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Topic Review
MXenes for Nanogenerators
Due to its superior advantages in terms of electronegativity, metallic conductivity, mechanical flexibility, customizable surface chemistry, etc., 2D MXenes for nanogenerators have demonstrated significant progress. MXene-based composites have been shown to exhibit improved energy conversion efficiency compared to traditional energy harvesting materials. The voltage output of MXene-based nanogenerators depends on several factors, including the specific MXene material used, the configuration of the device, and the mechanical energy input.
  • 431
  • 05 Jul 2023
Topic Review
MXenes as Electrode Materials for Supercapacitors
MXenes have been considered to be potential building blocks for composites for use in energy storage applications due to their distinctive 2D wafer structure and superior electrical conductivity. MXenes have been combined with multiple active ingredients, including metal oxides and conductive polymers, to produce a synergistic effect. The synthesis method of MXene shows various surface termini and topographies with different energy storage properties, and there have been multiple studies examining surface modification, stoichiometric ratio, and electrode composition control.
  • 861
  • 09 Mar 2023
Topic Review
MXenes and Their Composites in Sodium-Ion Batteries
The typical two-dimensional layered structure materials, MXenes, are widely used in energy conversion and storage due to their high conductivity, ion transport ability, and rich surface structures. MXenes and their composites have been widely employed in secondary batteries, especially sodium-ion batteries (SIBs), with obvious performance improvement. 
  • 505
  • 01 Feb 2023
Topic Review
MXenes
Recent progress in the application of new 2D-materials—MXenes—in the design of biosensors, biofuel cells and bioelectronics is overviewed and some advances in this area are foreseen. Recent developments in the formation of a relatively new class of 2D metallically conducting MXenes opens a new avenue for the design of conducting composites with metallic conductivity and advanced sensing properties. Advantageous properties of MXenes suitable for biosensing applications are discussed. Frontiers and new insights in the area of application of MXenes in sensorics, biosensorics and in the design of some wearable electronic devices are outlined. Some disadvantages and challenges in the application of MXene based structures are critically discussed.
  • 903
  • 08 Jan 2021
Topic Review
MXene–Metal Composites
MXene, an advanced family of 2D ceramic material resembling graphene, has had a considerable impact on the field of research because of its unique physiochemical properties. MXene has been synthesized by the selective etching of MAX via different techniques. However, with the passage of time, due to the need for further progress and improvement in MXene materials, ideas have turned toward composite fabrication, which has aided boosting the MXene composites regarding their properties and applications in various areas.
  • 857
  • 27 Apr 2022
Topic Review
MXene-Based NA Biosensors in the Agricultural Food System
MXene is a two-dimensional (2D) nanomaterial that exhibits several superior properties suitable for fabricating biosensors. Likewise, the nucleic acid (NA) in oligomerization forms possesses highly specific biorecognition ability and other features amenable to biosensing. Hence the combined use of MXene and NA is becoming increasingly common in biosensor design and development. NAs in oligomerization forms are usually integrated into biosensors as biorecognition elements due to their high specificity toward different target entities. The most well-known NAs are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). According to the development stage, there are three kinds of NA biosensors, each with a unique function: (1) genosensor, (2) aptasensor, and (3) DNAzyme/aptazyme biosensors. These biosensors are now widely explored and used in different areas, e.g., food safety monitoring, environment analysis, etc.
  • 565
  • 19 Dec 2022
Topic Review
MXene-Based Membranes
MXene (Figure 1a) is a younger member of the 2D family and has been widely fabricated into both laminar as well as pristine nanosheet membranes using different methods.
  • 525
  • 01 Dec 2021
Topic Review
MXene
The MXenes are a kind of 2D metal carbide/nitride with an alternative atomic arrangement of Mn+1Xn (M = transition metals; X = C, N; n = 1, 2, 3, 4).
  • 2.8K
  • 23 Feb 2021
Topic Review
Mussel-Inspired Zero-Dimensional Nanomaterials-Loaded Hydrogels
Hydrogels, with 3D hydrophilic polymer networks and excellent biocompatibilities, have emerged as promising biomaterial candidates to mimic the structure and properties of biological tissues. Nanomaterials can be classified into three main types based on their dimensionality (size and morphology): zero-dimensional (0D), one-dimensional (1D), and two-dimensional (2D). The 0D nanomaterials are solid, porous, and hollow structures, such as mesoporous silica nanoparticles (NPs), metal-organic frameworks, hydroxyapatite NPs, iron oxide magnetic NPs, silver NPs, and conductive polymer-based NPs.
  • 415
  • 14 Apr 2023
Topic Review
Mussel-Inspired Catechol Functionalisationto Enhance Biomaterial Adhesion
Biomaterials have long been explored in regenerative medicine strategies for repair or replacement of damaged organs and tissues. However, poor adhesion under wet conditions (like those found in tissues) has thus far limited their wider application. Indeed, despite its favourable physicochemical properties, facile gelation and biocompatibility, gellan gum (GG)-based hydrogels lack the tissue adhesiveness required for effective clinical use. Aiming at assessing whether substitution of GG by dopamine (DA) could be a suitable approach to overcome this problem, database searches were conducted on PubMed® and Embase® up to 02 March 2021, for studies using biomaterials covalently modified with a catechol-containing substituent conferring improved adhesion properties. In this regard, a total of 47 reports (out of 700 manuscripts, ~ 6.7%) were found to comply with the search/selection criteria, the majority of which (34/47, ~ 72%) describing modification of natural polymers, such as chitosan (11/47, ~ 23%) and hyaluronic acid (6/47, ~ 13%); conjugation of dopamine (as catechol “donor”) via carbodiimide coupling chemistry was also predominant. Overall, there is ample literature evidence that bio-inspired substitution of polymers of natural and synthetic origin by DA or other catechol moieties greatly improves adhesion to biological tissues.
  • 680
  • 13 Oct 2021
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