Syntrophic co-culture amplification of production phenotype for high-throughput screening of microbial strain libraries.

Microbes can be engineered to synthesize a wide array of bioproducts, yet production phenotype evaluation remains a frequent bottleneck in the design-build-test cycle where strain development requires iterative rounds of library construction and testing. Here, we present Syntrophic Co-culture Amplification of Production phenotype (SnoCAP). Through a metabolic cross-feeding circuit, the production level of a target molecule is translated into highly distinguishable co-culture growth characteristics, which amplifies differences in production into highly distinguishable growth phenotypes.

Microdroplet co-cultivation and interaction characterization of human vaginal bacteria.

The human vaginal microbiome (HVM) plays a fundamental role in women's reproductive health. For instance, bacterial vaginosis (BV) is characterized by a depletion of lactobacilli and an overgrowth of strict anaerobes. Women with BV may have an increased risk of acquiring sexually transmitted diseases and adverse pregnancy outcomes.

Nuclear spin Hall and Klein tunneling effects during oxidation with electric and magnetic field inductions in graphene.

The recent observation of the explosive oxidation of graphene with enhancement for decreasing temperature and the requirements for synchronizing oxidants for collective oxidation-reduction (redox) reactions presented a chemical scenario for the thermal harvesting by the magnetic spin Hall Effect. More experimental data are presented to demonstrate such spin Hall Effect by determining the influence of spins of so-called spectator fermionic cations. Furthermore, the so-called spectator bosonic cations are discovered to cause a Klein tunneling effect during the redox reaction of graphene.