Interaction Between EPTAC-Modified Gelatin and Surfactants: Surface Tension and Conductivity Methods

<div><p>Gelatin, one of the most valuable macromolecules and by-products of the leather industry, was modified by the addition of 2,3-epoxypropyl trimethyl ammonium chloride (EPTAC). The interaction between EPTAC-modified gelatin (EPTAC-gelatin) and cetyltrimethyl ammonium bromide (CTAB) or sodium dodecyl benzene sulfonate (SDBS) was studied by surface tension and conductivity methods. We found that EPTAC-gelatin adsorbed more CTAB than SDBS but the surface-tension-reducing capabilities of EPTAC-gelatin–CTAB and EPTAC-gelatin–SDBS were almost equal. The micellization process of CTAB was enthalpy-driven but that of SDBS was entropy-driven at low concentrations of EPTAC-gelatin and enthalpy-driven at high concentrations. Based on the analysis of EPTAC-gelatin–CTAB (SDBS) solution properties, interaction models of EPTAC-gelatin–CTAB (SDBS) were proposed.</p> </div

Additional file 1 of Enhanced meningeal lymphatic drainage ameliorates lipopolysaccharide-induced brain injury in aged mice

Additional file 1: Table. The number of animals used for multiple study parameters. Figure S1. Open field was performed to analyze the locomotor activity at day 3 after LPS injection. Figure S2. Intracisternal injection of the AAV1-eGFP virus into the cisterna magna did not yield any observable effect on liver lymphatic lymphangiogenesis. Figure S3. Schematic diagram of lymph fluid from the head entering the blood circulation

DataSheet_1_Exogenous BR delayed peach fruit softening by inhibiting pectin degradation enzyme genes.docx

Peach fruit deteriorates and senesces rapidly when stored at room temperature. Brassinosteroids (BRs) play an important role in regulating plant growth and development and maintaining fruit quality. However, little information is available on the effect of BRs on the senescence of harvested peach fruit. In this study, different concentrations of BR were used to treat ‘Hongniang’ peach fruit, and the results showed that 10 μM BR was the most beneficial concentration to delay the senescence of peach fruits. BR treatment delayed the decrease of fruit firmness, the release of ethylene, the increase in water-soluble pectin (WSP) and ionic-soluble pectin (ISP) content and the decrease in covalently bound pectin (CBP) content, inhibited the activities of pectin degradation enzymes, and inhibited the gene expression of PpPME1/3, PpPG, PpARF2, and PpGAL2/16. In addition, BR treatment also inhibited the expression of PpBES1-5/6. Cis-acting regulatory element analysis of pectin degradation enzyme promoters showed that many of them contained BES1 binding elements. All the above results showed that BR treatment had a positive effect on delaying the senescence of peach fruit and prolonging its storage period.</p