Grafting polyethylenimine with quinoline derivatives for targeted imaging of intracellular Zn 2+ and logic gate operations

Fluorescence Emission of Polyethylenimine-Derived Polymer Dots and Its Application to Detect Copper and Hypochlorite Ions

“…The abundant amino groups on the PEI molecule have been extensively studied and developed for the preparation of fluorescent materials. ,,− The preparation of the N-PDs is based on an amidation reaction. The rich primary and secondary amine functional groups on PEI chemically react with the carboxyl groups on CA at mild temperatures to form a product containing – CO–NH– bonds.…”

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

“…The increasing demands of information technology for miniaturization and function density prompts the research community to develop intelligent materials which can serve as molecular logic gates to conduct molecular computing and provide measurable output [ [9], [10], [11], [12], [13], [14], [15]]. Enlightened by the pioneering work of de Silva in 1993 [16], all 16 fundamental logic gates, advanced circuits, and even neural network molecular logic gate, have been successfully demonstrated using various chemical systems including organic fluorophores, biomacromolecules and nanomaterials [ [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31] , [32], [33], [34], [35], [36]]. Although the promising performance of the reported materials, it is still compelling to investigate new intelligent materials for advanced molecular logic gates which show better operation stability and applicability for biomedical applications.…”

Development of gold nanoparticles-aptamer nanocomposite for multiplexed analysis of antibiotics and design of molecular logic gates

“…Inspired by the observations in the fluorescence switching of AuNPs-aptamers by antibiotics (CAP and Strep) and metal ions (Hg 2+ and Ni 2+ ), a fluorometric logic system was designed to implement logic operations such as YES, NOT, INH, OR and (2-4)-Decoder (figure 3). For a molecular logic operation, specific chemicals serve as its inputs, while the production of a particular chemical species serves as its outputs [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. It has been well-documented that various chemical systems including biomacromolecules, organic molecules [51], and nanomaterials especially carbon dots [48,49,53,54], AuNPs [40,55,56] have been successfully conditioned to implement all 16 fundamental logic gates and even neural network molecular logic gates.…”

“…For a molecular logic operation, specific chemicals serve as its inputs, while the production of a particular chemical species serves as its outputs [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. It has been well-documented that various chemical systems including biomacromolecules, organic molecules [51], and nanomaterials especially carbon dots [48,49,53,54], AuNPs [40,55,56] have been successfully conditioned to implement all 16 fundamental logic gates and even neural network molecular logic gates. Since molecular logic gates do not require the homogeneity of input and output, one of its direct applications may be in the field of chemo-/bio-sensing.…”