1
|
Sarmah RJ, Kundu S. Structure, morphology and reversible hysteresis nature of human serum albumin (HSA) monolayer on water surface. Int J Biol Macromol 2021; 174:377-384. [PMID: 33485891 DOI: 10.1016/j.ijbiomac.2021.01.131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/21/2020] [Accepted: 01/19/2021] [Indexed: 11/30/2022]
Abstract
Compression-decompression surface pressure (π)-specific molecular area (A) isotherm cycle of human serum albumin (HSA) monolayer is performed on water surface at four different subphase pH conditions, i.e., below and above the isoelectric point (pI ≈ 4.7) of HSA molecule. For all pH conditions, the decompression curve nearly follows the compression curve, however, at pH ≈ 5.0, hysteresis is observed at higher surface pressure. Out-of-plane structures and in-plane morphologies obtained from the X-ray reflectivity and AFM studies show that only the film thickness variation takes place with the change in surface pressure, which is also evidenced from the BAM images. With increase in surface pressure, the oblate-shaped HSA molecules start tilting making an angle with the water surface and as the monolayer is decompressed the molecules regain their initial untilted monomolecular configuration. Depending upon the subphase pH and local surface charge of the specific protein molecule, electrostatic repulsive interaction dominates over the van der Waals attraction and as a result decompression curve follows the compression curve as the molecules repel each other, however, closer to the isoelectric point as strength of the interactions reverses, a hysteresis is obtained at higher surface pressure and accordingly monolayer behaviour modifies on the water surface.
Collapse
Affiliation(s)
- Raktim J Sarmah
- Soft Nano Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Sarathi Kundu
- Soft Nano Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India.
| |
Collapse
|
2
|
de Lyra ACF, Dos Santos Silva AL, Dos Santos ECL, López AMQ, da Silva JCS, Figueiredo IM, Santos JCC. Molecular interaction of sulfonamides and ovalbumin, an allergenic egg protein, exploring biophysical, theoretical and biological studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117747. [PMID: 31727521 DOI: 10.1016/j.saa.2019.117747] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Biophysical, theoretical and biological in vitro studies were carried out to evaluate the interaction of the main allergen protein of egg white (ovalbumin, OVA) with sulphonamides (SA): sulphathiazole (S1), sulfaquinoxaline (S2), sulfadimethoxine (S3) and sulfamethazine (S4). The binding constants for the OVA-SA supramolecular complexes ranged from 1.20 to 30.66 × 105 M-1, observing the following order of affinity: S1 > S2 > S4 > S3. The preferential forces in the stabilization of the OVA complexes with S2 and S3 were hydrogen bonds and Van der Waals forces, whereas for OVA-S1 and OVAS4, were electrostatic interactions. Interaction process led to a change in the native structure of the protein, which may potentiate its natural allergenicity. Cations Ca(II), Mg(II) and Fe(III) favor the interaction of OVA with S1 and S2. The theoretical studies performed were consistent with the spectroscopic data. Finally, it was found that the interaction process for sulfonamides evaluated with OVA change the inhibition activity profile these antibiotics against strains of Escherichia coli ATCC 25922 and Bacillus megaterium APFSG3isox, but not the minimal inhibitory concentration values.
Collapse
Affiliation(s)
- Ana Carolina Fradique de Lyra
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Amanda L Dos Santos Silva
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Elane Cristina L Dos Santos
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Ana Maria Queijeiro López
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Júlio Cosme S da Silva
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Isis Martins Figueiredo
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil
| | - Josué Carinhanha Caldas Santos
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Campus A. C. Simões, 57072-900 Maceió, Alagoas, Brazil.
| |
Collapse
|
3
|
Rose F, Roovers S, Fano M, Harloff-Helleberg S, Kirkensgaard JJK, Hejnaes K, Fischer P, Foged C. Temperature-Induced Self-Assembly of the Group B Streptococcus (GBS) Fusion Antigen GBS-NN. Mol Pharm 2018; 15:2584-2593. [PMID: 29745668 DOI: 10.1021/acs.molpharmaceut.8b00101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Group B Streptococcus (GBS) is a leading cause of serious bacterial neonatal infections worldwide, which provides an unmet medical need for a globally effective vaccine. The recombinant GBS fusion antigen GBS-NN contains the N-terminal regions of the GBS Rib and Alpha C proteins. It shows promising immunogenicity eliciting protective immunity in mice and encouraging results in early human clinical trials. Understanding the physical stability of GBS-NN containing conformational B-cell epitopes is crucial to ensure optimal vaccine stability, efficacy, and safety. We initially discovered that GBS-NN is prone to form higher-order structures at elevated temperatures. We therefore investigated the self-assembly behavior of GBS-NN and characterized the higher-order conformational structures as a function of temperature. In the native state, GBS-NN exists as a monomer and has a secondary structure containing α-helix and β-sheet. Langmuir studies demonstrated that the native protein is highly surface-active and forms a monolayer film at the air-water interface because of its amphipathic properties. The conformational stability of GBS-NN was measured as a function of temperature. GBS-NN has an unusual thermal behavior with a phase transition of approximately 61 °C, which is not accompanied by any major changes in the secondary structure. However, the antigen showed irreversible self-assembly as a function of temperature into higher-order structures with a hydrodynamic diameter of approximately 100 nm. Cryo-transmission electron microscopy analyses demonstrated that these self-assemblies consist of vesicular, ring-like structures with a hollow aqueous interior. Therefore, GBS-NN is a physically stable monomeric protein but is prone to temperature-induced self-assembly above 61 °C.
