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Wang L, Zhang M, Lawson T, Kanwal A, Miao Z. Poly(butylene succinate- co-salicylic acid) copolymers and their effect on promoting plant growth. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190504. [PMID: 31417748 PMCID: PMC6689653 DOI: 10.1098/rsos.190504] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 06/11/2019] [Indexed: 06/10/2023]
Abstract
Biodegradable random copolymers were successfully synthesized by melt polycondensation of poly(butylene succinate) (PBS) and salicylic acid (SA). The obtained copolymers were characterized by proton nuclear magnetic resonance spectroscopy. The effect of different SA contents on the properties of copolymers was investigated by universal testing machine, thermogravimetric analyser, differential scanning calorimetry and X-ray diffraction analysis. The results showed that the copolymers with 0.5% SA contents exhibited excellent elastic modulus (1413.0 MPa) and tensile strength (192.8 MPa), and similar thermal decomposition temperature (≈320°C) compared with pure PBS. By molecular docking simulations, it was proved that the degradability of copolymers was more effective than that of pure PBS with a binding energy of -5.77 kcal mol-1. PBS copolymers with a small amount of SA were not only biodegradable but could stimulate the growth of green vegetables. So biodegradable copolymers can be used over a wide range as they are environmentally friendly.
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Affiliation(s)
- Lei Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Min Zhang
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
- College of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Tom Lawson
- ARC Centre of Excellence for Nanoscale Biophotonics, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Aqsa Kanwal
- College of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Zongcheng Miao
- Key Laboratory of Organic Polymer Photoelectric Materials, Xijing University, Xi'an 710123, People's Republic of China
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2
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Geraldo VP, Ziglio AC, Gonçalves D, Oliveira ON. Interaction of capsaicinoids with cell membrane models does not correlate with pungency of peppers. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Ceridório LF, Caseli L, Oliveira ON. Chondroitin sulfate interacts mainly with headgroups in phospholipid monolayers. Colloids Surf B Biointerfaces 2016; 141:595-601. [PMID: 26906924 DOI: 10.1016/j.colsurfb.2016.02.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 01/21/2016] [Accepted: 02/11/2016] [Indexed: 12/31/2022]
Abstract
Sulfated glycosaminoglycans are precursors of the extracellular matrix used to treat diseases related to blood clotting and degenerative joint diseases. These medical applications have been well established, but the mode of action at the molecular level, which depends on the interaction with cell membranes, is not known in detail. In this study, we investigated the interaction between chondroitin sulfate (CS) and phospholipid monolayers that mimic cell membranes. From surface pressure isotherms and polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), CS was found to interact mainly with the polar groups of dipalmitoyl phosphatidylcholine (DPPC) and dipalmitoyl phosphatidylglycerol (DPPG), with negligible penetration into the hydrophobic tails and only small changes in monolayer elasticity for the packing corresponding to a real cell membrane. The changes in surface pressure and surface potential isotherms depended on CS concentration and on the time allowed for its adsorption onto the monolayer, which points to a dynamic adsorption-desorption process. The charge of the phospholipid was also relevant, since CS induced order into DPPC monolayers while the opposite occurred for DPPG, according to the PM-IRRAS spectra. In summary, interaction with polar groups is responsible for the CS effects on model cell membranes.
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Affiliation(s)
- Lucinéia F Ceridório
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil.
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil
| | - Osvaldo N Oliveira
- Institute of Physics of São Carlos, University of São Paulo, USP, São Carlos, SP, Brazil
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4
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Endogenous lung surfactant inspired pH responsive nanovesicle aerosols: pulmonary compatible and site-specific drug delivery in lung metastases. Sci Rep 2014; 4:7085. [PMID: 25403950 PMCID: PMC4235800 DOI: 10.1038/srep07085] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/24/2014] [Indexed: 01/13/2023] Open
Abstract
Concerns related to pulmonary toxicity and non-specificity of nanoparticles have limited their clinical applications for aerosol delivery of chemotherapeutics in lung cancer. We hypothesized that pulmonary surfactant mimetic nanoparticles that offer pH responsive release specifically in tumor may be a possible solution to overcome these issues. We therefore developed lung surfactant mimetic and pH responsive lipid nanovesicles for aerosol delivery of paclitaxel in metastatic lung cancer. 100-200 nm sized nanovesicles showed improved fusogenicity and cytosolic drug release, specifically with cancer cells, thereby resulting in improved cytotoxicity of paclitaxel in B16F10 murine melanoma cells and cytocompatibility with normal lung fibroblasts (MRC 5). The nanovesicles showed airway patency similar to that of endogenous pulmonary surfactant and did not elicit inflammatory response in alveolar macrophages. Their aerosol administration while significantly improving the biodistribution of paclitaxel in comparison to Taxol (i.v.), also showed significantly higher metastastes inhibition (~75%) in comparison to that of i.v. Taxol and i.v. Abraxane. No signs of interstitial pulmonary fiborisis, chronic inflammation and any other pulmonary toxicity were observed with nanovesicle formulation. Overall, these nanovesicles may be a potential platform to efficiently deliver hydrophobic drugs as aerosol in metastatic lung cancer and other lung diseases, without causing pulmonary toxicity.
