Nanostructured Materials - Science topic

Perovskite solar cells are one of the best options for energy supply in the industry as well as in everyday life. These cells are one of the most important alternatives to silicon solar cells due to the relatively easy and cost-effective preparation process. This type of cell is one of the types of nanostructures that today, due to the addition of...

The study focuses on utilization of block copolymer (BCPs) as template for selective infiltration of AZO precursors. BCPs consist of chemically distinct polymer blocks that are self-assembled into well-defined domains with different morphologies. Vapor phase infiltration (VPI) provides a controlled approach for synthesizing fingerprint-patterned AZ...

This study explores the hydrogen generation potential via water-splitting reactions under UV-vis radiation by using a synergistic assembly of ZnO nanoparticles integrated with MoS2, single-walled carbon nanotubes (SWNTs), and crystalline silicon nanowires (SiNWs) to create the MoS2-SiNWs-SWNTs@ZnONPs nanocomposites. A comparative analysis of MoS2 s...

Metal-organic frameworks (MOF) are an extraordinarily versatile class of porous nanostructured materials that have gained popularity in several scientific fields. Organic ligands are coupled to the inorganic metal centers or clusters to produce MOFs. This frontier review paper critically summarizes the most recent developments in MOF-based material...

Nanotechnology has shown interest in the utilization of agricultural byproducts as a source for nanostructured materials. Due to their distinctive chemical , thermal, mechanical, morphological, optical, and electrical properties, cellulose nanocrystals (CNCs) have often found utility in a variety of fields. Using sulphuric acid with a 64% weight-to...

In cellular environments, certain synthetic molecules can form nanostructures via self-assembly, impacting molecular imaging, and biomedical applications. Control over the formation of these self-assembled nanostructures in subcellular organelle is challenging. By the action of stimuli, either present in the cellular environment or applied external...

This research aims to enhance the optoelectronic properties of Ag-doped ZrS through electrochemical deposition. Different characterization techniques were employed to examine the optical, structural, and morphological properties of the synthesized material, with results showing that the absorbance of ZrS and Ag-doped ZrS changes with the applied vo...

This study employed a hydrothermal method to prepare molybdenum disulfide (MoS2) and a two-step hydrothermal process to synthesize tin oxide (SnO2)-modified MoS2 nanostructured materials. The manufacturing process is simple and cost-effective, and the produced materials were analyzed using various techniques to confirm their high purity and crystal...

Engineering on the nanoscale often involves optimizing performance by designing and creating new types of nanostructured materials. Multifunctional nanoparticles can be formed by combining elements that carry fundamentally different properties....

Cobalt aerogels present solutions to challenges in energy, sensing, and catalysis, but their syntheses have limitations including aggregation, required templates, and slow reactant diffusion times. We demonstrate a magnetic-field-assisted synthesis as a simple, fast, and scalable strategy to produce cobalt nanowire (CoNW) aerogels with tunable nano...

Due to population growth and global technological development, energy consumption has increased exponentially. The global energy crisis opens up many hotly debated topics regarding energy generation and consumption. Not only is energy production in short supply due to limited energy resources but efficient and sustainable storage has become a very...

Nanostructured materials with antibacterial activity face the same threat as conventional antibiotics - bacterial resistance, which reduces their effectiveness. However, unlike antibiotics, research into the emergence and mechanisms of bacterial resistance to antibacterial nanomaterials is still in its early stages. Here we show how Gram-positive S...

The intricate hydrogen-bonded network of water gives rise to various structures with anomalous properties at different thermodynamic conditions. Nanoconfinement can further modify the water structure and properties, and induce specific water motifs, which are instrumental for technological applications such as atmospheric water harvesting. However,...

We have studied repositioning of carvedilol (an antihypertensive drug) incorporated into MCM-41 mesoporous silica. The repositioning proposes a reduction in the slow pace of discovery of new drugs, as well as toxicological safety and a significant reduction in high research costs, making it an attractive strategy for researchers and large pharmaceu...

The development of large number of two‐dimensional (2D) nanostructured materials that followed the success of graphene and the need for their handling and manipulation e. g., in inks, brought to the fore the study of solvents and substances that contribute to the stabilization of 2D nanomaterials in the liquid phase. The successful dispersion of 2D...

In this review, the forefront of biosensor development has been marked by a profound exploration of carbon nanostructured materials for the specific application of glucose detection. Moreover, this progressive line of inquiry capitalizes on the distinctive attributes of carbon nanostructured materials such as carbon nanotubes, carbon quantum dots,...

