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SERS nanoprobes for bio-application
Springer Science and Business Media LLC - Tập 9 - Trang 428-441 - 2015
The ability to tune the size, shape, composition and surface properties impart nanoparticles with the desired functions for bio-application. This article highlights some of the recent examples in the exploration of metal (e.g., gold and silver) nanoparticles, especially those with magnetic properties and bio-conjugated structures, as theranostic nanoprobes. Such nanoprobes exhibit tunable optical,...... hiện toàn bộ
Construction of nitrogen-doped carbon cladding LiMn2O4 film electrode with enhanced stability for electrochemically selective extraction of lithium ions
Springer Science and Business Media LLC - Tập 17 - Trang 2050-2060 - 2023
Reducing the dissolution of Mn from LiMn2O4 (LMO) and enhancing the stability of film electrodes are critical and challenging for Li+ ions selective extraction via electrochemically switched ion exchange technology. In this work, we prepared a nitrogen-doped carbon cladding LMO (C-N@LMO) by polymerization of polypyrrole and high-temperature annealing in the N2 gas to achieve the above purpose. The...... hiện toàn bộ
Preconcentration of trace elements by adsorption onto a niobium wire for electrothermal atomization atomic absorption spectrometry with a tungsten tube atomizer
Springer Science and Business Media LLC - Tập 6 - Trang 432-435 - 2012
In the present work, a new preconcentration method of trace elements by adsorption onto a niobium wire has been developed for electrothermal atomization atomic absorption spectrometry (ETAAS) with a tungsten tube atomizer. Detection limits (pg·mL−1) by this method combined with ETAAS were 45 for bismuth, 7.0 for cadmium, 20 for copper, 1.3 for gold, 36 for lead, 65 for manganese, 9.5 for rhodium a...... hiện toàn bộ
Purification and concentration of gluconic acid from an integrated fermentation and membrane process using response surface optimized conditions
Springer Science and Business Media LLC - Tập 13 - Trang 152-163 - 2018
A response surface method was used to optimize the purification and concentration of gluconic acid from fermentation broth using an integrated membrane system. Gluconobacter oxydans was used for the bioconversion of the glucose in sugarcane juice to gluconic acid (concentration 45 g∙L–1) with a yield of 0.9 g∙g–1. The optimum operating conditions, such as trans-membrane pressure (TMP), pH, cross-f...... hiện toàn bộ
NiCo2O4@quinone-rich N-C core-shell nanowires as composite electrode for electric double layer capacitor
Springer Science and Business Media LLC - Tập 17 - Trang 373-386 - 2023
The bind-free carbon cloth-supported electrodes hold the promises for high-performance electrochemical capacitors with high specific capacitance and good cyclic stability. Considering the close connection between their performance and the amount of carbon material loaded on the electrodes, in this work, NiCo2O4 nanowires were firstly grown on the substrate of active carbon cloth to provide the nec...... hiện toàn bộ
H2 production by ethanol decomposition with a gliding arc discharge plasma reactor
Springer Science and Business Media LLC - Tập 7 - Trang 145-153 - 2013
A gliding arc discharge (GRD) reactor was used to decompose ethanol into primarily H2 and CO with small amounts of CH4, C2H2, C2H4, and C2H6. The ethanol concentration, electrode gap, input voltage and Ar flow rate all affected the conversion of ethanol with results ranging from 40.7% to 58.0%. Interestingly, for all experimental conditions the SH2/SCO selectivity ratio was quite stable at around ...... hiện toàn bộ
Simulating multiphase flow in a two-stage pusher centrifuge using computational fluid dynamics
Springer Science and Business Media LLC - Tập 6 - Trang 329-338 - 2012
The design of two-stage pusher centrifuges have developed rapidly, but a good understanding of the theory behind their practice is a long-standing problem. To better understand centrifugal filter processes, the computational fluid dynamics (CFD) software program FLUENT has been used to model the three-dimensional geometry and to simulate multiphase flows based on Euler-Euler, moving mesh, dynamic ...... hiện toàn bộ
Bamboo-like N-doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of syngas with potential-independent CO/H2 ratios
Springer Science and Business Media LLC - Tập 16 - Trang 498-510 - 2021
The electrochemical conversion of CO2-H2O into CO-H2 using renewable energy is a promising technique for clean syngas production. Low-cost electrocatalysts to produce tunable syngas with a potential-independent CO/H2 ratio are highly desired. Herein, a series of N-doped carbon nanotubes encapsulating binary alloy nanoparticles (MxNi-NCNT, M= Fe, Co) were successfully fabricated through the co-pyro...... hiện toàn bộ
Crown ether-thiourea conjugates as ion transporters
Springer Science and Business Media LLC - Tập 16 - Trang 81-91 - 2021
Na+, Cl− and K+ are the most abundant electrolytes present in biological fluids that are essential to the regulation of pH homeostasis, membrane potential and cell volume in living organisms. Herein, we report synthetic crown ether-thiourea conjugates as a cation/anion symporter, which can transport both Na+ and Cl− across lipid bilayers with relatively high transport activity. Surprisingly, the i...... hiện toàn bộ
Special issue on “Fluorescent probes”
Springer Science and Business Media LLC - Tập 14 - Trang 1-3 - 2020
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