Nano-Cu Derived from a Copper Nitride Precatalyst for Reductive Coupling of Nitroaromatics to Azo Compounds.

The study of structural reconstruction is vital for the understanding of the real active sites in heterogeneous catalysis and guiding the improved catalyst design. Herein, we applied a copper nitride precatalyst in the nitroarene reductive coupling reaction and made a systematic investigation on the dynamic structural evolution behaviors and catalytic performance. This CuN precatalyst undergoes a rapid phase transition to nanostructured Cu with rich defective sites, which act as the actual catalytic sites for the coupling process.

Modeling Bacterial Flagellar Motor With New Structure Information: Rotational Dynamics of Two Interacting Protein Nano-Rings.

In this article, we develop a mathematical model for the rotary bacterial flagellar motor (BFM) based on the recently discovered structure of the stator complex (MotAMotB). The structure suggested that the stator also rotates. The BFM is modeled as two rotating nano-rings that interact with each other.

A new butenolide with antifungal activity from solid co-cultivation of and .

A new antifungal butenolide irperide () along with five known compounds were isolated from the co-culture of endophyte and pathogenic . The structure of , including the absolute configuration, was elucidated by analysis of NMR, HR-ESI-MS data and ECD spectra. Compounds , and exhibited significant antifungal activity against , with MIC values of 1, 2 and 1 μg/mL, respectively.

Phage-based technologies for highly sensitive luminescent detection of foodborne pathogens and microbial toxins: A review.

Foodborne pathogens and microbial toxins are the main causes of foodborne illness. However, trace pathogens and toxins in foods are difficult to detect. Thus, techniques for their rapid and sensitive identification and quantification are urgently needed.

[Effect of early enteral immune nutrition on immune function of intestine in mice with severe burn].

Objective: To investigate the effects of early enteral nutrition supplemented with immune nutrient on intestine immune function in mice with severe burn.

Methods: Twenty-four BALB/c mice were inflicted with 20% TBSA full-thickness scald, then they were randomly divided into EN(with oral administration of common enteral nutrition after 2 hours) and EIN (with oral administration of common enteral nutrition and glutamine, arginine after 2 hours) groups. Another 10 mice were used as the normal control (NC) group.

Effects of glutamine added to enteral nutrition on Peyer's patch apoptosis in severely burned mice.

Background And Aims: This study aimed to investigate the influence of enteral glutamine (GLN) supplementation on Peyer's patch apoptosis in severely burned mice.

Methods: Thirty-four mice were randomly assigned to a normal group (n=10), an EN group (n=12) and an EN supplemented with GLN (EN+GLN) group (n=12) and the mice in the EN and EN+GLN groups received a full-thickness scald burn over 20% total body surface area (TBSA) on the back. The burned mice then were fed orally with a common EN or an isonitrogenous and isocaloric EN supplemented with GLN for 7 days.

Effects of early enteral nutrition supplemented with arginine on intestinal mucosal immunity in severely burned mice.

Background: To investigate the effects of early enteral nutrition (EN) supplemented with Arginine (Arg) on intestinal mucosal immunity in severely burned mice.

Methods: Forty-four mice were randomly assigned into four groups: a sham injury+EN group (n=10), a sham injury+EN+Arg group (n=10), a burn+EN group (n=12), and a burn+EN+Arg group (n=12) and the mice in two experimental groups received a 20% total body surface area (TBSA), full-thickness scald burn on the back. Then, the burned mice were given a 175 kcal/kg body wt/day of conventional enteral nutrition or an isonitrogenous and isocaloric enteral nutrition supplemented with Arg by gastric gavage for 7 days.

The influence of Peyer's patch apoptosis on intestinal mucosal immunity in burned mice.

The aim of this study was to investigate the influence of apoptosis on Peyer's patches and the intestinal immunoglobulin A (IgA) response in burned mice. Sixty male Balb/c mice were randomly assigned into the sham-burn (control) group (n=30) and the burn group (n=30). The mice in the burn group received a full-thickness scald burn over 20% of the total body surface area (TBSA), on the back.

Effects of enteral nutrition supplemented with glutamine on intestinal mucosal immunity in burned mice.

Objective: The aim of this study was to investigate the effects of enteral nutrition (EN) supplemented with glutamine (GLN) on Peyer's patches and intestinal immunoglobulin A (IgA) response in burned mice.

Methods: Thirty-four mice were randomly assigned to a normal control group (n = 10), an EN group (n = 12), and an EN supplemented with GLN (EN + GLN) group (n = 12) and mice in the EN and EN + GLN groups received a 20% total body surface area, full-thickness scald burn on the back. Then the burned mice were fed with conventional EN or EN + GLN for 7 d.