Since their first synthesis, carbon nanotubes (CNTs) gained remarkable research interest owing to their astonishing mechanical properties and extensive range of potential applications in various sectors, such as aerospace, automobile, biomedical, defence, energy, etc. This paper covers numerous characterization techniques, synthesis approaches and properties of the CNTs, reported by earlier researchers in the past. The technological and industrial needs for the development of lightweight nanocomposites have led to the significant advancements in the preparation of CNT-reinforced composites. In preliminary sections, the properties and applications of the CNT-reinforced nanocomposites are elaborated along with the issues related to their preparation. Here, various nanotubes synthesis processes, such as arc discharge, laser ablation and chemical vapour deposition, are exemplified with the support of published works. Furthermore, we have also addressed the several surface modification techniques of CNTs, such as purification, functionalization and dispersion, which make this review novel and exhaustive. In order to address the limitations and challenges incurred during the preparation of various CNT-reinforced polymer/metal matrix composites, an extensive collection of the published literature is reported and discussed, thoroughly. Based on this exhaustive review, some specific observations are made which would facilitate upcoming researches to explore the research opportunities in the preparation of CNTs and CNT-reinforced composites and their potential applications for the high-performance structures/components.

A Comprehensive Review on CNTs and CNT-Reinforced Composites: Syntheses, Characteristics and Applications

Mechanical properties of aluminium-graphene/carbon nanotubes (CNTs) metal matrix composites: Advancement, opportunities and perspective

Recent progress on the enhancement of photocatalytic properties of BiPO4 using π-conjugated materials.

In medical field, previous patients’ cases are extremely private as well as intensely valuable to current disease diagnosis. Therefore, how to make full use of precious cases while not leaking out patients’ privacy is a leading and promising work especially in future privacy-preserving intelligent medical period. In this article, we investigate how to securely invoke patients’ records from past case-database while protecting the privacy of both current diagnosed patient and the case-database and construct a privacy-preserving medical record searching scheme based on ElGamal Blind Signature. In our scheme, by blinded the healthy data of the patient and the database of the iDoctor, respectively, the patient can securely make self-helped medical diagnosis by invoking past case-database and securely comparing the blinded abstracts of current data and previous records. Moreover, the patient can obtain target searching information intelligently at the same time he knows whether the abstracts match or not instead of obtaining it after matching. It greatly increases the timeliness of information acquisition and meets high-speed information sharing requirements, especially in 5G era. What's more, our proposed scheme achieves bilateral security, that is, whether the abstracts match or not, both of the privacy of the case-database and the private information of the current patient are well protected. Besides, it resists different levels of violent ergodic attacks by adjusting the number of zeros in a bit string according to different security requirements. 

<i>PMRSS:</i> Privacy-Preserving Medical Record Searching Scheme for Intelligent Diagnosis in IoT Healthcare

Magnetite nanoparticles: Synthesis methods - A comparative review.

Corrosion behaviour of Aluminium Metal Matrix reinforced with Multi-wall Carbon Nanotube

Design and analysis of mild steel mini truck body for increasing the payload capacity

This chapter provides an overview of the chemical modification of nanotubes and the properties inherited, along with applications of carbon nanotubes in various forms. A carbon nanotube is one of the most promising materials used in the field of materials technology for its exceptional physical and chemical properties, such as high aspect ratio, flexibility, and nano range usage. They also possess very good mechanical, electrical, thermal, optical, and magnetic properties because of their inherent size, structure, and shape. Based on these characteristics, nanotubes are used in diversified applications like energy, nano fabrics, optical engineering, defense and security, nano devices, and bimetallic nanocomposites for biomedical applications. To achieve specific properties for nanotubes they need to be chemically modified by different techniques, such as ball milling, microwave-induced modification, electrochemically assisted covalent modification, and electroless deposition method. These techniques are discussed in this chapter, along with a description of rubber nanocomposites and nanocomposite applications.

Synthesized Carbon Nanotubes and Their Applications

Cloud provides plenty of storage that makes enterprises to move their precious information/documents to the cloud. Since the user moves their valued data to the cloud, security is a major concern between storage service provider and user. To ascertain the security, the cryptography plays vital role in the searchable encryption based document. In this paper, Dynamic multi keyword based search Algorithm is proposed that contain modified fully homomophic encryption and prims Algorithm. Based on keyword frequency present in the document, keywords are sorted and built searchable index for keyword and files. The dynamic tree is constructed using prim‘s algorithm based on keyword and file. The encrypted files in the tree are indexed to keywords using two way Hash table for efficient search and retrival of documents. The files are encrypted using modified ring based fully homomorphic encryption. The experimental result shows that proposed work provides 80 and 86% encryption and decryption throughput and take less indexing time to index the files than existing RC4+.

S. John Alexis

Papers

Corrosion behaviour of Aluminium Metal Matrix reinforced with Multi-wall Carbon Nanotube

Design and analysis of mild steel mini truck body for increasing the payload capacity

Synthesized Carbon Nanotubes and Their Applications

Dynamic multi-keyword based search algorithm using modified based fully homomorphic encryption and Prim’s algorithm

Uniform Corrosion Behavior of AA7075 with Nanoclay