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Nicolella Z, Okamoto Y, Watanabe NM, Thompson GL, Umakoshi H. Significance of in situ quantitative membrane property-morphology relation (QmPMR) analysis. SOFT MATTER 2024; 20:4935-4949. [PMID: 38873752 DOI: 10.1039/d4sm00253a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Deformation of the cell membrane is well understood from the viewpoint of protein interactions and free energy balance. However, the various dynamic properties of the membrane, such as lipid packing and hydrophobicity, and their relationship with cell membrane deformation are unknown. Therefore, the deformation of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and oleic acid (OA) giant unilamellar vesicles (GUVs) was induced by heating and cooling cycles, and time-lapse analysis was conducted based on the membrane hydrophobicity and physical parameters of "single-parent" and "daughter" vesicles. Fluorescence ratiometric analysis by simultaneous dual-wavelength detection revealed the variation of different hydrophilic GUVs and enabled inferences of the "daughter" vesicle composition and the "parent" membrane's local composition during deformation; the "daughter" vesicle composition of OA was lower than that of the "parents", and lateral movement of OA was the primary contributor to the formation of the "daughter" vesicles. Thus, our findings and the newly developed methodology, named in situ quantitative membrane property-morphology relation (QmPMR) analysis, would provide new insights into cell deformation and accelerate research on both deformation and its related events, such as budding and birthing.
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Affiliation(s)
- Zachary Nicolella
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
| | - Yukihiro Okamoto
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
| | - Nozomi Morishita Watanabe
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
| | - Gary Lee Thompson
- Rowan University, Rowan Hall, Room 333 70 Sewell St., Ste. E Glassboro, NJ 08028, USA
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
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2
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Fu R, Ramamoorthy A. 17O Solid-State NMR Spectroscopy of Lipid Membranes. J Phys Chem B 2024; 128:3527-3537. [PMID: 38568422 DOI: 10.1021/acs.jpcb.4c01016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Despite the limitations posed by poor sensitivity, studies have reported the unique advantages of 17O based NMR spectroscopy to study systems existing in liquid, solid, or semisolid states. 17O NMR studies have exploited the remarkable sensitivity of quadrupole coupling and chemical shift anisotropy tensors to the local environment in the characterization of a variety of intra- and intermolecular interactions and motion. Recent studies have considerably expanded the use of 17O NMR to study dynamic intermolecular interactions associated with some of the challenging biological systems under magic angle spinning (MAS) and aligned conditions. The very fast relaxing nature of 17O has been well utilized in cellular and in vivo MRS (magnetic resonance spectroscopy) and MRI (magnetic resonance imaging) applications. The main focus of this Review is to highlight the new developments in the biological solids with a detailed discussion for a few selected examples including membrane proteins and nanodiscs. In addition to the unique benefits and limitations, the remaining challenges to overcome, and the impacts of higher magnetic fields and sensitivity enhancement techniques are discussed.
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Affiliation(s)
- Riqiang Fu
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| | - Ayyalusamy Ramamoorthy
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
- Department of Chemical and Biomedical Engineering, Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida 32310, United States
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3
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Fandiño-Devia E, Santa-González GA, Klaiss-Luna MC, Manrique-Moreno M. Study of the Membrane Activity of the Synthetic Peptide ∆M3 Against Extended-Spectrum β-lactamase Escherichia coli Isolates. J Membr Biol 2024; 257:51-61. [PMID: 38315239 PMCID: PMC11006780 DOI: 10.1007/s00232-024-00306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024]
Abstract
Escherichia coli is the most common microorganism causing nosocomial or community-acquired bacteremia, and extended-spectrum β-lactamase-producing Escherichia coli isolates are identified worldwide with increasing frequency. For this reason, it is necessary to evaluate potential new molecules like antimicrobial peptides. They are recognized for their biological potential which makes them promising candidates in the fight against infections. The goal of this research was to evaluate the potential of the synthetic peptide ΔM3 on several extended-spectrum β-lactamase producing E. coli isolates. The antimicrobial and cytotoxic activity of the peptide was spectrophotometrically determined. Additionally, the capacity of the peptide to interact with the bacterial membrane was monitored by fluorescence microscopy and infrared spectroscopy. The results demonstrated that the synthetic peptide is active against Escherichia coli isolates at concentrations similar to Meropenem. On the other hand, no cytotoxic effect was observed in HaCaT keratinocyte cells even at 10 times the minimal inhibitory concentration. Microscopy results showed a permeabilizing effect of the peptide on the bacteria. The infrared results showed that ΔM3 showed affinity for the lipids of the microorganism's membrane. The results suggest that the ∆M3 interacts with the negatively charged lipids from the E. coli by a disturbing effect on membrane. Finally, the secondary structure experiments of the peptide showed a random structure in solution that did not change during the interaction with the membranes.
