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Nanomaterials
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Gold Complex Nanoparticles
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Gold Complex Nanoparticles

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Inorganic Materials and Metal-Organic Frameworks".

Deadline for manuscript submissions: closed (25 May 2022) | Viewed by 7268

Special Issue Editors

Dr. Jolanda Spadavecchia

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Guest Editor
CNRS, UMR 7244, NBD-CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et d’Agents Thérapeutiques Université Paris 13, Sorbonne Paris Cité, Bobigny, France
Interests: colloids synthesis; gold complex; nanotherapeutics; biosensors; Raman spectroscopy; hyperthermia
Dr. Nathalie Dupont

E-Mail Website
Guest Editor
CSPBAT, CNRS UMR 7244, université Sorbonne Paris Nord, France
Interests: solid crystal structures, xrdiffraction, quantum and mechanic molecular modeling of drug moleculesc and nano gold -drug complexes, qsar studies and drug design opimizations.

Special Issue Information

Dear Colleagues,

We kindly invite you to submit your contribution to the Special Issue entitled “Gold Complex Nanoparticles”. This issue will include several topics concerning innovative nanomaterials towards synthesis, nanotherapeutics, modeling conjugate complex, chemical and physical sensing, and nanomedicine, amongst other relevant topics.

The main goal of this issue is to showcase innovative ways of synthetise  gold complex as nanotherapeutics, and nano-based formulations in the development of delivery systems and biosensing . Up-to-date original research and reviews on the ground-breaking applications of nanomaterials will be appreciated.

Your contributions are welcome, and we look forward to receiving your interesting work.

Dr. Jolanda Spadavecchia
Dr. Nathalie Dupont
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. Nanomaterials 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 2900 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

  • synthesis
  • colloids
  • gold complex
  • nanotherapeutics

Published Papers (3 papers)

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Research

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11 pages, 2380 KiB  
Article
Photothermal Conversion Profiling of Large-Scaled Synthesized Gold Nanorods Using Binary Surfactant with Hydroquinone as a Reducing Agent
by Thabang Calvin Lebepe and Oluwatobi Samuel Oluwafemi
Nanomaterials 2022, 12(10), 1723; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12101723 - 18 May 2022
Cited by 7 | Viewed by 1582
Abstract
Photothermal application of gold nanorods (AuNRs) is widely increasing because of their good photothermal conversion efficiency (PCE) due to local surface plasmon resonance. However, the high concentration of hexadecyltrimethylammonium bromide used in the synthesis is a concern. Moreover, the mild and commonly used [...] Read more.
Photothermal application of gold nanorods (AuNRs) is widely increasing because of their good photothermal conversion efficiency (PCE) due to local surface plasmon resonance. However, the high concentration of hexadecyltrimethylammonium bromide used in the synthesis is a concern. Moreover, the mild and commonly used reducing agent-ascorbic acid does not reduce the Au(I) to A(0) entirely, resulting in a low yield of gold nanorods. Herein we report for the first time the PCE of large-scaled synthesized AuNRs using the binary surfactant seed-mediated method with hydroquinone (HQ) as the reducing agent. The temporal evolution of the optical properties and morphology was investigated by varying the Ag concentration, HQ concentration, HCl volumes, and seed solution volume. The results showed that the seed volume, HQ concentration, and HCl volume played a significant role in forming mini-AuNRs absorbing in the 800 nm region with a shape yield of 87.7%. The as-synthesized AuNRs were successfully up-scaled to a larger volume based on the optimum synthetic conditions followed by photothermal profiling. The photothermal profiling analysis showed a temperature increase of more than 54.2 °C at 2.55 W cm−2 at a low optical density (OD) of 0.160 after 630 s irradiation, with a PCE of approximately 21%, presenting it as an ideal photothermal agent. Full article
(This article belongs to the Special Issue Gold Complex Nanoparticles)
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20 pages, 5041 KiB  
Article
Engineering the Aggregation of Dyes on Ligand-Shell Protected Gold Nanoparticles to Promote Plexcitons Formation
by Nicola Peruffo, Giovanni Parolin, Elisabetta Collini, Stefano Corni and Fabrizio Mancin
Nanomaterials 2022, 12(7), 1180; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12071180 - 01 Apr 2022
Cited by 7 | Viewed by 2132
Abstract
The ability to control the light–matter interaction in nanosystems is a major challenge in the field of innovative photonics applications. In this framework, plexcitons are promising hybrid light–matter states arising from the strong coupling between plasmonic and excitonic materials. However, strategies to precisely [...] Read more.
The ability to control the light–matter interaction in nanosystems is a major challenge in the field of innovative photonics applications. In this framework, plexcitons are promising hybrid light–matter states arising from the strong coupling between plasmonic and excitonic materials. However, strategies to precisely control the formation of plexcitons and to modulate the coupling between the plasmonic and molecular moieties are still poorly explored. In this work, the attention is focused on suspensions of hybrid nanosystems prepared by coupling cationic gold nanoparticles to tetraphenyl porphyrins in different aggregation states. The role of crucial parameters such as the dimension of nanoparticles, the pH of the solution, and the ratio between the nanoparticles and dye concentration was systematically investigated. A variety of structures and coupling regimes were obtained. The rationalization of the results allowed for the suggestion of important guidelines towards the control of plexcitonic systems. Full article
(This article belongs to the Special Issue Gold Complex Nanoparticles)
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Review

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24 pages, 7666 KiB  
Review
Biosensing Using SERS Active Gold Nanostructures
by Gour Mohan Das, Stefano Managò, Maria Mangini and Anna Chiara De Luca
Nanomaterials 2021, 11(10), 2679; https://doi.org/10.3390/nano11102679 - 12 Oct 2021
Cited by 36 | Viewed by 4502
Abstract
Surface-enhanced Raman spectroscopy (SERS) has become a powerful tool for biosensing applications owing to its fingerprint recognition, high sensitivity, multiplex detection, and biocompatibility. This review provides an overview of the most significant aspects of SERS for biomedical and biosensing applications. We first introduced [...] Read more.
Surface-enhanced Raman spectroscopy (SERS) has become a powerful tool for biosensing applications owing to its fingerprint recognition, high sensitivity, multiplex detection, and biocompatibility. This review provides an overview of the most significant aspects of SERS for biomedical and biosensing applications. We first introduced the mechanisms at the basis of the SERS amplifications: electromagnetic and chemical enhancement. We then illustrated several types of substrates and fabrication methods, with a focus on gold-based nanostructures. We further analyzed the relevant factors for the characterization of the SERS sensor performances, including sensitivity, reproducibility, stability, sensor configuration (direct or indirect), and nanotoxicity. Finally, a representative selection of applications in the biomedical field is provided. Full article
(This article belongs to the Special Issue Gold Complex Nanoparticles)
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