Results 101 to 110 of about 27,423 (280)

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors

Nature Communications, 2019
The rationale design of optimized organic electrochemical transistors (OECTs) for next-generation bioelectronics requires further exploration of the underlying device physics.
Paolo Romele, Matteo Ghittorelli, Zsolt Miklós Kovács-Vajna, Fabrizio Torricelli   +3 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Biomolecule sensors based on organic electrochemical transistors

npj Flexible Electronics
Biosensors based on organic electrochemical transistors (OECTs) have been a research highlight in recent years owing to their remarkable biocompatibility, low operating voltage, and substantial signal amplification capability.
Zhongyou Lu, Kun Xu, Kai Xiao, Qibin Xu, Li Wang, Peng Li, Jinhao Zhou, Dan Zhao, Libing Bai, Yuhua Cheng, Wei Huang   +10 more
doaj   +1 more source

All-printed large-scale integrated circuits based on organic electrochemical transistors

Nature Communications, 2019
Though designing digital circuits using organic electrochemical transistors (OECTs) is promising due to their high performance, inherent large footprint limits adoption.
Peter Andersson Ersman, Roman Lassnig, Jan Strandberg, Deyu Tu, Vahid Keshmiri, Robert Forchheimer, Simone Fabiano, Göran Gustafsson, Magnus Berggren   +8 more
doaj   +1 more source

Organic Electrochemical Transistor for Biological Applications

, 2019
Bioelectronics is a strong emerging field, bridging the interface of organic electronics with the world of biology. One popular theme has been to use the organic electrochemical transistor (OECT). Its key advantage is the local high amplification at low-voltage operation, offering excellent biocompatibility and ease of fabrication. The OECT has yielded
openaire   +4 more sources

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

Distributed environmental monitoring [PDF]

, 2013
With increasingly ubiquitous use of web-based technologies in society today, autonomous sensor networks represent the future in large-scale information acquisition for applications ranging from environmental monitoring to in vivo sensing.
Cleary, John, Collins, Fiachra, Diamond, Dermot, Fay, Cormac, Zuliani, Claudio   +4 more
core  

Graphene transistors are insensitive to pH changes in solution

, 2011
We observe very small gate-voltage shifts in the transfer characteristic of as-prepared graphene field-effect transistors (GFETs) when the pH of the buffer is changed. This observation is in strong contrast to Si-based ion-sensitive FETs.
Alexey Tarasov, Ang P. K., Avouris Ph., Bae S., Bergveld P., Bhaviripudi S., Bousse L., Chakarova-Käck S. D., Chen F., Chen S. Y., Chen Z. H., Cheng Z. G., Christian Schönenberger, Cohen-Karni T., Cornelia Nef, Dankerl M., Das Sarma S., Farmer D. B., Heller I., Knopfmacher O., Krüger M., Larrimore L., Lee S., Levesque P. L., Li X. S., Li X. S., Markus Weiss, Michel Calame, Mkhoyan K. A., Novoselov K. S., Ohno Y., Oren Knopfmacher, Ristein J., Wang X. R., Wangyang Fu, Williams J. R., Zhang Y. B.   +36 more
core   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source