Solid-state batteries (SSB) have garnered significant attention by reason of their potential advantages over traditional liquid electrolyte batteries, including higher energy density, enhanced safety, and reduced volume. However, the development and implementation of solid electrolytes confront several challenges, such as lower ionic conductivity,...

The impact of the interface phenomena on the properties of nanostructured materials is the focus of modern physics. We studied the magnetic properties of the nanostructured In–Ag alloy confined within a porous glass. The alloy composition was close to the eutectic point in the indium-rich range of the phase diagram. Temperature dependences of DC ma...

Peripheral nerve repair remains a major clinical challenge, particularly in the pursuit of therapeutic approaches that ensure adequate recovery of patient’s activity of daily living. Autografts are the gold standard in clinical practice for restoring lost sensorimotor functions nowadays. However, autografts have notable drawbacks, including dimensi...

Nanostructured materials are advantageous within numerous fields of medicine owing to their intriguing qualities, which include their size, reactive surface, bioactivity, potential for modification, and optical characteristics. Cassia javanica flower extract was used as a chelating agent in an environmentally friendly process to create SeNPs FTIR,...

Dry synthesis is a highly versatile method for the fabrication of nanoporous metal films, since it enables easy and reproducible deposition of single or multi-layer(s) of nanostructured materials that can find intriguing applications in plasmonics, photochemistry and photocatalysis, to name a few. Here, we extend the use of this methodology to the...

This study explores the utilization of photochemical processes as a versatile and efficient tool for the synthesis, characterization, and manipulation of nanoparticles. By leveraging light-induced reactions, we demonstrate the controlled generation of nanoparticles with tailored sizes, shapes, and surface properties. Photochemical synthesis methods...

In the post-pandemic era, human demand for a healthy lifestyle and a smart society has surged, leading to vibrant growth in the field of flexible electronic sensor technology for health monitoring. Flexible polymer humidity sensors are not only capable of the real-time monitoring of human respiration and skin moisture information but also serve as...

Polymerization-induced microphase separation (PIMS) has been previously combined with 3D printing to develop customized nanostructured materials with a wide range of functional applications. In traditional PIMS, monofunctional, linear macromolecular chain transfer agents (macroCTAs) are used to develop macroCTA-b-P(monomer-stat-crosslinker) network...

Nanostructured materials have gained significant attention as anode material in rechargeable lithium-ion batteries due to their large surface-to-volume ratio and efficient lithium-ion intercalation. Herein, we systematically investigated the electronic and electrochemical performance of pristine and endohedral doped (O and Se) Ge12C12 and Si12C12 n...

Nanostructure materials have become essential in advancing energy technologies due to their distinctive features and superior performance. This work examines the synthesis, characterisation, and application of diverse nanostructure materials, such as titanium dioxide (TiO₂), silicon nanostructure, and carbon-based materials, in solar cells, lithium...

Nanosphere lithography is a cost- and time-efficient tool for the fabrication of various nanostructured materials. Multiple steps of metal layer deposition at different oblique angles were shown to produce complex asymmetric and chiral shapes. Here, we investigate samples in which polystyrene nanospheres are covered by Ag or combination of Ag and A...

Nanostructured materials have garnered significant attention due to their remarkable chemical and physical characteristics. Because of their exceptional qualities and potential uses in technology. Nanostructured transition metal oxides are one of the many nanomaterials that need particular attention. The goal of this study was to synthesize nickel...

Structural colors, resulting from the interaction of light with nanostructured materials rather than pigments, present a promising avenue for diverse applications ranging from ink-free printing to optical anti-counterfeiting. Achieving structural colors with high purity and brightness over large areas and at low costs is beneficial for many practic...

Nanostructured materials incorporating transition metal sulfides have demonstrated considerable potential across various applications, particularly in the realms of energy production and storage. Sulfide-based material preparation is a challenging and costly procedure that requires a high temperature and reducing atmosphere. This work reports that...

This chapter explores the transformative role of nanomaterials in the energy sector, focusing on batteries, supercapacitors, and solar cells. It highlights breakthroughs in efficiency, performance, and durability enabled by nanotechnology. Key materials like graphene, metal oxides, transition metal dichalcogenides, and quantum dots exhibit properti...

The development of miniaturized light sources with tunable functionality is crucial for advancing integrated photonic devices, enabling applications in quantum computing, communications, and sensing. Achieving tunable light emission after device fabrication remains a significant challenge, particularly when efficient amplification is required. Hybr...