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Serpell CJ, Edwardson TGW, Chidchob P, Carneiro KMM, Sleiman HF. Precision Polymers and 3D DNA Nanostructures: Emergent Assemblies from New Parameter Space. J Am Chem Soc 2014; 136:15767-74. [PMID: 25325677 DOI: 10.1021/ja509192n] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Christopher J. Serpell
- Department of Chemistry and
Centre for Self-assembled Chemical Structures, McGill University, 801
Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Thomas G. W. Edwardson
- Department of Chemistry and
Centre for Self-assembled Chemical Structures, McGill University, 801
Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Pongphak Chidchob
- Department of Chemistry and
Centre for Self-assembled Chemical Structures, McGill University, 801
Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Karina M. M. Carneiro
- Department of Chemistry and
Centre for Self-assembled Chemical Structures, McGill University, 801
Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Hanadi F. Sleiman
- Department of Chemistry and
Centre for Self-assembled Chemical Structures, McGill University, 801
Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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Li Destri G, Miano F, Marletta G. Structure-rheology relationship in weakly amphiphilic block copolymer Langmuir monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3345-3353. [PMID: 24650052 DOI: 10.1021/la4043777] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The linear viscoelastic behavior in the low-frequency regime at the water/air interface of three different polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) copolymer monolayers, with block length ratio varying from 66-33 to 50-50 and 25-75 in molecular units, was studied and related to the interfacial behavior, characterized by means of Langmuir isotherms, and their structure, characterized by means of the atomic force microscopy technique. The two monolayers with the highest PMMA amount showed a single phase transition at about 12 mN/m, the viscoelastic behavior changing from a predominantly elastic to a viscoelastic one. This change in the viscoelastic properties was ascribed to the beginning of entanglement among the PMMA coronas of the predominantly circular quasi-2D micelles formed by the two copolymer systems. Conversely, the polymer with the lowest PMMA amount, despite having the same PMMA block length of the PS-PMMA 50-50 block copolymer, was found to behave as a viscoelastic system at any surface pressure value. This characteristic behavior cannot therefore be simply related to the molecular weight difference, but it has been put in connection to the irregular micelle structure observed in this case, consisting of a mixture of spherical and wormlike micelles, and to the different conformation adopted by the PMMA block. By blending this copolymer with an immiscible elastic homopolymer, namely poly(2-vinylpyridine), it was possible to tune the micelle nanostructure, obtaining regular circular quasi-2D micelles, with viscoelastic properties as expected for the PMMA-rich copolymer monolayers. To the best of our knowledge, this study shows for the first time the explicit dependence upon the relative block length and, in turn, upon the nanostructure of the quasi-2D micelles, of the viscoelastic properties of Langmuir monolayers and suggests that molecular weight and intermolecular interactions are not the only parameters governing the polymer conformation and, in turn, the polymer rheology and dynamics in quasi-2D confined systems.
