recently developed the synthesis of quercetin-3-O-polyglycoside (QP) as a new entry of bolaamphiphiles via a one-pot polymerization using sugar-based cyclic sulfite initiated by quercetin skeleton. Herein, we show the bolaamphiphilic properties of QP in detail. The micellization behaviors of QP are systematically investigated through comparison with those of quercetin (Que) and isoquercitrin (IQ) to evaluate the roles of glycone on the micellization of quercetin derivatives. The morphology of the micelles bearing QP is observed by cryo-transmission electron microscopy (cryo-TEM), suggesting the formation of bolaamphiphile-specific giant ribbon-like micelles in addition to spherical micelles. The thermoresponsive micellization behaviors are also discussed through the critical micelle concentration (CMC) values, the dynamic light scattering analyses at various temperatures, and thermal hysteresis of the micellizations. It is indicated that the polysaccharide chains integrated on the surface of micelles would serve as a steric protecting group to endow the micelles with kinetic stability. These results will shed light on natural glycoside skeletons to design a new class of micelles for advanced health applications in near future.
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Affiliation(s)
- Mahmuda Nargis
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Abu Bin Ihsan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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21
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Nargis M, Ihsan AB, Koyama Y. Effects of Sugar Chain Length of Quercetin-3-O-glycosides on Micellization in Aqueous Media. CHEM LETT 2020. [DOI: 10.1246/cl.200270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Mahmuda Nargis
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Abu Bin Ihsan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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22
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Lee ST, Kim H, Kwon JH, Oh HB. Abnormal behaviors in the calibration curves of liquid chromatography-tandem mass spectrometry occurring in the quantitative analysis of surfactants near critical micelle concentrations. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 56:e4599. [PMID: 32677769 DOI: 10.1002/jms.4599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/15/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
Surfactants, including quaternary ammonium compounds, are widely used in daily life as part of consumer chemical products and, more recently, in the shale oil industry. Because of their unique amphiphilic properties, surfactants form micelles at concentrations above a certain threshold known as the critical micelle concentration (CMC). A previous electrospray ionization mass spectrometry studies conducted by Siuzdak et al. and others presented indirect evidence regarding micelle formation. Herein, we have used liquid chromatography-tandem mass spectrometry to explore how such micelle formations affect the quantitative analysis of surfactants. Results reveal abnormal behaviors in the calibration plots of a few selected anionic and cationic surfactants, such as sodium decyl sulfate (SDeS), sodium dodecyl sulfate (SDS), myristyltrimethylammonium bromide (MTAB), and benzyldimethyloctadecylammonium chloride (BAC-18). At concentrations close to the respective CMCs of these surfactants, the calibration plot for MTAB flattened, whereas the slopes of the calibration plots for SDeS, SDS, and BAC-18 suddenly changed. These abnormal behaviors can be related to micelle formation. From a practical perspective, the above observations suggest that in the quantitative analysis of surfactants, high micelle concentrations close to the CMC should be avoided to obtain accurate surfactant measurements.