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Affiliation(s)
- Estefanía Fandiño-Devia
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Gloria A Santa-González
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, A.A. 54959, Medellín, 050010, Colombia
| | - Maria C Klaiss-Luna
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Marcela Manrique-Moreno
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia.
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4
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Kaur H, Garg M, Tomar D, Singh S, Jena KC. Role of tungsten disulfide quantum dots in specific protein-protein interactions at air-water interface. J Chem Phys 2024; 160:084705. [PMID: 38411235 DOI: 10.1063/5.0187563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/05/2024] [Indexed: 02/28/2024] Open
Abstract
The intriguing network of antibody-antigen (Ab-Ag) interactions is highly governed by environmental perturbations and the nature of biomolecular interaction. Protein-protein interactions (PPIs) have potential applications in developing protein-adsorption-based sensors and nano-scale materials. Therefore, characterizing PPIs in the presence of a nanomaterial at the molecular level becomes imperative. The present work involves the investigation of antiferritin-ferritin (Ab-Ag) protein interactions under the influence of tungsten disulfide quantum dots (WS2 QDs). Isothermal calorimetry and contact angle measurements validated the strong influence of WS2 QDs on Ab-Ag interactions. The interfacial signatures of nano-bio-interactions were evaluated using sum frequency generation vibration spectroscopy (SFG-VS) at the air-water interface. Our SFG results reveal a variation in the tilt angle of methyl groups by ∼12° ± 2° for the Ab-Ag system in the presence of WS2 QDs. The results illustrated an enhanced ordering of water molecules in the presence of QDs, which underpins the active role of interfacial water molecules during nano-bio-interactions. We have also witnessed a differential impact of QDs on Ab-Ag by raising the concentration of the Ab-Ag combination, which showcased an increased inter-molecular interaction among the Ab and Ag molecules and a minimal influence on the methyl tilt angle. These findings suggest the formation of stronger and ordered Ab-Ag complexes upon introducing WS2 QDs in the aqueous medium and signify the potentiality of WS2 QDs relevant to protein-based sensing assays.
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Affiliation(s)
- Harsharan Kaur
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Mayank Garg
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Chandigarh 160030, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Deepak Tomar
- Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Suman Singh
- CSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Chandigarh 160030, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kailash C Jena
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
- Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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5
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Azzian MIM, Mohamad SF, Abd Rahim NMFH, Abdul Manaf MAA, Ramesh DDA, Asogan TA, Ismail NH, Wan Salleh WN. Radiation‐Induced Admicellar Graft Polymerization of 2‐Hydroxyethyl Methacrylate onto Polyvinylidene Fluoride Membranes Using an Electron Beam Accelerator. Chem Eng Technol 2023. [DOI: 10.1002/ceat.202300014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 08/03/2023] [Indexed: 09/02/2023]
Abstract
AbstractThe efficiency of admicellar graft polymerization in functionalizing polyvinylidene fluoride (PVDF) membranes was explored. The effect of 2‐hydroxyethyl methacrylate (HEMA) concentration and the absorbed dose was investigated using a simultaneous method of radiation‐induced graft polymerization. The degree of grafting increased with raising the absorbed dose and HEMA concentration. The Fourier transform infrared (FTIR) peak for C–O stretch and the asymmetric and symmetric stretching of the C–O–C bridge, respectively, proved the presence of poly(2‐hydroxyethyl methacrylate) (PHEMA) on the modified PVDF. As the grafting yield increased, rougher surfaces were observed. According to contact angle analysis, the grafted membrane with a higher grafting yield outperformed the low grafting yield membrane in terms of water flux and hydrophilicity.
