Friday, July 10, 2009

Macromolecules 2009, 42, 3761-3766

Efficient Synthesis of Narrowly Dispersed Brush Polymers via Living Ring-Opening Metathesis Polymerization of Macromonomers

Yan Xia, Julia A. Kornfield, and Robert H. Grubbs*
Arnold and Mabel Beckman Laboratory of Chemical Synthesis, DiVision of Chemistry and Chemical
Engineering, California Institute of Technology, Pasadena, California 91125

Macromolecules 2009, 42, 4127–4133

Thiol-functionalized ROMP polymers via Sacrificial Synthesis

Stefan Hilf and Andreas F. M. Kilbinger*
Institut fur Organische Chemie, Johannes Gutenberg-University at Mainz, Duesbergweg 10-14, D-55099 Mainz, Germany

Macromolecules 2009, 42, 4023–4027

ROMP from ROMP: A New Approach to Graft Copolymer Synthesis

Matthew J. Allen,†,§ Kittikhun Wangkanont,† Ronald T. Raines,†,‡ and Laura L. Kiessling*,†,‡
†Department of Chemistry and ‡Department of Biochemistry, University of Wisconsin;Madison, Madison,
Wisconsin 53706. §Present address: Department of Chemistry, Wayne State University, Detroit, MI 48202

Wednesday, July 8, 2009

Macromolecules ASAP

Macrocycle-Terminated Core-Cross-Linked Star Polymers: Synthesis and
Characterization

Yun Peng,† Hewen Liu,*,† Xingyuan Zhang,† Shiyong Liu,† and Yuesheng Li‡

Soft Matter, 2009, 5, 2347–2351

Temperature and redox responsive hydrogels from ABA triblock copolymers prepared by RAFT polymerization

Andrew P. Vogt and Brent S. Sumerlin*

Soft Matter, 2009, 5, 2648–2657

Smart hydrogels based on double responsive triblock terpolymers

Stefan Reinicke,a Joachim Schmelz,a Alain Lapp,b Matthias Karg,c Thomas Hellwegc and Holger Schmalz

Tuesday, July 7, 2009

Angew. Chem. Int. Ed. 2009, 48, 4589 –4593

Multicompartmental Microcylinders
Srijanani Bhaskar, Jonathon Hitt, Sei-Won Laura Chang, and Joerg Lahann*

Angew. Chem. Int. Ed. 2009, 48, 4508 –4512

A Supramolecularly Assisted Transformation of Block Copolymer Micelles into Nanotubes
Sung Ho Kim, Fredrik Nederberg, Robert Jakobs, Jeremy P. K. Tan, Kazuki Fukushima, Alshakim Nelson, E. W. Meijer, Yi Yan Yang, and James L. Hedrick*

Angew. Chem. Int. Ed. 2009, 48, 4594 –4597

Toroidal Micelles of Uniform Size from Diblock Copolymers
Haiying Huang, Bonghoon Chung, Jueun Jung, Hae-Woong Park, and Taihyun Chang*

Angew. Chem. Int. Ed. 2009, 48, 5125 –5128

Suprapolymer Structures from Nanostructured Polymer Particles
Takeshi Higuchi,* Atsunori Tajima, Kiwamu Motoyoshi, Hiroshi Yabu,* and Masatsugu Shimomura

Angew. Chem. Int. Ed. 2009, 48, 4900 – 4908

Click Chemistry beyond Metal-Catalyzed Cycloaddition
C. Remzi Becer, Richard Hoogenboom, and Ulrich S. Schubert*

Angew. Chem. Int. Ed. 2009, 48, 5330 –5333

Fast Alkene Functionalization In Vivo by Photoclick Chemistry: HOMO Lifting of Nitrile Imine Dipoles
Yizhong Wang, Wenjiao Song, Wen J. Hu, and Qing Lin*

Angew. Chem. Int. Ed. 2009, 48, 5170 –5173

Hydrogen-Bonding Catalysts Based on Fluorinated Alcohol Derivatives for Living Polymerization
Olivier Coulembier,Daniel P. Sanders,Alshakim Nelson, Andrew N. Hollenbeck, Hans W. Horn, Julia E. Rice, Masaki Fujiwara, Philippe Dubois, and James L. Hedrick*

Angew. Chem. Int. Ed. 2009,48, 5187 –5190

Adapting N-Heterocyclic Carbene/Azide Coupling Chemistry for Polymer Synthesis: Enabling Access to Aromatic Polytriazenes
Daniel J. Coady, Dimitri M. Khramov, Brent C. Norris, Andrew G. Tennyson, and Christopher W. Bielawski*

Science, 324, 19 June, 2009, 1525

A Chronic Need for IL-21
Lisa D. Johnson and Stephen C. Jameson

An [(NHC)(NHCEWG)RuCl2(CHPh)] Complex for the Efficient Formation of Sterically Hindered Olefins by Ring-Closing Metathesis

Tim Vorfalt, Steffen Leuthur, and Herbert Plenio*
Angew. Chem. Int. Ed. 2009, 48, 5191 –5194

Nano Letters, Vol. 9, No. 6

Block Copolymer Nanostructures Mapped by Far-Field Optics

Chaitanya K. Ullal, Roman Schmidt, Stefan W. Hell and Alexander Egner

pp 2497–2500

Chem. Eur. J. 2009, 15, 6107 – 6111

High-Yield Synthesis of Uniform Star Polymers—Is Controlled Radical
Polymerization Always Needed?

