You are currently on the new version of our website. Access the old version .

65 Results Found

  • Article
  • Open Access
5 Citations
3,139 Views
17 Pages

19 December 2021

Supplementary cementitious materials (SCMs), such as fly ash (FA), blast furnace slag (BS), and silica fume (SF), have been mostly used as a replacement for Portland cement (PC). Replacing the SCMs with cement can provide improved strength characteri...

  • Article
  • Open Access
32 Citations
7,058 Views
19 Pages

25 November 2017

We report on a new localized surface plasmon resonance (LSPR)-based optical fiber (OF) architecture with a potential in sensor applications. The LSPR-OF system is fabricated by immobilizing gold nanoparticles (GNPs) in a hydrogel droplet polymerized...

  • Article
  • Open Access
9 Citations
6,926 Views
19 Pages

Supramolecular Control over the Interparticle Distance in Gold Nanoparticle Arrays by Cyclodextrin Polyrotaxanes

  • Joao Paulo Coelho,
  • José Osío Barcina,
  • Elena Junquera,
  • Emilio Aicart,
  • Gloria Tardajos,
  • Sergio Gómez-Graña,
  • Pablo Cruz-Gil,
  • Cástor Salgado,
  • Pablo Díaz-Núñez and
  • Andrés Guerrero-Martínez
  • + 1 author

16 March 2018

Amphiphilic nonionic ligands, synthesized with a fixed hydrophobic moiety formed by a thiolated alkyl chain and an aromatic ring, and with a hydrophilic tail composed of a variable number of oxyethylene units, were used to functionalize spherical gol...

  • Article
  • Open Access
6 Citations
2,518 Views
14 Pages

24 June 2021

The formation of a 1D chain-like structure of dust particles in a low-temperature argon plasma was studied. A new numerical model for calculation of the self-consistent spatial distribution of plasma parameters around a chain of dust particles was pr...

  • Article
  • Open Access
2 Citations
1,410 Views
16 Pages

31 January 2025

The interfacial properties of blends play a crucial role in determining the mechanical characteristics of polyamide alloys. This study focused on the preparation of PA6/PBS alloys via a melt blending method, utilizing 3-aminopropyltriethoxysilane (KH...

  • Article
  • Open Access
1 Citations
3,039 Views
8 Pages

Collapse-Induced Multimer Formation of Self-Assembled Nanoparticles for Surface Enhanced Raman Scattering

  • Ju Young Kim,
  • Young Taek Oh,
  • Su Eon Lee,
  • Jun Hyun Park,
  • Shin Park,
  • Young Chun Ko,
  • Jun Pyo Hwang,
  • Seung Won Seon,
  • Tae Sang Yu and
  • Bong Hoon Kim
  • + 3 authors

11 January 2021

Metallic nanoparticle ensemble, with narrow inter-particle distance, is a useful element for diverse optical devices due to highly enhanced electric field intensity at the gap. Self-assembly of block copolymer (BCP) can provide the versatile solution...

  • Article
  • Open Access
30 Citations
3,868 Views
13 Pages

31 August 2023

In this paper, we present numerical and experimental results on Localized Surface Plasmon Resonance (LSPR) refractive index (RI) sensitivity, Figure of Merit (FoM), and penetration depth (dp) dependence on spherical gold nanoparticles (AuNPs) size, a...

  • Article
  • Open Access
3 Citations
12,138 Views
21 Pages

20 June 2013

Adjusting the inter-particle distances in ordered nanoparticle arrays can create new nano-devices and is of increasing importance to a number of applications such as nanoelectronics and optical devices. The assembly of negatively charged polystyrene...

  • Feature Paper
  • Article
  • Open Access
522 Views
22 Pages

Exploring Pump–Probe Response in Exciton–Biexciton Quantum Dot–Metal Nanospheroid Hybrids

  • Spyridon G. Kosionis,
  • Dimitrios P. Alevizos and
  • Emmanuel Paspalakis

25 November 2025

We study the optical susceptibility of a CdSe-based semiconductor quantum dot with a cascade exciton–biexciton configuration, which is coupled via the Coulomb interaction to a gold spheroidal nanoparticle, in the presence of a nearly resonant s...

  • Article
  • Open Access
3 Citations
2,032 Views
14 Pages

Efficient Biexciton State Preparation in a Semiconductor Quantum Dot Coupled to a Metal Nanoparticle with Linearly Chirped Gaussian Pulses

  • Athanasios Smponias,
  • Dionisis Stefanatos,
  • George P. Katsoulis,
  • Ioannis Thanopulos and
  • Emmanuel Paspalakis

7 September 2022

We consider a hybrid nanostructure composed of a semiconductor quantum dot placed near a spherical metallic nanoparticle, and study the effect of the nanoparticle on the population transferral from the ground to the biexciton state of the quantum dot...

