1
|
Li J, de Heer Kloots MHP, van Ewijk G, van Dijken DJ, de Vos WM, van der Gucht J. Evaporation-Induced Polyelectrolyte Complexation: The Role of Base Volatility and Cosolvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2531-2542. [PMID: 38258284 PMCID: PMC10851664 DOI: 10.1021/acs.langmuir.3c02656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
Film formation is a vital step for coating applications where a homogeneous, defect-free solid phase should be obtained, starting from a liquid casting formulation. Recently, an alternative waterborne-coating approach was proposed, based on the formation of a polyelectrolyte complex film. In this approach, an evaporating base induces a pH change during drying that initiates the complexation of oppositely charged polyelectrolytes, followed by further densification. In previous studies, ammonia was used as the evaporative base, leading to relatively fast evaporation and resulting in films showing significant brittleness, which tended to crack at low relative humidity or larger thicknesses. We hypothesize that slower complexation and/or evaporation can reduce the problematic stress build-up in the prepared polyelectrolyte complex coatings. For this reason, we studied the changes in the film formation process when there are different bases and cosolvents. We found that reducing the evaporation rate by changing ammonia to the slower evaporating dimethylamine or by adding DMSO as a cosolvent, led to less internal stress build-up during film formation, which could be beneficial for film application. Indeed, films prepared with ammonia showed cracking after 1 h, while films prepared with dimethylamine only showed cracking after one month. The fast evaporation of ammonia was also found to cause a temporary turbid phase, indicating phase separation, while for the slower evaporating bases, this did not occur. All prepared films remained sensitive to humidity, which poses the next challenge for these promising coatings.
Collapse
Affiliation(s)
- Jiaying Li
- Membrane
Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | | | - Gerard van Ewijk
- AkzoNobel,
Decorative Coatings B.V., Rijksstraatweg 31, 2171 AJ Sassenheim, The Netherlands
| | | | - Wiebe M. de Vos
- Membrane
Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Faculty of Science and Technology, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jasper van der Gucht
- Physical
Chemistry and Soft Matter, Wageningen University
and Research, 6708 WEWageningen, The Netherlands
| |
Collapse
|
2
|
Cesaria M, Taurino A, Manera MG, Minunni M, Scarano S, Rella R. Gold nanoholes fabricated by colloidal lithography: novel insights into nanofabrication, short-range correlation and optical properties. NANOSCALE 2019; 11:8416-8432. [PMID: 30985849 DOI: 10.1039/c8nr09911a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Colloidal lithography is widely used as a low cost and large-area deposition approach, alternative to the conventional small-area expensive lithographic techniques, for the fabrication of short-range ordered sub-wavelength metallic nanostructures. This paper contributes to the understanding of the impact of the fabrication protocol of a colloidal mask on the optical and sensing properties of short range-ordered nanohole (NH) distributions fabricated by colloidal lithography in optically thin (20 nm thick) gold films. We consider polystyrene nanospheres (PS-NSPs) with a nominal diameter of 80 nm, electrostatically adsorbed from a salt-free colloidal solution onto a polydiallyldimethylammonium (PDDA) countercharged monolayer. By avoiding the conventional polyelectrolyte multilayer and based on the interplay between the deposition times of both PDDA and PS-NSPs, we demonstrate effective simplification of the commonly applied deposition protocol and effective tuning of the NH-to-NH spacing (dNN) with negligible agglomeration. Comparison with NH samples prepared by salt-containing colloidal solutions points out the negative impact of salt addition on the optical properties. The effective tuning of dNN obtained by our protocol demonstrates highly correlated disorder under unsaturated adsorption and allows a discussion on the analogies of the optical response between long- and short- range ordered NH systems, which is a still debated topic. By Fast Fourier Transform of autocorrelation images of scanning electron microscopy micrographs we demonstrate quantitatively, rather than in principle, the correspondence between an inherent ordering length-scale and dNN. As optical transducers for detecting refractive index changes, our samples exhibit significant bulk sensitivity (∼309 nm RIU-1) in the framework of short range ordered NH systems.