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Affiliation(s)
- Sang Tak Lee
- Department of Chemistry, Sogang University, Seoul, 04107, Republic of Korea
| | - Hyeri Kim
- Department of Chemistry, Sogang University, Seoul, 04107, Republic of Korea
| | - Jung-Hwan Kwon
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Han Bin Oh
- Department of Chemistry, Sogang University, Seoul, 04107, Republic of Korea
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23
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Thompson SW, Guimarães TR, Zetterlund PB. RAFT Emulsion Polymerization: MacroRAFT Agent Self-Assembly Investigated Using a Solvachromatic Dye. Biomacromolecules 2020; 21:4577-4590. [DOI: 10.1021/acs.biomac.0c00685] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Steven W. Thompson
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Thiago R. Guimarães
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Per B. Zetterlund
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
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Wei Z, Yi D, Hu X, Sun C, Long Y, Zheng H. Determining the critical micelle concentrations of cationic surfactants based on the visible-light-induced oxidase-like activity of fluorescein. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124698] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Li H, Hu D, Liang F, Huang X, Zhu Q. Influence factors on the critical micelle concentration determination using pyrene as a probe and a simple method of preparing samples. ROYAL SOCIETY OPEN SCIENCE 2020; 7:192092. [PMID: 32269815 PMCID: PMC7137975 DOI: 10.1098/rsos.192092] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/30/2020] [Indexed: 06/11/2023]
Abstract
The critical micelle concentration (CMC) is an important parameter of widely used surfactants and needs to be measured in the application and development of surfactants. Fluorometric method is a widely used method determining CMC values owing to the advantages of highly sensitivity, fast response and wide application range. There are two common methods (I and II) of preparing samples for CMC fluorometric determination. In the process of developing CMC probes with aggregation-induced emission (AIE) characteristics, we found that methods I and II were not suitable for CMC probes with AIE charateristics and developed a new sample preparation method (III), which is not only suitable for CMC probes with AIE characteristic but also decreases operation procedures and errors owing to omitting the addition of micro amount of dyes into each sample. To ascertain if method III is also suitable for other CMC probes without AIE characteristics, the CMC values of surfactants were determined by fluorometric method using widely used pyrene without AIE charateristic as probe and methods I-III to prepare samples. The obtained experimental results proved that method III not only was suitable for preparation of samples for CMC determination of surfactants using pyrene as probe but also led to the least average deviation (methods I-III led to ±0.13, ±0.34 and ±0.05 mM deviation for the CMC determination of sodium dodecyl sulfate (SDS), respectively). The CMC determination using pyrene as probe is based on its change in the ratio (I FIII/I FI) of its emission peaks I and III with surfactant concentration. Unexpectedly, it was found that the I FIII/I FI value of pyrene in surfactant solutions is sensitive to the measurement conditions changing exciting light energy, such as slit widths and sample-measured number. In addition, it was found that surfactant SDS or cetrimonium bromide from different suppliers not only has significantly different CMC values but also leads to very different I FIII/I FI values of pyrene in a certain concentration of surfactant, which can be used as a simple method to distinguish the same surfactant with different CMC values.
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Affiliation(s)
| | | | | | | | - Qiuhua Zhu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, People's Republic of China
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26
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Wu S, Liang F, Hu D, Li H, Yang W, Zhu Q. Determining the Critical Micelle Concentration of Surfactants by a Simple and Fast Titration Method. Anal Chem 2020; 92:4259-4265. [PMID: 31710805 DOI: 10.1021/acs.analchem.9b04638] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Critical micelle concentration (CMC) is a crucial parameter of widely used surfactants, and many methods have been developed for CMC determination. However, the current methods for CMC determination, such as conductive, surface tension, and fluorometric methods, are tedious and time- and sample-consuming because a series of samples with different concentrations of surfactants need to be prepared and measured. Although an economical, simple, and fast titration method for CMC determination (only one sample and several minutes are needed) was reported using changes in the color/fluorescence of ionic organic dyes, it has not been used in practical CMC determination owing to the disadvantages of these dyes: very narrow application range (only suitable for cationic or anionic surfactants) and difficult to identify titration end point, especially using different concentrations (10-300 μM) for the same kind surfactants. Here a C6-unsubstituted tetrahydropyrimidine (THP-T1) was found to possess unique and excellent characteristics in titrated surfactant solutions: above CMC, preferring to dissolve in micelles and showing no emission, and not until near/at CMC, being released from micelles and instantly forming aggregates with strong fluorescence. The fluorescence-turn-on change at CMC (titration end point) is so sensitive that it can be clearly observed without comparison of blank and control of dye concentration, and the concentration (c'THP) of THP-T1 in titrated solution at CMC is only about 1 μM for zwitterionic surfactants and 2.5 μM for other kinds of surfactants. The CMC values determined by the THP-T1-based titration method are almost the same as those determined by the fluorometric method using THP-T1 as probe. THP-T1 overcomes the disadvantages of reported dyes for CMC titration and realizes the economical, simple and fast CMC titration of different kinds of surfactants for the first time.
