February 2013 – Faraday Discussions Blog

Archive for February, 2013

FD 160: Ion Specific Hofmeister Effects now published

27 Feb 2013

We are pleased to announce the publication of Faraday Discussion 160 on ion specific Hofmeister effects.

Ion Specific Hofmeister Effects In the volume you can find all the papers and exciting discussion from the conference held at Queen’s College, Oxford, UK in September 2012.

Here are justsome of the highlights:

Introductory Lecture: Interpreting and predicting Hofmeister salt ion and solute effects on biopolymer and model processes using the solute partitioning model
M. Thomas Record, Emily Guinn, Laurel Pegram and Michael Capp
DOI: 10.1039/C2FD20128C

Adsorption kinetics of non-ionic surfactants in micellar solutions: effects of added charge
Ci Yan, Anna Angus-Smyth and Colin D. Bain
DOI: 10.1039/C2FD20118F

Adsorption of solutes at liquid–vapor interfaces: insights from lattice gas models
Suriyanarayanan Vaikuntanathan, Patrick R. Shaffer and Phillip L. Geissler
DOI: 10.1039/C2FD20106B

Faraday Discussions are a unique opportunity to discuss your work with leading researchers in developing areas of physical chemistry, biophysical chemistry and chemical physics. The latest Impact Factor is 5.0.

All delegates have the opportunity to present their views on the Discussion papers and their own new research. All the presented papers and the discussion are published together in the Faraday Discussions volume.

Don’t miss out – find out more and take a look at future Faraday Discussions.

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You may also be interested in some of our upcoming Faraday Discussion meetings:

FD166: Self-Assembly of Biopolymers
16 – 18 September 2013, Bristol, UK
Poster abstract and early bird registration deadline 19^th July

FD167: Mesostructure and Dynamics in Liquids and Solutions
18 – 20 September 2013, Bristol, UK
Poster abstract deadline 19^th July
Early bird registration deadline 24th July

We’d love you to join us at a future meeting: more details on the Faraday Discussions events website.

Follow the latest journal news on Twitter or by signing up to our free table of contents e-alert.

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Also check out the latest research in Faraday Discussions’ sister journal Physical Chemistry Chemical Physics (PCCP):

Hofmeister series reversal for lysozyme by change in pH and salt concentration: insights from electrophoretic mobility measurements
Andrea Salis, Francesca Cugia, Drew F. Parsons, Barry W. Ninham and Maura Monduzzi
DOI: 10.1039/C2CP40150A

Effects of the anion salt nature on the rate constants of the aqueous proton exchange reactions
Jose M. Paredes, Andres Garzon, Luis Crovetto, Angel Orte, Sergio G. Lopez and Jose M. Alvarez-Pez
DOI: 10.1039/C2CP24058K

Specific ion effects in aqueous eletrolyte solutions confined within graphene sheets at the nanometric scale
J. Sala, E. Guàrdia and J. Martí
DOI: 10.1039/C2CP40537G

Or you can browse these recent PCCP themed issues and collections:

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Faraday Discussions most-read articles in 2012

25 Feb 2013

We are pleased to present the most read articles in Faraday Discussions in 2012.

Attending a Faraday Discussion is a unique opportunity to discuss your work with leading researchers in important areas of physical chemistry, biophysical chemistry and chemical physics. Faraday Discussions are a unique and high-impact series of international conferences. Each Discussion is on a specific “hot topic”, and 24 papers are presented and discussed by world class speakers. The 24 papers and discussion (including new research presented by any delegate) are published in the Faraday Discussions journal.

The journal is SCI indexed, and the latest Impact Factor is 5.0.

Join us in 2013 for some excellent discussions: http://rsc.li/fd-upcoming-meetings.

Top 25 most-read Faraday Discussions articles for 2012

Realizing artificial photosynthesis
Devens Gust, Thomas A. Moore and Ana L. Moore
DOI: 10.1039/C1FD00110H

Ionic Liquids: Past, present and future
C. Austen Angell, Younes Ansari and Zuofeng Zhao
DOI: 10.1039/C1FD00112D

Artificial photosynthesis for solar fuels
Stenbjörn Styring
DOI: 10.1039/C1FD00113B

Electron transfer kinetics in water splitting dye-sensitized solar cells based on core–shell oxide electrodes
Seung-Hyun Anna Lee, Yixin Zhao, Emil A. Hernandez-Pagan, Landy Blasdel, W. Justin Youngblood and Thomas E. Mallouk
DOI: 10.1039/C1FD00083G

Excitons and charges at organic semiconductor heterojunctions
Richard H. Friend, Matthew Phillips, Akshay Rao, Mark W. B. Wilson, Zhe Li and Christopher R. McNeill
DOI: 10.1039/C1FD00104C