  • Article
  • Open Access
3 Citations
1,967 Views
16 Pages

2 September 2022

We study the resonant fluorescence emission spectrum and the intensity-intensity correlations of the emitted fluorescent field by a V-type quantum emitter (QE) which is located near a metal nanosphere. For the description of the studied phenomena, we...

  • Article
  • Open Access
11 Citations
2,140 Views
10 Pages

15 January 2023

We examine the optical absorption in a hybrid structure composed of a metal nanoshell and a semiconductor quantum dot, while interacting with a linearly polarized probe electromagnetic field. First, we derive the equations of motion, in the rotating...

  • Article
  • Open Access
9 Citations
7,317 Views
13 Pages

30 November 2017

Nanocomposites are an important materials class, which strives to foster synergistic effects from the intimate mixture of two vastly different materials. Inorganic nanoparticles decorated with polymer ligands, for instance, aim to combine the process...

  • Article
  • Open Access
29 Citations
7,248 Views
17 Pages

13 June 2014

This work presents simulation, analysis and implementation of morphology tuning of gold nano-island structures deposited by a novel convective assembly technique. The gold nano-islands were simulated using 3D Finite-Difference Time-Domain (FDTD) tech...

  • Article
  • Open Access
10 Citations
4,138 Views
12 Pages

Assessing Plasmonic Nanoprobes in Electromagnetic Field Enhancement for SERS Detection of Biomarkers

  • Han-Wen Cheng,
  • Shu-Yan Xue,
  • Jing Li,
  • Justine S. Gordon,
  • Shan Wang,
  • Nina R. Filippone,
  • Quang Minh Ngo and
  • Chuan-Jian Zhong

14 December 2021

The exploration of the plasmonic field enhancement of nanoprobes consisting of gold and magnetic core@gold shell nanoparticles has found increasing application for the development of surface-enhanced Raman spectroscopy (SERS)-based biosensors. The un...

  • Article
  • Open Access
6 Citations
10,489 Views
10 Pages

Recognition-Mediated Assembly of Quantum Dot Polymer Conjugates with Controlled Morphology

  • Vikas Nandwana,
  • Chandramouleeswaran Subramani,
  • Serkan Eymur,
  • Yi-Cheun Yeh,
  • Gulen Yesilbag Tonga,
  • Murat Tonga,
  • Youngdo Jeong,
  • Boqian Yang,
  • Michael D. Barnes and
  • Vincent M. Rotello
  • + 1 author

23 September 2011

We have demonstrated a polymer mediated “bricks and mortar” method for the self-assembly of quantum dots (QDs). This strategy allows QDs to self-assemble into structured aggregates using complementary three-point hydrogen bonding. The resulting nanoc...

  • Article
  • Open Access
3 Citations
2,030 Views
18 Pages

Isotropic and Anisotropic Monolayer Structures in RF Discharge Plasma

  • Anastasiya A. Alekseevskaya,
  • Elena V. Vasilieva,
  • Anatoly V. Filippov,
  • Mikhail M. Vasiliev and
  • Oleg F. Petrov

We present the results of an experimental and analytical study of the structural and dynamic properties of a monolayer consisting of dust grains in an electrostatic trap in an RF discharge plasma. The possibility of forming a monolayer with an isotro...

  • Perspective
  • Open Access
5 Citations
3,605 Views
4 Pages

A short coherence length is a distinctive feature of many cases of unconventional superconductivity. While in conventional superconductors, it is many orders of magnitude larger than the basic inter-particle distance, a short coherence length is comm...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,777 Views
16 Pages

Three-Dimensional Morphological Study of MnTe-like Structures by Assessment of Tortuosity Tensor Using Computational Fluid Dynamics

  • Giuseppe Prenesti,
  • Edoardo Walter Petrassi,
  • Caterina Guzzo,
  • Silvia Mannella,
  • Francesco Stellato,
  • Laura Crisafulli,
  • Giulia Azzato,
  • Andrea Katovic,
  • Agostino Lauria and
  • Alessio Caravella

7 October 2024

This paper focuses on a morphological study of the MnTe-like structures, carried out by the evaluation of the tortuosity tensor and other related parameters using a computational fluid dynamics approach recently developed by our research group. The p...

