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Henderson RDE, Mei N, Xu Y, Gaikwad R, Wettig S, Leonenko Z. Nanoscale Structure of Lipid- Gemini Surfactant Mixed Monolayers Resolved with AFM and KPFM Microscopy. Nanomaterials (Basel) 2024; 14:572. [PMID: 38607107 PMCID: PMC11013119 DOI: 10.3390/nano14070572] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/13/2024]
Abstract
Drug delivery vehicles composed of lipids and gemini surfactants (GS) are promising in gene therapy. Tuning the composition and properties of the delivery vehicle is important for the efficient load and delivery of DNA fragments (genes). In this paper, we studied novel gene delivery systems composed of 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), 1,2-dipalmitoyl-sn-3-phosphocholine (DPPC), and GS of the type N,N-bis(dimethylalkyl)-α,ω-alkanediammonium dibromide at different ratios. The nanoscale properties of the mixed DOPC-DPPC-GS monolayers on the surface of the gene delivery system were studied using atomic force microscopy (AFM) and Kelvin probe force microscopy (KPFM). We demonstrate that lipid-GS mixed monolayers result in the formation of nanoscale domains that vary in size, height, and electrical surface potential. We show that the presence of GS can impart significant changes to the domain topography and electrical surface potential compared to monolayers composed of lipids alone.
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Affiliation(s)
- Robert D. E. Henderson
- Department of Physics & Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (R.D.E.H.); (N.M.); (Y.X.)
- Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Nanqin Mei
- Department of Physics & Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (R.D.E.H.); (N.M.); (Y.X.)
- Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Yue Xu
- Department of Physics & Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (R.D.E.H.); (N.M.); (Y.X.)
| | - Ravi Gaikwad
- Department of Physics & Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (R.D.E.H.); (N.M.); (Y.X.)
| | - Shawn Wettig
- Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- School of Pharmacy, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Zoya Leonenko
- Department of Physics & Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (R.D.E.H.); (N.M.); (Y.X.)
- Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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Nagao M, Ranneh AH, Iwao Y, Yamamoto K, Ikeda Y. Preparation of Cubosomes with Improved Colloidal and Structural Stability Using a Gemini Surfactant. Mol Pharm 2023; 20:5066-5077. [PMID: 37726201 PMCID: PMC10548465 DOI: 10.1021/acs.molpharmaceut.3c00378] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/02/2023] [Accepted: 09/06/2023] [Indexed: 09/21/2023]
Abstract
Cubosomes are nanoparticles with bicontinuous cubic internal nanostructures that have been considered for use in drug delivery systems (DDS). However, their low structural stability is a crucial concern for medical applications. Herein, we investigated the use of a gemini surfactant, sodium dilauramidoglutamide lysine (DLGL), which is composed of two monomeric surfactants linked with a spacer to improve the structural stability of cubosomes prepared with phytantriol (PHY). Uniform nanosuspensions comprising a specific mixing ratio of DLGL and PHY in water prepared via ultrasonication were confirmed by using dynamic light scattering. Small-angle X-ray scattering and cryo-transmission electron microscopy revealed the formation of Pn3̅m cubosomes in a range of DLGL/PHY solid ratios between 1 and 3% w/w. By contrast, cubosome formation was not observed at DLGL/PHY solid ratios of 5% w/w or higher, suggesting that excess DLGL interfered with cubosome formation and caused them to transform into small unilamellar vesicles. The addition of phosphate-buffered saline to the nanosuspension caused aggregation when the solid ratio of DLGL/PHY was less than 5% w/w. However, Im3̅m cubosomes were obtained at solid ratios of DLGL/PHY of 6, 7.5, and 10% w/w. The lattice parameters of the Pn3̅m and Im3̅m cubosomes were approximately 7 and 11-13 nm, respectively. The lattice parameters of Im3̅m cubosomes were affected by the concentration of DLGL. Pn3̅m cubosomes were surprisingly stable for 4 weeks at both 25 and 5 °C. In conclusion, DLGL, a gemini surfactant, was found to act as a new stabilizer for PHY cubosomes at specific concentrations. Cubosomes composed of DLGL are stable under low-temperature storage conditions, such as in refrigerators, making them a viable option for heat-sensitive DDS.
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Affiliation(s)
- Masao Nagao
- Graduate
School of Pharmaceutical Sciences, Chiba
University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Japan
Manufacturing, Global Vaccine Business Unit, Takeda Pharmaceutical Company, Limited, 4720 Takeda, Mitsui, Hikari 743-8502, Yamaguchi, Japan
| | - Abdul-Hackam Ranneh
- Analytical
Development, Pharmaceutical Sciences, Takeda
Pharmaceutical Company, Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa 251-8555, Kanagawa, Japan
| | - Yasunori Iwao
- Department
of Physical Pharmaceutics, School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shichiban-cho, Wakayama 640-8156, Japan
| | - Katsuhiko Yamamoto
- Graduate
School of Pharmaceutical Sciences, Chiba
University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Analytical
Development, Pharmaceutical Sciences, Takeda
Pharmaceutical Company, Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa 251-8555, Kanagawa, Japan
| | - Yukihiro Ikeda
- Graduate
School of Pharmaceutical Sciences, Chiba
University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
- Analytical
Development, Pharmaceutical Sciences, Takeda
Pharmaceutical Company, Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa 251-8555, Kanagawa, Japan
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Giráldez-Pérez RM, Grueso EM, Carbonero A, Álvarez Márquez J, Gordillo M, Kuliszewska E, Prado-Gotor R. Synergistic Antibacterial Effects of Amoxicillin and Gold Nanoparticles: A Therapeutic Option to Combat Antibiotic Resistance. Antibiotics (Basel) 2023; 12:1275. [PMID: 37627696 PMCID: PMC10451730 DOI: 10.3390/antibiotics12081275] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/19/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Compacted Au@16-mph-16/DNA-AMOX (NSi) nanosystems were prepared from amoxicillin (AMOX) and precursor Au@16-mph-16 gold nanoparticles (Ni) using a Deoxyribonucleic acid (DNA) biopolymer as a glue. The synthesized nanocarrier was tested on different bacterial strains of Escherichia coli, Staphylococcus aureus, and Streptococcus pneumoniae to evaluate its effectiveness as an antibiotic as well as its internalization. Synthesis of the nanosystems required previous structural and thermodynamic studies using circular dichroism (CD) and UV-visible techniques to guarantee optimal complex formation and maximal DNA compaction, characteristics which facilitate the correct uptake of the nanocarrier. Two nanocomplexes with different compositions and structures, denoted NS1 and NS2, were prepared, the first involving external Au@16-mph-16 binding and the second partial intercalation. The Ni and NSi nanosystems obtained were characterized via transmission electron microscopy (TEM), zeta potential, and dynamic light scattering (DLS) techniques to measure their charge, aggregation state and hydrodynamic size, and to verify their presence inside the bacteria. From these studies, it was concluded that the zeta potential values for gold nanoparticles, NS1, and NS2 nanosystems were 67.8, -36.7, and -45.1 mV. Moreover, the particle size distribution of the Au@16-mph-16 gold nanoparticles and NS2 nanoformulation was found to be 2.6 nm and 69.0 nm, respectively. However, for NS1 nanoformulation, a bimodal size distribution of 44 nm (95.5%) and 205 nm (4.5%) was found. Minimal inhibitory concentration (MIC) values were determined for the bacteria studied using a microdilution plates assay. The effect on Escherichia coli bacteria was notable, with MIC values of 17 µM for both the NS1 and NS2 nanosystems. The Staphylococcus aureus chart shows a greater inhibition effect of NS2 and NP2 in non-diluted wells, and clearly reveals a great effect on Streptococcus pneumoniae, reaching MIC values of 0.53 µM in more diluted wells. These results are in good agreement with TEM internalization studies of bacteria that reveal significant internalization and damage in Streptococcus pneumoniae. In all the treatments carried out, the antibiotic capacity of gold nanosystems as enhancers of amoxicillin was demonstrated, causing both the precursors and the nanosystems to act very quickly, and thus favoring microbial death with a small amount of antibiotic. Therefore, these gold nanosystems may constitute an effective therapy to combat resistance to antibiotics, in addition to avoiding the secondary effects derived from the administration of high doses of antibiotics.
