Short-Term Nutritional Support Improves The Preoperative Nutritional Status of Infants With Non-Restrictive Ventricular Septal Defect: A Prospective Controlled Study.

Objective: To investigate the effect of short-term nutritional support on improving preoperative nutritional status of infants with non-restrictive ventricular septal defect.

Methods: A prospective randomized controlled study was conducted from June 2021 to December 2021 at a provincial children's hospital in China. The difference of nutritional status between the intervention group and the control group after short-term nutritional support was compared.

Effect of chitosan grafting oxidized bacterial cellulose on dispersion stability and modulability of biodegradable films.

Bacterial cellulose (BC) is a kind of high-purity cellulose biomaterial with a unique three-dimensional structure. To improve the mechanical properties and reinforce the BC composite films, in this study, we provide in detail a simple, fast, and environmentally-friendly method to prepare a biodegradable composite film using chitosan (CS) with different molecular weights and BC with excellent dispersion. The water moisture content (MC), water solubility (WS), contact angle (CA), mechanical properties and barrier properties were measured to assess the effect of CSn-OBC composite films.