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Affiliation(s)
- Shengen Wu
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Feiqing Liang
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Danna Hu
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Hao Li
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Weijie Yang
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Qiuhua Zhu
- School of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
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Birch H, Redman AD, Letinski DJ, Lyon DY, Mayer P. Determining the water solubility of difficult-to-test substances: A tutorial review. Anal Chim Acta 2019; 1086:16-28. [DOI: 10.1016/j.aca.2019.07.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/04/2019] [Accepted: 07/18/2019] [Indexed: 11/29/2022]
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28
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Lu D, Zhou J, Hou S, Xiong Q, Chen Y, Pu K, Ren J, Duan H. Functional Macromolecule-Enabled Colloidal Synthesis: From Nanoparticle Engineering to Multifunctionality. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902733. [PMID: 31463987 DOI: 10.1002/adma.201902733] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/01/2019] [Indexed: 06/10/2023]
Abstract
The synthesis of well-defined inorganic colloidal nanostructures using functional macromolecules is an enabling technology that offers the possibility of fine-tuning the physicochemical properties of nanomaterials and has contributed to a broad range of practical applications. The utilization of functional reactive polymers and their colloidal assemblies leads to a high level of control over structural parameters of inorganic nanoparticles that are not easily accessible by conventional methods based on small-molecule ligands. Recent advances in polymerization techniques for synthetic polymers and newly exploited functions of natural biomacromolecules have opened up new avenues to monodisperse and multifunctional nanostructures consisting of integrated components with distinct chemistries but complementary properties. Here, the evolution of colloidal synthesis of inorganic nanoparticles is revisited. Then, the new developments of colloidal synthesis enabled by functional macromolecules and practical applications associated with the resulting optical, catalytic, and structural properties of colloidal nanostructures are summarized. Finally, a perspective on new and promising pathways to novel colloidal nanostructures built upon the continuous development of polymer chemistry, colloidal science, and nanochemistry is provided.
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Affiliation(s)
- Derong Lu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jiajing Zhou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Shuai Hou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Qirong Xiong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Yonghao Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Kanyi Pu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jinghua Ren
- Cancer Center, Union Hospital, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
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29
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Ihsan AB, Nargis M, Koyama Y. Effects of the Hydrophilic-Lipophilic Balance of Alternating Peptides on Self-Assembly and Thermo-Responsive Behaviors. Int J Mol Sci 2019; 20:ijms20184604. [PMID: 31533361 PMCID: PMC6770757 DOI: 10.3390/ijms20184604] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/11/2019] [Indexed: 02/06/2023] Open
Abstract
A series of N-substituted poly(Gly–alter–Val) peptides were successfully synthesized for the systematic evaluation of the micellization behavior of alternating peptides. Three-component polymerization employing an aldehyde, a primary ammonium chloride, and potassium isocyanoacetate afforded four alternating peptides in excellent yields. We investigated the dependence of the hydrophilic–lipophilic balance of alternating peptides on the micellization behavior. All the aqueous solutions of alternating peptides exhibited upper critical solution temperature (UCST) behaviors, strongly indicating that the alternating binary pattern would mainly contribute to the UCST behaviors. The cloud points of alternating peptides shifted to higher temperatures as the side chains became more hydrophilic, which is opposite to the trend of typical surfactants. Such unusual micellization behaviors appeared to be dependent on the quasi-stable structure of single polymer chains formed in water.
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Affiliation(s)
- Abu Bin Ihsan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Mahmuda Nargis
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
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30
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Niu XX, Xu QC, Li AZ, Li YJ, Zhang XT, Zhang Y, Xing GW. A BODIPY-carbazole hybrid as a fluorescent probe: the design, synthesis, and discrimination of surfactants and the determination of the CMC values. Analyst 2019; 144:6866-6870. [DOI: 10.1039/c9an01940e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel fluorescent probe (BDP-Zn2+) was developed to efficiently discriminate four kinds of surfactants and determine the CMC values.
