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5,993 Newest Publications in langmuir
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Transition-Metal Salt-Containing Silica Nanocapsules Elaborated via Salt-Induced Interfacial Deposition in Inverse Miniemulsions as Precursor to Functional Hollow Silica Particles
17-05-2013 | Zhihai Cao; Liu Yang; Quanlin Ye; Qinmin Cui; Dongming Qi; Ulrich Ziener, Langmuir, 2013
Aqueous core–silica shell nanocapsules were successfully prepared using liquid droplets containing transition-metal salt as templates in inverse miniemulsions. The formation of the silica shell was attributed to the interfacial deposition of silica species induced by the presence of the ...
Drug-Loaded Fluorescent Cubosomes: Versatile Nanoparticles for Potential Theranostic Applications
17-05-2013 | Sergio Murgia; Sara Bonacchi; Angela M. Falchi; Sandrina Lampis; Vito Lippolis; Valeria Meli; Maura Monduzzi; Luca P ..., Langmuir, 2013
In this work, monoolein-based cubosomes were doped with two fluorescent probes, namely, fluorescein and dansyl, properly modified with a hydrocarbon chain to increase their encapsulation efficiency within the monoolein palisade. The same nanocarriers were also loaded with quercetin, a ...
Orientation Distribution of Highly Oriented Type I Collagen Deposited on Flat Samples with Different Geometries
17-05-2013 | Qamrun Nahar; David Minh Luan Quach; Behafarid Darvish; Harvey A. Goldberg; Bernd Grohe; Silvia Mittler, Langmuir, 2013
The structural arrangement of type I collagen in vivo is critical for the normal functioning of tissues, such as bone, cornea, tendons, and blood vessels. At present, there are no established low-cost techniques for fabricating aligned collagen structures for applications in regenerative ...
Non-Contact AFM Imaging in Water Using Electrically Driven Cantilever Vibration
17-05-2013 | David J. Marchand; Erik Hsiao; Seong H. Kim, Langmuir, 2013
An atomic force microscopy (AFM) imaging mode is presented that can simultaneously record surface topography and local electrical properties in aqueous solutions without mechanical contact between the AFM tip and the sample. The interaction between the electrically biased tip and the grounded ...
Tuning Self-Assembled Nanostructures Through Enzymatic Degradation of a Peptide Amphiphile
17-05-2013 | Ashkan Dehsorkhi; Ian W. Hamley; Jani Seitsonen; Janne Ruokolainen, Langmuir, 2013
The enzymatic cleavage of a peptide amphiphile (PA) is investigated. The self-assembly of the cleaved products is distinct from that of the PA substrate. The PA C16-KKFFVLK is cleaved by α-chymotrypsin at two sites leading to products C16-KKF with FVLK and C16-KKFF with VLK. The PA ...
Stepwise Molding, Etching, and Imprinting to Form Libraries of Nanopatterned Substrates
17-05-2013 | Zhi Zhao; Yangjun Cai; Wei-Ssu Liao; Paul S. Cremer, Langmuir, 2013
Herein, we describe a novel colloidal lithographic strategy for the stepwise patterning of planar substrates with numerous complex and unique designs. In conjunction with colloidal self-assembly, imprint molding, and capillary force lithography, reactive ion etching was used to create complex ...
Analysis of Responsive Polymer Films Using Surface Acoustic Waves
17-05-2013 | Jiaxi Cui; Jagoba Iturri; Ulrich Götz; Miguel Jimenez; Aránzazu del Campo, Langmuir, 2013
The Surface Acoustic Wave (SAW) technique is applied for the first time to quantify the properties of a responsive polymer brush layer. Using a single SAW chip, the response of five different brush compositions to several pH changes was monitored in parallel in a single run. These results ...
Self-Assembly and Near Perfect Macroscopic Alignment of Fluorescent Triangulenium Salt in Spin-Cast Thin Films on PTFE
17-05-2013 | Fredrik Westerlund; Henrik T. Lemke; Tue Hassenkam; Jens B. Simonsen; Bo W. Laursen, Langmuir, 2013
Highly fluorescent, discotic trioxatriangulenium dyes were aligned by simple spin-casting on substrates with friction transferred PTFE layers. The fluorescent crystalline thin films show near perfect macroscopic alignment on centimeter large areas directly from spin-casting. Gracing Incidence ...
Formation of MgO-Supported Manganese Carbonyl Complexes by Chemisorption of Mn(CO)5CH3
16-05-2013 | Supattra Khabuanchalad; Jatuporn Wittayakun; Rodrigo J. Lobo-Lapidus; Stefan Stoll; R. David Britt; Bruce C. Gates, Langmuir, 2013
MgO-supported manganese carbonyl complexes were prepared by chemical vapor deposition of Mn(CO)5CH3 on partially dehydroxylated, high-area MgO powder. X-ray absorption spectra identify the resultant surface species, on average, as Mn(CO)4(Os)2 (where the two oxygen ligands are part of the MgO ...
Experimental Determination of the Charge Neutrality Level of Poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV)
16-05-2013 | Wenfeng Wang; Jan H. Alsmeier; Rudy Schlaf, Langmuir, 2013
The charge neutrality level (CNL) of poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) was determined. This was achieved by measuring the hole injection barrier at the MEH-PPV/Al interface with X-ray and ultraviolet photoemission spectroscopies in combination with in situ ...
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