In situ structure and force characterization of 2D nano-colloids at the air/water interface

We have developed a novel experimental method, which enables quantitative determination of interaction forces between interfacial nanoparticles as a function of the inter-particle distance at liquid interfaces.

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Characterization of the In Situ Structural and Interfacial Properties of the Cationic Hydrophobic Heteropolypeptide, KL4, in Lung Surfactant Bilayer and Monolayer Models at the Air−Water Interface: Implications for Pulmonary Surfactant Delivery

Molecular Pharmaceutics ◽

10.1021/mp700123p ◽

2008 ◽

Vol 5 (5) ◽

pp. 681-695 ◽

Cited By ~ 9

Author(s):

Heidi M. Mansour ◽

Srinivasan Damodaran ◽

George Zografi

Keyword(s):

Pulmonary Surfactant ◽

Lung Surfactant ◽

Interfacial Properties ◽

Water Interface ◽

Air Water Interface

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In Situ Characterization of Functional Purple Membrane Monolayers at the Air−Water Interface

Langmuir ◽

10.1021/la0356147 ◽

2004 ◽

Vol 20 (3) ◽

pp. 934-940 ◽

Cited By ~ 8

Author(s):

Mario Méthot ◽

Philippe Desmeules ◽

David Vaknin ◽

François Boucher ◽

Christian Salesse

Keyword(s):

Purple Membrane ◽

Water Interface ◽

In Situ Characterization ◽

Air Water Interface

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In-Situ Second-Harmonic Generation and Luminescence Measurements for Structural Characterization of Ruthenium−Polypyridine Complex Monolayers with Two and Four Aliphatic Tails at the Air/Water Interface

The Journal of Physical Chemistry B ◽

10.1021/jp983028u ◽

1998 ◽

Vol 102 (43) ◽

pp. 8569-8573 ◽

Cited By ~ 15

Author(s):

Takashi Nakano ◽

Yasuhiro Yamada ◽

Taku Matsuo ◽

Sunao Yamada

Keyword(s):

Second Harmonic Generation ◽

Harmonic Generation ◽

Structural Characterization ◽

Second Harmonic ◽

Water Interface ◽

Air Water Interface ◽

Ruthenium Polypyridine

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Determination of Chain Orientation in the Monolayers of Amino-Acid-Derived Schiff Base at the Air−Water Interface Using in Situ Infrared Reflection Absorption Spectroscopy

Langmuir ◽

10.1021/la702017p ◽

2007 ◽

Vol 23 (22) ◽

pp. 11034-11041 ◽

Cited By ~ 4

Author(s):

Huijin Liu ◽

Wangen Miao ◽

Xuezhong Du

Keyword(s):

Schiff Base ◽

Amino Acid ◽

Absorption Spectroscopy ◽

Water Interface ◽

Chain Orientation ◽

Infrared Reflection Absorption Spectroscopy ◽

Infrared Reflection ◽

Air Water Interface

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Development and Validation of an HPLC Method for Quantitative Determination of Seven Impurities in Orlistat Capsules and Characterization of Two Novel Impurities

Current Pharmaceutical Analysis ◽

10.2174/1573412911888151030120135 ◽

2015 ◽

Vol 12 (999) ◽

pp. 1-1 ◽

Cited By ~ 1

Author(s):

Wenning Yang ◽

Wei Peng ◽

Yang Liu ◽

Chengbo Hou ◽

Zhiqiang Luo ◽

...

Keyword(s):

Quantitative Determination ◽

Hplc Method ◽

Development And Validation

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Spin Crossover in Nickel(II) Tetraphenylporphyrinate via Forced Axial Coordination at the Air/Water Interface

Molecules ◽

10.3390/molecules26144155 ◽

2021 ◽

Vol 26 (14) ◽

pp. 4155

Author(s):

Alexander V. Shokurov ◽

Daria S. Kutsybala ◽

Andrey P. Kroitor ◽

Alexander A. Dmitrienko ◽

Alexander G. Martynov ◽

...

Keyword(s):

Spin State ◽

Spin Crossover ◽

High Spin State ◽

Water Interface ◽

Metal Centers ◽

Axial Coordination ◽

Vis Spectroscopy ◽

Air Water Interface ◽

Nickel Cation

Coordination-induced spin crossover (CISCO) in nickel(II) porphyrinates is an intriguing phenomenon that is interesting from both fundamental and practical standpoints. However, in most cases, realization of this effect requires extensive synthetic protocols or extreme concentrations of extra-ligands. Herein we show that CISCO effect can be prompted for the commonly available nickel(II) tetraphenylporphyrinate, NiTPP, upon deposition of this complex at the air/water interface together with a ruthenium(II) phthalocyaninate, CRPcRu(pyz)2, bearing two axial pyrazine ligands. The latter was used as a molecular guiderail to align Ni···Ru···Ni metal centers for pyrazine coordination upon lateral compression of the system, which helps bring the two macrocycles closer together and forces the formation of Ni–pyz bonds. The fact of Ni(II) porphyrinate switching from low- to high-spin state upon acquiring additional ligands can be conveniently observed in situ via reflection-absorption UV-vis spectroscopy. The reversible nature of this interaction allows for dissociation of Ni–pyz bonds, and thus, change of nickel cation spin state, upon expansion of the monolayer.

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