Rojas Gómez, Alejandro Acosta, Laura K Ferré-Borrull, Josep Santos, Abel Marsal, Lluis F
Published in
ACS applied nano materials
Gold-coated gradient-index filters based on nanoporous anodic alumina (Au-coated NAA-GIFs) were used as model platforms to elucidate how Tamm plasmons can be tailored by engineering the geometric features of the plasmonic and photonic components of these hybrid structures. NAA-GIFs with well-resolved, intense photonic stopbands at two positions of ...
Chowdhury, Debasree Mohamed, Shaimaa A Manzato, Giacomo Siri, Beatrice Chittofrati, Roberto Giordano, Maria Caterina Hussein, Mohamed Hameed, Mohamed F O Obayya, Salah S A Stadler, Philipp
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Published in
ACS applied nano materials
Thin-film organic photovoltaic (OPV) devices represent an attractive alternative to conventional silicon solar cells due to their lightweight, flexibility, and low cost. However, the relatively low optical absorption of the OPV active layers still represents an open issue in view of efficient devices that cannot be addressed by adopting conventiona...
Luong, Jason Wang, Xin Tsung, Alicia Humphrey, Nicholas Guo, Huiming Lam, Benjamin X Mallikarjun Sharada, Shaama Bowman, William J
Published in
ACS applied nano materials
Potential applications of the earth-abundant, low-cost, and non-critical perovskite CaTi1-x Fe x O3-δ in electrocatalysis, photocatalysis, and oxygen-transport membranes have motivated research to tune its chemical composition and morphology. However, investigations on the decomposition mechanism(s) of CaTi1-x Fe x O3-δ under thermochemically reduc...
Wu, Kai Chugh, Vinit Kumar D Krishna, Venkatramana Wang, Yongqiang Andrew Gordon, Timothy D Cheeran, Maxim C-J Wang, Jian-Ping
Published in
ACS applied nano materials
In this work, we report a 5-min magnetic particle spectroscopy (MPS)-based bioassay strategy. In our approach, surface-functionalized magnetic nanoparticles are incubated with target analytes at 37 °C with agitation for 3 min, and the MPS reading is then taken at the fifth minute. We prove the feasibility of 5 min ultrafast detection of SARS-CoV-2 ...
Viaña, Jose M Romero, Manuel Lozano, Gabriel Míguez, Hernán
Published in
ACS applied nano materials
Transparent coatings made of rare-earth doped nanocrystals, also known as nanophosphors, feature efficient photoluminescence and excellent thermal and optical stability. Herein, we demonstrate that the optical antennas prepared by colloidal lithography render thin nanophosphor films with a brighter emission. In particular, we fabricate gold nanostr...
Casey, Éadaoin Holmes, Justin D Collins, Gillian
Published in
ACS applied nano materials
Combining a two-dimensional (2D) morphology and plasmonic photocatalysis represents an efficient design for light-driven organic transformations. We report a one-pot synthesis of surfactant templated PdAu nanosheets (NSs). Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analyses show the formation of 2D PdAu struct...
Zhou, Bo Jiang, Yunlu Guo, Qian Das, Anirban Sobrido, Ana Belén Jorge Hing, Karin A Zayats, Anatoly V Krause, Steffi
Published in
ACS applied nano materials
α-Fe2O3 (hematite) thin films have been shown to be a robust sensor substrate for photoelectrochemical imaging with good stability and high spatial resolution. Herein, one-dimensional (1D) hematite nanorods (NRs) synthesized via a simple hydrothermal method are proposed as a substrate which provides nanostructured surfaces with enhanced photocurren...
Constantinou, Marios Hadjigeorgiou, Katerina Abalde-Cela, Sara Andreou, Chrysafis
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ACS applied nano materials
Surface-Enhanced Raman Spectroscopy (SERS) is a powerful analytical technique for the detection of small analytes with great potential for medical diagnostic applications. Its high sensitivity and excellent molecular specificity, which stems from the unique fingerprint of molecular species, have been applied toward the detection of different types ...
Wijesundera, Samurdhi A Jayawardana, Kalana W Yan, Mingdi
Published in
ACS applied nano materials
Silver nanoparticles (AgNPs) are potent antimicrobial agents, but their utility is limited due to their relatively high cytotoxicity. In this work, we used trehalose as the ligand to reduce the cytotoxicity of AgNPs without affecting their antimicrobial activities. Trehalose is a disaccharide that is unique to mycobacteria. We showed that trehalose...
Güniat, Lucas Tappy, Nicolas Balgarkashi, Akshay Charvin, Titouan Lemerle, Raphaël Morgan, Nicholas Dede, Didem Kim, Wonjong Piazza, Valerio Leran, Jean-Baptiste
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Published in
ACS applied nano materials
III-V semiconductors outperform Si in many optoelectronics applications due to their high carrier mobility, efficient light emission and absorption processes, and the possibility to engineer their band gap through alloying. However, complementing Si technology with III-V semiconductors by integration on Si(100) remains a challenge still today. Vert...