Graphene-based supercapacitors in the parallel-plate electrode configuration: Ionic liquids versus organic electrolytes
Youngseon Shim, Hyung J. Kim and YounJoon Jung
DOI: 10.1039/C1FD00086A

Hydrogen evolution on nano-particulate transition metal sulfides
Jacob Bonde, Poul G. Moses, Thomas F. Jaramillo, Jens K. Nørskov and Ib Chorkendorff
DOI: 10.1039/B803857K

Development of highly efficient supramolecular CO₂ reduction photocatalysts with high turnover frequency and durability
Yusuke Tamaki, Katsuhiro Watanabe, Kazuhide Koike, Haruo Inoue, Tatsuki Morimoto and Osamu Ishitani
DOI: 10.1039/C1FD00091H

Design principles of photosynthetic light-harvesting
Graham R. Fleming, Gabriela S. Schlau-Cohen, Kapil Amarnath and Julia Zaks
DOI: 10.1039/C1FD00078K

Artificial leaf device for solar fuel production
Yutaka Amao, Naho Shuto, Kana Furuno, Asami Obata, Yoshiko Fuchino, Keiko Uemura, Tsutomu Kajino, Takeshi Sekito, Satoshi Iwai, Yasushi Miyamoto and Masatoshi Matsuda
DOI: 10.1039/C1FD00097G

Surface enhanced Raman spectroscopy: new materials, concepts, characterization tools, and applications
Jon A. Dieringer, Adam D. McFarland, Nilam C. Shah, Douglas A. Stuart, Alyson V. Whitney, Chanda R. Yonzon, Matthew A. Young, Xiaoyu Zhang and Richard P. Van Duyne
DOI: 10.1039/B513431P

Physical constraints on charge transport through bacterial nanowires
Nicholas F. Polizzi, Spiros S. Skourtis and David N. Beratan
DOI: 10.1039/C1FD00098E

A Ga₂O₃ underlayer as an isomorphic template for ultrathin hematite films toward efficient photoelectrochemical water splitting
Takashi Hisatomi, Jérémie Brillet, Maurin Cornuz, Florian Le Formal, Nicolas Tétreault, Kevin Sivula and Michael Grätzel
DOI: 10.1039/C1FD00103E

Micro-convection, dissipative structure and pattern formation in polymer blend solutions under temperature gradients
Takeshi Nambu, Yuji Yamauchi, Takahiro Kushiro and Shinichi Sakurai
DOI: 10.1039/B403108C

Light-driven water oxidation with a molecular tetra-cobalt(III) cubane cluster
Giuseppina La Ganga, Fausto Puntoriero, Sebastiano Campagna, Irene Bazzan, Serena Berardi, Marcella Bonchio, Andrea Sartorel, Mirco Natali and Franco Scandola
DOI: 10.1039/C1FD00093D

Kinetics of light-driven oxygen evolution at α-Fe₂O₃ electrodes
Laurence M. Peter, K. G. Upul Wijayantha and Asif A. Tahir
DOI: 10.1039/C1FD00079A

The interface ionic liquid(s)/electrode(s): In situ STM and AFM measurements
Frank Endres, Natalia Borisenko, Sherif Zein El Abedin, Robert Hayes and Rob Atkin
DOI: 10.1039/C1FD00050K

Copper dioxygen (bio)inorganic chemistry
Edward I. Solomon, Jake W. Ginsbach, David E. Heppner, Matthew T. Kieber-Emmons, Christian H. Kjaergaard, Pieter J. Smeets, Li Tian and Julia S. Woertink
DOI: 10.1039/C005500J

Simultaneous frequency and dissipation factor QCM measurements of biomolecular adsorption and cell adhesion
Michael Rodahl, Fredrik Höök, Claes Fredriksson, Craig A. Keller, Anatol Krozer, Peter Brzezinski, Marina Voinova and Bengt Kasemo
DOI: 10.1039/A703137H

Accumulative electron transfer: Multiple charge separation in artificial photosynthesis
Susanne Karlsson, Julien Boixel, Yann Pellegrin, Errol Blart, Hans-Christian Becker, Fabrice Odobel and Leif Hammarström
DOI: 10.1039/C1FD00089F

Colloidal metal oxide particles loaded with synthetic catalysts for solar H₂ production
Fezile Lakadamyali, Masaru Kato and Erwin Reisner
DOI: 10.1039/C1FD00077B

Nanoparticle catalysts with high energy surfaces and enhanced activity synthesized by electrochemical method
Zhi-You Zhou, Na Tian, Zhi-Zhong Huang, De-Jun Chen and Shi-Gang Sun
DOI: 10.1039/B803716G

