Biodegradable Mineral Plastics.

Mineral plastics are a promising class of bio-inspired materials that offer exceptional properties, like self-heal ability, stretchability in the hydrogel state, and high hardness, toughness, transparency, and non-flammability in the dry state along with reversible transformation into the hydrogel by addition of water. This enables easy reshape-ability and recycling like the solubility in mild acids to subsequently form mineral plastics again by base addition. However, current mineral plastics rely on petrochemistry, are hardly biodegradable, and thus persistent in nature.

Fungal perianal abscess as the initial presentation of disseminated coccidioidomycosis.

Coccidioides is a dimorphic fungus that can cause various clinical presentations, mainly pulmonary, skin, musculoskeletal, and in the central nervous system; most reports are in the southwestern area of the USA. We present a case of a young male with a perianal abscess in the absence of any pulmonary or constitutional symptoms. Perianal abscess as initial manifestation is a novel presentation of coccidioidomycosis in the literature.