Collapse
Affiliation(s)
| | - Silke Roovers
- Laboratory of General Biochemistry and Physical Pharmacy , Ghent University , Ottergemsesteenweg 460 , 9000 Ghent , Belgium
| | | | | | - Jacob J K Kirkensgaard
- Niels Bohr Institute, Faculty of Science , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen Ø , Denmark
| | - Kim Hejnaes
- MinervaX ApS , Ole Maaløes Vej 3 , DK-2200 Copenhagen N , Denmark
| | - Per Fischer
- MinervaX ApS , Ole Maaløes Vej 3 , DK-2200 Copenhagen N , Denmark
| | | |
Collapse
|
4
|
Langmuir-monolayer methodologies for characterizing protein-lipid interactions. Chem Phys Lipids 2018; 212:61-72. [DOI: 10.1016/j.chemphyslip.2018.01.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/22/2017] [Accepted: 01/18/2018] [Indexed: 12/22/2022]
|
5
|
Modified aggregation pattern of cresyl violet acetate adsorbed on nano clay mineral layers in Langmuir Blodgett film. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
6
|
Membrane-damaging activities of mannosylated ovalbumin are involved in its antibacterial action. Arch Biochem Biophys 2018; 639:1-8. [DOI: 10.1016/j.abb.2017.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/02/2017] [Accepted: 12/06/2017] [Indexed: 11/23/2022]
|
7
|
Yang J, Hao C, Sun R. Effect of Laminaria japonica polysaccharides on lipids monolayers at the air-water surface. Colloids Surf B Biointerfaces 2018; 161:614-619. [PMID: 29156338 DOI: 10.1016/j.colsurfb.2017.11.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/20/2017] [Accepted: 11/15/2017] [Indexed: 10/18/2022]
Abstract
In this paper, we examined the effect of Laminaria japonica polysaccharides (LJP) on cationic 1,2-Dioleoyl-3-Trimethylammonium-Propane (DOTAP) and anionic 1,2-dipalmitoyl-sn-glycero-3-[phospho-rac-1-glycerol] (DPPG) monolayers at the air-water interface by the pressure-area isotherms (π-A), adsorption curves (π-t) and morphology measurements with atomic force microscopy (AFM) technique. The π-A curves revealed that the isotherms shifted to larger mean molecular area with progressive addition of LJP into subphase for both DOTAP and DPPG monolayers. And the compression modulus Cs-1 obtained from π-A curves showed that the elasticity of the films decreased with the addition of LJP. Adsorption curves were measured at the surface pressure of 10 and 20mN/m, which were fitted by the adsorption kinetics equation. It revealed that DOTAP monolayer changed into a mixed film with the insertion of polysaccharides molecules. However, there was no significant effect on the surface pressure for DPPG monolayer. Besides, surface morphology was observed by AFM, which was consistent with the results of fitted adsorption curves.
Collapse
Affiliation(s)
- Juanjuan Yang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
| | - Changchun Hao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China.
| | - Runguang Sun
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
| |
Collapse
|
8
|
The interfacial properties of various milk fat globule membrane components using Langmuir isotherms. FOOD BIOSCI 2017. [DOI: 10.1016/j.fbio.2017.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
Sah BK, Kundu S. Modification of hysteresis behaviors of protein monolayer and the corresponding structures with the variation of protein surface charges. Colloids Surf B Biointerfaces 2017; 159:696-704. [DOI: 10.1016/j.colsurfb.2017.08.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/09/2017] [Accepted: 08/17/2017] [Indexed: 11/29/2022]
|
10
|
Clay induced changes in the aggregation pattern of Safranine-O in hybrid Langmuir-Blogdgett (LB) films. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.08.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
11
|
Shil A, Hussain S, Bhattacharjee D. Surfactant concentration dependent metachromasy of an anionic cyanine dye in adsorbed and deposited Langmuir films. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.03.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
12
|
Tang CC, Shi YJ, Chen YJ, Chang LS. Ovalbumin with Glycated Carboxyl Groups Shows Membrane-Damaging Activity. Int J Mol Sci 2017; 18:ijms18030520. [PMID: 28264493 PMCID: PMC5372536 DOI: 10.3390/ijms18030520] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/17/2017] [Accepted: 02/22/2017] [Indexed: 11/25/2022] Open
Abstract
The aim of the present study was to investigate whether glycated ovalbumin (OVA) showed novel activity at the lipid-water interface. Mannosylated OVA (Man-OVA) was prepared by modification of the carboxyl groups with p-aminophenyl α-dextro (d)-mannopyranoside. An increase in the number of modified carboxyl groups increased the membrane-damaging activity of Man-OVA on cell membrane-mimicking vesicles, whereas OVA did not induce membrane permeability in the tested phospholipid vesicles. The glycation of carboxyl groups caused a notable change in the gross conformation of OVA. Moreover, owing to their spatial positions, the Trp residues in Man-OVA were more exposed, unlike those in OVA. Fluorescence quenching studies suggested that the Trp residues in Man-OVA were located on the interface binds with the lipid vesicles, and their microenvironment was abundant in positively charged residues. Although OVA and Man-OVA showed a similar binding affinity for lipid vesicles, the lipid-interacting feature of Man-OVA was distinct from that of OVA. Chemical modification studies revealed that Lys and Arg residues, but not Trp residues, played a crucial role in the membrane-damaging activity of Man-OVA. Taken together, our data suggest that glycation of carboxyl groups causes changes in the structural properties and membrane-interacting features of OVA, generating OVA with membrane-perturbing activities at the lipid-water interface.