Gold nanoparticle-polymer/biopolymer complexes for protein sensing
Daniel F. Moyano, Subinoy Rana, Uwe H. F. Bunz and Vincent M. Rotello
DOI: 10.1039/C1FD00024A

A novel self-healing supramolecular polymer system
Stefano Burattini, Howard M. Colquhoun, Barnaby W. Greenland and Wayne Hayes
DOI: 10.1039/B900859D

Bio-tribology
Duncan Dowson
DOI: 10.1039/C2FD20103H

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Filming the motions of individual lipids

22 Feb 2013

Super resolution microscopy breaks the diffraction limit. Professor Dr Stefan Hell is credited for the development of STED or stimulated emission depletion microscopy. In this paper arising from the Faraday Discussion on Lipids & Membrane Biophysics STED is used in combination with FCS or fluorescence correlation spectroscopy to follow the diffusion of dye labeled lipids in membrane model systems on glass and mica.

Super resolution microscopy is used to study the diffusion of labelled lipids, two labels are employed, one that localises in the liquid ordered and one that localises in the liquid disordered phase of the lipid membrane model. Through STED, and with the two new probes introduced, the rate of 2D diffusion in the membrane can be measured. As the localisation of the two probes is different, a map of the disordered and ordered domains can be generated.

by Dr Thomas Just Sørensen

Read this fascinating article which was presented as part of the Faraday Discussion on Lipids & Membrane Biophysics:

STED microscopy detects and quantifies liquid phase separation in lipid membranes using a new far-red emitting fluorescent phosphoglycerolipid analogue
Alf Honigmann, Veronika Mueller, Stefan W. Hell and Christian Eggeling
DOI: 10.1039/C2FD20107K

Read all the results and Discussion in the Lipids & Membrane Biophysics Discussion volume.

We’d love you to join us at a future meeting: more details on the Faraday Discussions events website.

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Register now for FD162: Fabrication, Structure and Reactivity of Anchored Nanoparticles

19 Feb 2013

We’d love you to join us for FD162: Fabrication, Structure and Reactivity of Anchored Nanoparticles which will take place in Berlin, Germany from 10-12 April 2013.

Check out the programme on the website – highlights include Gabor Somorjai (University of California at Berkeley) and Charlie Campbell (University of Washington Seattle) giving the opening and closing lectures.

Faraday Discussions are a unique and high-impact series of international conferences. Each Faraday Discussion is on a specific “hot topic”, and 24 papers are presented and discussed by world class speakers.

The 24 papers and discussion (including new research presented by any delegate) are published in the Faraday Discussions journal. The journal is SCI indexed, and the latest Impact Factor (IF) is 5.0

Attending a Faraday Discussion is a unique opportunity to discuss your work with leading researchers in important areas of physical chemistry, biophysical chemistry and chemical physics.

We hope to see you there! Register to attend by 15th March 2013.

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Ion Specific Hofmeister Effects: FD160

13 Feb 2013

Figure reproduced from the Introductory Lecture of FD160 (DOI: 10.1039/C2FD20128C)

If you take two glasses of water and dissolve sodium chloride in the one and sodium iodide in the other, I can tell you that in the first glass you have a deficiency of anions in the water-air interface and an accumulation of negative ions in the same interface in the latter glass. I can also tell you that if you dip a glass stirrer into one glass it will become negatively charged, where it in the other will get a positively charged. The last piece of wonder I can share is that if you use a plastic spoon instead the effects are reversed.

The examples I gave above are all examples of Hofmeister effects, where the nature of a small ion dictates specific events to occur in larger systems. The example with iodide and chloride are not the most extreme and the effects described above are small. The extreme cases include sulphate, perchlorate and hexafluorophosphate, the former is extremely hydrophilic and the two other are very lipophilic. Cations are an altogether different story all-together.

The importance of the Hofmeister effects are not to be underestimated as all biological processes and structures have to exist in ion-rich environments. Strip away the ions or introduce large quantities of an alien small ion and the processes and structures are disrupted. Killing an organism by introducing potassium is an easy experiment. Understanding the effects of chloride, bromide and sodium on every single piece of the biological machinery is much more challenging. The challenge is being met by the group of researchers who attended the 160^thFaraday Discussion on Ion Specific Hofmeister Effects. Their latest findings and a thorough introduction to the subject is published in the recent issue of Faraday Discussions.

Much, much more information and many insights can be gleaned in the themes issue of Faraday Discussion on Ion Specific Hofmeister Effects.

by Dr Thomas Just Sørensen

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Faraday Discussions Blog

Archive for February, 2013

FD 160: Ion Specific Hofmeister Effects now published

Faraday Discussions most-read articles in 2012

Filming the motions of individual lipids

Register now for FD162: Fabrication, Structure and Reactivity of Anchored Nanoparticles

Ion Specific Hofmeister Effects: FD160

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