Self-assembled nanomaterials: design principles, the nanostructural effect, and their functional mechanisms as antimicrobial or detection agents

2019 ◽  
Vol 6 (9) ◽  
pp. 1794-1811 ◽  
Author(s):  
Li-Li Li ◽  
Hong-Wei An ◽  
Bo Peng ◽  
Rui Zheng ◽  
Hao Wang
Keyword(s):  
Design Principles ◽  
Ordered Nanostructures ◽  
Non Covalent Interactions ◽  
Self Assembled ◽  
Functional Mechanisms ◽  
Covalent Interactions

Self-assembled nanomaterials have been endowed with designable biofunctions based on non-covalent interactions forming well-ordered nanostructures.

Tetranuclear copper(ii) cubane complexes derived from self-assembled 1,3-dimethyl-5-(o-phenolate-azo)-6-aminouracil: structures, non-covalent interactions and magnetic property

2021 ◽  
Vol 45 (5) ◽  
pp. 2742-2753
Author(s):  
Nishithendu Bikash Nandi ◽  
Atanu Purkayastha ◽  
Shaktibrata Roy ◽  
Julia Kłak ◽  
Rakesh Ganguly ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Exchange Coupling ◽  
Antiferromagnetic Exchange ◽  
Non Covalent Interactions ◽  
Cubane Cluster ◽  
Self Assembled ◽  
Covalent Interactions

A new doubly opened 4 + 2 Cu4O4 cubane cluster exhibits strong antiferromagnetic exchange coupling with J1 = −110.1 cm−1, and J2 = −27.1 cm−1.

scholarly journals Reorganization of Self-Assembled DNA-Based Polymers Using Orthogonally Addressable Building Blocks

2021 ◽  
Author(s):  
Serena Gentile ◽  
Erica Del Grosso ◽  
Leonard J. Prins ◽  
Francesco Ricci
Keyword(s):  
Self Assembly ◽  
Rational Design ◽  
Building Blocks ◽  
Binding Domain ◽  
Non Covalent Interactions ◽  
Sticky Ends ◽  
Self Assembled ◽  
Block Structures ◽  
Covalent Interactions

Taking advantage of the addressability and programmability of DNA/DNA non-covalent interactions we report here the rational design of orthogonal DNA-based addressable tiles that self-assemble into polymer-like structures that can be reconfigured and reorganized by external inputs. The different tiles share the same 5-nucleotide sticky ends responsible for self-assembly but are rationally designed to contain a specific regulator-binding domain that can be orthogonally targeted by different DNA regulator strands (activators and inhibitors). We show that by sequentially adding specific activators and inhibitors it is possible to re-organize in a dynamic and reversible way the formed polymer-like structures to display well-defined distributions: homopolymers made of a single tile, random polymers in which different tiles are distributed randomly and block structures in which the tiles are organized in segments.

scholarly journals Fluorescent supramolecular hydrogels self-assembled from tetraphenylethene (TPE)/single amino acid conjugates

RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20922-20927 ◽  
Author(s):  
Nien-Tzu Chu ◽  
Rajan Deepan Chakravarthy ◽  
Nai-Chia Shih ◽  
Yen-Hsu Lin ◽  
Yen-Chu Liu ◽  
...  
Keyword(s):  
Amino Acid ◽  
Single Amino Acid ◽  
Amino Acid Conjugates ◽  
Non Covalent Interactions ◽  
Ph Conditions ◽  
Self Assembled ◽  
Covalent Interactions

TPE-Ser molecules exhibit non-covalent interactions necessary for hydrogelation under physiological pH conditions.

scholarly journals Smart Supramolecular Self-Assembled Nanosystem: Stimulus-Responsive Hydrogen-Bonded Liquid Crystals

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 448
Author(s):  
Bing Liu ◽  
Tao Yang ◽  
Xin Mu ◽  
Zhijian Mai ◽  
Hao Li ◽  
...  
Keyword(s):  
Structure And Properties ◽  
Self Assembling ◽  
Shape Structure ◽  
Stimulus Responsive ◽  
Inorganic Nanomaterials ◽  
Non Covalent Interactions ◽  
Self Assembled ◽  
Immense Potential ◽  
Covalent Interactions ◽  
Hydrogen Bonded

In a liquid crystal (LC) state, specific orientations and alignments of LC molecules produce outstanding anisotropy in structure and properties, followed by diverse optoelectronic functions. Besides organic LC molecules, other nonclassical components, including inorganic nanomaterials, are capable of self-assembling into oriented supramolecular LC mesophases by non-covalent interactions. Particularly, huge differences in size, shape, structure and properties within these components gives LC supramolecules higher anisotropy and feasibility. Therefore, hydrogen bonds have been viewed as the best and the most common option for supramolecular LCs, owing to their high selectivity and directionality. In this review, we summarize the newest advances in self-assembled structure, stimulus-responsive capability and application of supramolecular hydrogen-bonded LC nanosystems, to provide novel and immense potential for advancing LC technology.

scholarly journals The Law of Attraction: Relating Computed Energetics of Physisorption with Performance of Graphene-Based Sensors for Nitroaromatic Contaminants

2021 ◽  
Author(s):  
Anna Piras ◽  
Ganna Gryn'ova
Keyword(s):  
Density Functional ◽  
Environmental Science ◽  
Tight Binding ◽  
Design Principles ◽  
Electrochemical Sensing ◽  
Pristine Graphene ◽  
Graphene Derivatives ◽  
Non Covalent Interactions ◽  
Law Of Attraction ◽  
Covalent Interactions

