Article
Chemistry, Multidisciplinary
Fatma Pir Cakmak, Allyson M. Marianelli, Christine D. Keating
Summary: Formation of coacervate-supported phospholipid membranes by hydrating a dried lipid film in the presence of coacervate droplets leads to the presence of continuous lipid bilayers around many droplets. Different coating types on coacervate droplets result in membrane diversity within the same population, showcasing various functionalities.
Article
Materials Science, Paper & Wood
Huan Liu, Bo Pang, Kai Zhang
Summary: This study demonstrates the self-assembly of cellulose nanowhiskers (CNWs) in confined geometries to fabricate ordered honeycomb microporous films. The critical influencing factors for film formation include the concentration of CNW-SU suspensions, relative humidity, and surface-attached moieties. Immobilized hydrophobic groups on CNWs significantly affect the formation of uniform porous films.
Article
Chemistry, Multidisciplinary
Li Xu, Wei Fu, Lei Bao, Guanglin Wang, Wanping Wang, Wei Wang, Kun Xiang, Nengmei Deng, Xucheng Fu, Juncheng Jin
Summary: Homogeneous photoluminescent MoS2 QDs were successfully produced using structurally stable MOF MIL-101 as limited nanoreactors, opening up a new route for fabricating other photoluminescent QDs and their derived nanomaterials.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jong Hyun Kim, Jong Bin Kim, Ye Hun Choi, Sanghyuk Park, Shin-Hyun Kim
Summary: Elastic photonic microbeads with enhanced color saturation are designed through facile photocuring of oil-in-oil emulsion droplets, offering potential as pragmatic structural colorants for various applications such as printings, paintings, and cosmetics. The high crystallinity of colloidal arrays increases reflectivity at stopband, while index matching reduces incoherent scattering, enhancing color saturation and fluidity.
Article
Materials Science, Multidisciplinary
Po-Ting Chiu, Chih-Ying Yang, Zhi-Hong Xie, Ming-Yao Chang, Yu-Chueh Hung, Rong-Ming Ho
Summary: Chiral plasmonic films with gold nanohelices were fabricated using enantiomeric polylactide-based block copolymers as templates for templated electroless plating. By controlling helicity during self-assembly, mirror-image signals were identified in electronic circular dichroism spectra, and the chiral plasmonic properties were confirmed through simulation using finite-difference time-domain method. This study provides insights into the fabrication of chiral plasmonic materials for optical applications.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Maximiliano Jesus Jara Fornerod, Alberto Alvarez-Fernandez, Eric R. Williams, Maximilian W. A. Skoda, Beatriz Prieto-Simon, Nicolas H. Voelcker, Morgan Stefik, Marc-Olivier Coppens, Stefan Guldin
Summary: Mesoporous thin films are widely used for their high surface area and efficient mass and charge transport properties. A two-step calcination process can reduce film contraction and enhance structural control, resulting in mesoporous films with higher porosity and larger pores. These films exhibit favorable characteristics for mass transport of large molecules.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Y. N. Colmenares, Wagner Correr, Maria Jose Bell, Md Hosne Mobarok Shamim, Sandra Helena Messaddeq, Martin Rochette, Younes Messaddeq
Summary: Chalcogenide glasses are a promising alternative material for mid-infrared optics in integrated photonics. However, the use of thermal reflow in fabrication is limited by phase separation and crystallization. Rare earth-doped chalcogenides, which are of great interest for lasers and amplifiers, are particularly prone to these issues. This study demonstrates the possibility of inducing thermal reflow in Er-doped chalcogenide thin films without agglomeration or fluorescence quenching, opening the door for the fabrication and integration of rare earth-doped chalcogenide planar devices into photonic circuits.
Article
Chemistry, Multidisciplinary
Kirsten Volk, Tobias Honold, Deborah Feller, Matthias Karg
Summary: Surface lattice resonances in periodic plasmonic nanoparticle arrays are influenced by the hybridization of plasmonic and photonic modes, leading to reduced linewidth, angle-dependent dispersion, and long-range collectivity compared to localized surface plasmon resonances. The optical response of self-assembled plasmonic monolayers of gold and silver nanoparticles with different lattice arrangements is studied in this research, showcasing the spectral tunability of the optical response through variations in plasmonic material, lattice spacing, and geometry. Experimental findings confirming surface lattice resonances are supported by finite difference time domain simulations.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Mechanics
D. A. Medvedev, A. L. Kupershtokh
Summary: The behavior of dielectric droplets and films on a solid surface under different electric field configurations shows a variety of effects, including elongation, spreading, breakup, and the formation of annular structures. This phenomenon is important for experimenters to study different effects under electric field.
Article
Materials Science, Ceramics
Housei Akazawa
Summary: Both undoped and Er3+-doped Bi2O3 thin films were sputter-deposited on Si(100) substrates, exhibiting varying refractive indices and emission characteristics. Er3+ emissions peaking at 532 nm were observed in the Er3+-doped Bi2O3 films, with concentration quenching potentially influenced by the deposition temperature.
CERAMICS INTERNATIONAL
(2021)
Article
Polymer Science
Mengwei Huo, Yibo Wang, Xinbo Wang
Summary: Ordered porous polyimide films were fabricated from (AB)(m) type of diblock copolymer polyimide-b-polystyrene (PI-b-PS). Increasing the volume fraction of polystyrene (f (V)(PS)) can decrease the relative dielectric constants and water contact angles of the porous PI films. The porous PI films displayed excellent wettability and can be used as low-kappa materials. The solvent uptake of the porous PI films increased with increasing f (V)(PS), and a net-like morphology appeared at f (V)(PS) of 0.36.
Article
Chemistry, Multidisciplinary
Li Shao, Gilles E. Moehl, Ruomeng Huang, Andrew L. Hector
Summary: Fractal-like networks of gold nanoparticles were created by templated electrodeposition, a powerful technique for bottom-up fabrication of nanostructures. The electrodeposition was performed using mesoporous silica films as templates, which resulted in the formation of gold nanoparticles with interesting fractal morphologies.
Article
Chemistry, Physical
Masakazu Takamatsu, Toshiki Sakata, Daisuke Kajiya, Ken-ichi Saitow
Summary: This article presents a simple and effective method for obtaining oriented films of pi-conjugated polymers. The method utilizes a cellulose template and thermal annealing to achieve high orientation of the films, resulting in stable folding performance and polarized fluorescence.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
David N. Sibley, Pablo Llombart, Eva G. Noya, Andrew J. Archer, Luis G. MacDowell
Summary: This study develops a mesoscopic model of liquid-film mediated ice growth and identifies various growth regimes. Freezing processes at different saturation levels show distinct growth mechanisms, with the liquid layer playing a crucial role. The research provides a general framework for understanding ice growth close to the triple point and offers a first principle theory that may be useful in geosciences.
NATURE COMMUNICATIONS
(2021)
Article
Optics
Luis E. Young-S, S. K. Adhikari
Summary: We observe the crystallization of droplets in square and honeycomb lattice structures in a quasi-two-dimensional trapped dipolar condensate. These three types of crystallization can occur under the same atomic interaction and trap frequencies. The energy of all three crystallizations follows a scaling relation with the number of atoms, indicating their energetic plausibility. The square lattice crystallization with an occupied central site is a potential candidate for future experimental observation.
