Colorimetric chiral discrimination of lysine enantiomers and configurable logic gate operation based on fluorescein-functionalized polydiacetylene vesicles

2020 ◽  
Vol 12 (5) ◽  
pp. 673-678 ◽  
Author(s):  
Guang Yang ◽  
Jie Ji ◽  
Siyu Zhang ◽  
Guangyao Li ◽  
Bin Li
Keyword(s):  
Chiral Recognition ◽  
Logic Gate ◽  
Chiral Discrimination ◽  
Gate Operation ◽  
Naked Eye ◽  
Sensitive Sensor ◽  
Colorimetric Visualization

This study describes a sensitive sensor for based on fluorescein-functionalized diacetylene (F-DA) chromatic conjugated vesicle which allows colorimetric visualization for the chiral recognition of lysine by the naked-eye.

Redox-induced target-dependent ratiometric fluorescence sensing strategy and logic gate operation for detection of α-glucosidase activity and its inhibitor

2021 ◽  
Author(s):  
Xucan Yuan ◽  
Yi Sun ◽  
Pengfei Zhao ◽  
Longshan Zhao ◽  
Zhili Xiong
Keyword(s):  
Redox Reaction ◽  
Logic Gate ◽  
Sensitive Detection ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Gate Operation ◽  
Glucosidase Activity ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Ratiometric Fluorescence Sensing

A target-dependent ratiometric fluorescence sensing strategy was designed and fabricated based on redox reaction for highly sensitive detection of α-glucosidase (α-Glu) activity and its inhibitor. In this study, silicon quantum...

ChemInform Abstract: Chiral Discrimination of Fructo-Oligosaccharides Toward Amino Acid Derivatives by Induced-Fitting Chiral Recognition.

ChemInform ◽  
2010 ◽  
Vol 32 (32) ◽  
pp. no-no
Author(s):  
Motohiro Shizuma ◽  
Hiroshi Adachi ◽  
Mishio Kawamura ◽  
Yoshio Takai ◽  
Tokuji Takeda ◽  
...  
Keyword(s):  
Amino Acid ◽  
Chiral Recognition ◽  
Chiral Discrimination ◽  
Amino Acid Derivatives

Realizing an N-two-qubit quantum logic gate in a cavity QED with nearest qubit--qubit interaction

2016 ◽  
Vol 16 (5&6) ◽  
pp. 465-482
Author(s):  
Taoufik Said ◽  
Abdelhaq Chouikh ◽  
Karima Essammouni ◽  
Mohamed Bennai
Keyword(s):  
Quantum Logic ◽  
Cavity Qed ◽  
Logic Gate ◽  
Operation Time ◽  
Logic Gates ◽  
Initial State ◽  
Gate Operation ◽  
Quantum Logic Gates ◽  
Current State ◽  
Phase Gate

We propose an effective way for realizing a three quantum logic gates (NTCP gate, NTCP-NOT gate and NTQ-NOT gate) of one qubit simultaneously controlling N target qubits based on the qubit-qubit interaction. We use the superconducting qubits in a cavity QED driven by a strong microwave field. In our scheme, the operation time of these gates is independent of the number N of qubits involved in the gate operation. These gates are insensitive to the initial state of the cavity QED and can be used to produce an analogous CNOT gate simultaneously acting on N qubits. The quantum phase gate can be realized in a time (nanosecond-scale) much smaller than decoherence time and dephasing time (microsecond-scale) in cavity QED. Numerical simulation under the influence of the gate operations shows that the scheme could be achieved efficiently within current state-of-the-art technology.

Logical Chaotic Resonance in a Bistable System

2020 ◽  
Vol 30 (13) ◽  
pp. 2050196 ◽  
Author(s):  
Yuangen Yao ◽  
Jun Ma
Keyword(s):  
Signal Intensity ◽  
First Passage Time ◽  
Logic Gate ◽  
Response Speed ◽  
Chaotic Signal ◽  
Passage Time ◽  
Bistable System ◽  
Gate Operation ◽  
Intuitive Interpretation

In this work, we demonstrate a new chaotic signal-induced phenomenon that the output of a chaotic signal-driven bistable system can be consistently mapped to specific logic gate operation in an optimal window of chaotic signal intensity. We term this phenomenon logical chaotic resonance (LCR). Then, an intuitive interpretation for LCR phenomenon is given based on potential well map and mean first-passage time. Through LCR mechanism, the chaotic signal with proper intensity is used to obtain reliable logical gate in the bistable system. Besides, appropriately increasing the chaotic signal intensity can effectively improve the response speed of the bistable system to the change of input signal. Finally, the role of chaotic signal in enhancing the capacity of resisting disturbance of parameters is demonstrated.

Carbon nanodots prepared for dopamine and Al3+ sensing, cellular imaging and logic gate operation

2016 ◽  
Vol 68 ◽  
pp. 732-738 ◽  
Author(s):  
Fanyong Yan ◽  
Depeng Kong ◽  
Yunmei Luo ◽  
Qianghua Ye ◽  
Yinyin Wang ◽  
...  
Keyword(s):  
Logic Gate ◽  
Cellular Imaging ◽  
Carbon Nanodots ◽  
Gate Operation

An “on–off–on” fluorescent nanoprobe for recognition of Cu2+ and GSH based on nitrogen co-doped carbon quantum dots, and its logic gate operation

2019 ◽  
Vol 11 (20) ◽  
pp. 2650-2657 ◽  
Author(s):  
Yifang Gao ◽  
Huilin Zhang ◽  
Shaomin Shuang ◽  
Hui Han ◽  
Chuan Dong
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Logic Gate ◽  
Carbon Quantum Dots ◽  
Gate Operation ◽  
Fluorescent Nanoprobe ◽  
Highly Sensitive ◽  
Doped Carbon Dots ◽  
Co Doped

Novel nitrogen co-doped carbon dots (NCDs) were synthesized as a fluorescent “on–off–on” switch for the highly sensitive and selective sensing of Cu2+ and glutathione (GSH) by a straightforward pyrolysis route.

Optical nanoprobes for chiral discrimination

The Analyst ◽  
2020 ◽  
Vol 145 (20) ◽  
pp. 6416-6434
Author(s):  
Arafeh Bigdeli ◽  
Forough Ghasemi ◽  
Nafiseh Fahimi-Kashani ◽  
Samira Abbasi-Moayed ◽  
Afsaneh Orouji ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Chiral Discrimination ◽  
Sensing Systems ◽  
Optical Nanoprobes ◽  
Luminescent Sensing

Chiral recognition can be achieved by exploiting chiral properties of nanoparticles within various colorimetric and luminescent sensing systems.

A novel electrochemical chiral sensor for 3,4-dihydroxyphenylalanine based on the combination of single-walled carbon nanotubes, sulfuric acid and square wave voltammetry

The Analyst ◽  
2014 ◽  
Vol 139 (9) ◽  
pp. 2243-2248 ◽  
Author(s):  
Lisha Chen ◽  
Fengxia Chang ◽  
Lingchen Meng ◽  
Meixian Li ◽  
Zhiwei Zhu
Keyword(s):  
Carbon Nanotubes ◽  
Sulfuric Acid ◽  
Chiral Recognition ◽  
Square Wave Voltammetry ◽  
Single Walled Carbon Nanotubes ◽  
Chiral Discrimination ◽  
Square Wave ◽  
Single Walled Carbon ◽  
Wave Voltammetry ◽  
Walled Carbon Nanotubes

The combination of SWV with chiral SWCNTs and H2SO4 shows chiral discrimination for 3,4-dihydroxyphenylalanine, and the three are indispensable for this chiral recognition.

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