Your browser does not fully support modern features. Please upgrade for a smoother experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Micro-Combinatorial Technique in Materials Science
The novel, single-sample concept combinatorial method, the so-called micro-combinatory technique, has been shown to be suitable for the high-throughput and complex characterization of multicomponent thin films over an entire composition range. In addition to the 3 mm diameter TEM grid used for microstructural analysis, by scaling up the substrate size to 10 × 25 mm, this novel approach has allowed for a comprehensive study of the properties of the materials as a function of their composition, which has been determined via transmission electron microscopy (TEM), scanning electron microscopy (SEM), Rutherford backscattering spectrometry (RBS), X-ray diffraction analysis (XRD), atomic force microscopy (AFM), spectroscopic ellipsometry, and nanoindentation studies.
  • 619
  • 18 Jul 2023
Topic Review
Room-Temperature Perovskite Solar Cells
Perovskite solar cells have garnered significant attention as the next-generation photovoltaic devices. After more than a decade of dedicated research, commercializing these cells is now on the horizon. One of the primary focuses for developers aiming at large-scale industrial production is cost reduction.
  • 610
  • 10 Nov 2023
Topic Review
Chlorophyll and TiO2
Chlorophyll sensitization can improve the performance of semiconductors like TiO2 in photocatalytic reactions and light-harvesting technologies, such as solar cells. Faced with the search for renewable energy sources and sustainable technologies, the application of this natural pigment has been gaining prominence.
  • 573
  • 11 Dec 2023
Topic Review
Vortex Pinning Centers in High-Temperature Superconducting Films
To better pin the vortex at external magnetic fields, the HTS films must contain APCs with desired morphology, dimension, orientation, and concentration. Nanoscale APCs with lateral dimension approaching 2ξ (coherence length) on the order of a few nanometers in HTSs must be generated to suppress the dissipation of vortex motion. This has prompted extensive efforts and exciting results have been obtained in generating nanoscale APCs in HTS films. The research progress of different types and dimensions APCs in detail is introduced and the impact on superconducting performance is summarized.
  • 568
  • 23 Nov 2022
Topic Review
Graphene Sensors for Biomarker Detection
The field of organic-borne biomarkers has been gaining relevance due to its suitability for diagnosing pathologies and health conditions in a rapid, accurate, non-invasive, painless and low-cost way. Due to the lack of analytical techniques with features capable of analysing such a complex matrix as the human breath, the academic community has focused on developing electronic noses based on arrays of gas sensors. These sensors are assembled considering the excitability, sensitivity and sensing capacities of a specific nanocomposite, graphene. In this way, graphene-based sensors can be employed for a vast range of applications that vary from environmental to medical applications. 
  • 517
  • 23 Nov 2023
Topic Review
Smart Applications of Self-Healing Polysiloxanes
Organosilicon polymers (silicones) are of enduring interest both as an established branch of polymer chemistry and as a segment of commercial products. Their unique properties were exploited in a wide range of everyday applications. The research attention polysiloxanes attracted as the materials of choice for various emerging technologies was tremendous. A rapid improvement in bulk modification strategies can be observed as well as the design of a new generation of PDMS-based smart materials, including flexible wearable electronics, sensors, coatings or e-skin. 
  • 488
  • 21 Feb 2024
Topic Review
Characteristics and Applicability of Nanomorphological Structures for Chemosensors
Nanomaterials have the advantage of having a large surface area, making it easier to express more efficient properties, and they have been widely applied recently in various fields. When designing new materials for specific applications, it is often important to control the shape, size distribution, surface properties, dispersion, and agglomeration stability of synthetic nanoparticles, as well as the elemental and nanocrystalline compositions of the materials. Nanomaterials have infinite potential. 
  • 486
  • 19 Oct 2023
Topic Review
Direct Current Triboelectric Nanogenerators from Material Selections
With the global energy shortages, sustainable energy scavenging from the natural environment is desperately needed. Unlike solar cell or wind power, which depends heavily on weather conditions, triboelectric nanogenerator (TENG) has received extensive attention as an efficient all–weather energy–harvesting technology. Based on the coupling principle of contact electrification (CE) and electrostatic induction, conventional TENGs convert mechanical energy into an alternating current (AC) output. However, the typically distributed sensor systems in the ubiquitous Internet of Things (IoTs) request a direct current (DC) input. Direct current triboelectric nanogenerators (DC-TENGs) with the constant output characteristic are critical to satisfy the above requirements.
  • 389
  • 10 Nov 2023
Topic Review
Enhanced Food Packaging Using Alginate, Nanocellulose, Grape Extract
The development of sustainable, active food packaging materials is essential for reducing plastic waste and improving food preservation. This study investigated the fabrication and characterization of bio-based films composed of sodium alginate (Na-alginate), bacterial nanocellulose (BNC), and grape seed extract (GSE) as a natural antioxidant. Films were prepared via casting solutions with 2% Na-alginate, 1% and 2% of BNC, glycerol as a plasticizer, and varying GSE concentrations (0, 0.5, 1, and 2% w/w). The films’ physicochemical properties, including thickness, mechanical strength, water vapor permeability, antimicrobial and antioxidant activity (DPPH assay), were evaluated. To assess practical applicability, blueberries were packaged in these films and stored at 4 °C for four weeks, with spoilage, weight loss, and visual quality monitored. The results demonstrated that GSE significantly enhanced the films’ antioxidant capacity, with 1% GSE achieving an optimal balance between mechanical integrity and bioactivity. Blueberries packaged in GSE-enriched films exhibited lower spoilage, reduced weight loss, and maintained better visual appearance compared to controls. These findings suggest that Na-alginate/BNC/GSE films possess potential as biodegradable active packaging materials for extending the shelf life of perishable fruits.
  • 21
  • 09 Dec 2025
  • Page
  • of
  • 12
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Academic Video Service
Feedback