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Affiliation(s)
- Rosa M. Giráldez-Pérez
- Department of Cell Biology, Physiology and Immunology, Faculty of Sciences, University of Cordoba, 14014 Cordoba, Spain;
| | - Elia M. Grueso
- Department of Physical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain;
| | - Alfonso Carbonero
- Department of Animal Health, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (A.C.); (M.G.)
| | - Juan Álvarez Márquez
- Department of Cell Biology, Physiology and Immunology, Faculty of Sciences, University of Cordoba, 14014 Cordoba, Spain;
| | - Mirian Gordillo
- Department of Animal Health, Veterinary Faculty, University of Cordoba, 14014 Cordoba, Spain; (A.C.); (M.G.)
| | | | - Rafael Prado-Gotor
- Department of Physical Chemistry, Faculty of Chemistry, University of Seville, 41012 Seville, Spain;
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Vasileva L, Gaynanova G, Valeeva F, Romanova E, Pavlov R, Kuznetsov D, Belyaev G, Zueva I, Lyubina A, Voloshina A, Petrov K, Zakharova L. Synthesis, Properties, and Biomedical Application of Dicationic Gemini Surfactants with Dodecane Spacer and Carbamate Fragments. Int J Mol Sci 2023; 24:12312. [PMID: 37569687 PMCID: PMC10419252 DOI: 10.3390/ijms241512312] [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: 07/18/2023] [Revised: 07/29/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
A synthesis procedure and aggregation properties of a new homologous series of dicationic gemini surfactants with a dodecane spacer and two carbamate fragments (N,N'-dialkyl-N,N'-bis(2-(ethylcarbamoyloxy)ethyl)-N,N'-dimethyldodecan-1,6-diammonium dibromide, n-12-n(Et), where n = 10, 12, 14) were comprehensively described. The critical micelle concentrations of gemini surfactants were obtained using tensiometry, conductometry, spectrophotometry, and fluorimetry. The thermodynamic parameters of adsorption and micellization, i.e., maximum surface excess (Гmax), the surface area per surfactant molecule (Amin), degree of counterion binding (β), and Gibbs free energy of micellization (∆Gmic), were calculated. Functional activity of the surfactants, including the solubilizing capacity toward Orange OT and indomethacin, incorporation into the lipid bilayer, minimum inhibitory concentration, and minimum bactericidal and fungicidal concentrations, was determined. Synthesized gemini surfactants were further used for the modification of liposomes dual-loaded with α-tocopherol and donepezil hydrochloride for intranasal treatment of Alzheimer's disease. The obtained liposomes have high stability (more than 5 months), a significant positive charge (approximately + 40 mV), and a high degree of encapsulation efficiency toward rhodamine B, α-tocopherol, and donepezil hydrochloride. Korsmeyer-Peppas, Higuchi, and first-order kinetic models were used to process the in vitro release curves of donepezil hydrochloride. Intranasal administration of liposomes loaded with α-tocopherol and donepezil hydrochloride for 21 days prevented memory impairment and decreased the number of Aβ plaques by 37.6%, 40.5%, and 72.6% in the entorhinal cortex, DG, and CA1 areas of the hippocampus of the brain of transgenic mice with Alzheimer's disease model (APP/PS1) compared with untreated animals.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Lucia Zakharova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Str., 420088 Kazan, Russia
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Liang Y, Li H, Ji J, Wang J, Ji Y. Self-Aggregation, Antimicrobial Activity and Cytotoxicity of Ester-Bonded Gemini Quaternary Ammonium Salts: The Role of the Spacer. Molecules 2023; 28:5469. [PMID: 37513340 PMCID: PMC10386392 DOI: 10.3390/molecules28145469] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Five ester-bonded gemini quaternary ammonium surfactants C12-En-C12 (n = 2, 4, 6), with a flexible spacer group, and C12-Bm-C12 (m = 1, 2), with rigid benzene spacers, were synthesized via a two-step reaction and analyzed. Furthermore, the effects of the spacer structure, spacer length and polymerization degree on the self-aggregation, antimicrobial activity and cytotoxicity of C12-En-C12 and C12-Bm-C12 and their corresponding monomer N-dodecyl-N,N,N-trimethyl ammonium chloride DTAC were investigated. The results showed that C12-En-C12 and C12-Bm-C12 had markedly lower critical micellar concentration (CMC) values and lower surface tension than DTAC. Moreover, the CMC values of C12-En-C12 and C12-Bm-C12 decreased with increasing spacer length. In the case of equivalent chain length, the rigidity and steric hindrance of phenylene and 1,4-benzenediyl resulted in larger CMC values for C12-Bm-C12 than for C12-En-C12. The antibacterial ability of C12-En-C12 and C12-Bm-C12 was assessed using Escherichia coli (E. coli) and Staphylococcus albus (S. aureus) based on minimum inhibitory concentrations (MICs). Furthermore, C12-En-C12 and C12-Bm-C12 exhibited higher antimicrobial activity than DTAC and had stronger function toward S. aureus than E. coli. The antimicrobial activity was enhanced by increasing the spacer chain length and decreased with the increased rigidity of the spacers. The cytotoxic effects of C12-En-C12 and C12-Bm-C12 in cultured Hela cells were evaluated by the standard CCK8 method based on half-maximal inhibitory concentration (IC50). The cytotoxicity of C12-En-C12 and C12-Bm-C12 was significantly lower than alkanediyl-α,ω-bis(dimethyldodecylammonium) bromide surfactants and DTAC. The spacer structure and the spacer length could induce significant cytotoxic effects on Hela cells. These findings indicate that the five ester-bonded GQASs have stronger antibacterial activity and lower toxicity profile, and thus can be used in the pharmaceutical industry.
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Affiliation(s)
- Yaqin Liang
- Department of Chemistry, Changzhi University, Changzhi 046000, China
| | - Hui Li
- Department of Chemistry, Changzhi University, Changzhi 046000, China
| | - Jiahui Ji
- Department of Chemistry, Changzhi University, Changzhi 046000, China
| | - Jiayu Wang
- Department of Chemistry, Changzhi University, Changzhi 046000, China
| | - Yujie Ji
- Department of Chemistry, Changzhi University, Changzhi 046000, China
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Halder S, Paul M, Dyagala S, Aggrawal R, Aswal VK, Biswas S, Saha SK. Role of Gemini Surfactants with Variable Spacers and SiO 2 Nanoparticles in ct-DNA Compaction and Applications toward In Vitro/ In Vivo Gene Delivery. ACS Appl Bio Mater 2023. [PMID: 37277159 DOI: 10.1021/acsabm.3c00256] [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] [Indexed: 06/07/2023]
Abstract
Compaction of calf thymus DNA (ct-DNA) by two cationic gemini surfactants, 12-4-12 and 12-8-12, in the absence and presence of negatively charged SiO2 nanoparticles (NPs) (∼100 nm) has been explored using various techniques. 12-8-12 having a longer hydrophobic spacer induces a greater extent of ct-DNA compaction than 12-4-12, which becomes more efficient with SiO2 NPs. While 50% ct-DNA compaction in the presence of SiO2 NPs occurs at ∼77 nM of 12-8-12 and ∼130 nM of 12-4-12, but a conventional counterpart surfactant, DTAB, does it at its concentration as high as ∼7 μM. Time-resolved fluorescence anisotropy measurements show changes in the rotational dynamics of a fluorescent probe, DAPI, and helix segments in the condensed DNA. Fluorescence lifetime data and ethidium bromide exclusion assays reveal the binding sites of surfactants to ct-DNA. 12-8-12 with SiO2 NPs has shown the highest cell viability (≥90%) and least cell death in the human embryonic kidney (HEK) 293 cell lines in contrast to the cell viability of ≤80% for DTAB. These results show that 12-8-12 with SiO2 NPs has the highest time and dose-dependent cytotoxicity compared to 12-8-12 and 12-4-12 in the murine breast cancer 4T1 cell line. Fluorescence microscopy and flow cytometry are performed for in vitro cellular uptake of YOYO-1-labeled ct-DNA with surfactants and SiO2 NPs using 4T1 cells after 3 and 6 h incubations. The in vivo tumor accumulation studies are carried out using a real-time in vivo imaging system after intravenous injection of the samples into 4T1 tumor-bearing mice. 12-8-12 with SiO2 has delivered the highest amount of ct-DNA in cells and tumors in a time-dependent manner. Thus, the application of a gemini surfactant with a hydrophobic spacer and SiO2 NPs in compacting and delivering ct-DNA to the tumor is proven, warranting its further exploration in nucleic acid therapy for cancer treatment.