Collapse
Affiliation(s)
- Ching-Chia Tang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
| | - Yi-Jun Shi
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
| | - Ying-Jung Chen
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
13
|
Zhang F, Ma J, Watanabe J, Tang J, Liu H, Shen H. Dual Electrophoresis Detection System for Rapid and Sensitive Immunoassays with Nanoparticle Signal Amplification. Sci Rep 2017; 7:42562. [PMID: 28198385 PMCID: PMC5309740 DOI: 10.1038/srep42562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/08/2017] [Indexed: 12/19/2022] Open
Abstract
An electrophoretic technique was combined with an enzyme-linked immunosorbent assay (ELISA) system to achieve a rapid and sensitive immunoassay. A cellulose acetate filter modified with polyelectrolyte multilayer (PEM) was used as a solid substrate for three-dimensional antigen-antibody reactions. A dual electrophoresis process was used to induce directional migration and local condensation of antigens and antibodies at the solid substrate, avoiding the long diffusion times associated with antigen-antibody reactions in conventional ELISAs. The electrophoretic forces drove two steps in the ELISA process, namely the adsorption of antigen, and secondary antibody-labelled polystyrene nanoparticles (NP-Ab). The total time needed for dual electrophoresis-driven detection was just 4 min, nearly 2 h faster than a conventional ELISA system. Moreover, the rapid NP-Ab electrophoresis system simultaneously achieved amplification of the specific signal and a reduction in noise, leading to a more sensitive NP-Ab immunoassay with a limit of detection (LOD) of 130 fM, and wide range of detectable concentrations from 0.13 to 130 pM. These results suggest that the combination of dual electrophoresis detection and NP-Ab signal amplification has great potential for future immunoassay systems.
Collapse
Affiliation(s)
- Fangfang Zhang
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Junjie Ma
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Junji Watanabe
- Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe 658-8501, Japan
| | - Jinlong Tang
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Huiyu Liu
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Heyun Shen
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| |
Collapse
|
14
|
Lai X, Gao G, Watanabe J, Liu H, Shen H. Hydrophilic Polyelectrolyte Multilayers Improve the ELISA System: Antibody Enrichment and Blocking Free. Polymers (Basel) 2017; 9:polym9020051. [PMID: 30970737 PMCID: PMC6432497 DOI: 10.3390/polym9020051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 01/17/2017] [Accepted: 01/24/2017] [Indexed: 11/23/2022] Open
Abstract
In this study, polyelectrolyte multilayers were fabricated on a polystyrene (PS) plate using a Layer-by-Layer (LbL) self-assembly technique. The resulting functional platform showed improved performance compared with conventional enzyme-linked immunosorbent assay (ELISA) systems. Poly(diallyldimethylammonium chloride) (PDDA) and poly(acrylic acid) (PAA) were used as cationic and anionic polyelectrolytes. On the negatively-charged (PDDA/PAA)3 polyelectrolyte multilayers the hydrophilic PAA surface could efficiently decrease the magnitude of the noise signal, by inhibiting nonspecific adsorption even without blocking reagent adsorption. Moreover, the (PDDA/PAA)3 substrate covalently immobilized the primary antibody, greatly increasing the amount of primary antibody adsorption and enhancing the specific detection signal compared with a conventional PS plate. The calibration curve of the (PDDA/PAA)3 substrate showed a wide linear range, for concentrations from 0.033 to 33 nM, a large specific signal change, and a detection limit of 33 pM, even though the conventional blocking reagent adsorption step was omitted. The (PDDA/PAA)3 substrate provided a high-performance ELISA system with a simple fabrication process and high sensitivity; the system presented here shows potential for a variety of immunosensor applications.
Collapse
Affiliation(s)
- Xing Lai
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Gan Gao
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Junji Watanabe
- Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe 658-8501, Japan.
