Mucus and Biofilm Penetrating Nanoplatform as an Ultrasound-Induced Free Radical Initiator for Targeted Treatment of Helicobacter pylori Infection.

Helicobacter pylori (H. pylori) infection is closely associated with the development of various gastric diseases. The effectiveness of current clinical antibiotic therapy is hampered by the rise of drug-resistant strains and the formation of H.

The Mechanisms Responsible for N Deficiency in Well-Watered Wheat Under Elevated CO.

Elevated CO concentration [e(CO)] often promotes plant growth with a decrease in tissue N concentration. In this study, three experiments, two under hydroponic and one in well-watered soil, including various levels or patterns of CO, humidity, and N supply were conducted on wheat ( L.) to explore the mechanisms of e[CO]-induced N deficiency (ECIND).

Synthesis, characterization and working mechanism of a novel sustained-release-type fluid loss additive for seawater cement slurry.

Synthetic polymer fluid loss additive (FLA), an important type of admixture, was broadly applied in modern well cementation. However, the filter loss volume and fluidity of cement pastes containing polymer-FLA would deteriorate remarkably when sea water was used in mixing slurries instead of fresh water. In this study, a novel sustained-release-type fluid loss additive(S-FLA) was synthesized by means of anion-exchange intercalation reaction between an anionic type-copolymer and a calcium/aluminum type-Layered Double Hydroxide (Ca/Al-LDH).

[Effect of different surface treatments on bonding strength of composite resin to commercially pure titanium].

Objective: To investigate the effectiveness of different surface treatments that could promote the bond strength of composite resin to commercially pure titanium.

Methods: The 24 casting pure titanium specimen were randomly divided into four groups: Smooth group, rough group, acid etching smooth group, acid etching rough group. Each group had six specimens.