ChemInform Abstract: Imprinting of Specific Molecular Recognition Sites in Inorganic and Organic Thin Layer Membranes Associated with Ion-Sensitive Field-Effect Transistors.

ChemInform ◽  
2010 ◽  
Vol 33 (19) ◽  
pp. no-no
Author(s):  
Maya Zayats ◽  
Michal Lahav ◽  
Andrei B. Kharitonov ◽  
Itamar Willner
Keyword(s):  
Molecular Recognition ◽  
Thin Layer ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Recognition Sites ◽  
Inorganic And Organic

Flexible organic field-effect transistors with high-reliability gate insulators prepared by a room-temperature, electrochemical-oxidation process

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15695-15699 ◽  
Author(s):  
Sheng Sun ◽  
Linfeng Lan ◽  
Peng Xiao ◽  
Zhenguo Lin ◽  
Hua Xu ◽  
...  
Keyword(s):  
Thin Layer ◽  
Electrochemical Oxidation ◽  
Field Effect ◽  
Room Temperature ◽  
Oxidation Process ◽  
Field Effect Transistors ◽  
High Reliability ◽  
Organic Field Effect Transistors ◽  
Electrical Stability ◽  
Gate Insulators

Flexible OFETs with electrochemically oxidized gate insulators (AlOx:Nd) covered by a thin layer of Cytop were fabricated on a PEN substrate. The device exhibited higher mobility and better electrical stability.

Ionic liquid thin layer-induced memory effects in organic field-effect transistors

2019 ◽  
Vol 21 (35) ◽  
pp. 18823-18829 ◽  
Author(s):  
Keitaro Eguchi ◽  
Michio M. Matsushita ◽  
Kunio Awaga
Keyword(s):  
Ionic Liquid ◽  
Thin Layer ◽  
Organic Semiconductors ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Memory Effects ◽  
Organic Field Effect Transistors ◽  
Organic Fets

Ionic liquid layers affect the morphology of organic semiconductors, grown on them, and induce memory effects in organic FETs.

scholarly journals Crystallization and microstructure change of semiconductor active thin layer in polymer organic field-effect transistors

2011 ◽  
Vol 60 (2) ◽  
pp. 027201
Author(s):  
Jia Quan-Jie ◽  
Chen Yu ◽  
Tian Xue-Yan ◽  
Yao Jiang-Feng ◽  
Zhao Su-Ling ◽  
...  
Keyword(s):  
Thin Layer ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Microstructure Change

scholarly journals Molecular Recognition by Silicon Nanowire Field-Effect Transistor and Single-Molecule Force Spectroscopy

Micromachines ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 97
Author(s):  
Francisco M. Espinosa ◽  
Manuel R. Uhlig ◽  
Ricardo Garcia
Keyword(s):  
Molecular Recognition ◽  
Single Molecule ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Silicon Nanowire ◽  
Force Spectroscopy ◽  
Label Free ◽  
Electrical Measurements ◽  
Single Molecule Force Spectroscopy ◽  
Adsorption Sites

Silicon nanowire (SiNW) field-effect transistors (FETs) have been developed as very sensitive and label-free biomolecular sensors. The detection principle operating in a SiNW biosensor is indirect. The biomolecules are detected by measuring the changes in the current through the transistor. Those changes are produced by the electrical field created by the biomolecule. Here, we have combined nanolithography, chemical functionalization, electrical measurements and molecular recognition methods to correlate the current measured by the SiNW transistor with the presence of specific molecular recognition events on the surface of the SiNW. Oxidation scanning probe lithography (o-SPL) was applied to fabricate sub-12 nm SiNW field-effect transistors. The devices were applied to detect very small concentrations of proteins (500 pM). Atomic force microscopy (AFM) single-molecule force spectroscopy (SMFS) experiments allowed the identification of the protein adsorption sites on the surface of the nanowire. We detected specific interactions between the biotin-functionalized AFM tip and individual avidin molecules adsorbed to the SiNW. The measurements confirmed that electrical current changes measured by the device were associated with the deposition of avidin molecules.

Multi-transduction of molecular recognition events in metalloporphyrin layers

2009 ◽  
Vol 13 (11) ◽  
pp. 1123-1128 ◽  
Author(s):  
Corrado Di Natale ◽  
Roberto Paolesse ◽  
Arnaldo D'Amico ◽  
Ingemar Lundström ◽  
Anita Lloyd-Spetz
Keyword(s):  
Molecular Recognition ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Chemical Interaction ◽  
Recognition System ◽  
Electric Signal ◽  
Design And Synthesis ◽  
Effect Transistor ◽  
Recognition Systems ◽  
Selection Of

Besides the design and synthesis of appropriate molecular recognition systems, the development of chemical sensors requires a careful selection of the transducer to allow conversion of the chemical interaction into an exploitable electric signal. Metalloporphyrins, which are characterized by manifold of interactions of different strength and selectivity, provide a good example of the complexity of such an issue. In this paper, an example of the different ways to capture interactions occurring in a metalloporphyrin layer is presented. In particular, the properties of mass (quartz microbalance) and surface potential transducers (field effect transistor) are illustrated. Results suggest that field effect transistors are more suitable to preserve the interactions magnitude scale than to maintain the original selectivity of the molecular recognition system.

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