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Guest Editor

Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
Interests: photodetectors; sensors; nanofabrication; nanoelectronics; integrated photonics; semiconductor devices; semiconductor physics
Special Issues, Collections and Topics in MDPI journals

Dr. Yufeng Liu
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Guest Editor

School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
Interests: quantum dots; optoelectronic divices

Prof. Dr. Fu-Gen Wu

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Guest Editor

State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, China
Interests: drug delivery; nanomedicine; cancer therapy; antibacterial; pharmaceuticals
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Photodetectors and biosensors are indispensable devices for information acquisition and transformation in the era of Internet of Things (IoT). In scientific research, the information conveyed by these sensors can often provide invaluable insights into the nature of many physical, chemical, and biological phenomena. In photodetectors and optical biosensors, light-matter interaction is a fundamental process essential to the acquisition of information. Coupling light waves (or photons) to reduced-dimensional matters such as nanoparticles not only gives rise to novel physical and chemical properties but also opens up new avenues for sensing lights and biological components. Meanwhile, the large surface-to-volume ratio of nanoparticles also offers new opportunities for boosting the sensitivity of non-optical biosensors.

In this Special Issue “Nanoparticle-Based Photodetectors and Biosensors”, we invite authors to submit original research and comprehensive review papers with experimental and/or theoretical results on leveraging nanoparticles for photodetection and/or biosensing. The research topics are broadly defined, including, but not limited to, nanoparticle preparation and characterization, photodetectors working in the ultraviolet (UV), visible, or infrared spectral domain, the application of these detectors for biosensing, optical and non-optical biosensors, sensor interfacing and signal processing, etc.

Dr. Yang Zhang
Dr. Yufeng Liu
Prof. Dr. Fu-Gen Wu
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. Biosensors is an international peer-reviewed open access monthly 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 2200 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

nanoparticles
quantum dots
photodetectors
biosensors
nanoprobes
imaging
fluorescence
infrared
light-emission
read-out circuits

Published Papers (2 papers)

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Research

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Open AccessArticle

Sulfur-Doped Organosilica Nanodots as a Universal Sensor for Ultrafast Live/Dead Cell Discrimination

and

Biosensors 2022, 12(11), 1000; https://doi.org/10.3390/bios12111000 - 10 Nov 2022

Cited by 2 | Viewed by 816

Abstract

Rapid and accurate differentiation between live and dead cells is highly desirable for the evaluation of cell viability. Here, we report the application of the orange-emitting sulfur-doped organosilica nanodots (S-OSiNDs) for ultrafast (30 s), ultrasensitive (1 μg/mL), and universal staining of the dead bacterial, fungal, and mammalian cells but not the live ones, which satisfies the requirements of a fluorescent probe that can specifically stain the dead cells. We further verify that the fluorescence distribution range of S-OSiNDs (which are distributed in cytoplasm and nucleus) is much larger than that of the commercial dead/fixed cell/tissue staining dye RedDot2 (which is distributed in the nucleus) in terms of dead mammalian cell staining, indicating that S-OSiNDs possess a better staining effect of dead cells than RedDot2. Overall, S-OSiNDs can be used as a robust fluorescent probe for ultrafast and accurate discrimination between dead and live cells at a single cell level, which may find a variety of applications in the biomedical field. Full article

(This article belongs to the Special Issue Nanoparticle-Based Photodetectors and Biosensors)

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Graphical abstract

Review

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Open AccessReview

Graphene-Based Electrochemical Biosensors for Breast Cancer Detection

Ali Mohammadpour-Haratbar

Seyyed Behnam Abdollahi Boraei

Yasser Zare

Kyong Yop Rhee

and

Soo-Jin Park

Biosensors 2023, 13(1), 80; https://doi.org/10.3390/bios13010080 - 03 Jan 2023

Viewed by 993

Abstract

Breast cancer (BC) is the most common cancer in women, which is also the second most public cancer worldwide. When detected early, BC can be treated more easily and prevented from spreading beyond the breast. In recent years, various BC biosensor strategies have been studied, including optical, electrical, electrochemical, and mechanical biosensors. In particular, the high sensitivity and short detection time of electrochemical biosensors make them suitable for the recognition of BC biomarkers. Moreover, the sensitivity of the electrochemical biosensor can be increased by incorporating nanomaterials. In this respect, the outstanding mechanical and electrical performances of graphene have led to an increasingly intense study of graphene-based materials for BC electrochemical biosensors. Hence, the present review examines the latest advances in graphene-based electrochemical biosensors for BC biosensing. For each biosensor, the detection limit (LOD), linear range (LR), and diagnosis technique are analyzed. This is followed by a discussion of the prospects and current challenges, along with potential strategies for enhancing the performance of electrochemical biosensors. Full article

(This article belongs to the Special Issue Nanoparticle-Based Photodetectors and Biosensors)

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