Haifeng Gao and Krzysztof Matyjaszewski

Chem. Eur. J. 2009, 15, 6605 – 6611

Supramolecular Alternating Block Copolymers via Metal Coordination

Si Kyung Yang,[a, b] Ashootosh V. Ambade,[a] and Marcus Weck

Bioconjugate Chem. 2009, 20, 1002–1009

Design, Synthesis, and Imaging of Small Amphiphilic Rhenium and
99mTechnetium Tricarbonyl Complexes

Eszter Boros,†,§ Urs O. Ha¨feli,‡ Brian O. Patrick,† Michael J. Adam,*,§ and Chris Orvig*,†

Bioconjugate Chem. 2009, 20, 1122–1128

End-Functionalized Polymers and Junction-Functionalized Diblock
Copolymers Via RAFT Chain Extension with Maleimido Monomers

Scott M. Henry, Anthony J. Convertine, Danielle S. W. Benoit, Allan S. Hoffman, and Patrick S. Stayton*

Bioconjugate Chem. 2009, 20, 1100–1111

Lamellarin D Bioconjugates I: Synthesis and Cellular Internalization of
PEG-Derivatives

Daniel Pla,†,‡ Andre´s Francesch,§ Pilar Calvo,§ Carmen Cuevas,§ Rosa Aligue´, Fernando Albericio,*,⊥,†,‡ and Mercedes A´ lvarez*,#,

J. Mater. Chem., 2009, 19, 3819–3831

Antimicrobial surfaces and their potential in reducing the role of the inanimate
environment in the incidence of hospital-acquired infections

Kristopher Page,ab Michael Wilsonb and Ivan P. Parkin*a

J. Mater. Chem., 2009, 19, 4523–4528

Synthesis, structure and magnetic property of a new organo-templated
mixed-valent iron(II, III) borophosphate†

Weiting Yang, Jiyang Li, Qinhe Pan, Hongzhu Xing, Yan Chen, Jihong Yu* and Ruren Xu

Improving Grubbs’ II type ruthenium catalysts by appropriately modifying the N-heterocyclic carbene ligand

Ludovic Vieille-Petit, Xinjun Luan, Michele Gatti, Sascha Blumentritt, Anthony Linden, Herve´ Clavier, Steven P. Nolanb and Reto Dorta
Chem. Commun., 2009, 3783–3785

Monday, July 6, 2009

Antibacterial cyclic D,L-a-glycopeptides

Leila Motiei, Shai Rahimipour, Desiree A. Thayer, Chi-Huey Wong and M. Reza Ghadiri
Chem. Commun., 2009, 3693–3695

Gold nanoring arrays from responsive block copolymer templates

Li Wang, Franck Montagne, Patrik Hoffmannb and Raphael Pugina
Chem. Commun., 2009, 3798–3800

Several Suzuki coupling reactions

1. Synthesis of the Isoxazolo[4,3,2-de]phenanthridinone Moiety of the Parnafungins
Organic letters, 2009, 11, 2936

2. Heteroaryl Ethers by Oxidative Palladium Catalysis of Pyridotriazol-1-yloxy Pyrimidines with
Arylboronic Acids
Organic letters, 2009, 11, 2511

3. A Triarylphosphine Ligand Bearing Dodeca(ethylene glycol) Chains: Enhanced Efficiency in the Palladium-Catalyzed Suzuki-Miyaura Coupling Reaction
Organic letters, 2009, 11, 2121

4. Trifunctional N,N,O-Terdentate Amido/Pyridyl Carboxylate Ligated Pd(II) Complexes for Heck and Suzuki Reactions
J. O. C., 2009, 74, 4882

SCIENCE, VOL 324, 26 JUNE 2009,1637

Antibiotics in Nature: Beyond Biological Warfare
CHRISTINE MLOT

Science, 325, 3rd July 2009, 73

Self-Assembling Sequence-Adaptive Peptide Nucleic Acids
Yasuyuki Ura et al.

Adv. Funct. Mater. 2009,19, 1–8

Spontaneous Lamellar Alignment in Thickness-Modulated Block Copolymer Films
Hoon Kim, Hyung Min Lee, Joo-Hyung Lee, Seung-Woo Son, Seong-Jun Jeong, Sumi Lee, Dong Il Lee, Sin Ung Kwak, Hawoong Jeong, Hyunjung Shin, Jun-Bo Yoon, Oleg D. Lavrentovich, and Sang Ouk Kim

ACS Nano, 2009, 3 (6), pp 1423–1430

Polymer-Assisted Direct Deposition of Uniform Carbon Nanotube Bundle Networks for High Performance Transparent Electrodes

Abstract:

Flexible transparent electrodes are crucial for touch screen, flat panel display, and solar cell technologies. While carbon nanotube network electrodes show promise, characteristically poor dispersion properties have limited their practicality. We report that addition of small amounts of conjugated polymer to nanotube dispersions enables straightforward fabrication of uniform network electrodes by spin-coating and simultaneous tuning of parameters such as bundle size and density. After treatment in thionyl chloride, electrodes have sheet resistances competitive with other reported carbon nanotube based transparent electrodes to date.

ACS Nano, 2009, 3 (6), pp 1335–1344

Homogeneous Conjugation of Peptides onto Gold Nanoparticles Enhances Macrophage Response

Abstract:

Murine bone marrow macrophages were able to recognize gold nanoparticle peptide conjugates, while peptides or nanoparticles alone were not recognized. Consequently, in the presence of conjugates, macrophage proliferation was stopped and pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6, as well as nitric oxide synthase (NOS2) were induced. Furthermore, macrophage activation by gold nanoparticles conjugated to different peptides appeared to be rather independent of peptide length and polarity, but dependent on peptide pattern at the nanoparticle surface. Correspondingly, the biochemical type of response also depended on the type of conjugated peptide and could be correlated with the degree of ordering in the peptide coating. These findings help to illustrate the basic requirements involved in medical nanoparticle conjugate design to either activate the immune system or hide from it in order to reach their targets before being removed by phagocytes.