Collapse
Affiliation(s)
- Maura Cesaria
- Institute for Microelectronics and Microsystems, IMM-CNR, Via Monteroni, I-73100 Lecce, Italy.
| | | | | | | | | | | |
Collapse
|
3
|
He C, Ye T, Teng W, Fang Z, Ruan WS, Liu G, Chen H, Sun J, Hui L, Sheng F, Pan D, Yang C, Zheng Y, Luo MB, Yao K, Wang B. Bioinspired Shear-Flow-Driven Layer-by-Layer in Situ Self-Assembly. ACS NANO 2019; 13:1910-1922. [PMID: 30747513 DOI: 10.1021/acsnano.8b08151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Layer-by-layer (LbL) assembly is widely applied as a coating technique for the nanoscale control of architecture and related properties. However, its translational applications are limited by the time-consuming and laborious nature of the process. Inspired by the blood-clotting process, herein, we develop a shear-flow-driven LbL (SF-LbL) self-assembly approach that accelerates the adsorption rate of macromolecules by mechanically configuring the polymer chain via a coil-stretch transition, which effectively simplifies and speeds the diffusion-controlled assembly process. The structural characteristics and surface homogeneity of the SF-LbL films are improved, and diverse three-dimensional structures can be achieved. Functional SF-LbL-assembled surfaces for corneal modification are successfully fabricated, and the surface of wounded rat corneas and skin can be directly decorated in situ with SF-LbL nanofilms due to the advantages of this approach. Furthermore, in situ SF-LbL self-assembly has promise as a simple approach for the wound dressing for interventional therapeutics in the clinic, as illustrated by the successful in situ fabrication of drug-free layers consisting of chitosan and heparin on the dorsal skin of diabetic mice to rescue defective wound healing. This bioinspired self-assembly approach is expected to provide a robust and versatile platform with which to explore the surface engineering of nanofilms in science, engineering, and medicine.
Collapse
Affiliation(s)
- Chuanjiang He
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| | - Tingting Ye
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| | | | | | | | - Guowu Liu
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| | | | - Jizeng Sun
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| | - Lanlan Hui
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| | | | | | - Chunming Yang
- Shanghai Synchrotron Radiation Facility , Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201204 , China
| | | | | | | | - Ben Wang
- Institute of Translational Medicine , Zhejiang University , Hangzhou 310029 , China
| |
Collapse
|
4
|
Ge A, Matsusaki M, Qiao L, Akashi M, Ye S. Salt Effects on Surface Structures of Polyelectrolyte Multilayers (PEMs) Investigated by Vibrational Sum Frequency Generation (SFG) Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3803-3810. [PMID: 27045932 DOI: 10.1021/acs.langmuir.5b04765] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sum frequency generation (SFG) vibrational spectroscopy was employed to investigate the surface structures of polyelectrolyte multilayers (PEMs) constructed by sequentially alternating adsorption of poly(diallyldimethylammonium chloride) (PDDA) and poly(styrenesulfonate) (PSS). It was found that the surface structures and surface charge density of the as-deposited PEMs of PDDA/PSS significantly depend on the concentration of sodium chloride (NaCl) present in the polyelectrolyte solutions. Furthermore, it was found that the surface structure of the as-deposited PEMs is in a metastable state and will reach the equilibrium state by diffusion of the polyelectrolyte chain after an aging process, resulting in a polyelectrolyte mixture on the PEM surfaces.