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Affiliation(s)
- Sayantan Halder
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Milan Paul
- Department of Pharmacy, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Shalini Dyagala
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Rishika Aggrawal
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, Maharashtra 400085, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Subit K Saha
- Department of Chemistry, Birla Institute of Technology & Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
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Han Y, Dai C, Duan Y, Tu Y, Liu S, Zhang Y. Synthesis and Surface Properties of Photoresponsive Gemini Surfactants: Implication for Remediating PAHs-Contaminated Groundwater. ACS Appl Mater Interfaces 2023; 15:10642-10650. [PMID: 36790397 DOI: 10.1021/acsami.2c20623] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The efficient utility of surfactants remains a daunting task for groundwater remediation. In this study, we have synthesized a conventional photoresponsive surfactant 4-[4-[(4-butylphenyl)azo]phenoxy]butyldimethylethylammonium bromide (AzoPB) and a gemini photoresponsive surfactant N1,N2-bis[4-[4-[(4-butylphenyl)azo]phenoxy]butyl]-N1,N2-tetramethylethane-1,2-diammonium bromide (AzoPBT) for solubilizing PAHs in groundwater. The two surfactants' photosensitivity, surface properties, and solubilization/release ability for phenanthrene (Phe) and acenaphthylene (Ace) were studied in detail. Under UV-light irradiation for 15-20 s, the two surfactants can be converted from trans to cis, while cis-to-trans isomerization can be achieved under visible-light irradiation for 1 min. Compared to AzoPB, AzoPBT exhibited strong surface properties such as lower critical micelle concentration (0.52 mM), surface tension (γ, 28.94 mN·m-1), minimum area (Amin, 1.72 × 10-8 nm2), and higher maximum adsorption (Γmax, 96.55 mol·m-2). The solubility of Phe and Ace in the AzoPBT aqueous solution (12.84 and 14.27 mg/L) was much higher than that in the AzoPB aqueous solution (7.51 and 8.77 mg/L) and gradually increased as the surfactant concentration increased in both aqueous solutions. Compared to AzoPB, gemini surfactant AzoPBT exhibited stronger solubilization ability. After four cycles of cis-trans isomerization conversion, AzoPBT could still reduce the hydrophobicity of Phe in natural groundwater, although the solubility of Phe decreased slightly. Additionally, the release capacity of AzoPBT was significantly higher than that of AzoPB during the cyclic solubilization-release process. The results indicated that gemini photoresponsive surfactants should be preferable to conventional photoresponsive surfactants for groundwater remediation due to their higher solubilization and release efficiency for Phe in the cyclic solubilization and release process, which can improve repair efficiency, minimize secondary pollution, and reduce remediation costs.
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Affiliation(s)
- Yueming Han
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Chaomeng Dai
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Yanping Duan
- School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, P. R. China
- Institute of Urban Studies, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China
- Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai 200234, P. R. China
| | - Yaojen Tu
- School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, P. R. China
| | - Shuguang Liu
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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Micutz M, Circu V, Ilis M, Staicu T. Novel Gemini Surfactant for Binding Eu(III)-Polyoxometalate into Hydrogels and Polymer Latexes. Gels 2022; 8. [PMID: 36547310 DOI: 10.3390/gels8120786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/02/2022] Open
Abstract
The incorporation of rare-earth ions into polymer matrices can lead to useful materials in various fields such as biomarkers, lasers, luminescent devices, optical storage materials, and so on. Methods of incorporation are either extremely simple, such as mixing the polymer and the ion of interest in adequate solvents, or more sophisticated such as synthesizing predesigned monomers that contain the rare-earth ion or binding the ion on an already formed polymer chain. Cationic gemini surfactants represent a class of surfactants that can be used to incorporate metal-oxygen cluster compounds by means of strong electrostatic interactions. In this study, first, a novel cationic gemini surfactant having double bonds on both side chains was designed and prepared. After characterization, the surfactant was used to synthesize hydrogels with different degrees of crosslinking and also as a surfmer in emulsion polymerization of methyl methacrylate. The resulted polymer matrices were able to bind europium-polyoxometalate Na9[EuW10O36].32H2O. In case of luminescent lanthanide ions, changing the microenvironment around the metal ion also changes the intensity of some emission peaks as well as other luminescent parameters. Investigation of emission spectra of Eu3+ indicates a decrease in the symmetry of the microenvironment, when the polyanions pass from water to latex, to surfactant solution, and to hydrogel.
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Giráldez-Pérez RM, Grueso EM, Jiménez-Aguayo R, Carbonero A, González-Bravo M, Kuliszewska E, Prado-Gotor R. Use of Nanoparticles to Prevent Resistance to Antibiotics-Synthesis and Characterization of Gold Nanosystems Based on Tetracycline. Pharmaceutics 2022; 14. [PMID: 36145689 DOI: 10.3390/pharmaceutics14091941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/03/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
Antimicrobial resistance (AMR) is a serious public health problem worldwide which, according to the World Health Organization (WHO), requires research into new and more effective drugs. In this work, both gold nanoparticles covered with 16-3-16 cationic gemini surfactant (Au@16-3-16) and DNA/tetracycline (DNA/TC) intercalated complexes were prepared to effectively transport tetracycline (TC). Synthesis of the Au@16-3-16 precursor was carried out by using trihydrated gold, adding sodium borohydride as a reducing agent and the gemini surfactant 16-3-16 as stabilizing agent. Circular dichroism and atomic force microscopy techniques were then used to ascertain the optimal R range of the relationship between the concentrations of Au@16-3-16 and the DNA/TC complex (R = CAu@16-3-16/CDNA) that allow the obtainment of stable and compact nanosystems, these characteristics being fundamental for their use as antibiotic transporters. Stability studies over time were carried out for distinct selected Au@16-3-16 and Au@16-3-16/DNA-TC nanoformulations using the ultraviolet−visible spectrophotometry technique, checking their stability for at least one month. In addition, in order to know the charge and size distribution of the nanocomplexes, DLS and zeta potential measurements were performed in the solution. The results showed that the characterized nanosystems were highly charged, stable and of a reduced size (<100 nm) that allows them to cross bacterial membranes effectively (>1 μm). Once the different physicochemical characteristics of the gold nanosystems were measured, Au@16-3-16 and Au@16-3-16/DNA-TC were tested on Escherichia coli and Staphylococcus aureus to study their antibacterial properties and internalization capacity in microbes. Differences in the interaction of the precursors and the compacted nanosystems generated were observed in Gram-positive and Gram-negative bacteria, possibly due to membrane damage or electrostatic interaction with internalization by endocytosis. In the internalization experiments, depending on the treatment application time, the greatest bacterial destruction was observed for all nanoformulations explored at 18 h of incubation. Importantly, the results obtained demonstrate that both new nanosystems based on TC and Au@16-3-16 precursors have optimal antimicrobial properties and would be beneficial for use in patients, avoiding possible side effects.