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Affiliation(s)
- Giovanni Li Destri
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemistry, University of Catania and CSGI , V.le A Doria 6, 95125 Catania, Italy
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Cuomo F, Mosca M, Murgia S, Avino P, Ceglie A, Lopez F. Evidence for the role of hydrophobic forces on the interactions of nucleotide-monophosphates with cationic liposomes. J Colloid Interface Sci 2013; 410:146-51. [PMID: 24011561 DOI: 10.1016/j.jcis.2013.08.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 08/01/2013] [Accepted: 08/02/2013] [Indexed: 11/19/2022]
Abstract
In this work, the interaction of nucleotide-monophosphates (NMPs) with unilamellar liposomes made of 1,2-Dioleoyl-3-Trimethylammonium-Propane (DOTAP) and 1,2-Dioleoyl-sn-Glycero-3-Phosphoethanolamine (DOPE) was investigated. Here, we demonstrate how adsorption is affected by the type of nucleotide-monophosphate. Dynamic light scattering (DLS) results revealed, for each NMP, that a distinguishable concentration exists at which a significant growth of the aggregates occurs. Adenosine 5'-monophosphate (AMP) and guanosine 5'-monophosphate (GMP) have shown a higher propensity to induce liposome aggregation process and in particular GMP appears to be the most effective. From ζ-potential experiments we found that liposomes loaded with purine based nucleotides (AMP and GMP) are able to decrease the ζ-potential values to a greater extent in comparison with the pyrimidine based nucleotides thimydine 5'-monophosphate (TMP) and uridine 5'-monophosphate (UMP). Moreover, a careful analysis of nucleotide-liposome interactions revealed that nucleotides have different capacity to induce the formation of nucleotide-liposome complexes, and purine based nucleotides have higher affinities with lipid membranes. On the whole, the data emphasize that the mechanisms driving the interactions between liposomes and NMPs are also influenced by the existence of hydrophobic forces.
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Affiliation(s)
- Francesca Cuomo
- Dipartimento di Agricoltura, Ambiente Alimenti (DIAAA) and Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), Università degli studi del Molise, I-86100 Campobasso, Italy
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8
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Keller R, Kwak M, de Vries JW, Sawaryn C, Wang J, Anaya M, Müllen K, Butt HJ, Herrmann A, Berger R. Properties of amphiphilic oligonucleotide films at the air/water interface and after film transfer. Colloids Surf B Biointerfaces 2013; 111:439-45. [PMID: 23859875 DOI: 10.1016/j.colsurfb.2013.06.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 06/11/2013] [Accepted: 06/12/2013] [Indexed: 10/26/2022]
Abstract
The self-assembly of amphiphilic hybrid materials containing an oligonucleotide sequence at the air/water interface was investigated by means of pressure-molecular area (Π-A) isotherms. In addition, films were transferred onto solid substrates and imaged using scanning force microscopy. We used oligonucleotide molecules with lipid tails, which consisted of a single stranded oligonucleotide 11 mer containing two hydrophobically modified 5-(dodec-1-ynyl)uracil nucleobases (dU11) at the 5'-end of the oligonucleotide sequence. The air/water interface was used as confinement for the self-assembling process of dU11. Scanning force microscopy of films transferred via Langmuir-Blodgett technique revealed mono-, bi- (Π ≥ 2 mN/m) and multilayer formation (Π ≥ 30 mN/m). The first layer was 1.6 ± 0.1 nm thick. It was oriented with the hydrophilic oligonucleotide moiety facing the hydrophilic substrate while the hydrophobic alkyl chains faced air. In the second layer the oligonucleotide moiety was found to face the air. The second layer was found to cover up to 95% of the sample area. Our measurements indicated that the rearrangement of the molecules into bi- and multiple bilayers happened already at the air/water interface. Similar results were obtained with a second type of oligonucleotide amphiphile, an oligonucleotide block copolymer, which was composed of an oligonucleotide 11 mer covalently attached at the terminus to polypropyleneoxide (PPO).
