The pore structure determines the transportation speed of the gases in the porous materials and the sensitive property of the sensors. Yingqiao Teng, Xinai Zhang, Ying Fu, Huijie Liu, Zhongchuan Wang, Litong Jin, Wen Zhang. The information is provided in the form of a measurable physical signal that is correlated with the concentration of a certain chemical species (termed as analyte). The recognition is not selective at the molecular identity but rather to a signal pattern recognition and multicomponent analysis. A colorimetric strategy for assay of protease activity based on gold nanoparticle growth controlled by ascorbic acid and Cu(II)-coordinated peptide. DNA probe modified with 3-iron bis(dicarbollide) for electrochemical determination of DNA sequence of Avian Influenza Virus H5N1. Collagen Membranes with Ribonuclease Inhibitors for Long-Term Stability of Electrochemical Aptamer-Based Sensors Employing RNA. Zhiqiang Liang, Aiping Duan, Xiaoxi Li, Fengzhen Liu, Li Liu, Keming Wang, Xinjian Liu. Due to their simple manufacturing process and their high sensitivity and precision, ceramic sensors have many application prospects. Chemical sensors for gas detection are based on multi-layer systems which lead to the formation of three phase boundaries with the gas. Such an effect has been demonstrated for the sensing of anions such as carboxylates and fluorides.[43]. White . h�b```�������ea�h4d�yAҿ�Ѧ��������Ů�"Q"� [email protected]���Xbq17X$������#��;�&0�s��.ȅY�X_ Simple electrochemical sensing of attomolar proteins using fabricated complexes with enhanced surface binding avidity. Boronic acids in supramolecular chemistry: Saccharide recognition, "Fluorescent chemosensors: the past, present and future", "Luminescent sensors and switches in the early 21st century", "Current developments in fluorescent PET (photoinduced electron transfer) sensors and switches", "Synthetic fluorescent probes for studying copper in biological systems", "Luminescent probes for the bioimaging of small anionic species in vitro and in vivo", "The development of ruthenium(II) polypyridyl complexes and conjugates for in vitro cellular and in vivo applications", "Chemical probes for molecular imaging and detection of hydrogen sulfide and reactive sulfur species in biological systems", "Anion sensing by small molecules and molecular ensembles", "A new class of fluorescent pH indicators based on photo-induced electron transfer", "Luminescent sensors based on quantum dot–molecule conjugates", "An overview of nanoparticles commonly used in fluorescent bioimaging", "Using lanthanide ions in molecular bioimaging", "Molecular logic gates: the past, present and future", https://en.wikipedia.org/w/index.php?title=Molecular_sensor&oldid=976482193, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 September 2020, at 05:19. Get article recommendations from ACS based on references in your Mendeley library. Aptamers as functional bionanomaterials for sensor applications. Label-free optical detection of thrombin using a liquid crystal-based aptasensor. Chemical sensors are devices that transform chemical information, ranging from the concentration of a specific sample component to overall composition analysis, into an analytically useful signal.1 For this scope, chemical sensors are typically made of two main components: the sensing material and the transducer. Chemosensors are normally developed to be able to interact with the target species in reversible manner, which is a prerequisite for continuous monitoring. Photodriven Regeneration of G-Quadruplex Aptasensor for Sensitively Detecting Thrombin. Besides transistors, MOS capacitors and Schottky diodes with catalytic gate contacts have been developed for gas-sensing purposes, the basic sensing mechanism being common to all the different field effect sensor devices. Biomimetic recognition elements cover all recognition elements based on host–guest molecular recognition. Label-Free Electrochemical DNA Detection Based on Electrostatic Interaction between DNA and Ferrocene Dendrimers. This article explains why, how, and where graphene will take us next. of the chemosensor. In principle the two mechanisms are based on the same idea; the communication pathway is in the form of a through-space electron transfer from the electron rich receptors to the electron deficient fluorophores (through space). The working principle behind the humidity sensitivity and gas sensitivity of ceramic sensors is as follows: when microporous ceramics are in a gas or liquid medium, some compositions in the medium are absorbed by or react with the porous body, leading to the change of the electric potential or current, and then the composition of the gas or liquid is detected [9].