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Narsineni L, Rao PPN, Pham AT, Foldvari M. Peptide-Modified Gemini Surfactants as Delivery System Building Blocks with Dual Functionalities for Glaucoma Treatment: Gene Carriers and Amyloid-Beta (Aβ) Self-Aggregation Inhibitors. Mol Pharm 2022; 19:2737-2753. [PMID: 35802484 DOI: 10.1021/acs.molpharmaceut.2c00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Retinal ganglion cell (RGC) neurodegeneration in glaucoma has potential links with amyloid-β (Aβ) deposition. Targeting the Aβ pathway was shown to reduce RGC apoptosis and protect RGCs from degeneration. We report exploratory studies on the amyloid Aβ40 aggregation inhibition properties of four cell adhesion peptide (CAP)-gemini surfactants that are intended as building blocks for gene carrier nanoparticles for glaucoma treatment. The CAP-gemini surfactants (18-7N(p1-4)-18) were evaluated as potential Aβ40 peptide aggregation inhibitors by a fluorescence kinetic assay and for their binding interactions with Aβ40 dimers by molecular docking studies. In vitro Aβ40 peptide aggregation inhibition studies showed that the 18-7N(p3)-18 and 18-7N(p1)-18 ligands inhibit Aβ40 peptide aggregation and prevent the formation of higher order structures. CDOCKER energies and CDOCKER interaction energies demonstrated that the CAP-gemini surfactants formed more stable complexes in the Aβ40 dimer assembly and underwent both polar and nonpolar interactions compared to CAP peptides alone. Also, 18-7N(p3)-18 showed a significantly lower CDOCKER energy compared to that of the unmodified gemini surfactant 18-7NH-18 (p < 0.0001) and 18-7N(p4)-18 (p < 0.001), 18-7N(p1)-18, and 18-7N(p2)-18. Similarly, 18-7N(p3)-18 showed a significantly lower CDOCKER interaction energy compared to that of 18-7NH-18, 18-7N(p4)-18 (p < 0.0001), and 18-7N(p2)-18 (p < 0.001), while 18-7N(p3)-18 and 18-7N(p1)-18 showed similar CDOCKER interaction energies. These studies suggest that a combination of both hydrophobic and electrostatic interactions contributes to the anti-Aβ40 aggregation activity of CAP-gemini surfactants. CAP-gemini surfactants showed 10-fold better Aβ40 peptide aggregation inhibition compared to previously reported values and could provide a new opportunity for glaucoma treatment as dual-functional gene carriers.
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11
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Tian M, Chen X, Zou X, Qian Y, Liu Z, Fan Y. pH-Responsive Rheological Properties and Microstructure Transition in Mixture of Anionic Gemini/Cationic Monomeric Surfactants. Molecules 2021; 26:molecules26165013. [PMID: 34443601 PMCID: PMC8400210 DOI: 10.3390/molecules26165013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 11/22/2022] Open
Abstract
Surfactant aggregates have long been considered as a tool to improve drug delivery and have been widely used in medical products. The pH-responsive aggregation behavior in anionic gemini surfactant 1,3-bis(N-dodecyl-N-propanesulfonate sodium)-propane (C12C3C12(SO3)2) and its mixture with a cationic monomeric surfactant cetyltrimethylammonium bromide (CTAB) have been investigated. The spherical-to-wormlike micelle transition was successfully realized in C12C3C12(SO3)2 through decreasing the pH, while the rheological properties were perfectly enhanced for the formation of wormlike micelles. Especially at 140 mM and pH 6.7, the mixture showed high viscoelasticity, and the maximum of the zero-shear viscosity reached 1530 Pa·s. Acting as a sulfobetaine zwitterionic gemini surfactant, the electrostatic attraction, the hydrogen bond and the short spacer of C12C3C12(SO3)2 molecules were all responsible for the significant micellar growth. Upon adding CTAB, the similar transition could also be realized at a low pH, and the further transformation to branched micelles occurred by adjusting the total concentration. Although the mixtures did not approach the viscosity maximum appearing in the C12C3C12(SO3)2 solution, CTAB addition is more favorable for viscosity enhancement in the wormlike-micelle region. The weakened charges of the headgroups in a catanionic mixed system minimizes the micellar spontaneous curvature and enhances the intermolecular hydrogen-bonding interaction between C12C3C12(SO3)2, facilitating the formation of a viscous solution, which would greatly induce entanglement and even the fusion of wormlike micelles, thus resulting in branched microstructures and a decline of viscosity.
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Affiliation(s)
- Maozhang Tian
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Xi Chen
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Xinyuan Zou
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Yuchen Qian
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China; (M.T.); (X.C.); (X.Z.); (Y.Q.)
| | - Zhang Liu
- CAS Key Laboratory of Colloid, Interface Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Correspondence: (Z.L.); (Y.F.)
| | - Yaxun Fan
- CAS Key Laboratory of Colloid, Interface Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Correspondence: (Z.L.); (Y.F.)
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12
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Sanchez-Salazar E, Vazquez-Velez E, Uruchurtu J, Porcayo-Calderon J, Casales M, Rosales-Cadena I, Lopes-Cecenes R, Gonzalez-Rodriguez JG. Use of a Gemini-Surfactant Synthesized from the Mango Seed Oil as a CO 2-Corrosion Inhibitor for X-120 Steel. Materials (Basel) 2021; 14:ma14154206. [PMID: 34361400 PMCID: PMC8347954 DOI: 10.3390/ma14154206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/08/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022]
Abstract
A gemini surfactant imidazoline type, namely N-(3-(2-fatty-4,5-dihydro-1H-imidazol-1-yl) propyl) fatty amide, has been obtained from the fatty acids contained in the mango seed and used as a CO2 corrosion inhibitor for API X-120 pipeline steel. Employed techniques involved potentiodynamic polarization curves, linear polarization resistance, and electrochemical impedance spectroscopy. These tests were supported by detailed scanning electronic microscopy (SEM) and Raman spectroscopy studies. It was found that obtained gemini surfactant greatly decreases the steel corrosion rate by retarding both anodic and cathodic electrochemical reactions, with an efficiency that increases with an increase in its concentration. Gemini surfactant inhibits the corrosion of steel by the adsorption mechanism, and it is adsorbed on to the steel surface according to a Langmuir model in a chemical type of adsorption. SEM and Raman results shown the presence of the inhibitor on the steel surface.
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Affiliation(s)
- E. Sanchez-Salazar
- Engineering and Applied Sciences Research Center, Autonomus University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico; (E.S.-S.); (J.U.); (J.P.-C.); (I.R.-C.)
| | - E. Vazquez-Velez
- Institute of Physical Science, National University Autonomous of Mexico, Mazatlán 82000, Mexico; (E.V.-V.); (M.C.)
| | - J. Uruchurtu
- Engineering and Applied Sciences Research Center, Autonomus University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico; (E.S.-S.); (J.U.); (J.P.-C.); (I.R.-C.)
| | - J. Porcayo-Calderon
- Engineering and Applied Sciences Research Center, Autonomus University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico; (E.S.-S.); (J.U.); (J.P.-C.); (I.R.-C.)
- Metalurgy and Chemical Engineering Department, Sonora University, Hermosillo, Sonora 83000, Mexico
| | - M. Casales
- Institute of Physical Science, National University Autonomous of Mexico, Mazatlán 82000, Mexico; (E.V.-V.); (M.C.)
| | - I. Rosales-Cadena
- Engineering and Applied Sciences Research Center, Autonomus University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico; (E.S.-S.); (J.U.); (J.P.-C.); (I.R.-C.)
| | - R. Lopes-Cecenes
- Chemical Science and Engineering Faculty, Autonomous University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico;
| | - J. G. Gonzalez-Rodriguez
- Engineering and Applied Sciences Research Center, Autonomus University of Morelos Sate, AV. Universidad 1001, Cuernavaca 62209, Mexico; (E.S.-S.); (J.U.); (J.P.-C.); (I.R.-C.)
- Correspondence:
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Ghaderi S, Babaei E, Hussen BM, Mahdavi M, Azeez HJ. Gemini Curcumin Suppresses Proliferation of Ovarian Cancer OVCAR-3 Cells via Induction of Apoptosis. Anticancer Agents Med Chem 2021; 21:775-781. [PMID: 32767955 DOI: 10.2174/1871520620666200807223340] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 03/29/2020] [Revised: 07/12/2020] [Accepted: 07/14/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Ovarian cancer has the highest mortality rate among gynecological malignancies. Despite recent advances in treatment, most patients still suffer from poor prognosis. Curcumin has shown highly cytotoxic effects against different types of cancer. However, its poor bioavailability restricts its clinical application. Gemini Curcumin (Gemini-Cur) has been developed to overcome this limitation. OBJECTIVE Here, we aimed to unravel the inhibitory effect of Gemini-Cur in ovarian cancer. METHODS OVCAR-3 cells were treated with free curcumin and Gemni-Cur in a time- and dose-dependent manner. Then, the anticancer activity was investigated by uptake kinetics, cellular viability and apoptotic assays. Furthermore, we evaluated the BAX/Bcl-2 expression ratio by real-time PCR and western blotting. RESULTS Our data showed that gemini surfactant nanoparticles enhance the cellular uptake of curcumin compared to free curcumin (p<0.01). Regarding the growth inhibitory effect of nano-curcumin, the results demonstrated that Gemini-Cur suppresses the proliferation of OVCAR-3 cells through induction of apoptosis (p<0.001). CONCLUSION The results illustrate that Gemini-Cur nanoparticles have a great potential for developing novel therapeutics against ovarian cancer.
