Search Results - "Kundu, Achintya"
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1
The Bend+Libration Combination Band Is an Intrinsic, Collective, and Strongly Solute-Dependent Reporter on the Hydrogen Bonding Network of Liquid Water
Published in The journal of physical chemistry. B (08-03-2018)“…Water is an extensively self-associated liquid due to its extensive hydrogen bond (H-bond) forming ability. The resulting H-bonded network fluid exhibits…”
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Journal Article -
2
Evaluation of pH at Charged Lipid/Water Interfaces by Heterodyne-Detected Electronic Sum Frequency Generation
Published in The journal of physical chemistry letters (20-02-2014)“…Although the interface pH at a biological membrane is important for biological processes at the membrane, there has been no systematic study to evaluate it. We…”
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3
Contact Ion Pairs of Phosphate Groups in Water: Two-Dimensional Infrared Spectroscopy of Dimethyl Phosphate and ab Initio Simulations
Published in The journal of physical chemistry letters (17-10-2019)“…The interaction of phosphate groups with ions in an aqueous environment has a strong impact on the structure and folding processes of DNA and RNA. The dynamic…”
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4
Effect of Osmolytes on the Conformational Behavior of a Macromolecule in a Cytoplasm-like Crowded Environment: A Femtosecond Mid-IR Pump–Probe Spectroscopy Study
Published in The journal of physical chemistry letters (15-02-2018)“…Osmolytes found endogenously in almost all living beings play an important role in regulating cell volume under harsh environment. Here, to address the…”
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5
Water Structure at the Lipid Multibilayer Surface: Anionic Versus Cationic Head Group Effects
Published in The journal of physical chemistry. B (09-06-2016)“…Membrane water interface is a potential reaction site for many biochemical reactions. Therefore, a molecular level understanding of water structure and…”
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6
Change of Hydration Patterns upon RNA Melting Probed by Excitations of Phosphate Backbone Vibrations
Published in The journal of physical chemistry. B (19-03-2020)“…The water hydration shell has a decisive impact on the structural and functional properties of RNA. Changes of the RNA structure upon melting and in…”
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7
Water Hydrogen-Bonding Network Structure and Dynamics at Phospholipid Multibilayer Surface: Femtosecond Mid-IR Pump–Probe Spectroscopy
Published in The journal of physical chemistry letters (03-03-2016)“…The water hydrogen-bonding network at a lipid bilayer surface is crucial to understanding membrane structures and its functional activities. With a…”
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8
Hydrated Excess Protons in Acetonitrile/Water Mixtures: Solvation Species and Ultrafast Proton Motions
Published in The journal of physical chemistry letters (02-05-2019)“…The solvation structure of protons in aqueous media is highly relevant to electric properties and to proton transport in liquids and membranes. At ambient…”
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9
Agreement between Experimentally and Theoretically Estimated Orientational Distributions of Solutes at the Air/Water Interface
Published in Journal of physical chemistry. C (02-05-2013)“…Linear and nonlinear polarization-sensitive spectroscopic techniques are employed to determine the orientational distributions of solute molecules adsorbed at…”
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10
Ultrafast dynamics of hydrated excess protons in CH3CN:H2O mixtures
Published in EPJ Web of Conferences (01-01-2019)“…In a combined experimental and theoretical 2D-IR and pump-probe study we determine how ultrafast solvent motions govern the vibrational dynamics of the…”
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Conference Proceeding Journal Article -
11
Local pH at Nonionic and Zwitterionic Lipid/Water Interfaces Revealed by Heterodyne-Detected Electronic Sum-Frequency Generation: A Unified View to Predict Interfacial pH of Biomembranes
Published in The journal of physical chemistry. B (22-06-2023)“…For biomembranes, which are composed of neutral as well as charged lipids, the local pH at lipid/water interfaces is extremely important in their structural…”
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Journal Article -
12
Water Structure and Dynamics in the Stern Layer of Micelles: Femtosecond Mid-Infrared Pump-Probe Spectroscopy Study
Published in The journal of physical chemistry. B (27-06-2019)“…Molecular-level understanding of the water structure and dynamics in the Stern layer of micelles is important to elucidate the active role of water in…”
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Journal Article -
13
Structure and Dynamics of ATP and the ATP-Zn 2+ Complex in Solution
Published in The journal of physical chemistry letters (03-10-2024)“…Despite the crucial role of ATP in life and artificial life-like applications, fundamental aspects relevant to its function, such as its conformational…”
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Journal Article -
14
Structure and Dynamics of ATP and the ATP–Zn2+ Complex in Solution
Published in The journal of physical chemistry letters (03-10-2024)“…Despite the crucial role of ATP in life and artificial life-like applications, fundamental aspects relevant to its function, such as its conformational…”
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Journal Article -
15
How Molecular Crowding Differs from Macromolecular Crowding: A Femtosecond Mid-Infrared Pump–Probe Study
Published in The journal of physical chemistry letters (15-11-2018)“…Crowding is an inherent property of living systems in which biochemical processes occur in highly concentrated solutions of various finite-sized species of…”
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Journal Article -
16
Contact pairs of RNA with magnesium ions-electrostatics beyond the Poisson-Boltzmann equation
Published in Biophysical journal (07-12-2021)“…The electrostatic interaction of RNA with its aqueous environment is most relevant for defining macromolecular structure and biological function. The…”
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Journal Article -
17
Magnesium Contact Ions Stabilize the Tertiary Structure of Transfer RNA: Electrostatics Mapped by Two-Dimensional Infrared Spectra and Theoretical Simulations
Published in The journal of physical chemistry. B (28-01-2021)“…Ions interacting with hydrated RNA play a central role in defining its secondary and tertiary structure. While spatial arrangements of ions, water molecules,…”
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Journal Article -
18
Role of Solvent Water in the Temperature-Induced Self-Assembly of a Triblock Copolymer
Published in The journal of physical chemistry letters (06-07-2017)“…Water-soluble triblock copolymers have received much attention in industrial applications and scientific fields. We here show that femtosecond mid-IR…”
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Journal Article -
19
Water Dynamics in Cytoplasm-Like Crowded Environment Correlates with the Conformational Transition of the Macromolecular Crowder
Published in Journal of the American Chemical Society (14-12-2016)“…Polyethylene glycol (PEG) is a unique polymer material with enormous applicability in many industrial and scientific fields. Here, its use as macromolecular…”
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Journal Article -
20
Phosphate Vibrations Probe Electric Fields in Hydrated Biomolecules: Spectroscopy, Dynamics, and Interactions
Published in The journal of physical chemistry. B (22-04-2021)“…Electric interactions have a strong impact on the structure and dynamics of biomolecules in their native water environment. Given the variety of water…”
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Journal Article