<div> <div> <div> <p>The ability to detect persistent nitroaromatic contaminants, e.g. DNT and TNT, with high sensitivity and selectivity is central to environmental science and medicinal diagnostics. Graphene-based materials rise to this challenge, offering supreme performance, biocompatibility, and low toxicity at a reasonable cost. In the first step of the electrochemical sensing process, these substrates establish non-covalent interactions with the analytes, which we show to be indicative of their respective detection limits. Employing a combination of semiempirical tight binding quantum chemistry, meta- dynamics, density functional theory, and symmetry-adapted perturbation theory in conjunction with curated data from experimental literature, we investigate the physisorption of DNT and TNT on a series of functionalised graphene derivatives. In agreement with experimental observations, systems with greater planarity and positively charged substrates afford stronger non-covalent interactions than their highly oxidised distorted counterparts. Despite the highly polar nature of the investigated species, their non-covalent interactions are largely driven by dispersion forces. To harness these design principles, we considered a series of boron and nitrogen (co)doped two-dimensional materials. One of these systems featuring a chain of B–N–C units was found to adsorb nitroaromatic molecules stronger than the pristine graphene itself. These findings form the basis for the design principles of sensing materials and illustrate the utility of relatively low cost in silico procedures for testing the viability of designed graphene-based sensors for a plethora of analytes. </p> </div> </div> </div>

scholarly journals The Law of Attraction: Relating Computed Energetics of Physisorption with Performance of Graphene-Based Sensors for Nitroaromatic Contaminants

2021 ◽  
Author(s):  
Anna Piras ◽  
Ganna Gryn'ova
Keyword(s):  
Density Functional ◽  
Environmental Science ◽  
Tight Binding ◽  
Design Principles ◽  
Electrochemical Sensing ◽  
Pristine Graphene ◽  
Graphene Derivatives ◽  
Non Covalent Interactions ◽  
Law Of Attraction ◽  
Covalent Interactions

<div> <div> <div> <p>The ability to detect persistent nitroaromatic contaminants, e.g. DNT and TNT, with high sensitivity and selectivity is central to environmental science and medicinal diagnostics. Graphene-based materials rise to this challenge, offering supreme performance, biocompatibility, and low toxicity at a reasonable cost. In the first step of the electrochemical sensing process, these substrates establish non-covalent interactions with the analytes, which we show to be indicative of their respective detection limits. Employing a combination of semiempirical tight binding quantum chemistry, meta- dynamics, density functional theory, and symmetry-adapted perturbation theory in conjunction with curated data from experimental literature, we investigate the physisorption of DNT and TNT on a series of functionalised graphene derivatives. In agreement with experimental observations, systems with greater planarity and positively charged substrates afford stronger non-covalent interactions than their highly oxidised distorted counterparts. Despite the highly polar nature of the investigated species, their non-covalent interactions are largely driven by dispersion forces. To harness these design principles, we considered a series of boron and nitrogen (co)doped two-dimensional materials. One of these systems featuring a chain of B–N–C units was found to adsorb nitroaromatic molecules stronger than the pristine graphene itself. These findings form the basis for the design principles of sensing materials and illustrate the utility of relatively low cost in silico procedures for testing the viability of designed graphene-based sensors for a plethora of analytes. </p> </div> </div> </div>

scholarly journals Reorganization of Self-Assembled DNA-Based Polymers Using Orthogonally Addressable Building Blocks

2021 ◽  
Author(s):  
Serena Gentile ◽  
Erica Del Grosso ◽  
Leonard J. Prins ◽  
Francesco Ricci
Keyword(s):  
Self Assembly ◽  
Rational Design ◽  
Building Blocks ◽  
Binding Domain ◽  
Non Covalent Interactions ◽  
Sticky Ends ◽  
Self Assembled ◽  
Block Structures ◽  
Covalent Interactions

Taking advantage of the addressability and programmability of DNA/DNA non-covalent interactions we report here the rational design of orthogonal DNA-based addressable tiles that self-assemble into polymer-like structures that can be reconfigured and reorganized by external inputs. The different tiles share the same 5-nucleotide sticky ends responsible for self-assembly but are rationally designed to contain a specific regulator-binding domain that can be orthogonally targeted by different DNA regulator strands (activators and inhibitors). We show that by sequentially adding specific activators and inhibitors it is possible to re-organize in a dynamic and reversible way the formed polymer-like structures to display well-defined distributions: homopolymers made of a single tile, random polymers in which different tiles are distributed randomly and block structures in which the tiles are organized in segments.

Self-assembled, optically-active {naphthalene diimide}U{cucurbit[8]uril} ensembles in an aqueous environment

2021 ◽  
Author(s):  
Heather Higginbotham ◽  
Subashani Maniam ◽  
Tina Hsia ◽  
Lyle D. Isaacs ◽  
Steven J Langford ◽  
...  
Keyword(s):  
Supramolecular Complex ◽  
Optically Active ◽  
Aqueous Environment ◽  
Naphthalene Diimide ◽  
Non Covalent Interactions ◽  
Self Assembled ◽  
Naphthalene Diimides ◽  
Covalent Interactions

Naphthalene diimides (NDIs) are shown to arrange spontaneously co-facially with cucurbit[8]uril (CB[8]) in an aqueous environment through purely non-covalent interactions. The resultant 2:2 supramolecular complex of NDI and CB[8] is...

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