We computationally analyze the electro-optic response of metasurfaces consisting of interconnected nanoantennas with multipolar resonances using a chalcophosphate, Sn2P2S6, as the active material. Sn2P2S6 has large electro-optic coefficients and relatively low Curie temperature (<70 °C), allowing for strong changes in the refractive index of the ma...

This paper covers the results of the composition and structure evolution of nanostructured materials produced by separate electrochemical oxidation of metals (copper and aluminum). The electrolysis products after short-term and long-term aging were characterized by XRD (X-ray diffraction) and DSC (differential scanning calorimetry) analysis. There...

Water pollution is caused by heavy metals, minerals, and dyes. It has become a global environmental problem. There are numerous methods for removing different types of pollutants from wastewater. Adsorption is viewed as the most promising and financially viable option. Nanostructured materials are used as effective materials for adsorption techniqu...

This study explores the thermal conductivity of silicon nanowires arrays produced by metal-assisted chemical etching of silicon wafers with different dopants, doping levels and crystallography. The wide range of morphological structures observed in silicon nanowires strongly depends on the initial wafer characteristics, a factor that cannot be negl...

Nanostructured materials represent promising substrates for biocatalyst immobilization and activation. Cellulose nanocrystals (CNCs), accessible from waste and/or renewable sources, are sustainable and biodegradable, show high specific surface area for anchoring a high number of enzymatic units, and high thermal and mechanical stability. In this wo...

The demand for sustainable materials in energy harvesting technologies has led to significant advancements, particularly in the development of biodegradable solutions for nuclear applications. This conceptual framework explores innovations in corrosion-resistant materials that combine sustainability with enhanced performance for nuclear energy syst...

Recent years have witnessed significant developments in the study of nonlinear properties of various optical materials at the nanoscale. However, in most cases experimental results on harmonic generation from nanostructured materials are reported without the benefit of suitable theoretical models and appropriate comparisons to assess enhancement of...

Nanomaterials, such as graphene, carbon nanotubes, and metal oxides, are revolutionizing the field of electronics by enabling the development of high-performance devices. This study provides a comprehensive overview of the synthesis, characterization, and application of these nanostructured materials. The unique properties of nanomaterials, includi...

Nanomaterials have unique physicochemical properties, such as a large surface area-to-mass ratio, ultra-small size, and high reactivity, which are different from bulk materials with the same composition. These properties can be used to overcome some limitations found in traditional therapeutic and diagnostic agents. The application of nanomaterials...

This review critically examines advancements in anode materials for cathodic protection systems, focusing on overcoming the limitations of traditional materials like magnesium, zinc, aluminum, graphite, lead-silver alloys, and high-silicon cast iron (HSCI). Conventional anode materials, though widely used, face issues such as rapid degradation, hig...

Over the last several decades, nanostructured materials have been the focus of intense research, due to their remarkable characteristics suitable for exploitation in electronics, optical, electrochemical, electromechanical and photonics applications. In particular, zinc oxide nanostructures (ZnO-NSs) have been extensively utilized as an efficient i...

Several industries, particularly food, agriculture, textiles, cosmetics, pharmaceuticals, energy, aviation, mechanical, construction, water, environmental, oil, and gas, are using nanostructured materials. Nanotechnology has an outstanding record of accomplishment due to its applications across a wide range of industries. In order to design product...

Conductive 2D nanosheets have evoked tremendous scientific efforts because of their high efficiency as hybridization matrices for improving diverse functionalities of nanostructured materials. To address the problems posed by previously reported conductive nanosheets like poorly‐interacting graphene and cost‐ineffective RuO2 nanosheets, economicall...

Fish waste is commonly thrown away as discarded garbage from the fish processing sector, contributing to environmental pollution and resource depletion. Due to its variable decay rate and pungent odor, fish waste poses an ecological threat. Thus, effective management strategies are required to minimize its impact. In this present study, we have uti...

Nanostructured materials, including metal and metal oxide nanoparticles, play a crucial role in advancing diverse scientific and technological areas. Transition metal oxides such as CuO are integral to developments in fields like antibacterial treatments, solar energy conversion, sensing technologies, catalysis, magnetic storage, supercapacitors, a...

This study explores the hydrogen generation potential via water-splitting reactions under UV-vis radiation, by using a synergistic assembly of ZnO nanoparticles integrated with MoS2, single-walled carbon nanotubes (SWNTs), and crystalline silicon nanowires (SiNWs) to create the MoS2-SiNWs-SWNTs@ZnONPs nanocomposites. A comparative analysis of MoS2...

The energy consumption of MOS (metal oxide semiconductor) sensors has always been a challenge in improving their performance. In this study, bougainvillea‐like Au/ZnO nanostructures were successfully synthesized using the hydrothermal method and the sol fixation technique. The composition, crystallinity, crystal structure, and morphology of the mat...

