In “Approaches for the Electrochemical Interrogation of DNA-Based Sensors: A Critical Review,” Miguel Aller Pellitero, Alexander Shaver, and Netzahualcóyotl (Netz) Arroyo-Currás reviewed the specific advantages of the electroanalytical methods most commonly used for the interrogation of DNA-based sensors.

Arroyo-Currás, ECS member and associate editor, Journal of the Electrochemical Society sensors technical area, provided more background information to the article in response to questions from the ECS Blog.

What are DNA-based electrochemical sensors?

These are measurement platforms that employ any form of DNA as the molecular recognition element. We must remember that electrochemistry is extremely sensitive (for example, there is significant work regarding stochastic detection of single entities like molecules, nanoparticles and whole cells and viruses) but lacks specificity; thus, relying on the molecular binding properties of DNA allows us to selectively detect molecules even in complex biological environments. (more…)

Accepting Submissions: December 26, 2019 – March 25, 2020

Submit your manuscripts to the ECS Journal of Solid State Science and Technology Focus Issue on Gallium Oxide Based Materials and Devices II.

About the focus issue

This issue of the ECS Journal of Solid State Science and Technology is the second in a series that aims to cover the growth, characterization, processing and device applications of Ga2O3. GaN and SiC based wide bandgap device technologies have matured and become limited by fundamental material properties. A new class of oxide wide band gap materials are emerging (gallium oxide and aluminum gallium oxide) that offer potentially improved figure of merit over GaN and SiC for power devices. The availability of Ga2O3 single crystals and epitaxial films with large area and excellent quality has led to renewed interest in this ultra-wide bandgap semiconductor for solar-blind photodetectors, sensors, and power electronics. (more…)

Join ECS San Francisco Section on December 12 for a presentation by Yijin Liu:

An Integrated Multi-modal X-ray Microscopy for Energy Material Science

Yijin Liu
Stanford Synchrotron Radiation Light Source
SLAC National Accelerator Laboratory
Menlo Park, CA

When: Thursday, December 12, 2019
Time:
1700h
Where: Sakura Bistro
388 9th Street, Oakland, CA 94607

Free participation; $35 flat fee for dinner 

RSVP to sfsectionecs@gmail.com (more…)

Long Luo, the featured speaker at ECS Detroit Section’s November 21 meeting, presents:

“Bubble-based electrochemical methods for detection of per- and polyfluoroalkyl substances (PFAS) in water”


Long Luo

Assistant Professor, Department of Chemistry
Wayne State University
Detroit, Michigan (more…)

Recent growth in space-related activities has presented numerous opportunities for electrochemistry in space. That’s why Greg Jackson, chair of the ECS High-Temperature Energy, Materials & Processes Division (H-TEMP) and mechanical engineering professor at the Colorado School of Mines, took it upon himself to bring the first-ever symposium dedicated to “Electrochemistry in Space” to the 236th ECS Meeting.

“As a board member and someone who cares about the Society expanding its audience, I felt that there are many activities going on in regards to applying electrochemistry in space and the uniqueness of the space environment merited a special symposium,” said Jackson, lead symposium organizer.

The potential for increased lunar and Martian activities with in situ resource utilization (ISRU), human space flight, and in-space satellite maintenance, and space debris management present many technical challenges and opportunities where electrochemistry plays a central role. (more…)

Bonnie Gray

Bonnie Gray, professor at Simon Fraser University.

Editors’ Choice—Development of Screen-Printed Flexible Multi-Level Microfluidic Devices with Integrated Conductive Nanocomposite Polymer Electrodes on Textiles

Bonnie Gray, a professor at Simon Fraser University’s school of engineering science, was inspired by the city of Vancouver in British Columbia in her latest work.

“Vancouver is well-known for its technical clothing, and I have a lot of friends in the film industry who work in costume design. A combination of these influences and my own engineering background caused me to look further into integrating clothing with technology. That’s how I went on to become involved in developing screen-printed flexible multi-level microfluidic devices on textiles,” said Gray, which led to the fruition of her and lead author Daehan Chung‘s research paper, “Development of Screen-Printed Flexible Multi-Level Microfluidic Devices with Integrated Conductive Nanocomposite Polymer Electrodes on Textiles.”

In their open access paper, published in the Journal of The Electrochemical Society, the pair “present a flexible plastisol-based microfluidic process integrated with conductive nanoparticle composite polymer (C-NCP) electrodes for flexible active microfluidic devices on textile substrates.”

According to Gray, flexible and wearable microfluidic devices are among the newest wearable devices for applications in health monitoring, drug delivery systems, and bio-signal sensing. (more…)

Technical Editor Ajit Khosla and Guest Editors Nick Wu, Peter Hesketh, Muthukumaran Packirisamy, Praveen Kumar Sekhar, Aicheng Chen, Shekhar Bhansali, Jessica Koehne, Larry Nagahara, Thomas Thundat, Netz Arroyo, Kumkum Ahmed, Trisha Andrew, Rangachary Mukundan, and Jeffrey Halpern invite you to submit to the Journal of The Electrochemical Society focus issue on sensor reviews.

Submission deadline | September 18, 2019

Submit manuscripts

(more…)

Interface magazinesAdvertise with ECS

The fall issue of Interface, our quarterly membership magazine, is the perfect opportunity to get your organization’s brand in front of over 6,000 electrochemistry and solid state scientists and engineers! This publication contains technical articles about the latest developments in the field and presents news and information about and for members of ECS. (more…)

Sushanta Mitra, lead author, mechanical and mechatronics engineering professor at the University of Waterloo, and executive director of the Waterloo Institute for Nanotechnology.

“There are a lot of sensors that have been made, a lot of reliable sensors which work really well independently; however, the decision-making always requires a human,” said Ajit Khosla, sensors technical editor of the Journal of The Electrochemical Society (JES) and chair of The Electrochemical Society’s Sensor Division. Which is why the paper, “Artificial Intelligence Based Mobile Application for Water Quality Monitoring” piqued Khosla’s interest in particular.

“AI powered sensors are the future.”

“This is the first time that we have received and accepted a journal paper which involves artificial intelligence (AI), machine learning, water quality management, and sensors,” said Khosla. “This work represents an example of one of those initial steps towards a smart technology driven sustainable society where data acquired by sensors helps AI make human-like decisions or human-like operations. Quantum sensors, quantum computing, and AI will transform the way we live and will play an integral role in achieving sustainability and a sustainable world. AI powered sensors are the future.” (more…)

The recent fatal crash of a Boeing 737 Max 8 aircraft is forcing officials to take a closer look at the airplanes safety system. The accident—which happened just minutes after takeoff, killing all 157 passengers aboard the Ethiopian Airline—is suspected of being a result of a faulty sensory system built to stabilize the aircraft in flight, known as Maneuvering Characteristics Augmentation System (MCAS), according to USA Today.

Why was the MCAS added?

Boeing had originally added the MCAS after redesigning its 737 platform for the Max, changing the placement and size of the aircraft’s engines, consequently altering how the jet handled in flight. As a result, the Max tended to raise its nose in flight; a movement called pitch. If a plane pitches too high, it could lead to crashing or stalling of the aircraft—something the MCAS was installed to detect and prevent. (more…)

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