Recent Advances in Light-Addressable Electrochemical Sensors

Dear Colleagues,

Electrochemical measurements with spatial resolution are essential for a host of applications, from high-throughput multiplexed bioanalysis to heterogeneous biosensing or imaging. Light-addressable electrochemical sensors (LAESs), including techniques such as light-addressable potentiometric sensors (LAPSs), light-addressable electrochemistry (LAE), and photoelectrochemical (PEC) sensing, can achieve addressable electrochemical recordings simply by irradiating target regions on an unstructured semiconductor surface with light. Arising from the photoelectric effect of semiconductors, illuminating LAESs with light can locally induce conductivity in the photoactive layer and create a virtual electrode to record local electrochemical processes. Since the light-activated sensing area is temporal, flexible, and addressable and typically relies on only one electrical connection, LAESs readily provide more possibilities for multiplexed detection and bio(chemical) imaging compared to other, traditional electrochemical sensors. Over the past two decades, LAESs have received significant attention and have undergone considerable progress.

This Special Issue will cover the system, instruments, methods, and photoactive and bio-sensitive materials used to construct LAESs with various bio(chemical) sensing applications, such as investigations of living cells, organoids, or tissue, as well as multi-channel detections of ions, bio(chemical) molecules, or metabolites.

Dr. Jian Wang
Dr. Liping Du
Dr. Wei Chen
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. Sensors 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 2600 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.

• light-addressable electrochemical sensors
• light addressability
• photocurrent
• photoactive materials
• bio-sensitive materials
• photoelectrochemistry
• multiplexed detection
• bio(chemical) imaging
• bio(chemical) sensing