Collapse
Affiliation(s)
- Aimin Ge
- Institute for Catalysis, Hokkaido University , Sapporo 001-0021, Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University , Osaka 565-0871, Japan
| | - Lin Qiao
- Institute for Catalysis, Hokkaido University , Sapporo 001-0021, Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University , Osaka 565-0871, Japan
| | - Shen Ye
- Institute for Catalysis, Hokkaido University , Sapporo 001-0021, Japan
| |
Collapse
|
5
|
Hagen DA, Foster B, Stevens B, Grunlan JC. Shift-Time Polyelectrolyte Multilayer Assembly: Fast Film Growth and High Gas Barrier with Fewer Layers by Adjusting Deposition Time. ACS Macro Lett 2014; 3:663-666. [PMID: 35590764 DOI: 10.1021/mz500276r] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In an effort to reduce deposition time and number of layers needed to achieve high gas barrier, multilayer films were deposited using 1 s exposures for the first four bilayers (BLs) and 1 min for subsequent dips. Thin-film assemblies of polyethylenimine (PEI) and poly(acrylic acid) (PAA) were deposited onto poly(ethylene terephthalate) [PET] using the layer-by-layer deposition process. Varying the exposure time of PET to polyelectrolyte solutions (i.e., dip time) significantly alters the growth rate of the multilayer thin films. The PEI/PAA system grows linearly with 1 s dip times and exponentially with longer times. Eight bilayers (650 nm) were required to achieve an undetectable oxygen transmission rate (<0.005 cm3/(m2·day)) using 1 min deposition steps, but this barrier was obtained with only 6 BLs (552 nm) using 1s deposition of the initial layers, reducing total deposition time by 73%. This "shift-time" concept makes layer-by-layer assembly much faster and more commercially feasible.
Collapse
Affiliation(s)
- David A. Hagen
- Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Brendan Foster
- Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Bart Stevens
- Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Jaime C. Grunlan
- Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843, United States
| |
Collapse
|
6
|
Xiang F, Tzeng P, Sawyer JS, Regev O, Grunlan JC. Improving the gas barrier property of clay-polymer multilayer thin films using shorter deposition times. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6040-6048. [PMID: 24281553 DOI: 10.1021/am403445z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Relatively fast exposure times (5 s) to aqueous solutions were found to improve the gas barrier of clay-polymer thin films prepared using layer-by-layer (LbL) assembly. Contrary to the common belief about deposition time (i.e., the longer the better), oxygen transmission rates (OTRs) of these nano-brick-wall assemblies are improved by reducing exposure time (from 1 min to 5 s). Regardless of composition, LbL films fabricated using shorter deposition time are always thicker in the first few layers, which correspond to greater clay spacing and lower OTR. A quadlayer (QL) assembly consisting of three repeat units of branched polyethylenimine (PEI), poly(acrylic acid) (PAA), PEI and montmorillonite (MMT) clay is only 24 nm thick when deposited with 1 min exposure to each ingredient. Reducing the exposure time of polyelectrolytes to 5 s not only increases this film thickness to 55 nm but also reduces the oxygen transmission rate (OTR) to 0.05 cm3/(m2 day atm), which is 2 orders of magnitude lower than the same film made using 1 min exposures. A conceptual model is proposed to explain the differences in growth and barrier, which are linked to polyelectrolyte relaxation, desorption, and interdiffusion. The universality of these findings is further exemplified by depositing clays with varying aspect ratios. This ability to quickly deposit high-barrier nanocomposite thin films opens up a tremendous opportunity in terms of commercial-scale processing of LbL assemblies.
Collapse
Affiliation(s)
- Fangming Xiang
- Department of Mechanical Engineering and ‡Department of Chemical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | | | | | | | | |
Collapse
|
7
|
Fu Y, Li SJ, Xu J, Yang M, Zhang JD, Jiao YH, Zhang JC, Zhang K, Jia YG. Facile and efficient approach to speed up layer-by-layer assembly: dipping in agitated solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:672-677. [PMID: 21166437 DOI: 10.1021/la104524k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A facile and efficient approach has been developed to speed up the fabrication of LBL films through sequential dipping in vigorously agitated solutions. By this agitated-dipping (AD) LBL technique, the multilayer films of PAH and PSS were fabricated. The resulting films were explored by UV-vis spectroscopy, X-ray reflectivity, and AFM. Meanwhile, the comparison of the AD and conventional LBL films was made, which demonstrated that AD LBL can decrease dipping time by more than 15 times without reducing film quality remarkably. In addition, to verify the generality of AD LBL, we studied the AD LBL films of PDDA/PSS and PAH/PAA preliminarily as well. AD LBL promotes the efficiency of conventional LBL greatly while preserving its most advantages, such as simplicity, cheapness, precise control, universality in substrates, recycling use of sample solutions, and so on. It would be a promising alternative to build up LBL films rapidly.
