Synthesis and fluorescent molecular sensing at exciplex emission of pyrene- and cyanobenzene-modified γ-cyclodextrins

2001 ◽  
pp. 388-394 ◽  
Author(s):  
Fumio Hamada ◽  
Miyuki Narita ◽  
Kentaro Kinoshita ◽  
Akira Makabe ◽  
Tetsuo Osa
Keyword(s):  
Molecular Sensing ◽  
Fluorescent Molecular Sensing ◽  
Exciplex Emission

scholarly journals A Personal Journey across Fluorescent Sensing and Logic Associated with Polymers of Various Kinds

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1351 ◽  
Author(s):  
Chao-Yi Yao ◽  
Seiichi Uchiyama ◽  
A. Prasanna de Silva
Keyword(s):  
Phase Separation ◽  
Metal Ion ◽  
Chemical Species ◽  
Polymer Science ◽  
Molecular Sensing ◽  
Fluorescent Sensing ◽  
Molecular Logic ◽  
Fluorescent Molecular Sensing ◽  
Molecular Scale ◽  
Identification Tags

Our experiences concerning fluorescent molecular sensing and logic devices and their intersections with polymer science are the foci of this brief review. Proton-, metal ion- and polarity-responsive cases of these devices are placed in polymeric micro- or nano-environments, some of which involve phase separation. This leads to mapping of chemical species on the nanoscale. These devices also take advantage of thermal properties of some polymers in water in order to reincarnate themselves as thermometers. When the phase separation leads to particles, the latter can be labelled with identification tags based on molecular logic. Such particles also give rise to reusable sensors, although molecular-scale resolution is sacrificed in the process. Polymeric nano-environments also help to organize rather complex molecular logic systems from their simple components. Overall, our little experiences suggest that researchers in sensing and logic would benefit if they assimilate polymer concepts.

scholarly journals Selective Fluorescent Molecular Sensing Based on 2A,2D-Disulfonyl Dibenzosulfolane-diphenyl-capped .BETA.-Cyclodextrin for Phenolic Guests.

2002 ◽  
Vol 18 (6) ◽  
pp. 711-713 ◽  
Author(s):  
Miyuki NARITA ◽  
Naranchimeg DORJPALAM ◽  
Katsunori TERANISHI ◽  
Fumio HAMADA
Keyword(s):  
Molecular Sensing ◽  
Beta Cyclodextrin ◽  
Fluorescent Molecular Sensing

scholarly journals Selective Fluorescent Molecular Sensing by Bis Dansyl-Modified .GAMMA.-Cyclodextrin Dimer.

2000 ◽  
Vol 16 (8) ◽  
pp. 865-869 ◽  
Author(s):  
Miyuki NARITA ◽  
Satoshi MIMA ◽  
Nobuaki OGAWA ◽  
Fumio HAMADA
Keyword(s):  
Molecular Sensing ◽  
Cyclodextrin Dimer ◽  
Fluorescent Molecular Sensing ◽  
Gamma Cyclodextrin

Fluorescent molecular sensing of amino acids bearing an aromatic residue

2001 ◽  
pp. 2108-2113 ◽  
Author(s):  
Luigi Fabbrizzi ◽  
Maurizio Licchelli ◽  
Angelo Perotti ◽  
Antonio Poggi ◽  
Giuliano Rabaioli ◽  
...  
Keyword(s):  
Amino Acids ◽  
Molecular Sensing ◽  
Aromatic Residue ◽  
Fluorescent Molecular Sensing

Fluorescent Molecular Sensing System Based on Tri-Pyrene-Labeled γ-Cyclodextrin at the Hetero Rim

ChemInform ◽  
2005 ◽  
Vol 36 (46) ◽  
Author(s):  
Naranchimeg Dorjpalam ◽  
Masaya Toda ◽  
Hideaki Itoh ◽  
Fumio Hamada
Keyword(s):  
Molecular Sensing ◽  
Sensing System ◽  
Fluorescent Molecular Sensing ◽  
Hetero Rim

scholarly journals Germanium Nanowires as Sensing Devices: Modelization of Electrical Properties

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 507
Author(s):  
Luca Seravalli ◽  
Claudio Ferrari ◽  
Matteo Bosi
Keyword(s):  
Charge Transfer ◽  
Electrical Properties ◽  
Surface Charges ◽  
Molecular Sensing ◽  
Germanium Nanowires ◽  
Physical Mechanisms ◽  
Additional Doping ◽  
Different Types ◽  
N Doping ◽  
Very High

In this paper, we model the electrical properties of germanium nanowires with a particular focus on physical mechanisms of electrical molecular sensing. We use the Tibercad software to solve the drift-diffusion equations in 3D and we validate the model against experimental data, considering a p-doped nanowire with surface traps. We simulate three different types of interactions: (1) Passivation of surface traps; (2) Additional surface charges; (3) Charge transfer from molecules to nanowires. By analyzing simulated I–V characteristics, we observe that: (i) the largest change in current occurs with negative charges on the surfaces; (ii) charge transfer provides relevant current changes only for very high values of additional doping; (iii) for certain values of additional n-doping ambipolar currents could be obtained. The results of these simulations highlight the complexity of the molecular sensing mechanism in nanowires, that depends not only on the NW parameters but also on the properties of the molecules. We expect that these findings will be valuable to extend the knowledge of molecular sensing by germanium nanowires, a fundamental step to develop novel sensors based on these nanostructures.

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