The Role of Life Stages in the Sensitivity of to Nanoplastics: A Case Study with Poly(Methyl)Methacrylate (PMMA).

The presence of plastic particles in oceans has been recognized as a major environmental concern. The decrease in particle size increases their ability to directly interact with biota, with particles in the nanometer size range (nanoplastics-NPs) displaying a higher ability to penetrate biological membranes, which increases with the decrease in particle size. This study aimed to evaluate the role of life stages in the effects of poly(methyl)methacrylate (PMMA) NPs on the polychaete , a key species in the marine food web and nutrient cycle.

Optimized Synthesis of Poly(Lactic Acid) Nanoparticles for the Encapsulation of Flutamide.

Biopolymeric nanoparticles (NPs) have gained significant attention in several areas as an alternative to synthetic polymeric NPs due to growing environmental and immunological concerns. Among the most promising biopolymers is poly(lactic acid) (PLA), with a reported high degree of biocompatibility and biodegradability. In this work, PLA NPs were synthesized according to a controlled gelation process using a combination of single-emulsion and nanoprecipitation methods.

Efficiency of Phage φ6 for Biocontrol of pv. : An in Vitro Preliminary Study.

is a plant-associated bacterial species that has been divided into more than 60 pathovars, with the pv. being the main causative agent of diseases in a wide variety of fruit trees. The most common treatments for biocontrol of pv.

Vacuum-assisted venous drainage in cardiopulmonary bypass and need of blood transfusion: experience of service.

Objective: To report the experience with the vacuum-assisted venous drainage (VAVD) technique in cardiopulmonary bypass (CPBP) and blood transfusion need.

Methods: A retrospective study was made about data from 111 patients who were operated, using VAVD between October 2006 and February 2008, at the Esperança Hospital, Recife, Pernambuco. The necessity of blood transfusion was verified on the single group of patients who underwent VAVD, comparing with sex, age and weigh, before the beginning of the CPBP and during the surgery, using Chi-square test and t-student test.