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Affiliation(s)
- Muhammad Irfan Mustaqim Azzian
- Malaysia Nuclear Agency Radiation Processing and Technology Division 43000 Bangi Selangor Malaysia
- Universiti Teknologi Malaysia Advanced Membrane Technology Research Centre (AMTEC) Faculty of Chemical and Energy Engineering 81310 Johor Bahru Johor Malaysia
| | - Siti Fatahiyah Mohamad
- Malaysia Nuclear Agency Radiation Processing and Technology Division 43000 Bangi Selangor Malaysia
| | | | | | - Devi Durgaashini A/P Ramesh
- Universiti Teknologi Malaysia Advanced Membrane Technology Research Centre (AMTEC) Faculty of Chemical and Energy Engineering 81310 Johor Bahru Johor Malaysia
| | - Thirunaukkarasu A/L Asogan
- Universiti Teknologi Malaysia Advanced Membrane Technology Research Centre (AMTEC) Faculty of Chemical and Energy Engineering 81310 Johor Bahru Johor Malaysia
| | - Nor Hafiza Ismail
- Universiti Teknologi Malaysia Advanced Membrane Technology Research Centre (AMTEC) Faculty of Chemical and Energy Engineering 81310 Johor Bahru Johor Malaysia
| | - Wan Norharyati Wan Salleh
- Universiti Teknologi Malaysia Advanced Membrane Technology Research Centre (AMTEC) Faculty of Chemical and Energy Engineering 81310 Johor Bahru Johor Malaysia
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6
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Lv Z, Xue P, Xie T, Zhao J, Tian S, Liu H, Qi Y, Sun S, Lv X. High-performing PVDF membranes modified by Na+ MMT/ionic liquids (ILs) with different chain lengths: dye adsorption and separation from O/W emulsion. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Abriyanto H, Susanto H, Maharani T, Filardli AMI, Desiriani R, Aryanti N. Synergistic Effect of Chitosan and Metal Oxide Additives on Improving the Organic and Biofouling Resistance of Polyethersulfone Ultrafiltration Membranes. ACS OMEGA 2022; 7:46066-46078. [PMID: 36570250 PMCID: PMC9773804 DOI: 10.1021/acsomega.2c03685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
The combination of chitosan and metal oxides was utilized as an addition to improve the fouling resistance of polyethersulfone (PES) ultrafiltration membranes. Pure water flux, membrane hydrophilicity by the contact angle, scanning electron micrographs, and Fourier-transform infrared spectra were used to characterize the membranes. With the addition of metal oxides, the modified membrane's water flux increased. The PES membrane with 0.25% wt chitosan and 2.0% wt AgNO3 had the highest flux and antibacterial activity among the membranes tested. Because of its potential to improve membrane hydrophilicity, the water flux increased with the addition of chitosan and AgNO3. Because of the improved hydrophilicity, the contact angle reduced as chitosan and Ag loading was increased. The PES-chitosan-Ag2O (from AgNO3 2.0% wt) membrane had high antibacterial activity against Escherichia coli and Staphylococcus aureus, whereas the PES-2.0% wt Ag membrane did not show the same result. Finally, the addition of chitosan in the PES-Ag membrane increased the membrane's antibacterial activity substantially.
