Results 121 to 130 of about 120,160 (335)

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

Tunable Sensitivity in PAN/CNF/PEDOT:PSS Nanofiber‐Based Piezocapacitive Sensors

Advanced Materials Interfaces, EarlyView.
This study demonstrates highly tunable, flexible pressure sensors made from a nanofibrous composite of polyacrylonitrile (PAN) and carbon nanofibers (CNF) or poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). By adjusting filler type, concentration, and mat thickness, the sensors achieve large sensitivity improvements, stable ...
Alireza Gholamhoseini, Sheyda Mirjalali, Aisan Nouri, David Payne, Noushin Nasiri   +4 more
wiley   +1 more source

Biochemical characterization of two Brassica oleracea nitrile-specifier proteins

Frontiers in Plant Science
Brassica oleracea vegetables (e. g. cabbages) form bioactive isothiocyanates (ITCs) from glucosinolate (GLS) hydrolysis. However, enzymatic activity, acidic pH (below pH 5), and ferrous ions (Fe2+) can promote nitrile release, reducing the ITC amount. In
Kudzai Gracious Mbudu, Kudzai Gracious Mbudu, Katja Witzel, Ute Wittstock, Frederik Börnke, Frederik Börnke, Franziska Sabine Hanschen, Franziska Sabine Hanschen   +7 more
doaj   +1 more source

Conversion of Alcohols into Amides Using Alumina-Methanesulfonic Acid (AMA) in Nitrile Solvents [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1999
The reaction of tertiary, secondary and benzylic alcohols with different nitriles in the presence of alumina-methanesulfonic acid (AMA) as a new reagent affords the corresponding amides in good yields (Table 1, 2).
Hashem Sharghi, Khodabakhsh Niknam
doaj  

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Momentum Transfer Rate Constants for Collision of Cl-with Trans-Dichloroethylene and Para-Difluorobenzene [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1999
A classical theory is developed which calculates the momentum transfer rate constant between an ion and a non-polar molecule. The model takes into consideration the effect of diffraction outside the capture limit on the rate constants. The theory is used
Sadreddin Hosseini, Timothy Su
doaj  

Electrochemistry of 2,2'-Bipyridine Complexes of Cobalt in the Presence of Acrylonitrile [PDF]

, 1978
The previously claimed (1) catalysis of the electroreduction of acrylonitrile by means of a complex of Co(I) and 2,2′‐bipyridine is shown to be erroneous. The “catalytic currents” result instead from the two‐electron reduction of a mixed complex of Co(I)
Anson, Fred C., Margel, Shlomo, Smith, Wayne   +2 more
core  

Soft Robotic Excretory Care Simulator for Nursing Education: Functional and Perceptual Biomimetics Approach

Advanced Robotics Research, EarlyView.
A soft robotic simulator is developed to replicate the digital removal of feces (DRF), a sensitive yet essential nursing procedure. Integrating soft actuators, sensors, and a realistic rectal model, the simulator balances functional fidelity with perceptual realism. Engineering evaluations and nurse feedback confirm its potential to enhance training in
Shoko Miyagawa, Sota Suzuki, Shizuka Watanabe, Zebing Mao, Young Ah Seong, Toshinori Fujie, Tatsuhiro Horii, Kenjiro Tadakuma, Koichi Suzumori, Hiroyuki Nabae, Shingo Maeda   +10 more
wiley   +1 more source

Dynamic dielectric properties and the γ transition of bromine doped polyacrylonitrile

eXPRESS Polymer Letters, 2007
Based on monitoring the γ process (the lowest temperature-relaxation) in polyacrylonitrile (PAN) by dynamic dielectric spectroscopy, new evidence for the formation of a charge transfer complex between bromine dopants and nitrile groups is presented.
doaj   +1 more source

Multiple States of Nitrile Hydratase from Rhodococcus equi TG328-2: Structural and Mechanistic Insights from Electron Paramagnetic Resonance and Density Functional Theory Studies [PDF]

, 2017
Iron-type nitrile hydratases (NHases) contain an Fe(III) ion coordinated in a characteristic “claw setting” by an axial cysteine thiolate, two equatorial peptide nitrogens, the sulfur atoms of equatorial cysteine-sulfenic and cysteine-sulfinic acids, and
Stein, Natalia, Gumataotao, Natalie, Hajnas, Natalia, Wu, Rui, Wasantha Lankathilaka, Karunagala Pathiranage, Bornscheuer, Uwe, Liu, Dali, Fiedler, Adam T., Holz, Richard C., Bennett, Brian   +9 more
core   +1 more source