456772

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Self-healing mechanism and bioelectrochemical interface properties of core-shell guanosine-borate hydrogels.

Hai Wang et al.

Journal of colloid and interface science, 590, 103-113 (2021-02-02)

The self-healing mechanism and bioelectrochemical interface properties of supramolecular gels have been rarely explored. In this context, we propose a constitutive "fibril-reorganization" model to reveal the self-healing mechanism of a series of core-shell structured guanosine-borate (GB) hydrogels and emphasize that

Synthesis of new trisulfonated calix[4]arenes functionalized at the upper rim, and their complexation with the trimethyllysine epigenetic mark.

Kevin D Daze et al.

Organic letters, 14(6), 1512-1515 (2012-03-09)

A synthetic route to produce a new family of trisulfonated calix[4]arenes bearing a single group, selectively introduced, that lines the binding pocket is reported. Ten examples, including new sulfonamide and biphenyl-substituted hosts, each with additional binding elements, demonstrate the tuning

Aggregation-Induced Emission (AIE)-Labeled Cellulose Nanocrystals for the Detection of Nitrophenolic Explosives in Aqueous Solutions.

Xiu Ye et al.

Nanomaterials (Basel, Switzerland), 9(5) (2019-05-10)

Aggregation-induced emission (AIE) active cellulose nanocrystals (TPE-CNCs) were synthesized by attaching tetraphenylethylene (TPE) to cellulose nanocrystals (CNCs). The structure and morphology of TPE-CNCs were characterized by FT-IR, XRD, ζ-potential measurements, elemental analysis, TEM, atomic force microscopy (AFM), and dynamic laser

Chan-Lam-type S-arylation of thiols with boronic acids at room temperature.

Hua-Jian Xu et al.

The Journal of organic chemistry, 77(6), 2878-2884 (2012-02-22)

In this work, an efficient CuSO(4)-catalyzed S-arylation of thiols with aryl and heteroaryl boronic acids at room temperature is established. This catalytic system can tolerate a wide variety of thiols and arylboronic acids in the presence of only 5 mol

Adsorption and Release of Rose Bengal on Layer-by-Layer Films of Poly(Vinyl Alcohol) and Poly(Amidoamine) Dendrimers Bearing 4-Carboxyphenylboronic Acid.

Kentaro Yoshida et al.

Polymers, 12(8) (2020-08-23)

Phenylboronic acid-bearing polyamidoamine dendrimer (PBA-PAMAM)/poly(vinyl alcohol) (PVA) multilayer films were prepared through the layer-by-layer (LbL) deposition of PBA-PAMAM solution and PVA solution. PBA-PAMAM/PVA films were constructed successfully through the formation of boronate ester bonds between the boronic acid moiety in

Synthesis and biological evaluation of novel amprenavir-based P1-substituted bi-aryl derivatives as ultra-potent HIV-1 protease inhibitors

Yan, J.; et al.

Bioorganic & Medicinal Chemistry Letters, 22, 784-788 (2012)

On-off-on relay fluorescence recognition of ferric and fluoride ions based on indicator displacement in living cells.

Muthusamy Selvaraj et al.

Analytica chimica acta, 1066, 112-120 (2019-04-28)

A new boronic acid derivative functionalized with a 4-(3-(4-(4,5-diphenyl-1H-imidazole-2-yl)phenyl)-1,2,4-oxadiazol-5-yl)phenyl (IOP) moiety was synthesized for use as a sequential "on-off-on"-type relay fluorescence probe for Fe3+ ions and F- ions with high selectivity and sensitivity under physiological conditions. The introduction of Fe3+

Charge-switchable polymeric complex for glucose-responsive insulin delivery in mice and pigs.

Jinqiang Wang et al.

Science advances, 5(7), eaaw4357-eaaw4357 (2019-07-17)

Glucose-responsive insulin delivery systems with robust responsiveness that has been validated in animal models, especially in large animal models, remain elusive. Here, we exploit a new strategy to form a micro-sized complex between a charge-switchable polymer with a glucose-sensing moiety

Glucose-Sensitivity of Boronic Acid Block Copolymers at Physiological pH

Roy, D.; Sumerlin, B. S.

ACS Macro Letters, 1, 529-532 (2012)

Condensing water vapor to droplets generates hydrogen peroxide.

Jae Kyoo Lee et al.