  • Article
  • Open Access
15 Citations
3,487 Views
17 Pages

Efficient Biexciton Preparation in a Quantum Dot—Metal Nanoparticle System Using On-Off Pulses

  • Athanasios Smponias,
  • Dionisis Stefanatos and
  • Emmanuel Paspalakis

19 July 2021

We consider a hybrid nanostructure composed by semiconductor quantum dot coupled to a metallic nanoparticle and investigate the efficient creation of biexciton state in the quantum dot, when starting from the ground state and using linearly polarized...

  • Article
  • Open Access
7 Citations
2,654 Views
10 Pages

25 September 2022

In this work, we present a new study on the electromagnetic (EM) enhancement properties generated by Ag/TiO2 toward the finger print of methylene blue (MB) molecules deposited on the surface of Ag nanostructures. SERS intensity generated by MB molecu...

  • Article
  • Open Access
4 Citations
3,006 Views
14 Pages

26 January 2023

In the present work, we investigate the problem of the optical absorption coefficient (OAC) and refractive-index change (RIC) in a semiconductor quantum dot placed in the vicinity of a spherical metallic nanoparticle. We derive the total OAC and RIC...

  • Article
  • Open Access
2 Citations
1,513 Views
15 Pages

Pump–Probe Optical Response and Four-Wave Mixing in a Zinc–Phthalocyanine–Metal Nanoparticle Hybrid System

  • Natalia Domenikou,
  • Spyridon G. Kosionis,
  • Ioannis Thanopulos,
  • Vassilios Yannopapas and
  • Emmanuel Paspalakis

4 September 2023

We investigate theoretically the optical response of a zinc–phthalocyanine molecular quantum system near a gold spherical nanoparticle with a radius of 80 nm. The quantum system is irradiated by a strong pump and a weak probe coherent electroma...

  • Article
  • Open Access
14 Citations
3,446 Views
20 Pages

18 November 2020

The debris–barrier interaction issue has gained considerable attention among the engineering community, but most researches have only focused on the single-surge impact condition, with the multiple-surge impact mechanism still lacking clarity....

  • Article
  • Open Access
2 Citations
2,975 Views
20 Pages

11 June 2021

Effect of rheological property on the migration and alignment of three interacting particles in Poiseuille flow of Giesekus fluids is studied with the direct-forcing fictitious domain method for the Weissenberg number (Wi) ranging from 0.1 to 1.5, th...

  • Article
  • Open Access
3 Citations
2,036 Views
14 Pages

The Influence of Temperature on the Spatial Distribution of AuNPs on a Ceramic Substrate for Biosensing Applications

  • Yazmín Mariela Hernández-Rodríguez,
  • Esperanza Baños-López,
  • Pablo Damián-Matsumura,
  • Claudia Haydée González de la Rosa and
  • Oscar Eduardo Cigarroa-Mayorga

In this study, we investigated the spatial distribution and homogeneity of gold nanoparticles (AuNPs) on an alumina (Al2O3; AAO) substrate for potential application as surface-enhanced Raman scattering (SERS) sensors. The AuNPs were synthesized throu...

  • Article
  • Open Access
9 Citations
3,064 Views
14 Pages

5 December 2022

Despite bulk crystals of silicon (Si) being indirect bandgap semiconductors, their quantum dots (QDs) exhibit the superior photoluminescence (PL) properties including high quantum yield (PLQY > 50%) and spectral tunability in a broad wavelength ra...

  • Article
  • Open Access
12 Citations
1,971 Views
18 Pages

Charged Cavitation Multibubbles Dynamics Model: Growth Process

  • Ahmed K. Abu-Nab,
  • Amerah M. Hakami and
  • Ali F. Abu-Bakr

14 February 2024

The nonlinear dynamics of charged cavitation bubbles are investigated theoretically and analytically in this study through the Rayleigh–Plesset model in dielectric liquids. The physical and mathematical situations consist of two models: the fir...

  • Article
  • Open Access
5 Citations
2,245 Views
16 Pages

28 November 2023

The structural build-up of cementitious materials is the subject of more and more attention since it conditions several processes such as formwork pressure and multi-layer casting. However, this phenomenon originating from flocculation and chemical c...

  • Proceeding Paper
  • Open Access
2 Citations
1,317 Views
5 Pages

11 November 2020

In this study, the four-wave mixing (FWM) spectrum of a strongly pumped hybrid structure is theoretically examined. The hybrid structure consists of an asymmetric double semiconductor quantum dot (SQD) molecule and a spherical metal nanoparticle (MNP...

