AMOVA analysis of differences in diversity of endophytic bacteria in different host plant species.

AMOVA analysis of differences in diversity of endophytic bacteria in different host plant species.</p

Photothermal-Assisted Optical Stretching of Gold Nanoparticles

The synergy of photothermal energy and optical forces generated by tightly focused laser beams can be used to transform the shape of gold nanoparticles. Here, the combination of these two effects is demonstrated to be an effective way of elongating gold nanoparticles (Au NPs), massively tuning their plasmonic properties. The photothermal effect of the laser increases the temperature of Au NPs above the melting point, and optical forces deform the molten Au NPs. As a result, the shape of Au NPs transforms from nanospheres into nanorods or dimers, depending on the power and time of irradiation as well as the surface energy of the substrate. This process is reversible by using high laser power to transform nanorods back to nanospheres due to capillary dewetting. Such light-induced transformations of nanostructures not only provide a facile way to tune plasmon resonances but also shed light on how the synergistic effect of photothermal energy and optical forces works on plasmonic nanoparticles

AMOVA analysis of differences in diversity of endophytic bacteria in different.

<p>sampling months.</p

Variation of relative abundances of dominant bacterial groups with the host plant species and sampling months.

<p>Relative abundances of the dominant phyla in the leaf endophytic bacterial communities from different host plants (A); Relative abundances of the dominant bacterial genera across different host plant species (B) and across different sampling months (C).</p

LEfSe analysis identification of biomarker microbes for endophytic bacterial communities for different months of sample collection.

<p>LEfSe analysis identification of biomarker microbes for endophytic bacterial communities for different months of sample collection.</p

LEfSe analysis identification of biomarker microbes for endophytic bacterial communities for different host plant species.

<p>LEfSe analysis identification of biomarker microbes for endophytic bacterial communities for different host plant species.</p

Chemoplasmonic Oscillation: A Chemomechanical Energy Transducer

Chemical oscillations and waves are nonequilibrium systems that sustain a steady state with constant energy input of reactants like the life systems. Most of these oscillations are theoretically and fundamentally exploited but how to mimic the energy convolution of biological systems remains elusive. Here we develop a chemomechanical energy transducer (CoMET) based on gold nanoparticles (Au NPs) and thermo-/pH-responsive polymers, which transforms the trapped chemical energy into a tangible mechanical oscillation probed by extinction spectra. Our results show that the mechanical movement of Au NPs characterized by the chemoplasmonic oscillation follows exactly the pH oscillation and can be tuned by changing the temperature and the injection rate of the reductants. It is revealed that the energy input of the redox potentials which later converts to the collective (dis-)aggregation of Au NPs is the main driving force of the chemoplasmonic oscillation. The energy efficiency (∼34%) and force generation (∼28 pN) of this CoMET outperforms many biochemomechanical systems, which offers an alternative means to power the nanomechanics and nanomachines

Chemoplasmonic Oscillation: A Chemomechanical Energy Transducer

Chemical oscillations and waves are nonequilibrium systems that sustain a steady state with constant energy input of reactants like the life systems. Most of these oscillations are theoretically and fundamentally exploited but how to mimic the energy convolution of biological systems remains elusive. Here we develop a chemomechanical energy transducer (CoMET) based on gold nanoparticles (Au NPs) and thermo-/pH-responsive polymers, which transforms the trapped chemical energy into a tangible mechanical oscillation probed by extinction spectra. Our results show that the mechanical movement of Au NPs characterized by the chemoplasmonic oscillation follows exactly the pH oscillation and can be tuned by changing the temperature and the injection rate of the reductants. It is revealed that the energy input of the redox potentials which later converts to the collective (dis-)aggregation of Au NPs is the main driving force of the chemoplasmonic oscillation. The energy efficiency (∼34%) and force generation (∼28 pN) of this CoMET outperforms many biochemomechanical systems, which offers an alternative means to power the nanomechanics and nanomachines

Chemoplasmonic Oscillation: A Chemomechanical Energy Transducer

Chemical oscillations and waves are nonequilibrium systems that sustain a steady state with constant energy input of reactants like the life systems. Most of these oscillations are theoretically and fundamentally exploited but how to mimic the energy convolution of biological systems remains elusive. Here we develop a chemomechanical energy transducer (CoMET) based on gold nanoparticles (Au NPs) and thermo-/pH-responsive polymers, which transforms the trapped chemical energy into a tangible mechanical oscillation probed by extinction spectra. Our results show that the mechanical movement of Au NPs characterized by the chemoplasmonic oscillation follows exactly the pH oscillation and can be tuned by changing the temperature and the injection rate of the reductants. It is revealed that the energy input of the redox potentials which later converts to the collective (dis-)aggregation of Au NPs is the main driving force of the chemoplasmonic oscillation. The energy efficiency (∼34%) and force generation (∼28 pN) of this CoMET outperforms many biochemomechanical systems, which offers an alternative means to power the nanomechanics and nanomachines

Adsorption of Li(I) Ions through New High-Performance Electrospun PAN/Kaolin Nanofibers: A Combined Experimental and Theoretical Calculation

Lithium (Li), as a strategic energy source in the 21st century, has a wide range of application prospects. As the demand for lithium resources grows, refining lithium resources becomes increasingly important. A novel method was proposed to directly prepare polyacrylonitrile–LiCl·2Al­(OH)3·nH2O (PAN–Li/Al-LDH) composites from kaolin with simple operation and low cost, showing effective adsorption performance for the removal of Li­(I) from brine in a salt lake. Moreover, several techniques have been applied for characterization, including X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, and the Brunauer–Emmett–Teller method. Batch adsorption experiments were conducted to investigate the adsorption behaviors of PAN–Li/Al-LDHs for Li­(I) in salt-lake brines, indicating that the adsorption equilibrium could reach within 2 h, and the adsorption kinetics for Li­(I) conforms to the pseudo-second-order model. The adsorption isotherms are consistent with those obtained by the Langmuir model, with a maximum adsorption capacity of 5.2 mg/g. The competitive experimental results indicated that PAN–Li/Al-LDHs exhibited specific selectivity for Li­(I) in the mixed solutions of Mg­(II), Na­(I), K­(I), and Ca­(II) with the selectivity coefficients of 9.57, 19.38, 43.40, and 33.05, respectively. Moreover, the PAN–Li/Al-LDHs could be reused 60 times with basically unchanged adsorption capacity, showing excellent stability and regeneration ability. Therefore, PAN–Li/Al-LDHs would have promising industrial application potential for the adsorption and recovery of Li­(I) from salt-lake brines