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Affiliation(s)
- Xiao-xiao Niu
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Qin-chao Xu
- The State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - An-zhen Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Yang-jie Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Xiao-tai Zhang
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Yuan Zhang
- College of Chemistry
- Beijing Normal University
- Beijing
- China
- Key Laboratory of Energy Conversion and Storage Materials
| | - Guo-wen Xing
- College of Chemistry
- Beijing Normal University
- Beijing
- China
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31
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Zhang K, Zhang B, Song X, Liu B, Jing L, Chen B. Generation of shrimp waste-based dispersant for oil spill response. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:9443-9453. [PMID: 29353356 DOI: 10.1007/s11356-018-1222-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
In this study, shrimp waste was enzymatically hydrolyzed to generate a green dispersant and the product was tested for crude oil dispersion in seawater. The hydrolysis process was first optimized based on the dispersant effectiveness (DE) of the product. The functional properties of the product were identified including stability, critical micelle concentration, and emulsification activity. Water was confirmed as a good solvent for dispersant generation when compared with three chemical solvents. The effects of salinity, mixing energy, and temperature on the dispersion of the Alaska North Slope (ANS) crude oil were examined. Microtox acute toxicity test was also conducted to evaluate the toxicity of the produced dispersant. In addition, DE of the product on three different types of crude oil, including ANS crude oil, Prudhoe Bay crude oil (PBC), and Arabian Light crude oil (ALC) was compared with that of the Corexit 9500, respectively. The research output could lead to a promising green solution to the oil spill problem and might result in many other environmental applications.
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Affiliation(s)
- Kedong Zhang
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Baiyu Zhang
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada.
| | - Xing Song
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Bo Liu
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Liang Jing
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
| | - Bing Chen
- Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada
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32
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Determination of the Critical Micelle Concentration of Neutral and Ionic Surfactants with Fluorometry, Conductometry, and Surface Tension—A Method Comparison. J Fluoresc 2018; 28:465-476. [DOI: 10.1007/s10895-018-2209-4] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/04/2018] [Indexed: 01/08/2023]
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33
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Yesil F, Suwa M, Tsukahara S. Anchoring Energy Measurements at the Aqueous Phase/Liquid Crystal Interface with Cationic Surfactants Using Magnetic Fréedericksz Transition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:81-87. [PMID: 29202240 DOI: 10.1021/acs.langmuir.7b03005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We constructed the apparatus to observe the Fréedericksz transition of liquid crystal in contact with water. The Fréedericksz transition is a distortion of nematic liquid crystals (LCs) induced by external fields. In the present system, sweeping homogeneous magnetic field was applied to the sample, and the distortion of the LC was visualized with a polarized light microscope with the crossed Nichols configuration. The anchoring energy (WAQ/LC) at the aqueous phase/LC interface was measured in the presence of surfactant from the threshold magnetic field of the Fréedericksz transition. We studied two cationic surfactants: dodecyltrimethylammonium bromide and tetradecyltrimethylammonium bromide. A nematic LC, 4-cyano-4'-pentylbiphenyl (5CB), was examined, which was confined in a copper grid on an octadecyltrichlorosilane-treated microscope glass plate. Measured WAQ/LC were reproducible and showed consistence with the reported region for the water/LC interface. Interfacial excess of surfactants was also measured by the pendant drop method, and the relationship between the obtained WAQ/LC and the interfacial excess was investigated. Experiments showed that an increase in the anchoring energy depends on the surfactant and its interfacial excess. The region of the interfacial coverage, at which WAQ/LC increases, varied with the chain length of the surfactant. The measurement of the anchoring energy will provide new fundamental information on aqueous phase/LC interface.
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Affiliation(s)
- Fatma Yesil
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Masayori Suwa
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Satoshi Tsukahara
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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34
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Thakkar K, Bharatiya B, Ray D, Aswal VK, Bahadur P. Molecular interactions involving aqueous Triton X-100 micelles and anionic surfactants: Investigations on surface activity and morphological transitions. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Surender EM, Comby S, Martyn S, Cavanagh B, Lee TC, Brougham DF, Gunnlaugsson T. Cyclen lanthanide-based micellar structures for application as luminescent [Eu(iii)] and magnetic [Gd(iii)] resonance imaging (MRI) contrast agents. Chem Commun (Camb) 2016; 52:10858-61. [PMID: 27523566 DOI: 10.1039/c6cc03092k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The synthesis of coordinatively unsaturated tetra-substituted 1,4,7,10-tetraazacyclododecane (cyclen) lanthanide complexes is described; these structures, possessing hydrophobic (C12-alkyl) tails and hydrophilic head groups, self-assemble into supramolecular micellar structures in aqueous solution, and hence can be utilised as novel contrast agents for MRI.