  • Article
  • Open Access
1,508 Views
35 Pages

Multi-Phase Dolomitization in the Jurassic Paleo-Oil Reservoir Zone, Qiangtang Basin (SW China): Implications for Reservoir Development

  • Ruilin Hao,
  • Liyin Pan,
  • Nana Mu,
  • Xi Li,
  • Xiaodong Fu,
  • Shaoyun Xiong,
  • Siqi Liu,
  • Jianfeng Zheng,
  • Min She and
  • Axel Munnecke

5 September 2024

The age and dolomitization processes in the Paleo-oil reservoir zone, which is composed of massive dolostones found in the Qiangtang Basin (SW China), are still debated. In this research, the Long’eni-Geluguanna Area was selected. Macroscopic i...

  • Article
  • Open Access
62 Citations
7,746 Views
15 Pages

Mechanical and Strain-Sensing Capabilities of Carbon Nanotube Reinforced Composites by Digital Light Processing 3D Printing Technology

  • Alejandro Cortés,
  • Xoan F. Sánchez-Romate,
  • Alberto Jiménez-Suárez,
  • Mónica Campo,
  • Alejandro Ureña and
  • Silvia G. Prolongo

22 April 2020

Mechanical and strain sensing capabilities of carbon nanotube (CNT) reinforced composites manufactured by digital light processing (DLP) 3D printing technology have been studied. Both CNT content and a post-curing treatment effects have been analyzed...

  • Article
  • Open Access
8 Citations
2,349 Views
17 Pages

26 October 2020

A triangular lattice model for pattern formation by core-shell particles at fluid interfaces is introduced and studied for the particle to core diameter ratio equal to 3. Repulsion for overlapping shells and attraction at larger distances due to capi...

  • Review
  • Open Access
26 Citations
9,015 Views
26 Pages

21 October 2024

Nanoparticle-based thin films are increasingly being used in various applications. One of the key factors that determines the properties and performances of these films is the type of ligands attached to the nanoparticle surfaces. While long-chain su...

  • Feature Paper
  • Review
  • Open Access
20 Citations
4,239 Views
26 Pages

Atomic Structure Calculations of Helium with Correlated Exponential Functions

  • Vladimir A. Yerokhin,
  • Vojtěch Patkóš and
  • Krzysztof Pachucki

11 July 2021

The technique of quantum electrodynamics (QED) calculations of energy levels in the helium atom is reviewed. The calculations start with the solution of the Schrödinger equation and account for relativistic and QED effects by perturbation expansion i...

  • Article
  • Open Access
1,772 Views
13 Pages

13 November 2024

Fatigue crack growth behavior of additively manufactured Ti metal matrix composite with TiB particles at room temperature was studied using a compact tension specimen and at the stress ratio of 0.1 (R = 0.1). The composite studied in this work was ma...

  • Article
  • Open Access
2,132 Views
14 Pages

Effects of Material Structure on Stress Relaxation Characteristics of Rapidly Solidified Al-Fe Alloy

  • Ryohei Kobayashi,
  • Tatsuya Funazuka,
  • Toru Maeda and
  • Tomomi Shiratori

30 August 2023

An Al-Fe alloy which was produced by hot extrusion of rapidly solidified powder is a possible solution to substitute copper-based electrical conductor material due to its high strength and high electrical conductivity. However, the stress relaxation...

  • Proceeding Paper
  • Open Access
1,168 Views
6 Pages

2 December 2022

In this study, we investigate the linear optical response in a hybrid nanostructure composed of a semiconductor quantum dot and a metal shell nanoparticle. We analyze a case wherein the nanostructure interacts with an incident electromagnetic field w...

  • Communication
  • Open Access
1,357 Views
8 Pages

25 November 2024

Plasmon chirality has garnered significant interest in sensing application due to its strong electromagnetic field localization and highly tunable optical properties. Understanding the effects of mode coupling in chiral structures on chiral optical a...

  • Article
  • Open Access
8 Citations
3,205 Views
13 Pages

Gradient SERS Substrates with Multiple Resonances for Analyte Screening: Fabrication and SERS Applications

  • Ashutosh Mukherjee,
  • Quan Liu,
  • Frank Wackenhut,
  • Fang Dai,
  • Monika Fleischer,
  • Pierre-Michel Adam,
  • Alfred J. Meixner and
  • Marc Brecht

10 August 2022

Surface-enhanced Raman spectroscopy (SERS) provides a strong enhancement to an inherently weak Raman signal, which strongly depends on the material, design, and fabrication of the substrate. Here, we present a facile method of fabricating a non-unifo...