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Affiliation(s)
- Sonbol Ghaderi
- Department of Animal Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Esmaeil Babaei
- Department of Animal Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Bashdar M Hussen
- Medical Research Center, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Majid Mahdavi
- Institute of Environment, University of Tabriz, Tabriz, Iran
| | - Hewa J Azeez
- Department of Animal Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran
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14
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Liese D, Wenk HH, Lu X, Kleinen J, Haberhauer G. Dirhamnolipid ester - formation of reverse wormlike micelles in a binary (primerless) system. Beilstein J Org Chem 2020; 16:2820-2830. [PMID: 33281985 PMCID: PMC7684688 DOI: 10.3762/bjoc.16.232] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/04/2020] [Indexed: 11/23/2022] Open
Abstract
We report new dirhamnolipid ester forming reverse wormlike micelles in nonpolar solvents without the addition of any primer. Therefore, these compounds represent a rare case of a binary system showing this gel-like behavior. In this study, the influence of the concentration of the rhamnolipid ester and the ester alkyl chain length on the rheological properties of the reverse wormlike micelles in toluene was investigated in detail. Highly viscoelastic solutions were obtained even at a relatively low concentration of less than 1 wt %. The phase transition temperatures indicate that the formation of reverse wormlike micelles is favored for dirhamnolipid esters with shorter alkyl chain lengths. Oscillatory shear measurements for the viscoelastic samples reveal that the storage modulus (G') and the loss modulus (G'') cross each other and fit the Maxwell model very well in the low-ω region. As is typical for wormlike micelle systems, the normalized Cole-Cole plot of G''/G'' max against G'/G'' max was obtained as a semicircle centered at G'/G'' max = 1. The formation of network structures was also verified by polarized light microscopy. The sample was birefringent at ambient temperature and anisotropic at an elevated temperature. Differential scanning calorimetry analysis yielded a transition enthalpy of about ΔH SG/GS = ±7.2 kJ/mol. This value corresponds to a strong dispersion energy and explains the formation of the highly viscous gels by the entanglement of wormlike micelles through the interaction of the alkyl chains.
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Affiliation(s)
- David Liese
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, D-45117 Essen, Germany
| | - Hans Henning Wenk
- Evonik Operations GmbH, Evonik Industries AG, Goldschmidtstraße 100, D-45139 Essen, Germany
| | - Xin Lu
- Evonik Operations GmbH, Evonik Industries AG, Goldschmidtstraße 100, D-45139 Essen, Germany
| | - Jochen Kleinen
- Evonik Operations GmbH, Evonik Industries AG, Goldschmidtstraße 100, D-45139 Essen, Germany
| | - Gebhard Haberhauer
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, D-45117 Essen, Germany
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Abstract
We studied the physicochemical properties of 1:1 stoichiometric complexes of acylglutamic acids (CnGlu) with tertiary alkylamines (CnDMA) in water at their low and high concentrations. Static surface tensiometry suggested that the critical micelle concentration (cmc) decreased with increasing hydrophobic chain length of the complexes. In addition, CnGlu-CnDMA yielded lower cmc than the C12Glu single system. In the region of high concentrations, several phase states including isotropic liquid (L1) phase, hexagonal liquid crystal (H1) phase, bicontinuous cubic liquid crystal (V1) phase, and lamellar liquid crystal (Lα) phase were observed. Assemblies with lesser positive curvature tend to be formed with increasing complex concentration, increasing temperature, and increasing hydrophobic chain length. Additionally, the complex formation resulted in the molecular assemblies with lesser positive curvature.
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Affiliation(s)
- Ryo Yoshikawa
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
| | - Masaaki Akamatsu
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
| | - Kenichi Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science.,Research Institute for Science and Technology, Tokyo University of Science
| | - Hideki Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science.,Research Institute for Science and Technology, Tokyo University of Science
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Narsineni L, Foldvari M. Dicationic Amino Substituted Gemini Surfactants and their Nanoplexes: Improved Synthesis and Characterization of Transfection Efficiency and Corneal Penetration In Vitro. Pharm Res 2020; 37:144. [PMID: 32666411 DOI: 10.1007/s11095-020-02836-6] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 04/29/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE To formulate and characterize nanoparticles from m-7NH-m gemini surfactants, synthesized by a new improved method, for non-invasive gene delivery including optimization of composition for transfection efficiency and corneal penetration. METHODS A one-pot, solvent-free, DMAP-free method was developed for the synthesis of m-7NH-m (m = 12-18) gemini surfactant series. Lipoplexes (LPXs) and nanoplexes (NPXs) of gemini surfactant-plasmid DNA were formulated with and without DOPE helper lipid, respectively, at various charge ratios and characterized by dynamic light scattering and zeta potential measurements. Transfection efficiency, cellular toxicity, effect of DOPE and gene expression kinetic studies were carried out in A7 astrocytes by flow cytometry and confocal microscopy. Corneal penetration studies of 18-7NH-18 NPXs were carried out using 3D EpiCorneal® tissue model. RESULTS The new synthesis method provides a two-fold improved yield and the production of a pure species of m-7NH-m without DMAP and trimeric m-7N(m)-m surfactants as impurities. Structure and purity was confirmed by ESI-MS, 1H NMR spectroscopy and surface tension measurements. Particle size of 199.80 ± 1.83 nm ± S.D. and a zeta potential value of +30.18 ± 1.17 mV ± S.D. was obtained for 18-7NH-18 5:1 ratio NPXs showed optimum transfection efficiency (10.97 ± 0.11%) and low toxicity (92.97 ± 0.57% viability) at the 48-h peak expression. Inclusion of DOPE at 1: 0.5 and 1:1 ratios to gemini surfactant reduced transfection efficiency and increased toxicity. Treatment of EpiCorneal® tissue model showed deep penetration of up to 100 μm with 18-7NH-18 NPXs. CONCLUSION Overall, 18-7NH-18 NPXs are potential gene delivery systems for ophthalmic gene delivery and for further in vivo studies.
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Affiliation(s)
- Lokesh Narsineni
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marianna Foldvari
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada. .,School of Pharmacy, Center for Bioengineering and Biotechnology, Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada.
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Hassan A, Mahmoud M, Kamal MS, Hussain SMS, Patil S. Novel Treatment for Mitigating Condensate Bank Using a Newly Synthesized Gemini Surfactant. Molecules 2020; 25:molecules25133030. [PMID: 32630778 PMCID: PMC7412374 DOI: 10.3390/molecules25133030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/01/2020] [Accepted: 07/01/2020] [Indexed: 11/30/2022] Open
Abstract
Condensate accumulation in the vicinity of the gas well is known to curtail hydrocarbon production by up to 80%. Numerous approaches are being employed to mitigate condensate damage and improve gas productivity. Chemical treatment, gas recycling, and hydraulic fracturing are the most effective techniques for combatting the condensate bank. However, the gas injection technique showed temporary condensate recovery and limited improvement in gas productivity. Hydraulic fracturing is considered to be an expensive approach for treating condensate banking problems. In this study, a newly synthesized gemini surfactant (GS) was developed to prevent the formation of condensate blockage in the gas condensate reservoirs. Flushing the near-wellbore area with GS will change the rock wettability and thereby reduce the capillary forces holding the condensate due to the strong adsorption capacity of GS on the rock surface. In this study, several measurements were conducted to assess the performance of GS in mitigating the condensate bank including coreflood, relative permeability, phase behavior, and nuclear magnetic resonance (NMR) measurements. The results show that GS can reduce the capillary pressure by as much as 40%, increase the condensate mobility by more than 80%, and thereby mitigate the condensate bank by up to 84%. Phase behavior measurements indicate that adding GS to the oil–brine system could not induce any emulsions at different salinity levels. Moreover, NMR and permeability measurements reveal that the gemini surfactant has no effect on the pore system and no changes were observed in the T2 relaxation profiles with and without the GS injection. Ultimately, this work introduces a novel and effective treatment for mitigating the condensate bank. The new treatment showed an attractive performance in reducing liquid saturation and increasing the condensate relative permeability.