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Affiliation(s)
- Herlambang Abriyanto
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
- Membrane
Research Center (Mer-C), PUI Membrane Central Laboratory for Research
and Service, Diponegoro University, Semarang50275, Indonesia
| | - Heru Susanto
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
- Membrane
Research Center (Mer-C), PUI Membrane Central Laboratory for Research
and Service, Diponegoro University, Semarang50275, Indonesia
| | - Talita Maharani
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
| | - Abdullah M. I. Filardli
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
- Membrane
Research Center (Mer-C), PUI Membrane Central Laboratory for Research
and Service, Diponegoro University, Semarang50275, Indonesia
| | - Ria Desiriani
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
- Membrane
Research Center (Mer-C), PUI Membrane Central Laboratory for Research
and Service, Diponegoro University, Semarang50275, Indonesia
| | - Nita Aryanti
- Department
of Chemical Engineering, Faculty of Engineering, Diponegoro University, No. 1 Prof Soedarto, SH Road, Tembalang-Semarang50275, Indonesia
- Membrane
Research Center (Mer-C), PUI Membrane Central Laboratory for Research
and Service, Diponegoro University, Semarang50275, Indonesia
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8
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Watanabe N, Watase S, Kadonishi N, Okamoto Y, Umakoshi H. Revealed Properties of Various Self-Assemblies in Two Catanionic Surfactant Systems in Relation to Their Polarity and Molecular Packing State. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14768-14778. [PMID: 36437713 DOI: 10.1021/acs.langmuir.2c02411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A catanionic surfactant system is an aqueous solution or dispersion of cationic and anionic surfactants that spontaneously self-assemble into structures such as micelles, vesicles, and coacervates. Their structural diversity varies depending on the ratios of cationic and anionic surfactants (compositions), the chemical structure of the constituent molecules, etc. Herein, two types of catanionic surfactant systems were systematically characterized: (i) cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS), both typical ionic surfactants; and (ii) dodecylmethylimidazolium ammonium bromide ([C12mim]Br) and SDS, where the former is an ionic liquid. By observing the sample appearance, turbidity, and particle size, the phase state of each system was analyzed according to the total concentration of surfactants and the molar ratio of cationic surfactants to the total concentration. Especially, for specific compositions of catanionic surfactant vesicles (cataniosome), the closed structure of the vesicles was confirmed through calcein entrapment and release detected with a fluorescence assay. The polarities of the interface of the prepared self-assemblies were evaluated using a fluorescence probe, Laurdan. The packing state of the molecules in the formed self-assembly structure was estimated using Raman spectroscopy. The results clearly indicate consistent phase-transition behavior for the CTAB-SDS (i) and [C12mim]Br-SDS (ii) systems, depending on the total surfactant concentration and composition, while the membrane properties of the two systems differed. The cataniosome formed in the CTAB-SDS system was in a tightly packed membrane state and more hydrophobic than that formed in the [C12mim]Br-SDS system owing to the difference in the structure of the constituting molecule: [C12mim]Br has a larger head group and shorter acyl chain than CTAB. The self-assembly properties evaluated in this study were compared with those of typical lipid membranes, liposomes (lipid vesicles), to determine a possible application of the catanionic systems with various self-assembly formulations.
