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Measurement of antibacterial properties of foil‑backed electrospun nanofibers
Mary Ann Wagner‑Graham,Herbert Barndt,Mark Andrew Sunderland 한국의류학회 2019 Fashion and Textiles Vol.6 No.1
Current methodologies for evaluation of antibacterial properties of traditional textiles are not applicable to foil-backed, poorly-absorbent electrospun nanofiber materials, since existing test methods require absorbent fabrics. Since electrospun nanofibers are adhered to the foil backing only by electrostatic interactions, methods used to evaluate antibacterial properties of surfaces cannot be used because these protocols cause the nanofibers to lift from the foil backing. Therefore, a novel method for measurement of the antibacterial properties of electrospun metallic foil-backed nanofiber materials was developed. This method indicated that acetate-based nanofibers manufactured to contain 5 to 30 weight percent of cold-pressed hemp seed oil or full-spectrum hemp extract inhibited the growth of Staphylococcus aureus in a dose-dependent manner, from 85.3% (SEM = 2.2) inhibition to 99.3% (SEM = 0.15) inhibition, respectively. This testing method represents an advanced manufacturing prototype procedure for assessment of antibacterial properties of novel electrospun, metallic foil-backed nanofiber materials.
Report of an inferior rectal nerve variant arising from the S3 ventral ramus
Graham Dupont,Joe Iwanaga,Rod J. Oskouian,R. Shane Tubbs 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.1
In surgical approaches to the perineum in general and anal region specifically, considering the possible variations of the inferior rectal nerve is important for the surgeon. Normally, the inferior rectal nerve originates as a branch of the pudendal nerve. However, during routine dissection, a variant of the inferior rectal nerve was found where it arose directly from the third sacral nerve ventral ramus (S3). Many cases have described the inferior rectal nerve arising independently from the sacral plexus, most commonly from the fourth sacral nerve root (S4); however, few cases have reported the inferior rectal nerve arising from S3. Herein, we describe a variant of the inferior rectal nerve in which the nerve arises independently from the sacral plexus.