| | - Huiyu Liu
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Heyun Shen
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| |
Collapse
|
15
|
|
16
|
Diociaiuti M, Giordani C, Kamel GS, Brasili F, Sennato S, Bombelli C, Meneses KY, Giraldo MA, Bordi F. Monosialoganglioside-GM1 triggers binding of the amyloid-protein salmon calcitonin to a Langmuir membrane model mimicking the occurrence of lipid-rafts. Biochem Biophys Rep 2016; 8:365-375. [PMID: 28955978 PMCID: PMC5614544 DOI: 10.1016/j.bbrep.2016.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 09/08/2016] [Accepted: 10/10/2016] [Indexed: 12/18/2022] Open
Abstract
GM1 ganglioside is known to be involved in the amyloid-associated diseases and it is a crucial factor for the assembly of amyloid proteins on lipid-rafts, which are lipid structures located on the synaptic plasma membranes. Due to its slow aggregation rate, we employed salmon calcitonin (sCT) as a suitable probe representative of amyloid proteins, to study the interaction between this class of proteins and a membrane model. Here, we prepared a neuronal membrane model by depositing onto mica two Langmuir-Blodgett films in liquid-condensed phase: the outer monolayer was characterized by high content of GM1 (50%) and minority parts of cholesterol and POPC (25-25%), while the inner one by plain POPC. To deeply investigate the interaction of sCT with this model and the role-played by GM1, we prepared the outer leaflet adding sCT at a concentration such that the number of proteins equals that of GM1. Atomic Force Microscopy revealed the occurrence of two distinct kinds of flat surfaces, with globular aggregates localized exclusively on top of the highest one. To unravel the nature of the interaction, we studied by ζ-potential technique liposomes composed as the outer leaflet of the model. Results demonstrated that an electrostatic interaction sCT-GM1 occurred. Finally, to investigate the interaction thermodynamics between sCT and the outer leaflet, Langmuir films as the outer monolayer and containing increasing content of sCT were studied by compression isotherms and Brewster Angle Microscopy experiments. Based on the all body of results we propose an interaction model where GM1 plays a pivotal role.
Collapse
Affiliation(s)
- Marco Diociaiuti
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, I-00161 Roma, Italy
- Correspondence to: Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, viale Regina Elena 299, 00161 Roma, Italy.
| | - Cristiano Giordani
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, I-00161 Roma, Italy
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Gihan S. Kamel
- Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Francesco Brasili
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Simona Sennato
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Cecilia Bombelli
- CNR, Istituto di Metodologie Chimiche, Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma “Sapienza”, I-00185 Roma, Italy
| | - Karen Y. Meneses
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Marco A. Giraldo
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Federico Bordi
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| |
Collapse
|
17
|
Yang J, Huang J, Zeng H, Chen L. Surface pressure affects B-hordein network formation at the air–water interface in relation to gastric digestibility. Colloids Surf B Biointerfaces 2015; 135:784-792. [DOI: 10.1016/j.colsurfb.2015.08.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/28/2015] [Accepted: 08/20/2015] [Indexed: 01/12/2023]
|
18
|
Lipophilic prodrug of paclitaxel: Interaction with a dimyristoylphosphatidylcholine monolayer. Int J Pharm 2014; 475:624-31. [DOI: 10.1016/j.ijpharm.2014.09.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/11/2014] [Accepted: 09/12/2014] [Indexed: 11/18/2022]
|
19
|
Garcia-Gonzalez A, Flores-Vazquez AL, Barba de la Rosa AP, Vazquez-Martinez EA, Ruiz-Garcia J. Amaranth 7S Globulin Langmuir Films and Its Interaction with l-α-Dipalmitoilphosphatidilcholine at the Air–Fluid Interface. J Phys Chem B 2013; 117:14046-58. [DOI: 10.1021/jp405944u] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alcione Garcia-Gonzalez
- Colloids
and Interfaces Laboratory, Institute of Physics, Autonomous University of San Luis Potosi, Alvaro Obregon 64, 78000 San Luis Potosi, S.L.P., Mexico
- Universidad
Autonoma de Nuevo León, UANL, Facultad de Ciencias
Quimicas, Av. Universidad S/N, Cd.
Universitaria, San Nicolas de los Garza, N.L. C.P. 66451, Mexico
| | - A. L. Flores-Vazquez
- Colloids
and Interfaces Laboratory, Institute of Physics, Autonomous University of San Luis Potosi, Alvaro Obregon 64, 78000 San Luis Potosi, S.L.P., Mexico
| | - A. P. Barba de la Rosa
- Institute for Scientific and Technological Research at San Luis Potosí, Camino a la Presa San Jose s/n,
Lomas 4a Seccion, 78231 San Luis Potosí, S.L.P., Mexico
| | - E. A. Vazquez-Martinez
- Colloids
and Interfaces Laboratory, Institute of Physics, Autonomous University of San Luis Potosi, Alvaro Obregon 64, 78000 San Luis Potosi, S.L.P., Mexico
| | - J. Ruiz-Garcia
- Colloids
and Interfaces Laboratory, Institute of Physics, Autonomous University of San Luis Potosi, Alvaro Obregon 64, 78000 San Luis Potosi, S.L.P., Mexico
| |
Collapse
|
20
|
Subpicomolar sensing of hydrogen peroxide with ovalbumin-embedded chitosan/polystyrene sulfonate multilayer membrane. Anal Biochem 2013; 440:49-55. [DOI: 10.1016/j.ab.2013.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 04/26/2013] [Accepted: 04/29/2013] [Indexed: 11/21/2022]
|
21
|
Effect of bovine serum albumin on the functionality and structure of catanionic surfactant at air–buffer interface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:836-43. [DOI: 10.1016/j.msec.2012.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 10/09/2012] [Accepted: 11/05/2012] [Indexed: 11/22/2022]