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Affiliation(s)
- Nozomi Watanabe
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka5608531, Japan
| | - Shuto Watase
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka5608531, Japan
| | - Nanaki Kadonishi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka5608531, Japan
| | - Yukihiro Okamoto
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka5608531, Japan
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka5608531, Japan
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9
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Rozza AM, Bakó I, Oláh J. Theoretical insights into water network of B-DNA duplex with Watson-Crick and Hoogsteen base pairing geometries. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Zhang R, Cross TA, Peng X, Fu R. Surprising Rigidity of Functionally Important Water Molecules Buried in the Lipid Headgroup Region. J Am Chem Soc 2022; 144:7881-7888. [PMID: 35439409 PMCID: PMC9165019 DOI: 10.1021/jacs.2c02145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Understanding water dynamics and structure is an important topic in biological systems. It is generally held in the literature that the interfacial water of hydrated phospholipids is highly mobile, in fast exchange with the bulk water ranging from the nano- to femtosecond timescale. Although nuclear magnetic resonance (NMR) is a powerful tool for structural and dynamic studies, direct probing of interfacial water in hydrated phospholipids is formidably challenging due to the extreme population difference between bulk and interfacial water. We developed a novel 17O solid-state NMR technique in combination with an ultra-high-field magnet (35.2 T) to directly probe the functionally important interfacial water. By selectively suppressing the dominant bulk water signal, we observed two distinct water species in the headgroup region of hydrated dimyristoylphosphatidylcholine (DMPC) lipid bilayers for the first time. One water species denoted as "confined water" is chemically and dynamically different from the bulk water (∼0.17 ppm downfield and a slightly shorter spin-lattice relaxation time). Another water species denoted as "bound water" has severely restricted motion and a distinct chemical shift (∼12 ppm upfield). Additionally, the bulk water is not as "free" as pure water, resulting from the fast exchange with the water molecules that weakly and transiently interact with the lipid choline groups. These new discoveries clearly indicate the existence of the interfacial water molecules that are relatively stable over the NMR timescale (on the order of milliseconds), providing an opportunity to characterize water dynamics on the millisecond or slower timescale in biomacromolecules.
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Affiliation(s)
- Rongfu Zhang
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States.,Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32301, United States
| | - Timothy A Cross
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States.,Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32301, United States
| | - Xinhua Peng
- CAS Key Laboratory of Microscale Magnetic Resonance and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Riqiang Fu
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
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11
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Rungrod A, Kapanya A, Punyodom W, Molloy R, Mahomed A, Somsunan R. Synthesis and characterization of semi-IPN hydrogels composed of sodium 2-acrylamido-2-methylpropanesulfonate and poly(ε-caprolactone) diol for controlled drug delivery. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Pal S, Chattopadhyay A. Hydration Dynamics in Biological Membranes: Emerging Applications of Terahertz Spectroscopy. J Phys Chem Lett 2021; 12:9697-9709. [PMID: 34590862 DOI: 10.1021/acs.jpclett.1c02576] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Water drives the spontaneous self-assembly of lipids and proteins into quasi two-dimensional biological membranes that act as catalytic scaffolds for numerous processes central to life. However, the functional relevance of hydration in membrane biology is only beginning to be addressed, predominantly because of challenges associated with direct measurements of hydration microstructure and dynamics in a biological milieu. Our recent work on the novel interplay of membrane electrostatics and crowding in shaping membrane hydration dynamics utilizing terahertz (THz) spectroscopy represents an important step in this context. In this Perspective, we provide a glimpse into the ever-broadening functional landscape of hydration dynamics in biological membranes in the backdrop of the unique physical chemistry of water molecules. We further highlight the immense (and largely untapped) potential of the THz toolbox in addressing contemporary problems in membrane biology, while emphasizing the adaptability of the analytical framework reported recently by us to such studies.