Proceedings of the National Academy of Sciences of the United States of America, 117(49), 30934-30941 (2020-11-25)

It was previously shown [J. K. Lee et al., Proc. Natl. Acad. Sci. U.S.A, 116, 19294-19298 (2019)] that hydrogen peroxide (H2O2) is spontaneously produced in micrometer-sized water droplets (microdroplets), which are generated by atomizing bulk water using nebulization without the

Sugar-Responsive Layer-by-Layer Film Composed of Phenylboronic Acid-Appended Insulin and Poly(vinyl alcohol).

Chihiro Takei et al.

Chemical & pharmaceutical bulletin, 66(4), 368-374 (2018-04-03)

Previous studies have shown that reversible chemical bond formation between phenylboronic acid (PBA) and 1,3-diol can be utilized as the driving force for the preparation of layer-by-layer (LbL) films. The LbL films composed of a PBA-appended polymer and poly(vinyl alcohol)

Fe3+ and intracellular pH determination based on orange fluorescence carbon dots co-doped with boron, nitrogen and sulfur.

Shengmei Song et al.

Materials science & engineering. C, Materials for biological applications, 118, 111478-111478 (2020-12-02)

The fluorescent boron, nitrogen and sulfur co-doped carbon dots (BNSCDs) were prepared by simple hydrothermal reaction of 4-carboxyphenylboronic acid and 2,5-diaminobenzenesulfonic acid at 200 °C for 8 h. The fluorescence of the BNSCDs could be quenched by Fe3+ based on the electron

A new access to 3-substituted-1(2H)-isoquinolone by tandem palladium-catalyzed intramolecular aminocarbonylation annulation.

Antoine Dieudonné-Vatran et al.

Organic & biomolecular chemistry, 10(13), 2683-2691 (2012-03-01)

An original tribromide derivative based, palladium-catalyzed synthesis of 3-substituted-1(2H)-isoquinolone is described based on a regioselective Suzuki-Miyaura C-C coupling on o-halo-(2,2-dihalovinyl)-benzene followed by a palladium catalyzed amination-carbonylation-cyclization reaction. This sequence efficiently proceeds to build up isoquinolone in fair to good yields

Hybrid Multimodal Imaging Synthons for Chemoselective and Efficient Biomolecule Modification with Chelator and Near-Infrared Fluorescent Cyanine Dye.

Ralph Hübner et al.

Pharmaceuticals (Basel, Switzerland), 13(9) (2020-09-20)

The development of hybrid multimodal imaging synthons (MIS), carrying in addition to a chelator for radiometal labeling also a near-infrared (NIR) fluorescent cyanine dye was the aim of this work. The MIS should be introducible into biomolecules of choice via

A strategy for visual optical determination of glucose based on a smartphone device using fluorescent boron-doped carbon nanoparticles as a light-up probe.

Negar Alizadeh et al.

Mikrochimica acta, 187(1), 14-14 (2019-12-06)

Boronic acid-doped carbon nanoparticles were prepared and are shown to undergo aggregation induced emission (AIE). The nanoparticle composite is a viable fluorescent probe for glucose determination by using the RGB technique and a smartphone. The structure and the chemical composition of

Highly efficient aerobic oxidative hydroxylation of arylboronic acids: photoredox catalysis using visible light.

You-Quan Zou et al.

Angewandte Chemie (International ed. in English), 51(3), 784-788 (2011-12-14)

Electrochemical Assay for Extremely Selective Recognition of Fructose Based on 4-Ferrocene-Phenylboronic Acid Probe and β-Cyclodextrins Supramolecular Complex.

Maria Antonietta Casulli et al.

Small (Weinheim an der Bergstrasse, Germany), 16(44), e2003359-e2003359 (2020-10-10)

The aim of the present paper is to highlight a novel electrochemical assay for an extremely-selective detection of fructose thanks to the use of a supramolecular complex between β-cyclodextrins (β-CDs) and a chemically modified ferrocene with boronic acid named 4-Fc-PB/natural-β-CDs.

Induction of pH sensitivity on the fluorescence lifetime of quantum dots by NIR fluorescent dyes.

Rui Tang et al.

Journal of the American Chemical Society, 134(10), 4545-4548 (2012-03-01)

Modulation of the fluorescence lifetime (FLT) of CdTeSe/ZnS quantum dots (QDs) by near-IR (NIR) organic chromophores represents a new strategy for generating reproducible pH-sensing nanomaterials. The hybrid construct transfers the pH sensitivity of photolabile NIR cyanine dyes to highly emissive

Bio-supported palladium nanoparticles as a phosphine-free catalyst for the Suzuki reaction in water

Zhou, P.; et al.

Royal Society of Chemistry Advances, 2, 1759-1761 (2012)

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