This paper presents the design and testing of a one-axis piezoelectric accelerometer made from cellulose zinc oxide nanowires (ZnO NWs) hydrothermally grown on paper. The adopts cantilever-based configuration with two parallel cantilever beams attached proof mass. A piece U-shaped, ZnO-NW-coated is top beams, serving as strain sensing element for acceleration measurement. electric charges produced are converted into voltage output using custom-made charge amplifier circuit. device...

Rhodium-catalyzed highly regio- and enantioselective hydroamination of allenes is reported.

Nitroxide polymer brushes were covalently patterned on flexible conducting substrates via surface-initiated atom transfer radical polymerization and microcontact printing. As a cathode of organic batteries, the nitroxide prevent from dissolving into electrolyte solvents, which improves cycle-life performance batteries.

Nitroxide polymer brushes for thin-film electrodes organic radical batteries are synthesized via surface-initiated atom transfer polymerization (SI-ATRP). Patterned nitroxide brush fabricated by microcontact printing. The thickness of the is proportional to time SI-ATRP. results cyclic voltammetry and AC impedance indicate that when thicker than 55 nm, poly(2,2,6,6-tetramethylpiperidin-4-yl methacrylate) (PTMPM) segment at bottom not sufficiently oxidized yield a during 10 min oxidation...

This paper describes a new type of paper-based piezoelectric touch pad integrating zinc oxide nanowires (ZnO NWs), which can serve as user interfaces in electronics. The sensing functionality these pads is enabled by the property ZnO NWs grown on using simple, cost-efficient hydrothermal method. A piece ZnO-NW with two screen-printed silver electrodes forms button, and touch-induced electric charges from button are converted into voltage output charge amplifier circuit. consisting an array...

A rhodium-catalyzed regioselective addition of sulfonyl hydrazides to allenes is reported.

ESIPT and solvent-assisted ESPT in isomeric phenyl naphthols naphthyl phenols 5-8 were investigated by preparative photolyses CH3CN-D2O, fluorescence spectroscopy, LFP, ab initio calculations. takes place only 5 (D-exchange Φ = 0.3), whereas 6-8 undergo PT with much lower efficiencies. The efficiency of the is mainly determined different populations reactive conformers ground state NEER principle. D-exchange experiments calculations using RI-CC2/cc-pVDZ show that S1 deactivates direct from...

Abstract Irradiation of 2‐phenyl‐1‐naphthol ( 6 ) in CH 3 CN/D 2 O (3:1) leads to very efficient incorporation deuterium at the ortho ‐positions adjacent phenyl ring (overall Φ =0.73±0.07), along with minor naphthalene positions 5 and 8. These finding are explained by excited state intramolecular proton transfer (ESIPT) from phenolic OH group corresponding carbon atoms, main pathway giving rise quinone methide (QM) 7 , which has been characterized LFP τ ≈20 ns; 460 nm). The ESIPT reaction...

Seamless integration of functional nanomaterials on paper can boost the functionality paper-based flexible sensors and electronics. In this paper, we report systematic study a low-cost hydrothermal process for growing zinc oxide nanowires (ZnO NWs) cellulose substrates. To control competition between homogeneous heterogeneous nucleation obtain ZnO NWs with superior morphology high growth efficiency, tune critical parameters including temperature, assistant chemicals, seeding layer. We...

The first chemo-, regio-, and enantioselective rhodium-catalyzed addition of oximes to allenes is reported. Using a Rh(i)/Josiphos catalyst system under mild conditions, the construction allylic C-N bonds instead C-O was achieved. This method permits atom-economic synthesis branched nitrones in good quantitative yields with excellent enantioselectivities.

Paper-based physical sensors represent an emerging research direction in the field of flexible sensors, which offers a low-cost alternative to current silicon-based sensors. The ultralow cost and excellent biodegradability paper substrates contribute major advantages paper-based To enhance sensor performance, variety functional nanomaterials have been utilized for developing among zinc oxide (ZnO) nanostructures (e.g. nanoparticles, nanowires, nanotrees) are popular choices because their...

A series of five benzannelated derivatives 2-phenylphenol were prepared, and their photochemistry was investigated. Two these (3-phenyl-2-naphthol, 10, 1-phenyl-2-naphthol, 11) photoinert. For 2-(1-naphthyl)phenol (12) 1-(1-naphthyl)-2-naphthol (13), ESPT took place to either the 2'-position or 7'-position naphthalene ring give quinone methides (QMs) that underwent reverse proton transfer (RPT) electrocyclic closure dihydrobenzoxanthenes. The intermediate QMs for 12 13 detected characterized...

5-(2-Methoxy-1-naphthyl)- and 5-[2-(methoxymethyl)-1-naphthyl]-11H-benzo[b]fluorene were synthesized by treatment of the corresponding benzannulated enediynes with potassium tert-butoxide in refluxing toluene to give enyne-allenes for subsequent Schmittel cascade cyclization reactions. The structures these two 5-(1-naphthyl)-11H-benzo[b]fluorenes could be regarded as 2,2'-disubstituted 1,1'-binaphthyls newly constructed benzofluorenyl group serving a naphthyl moiety.

A Gram-positive, facultatively anaerobic, catalase-negative, fructose-dependent strain (W13T) was isolated from the gut of honeybee (Apis mellifera). Phylogenetic analysis based on 16S rRNA gene sequencing indicated that W13T represents a distinct line descent within genus Fructobacillus, with closest neighbours being Fructobacillus broussonetiae BCRC 81240T (98.9 % sequence similarity) and durionis DSM 19113T (96.8 similarity). Comparative additional phylogenetic markers rpoC recA confirmed...

A C56H40 hydrocarbon possessing a 54-carbon framework represented on the surface of C60 was synthesized by solution-phase chemistry. The structure this has 30-carbon core, which can be regarded as partially hydrogenated [5,5]circulene, C30H12 semibuckminsterfullerene, with only one carbon−carbon bonds remaining unconnected. central core is fused two indeno groups and bears phenyl methyl substituents.

This paper describes a new type of paper-based piezoelectric touch pads integrating zinc oxide nanowires (ZnO-NWs), as user interfaces in electronics. The functionality the is enabled by property ZnO-NWs grown on using simple hydrothermal method. A piece ZnO-NW with two screen-printed silver electrodes forms button, and touch-induced electric charges from button converted into voltage signal charge amplifier circuit. pad consisting an array buttons can be readily integrated electronic...