Transcriptomic Insights into Metabolism-Dependent Biosynthesis of Bacterial Nanocellulose.

Bacterial nanocellulose (BNC) is an attractive green-synthesized biomaterial for biomedical applications and various other applications. However, effective engineering of BNC production has been limited by our poor knowledge of the related metabolic processes. In contrast to the traditional perception that genome critically determines biosynthesis behaviors, here we discover that the glucose metabolism could also drastically affect the BNC synthesis in .

Genome Sequence of a Heavy Metal-Detoxifying Actinomycete, Microbacterium proteolyticum ustc.

A complete genome is presented for Microbacterium proteolyticum ustc, a member of the Gram-positive order of the phylum that is resistant to high concentrations of heavy metals and participates in metal detoxification. The genome consists of one plasmid and one chromosome.

Low-Power Red Laser Treatment for Anisometropic Myopia Control in Children: A Contralateral Comparison Study.

Background: There are some uncertainties about the effect of low-power red laser treatment on myopia control for anisometropic myopia in children. To evaluate the effect and safety of low-power red laser treatment on refractive development for anisometropic myopia in children, a contralateral comparison study was conducted.

Methods: The more myopic eye of child with anisometropic myopia was treated with low-power red laser treatment (LRL group), the other eye received no treatment other than the wearing of single-focus spectacles (SFS) (SFS Group).

Associations between anthropometric indicators and refraction in school-age children during the post-COVID-19 era.

Purpose: To explore the associations between anthropometric indicators and refraction in school-aged children in the post-COVID-19 era.

Methods: Data were collected from 25,644 children aged 7 to 12 years in 48 elementary schools in Tianjin. The comprehensive examination included height, weight, systolic blood pressure (SBP), diastolic blood pressure (DBP), refraction, and calculation of BMI, with a follow-up visit after 6 months.

Nitrogen-Containing Gas Sensing Properties of 2-D TiN and Its Derivative Nanosheets: Electronic Structures Insight.

In this work, the potentials of two-dimensional TiN and its derivative nanosheets TiNT(T=O, F, OH) for some harmful nitrogen-containing gas (NCG) adsorption and sensing applications have been unveiled based on the quantum-mechanical Density Functional Theory calculations. It is found that the interactions between pure TiN and NCGs (including NO, NO, and NH in this study) are very strong, in which NO and NO can even be dissociated, and this would poison the substrate of TiN monolayer and affect the stability of the sensing material. For the monolayer of TiNT(T=O, F, OH) that is terminated by functional groups on surface, the adsorption energies of NCGs are greatly reduced, and a large amount of charges are transferred to the functional group, which is beneficial to the reversibility of the sensing material.

Voltage-Modulated Structure Stress for Enhanced Electrochemcial Performances: The Case of μ-Sn in Sodium-Ion Batteries.

Alloy-type anodes in alkaline ion batteries have to face the challenges of huge volume change and giant structure strain/stress upon cycling. Here, reducing the structure stress for advanced performances by voltage regulation is demonstrated by using microsized Sn (μ-Sn) for sodium ion batteries as a model. Density functional theory and finite element analysis indicate that Sn/NaSn is the crucial phase transition highly responsible for inducing surface cracks, particle aggregations, and cell failures.

First-Principles Exploration of Hazardous Gas Molecule Adsorption on Pure and Modified AlN Nanoclusters.

In this work, we use the first-principles method to study in details the characteristics of the adsorption of hazardous NO, NO, CO, CO and SO gas molecules by pure and heteroatom (Ti, Si, Mn) modified AlN nanoclusters. It is found that the pure AlN cluster is not sensitive to CO. When NO, NO, CO, CO and SO are adsorbed on AlN cluster'stop.

Cobalt(II) Tetraaminophthalocyanine-modified Multiwall Carbon Nanotubes as an Efficient Sulfur Redox Catalyst for Lithium-Sulfur Batteries.

An efficient Li-S redox catalyst consisting of MWCNTs covalently modified by cobalt(II) tetraaminophthalocyanines (TaPcCo-MWCNTs) is developed. Effective lithium polysulfide (LiPS) capturing is enabled by the lithiophilic N-containing phthalocyanine rings and the sulfiphilic Co central atoms. This adsorption geometry utilizes the Co unoccupied d-orbitals as electron super-exchange highways.

Structural Evolution of AlN Nanoclusters and the Elemental Chemisorption Characteristics: Atomistic Insight.

A theoretical insight into the structural evolution of AlN atomic clusters and the chemisorption of several common alloying elements on alarge cluster has been performed in the framework of state-of-the-art density functional theory calculations. We report the findings that the longitudinal growth takes precedence during the early stage of structural evolution of small AlN clusters, when the longitudinal dimension becomes stable, the AlN cluster proceeds with cross-growth and blossoms into the large-size AlN. Upon the growth of clusters, the structures tend to become well-knit gradually.

Ab Initio Screening of Doped Mg(AlH) Systems for Conversion-Type Lithium Storage.

In this work, we have explored the potential applications of pure and various doped Mg(AlH) as Li-ion battery conversion electrode materials using density functional theory (DFT) calculations. Through the comparisons of the electrochemical specific capacity, the volume change, the average voltage, and the electronic bandgap, the Li-doped material is found to have a smaller bandgap and lower average voltage than the pure system. The theoretical specific capacity of the Li-doped material is 2547.