The rapid advancement in the Internet of Things (IoT) has prompted a proliferation of sensor applications with increasing focus on harnessing environmental energy sources for powering these sensors. However, owing to the variability inherent in climatic and geographic conditions, a singular approach to environmental energy harvesting often fails to...

The development of new materials showing the magneto-caloric effect (MCE) requires fast and reliable characterization methods. For this purpose, a phenomenological model developed by M. A. Hamad has proven to be a useful tool to predict the magnetocaloric properties (the isothermal magnetic entropy change, Δ S M , the magnetization-related change o...

Carbon Nanotubes (CNTs) are one-dimensional nanostructured materials that will play a key role in future electronics. All properties of the carbon nanotubes are determined by its electronic structure. The main focus of this study has been to investigate the basic electronic bandgap structure of the chiral single walled carbon nanotubes (SWCNTs). A...

n‐type Dy‐doped Ca2MnO4 powders with the Ruddlesden–Popper structure were synthesized by the combustion method and sintered by conventional sintering and spark plasma sintering (SPS). Conventional sintering fails to densify Ca2MnO4, but the addition of Li2O proves to be a highly effective sintering additive, albeit with a detrimental impact on elec...

The effect of zirconium modified with silica dioxide in the conductivity of modified nanocomposite membrane in proton exchange membrane fuel cells (PEMFCs) application. In this study silica-zirconia nanoparticles were successful synthesized by precipitation method. The surface area and surface morphology of Si-ZrO2 nanoparticles were observed under...

The resonant tunneling frequency and electric current were studied in a nanostructured diode containing a two-fold symmetrical right triangular barrier made of AlyGa1-yAs/GaAs/AlyGa1-yAs semiconductors. The complex energy method was employed to determine the quasi-energy states, utilizing varying effective masses. The resonant tunneling energy decr...

Nanotechnology is a basic science that discusses the relationship between size, dimensions, and physical properties of nanostructured materials. This study aims to determine the effect of strontium administration on the crystal structure of ZnO nanoparticles. In this study, zinc oxide (ZnO) was doped with strontium using the coprecipitation method....

Photocatalytic nitrogen fixation (PNF) using nanostructured materials is a promising approach that is likely to rival the most expensive and high-energy-demanding Harber-Bosch method of ammonia synthesis. This is because the process is deemed the most sustainable method of nitrogen fixation, through the direct production of ammonia and/or nitrate f...

Nanostructured materials with unique mechanical, optical, and electrical properties have been increasingly utilized in the fields of optoelectronics, medicine, and pharmaceuticals. This study introduces a novel green synthesis method using guava Leaves Extract to produce ZnS quantum dots (QDs) for the first time. The synthesized ZnS QDs underwent c...

Due to a rise in industrial pollutants in modern life, the climate and energy crisis have grown more widespread. One of the best ways to deal with dye degradation, hydrogen production, and carbon dioxide reduction issues is the photocatalytic technique. Among various methods, catalytic technology has demonstrated tremendous promise in recent years...

Renewable and non-renewable energy harvesting and its storage are important components of our everyday economic processes. Lithium-ion batteries (LIBs), with their rechargeable features, high open-circuit voltage, and potential large energy capacities, are one of the ideal alternatives for addressing that endeavor. Despite their widespread use, imp...

Electrode materials are important indicators for evaluating the performance of electrochemical capacitors, and designing nanostructured materials with high specific capacitance and excellent cycling stability performance is an important way to enhance the performance of supercapacitors. In this study, cetyltrimethylammonium bromide (CTAB) was used...

The dentistry industry has been modernized by nanotechnology, as this emerging field has opened up new doors for dental treatment, restoration, and tissue regeneration. The potential applications of nanomaterials in dentistry are reviewed in this paper, ranging from advanced restorative materials to targeted drug delivery systems. Due to their uniq...

The influence factors of small punch test (SPT) were investigated to evaluate the mechanical properties of gradient nanostructured (GNS) materials. The gradient nanostructure was prepared on the top layer of S30408 austenitic stainless steel by ultrasonic impact treatment (UIT). The mechanical properties of the GNS material were obtained using SPT...

This work is the first study of the Mn and Co dopants effect on the physical properties of ZnO thin films electrodeposited on aluminum substrate.In order to synthesize these samples, electroplated Zn thin layers were thermally oxidized in atmospheric air for 2 h at 500 °C. The elaborated films were analyzedby X-ray diffraction (XRD), Raman spectros...