Collapse
Affiliation(s)
- Yu Fu
- College of Sciences, Northeastern University, Shenyang 110004, PR China.
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Kinsinger MI, Buck ME, Campos F, Lynn DM, Abbott NL. Dynamic ordering transitions of liquid crystals driven by interfacial complexes formed between polyanions and amphiphilic polyamines. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:13231-6. [PMID: 18991416 PMCID: PMC3245549 DOI: 10.1021/la803376u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We report the design of an amphiphilic polyamine (polymer 1) based on poly(2-alkenyl azlactone) that strongly couples the formation of polyelectrolyte complexes at aqueous/liquid crystal (LC) interfaces to ordering transitions in the LC. We demonstrate that the addition of a strong anionic polyelectrolyte to aqueous solutions in contact with polymer 1-laden LC interfaces (prepared by Langmuir-Schaefer transfer of monolayers of polymer 1 onto micrometer-thick films of nematic LC) triggers ordering transitions in the LCs. We further demonstrate that changes in the ordering of the LCs (i) are driven by electrostatic interactions between the polyelectrolytes, (ii) involve multivalent interactions between the polyelectrolytes, and (iii) are triggered by reorganization of the hydrophobic side chains of amphiphilic polymer 1 upon formation of the interfacial complexes. The results presented in this paper lead us to conclude that ordering transitions in LCs can be used to provide insights into the structure and dynamics of interfacial complexes formed between polyelectrolytes.
Collapse
Affiliation(s)
- Michael I Kinsinger
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, USA
| | | | | | | | | |
Collapse
|
9
|
Zhu Z, Feng X, Penlidis A. Layer-by-layer self-assembled polyelectrolyte membranes for solvent dehydration by pervaporation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2007. [DOI: 10.1016/j.msec.2005.12.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Vagharchakian L, Desbat B, Hénon S. Adsorption of Weak Polyelectrolytes to an Oppositely Charged Langmuir Film: Change in the Conformation of the Adsorbed Molecules and Saturation of the Ionization Degree. Macromolecules 2004. [DOI: 10.1021/ma048540u] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurianne Vagharchakian
- Laboratoire de Biorhéologie et Hydrodynamique Physicochimique, CNRS UMR7057, Matiére et Systémes Complexes, FR2438 Université Paris 7, case courrier 7056, 2 place Jussieu, 75251 Paris Cedex 05, France, and Laboratoire de Physico-Chimie Moléculaire, CNRS UMR 5803, Université Bordeaux 1, 33405 Talence Cedex, France
| | - Bernard Desbat
- Laboratoire de Biorhéologie et Hydrodynamique Physicochimique, CNRS UMR7057, Matiére et Systémes Complexes, FR2438 Université Paris 7, case courrier 7056, 2 place Jussieu, 75251 Paris Cedex 05, France, and Laboratoire de Physico-Chimie Moléculaire, CNRS UMR 5803, Université Bordeaux 1, 33405 Talence Cedex, France
| | - Sylvie Hénon
- Laboratoire de Biorhéologie et Hydrodynamique Physicochimique, CNRS UMR7057, Matiére et Systémes Complexes, FR2438 Université Paris 7, case courrier 7056, 2 place Jussieu, 75251 Paris Cedex 05, France, and Laboratoire de Physico-Chimie Moléculaire, CNRS UMR 5803, Université Bordeaux 1, 33405 Talence Cedex, France
| |
Collapse
|
11
|
Lulevich VV, Nordschild S, Vinogradova OI. Investigation of Molecular Weight and Aging Effects on the Stiffness of Polyelectrolyte Multilayer Microcapsules. Macromolecules 2004. [DOI: 10.1021/ma049140+] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Müller MG, Hardy EH, Vogt PS, Bratschi C, Kirchner B, Huber H, Searles DJ. Calculation of the Deuteron Quadrupole Relaxation Rate in a Mixture of Water and Dimethyl Sulfoxide. J Am Chem Soc 2004; 126:4704-10. [PMID: 15070389 DOI: 10.1021/ja0397759] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An approach is presented that allows NMR relaxation rates to be determined for a complex mixture, and it is applied to a dimethyl sulfoxide/water solution. This approach is novel for such systems, having only been used for simple systems such as atomic liquids or atomic ions in liquids until now. It involves use of a predetermined, quantum mechanical, multidimensional property surface in a simulation. The results are used in conjunction with the simulated rotational correlation time to calculate the deuteron quadrupole coupling constant (DQCC), in an analogous approach to the one used by experimentalists, and to examine the surprising experimental findings for the composition dependence of the DQCC in the dimethyl sulfoxide/water mixture. Experiments have suggested that the DQCC for a mixture of 5% dimethyl sulfoxide in water is close to the DQCC of ice, whereas its value increases to a value close to the gas value with further dilution.(1) The results are further critically analyzed using combinations of different experimental and theoretical results from the literature.
