Antisolvent controls the shape and size of anisotropic lead halide perovskite nanocrystals.

Colloidal lead halide perovskite nanocrystals have potential for lighting applications due to their optical properties. Precise control of the nanocrystal dimensions and composition is a prerequisite for establishing practical applications. However, the rapid nature of their synthesis precludes a detailed understanding of the synthetic pathways, thereby limiting the optimisation.

Altered neural anticipation of reward and loss but not receipt in adolescents with obsessive-compulsive disorder.

Background: Obsessive-compulsive disorder (OCD) is characterized by persistent, unwanted thoughts and repetitive actions. Such repetitive thoughts and/or behaviors may be reinforced either by reducing anxiety or by avoiding a potential threat or harm, and thus may be rewarding to the individual. The possible involvement of the reward system in the symptomatology of OCD is supported by studies showing altered reward processing in reward-related regions, such as the ventral striatum (VS) and the orbitofrontal cortex (OFC), in adults with OCD.

Enhancing astaxanthin biosynthesis and pathway expansion towards glycosylated C40 carotenoids by Corynebacterium glutamicum.

Astaxanthin, a versatile C40 carotenoid prized for its applications in food, cosmetics, and health, is a bright red pigment with powerful antioxidant properties. To enhance astaxanthin production in Corynebacterium glutamicum, we employed rational pathway engineering strategies, focused on improving precursor availability and optimizing terminal oxy-functionalized C40 carotenoid biosynthesis. Our efforts resulted in an increased astaxanthin precursor supply with 1.

Extraction and Purification of Highly Active Astaxanthin from Fermentation Broth.

The marine carotenoid astaxanthin is one of the strongest natural antioxidants and therefore is used in a broad range of applications such as cosmetics or nutraceuticals. To meet the growing market demand, the natural carotenoid producer has been engineered to produce astaxanthin by heterologous expression of genes from the marine bacterium . To exploit this promising source of fermentative and natural astaxanthin, an efficient extraction process using ethanol was established in this study.

Screening of Structurally Distinct Lycopene β-Cyclases for Production of the Cyclic C40 Carotenoids β-Carotene and Astaxanthin by .

Lycopene β-cyclase (EC 5.5.1.