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Affiliation(s)
- Esther M Surender
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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36
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Li Q, Lai KL, Chan PS, Leung SC, Li HY, Fang Y, To KKW, Choi CHJ, Gao QY, Lee TWY. Micellar delivery of dasatinib for the inhibition of pathologic cellular processes of the retinal pigment epithelium. Colloids Surf B Biointerfaces 2016; 140:278-286. [PMID: 26764115 DOI: 10.1016/j.colsurfb.2015.12.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 12/10/2015] [Accepted: 12/23/2015] [Indexed: 12/12/2022]
Abstract
The objective of this study was to fabricate dasatinib-loaded nanoparticles and evaluate their efficacy in inhibiting cellular processes of the retinal pigment epithelium (RPE) related to proliferative vitreoretinopathy (PVR), for which there are no approved pharmacological approaches. We successfully encapsulated dasatinib, a poorly soluble multi-targeted tyrosine kinase inhibitor which has great potential for the treatment of PVR, into nanoparticles prepared from micellation of PEG-b-PCL. The size of the nanomicelles was approximately 55nm with a narrow distribution. They increased the solubility of dasatinib by 475× and provided a sustained drug release. ARPE-19, an immortal RPE cell line, was used to assess the in vitro efficacy of micellar dasatinib because the RPE is believed to play a key role in the pathogenesis of PVR. Three cell-based assays, namely, proliferation, adhesion and migration, which represent three important PVR-related cellular changes of the RPE, were conducted and the cytotoxicity of micelles was also evaluated. Both blank and dasatinib-loaded micelles were non-cytotoxic towards ARPE-19 cells. Micellar dasatinib significantly inhibited cell proliferation, adhesion and migration compared to the free drug; this might be attributable to enhanced solubility. PEG-b-PCL micelles were taken up into the ARPE-19 cells by an energy-dependent clatharin and caveolae-mediated endocytosis. Our results indicated that cellular uptake and the anti-proliferation effect of drugloaded micelles were linearly correlated. Drug loading appears to be a critical parameter for cellular uptake which in turn impacts the in vitro bioactivities of polymeric micelles. Our results clearly demonstrated that dasatinib-encapsulated micelles offer considerable promise in the management of PVR.
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Affiliation(s)
- Qingqing Li
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Ka Lun Lai
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Pui Shan Chan
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Sui Chu Leung
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Ho Yin Li
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Yuan Fang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Kenneth K W To
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Chung Hang J Choi
- Division of Biomedical Engineering, Department of Electronic Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Qian Ying Gao
- State Key Laboratory of Ophthalmology, ZhongShan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Thomas W Y Lee
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China.
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37
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An induction current method for determining the critical micelle concentration and the polarity of surfactants. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3536-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Iglesias O, Sanromán MA, Pazos M. Surfactant-Enhanced Solubilization and Simultaneous Degradation of Phenanthrene in Marine Sediment by Electro-Fenton Treatment. Ind Eng Chem Res 2014. [DOI: 10.1021/ie4041115] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olalla Iglesias
- Department
of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As
Lagoas, Marcosende 36310, Vigo, Spain
| | - M. Angeles Sanromán
- Department
of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As
Lagoas, Marcosende 36310, Vigo, Spain
| | - Marta Pazos
- Department
of Chemical Engineering, University of Vigo, Isaac Newton Building, Campus As
Lagoas, Marcosende 36310, Vigo, Spain
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39
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Zhu Q, Huang L, Su J, Liu S. A sensitive and visible fluorescence-turn-on probe for the CMC determination of ionic surfactants. Chem Commun (Camb) 2014; 50:1107-9. [DOI: 10.1039/c3cc45244a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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DBD dyes as fluorescent probes for sensing lipophilic environments. Bioorg Med Chem Lett 2012; 22:5367-71. [DOI: 10.1016/j.bmcl.2012.07.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 07/11/2012] [Accepted: 07/13/2012] [Indexed: 11/22/2022]
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