A DNAzyme-mediated logic gate system based on Ag(i)–cysteine

The Analyst ◽  
2020 ◽  
Vol 145 (20) ◽  
pp. 6572-6578
Author(s):  
Xun Zhang ◽  
Qiang Zhang ◽  
Yuan Liu ◽  
Xiaopeng Wei
Keyword(s):  
Logic Gate ◽  
Logic Circuit ◽  
Silver Ion ◽  
Logical Operations ◽  
Gate System

A switchable logic circuit which can represent three kinds of logical operations by adjusting concentration of silver ion and cysteine (Cys) based on E6 and Ag10c DNAzyme was developed.

Programmable Logic Gates Based on Tunable Multistable Mechanisms

2019 ◽  
Author(s):  
Mohamed Zanaty ◽  
Hubert Schneegans ◽  
Ilan Vardi ◽  
Simon Henein
Keyword(s):  
Logic Gate ◽  
Logic Gates ◽  
Building Blocks ◽  
Programmable Logic ◽  
Logic Device ◽  
Logic Function ◽  
Element Analysis ◽  
Stability Behavior ◽  
Binary Logic ◽  
Logical Operations

Abstract Binary logic operations are the building blocks of computing machines. In this paper, we present a new programmable binary logic gate based on programmable multistable mechanisms (PMM), which are multistable structures whose stability behavior depends on modifiable boundary conditions as defined and analyzed in our previous work. The logical state of a PMM is defined by its stability and logical operations are implemented by modifying the stability behavior of the mechanism. Our programmable logic device has two qualitatively different sets of inputs. The first set determines the logic function to be computed. The second set represents the logical inputs. The output is a single logical value, “true” if the mechanism changes state and “false” otherwise. In this way, we are able to mechanically implement a set of binary logical operations. This implementation is validated using an analytical model characterizing the qualitative stability behavior of the mechanism. This was further verified using finite element analysis and experimental demonstration.

Revealing the switching mechanisms of an off–on–off fluorescent logic gate system

2019 ◽  
Vol 21 (30) ◽  
pp. 16798-16803 ◽  
Author(s):  
Weijie Chi ◽  
Jie Chen ◽  
Qinglong Qiao ◽  
Ying Gao ◽  
Zhaochao Xu ◽  
...  
Keyword(s):  
Logic Gate ◽  
Molecular Logic Gate ◽  
Molecular Logic ◽  
System P ◽  
Gate System

We showed that TICT and PET were responsible for the off–on–off switching mechanisms of a fluorescent molecular logic gate.

Reprogrammable Logic Gate and Logic Circuit Based on Multistimuli-Responsive Raspberry-like Micromotors

2016 ◽  
Vol 8 (24) ◽  
pp. 15654-15660 ◽  
Author(s):  
Lina Zhang ◽  
Hui Zhang ◽  
Mei Liu ◽  
Bin Dong
Keyword(s):  
Logic Gate ◽  
Logic Circuit

scholarly journals Lanthanide luminescent logic gate mimics in soft matter: [H+] and [F−] dual-input device in a polymer gel with potential for selective component release

2015 ◽  
Vol 51 (92) ◽  
pp. 16565-16568 ◽  
Author(s):  
Samuel J. Bradberry ◽  
Joseph P. Byrne ◽  
Colin P. McCoy ◽  
Thorfinnur Gunnlaugsson
Keyword(s):  
Soft Matter ◽  
Logic Gate ◽  
Logic Circuit ◽  
Input Device ◽  
Polymer Gel ◽  
Naked Eye ◽  
Eye Colour ◽  
Colour Changes

Non-covalent incorporation of responsive luminescent lanthanide into a polymer gel produces three-output logic circuit with significant naked-eye colour changes.

