Supramolecular coordination chemistry

Cronin, Leroy

doi:10.1039/b514843j

Cited by 12 publications

(3 citation statements)

References 85 publications

(134 reference statements)

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“…Functionalization via covalent grafting of organic functional groups allows POMs to tune their redox ability, acidity, and solubility, together with a potential modulation of essential features, e.g., stability, bioavailability, and recognition capability. , A lot of POMs containing compounds have been prepared with POMs retaining their structural integrity, including organonitrogen, organosilyl, organophosphonyl, and oxocarbon derivatives of POMs. The heteropolytungstates [α 2 -P 2 W 17 O 61 (SnR)] 7 has been reported with an alkyltin group with promising antitumor activities .…”

Section: Introductionmentioning

confidence: 99%

Selective Isolation of Myosin Subfragment-1 with a DNA-Polyoxovanadate Bioconjugate

Chen

Zhang

et al. 2017

Bioconjugate Chem.

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The bioconjugation of a polyoxometalate (POMs), i.e., dodecavanadate (VO), to DNA strands produces a functional labeled DNA primer, VO-DNA. The grafting of DNA primer onto streptavidin-coated magnetic nanoparticles (SVM) produces a novel composite, VO-DNA@SVM. The high binding-affinity of VO with the ATP binding site in myosin subfragment-1 (S1) facilitates favorable adsorption of myosin, with an efficiency of 99.4% when processing 0.1 mL myosin solution (100 μg mL) using 0.1 mg composite. Myosin adsorption fits the Langmuir model, corresponding to a theoretical adsorption capacity of 613.5 mg g. The retained myosin is readily recovered by 1% SDS (m/m), giving rise to a recovery of 58.7%. No conformational change is observed for myosin after eliminating SDS by ultrafiltration. For practical use, high-purity myosin S1 is obtained by separation of myosin from the rough protein extract from porcine left ventricle, followed by digestion with α-chymotryptic and further isolation of S1 subfragment. The purified myosin S1 is identified with matrix-assisted laser desorption/ionization time-of-flight/mass spectrometry, giving rise to a sequence coverage of 38%.

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Section: Introductionmentioning

confidence: 99%

Selective Isolation of Myosin Subfragment-1 with a DNA-Polyoxovanadate Bioconjugate

Chen

Zhang

et al. 2017

Bioconjugate Chem.

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“…21 Another strategy is the use of coordination chemistry concepts with incorporation of ligands (donor or acceptor) in the coordination sphere of metallic centers to modify electron density. [22][23][24] Therefore, with CDC one may build sophisticated nanoarchitectures with novel properties manifested only at the molecular level.…”

Section: Introductionmentioning

confidence: 99%

Synergistic interaction between gold nanoparticles and nickel phthalocyanine in layer-by-layer (LbL) films: evidence of constitutional dynamic chemistry (CDC)

Alencar

Crespilho

Martins

et al. 2009

Phys. Chem. Chem. Phys.

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The concept of constitutional dynamic chemistry (CDC) based on the control of non-covalent interactions in supramolecular structures is promising for having a large impact on nanoscience and nanotechnology if adequate nanoscale manipulation methods are used. In this study, we demonstrate that the layer-by-layer (LbL) technique may be used to produce electroactive electrodes with ITO coated by tetrasulfonated nickel phthalocyanine (NiTsPc) alternated with poly(allylamine hydrochloride) (PAH) incorporating gold nanoparticles (AuNP), in which synergy has been achieved in the interaction between the nanoparticles and NiTsPc. The catalytic activity toward hydrogen peroxide (H(2)O(2)) in multilayer films was investigated using cyclic voltammetry, where oxidation of H(2)O(2) led to increased currents in the PAH-AuNP/NiTsPc films for the electrochemical processes associated with the phthalocyanine ring and nickel at 0.52 and 0.81 V vs. SCE, respectively, while for PAH/NiTsPc films (without AuNP) only the first redox process was affected. In control experiments we found out that the catalytic activity was not solely due to the presence of AuNP, but rather to the nanoparticles inducing NiTsPc supramolecular structures that favored access to their redox sites, thus yielding strong charge transfer. The combined effects of NiTsPc and AuNP, which could only be observed in nanostructured LbL films, point to another avenue to pursue within the CDC paradigm.

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“…[1][2][3][4] Among all patterns prepared via "bottom-up" routes, the surface confined self-assemblies constituted by molecules have attracted intensive interests, contributable to their potential applications in engineering functional surfaces. [4][5][6][7][8][9][10] To achieve appropriate functionality of the self-assembly decorated surface, the precise arrangement of block molecules on substrate is highly desired, considering the intimate relationship between the low-dimensional surface confined nanopatterns and the performance of the obtained surfaces.…”

Section: Introductionmentioning

confidence: 99%

An STM Investigation on a Metal Induced Structural Evolution of an m-Substituted Bipyridine Derivative on Highly Oriented Pyrolytic Graphite

Wang¹,

Luo²,

Yuan³

2017

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Due to an increasing demand for miniaturized electronics, on-surface molecular assembly has progressed rapidly for its advantage of fabricating highly organized patterns at nanoscale. In this regard, on-surface metal-organic architectures of bipyridine derivates have been invoked owing to moderate strength and flexible direction of metal-ligand interaction. Despite intensive researches on self-assembled monolayers of p-substituted bipyridine derivates and their metal complexes, few reports have addressed the structural evolution of m-substituted ones. In this paper, a 4,4'-dinonyl-2,2'-bipyridine with two substitutional alkyl chains at m-positions was employed as a ligand for construction of metallosupramolecular architectures with zinc and copper centers via metal coordination, respectively. A microscopic observation on metal directed structural transformations of 4,4'-dinonyl-2,2'-bipyridine arrays, together with merits from previous related researches, reveals more understanding on the rational design of on-surface bipyridine derivates based metal-organic architectures.

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Supramolecular coordination chemistry

Cited by 12 publications

References 85 publications

Selective Isolation of Myosin Subfragment-1 with a DNA-Polyoxovanadate Bioconjugate

Selective Isolation of Myosin Subfragment-1 with a DNA-Polyoxovanadate Bioconjugate

Synergistic interaction between gold nanoparticles and nickel phthalocyanine in layer-by-layer (LbL) films: evidence of constitutional dynamic chemistry (CDC)

An STM Investigation on a Metal Induced Structural Evolution of an m-Substituted Bipyridine Derivative on Highly Oriented Pyrolytic Graphite

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