Revisions Log

A log of revisions to articles and news stories.

Nov 26 2024 - The new article provides a broader introduction to 2D materials, including transition metal dichalcogenides (TMDs), borophene, and phosphorene, offering a comprehensive view of the field. Highlights the appeal of 2D materials for energy storage, nanoelectronics, and biomedical applications, whereas the old article focused narrowly on MoS₂ and graphene. The new article organizes content into clear sections: Applications of MoS₂, Direct Band Gap Advantage, Hybrid Systems, and Commercialization, providing a logical progression of ideas. The old article's flow was less structured, mixing comparisons and applications within a single narrative. The updated version discusses: Direct band gap properties of MoS₂ in detail, emphasizing its advantage for optoelectronics. Strain engineering and its role in modifying band gaps, absent in the original. Hybrid MoS₂-graphene systems, illustrating complementary uses rather than rivalry alone. The old article briefly mentioned MoS₂'s band gap but did not explore specific applications in sensors, flexible electronics, or energy storage. The new article elaborates on MoS₂ applications in flexible electronics, energy storage, biomedical applications (these applications were absent or lightly touched upon in the old article). The updated conclusion frames MoS₂ and graphene as complementary materials rather than direct competitors, supported by examples of hybrid systems. The old article framed the relationship more as a rivalry.

Is Molybdenum Disulfide (MoS2) a Serious Rival to Graphene?

Nov 5 2024 - The new article provides context on hydrogen as a renewable energy vector and discusses its production through electrolysis, unlike the brief explanation in the old article. Adds PGM-free catalysts and metal-organic frameworks (MOFs) as alternatives to platinum, and includes specific data on alloyed catalysts. The old version primarily covered platinum and carbon nanotube catalysts. Highlights hybrid nanomaterials and nitrogen-doped carbon nanotubes with reduced graphene oxide for enhanced performance, not previously mentioned. The updated article discusses perovskites and advanced manufacturing methods like atomic layer deposition, offering more detail than the basic thin-film membrane description in the old version. Explores fuel cell use in transportation, zero-emission initiatives, and renewable energy integration. The old article focused mainly on the challenges in fuel cell adoption.

Nanotechnology in Fuel Cells

Oct 17 2024 - The updated article adds more detail on CNT properties, including ballistic electron mobility, capacitance, and stability. It also distinguishes between Single-Walled (SWCNTs) and Multi-Walled CNTs (MWCNTs) with their specific dimensions and applications. The new article includes a novel section on twisted CNTs, highlighting their ability to store 2.5 to 3 times more energy than traditional lithium-ion batteries, which was not discussed in the old version. Discusses Fe-doped CNTs for 17 % better hydrogen storage efficiency, compared to the simpler mention in the old article. The new article introduces CNTs in supercapacitors and wearable energy storage devices, along with energy conversion technologies like fuel cells. These applications were absent in the original article, which focused mostly on lithium-ion batteries and hydrogen storage.

Carbon Nanotubes for Energy Storage Applications

Oct 15 2024 - The new article provides a more detailed definition of nanomaterials, including specific measurements (e.g., surface area-to-volume ratio greater than 60 m²/cm³). New article adds detailed applications (e.g., CNTs in drug delivery, graphene in medical diagnostics). Old version lacked specific real-world examples. The old article primarily focused on general concepts of nanosized thickness. Content reorganized by 0D, 1D, and 2D materials. New article includes recent advancements and materials like MXenes and black phosphorus. Old article focused mainly on graphene and carbon nanotubes.

Nanomaterials: An Introduction

Oct 7 2024 - The original article was UK-centric, discussing challenges specific to UK sensor manufacturing. The updated version shifts to a global perspective, covering the international market and technological developments. The new article includes specific market figures and forecasts, such as the nano-sensor market value growing to $2.37 billion–$3.1 billion by 2032. This level of detail was absent in the original, which focused on general growth potential. Applications for healthcare and environmental monitoring were expanded, with the new article offering more detailed, current examples like submicron-sized nano-biosensors and sustainable sensors for water pollution detection. The updated article includes details on recent innovations, such as eco-friendly, pH-sensitive nano-sensors and AI-based material selection. The original mainly covered broader technical challenges like biocompatibility and affordability.

Global Nano-Sensors Market: Current Trends and Technological Developments

Sep 9 2024 - This article has been revised to offer more detailed information and replace any outdated content.

What is Nanotechnology?

Aug 21 2024 - Old Title: Ethics and Nanomedicine – Analysis Of The Issues and Principles To Be Faced By The Medical Application of Nanotechnology’?. New Title: Ethics in Nanomedicine: Key Issues and Principles

Ethics in Nanomedicine: Key Issues and Principles

Aug 2 2024 - The article has been enhanced with added detail, and outdated content has been updated accordingly.

What is Stanene?

Aug 1 2024 - This article has been modified to integrate the most recent research and more information has been included to provide clarity.

What is an Atomic Force Microscope?

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