|
22
|
Saha M, Hussain SA, Bhattacharjee D. Interaction of a Laser Dye with a Floating Phospholipid Monolayer. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.784552] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
23
|
Mahato M, Pal P, Tah B, Talapatra G. Hemoglobin–phospholipid interaction and biocomposite formation at air/water interface. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.08.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
24
|
|
25
|
Joy S, Pal P, Mondal TK, Talapatra GB, Goswami S. Synthesis of Amphiphilic Azo-Anion-Radical Complexes of Chromium(III) and the Development of Ultrathin Redox-Active Surfaces by the Langmuir-Schaefer Technique. Chemistry 2012; 18:1761-71. [DOI: 10.1002/chem.201102765] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Indexed: 11/09/2022]
|
26
|
Mahato M, Pal P, Tah B, Ghosh M, Talapatra GB. Study of silver nanoparticle-hemoglobin interaction and composite formation. Colloids Surf B Biointerfaces 2011; 88:141-9. [PMID: 21788120 DOI: 10.1016/j.colsurfb.2011.06.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 06/20/2011] [Accepted: 06/20/2011] [Indexed: 10/18/2022]
Abstract
Nanoscience is now an expanding field of research and finds potential application in biomedical area, but it is limited due to lack of comprehensive knowledge of the interactions operating in nano-bio system. Here, we report the studies on the interaction and formation of nano-bio complex between silver nanoparticle (AgNP) and human blood protein hemoglobin (Hb). We have employed several spectroscopic (absorption, emission, Raman, FTIR, CD, etc.) and electron diffraction techniques (FE-SEM and HR-TEM) to characterize the Hb-AgNP complex system. Our results show the Hb-AgNP interaction is concentration and time dependent. The AgNP particle can attach/come closer to heme, tryptophan, and amide as well aromatic amine residues. As a result, the Hb undergoes conformational change and becomes unfolded through the increment of β-sheet structure. The AgNP-Hb can form charge-transfers (CT) complex where the Hb-heme along with the AgNP involved in the electron transfer mechanism and form Hb-AgNP assembled structure. The electron transfer mechanism has been found to be dependent on the size of silver particle. The overall study is important in understanding the nano-bio system and in predicting the avenues to design and synthesis of novel nano-biocomposite materials in material science and biomedical area.
Collapse
Affiliation(s)
- Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India
| | | | | | | | | |
Collapse
|
27
|
Pinholt C, Hartvig RA, Medlicott NJ, Jorgensen L. The importance of interfaces in protein drug delivery – why is protein adsorption of interest in pharmaceutical formulations? Expert Opin Drug Deliv 2011; 8:949-64. [DOI: 10.1517/17425247.2011.577062] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
28
|
Pal P, Mahato M, Kamilya T, Tah B, Sarkar R, Talapatra GB. Fibrillation of Egg White Ovalbumin: A Pathway via Biomineralization. J Phys Chem B 2011; 115:4259-65. [DOI: 10.1021/jp200607x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prabir Pal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India
| | - Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India
| | | | - Bidisha Tah
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India
| | | | - G. B. Talapatra
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India
| |
Collapse
|
29
|
Rizwan SB, Assmus D, Boehnke A, Hanley T, Boyd BJ, Rades T, Hook S. Preparation of phytantriol cubosomes by solvent precursor dilution for the delivery of protein vaccines. Eur J Pharm Biopharm 2011; 79:15-22. [PMID: 21237267 DOI: 10.1016/j.ejpb.2010.12.034] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 12/20/2010] [Accepted: 12/22/2010] [Indexed: 01/02/2023]
Abstract
Different delivery strategies to improve the immunogenicity of peptide/protein-based vaccines are currently under investigation. In this study, the preparation and physicochemical characterisation of cubosomes, a novel lipid-based particulate system currently being explored for vaccine delivery, was investigated. Cubosomes were prepared from a liquid precursor mixture containing phytantriol or glycerylmonooleate (GMO), F127 for particle stabilisation, and a hydrotrope (ethanol or polyethylene glycol (PEG(200)) or propylene glycol (PG)). Several liquid precursors were prepared, and the effect of varying the concentrations of F127 and the hydrotrope on cubosome formation was investigated. Formulations were prepared by fragmentation for comparison. The model protein ovalbumin (Ova) was also entrapped within selected formulations. Submicron-sized particles (180-300 nm) were formed spontaneously upon dilution of the liquid precursors, circumventing the need for the preformed cubic phase used in traditional fragmentation-based methods. The nanostructure of the phytantriol dispersions was determined to be cubic phase using SAXS whilst GMO dispersions had a reverse hexagonal nanostructure coexisting with cubic phase. The greatest entrapment of Ova was within phytantriol cubosomes prepared from liquid precursors. Release of Ova from the various formulations was sustained; however, release was significantly faster and the extent of release was greater from fragmented dispersions compared to liquid precursor formulations. Taken together, these results suggest that phytantriol cubosomes can be prepared using liquid precursors and that it is a suitable alternative to GMO. Furthermore, the high entrapment and the slow release of Ova in vitro highlight the potential of phytantriol cubosomes prepared using liquid precursors as a novel vaccine delivery system.