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Affiliation(s)
- Amjed Hassan
- Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;
| | - Mohamed Mahmoud
- Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;
- Correspondence: (M.M.); (S.P.); Tel.: +966-13-860-2305 (S.P.)
| | - Muhammad Shahzad Kamal
- Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (M.S.K.); (S.M.S.H.)
| | - Syed Muhammad Shakil Hussain
- Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; (M.S.K.); (S.M.S.H.)
| | - Shirish Patil
- Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;
- Correspondence: (M.M.); (S.P.); Tel.: +966-13-860-2305 (S.P.)
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18
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Kumar D, Rub MA, Asiri AM. Synthesis and characterization of geminis and implications of their micellar solution on ninhydrin and metal amino acid complex. R Soc Open Sci 2020; 7:200775. [PMID: 32874661 PMCID: PMC7428287 DOI: 10.1098/rsos.200775] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/02/2020] [Indexed: 05/12/2023]
Abstract
In our study, three gemini dicationic surfactants with different methylene group spacer (16-6-16, 16-5-16 and 16-4-16) have been synthesized and characterized in solution by 1H NMR spectroscopic technique. The implications of gemini micellar solution on ninhydrin and metal amino acid complex ([Cu(II)-Trp]+) were performed by the means of single-beam UV-visible spectroscopy. The absorbance was noted at regular time intervals and values of rate constant (kψ ) were determined by using a computer-based program. Synthesized surfactants proved as an efficient catalyst on the interaction of ninhydrin with metal amino acid complex as compared with conventional surfactant and aqueous systems. The required description regarding the implications of gemini dicationic surfactants are provided in the text in detail. The conductivity technique was applied in order to get critical micelle concentration (cmc) of geminis in the presence and absence of reactants. Catalytic results developed in gemini dicationic surfactant system were explained effectively by pseudo-phase model. Various thermodynamic quantities, viz., activation energy, E a, activation enthalpy, ΔH #, and activation entropy, ΔS #, were obtained on interaction of ninhydrin with [Cu(II)-Trp]+ in gemini systems by applying Eyring equation. A detailed explanation about these evaluated parameters was also made.
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Affiliation(s)
- Dileep Kumar
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Malik Abdul Rub
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Ideguchi H, Takasaki Y, Kondo S, Nakanose M, Teradahira N, Yamamoto Y, Mouri U, Nakahara H. Solubilization of Progesterone and its Derivatives into Gemini Surfactant Solutions. J Oleo Sci 2020; 69:557-562. [PMID: 32404550 DOI: 10.5650/jos.ess20007] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The solubilization of poorly water-soluble progesterone derivatives into micelles of a gemini surfactant was investigated in an aqueous medium. The aqueous solubility at different temperatures was determined spectroscopically using an ultraviolet visible light spectrophotometer. Thermodynamic parameters for the solubilization were calculated under the basis of the solubility change against temperature. The solubility of progesterone was quite low and remained constant below the critical micelle concentration (cmc) of the surfactant. On the other hand, the solubility increased considerably with increasing surfactant concentration above the cmc. It was suggested that the solubilizates were located in the vicinity of polar regions of micelles.
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Affiliation(s)
- Hiroki Ideguchi
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Yuya Takasaki
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Shintaro Kondo
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Mai Nakanose
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Nana Teradahira
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Yumeka Yamamoto
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
| | - Umi Mouri
- Department of Industrial Pharmacy, Daiichi University of Pharmacy
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Dedovets D, Martin B, Okazaki Y, Buffeteau T, Pouget E, Oda R. Hierarchical chirality expression of gemini surfactant aggregates via equilibrium between chiral nucleotide and nonchiral mono-anions. Chirality 2020; 32:949-960. [PMID: 32346925 DOI: 10.1002/chir.23230] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/24/2020] [Accepted: 04/01/2020] [Indexed: 11/06/2022]
Abstract
The assembling behaviors of nonchiral dicationic amphiphilic molecules (gemini) in the presence of the mixture of chiral anionic nucleotides and nonchiral anions are investigated. We demonstrate that subtle balance of various physico-chemical parameters and the competition between chiral and nonchiral anions at the interface of gemini assemblies influences the expression of molecular chirality at the micrometer scale through the hierarchical molecular assembly.
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Affiliation(s)
- Dmytro Dedovets
- CBMN, UMR 5248, CNRS-Université de Bordeaux-IPB 2 rue Robert Escarpit, Pessac, France.,Laboratoire du Futur, UMR 5258, CNRS-Université de Bordeaux-Solvay 178 avenue du Dr Schweitzer, Pessac, France
| | - Barbara Martin
- CBMN, UMR 5248, CNRS-Université de Bordeaux-IPB 2 rue Robert Escarpit, Pessac, France
| | - Yutaka Okazaki
- CBMN, UMR 5248, CNRS-Université de Bordeaux-IPB 2 rue Robert Escarpit, Pessac, France.,School of Energy Science, Kyoto University, Kyoto, Japan
| | - Thierry Buffeteau
- ISM, UMR 5255, CNRS-Université de Bordeaux, 351 Cours de la Libération, Talence, France
| | - Emilie Pouget
- CBMN, UMR 5248, CNRS-Université de Bordeaux-IPB 2 rue Robert Escarpit, Pessac, France
| | - Reiko Oda
- CBMN, UMR 5248, CNRS-Université de Bordeaux-IPB 2 rue Robert Escarpit, Pessac, France
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Pisárčik M, Pupák M, Lukáč M, Devínsky F, Hubčík L, Bukovský M, Horváth B. The Synthesis, Self-Assembled Structures, and Microbicidal Activity of Cationic Gemini Surfactants with Branched Tridecyl Chains. Molecules 2019; 24:molecules24234380. [PMID: 31801214 PMCID: PMC6930597 DOI: 10.3390/molecules24234380] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 01/08/2023] Open
Abstract
Cationic gemini surfactants with polymethylene spacer and linear alkyl chains containing an even number of carbon atoms have been extensively studied in the recent past, with the emphasis put on the determination of their aggregation behaviour in aqueous solution and their biological properties. However, the information on the aggregation of branched gemini surfactants with an odd number of carbon atoms in their alkyl chains is only sparsely reported in the literature. To help cover this gap in the research of cationic gemini surfactants, a series of branched bisammonium cationic gemini surfactants with an odd number of carbon atoms in alkyl chains (tridecane-2-yl chains) and a polymethylene spacer with a variable length ranging from 3 to 12 carbon atoms have been synthesized and investigated. Critical micelle concentration, which was determined by three methods, was found to be in the order 10-4 mol/L. A comparison of the obtained data of the novel series of tridecyl chain geminis with those of gemini surfactants with dodecyl chains and an identical spacer structure revealed that structural differences between both series of gemini surfactants result in different aggregation and surface properties for surfactants with 6 and 8 methylene groups in the spacer (N,N'-bis(tridecane-2-yl)-N,N,N',N'-tetramethylhexane-1,6-diaminium dibromide and N,N'-bis(tridecane-2-yl)-N,N,N',N'-tetramethyloctane-1,8-diaminium dibromide) with the cmc values 8.2 × 10-4 mol/L and 6.5 × 10-4 mol/L, respectively, as determined by surface tension measurements. Particle size analysis showed the formation of small stable spherical micelles in the interval between 2.8 and 5 nm and with zeta potential around +50 mV, which are independent of surfactant concentration and increase with the increasing spacer length. Microbicidal activity of 13-s-13 gemini surfactants was found to be efficient against Gram-positive, Gram-negative bacteria and yeast.