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Affiliation(s)
- R Keller
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - M Kwak
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - J W de Vries
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - C Sawaryn
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - J Wang
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - M Anaya
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - K Müllen
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - H-J Butt
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - A Herrmann
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - R Berger
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
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Ugarte-Uribe B, Grijalvo S, Busto JV, Martín C, Eritja R, Goñi FM, Alkorta I. Double-tailed lipid modification as a promising candidate for oligonucleotide delivery in mammalian cells. Biochim Biophys Acta Gen Subj 2013; 1830:4872-84. [PMID: 23800579 DOI: 10.1016/j.bbagen.2013.06.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 05/31/2013] [Accepted: 06/13/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND The potential use of nucleic acids as therapeutic drugs has triggered the quest for oligonucleotide conjugates with enhanced cellular permeability. To this end, the biophysical aspects of previously reported potential lipid oligodeoxyribonucleotide conjugates were studied including its membrane-binding properties and cellular uptake. METHODS These conjugates were fully characterized by MALDI-TOF mass spectrometry and HPLC chromatography. Their ability to insert into lipid model membrane systems was evaluated by Langmuir balance and confocal microscopy followed by the study of the internalization of a lipid oligodeoxyribonucleotide conjugate bearing a double-tail lipid modification (C28) into different cell lines by confocal microscopy and flow cytometry. This compound was also compared with other lipid containing conjugates and with the classical lipoplex formulation using Transfectin as transfection reagent. RESULTS This double-tail lipid modification showed better incorporation into both lipid model membranes and cell systems. Indeed, this lipid conjugation was capable of inserting the oligodeoxyribonucleotide into both liquid-disordered and liquid-ordered domains of model lipid bilayer systems and produced an enhancement of oligodeoxyribonucleotide uptake in cells, even better than the effect caused by lipoplexes. In addition, in β2 integrin (CR3) expressing cells this receptor was directly involved in the enhanced internalization of this compound. CONCLUSIONS All these features confirm that the dual lipid modification (C28) is an excellent modification for enhancing nucleic acid delivery without altering their binding properties. GENERAL SIGNIFICANCE Compared to the commercial lipoplex approach, oligodeoxyribonucleotide conjugation with C28 dual lipid modification seems to be promising to improve oligonucleotide delivery in mammalian cells.
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Affiliation(s)
- Begoña Ugarte-Uribe
- Department of Biochemistry and Molecular Biology, UPV/EHU and Biophysics Unit, Leioa, Spain
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Cuomo F, Mosca M, Murgia S, Ceglie A, Lopez F. Oligonucleotides and polynucleotides condensation onto liposome surface: effects of the base and of the nucleotide length. Colloids Surf B Biointerfaces 2012; 104:239-44. [PMID: 23337119 DOI: 10.1016/j.colsurfb.2012.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 11/27/2012] [Accepted: 12/04/2012] [Indexed: 10/27/2022]
Abstract
The association behavior of different nucleic acids with cationic liposomes has been monitored, in order to find out how the polymer length, the type of base and the charge density affect the lipoplex formation. In particular the associative features displayed by the homopolymer 20-mer of adenine, Oligo (dA), of timine, Oligo (dT), and of guanine, Oligo (dG), were compared to understand the role of the base. The effects of the nucleic acid length and of the charge density were evaluated taking account of the association of the polyadenylic acid and of the DNA onto the liposomes. The results show that the homopolymer Oligo (dG) is able to interact with the cationic liposomes to the same extent as DNA, in spite of the fact that Oligo (dG) is a short polymer made of 20 residues and DNA is a longer and dual strand polymer having a higher charge density.
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Affiliation(s)
- Francesca Cuomo
- Dipartimento di Agricoltura, Ambiente e Alimenti (DIAAA) and CSGI, Università degli studi del Molise, I-86100 Campobasso, Italy.
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Gour N, Kedracki D, Safir I, Ngo KX, Vebert-Nardin C. Self-assembling DNA-peptide hybrids: morphological consequences of oligonucleotide grafting to a pathogenic amyloid fibrils forming dipeptide. Chem Commun (Camb) 2012; 48:5440-2. [PMID: 22534735 DOI: 10.1039/c2cc31458d] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
For the very first time, highly efficient synthesis of DNA-peptide hybrids to scaffold self-assembled nanostructures is described. Oligonucleotide conjugation to the diphenylalanine dipeptide triggers a morphological transition from fibrillar to vesicular structures which may potentially be used as delivery vehicles, since they exhibit pH triggered release.
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Affiliation(s)
- Nidhi Gour
- Department of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, 30, quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
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Cottenye N, Syga MI, Nosov S, Müller AHE, Ploux L, Vebert-Nardin C. Biological-like vesicular structures self-assembled from DNA-block copolymers. Chem Commun (Camb) 2012; 48:2615-7. [DOI: 10.1039/c2cc17487a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kedracki D, Safir I, Gour N, Ngo KX, Vebert-Nardin C. DNA–Polymer Conjugates: From Synthesis, Through Complex Formation and Self-assembly to Applications. BIO-SYNTHETIC POLYMER CONJUGATES 2012. [DOI: 10.1007/12_2012_181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Comparative study of liponucleosides in Langmuir monolayers as cell membrane models. Biophys Chem 2011; 153:154-8. [DOI: 10.1016/j.bpc.2010.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 10/20/2010] [Accepted: 10/22/2010] [Indexed: 11/19/2022]
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