Collapse
Affiliation(s)
- S B Rizwan
- Department of Anatomy and Structural Biology, University of Otago, New Zealand.
| | | | | | | | | | | | | |
Collapse
|
30
|
Kamilya T, Pal P, Mahato M, Sarkar R, Talapatra GB. Incorporation of pepsin within zwitterionic, anionic, and cationic lipid monolayers: A comparative study. RSC Adv 2011. [DOI: 10.1039/c1ra00158b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
31
|
Pal P, Mahato M, Kamilya T, Talapatra GB. Interaction of glucose with hemoglobin: a study in aqueous solution and at the air–water interface using the Langmuir–Blodgett technique. Phys Chem Chem Phys 2011; 13:9385-96. [DOI: 10.1039/c0cp02277b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
32
|
Shen H, Watanabe J, Akashi M. Polyelectrolyte multilayers-modified membrane filter for rapid immunoassay: protein condensation by centrifugal permeation. Polym J 2010. [DOI: 10.1038/pj.2010.114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
33
|
Shen H, Watanabe J, Akashi M. Polyelectrolyte multilayers-modified polystyrene plate improves conventional immunoassay: full covering of the blocking reagent. Anal Chem 2010; 81:6923-8. [PMID: 19606875 DOI: 10.1021/ac900985x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, we fabricated polyelectrolyte multilayers (PEMs) on a polystyrene (PS) plate by a simple and novel alternate drop coating process (Acta Biomaterialia 2008, 4, 1255-1262), leading to the construction of a functional platform for improving conventional enzyme-linked immunosorbent assay (ELISA) systems. Poly(diallyldimethylammonium chloride) (PDDA) and poly(sodium 4-styrenesulfonate) (PSS) were used as cationic and anionic polyelectrolytes, and then positively or negatively charged surfaces were obtained on the PEMs. The PDDA/PSS PEMs on the PS plate had the following favorable characteristics. On the positive PEMs, the coverage of the blocking reagent (ovalbumin from egg white: OVA) was over 100% by electrostatic interaction between the protein and PEMs, hence, nonspecific adsorption from the secondary antibody was efficiently suppressed. Moreover, the positive PEMs showed higher sensitivity on the ELISA than the negative PEMs, including the PS plate. Regularly oscillating behavior for sensitivity (specific signal-to-noise ratio) was observed on 1-10-step assemblies. The calibration curves for antigen detection on the positive PEMs had wide range of concentration from 0.002 to 5 microg/mL, and largest change in signal as compared with the negative PEMs and the PS plate. In summary, we discovered that positive PEMs possessed excellent performance for ELISA systems, and PEMs could easily improve the immunoassay with a convenient process and diverse substrates.
Collapse
Affiliation(s)
- Heyun Shen
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | | | | |
Collapse
|
34
|
Sankaranarayanan K, Dhathathreyan A, Miller R. Assembling Fibrinogen at Air/Water and Solid/Liquid Interfaces Using Langmuir and Langmuir−Blodgett Films. J Phys Chem B 2010; 114:8067-75. [DOI: 10.1021/jp100896b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | - Reinhard Miller
- Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14424 Potsdam, FRG
| |
Collapse
|
35
|
Sarkar R, Pal P, Mahato M, Kamilya T, Chaudhuri A, Talapatra GB. On the origin of iron-oxide nanoparticle formation using phospholipid membrane template. Colloids Surf B Biointerfaces 2010; 79:384-9. [PMID: 20493675 DOI: 10.1016/j.colsurfb.2010.04.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Revised: 04/20/2010] [Accepted: 04/27/2010] [Indexed: 11/16/2022]
Abstract
In this report, we have studied the formation of iron-oxide nanoparticle at biologically relevant phospholipids, DPPC Langmuir monolayer at air/water interface. Water subphase contains FeCl(3). Adsorption and agglomeration of Fe(3+) ions at DPPC head group have being monitored by Langmuir and Langmuir Blodgett (LB) technique. Adsorption kinetics (pi-t) as well as the surface pressure area (pi-A) isotherms measurement demonstrate the incorporation of Fe(3+) ion at DPPC monolayer. The amount of incorporation of Fe(3+) to the DPPC monolayer is FeCl(3) concentration and time dependent. This reaction kinetics is well fitted by single exponential association equation. The composite monolayers transferred to different substrates are characterized by UV-vis absorption spectroscopy and electron microscopy (FE-SEM and HR-TEM). Study shows the formation of monodisperse Fe(3)O(4) nanoparticle having size approximately 20 nm coated with DPPC mono or multilayer. The overall study indicates that the formation as well as assembly of iron-oxide nanoparticle in two dimensions is possible using lipid monolayer as a template.
