Assaying D-Amino Acid in Japanese Sake Using L-Amino Acid Derivatizing Agent.

The D-amino acids of D-alanine, D-glutamic acid, and D-aspartic acid increase tasting evaluation scores of Sake, a Japanese traditional alcohol beverage. Sake is brewed using seed mash for growth of brewing yeast without growth of contaminating microorganisms. Kimoto is brewed using lactic acid bacteria growth to decrease pH.

Molecular elastic crystals exhibiting slow magnetic relaxations.

We report an elastic crystal of a copper(II) porphyrinato complex that exhibits slow magnetic relaxations and is a promising candidate for an external-force-responsive spin qubit.

Engineering of an electrically charged hydrogel implanted into a traumatic brain injury model for stepwise neuronal tissue reconstruction.

Neural regeneration is extremely difficult to achieve. In traumatic brain injuries, the loss of brain parenchyma volume hinders neural regeneration. In this study, neuronal tissue engineering was performed by using electrically charged hydrogels composed of cationic and anionic monomers in a 1:1 ratio (C1A1 hydrogel), which served as an effective scaffold for the attachment of neural stem cells (NSCs).

Force-triggered rapid microstructure growth on hydrogel surface for on-demand functions.

Living organisms share the ability to grow various microstructures on their surface to achieve functions. Here we present a force stamp method to grow microstructures on the surface of hydrogels based on a force-triggered polymerisation mechanism of double-network hydrogels. This method allows fast spatial modulation of the morphology and chemistry of the hydrogel surface within seconds for on-demand functions.

[Mediastinal Growing Teratoma Syndrome during Chemotherapy, Presenting as a Huge and Inoperable Tumor].

A 22-year-old male was diagnosed with a metastatic nonseminomatous germ cell tumor in the mediastinum with an elevated serum alpha-fetoprotein(AFP)concentration. Histopathological findings following percutaneous biopsy revealed the presence of a mature teratoma. Bleomycin, etoposide, and cisplatin(BEP)chemotherapy resulted decreased his serum AFP.