Collapse
Affiliation(s)
- Markus G Müller
- Department of Chemistry, University of Basel, Klingelbergstr. 80, CH-4056 Basel, Switzerland
| | | | | | | | | | | | | |
Collapse
|
13
|
Mermut O, Barrett CJ. Effects of Charge Density and Counterions on the Assembly of Polyelectrolyte Multilayers. J Phys Chem B 2003. [DOI: 10.1021/jp027278t] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ozzy Mermut
- Department of Chemistry and Center for the Physics of Materials, McGill University, 801 Sherbrooke Street West, Montreal H3A 2K6, Canada
| | - Christopher J. Barrett
- Department of Chemistry and Center for the Physics of Materials, McGill University, 801 Sherbrooke Street West, Montreal H3A 2K6, Canada
| |
Collapse
|
14
|
Breit M, Gao M, von Plessen G, Lemmer U, Feldmann J, Cundiff ST. Formation dynamics of layer-by-layer self-assembled films probed by second harmonic generation. J Chem Phys 2002. [DOI: 10.1063/1.1495839] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
Koetse M, Laschewsky A, Jonas A, Verbiest T. Orientation of functional groups in polyelectrolyte multilayers studied by second-harmonic generation (SHG). Colloids Surf A Physicochem Eng Asp 2002. [DOI: 10.1016/s0927-7757(01)00940-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
Shin DN, Wijnen JW, Engberts JBFN, Wakisaka A. On the Origin of Microheterogeneity: A Mass Spectrometric Study of Dimethyl Sulfoxide−Water Binary Mixture. J Phys Chem B 2001. [DOI: 10.1021/jp0111517] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Nam Shin
- National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki 305-8569, Japan, and Department of Organic and Molecular Inorganic Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jan W. Wijnen
- National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki 305-8569, Japan, and Department of Organic and Molecular Inorganic Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jan B. F. N. Engberts
- National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki 305-8569, Japan, and Department of Organic and Molecular Inorganic Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Akihiro Wakisaka
- National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki 305-8569, Japan, and Department of Organic and Molecular Inorganic Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| |
Collapse
|
17
|
Casson JL, McBranch DW, Robinson JM, Wang HL, Roberts JB, Chiarelli PA, Johal MS. Reversal of Interfacial Dipole Orientation in Polyelectrolyte Superlattices Due to Polycationic Layers. J Phys Chem B 2000. [DOI: 10.1021/jp0029616] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Hsing-Lin Wang
- Biosciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | | | | | | |
Collapse
|
18
|
Kim J, Cremer PS. IR−Visible SFG Investigations of Interfacial Water Structure upon Polyelectrolyte Adsorption at the Solid/Liquid Interface. J Am Chem Soc 2000. [DOI: 10.1021/ja003215h] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joonyeong Kim
- Department of Chemistry, Texas A&M University P.O. Box 30012, College Station, Texas 77842-3012
| | - Paul S. Cremer
- Department of Chemistry, Texas A&M University P.O. Box 30012, College Station, Texas 77842-3012
| |
Collapse
|