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Affiliation(s)
- Sreetama Pal
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007, India
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13
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Dehghankar M, Mohammadi T, Tavakolmoghadam M, Tofighy MA. Polyvinylidene Fluoride/Nanoclays (Cloisite 30B and Palygorskite) Mixed Matrix Membranes with Improved Performance and Antifouling Properties. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mona Dehghankar
- Research and Technology Center of Membrane Processes, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, 16846 Tehran, Iran
- Center of Excellence for Membrane Science and Technology, Iran University of Science and Technology (IUST), Narmak, Tehran 16846, Iran
| | - Toraj Mohammadi
- Research and Technology Center of Membrane Processes, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, 16846 Tehran, Iran
- Center of Excellence for Membrane Science and Technology, Iran University of Science and Technology (IUST), Narmak, Tehran 16846, Iran
| | - Maryam Tavakolmoghadam
- Polymer, Chemical and Petrochemical Science and Technology Division, Research Institute of Petroleum Industry, Tehran 1485733111, Iran
| | - Maryam Ahmadzadeh Tofighy
- Research and Technology Center of Membrane Processes, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, 16846 Tehran, Iran
- Center of Excellence for Membrane Science and Technology, Iran University of Science and Technology (IUST), Narmak, Tehran 16846, Iran
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14
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Voloshin VP, Medvedev NN. ORIENTATION OF WATER MOLECULES NEAR A GLOBULAR PROTEIN. J STRUCT CHEM+ 2021. [DOI: 10.1134/s002247662105005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Maiti A, Daschakraborty S. Effect of TMAO on the Structure and Phase Transition of Lipid Membranes: Potential Role of TMAO in Stabilizing Cell Membranes under Osmotic Stress. J Phys Chem B 2021; 125:1167-1180. [PMID: 33481606 DOI: 10.1021/acs.jpcb.0c08335] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Extremophiles adopt strategies to deal with different environmental stresses, some of which are severely damaging to their cell membrane. To combat high osmotic stress, deep-sea organisms synthesize osmolytes, small polar organic molecules, like trimethylamine-N-oxide (TMAO), and incorporate them in the cell. TMAO is known to protect cells from high osmotic or hydrostatic pressure. Several experimental and simulation studies have revealed the roles of such osmolytes on stabilizing proteins. In contrast, the effect of osmolytes on the lipid membrane is poorly understood and broadly debated. A recent experiment has found strong evidence of the possible role of TMAO in stabilizing lipid membranes. Using the molecular dynamics (MD) simulation technique, we have demonstrated the effect of TMAO on two saturated fully hydrated lipid membranes in their fluid and gel phases. We have captured the impact of TMAO's concentration on the membrane's structural properties along with the fluid/gel phase transition temperatures. On increasing the concentration of TMAO, we see a substantial increase in the packing density of the membrane (estimated by area, thickness, and volume) and enhancement in the orientational order of lipid molecules. Having repulsive interaction with the lipid head group, the TMAO molecules are expelled away from the membrane surface, which induces dehydration of the lipid head groups, increasing the packing density. The addition of TMAO also increases the fluid/gel phase transition temperature of the membrane. All of these results are in close agreement with the experimental observations. This study, therefore, provides a molecular-level understanding of how TMAO can influence the cell membrane of deep-sea organisms and help in combating the osmotic stress condition.
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Affiliation(s)
- Archita Maiti
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar 801106, India
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16
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Martínez-García E, Fraile S, Rodríguez Espeso D, Vecchietti D, Bertoni G, de Lorenzo V. Naked Bacterium: Emerging Properties of a Surfome-Streamlined Pseudomonas putida Strain. ACS Synth Biol 2020; 9:2477-2492. [PMID: 32786355 DOI: 10.1021/acssynbio.0c00272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Environmental bacteria are most often endowed with native surface-attachment programs that frequently conflict with efforts to engineer biofilms and synthetic communities with given tridimensional architectures. In this work, we report the editing of the genome of Pseudomonas putida KT2440 for stripping the cells of most outer-facing structures of the bacterial envelope that mediate motion, binding to surfaces, and biofilm formation. To this end, 23 segments of the P. putida chromosome encoding a suite of such functions were deleted, resulting in the surface-naked strain EM371, the physical properties of which changed dramatically in respect to the wild type counterpart. As a consequence, surface-edited P. putida cells were unable to form biofilms on solid supports and, because of the swimming deficiency and other alterations, showed a much faster sedimentation in liquid media. Surface-naked bacteria were then used as carriers of interacting partners (e.g., Jun-Fos domains) ectopically expressed by means of an autotransporter display system on the now easily accessible cell envelope. Abstraction of individual bacteria as adhesin-coated spherocylinders enabled rigorous quantitative description of the multicell interplay brought about by thereby engineered physical interactions. The model was then applied to parametrize the data extracted from automated analysis of confocal microscopy images of the experimentally assembled bacterial flocks for analyzing their structure and distribution. The resulting data not only corroborated the value of P. putida EM371 over the parental strain as a platform for display artificial adhesins but also provided a strategy for rational engineering of catalytic communities.
