Molecules

Journal Browser

► Journal Browser

Synthesis, Characterization, Photophysical Properties and Applications of Functional Materials

Special Issue Editors
Special Issue Information
Keywords
Published Papers

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Physical Chemistry".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 4821

Share This Special Issue

Special Issue Editors

Dr. Pounraj Thanasekaran

E-Mail Website
Guest Editor

Department of Chemistry, Pondicherry University, Puducherry 605 014, India
Interests: conductivity; dielectric; metal–organic frameworks; photochemistry; sensors

Dr. Veerasamy Sathish

E-Mail Website
Guest Editor

Department of Chemistry, Bannari Amman Institute of Technology, Sathyamangalam 638 401, India
Interests: inorganic photochemistry; chemosensor; nanosensor; biosensor; environmental pollutants

Special Issue Information

Dear Colleagues,

Photoactive functional materials have been generating substantial interest due to their potential applications in organic light-emitting devices (OLEDs), optoelectronics, chemical sensors/probes, and biological labeling. With a focus on the development of various luminous devices, much effort has been devoted to the chemical modification of the materials’ core, such as the incorporation of functional groups, heteroatoms, metal ions, polymers, quantum dots, etc., which could pave the way for the generation of novel photoactive materials with desired properties. These functional materials not only have an interesting structures and unique electronic properties, but have versatile applications in materials science, biology, medicine, etc. For these reasons, they continue to fascinate researchers. Due to the great synthetic advances and the indepth photophysical understanding that have been obtained, some have entered the commercialization phase.

We firmly believe that this Special Issue will provide a collection of both research articles and review articles reflecting the significant progress in the field of photoactive functional materials.

Dr. Pounraj Thanasekaran
Dr. Veerasamy Sathish
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

materials for chemosensing, biosensing and bioimaging
non-linear optical materials
energy and information storage materials
photochromic functional materials (dithienylethene, azo-dye and spiropyrans)
materials for photodynamic therapy
photo-catalytic materials for environmental applications

Published Papers (2 papers)

Download All Papers

Research

Jump to: Review

22 pages, 5110 KiB

Open AccessArticle

Synthesis and Characterization of Methoxy-Exfoliated Montmorillonite Nanosheets as Potential Carriers of 5-Fluorouracil Drug with Enhanced Loading, Release, and Cytotoxicity Properties

by Mashael D. Alqahtani, May N. Bin Jumah, Abdulrahman Al-Hashimi, Ahmed A. Allam, Mostafa R. Abukhadra and Stefano Bellucci

Molecules 2023, 28(15), 5895; https://doi.org/10.3390/molecules28155895 - 5 Aug 2023

Cited by 1 | Viewed by 1383

Abstract

Natural bentonite clay (BE) underwent modification steps that involved the exfoliation of its layers into separated nanosheets (EXBE) and further functionalization of these sheets with methanol, forming methoxy-exfoliated bentonite (Mth/EXBE). The synthetically modified products were investigated as enhanced carriers of 5-fluorouracil as compared to raw bentonite. The modification process strongly induced loading properties that increased to 214.4 mg/g (EXBE) and 282.6 mg/g (Mth/EXBE) instead of 124.9 mg/g for bentonite. The loading behaviors were illustrated based on the kinetic (pseudo-first-order model), classic isotherm (Langmuir model), and advanced isotherm modeling (monolayer model of one energy). The Mth/EBE carrier displays significantly higher loading site density (95.9 mg/g) as compared to EXBE (66.2 mg/g) and BE (44.9 mg/g). The loading numbers of 5-Fu in each site of BE, EXBE, and Mth/EXBE (>1) reflect the vertical orientation of these loaded ions involving multi-molecular processes. The loading processes that occurred appeared to be controlled by complex physical and weak chemical mechanisms, considering both Gaussian energy (<8 KJ/mol) as well as loading energy (<40 KJ/mol). The releasing patterns of EXBE and Mth/EXBE exhibit prolonged and continuous properties up to 100 h, with Mth/EXBE displaying much faster behaviors. Based on the release kinetic modeling, the release reactions exhibit non-Fickian transport release properties, validating cooperative diffusion and erosion release mechanisms. The cytotoxicity of 5-Fu is also significantly enhanced by these carriers: 5-Fu/BE (8.6% cell viability), 5-Fu/EXBE (2.21% cell viability), and 5-Fu/Mth/EXBE (0.73% cell viability). Full article

(This article belongs to the Special Issue Synthesis, Characterization, Photophysical Properties and Applications of Functional Materials)

► Show Figures

Figure 1

Review

Jump to: Research

43 pages, 13723 KiB

Open AccessReview

Recent Progress in Modifications, Properties, and Practical Applications of Glass Fiber

by Yawen Wu, Yangyang Song, Di Wu, Xiaowei Mao, Xiuling Yang, Shaohua Jiang, Chunmei Zhang and Rui Guo

Molecules 2023, 28(6), 2466; https://doi.org/10.3390/molecules28062466 - 8 Mar 2023

Cited by 3 | Viewed by 3058

Abstract

As a new member of the silica-derivative family, modified glass fiber (MGF) has attracted extensive attention because of its excellent properties and potential applications. Surface modification of glass fiber (GF) greatly changes its performance, resulting in a series of changes to its surface structure, wettability, electrical properties, mechanical properties, and stability. This article summarizes the latest research progress in MGF, including the different modification methods, the various properties, and their advanced applications in different fields. Finally, the challenges and possible solutions were provided for future investigations of MGF. Full article

(This article belongs to the Special Issue Synthesis, Characterization, Photophysical Properties and Applications of Functional Materials)

► Show Figures