Facile synthesis of pH-responsive gadolinium(III)-doped carbon nanodots with red fluorescence and magnetic resonance properties for dual-readout logic gate operations

Fang, Yaning; Zhou, Lefei; Zhao, Junkai; Zhang, Yali; Yang, Mo; Yi, Changqing

doi:10.1016/j.carbon.2020.05.060

Cited by 37 publications

(28 citation statements)

References 77 publications

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“…Additionally, based on the Gd 3+ -doped CD, they also developed an FL/MR dual-readout logic gates, wherein H + , OH − , Cu 2+ acted as input as they stimulate the fluorescence and MR response in a switched manner. Based on this phenomenon, the Gd 3+ -doped CD was employed in bioimaging [ 164 ]. Table 4 lists some of the other reported CDs with dual-functionality.…”

Section: Cds In Optical-based Analyticalmentioning

confidence: 99%

Carbon Dots: An Emerging Smart Material for Analytical Applications

2021

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Carbon dots (CDs) are optically active carbon-based nanomaterials. These nanomaterials can change their light emission properties in response to various external stimuli such as pH, temperature, pressure, and light. The CD’s remarkable stimuli-responsive smart material properties have recently stimulated massive research interest for their exploitation to develop various sensor platforms. Herein, an effort has been made to review the major advances made on CDs, focusing mainly on its smart material attributes and linked applications. Since the CD’s material properties are largely linked to their synthesis approaches, various synthesis methods, including surface passivation and functionalization of CDs and the mechanisms reported so far in their photophysical properties, are also delineated in this review. Finally, the challenges of using CDs and the scope for their further improvement as an optical signal transducer to expand their application horizon for developing analytical platforms have been discussed.

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Section: Cds In Optical-based Analyticalmentioning

confidence: 99%

Carbon Dots: An Emerging Smart Material for Analytical Applications

2021

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“…Other researchers developed IMPLICATION logic operations using the sensing ability of CDs for Hg (II) and cysteine [ 45 ], AA [ 46 ], Fe 3+ [ 47 ], Hg 2+ , and biothiols [ 48 ], Hg(II), and glutathione [ 49 ]. A multilevel single-output logic system was also developed using gadolinium doped CDs with H + , OH − , Cu 2+ as inputs, which trigger both Fluorescence intensity (FI) and magnetic resonance (MR) signals [ 50 ]. Apart from the fluorescence technique, using magnetic resonance signal for dual readout logic operations is of significant importance, as the combination of FL/MR techniques gives the logic devices better applicability in case of biological application.…”

Section: Logic Outputmentioning

confidence: 99%

Carbon Dots-Based Logic Gates

et al. 2021

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Carbon dots (CDs)-based logic gates are smart nanoprobes that can respond to various analytes such as metal cations, anions, amino acids, pesticides, antioxidants, etc. Most of these logic gates are based on fluorescence techniques because they are inexpensive, give an instant response, and highly sensitive. Computations based on molecular logic can lead to advancement in modern science. This review focuses on different logic functions based on the sensing abilities of CDs and their synthesis. We also discuss the sensing mechanism of these logic gates and bring different types of possible logic operations. This review envisions that CDs-based logic gates have a promising future in computing nanodevices. In addition, we cover the advancement in CDs-based logic gates with the focus of understanding the fundamentals of how CDs have the potential for performing various logic functions depending upon their different categories.

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“…De Silva et al were among the first to describe logic operations by means of molecules, and used fluorescence to do so [66]. Others continued similar work to have combinations of ions or other biologically relevant molecules affect the FI [25,32,43,60,62,[67][68][69][70][71][72][73][74][75][76][77], sometimes in very versatile settings to allow for easy manipulation of the system to create any desired logic gate [31,78]. Another direction has been the use of enzymes to affect the FI in logic operations [33,79].…”

Section: Logic Gates Using Fimentioning

confidence: 99%

“…Both Remón et al and Bai et al claimed to have measured FLT, but made no mention of the values [69, 81]. Fang et al measured the FLT for CD characterization, but not after introduction of analytes [77].…”

Section: Different Kinds Of Logic Gatesmentioning

confidence: 99%

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Fluorescence for biological logic gates

Barnoy

Popovtzer

Fixler

2020

Journal of Biophotonics

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Biological logic gates are smart probes able to respond to biological conditions in behaviors similar to computer logic gates, and they pose a promising challenge for modern medicine. Researchers are creating many kinds of smart nanostructures that can respond to various biological parameters such as pH, ion presence, and enzyme activity. Each of these conditions alone might be interesting in a biological sense, but their interactions are what define specific disease conditions. Researchers over the past few decades have developed a plethora of stimuli‐responsive nanodevices, from activatable fluorescent probes to DNA origami nanomachines, many explicitly defining logic operations. Whereas many smart configurations have been explored, in this review we focus on logic operations actuated through fluorescent signals. We discuss the applicability of fluorescence as a means of logic gate implementation, and consider the use of both fluorescence intensity as well as fluorescence lifetime.

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Facile synthesis of pH-responsive gadolinium(III)-doped carbon nanodots with red fluorescence and magnetic resonance properties for dual-readout logic gate operations

Cited by 37 publications

References 77 publications

Carbon Dots: An Emerging Smart Material for Analytical Applications

Carbon Dots: An Emerging Smart Material for Analytical Applications

Carbon Dots-Based Logic Gates

Fluorescence for biological logic gates

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