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Affiliation(s)
- Esteban Martínez-García
- Systems Biology Program, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, 28049 Madrid, Spain
| | - Sofía Fraile
- Systems Biology Program, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, 28049 Madrid, Spain
| | - David Rodríguez Espeso
- Systems Biology Program, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, 28049 Madrid, Spain
| | - Davide Vecchietti
- Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Giovanni Bertoni
- Department of Biosciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Víctor de Lorenzo
- Systems Biology Program, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, 28049 Madrid, Spain
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17
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Yamada T, Seto H. Quasi-Elastic Neutron Scattering Studies on Hydration Water in Phospholipid Membranes. Front Chem 2020; 8:8. [PMID: 32039163 PMCID: PMC6993101 DOI: 10.3389/fchem.2020.00008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/07/2020] [Indexed: 11/20/2022] Open
Abstract
The dynamic behavior of hydration water in phospholipid membranes has been investigated to understand the relationship between water and biological molecules using various experimental techniques. Quasi-elastic neutron scattering (QENS) is an effective method for this purpose because the dynamic behaviors of both water and lipid molecules could be identified by using selective deuteration. In addition, the measurable ranges from the 10−12 to 10−9 s time scale and the 10−11 to 10−8 m length scale are suitable to investigate the slowing down of water molecules due to their interaction with lipid membranes. In this mini-review, QENS experiments on the dynamic behavior of hydration water molecules in neighboring phospholipid membranes are summarized.
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Affiliation(s)
- Takeshi Yamada
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society, Tokai, Japan
| | - Hideki Seto
- Institute of Materials Structure Science/J-PARC Center, High Energy Accelerator Research Organization, Tsukuba, Japan
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18
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Deplazes E, Sarrami F, Poger D. Effect of H3O+ on the Structure and Dynamics of Water at the Interface with Phospholipid Bilayers. J Phys Chem B 2020; 124:1361-1373. [DOI: 10.1021/acs.jpcb.9b10169] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Evelyne Deplazes
- School of Life Sciences, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
- School of Pharmacy and Biomedical Sciences, Curtin Institute for Computation, Curtin University, Perth, Western Australia 6845, Australia
| | - Farzaneh Sarrami
- School of Chemistry and Biochemistry, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - David Poger
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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19
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Choe C, Schleusener J, Choe S, Lademann J, Darvin ME. A modification for the calculation of water depth profiles in oil-treated skin by in vivo confocal Raman microscopy. JOURNAL OF BIOPHOTONICS 2020; 13:e201960106. [PMID: 31602797 DOI: 10.1002/jbio.201960106] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/30/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
In this study, an extended calculation method for the determination of the water profiles in oil-treated skin is proposed, which is based on the calculation of the ratio between the Raman band intensities of water (3350-3550 cm-1 ) and keratin Amide I at 1650 cm-1 . The proposed method is compared with the conventional method based on the ratio of the Raman band intensities of water (3350-3550 cm-1 ) and keratin at 2930 cm-1 . The conventional method creates artifacts in the depth profiles of the water concentration in oil-treated skin, showing a lower amount of water in the upper and intermediate layers of the stratum corneum, which is due to the superposition of oil- and keratin-related Raman bands at 2930 cm-1 . The proposed extended method shows no artifacts and has the potential to determine the water depth profiles after topical application of formulations on the skin.
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Affiliation(s)
- Chunsik Choe
- Biomedical Materials Division, Faculty of Material Science, Kim Il Sung University, Pyongyang, DPR Korea
| | - Johannes Schleusener
- Department of Dermatology, Venerology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Sehyok Choe
- Biomedical Materials Division, Faculty of Material Science, Kim Il Sung University, Pyongyang, DPR Korea
| | - Jürgen Lademann
- Department of Dermatology, Venerology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Maxim E Darvin
- Department of Dermatology, Venerology and Allergology, Center of Experimental and Applied Cutaneous Physiology, Charité Universitätsmedizin Berlin, Berlin, Germany
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