Collapse
Affiliation(s)
- Ratan Sarkar
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | | | | | | | | | | |
Collapse
|
36
|
Mahato M, Pal P, Kamilya T, Sarkar R, Chaudhuri A, Talapatra GB. Hemoglobin−Silver Interaction and Bioconjugate Formation: A Spectroscopic Study. J Phys Chem B 2010; 114:7062-70. [DOI: 10.1021/jp100188s] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| | - Prabir Pal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| | - Tapanendu Kamilya
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| | - Ratan Sarkar
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| | - Avinanda Chaudhuri
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| | - G. B. Talapatra
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721 211, India
| |
Collapse
|
37
|
Miao S, Leeman H, De Feyter S, Schoonheydt R. Three-Component Langmuir-Blodgett Films Consisting of Surfactant, Clay Mineral, and Lysozyme: Construction and Characterization. Chemistry 2010; 16:2461-9. [DOI: 10.1002/chem.200900584] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
38
|
Adsorption of pepsin in octadecylamine matrix at air–water interface. Biophys Chem 2010; 146:85-91. [DOI: 10.1016/j.bpc.2009.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Revised: 10/16/2009] [Accepted: 10/27/2009] [Indexed: 11/18/2022]
|
39
|
Mahato M, Pal P, Kamilya T, Sarkar R, Chaudhuri A, Talapatra GB. Influence of KCl on the interfacial activity and conformation of hemoglobin studied by Langmuir–Blodgett technique. Phys Chem Chem Phys 2010; 12:12997-3006. [DOI: 10.1039/c0cp00344a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
40
|
Joy S, Pal P, Mahato M, Talapatra GB, Goswami S. Tailor made synthesis of amphiphilic azoaromatics via regioselective C–N bond fusion. Comparative studies of surface properties of the two positional isomers and cobalt complexes. Dalton Trans 2010; 39:2775-84. [DOI: 10.1039/b919871g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
41
|
Miao S, Leeman H, De Feyter S, Schoonheydt RA. Facile preparation of Langmuir–Blodgett films of water-soluble proteins and hybrid protein–clay films. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b913659b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
42
|
Mahato M, Pal P, Kamilya T, Sarkar R, Talapatra GB. pH Induced Structural Modulation and Interfacial Activity of Hemoglobin at the Air/Water Interface. J Phys Chem B 2009; 114:495-502. [DOI: 10.1021/jp908081r] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Prabir Pal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Tapanendu Kamilya
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - Ratan Sarkar
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| | - G. B. Talapatra
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur-721211, India
| |
Collapse
|
43
|
Garcia-Gonzalez A, Flores-Vazquez AL, Maldonado E, Rosa APBDL, Ruiz-Garcia J. Globulin 11S and Its Mixture with l-Dipalmitoylphosphatidylcholine at the Air/Liquid Interface. J Phys Chem B 2009; 113:16547-56. [DOI: 10.1021/jp907443x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- A. Garcia-Gonzalez
- Institute of Physics, Autonomous University of San Luis Potosi, Álvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México; CINVESTAV-IPN-Mérida, Antigua carretera Mérida-Progreso km 6, 97310 Mérida, Yucatán, Mexico; and Institute for Scientific and Technological Research at San Luis Potosi, Camino a la Presa San José s/n, Lomas 4a Sección, 78231 San Luís Potosí, S.L.P., México
| | - A. L. Flores-Vazquez
- Institute of Physics, Autonomous University of San Luis Potosi, Álvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México; CINVESTAV-IPN-Mérida, Antigua carretera Mérida-Progreso km 6, 97310 Mérida, Yucatán, Mexico; and Institute for Scientific and Technological Research at San Luis Potosi, Camino a la Presa San José s/n, Lomas 4a Sección, 78231 San Luís Potosí, S.L.P., México
| | - E. Maldonado
- Institute of Physics, Autonomous University of San Luis Potosi, Álvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México; CINVESTAV-IPN-Mérida, Antigua carretera Mérida-Progreso km 6, 97310 Mérida, Yucatán, Mexico; and Institute for Scientific and Technological Research at San Luis Potosi, Camino a la Presa San José s/n, Lomas 4a Sección, 78231 San Luís Potosí, S.L.P., México
| | - A. P. Barba de la Rosa
- Institute of Physics, Autonomous University of San Luis Potosi, Álvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México; CINVESTAV-IPN-Mérida, Antigua carretera Mérida-Progreso km 6, 97310 Mérida, Yucatán, Mexico; and Institute for Scientific and Technological Research at San Luis Potosi, Camino a la Presa San José s/n, Lomas 4a Sección, 78231 San Luís Potosí, S.L.P., México
| | - J. Ruiz-Garcia
- Institute of Physics, Autonomous University of San Luis Potosi, Álvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México; CINVESTAV-IPN-Mérida, Antigua carretera Mérida-Progreso km 6, 97310 Mérida, Yucatán, Mexico; and Institute for Scientific and Technological Research at San Luis Potosi, Camino a la Presa San José s/n, Lomas 4a Sección, 78231 San Luís Potosí, S.L.P., México
| |
Collapse
|
44
|
Biophysical studies of the interactions between the phage varphiKZ gp144 lytic transglycosylase and model membranes. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2009; 39:263-76. [PMID: 19669132 DOI: 10.1007/s00249-009-0530-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 07/14/2009] [Accepted: 07/22/2009] [Indexed: 10/20/2022]
Abstract
The use of naturally occurring lytic bacteriophage proteins as specific antibacterial agents is a promising way to treat bacterial infections caused by antibiotic-resistant pathogens. The opportunity to develop bacterial resistance to these agents is minimized by their broad mechanism of action on bacterial membranes and peptidoglycan integrity. In the present study, we have investigated lipid interactions of the gp144 lytic transglycosylase from the Pseudomonas aeruginosa phage varphiKZ. Interactions with zwitterionic lipids characteristic of eukaryotic cells and with anionic lipids characteristic of bacterial cells were studied using fluorescence, solid-state nuclear magnetic resonance, Fourier transform infrared, circular dichroism, Langmuir monolayers, and Brewster angle microscopy (BAM). Gp144 interacted preferentially with anionic lipids, and the presence of gp144 in anionic model systems induced membrane disruption and lysis. Lipid domain formation in anionic membranes was observed by BAM. Gp144 did not induce disruption of zwitterionic membranes but caused an increase in rigidity of the lipid polar head group. However, gp144 interacted with zwitterionic and anionic lipids in a model membrane system containing both lipids. Finally, the gp144 secondary structure was not significantly modified upon lipid binding.