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Affiliation(s)
- Martin Pisárčik
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, SK-83232 Bratislava, Slovakia;
- Correspondence:
| | - Matúš Pupák
- State Institute for Drug Control, SK-82508 Bratislava, Slovakia;
| | - Miloš Lukáč
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, SK-83232 Bratislava, Slovakia;
| | | | - Lukáš Hubčík
- Department of Physical Chemistry of Drugs, Faculty of Pharmacy, Comenius University, SK-83232 Bratislava, Slovakia;
| | - Marián Bukovský
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University, SK-83232 Bratislava, Slovakia;
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Tian Q, Lai L, Zhou Z, Mei P, Lu Q, Wang Y, Xiang D, Liu Y. Interaction Mechanism of Different Surfactants with Casein: A Perspective on Bulk and Interfacial Phase Behavior. J Agric Food Chem 2019; 67:6336-6349. [PMID: 31117492 DOI: 10.1021/acs.jafc.9b00969] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Understanding the interaction mechanism between proteins and surfactants is conducive to the application of protein/surfactant mixtures in the food industry. The present study investigated the interaction mechanism of casein with cationic Gemini surfactant (BQAS), anionic Gemini surfactant (SGS), anionic single-chain surfactant (sodium dodecyl sulfate [SDS]), and two biosurfactants (rhamnolipid [RL] and lactone sophorolipid [SL]) at the interface and in bulk phase. BQAS/casein and SDS/casein mixtures exhibit a strong synergistic effect on the surface activity. For SGS, RL, and SL, the formation of surfactant/casein complexes caused no improvement in surface activity. Dilational elasticity results indicate the displacement of casein by SGS, RL, and SL at the surface. However, the BQAS/casein complexes manifested varying dilational properties from pure casein surface. The strong electrostatic interaction between BQAS and casein produced large-size precipitate particles. For other surfactants, no precipitate particles formed. Determination of ζ-potential, UV-vis absorption spectra, and fluorescence spectra demonstrated the stronger interaction of BQAS and SDS with casein than that of SGS, RL, and SL. Addition of BQAS initially increased and then decreased the α-helix structure of casein. For SGS, RL, and SL, no noticeable change occurred in the casein structure. However, the formation of SDS/casein complexes was conducive to the casein structure. In conclusion, the interaction between BQAS and casein is similar to that of cationic single-chain surfactant. Furthermore, SGS exhibits a significantly different interaction mechanism from the corresponding monomer (SDS), possibly resulting from its excellent interfacial activity, low critical micelle concentration values, and strong self-assembly capability. For RL and SL, the weak interaction is attributed to the relatively complicated structure and less charged degree of hydrophilic headgroups.
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Affiliation(s)
- Qing Tian
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P. R. China
| | - Lu Lai
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P. R. China
- Department of Chemical and Petroleum Engineering , University of Calgary , Calgary T2N 1N4 , Canada
| | - Zhiqiang Zhou
- College of Chemistry and Material Sciences , Guangxi Teachers Education University , Nanning 530001 , P. R. China
| | - Ping Mei
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P. R. China
| | - Qingye Lu
- Department of Chemical and Petroleum Engineering , University of Calgary , Calgary T2N 1N4 , Canada
| | - Yanqun Wang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P. R. China
| | - Dong Xiang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P. R. China
| | - Yi Liu
- College of Chemistry and Material Sciences , Guangxi Teachers Education University , Nanning 530001 , P. R. China
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , P. R. China
- Key Laboratory of Coal Conversion and Carbon Materials of Hubei Province, College of Chemistry and Chemical Engineering , Wuhan University of Science and Technology , Wuhan 430081 , P. R. China
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Pisárčik M, Polakovičová M, Markuliak M, Lukáč M, Devínsky F. Self-Assembly Properties of Cationic Gemini Surfactants with Biodegradable Groups in the Spacer. Molecules 2019; 24:molecules24081481. [PMID: 30991746 PMCID: PMC6514795 DOI: 10.3390/molecules24081481] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/10/2019] [Accepted: 04/13/2019] [Indexed: 11/16/2022] Open
Abstract
: Self-assembly properties of cationic gemini surfactants with biodegradable amide or ester groups in the spacer were investigated utilising time-resolved fluorescence quenching, dynamic light scattering and zeta potential measurements. A correlation between aggregation parameters such as micelle aggregation number, micelle size and zeta potential with the structure of gemini molecules was made. For gemini molecules with medium spacer lengths, micelle aggregation number does not change much with the surfactant concentration. When the spacer is extended, a stronger aggregation tendency is observed for gemini surfactant molecules with two ester groups in the spacer and the aggregation number increases. The assumption of stronger aggregation of ester-based gemini molecules at larger spacer number values is also documented by measurements of the size and zeta potential of ester-based micelles. The explanation of the difference in aggregation ability of amide-based and ester-based gemini molecules is related to the structural features of gemini molecules, notably to the larger flexibility and denser arrangement of ester-based gemini molecules in a micelle. To support this assumption, optimised 3D models of the studied gemini molecules were constructed. Correspondingly, the calculations show smaller size and interfacial area for ester-based gemini conformers.
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Affiliation(s)
- Martin Pisárčik
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, 83232 Bratislava, Slovakia.
| | - Mája Polakovičová
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University, Odbojárov 10, 83232 Bratislava, Slovakia.
| | - Mário Markuliak
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, 83232 Bratislava, Slovakia.
| | - Miloš Lukáč
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, 83232 Bratislava, Slovakia.
| | - Ferdinand Devínsky
- Faculty of Pharmacy, Comenius University, Odbojárov 10, 83232 Bratislava, Slovakia.
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Alama T, Kusamori K, Morishita M, Katsumi H, Sakane T, Yamamoto A. Mechanistic Studies on the Absorption-Enhancing Effects of Gemini Surfactant on the Intestinal Absorption of Poorly Absorbed Hydrophilic Drugs in Rats. Pharmaceutics 2019; 11:E170. [PMID: 30959978 DOI: 10.3390/pharmaceutics11040170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/28/2019] [Accepted: 03/28/2019] [Indexed: 11/16/2022] Open
Abstract
Generally, the use of absorption enhancers might be the most effective approaches to ameliorate the enteric absorption of poorly absorbed substances. Among numerous absorption enhancers, we already reported that a gemini surfactant, sodium dilauramidoglutamide lysine (SLG-30) with two hydrophobic and two hydrophilic moieties, is a novel and promising adjuvant with a high potency in improving the absorption safely. Here, we examined and elucidated the absorption-improving mechanisms of SLG-30 in the enteric absorption of substances. SLG-30 increased the intestinal absorption of 5(6)-carboxyfluorescein (CF) to a greater level than the typical absorption enhancers, including sodium glycocholate and sodium laurate, as evaluated by an in situ closed-loop method. Furthermore, SLG-30 significantly lowered the fluorescence anisotropy of dansyl chloride (DNS-Cl), suggesting that it might increase the fluidity of protein sections in the intestinal cell membranes. Moreover, SLG-30 significantly lowered the transepithelial-electrical resistance (TEER) values of Caco-2 cells, suggesting that it might open the tight junctions (TJs) between the enteric epithelial cells. Additionally, the levels of claudin-1 and claudin-4 expression decreased in the presence of SLG-30. These outcomes propose that SLG-30 might improve the enteric transport of poorly absorbed substances through both transcellular and paracellular routes.
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Hajdu I, Makhlouf A, Solomon VR, Michel D, Al-Dulaymi M, Wasan KM, Fonge H, Badea I. A 89Zr-labeled lipoplex nanosystem for image-guided gene delivery: design, evaluation of stability and in vivo behavior. Int J Nanomedicine 2018; 13:7801-7818. [PMID: 30538460 PMCID: PMC6257135 DOI: 10.2147/ijn.s179806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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] [Indexed: 12/16/2022] Open
Abstract
Background With the advances in radiopharmaceutical research, the development of image-guided therapy has become a major interest. While the development of theranostic nanotherapeutics is frequently associated with cancer chemotherapy, phototherapy and radiotherapy, there is little information available on the in vivo monitoring of gene delivery systems and the application of image-guided approach in gene therapy. The goal of this work was to determine the in vivo behavior of DNA delivery nanosystems - based on cationic gemini surfactants – designed for image-guided gene therapy. We tested the feasibility of monitoring tumor accumulation of gene delivery nanoparticles by positron emission tomography. Methods To be able to conjugate radiotracers to the nanoparticles, a deferoxamine-modified gemini surfactant was synthesized, DNA-containing lipoplex nanoparticles were formulated, and radiolabeled with Zirconium-89 (89Zr). The pharmacokinetics and biodistribution of 89Zr labeled surfactant and 89Zr labeled nanoparticles were monitored in mice by microPET/CT imaging and ex vivo gamma counting. Results Modification of the nanoparticles with deferoxamine did not alter their physicochemical properties. The radiolabeled nanoparticles (labeling efficiency of 95±3%) were stable in PBS and serum. The biological half-life of the 89Zr labeled nanoparticles was significantly higher compared to 89Zr labeled surfactant. As expected, the nanoparticles had significantly higher liver accumulation than the radiolabeled surfactant alone and lower kidney accumulation. Tumor uptake was detected at 2 hours post injection and decreased throughout the 3-day monitoring. Conclusion We propose that radiolabeling DNA delivery lipoplex nanosystems is a promising approach for the design and optimization of image-guided nanomedicines, especially in the context of cancer gene therapy.