  • Article
  • Open Access
29 Citations
6,013 Views
13 Pages

Flexible Perovskite Solar Cells via Surface-Confined Silver Nanoparticles on Transparent Polyimide Substrates

  • Xiangfu Liu,
  • Lin Hu,
  • Rongwen Wang,
  • Junli Li,
  • Honggang Gu,
  • Shiyuan Liu,
  • Yinhua Zhou and
  • Guoli Tu

6 March 2019

We report about a flexible substrate incorporating surface-confined silver nanoparticles on transparent polyimide (PI). The incorporated silver nanoparticles (Ag NPs), which possessed excellent adhesive strength with the PI substrate, induced localiz...

  • Article
  • Open Access
30 Citations
5,238 Views
17 Pages

26 November 2018

The electromagnetic wear particles detection sensor has been widely studied due to its ability to monitor the wear status of equipment in real time. To precisely estimate the change of the magnetic energy of the sensor coil caused by the wear particl...

  • Article
  • Open Access
5 Citations
2,931 Views
10 Pages

16 October 2019

This work presents the preparation of cross-linking Au nanoparticle (NP) monolayer membranes by the thiol exchange reaction and their enhanced mechanical properties. Dithiol molecules were used as a cross-linking mediator to connect the adjacent nano...

  • Article
  • Open Access
447 Views
10 Pages

DNA Unwinding Driven by Gold Nanoparticles

  • Liat Katrivas,
  • Galina M. Proshkina,
  • Sergey M. Deyev and
  • Alexander B. Kotlyar

13 December 2025

We demonstrate that gold nanoparticles (AuNPs) are capable of unwinding double-stranded (ds) DNA. Upon unwinding, the exposed nucleobases of the separated strands adsorb onto the nanoparticle surface, resulting in the coating of the particles. The un...

  • Article
  • Open Access
2 Citations
3,068 Views
11 Pages

Silver Nanoparticle Chains for Ultra-Long-Range Plasmonic Waveguides for Nd3+ Fluorescence

  • Javier Fernández-Martínez,
  • Sol Carretero-Palacios,
  • Pablo Molina,
  • Jorge Bravo-Abad,
  • Mariola O. Ramírez and
  • Luisa E. Bausá

3 December 2022

Plasmonic waveguides have been shown to be a promising approach to confine and transport electromagnetic energy beyond the diffraction limit. However, ohmic losses generally prevent their integration at micrometric or millimetric scales. Here, we pre...

  • Review
  • Open Access
2 Citations
4,542 Views
15 Pages

Different forces play key roles in the stability of food colloid dispersions. The focus here is on those controlling attraction and/or repulsion, which concur to stabilization, phase separation, coagulation and are quite evident in water-based system...

  • Article
  • Open Access
13 Citations
4,703 Views
11 Pages

13 March 2019

The high reproducibility of trace detection in complex systems is very hard but crucial to analytical technology and science. Here, we present a surface-enhanced Raman scattering (SERS) platform made by large-scale self-assembly of Au nanoparticle (N...

  • Feature Paper
  • Review
  • Open Access
84 Citations
8,520 Views
20 Pages

Mechanisms of Nanophase-Induced Desorption in LDI-MS. A Short Review

  • Rosaria Anna Picca,
  • Cosima Damiana Calvano,
  • Nicola Cioffi and
  • Francesco Palmisano

Nanomaterials are frequently used in laser desorption ionization mass spectrometry (LDI-MS) as DI enhancers, providing excellent figures of merit for the analysis of low molecular weight organic molecules. In recent years, literature on this topic ha...

  • Article
  • Open Access
3 Citations
2,890 Views
15 Pages

Bone Graft Packing and Its Association with Bone Regeneration in Maxillary Sinus Floor Augmentations: Histomorphometric Analysis of Human Biopsies

  • Karoline Maria Reich,
  • Florian Beck,
  • Patrick Heimel,
  • Stefan Lettner,
  • Heinz Redl,
  • Christian Ulm and
  • Stefan Tangl

30 September 2022

Research in maxillary sinus floor augmentation (MSFA) focussed on the optimisation of microstructural parameters such as microporosity and particle size of bone substitute particles (BS). However, little is known about the impact of BS packing and th...

  • Article
  • Open Access
6 Citations
1,905 Views
17 Pages

11 July 2023

In this work, we aim to design the digital twin of a plasmonic sensor based on hexagonally arranged ellipsoidal gold nanoparticles fixed to a glass substrate. Based on electron microscopy images of three experimentally realized nanoparticle arrangeme...

of 2