Collapse
|
45
|
The formation of pepsin monomolecular layer by the Langmuir-Blodgett film deposition technique. Colloids Surf B Biointerfaces 2009; 73:122-31. [PMID: 19500950 DOI: 10.1016/j.colsurfb.2009.05.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Revised: 04/16/2009] [Accepted: 05/08/2009] [Indexed: 11/21/2022]
Abstract
We report herein the formation of pepsin monomolecular layer by the Langmuir-Blodgett film deposition technique. An effort was made to find an optimal subphase by adjusting the concentration of salt (KCl) and pH by monitoring the growth kinetics of pepsin for the formation of Langmuir monolayer by using as little as possible pepsin molecules to build up ultra thin film and to measure the extent of denaturation. Significant changes of area/molecule, compressibility, rigidity and unfolding of pepsin are observed at optimized subphase than pure water subphase. Observations at optimal subphase are explained in context of the modified DLVO theory and the site dissociation model. FTIR analysis of amide band together with the observed surface morphology of pepsin film in FE-SEM images indicate that at optimal subphase the pepsin molecules modify their structures by incrementing the beta-structure, resulting into larger unfolding and inter-molecular aggregates.
Collapse
|
46
|
Kamilya T, Pal P, Mahato M, Talapatra G. Immobilization and the conformational study of phospholipid and phospholipid-protein vesicles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
47
|
Kamilya T, Pal P, Mahato M, Talapatra GB. Effect of Salt on the Formation of Alcohol-Dehydrogenease Monolayer: A Study by the Langmuir−Blodgett Technique. J Phys Chem B 2009; 113:5128-35. [DOI: 10.1021/jp9001059] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tapanendu Kamilya
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur −721 211, India
| | - Prabir Pal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur −721 211, India
| | - Mrityunjoy Mahato
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur −721 211, India
| | - G. B. Talapatra
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India, and Department of Physics, Narajole Raj College, Narajole, Paschim Medinipur −721 211, India
| |
Collapse
|
48
|
Herranz MÁ, Ehli C, Campidelli S, Gutiérrez M, Hug GL, Ohkubo K, Fukuzumi S, Prato M, Martín N, Guldi DM. Spectroscopic Characterization of Photolytically Generated Radical Ion Pairs in Single-Wall Carbon Nanotubes Bearing Surface-Immobilized Tetrathiafulvalenes. J Am Chem Soc 2007; 130:66-73. [DOI: 10.1021/ja073975t] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Ángeles Herranz
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Christian Ehli
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Stéphane Campidelli
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Miriam Gutiérrez
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Gordon L. Hug
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Kei Ohkubo
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Shunichi Fukuzumi
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Maurizio Prato
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Nazario Martín
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| | - Dirk M. Guldi
- Contribution from the Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain, Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany, Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa, 1, 34127 Trieste, Italy, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and
| |
Collapse
|
49
|
D'Souza F, Chitta R, Sandanayaka ASD, Subbaiyan NK, D'Souza L, Araki Y, Ito O. Supramolecular Carbon Nanotube-Fullerene Donor−Acceptor Hybrids for Photoinduced Electron Transfer. J Am Chem Soc 2007; 129:15865-71. [DOI: 10.1021/ja073773x] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Francis D'Souza
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Raghu Chitta
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Atula S. D. Sandanayaka
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Navaneetha K. Subbaiyan
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Lawrence D'Souza
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Yasuyuki Araki
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| | - Osamu Ito
- Department of Chemistry, Wichita State University, 1845 Fairmount, Wichita, Kansas 67260-0051, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Sendai, 980-8577, Japan, and Department of Chemical Engineering, University of Illinois at Chicago, 810 South Clinton, Chicago, Illinois 60607
| |
Collapse
|
50
|
Kamilya T, Pal P, Talapatra GB. Incorporation of ovalbumin within cationic octadecylamine monolayer and a comparative study with zwitterionic DPPC and anionic stearic acid monolayer. J Colloid Interface Sci 2007; 315:464-74. [PMID: 17669414 DOI: 10.1016/j.jcis.2007.06.084] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2007] [Revised: 06/14/2007] [Accepted: 06/28/2007] [Indexed: 11/29/2022]
Abstract
In this communication we demonstrated the incorporation of water-soluble surface-active protein OVA within an insoluble cationic ODA monolayer and compared with zwitterionic (DPPC) and anionic (SA) monolayer. The incorporation of OVA is found to be more in ODA as compared to that of DPPC and SA. The kinetics of protein adsorption in lipid monolayer gives the idea that unfolding of OVA is less in case of DPPC than SA and ODA. The pi-A isotherm and compressibility study gives the information about the different states of the protein-lipid mixed monolayer. At higher pressure, OVA tend to squeeze out from the lipids monolayer. High-resolution field emission scanning electron microscope (FE-SEM) images confirm this observation. The surface morphology of DPPC-OVA LB film is far better than ODA-OVA and SA-OVA LB film. OVA forms large irregular aggregates on SA and ODA monolayer. Fluorescence study reveals that protein structure is perturbed more in SA and ODA system compared to that of DPPC. The overall results indicate that DPPC monolayer is better to get protein lipid mixed film than SA and ODA monolayer.
Collapse
Affiliation(s)
- Tapanendu Kamilya
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | | | | |
Collapse
|