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Affiliation(s)
- Istvan Hajdu
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada,
| | - Amal Makhlouf
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada, .,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, 12411 Cairo, Egypt
| | - Viswas Raja Solomon
- Department of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada,
| | - Deborah Michel
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada,
| | - Mays Al-Dulaymi
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada,
| | - Kishor M Wasan
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada,
| | - Humphrey Fonge
- Department of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada, .,Department of Medical Imaging, Royal University Hospital Saskatoon, SK S7N 0W8, Canada,
| | - Ildiko Badea
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada,
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Wang H, Zhao W, Zhou L, Wang J, Liu L, Wang S, Wang Y. Soft Particles of Gemini Surfactant/Conjugated Polymer for Enhanced Anticancer Activity of Chemotherapeutics. ACS Appl Mater Interfaces 2018; 10:37-41. [PMID: 29260846 DOI: 10.1021/acsami.7b16396] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, we developed a kind of novel nontoxic soft particle self-assembled by gemini surfactant (SDHC) and conjugated polymer (PMNT). The soft particle shows strong ability in incorporating into cell membrane, and alters the membrane permeability, especially under light irradiation. The anticancer activities of doxorubicin (DOX) were enhanced 6-9 times after cancer cells were treated with the soft particles under light irradiation. The cell viabilities of three kinds of cancer cells testify that this effect of the soft particles on chemotherapy is universal. This work provides a new strategy to enhance the anticancer activities of drugs.
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Affiliation(s)
- Hua Wang
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Weiwei Zhao
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Lingyun Zhou
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Jianwu Wang
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | | | - Shu Wang
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Yilin Wang
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
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27
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Pisárčik M, Jampílek J, Lukáč M, Horáková R, Devínsky F, Bukovský M, Kalina M, Tkacz J, Opravil T. Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length. Molecules 2017; 22:molecules22101794. [PMID: 29065563 PMCID: PMC6151783 DOI: 10.3390/molecules22101794] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 11/16/2022] Open
Abstract
The present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer of variable length. UV-VIS spectroscopy, dynamic light scattering, scanning electron microscopy and zeta potential measurements were applied to provide physicochemical characterization of the silver nanoparticles. The mean size values of the nanoparticles were found to be in the 50 to 115 nm range. From the nanoparticle size distributions and scanning electron microscopy images it results that a population of small nanoparticles with the size of several nanometers was confirmed if the nanoparticles were stabilized with gemini molecules with either a short methylene spacer (two or four −CH2− groups) or a long spacer (12 −CH2− groups). The average zeta potential value for silver nanoparticles stabilized with gemini molecules is roughly independent of gemini surfactant spacer length and is approx. +58 mV. An interaction model between silver nanoparticles and gemini molecules which reflects the gained experimental data, is suggested. Microbicidal activity determinations revealed that the silver nanoparticles stabilized with gemini surfactants are more efficient against Gram-negative bacteria and yeasts, which has a direct relation to the interaction mechanism of nanoparticles with the bacterial cell membrane and its structural composition.
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Affiliation(s)
- Martin Pisárčik
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Josef Jampílek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University, Bratislava SK-83232, Slovakia.
| | - Miloš Lukáč
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Renáta Horáková
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Ferdinand Devínsky
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
- Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Marián Bukovský
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University, Bratislava SK-83232, Slovakia.
| | - Michal Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
| | - Jakub Tkacz
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
| | - Tomáš Opravil
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
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28
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Yoshimura T, Nyuta K. Dynamic Surface Tension of Hetero gemini Surfactants with Quaternary Ammonium Salt and Gluconamide or Sulfobetaine Headgroups. J Oleo Sci 2017; 66:1139-1147. [PMID: 28924079 DOI: 10.5650/jos.ess17021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dynamic surface tensions of two types of heterogemini surfactants with nonidentical hydrophilic headgroups consisting of a quaternary ammonium salt (cationic) and a gluconamide (nonionic) or sulfobetaine (zwitterionic) group were measured using the maximum bubble pressure method. For these compounds, effects of alkyl chain length, structure of the hydrophilic groups, and surfactant concentration were investigated using diffusion coefficients and parameter x. The parameter x is related to the difference between the energies of adsorption and desorption of the surfactant. The values of x of heterogemini surfactants increased as the alkyl chain length increased, and they were slightly larger than that for the corresponding monomeric surfactant. This is because of an increase in hydrophobicity caused by two alkyl chains, as well as interactions between two different hydrophilic groups. Adsorption rate of the heterogemini surfactants decreased with increasing alkyl chain length, indicating slow dynamics, and inhibited adsorption to the air/water interface as the chain length increased. However, at higher concentrations, the heterogemini surfactants showed rapid and effective adsorption and increased adsorption rates at higher concentrations. Diffusion coefficients of the heterogemini surfactants decreased with increasing concentrations for all chain lengths, indicating diffusion of the solute molecules to the subsurface and adsorption of the solute from the subsurface to the surface.
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Affiliation(s)
| | - Kanae Nyuta
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science
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29
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Sharma VD, Lees J, Hoffman NE, Brailoiu E, Madesh M, Wunder SL, Ilies MA. Modulation of pyridinium cationic lipid-DNA complex properties by pyridinium gemini surfactants and its impact on lipoplex transfection properties. Mol Pharm 2014; 11:545-59. [PMID: 24377350 PMCID: PMC4031282 DOI: 10.1021/mp4005035] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The study presents the effects of blending a cationic gemini surfactant into cationic lipid bilayers and its impact on the plasmid DNA compaction and delivery process. Using nanoDSC, dynamic light scattering, zeta potential, and electrophoretic mobility measurements, together with transfection (2D- and 3D-) and viability assays, we identified the main physicochemical parameters of the lipid bilayers, liposomes, and lipoplexes that are affected by the gemini surfactant addition. We also correlated the cationic bilayer composition with the dynamics of the DNA compaction process and with transfection efficiency, cytotoxicity, and the internalization mechanism of the resultant nucleic acid complexes. We found that the blending of gemini surfactant into the cationic bilayers fluidized the supramolecular assemblies, reduced the amount of positive charge required to fully compact the plasmid DNA and, in certain cases, changed the internalization mechanism of the lipoplexes. The transfection efficiency of select ternary lipoplexes derived from cationic gemini surfactants and lipids was several times superior to the transfection efficiency of corresponding binary lipoplexes, also surpassing standard transfection systems. The overall impact of gemini surfactants into the formation and dynamic of cationic bilayers was found to depend heavily on the presence of colipids, their nature, and amount present in lipoplexes. The study confirmed the possibility of combining the specific properties of pyridinium gemini surfactants and cationic lipids synergistically to obtain efficient synthetic transfection systems with negligible cytotoxicity useful for therapeutic gene delivery.
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Affiliation(s)
- Vishnu Dutt Sharma
- Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 N Broad Street, Philadelphia, PA-19140
| | - Julia Lees
- Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 N Broad Street, Philadelphia, PA-19140
| | - Nicholas E. Hoffman
- Temple University, School of Medicine, Center for Translational Medicine, 3500 N. Broad Street, Philadelphia, PA-19140
| | - Eugen Brailoiu
- Temple University, School of Medicine, Center for Translational Medicine, 3500 N. Broad Street, Philadelphia, PA-19140
| | - Muniswamy Madesh
- Temple University, School of Medicine, Center for Translational Medicine, 3500 N. Broad Street, Philadelphia, PA-19140
| | - Stephanie L. Wunder
- Temple University, College of Science and Technology, Department of Chemistry, 130 Beury Hall, 1901 N. 13 Street, Philadelphia, PA-19122
| | - Marc A. Ilies
- Department of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 N Broad Street, Philadelphia, PA-19140
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