Formulation of nanopesticide with graphene oxide as the nanocarrier of pyrethroid pesticide and its application in spider mite control.

Nanopesticides with controlled release can achieve more effective utilization of pesticides. Here, to enhance the adsorption of pesticides onto the target organisms, the formulation of pesticides with temperature-responsive release was proposed by combing graphene oxide (GO) and existing pyrethroid pesticides (cyhalothrin, bifenthrin and fenpropathrin). Pesticides were loaded onto GO nanosheets as a carrier a simple physisorption process, and the GO-pesticide nanocomposites exhibited temperature-responsive release and excellent storage stability, which are of vital importance to the practical application.

Nanopesticide Formulation from Pyraclostrobin and Graphene Oxide as a Nanocarrier and Application in Controlling Plant Fungal Pathogens.

Efficient and environment-friendly nanopesticide delivery systems are critical for the sustainable development of agriculture. In this study, a graphene oxide nanocomposite was developed for pesticide delivery and plant protection with pyraclostrobin as the model pesticide. First, graphene oxide-pyraclostrobin nanocomposite was prepared through fast adsorption of pyraclostrobin onto graphene oxide with a maximum loading of 87.

Effect of vitamin D3 on hyperplasia of mammary glands in experimental rats.

Background: 1,25(OH)2D3/vitamin D3 receptor (VD3/VDR) signaling pathway can inhibit the occurrence of breast cancer in many ways. We used vitamin D3 to interfere with Hyperplasia of mammary glands (HMG) model rats, and to explore the intervention effect of vitamin D3 on HMG.

Methods: We divided 42 female rats into six groups randomly: blank control group, hyperplasia model group, negative control group, and vitamin D3 (VD3) groups of low-dose (LVD, 5 µg/kg), medium-dose (MVD, 10 µg/kg), and high-dose (HVD, 20 µg/kg).

Synergistic Antifungal Activity of Graphene Oxide and Fungicides against Fusarium Head Blight In Vitro and In Vivo.

Plant pathogens constantly develop resistance to antimicrobial agents, and this poses great challenges to plant protection. Therefore, there is a pressing need to search for new antimicrobials. The combined use of antimicrobial agents with different antifungal mechanisms has been recognized as a promising approach to manage plant diseases.

Preparation of Chitosan Stacking Membranes for Adsorption of Copper Ions.

Chitosan (CS) stacking mats with excellent performance for adsorption of copper ions (Cu(II)) in wastewater were fabricated by alternating electrospinning/electrospraying. The hierarchical structure of the stacking membranes was designed by CS micro-hemispheres sandwiched between CS fibers. The CS stack membranes prepared by the electrospinning technology could effectively increase the specific surface area, and thus, facilitate the adsorption of copper ions.

TiO-Doped Chitosan Microspheres Supported on Cellulose Acetate Fibers for Adsorption and Photocatalytic Degradation of Methyl Orange.

Chitosan/cellulose acetate (CS/CA) used as a biopolymer systema, with the addition of TiO as photocatalyst (C-T/CA) were fabricated by alternating electrospinning/electrospraying technology. The uniform dispersion of TiO and its recovery after the removal of methyl orange (MO) was achieved by incorporating TiO in CS electrosprayed hemispheres. The effects of pH values, contact time, and the amount of TiO on adsorption and photocatalytic degradation for MO of the C-T/CA were investigated in detail.