A new PET and FRET-based molecular logic circuit mimicking the three-state logic gate

2017 ◽  
Vol 140 ◽  
pp. 460-468 ◽  
Author(s):  
Changlin Zhao ◽  
Zhiqiang Wang ◽  
Xueqing Gong ◽  
Qisong Zhang ◽  
Chengyun Wang ◽  
...  
Keyword(s):  
Logic Gate ◽  
Logic Circuit ◽  
Molecular Logic

pH-Stimulated Concurrent Mechanical Activation of Two DNA “Tweezers”. A “SET−RESET” Logic Gate System

Nano Letters ◽  
2009 ◽  
Vol 9 (12) ◽  
pp. 4510-4514 ◽  
Author(s):  
Johann Elbaz ◽  
Zhen-Gang Wang ◽  
Ron Orbach ◽  
Itamar Willner
Keyword(s):  
Mechanical Activation ◽  
Logic Gate ◽  
Gate System

scholarly journals On the Non-uniqueness Problem in Integrated Information Theory

2021 ◽  
Author(s):  
Jake Hanson ◽  
Sara Imari Walker
Keyword(s):  
Information Theory ◽  
Logic Gate ◽  
Full Range ◽  
Mathematical Concept ◽  
Uniqueness Problem ◽  
Gate System ◽  
Optimization Routine ◽  
Definition Of ◽  
Integrated Information Theory ◽  
Integrated Information

Integrated Information Theory is currently the leading mathematical theory of conscious- ness. The core of the theory relies on the calculation of a scalar mathematical measure of consciousness, Φ, which is deduced from the phenomenological axioms of the theory. Here, we show that despite its widespread use, Φ is not a well-defined mathematical concept in the sense that the value it specifies is neither unique nor specific. This problem, occasionally referred to as “undetermined qualia”, is the result of degeneracies in the optimization routine used to calculate Φ, which leads to ambiguities in determining the consciousness of systems under study. As demonstration, we first apply the mathematical definition of Φ to a simple AND+OR logic gate system and show 83 non-unique Φ values result, spanning a substantial portion of the range of possibilities. We then introduce a Python package called PyPhi-Spectrum which, unlike currently available packages, delivers the entire spectrum of possible Φ values for a given system. We apply this to a variety of examples of recently published calculations of Φ and show how virtually all Φ values from the sampled literature are chosen arbitrarily from a set of non-unique possibilities, the full range of which often includes both conscious and unconscious predictions. Lastly, we review proposed solutions to this degeneracy problem, and find none to provide a satisfactory solution, either because they fail to specify a unique Φ value or yield Φ = 0 for systems that are clearly integrated. We conclude with a discussion of requirements moving forward for scientifically valid theories of consciousness that avoid these degeneracy issues.

scholarly journals E-Logic Trainer Kit : Development of an Electronic Educational Simulator and Quiz Kit for Logic Gate Combinational Circuit by using Arduino as Application

2019 ◽  
Vol 15 (14) ◽  
pp. 67 ◽  
Author(s):  
Mohammad Zulkarnain O. ◽  
Amar Faiz Z.A. ◽  
Syahrul Hisham M. ◽  
Nur Dalila K.A. ◽  
N. Ismail
Keyword(s):  
Engineering Students ◽  
New Technology ◽  
Logic Gate ◽  
Logic Gates ◽  
Logic Circuit ◽  
Student Interest ◽  
Positive Feedbacks ◽  
Display Module ◽  
User Input ◽  
Timing Diagram

To supplement conventional teaching methods, use of new technology have recently being adapted in the current education system. Such examples are implementing simulators and quiz kits in a classroom session to assist teachers in providing standardized evaluation or practical and more direct examples of concepts that are being taught. Additionally, the well-known issue of attracting student interest in a so-called uninteresting conventional lecture may be solved by using this technological method. The objective of this works to provide methods on developing a prototype training kit (named as e-Logic trainer kit or e-LTK) which comprises of an electronic simulator and quiz assessment module to evaluate subject knowledge on logic gates. The e-LTK is developed by using Arduino Mega 2560 as the base microcontroller, equipped with keypad and display module as the user input/output interface. The quiz assessment module contained in the prototype also allows conversion of inputs by combinatorial logic circuits into output in the form of timing diagram. This equipment enables electrical engineering students to simulate several combinations of logic circuit, reinforcing the understanding of logic circuit operation. The effectiveness of using this prototype in educational settings have been evaluated through a survey on students and instructors at Faculty of Technology in Engineering (FTK) in Universiti Teknikal Malaysia Melaka (UTeM). Response has been positive, with 60% of the correspondence has shown positive feedbacks, indicating the usefulness of the prototype kit.

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