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Topic Review
Halide Segregation in Mixed Halide Perovskites
Metal halide perovskites (MHPs) has splendid optoelectronic properties and ease of processing, enabling efficiently fabricating high-performance photovoltaic devices with low-cost. MHPs are easy preparation and processing, but also face inherent instability issues, such as ion migration, halide segregation, phase transition and degradation.
  • 609
  • 04 Mar 2022
Topic Review
Nano-, Micro- and Macro-Scale Impact Tests
Impact resistance is critical in many applications of coating systems involving highly loaded mechanical contact. Nano-impact testing utilises the depth-sensing capability of a multifunctional nanomechanical test system (NanoTest system, Micro Materials Ltd., Wrexham, UK) to perform impact testing at strain rates that are several orders of magnitude higher than those in quasi-static indentation tests.
  • 609
  • 21 Jun 2022
Topic Review
Antimicrobial Properties of Plant Fibers
Healthcare-associated infections (HAI), or nosocomial infections, are a global health and economic problem in developed and developing countries, particularly for immunocompromised patients in their intensive care units (ICUs) and surgical site hospital areas. Recurrent pathogens in HAIs prevail over antibiotic-resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa. For this reason, natural antibacterial mechanisms are a viable alternative for HAI treatment. Natural fibers can inhibit bacterial growth, which can be considered a great advantage in these applications.
  • 609
  • 29 Nov 2022
Topic Review
Types of Hybrid Bio-Based Aerogel Materials
Bio-based aerogels are derived from various renewable sources such as sugar cane, vegetable oils, proteins, starches, chitosan, alginate, pectin, lignin, cellulose, and proteins, which have been shown to be useful in the production of aerogels. These aerogels have special properties that make them well suited for packaging applications and in bioengineering. Studies in this field have led to advances that shed light on their diverse applications, improved properties, and innovative synthesis methods. Researchers have investigated alternative feedstocks for bio-based aerogels to broaden their sources and enhance sustainability. Studies have explored the use of waste materials, agricultural by-products, and unconventional sources to synthesize aerogels, aligning with the principles of a circular and green economy. 
  • 609
  • 04 Jan 2024
Topic Review
Translating Nanobiotechnology in Medical Theranostics
Nanotheranostic is a word we use a bit more than a decade ago to define namaterials with potential or confirmed use as therapeutic and/or diagnostic agents.  Here, we strived to define the properties characteristics and of most commonly used nanomaterials that have been proved or could be apply for a wide range of biomedical and pharmaceutical applications (e.g. biosensing, drug delivery, imaging).
  • 608
  • 25 Nov 2020
Topic Review
Photoactive Heterostructures
In this study we consider the results on the development and exploration of heterostructured photoactive materials with major attention focused on what are the better ways to form this type of materials and how to explore them correctly. Regardless of what type of heterostructure, metal–semiconductor or semiconductor–semiconductor, is formed, its functionality strongly depends on the quality of heterojunction. In turn, it depends on the selection of the heterostructure components (their chemical and physical properties) and on the proper choice of the synthesis method. Several examples of the different approaches such as in situ and ex situ, bottom-up and top-down, are reviewed. At the same time, even if the synthesis of heterostructured photoactive materials seems to be successful, strong experimental physical evidence demonstrating true heterojunction formation are required. A possibility for obtaining such evidence using different physical techniques is discussed.
  • 608
  • 24 Mar 2021
Topic Review
Flexible Pressure Sensor Arrays
Flexible pressure sensors that can maintain their pressure sensing ability with arbitrary deformation play an essential role in a wide range of applications, such as aerospace, prosthetics, robotics, healthcare, human–machine interfaces, and electronic skin. Flexible pressure sensor arrays can visualize touch actions, track motion trajectories, and map pressure distribution in real time with high pressure sensitivity and high resolution.
  • 608
  • 05 Aug 2022
Topic Review
Nanofilms
Nanofilms are thin films that are composed of nanoscale materials and have thicknesses typically ranging from a few nanometers to a few hundred nanometers. Nanofilms have unique properties that make them useful in a wide range of applications, including electronics, biomedicine, manufacturing, food, surface protection, and environmental protection. Nanofilms can be made from a variety of materials, including metals, ceramics, polymers, and composites. They can be designed with specific properties, such as high surface area, improved mechanical and chemical stability, and tailored optical and electrical properties. These unique properties of nanofilms make them useful in a wide range of applications.
  • 608
  • 06 Feb 2023
Topic Review
Surface Plasmon Coupled Emission Technology
Novel nano-engineering protocols have been actively synergized with fluorescence spectroscopic techniques to yield higher intensity from radiating dipoles, through the process termed plasmon-enhanced fluorescence (PEF). Consequently, the limit of detection of analytes of interest has been dramatically improvised on account of higher sensitivity rendered by augmented fluorescence signals. Metallic thin films sustaining surface plasmon polaritons (SPPs) have been creatively hybridized with such PEF platforms to realize a substantial upsurge in the global collection efficiency in a judicious technology termed surface plasmon-coupled emission (SPCE). This Editorial Review by Dr. Seemesh Bhaskar, University of Illinois Urbana-Champaign, provides a spotlight on the latest developments in SPCE substrate engineering to the broad audience of photo-plasmonics, spectroscopy, micro- & nanotechnology, life sciences, thin films and point-of-care diagnostics.
  • 608
  • 13 Mar 2023
Topic Review
G-Quadruplex Structures in Plants
G-quadruplex (G4) oligonucleotides are higher-order DNA and RNA secondary structures of enormous relevance due to their implication in several biological processes and pathological states in different organisms.  Plants offer a cornucopia of phytocompounds that, in many cases, are effective in binding and modulating the thermal stability of G4s and, on the other hand, contain almost unexplored G4 motifs in their genome that could inspire new biotechnological strategies.
  • 607
  • 10 Nov 2022
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