Biotechnological utilization of microbial processes normally starts with the discovery, investigation, and understanding of naturally occurring microbial reactions. Biomolecular tools can help us, not only to gain better understanding of protein reactions; they also enable us to influence reaction properties. For efficient practical applications, modern biological techniques allow us to tailor ...

Presented in this report is an overview of robotic sensors, many of which are in experimental stages. Two main sensor types are discussed: contact and noncontact. Descriptions of the physical measurements. how they are measured, and operating principles of specific devices are provided for both types of sensors. Contact, or tactile, sensors comprise three groups: touch, proximity, and slip sens...

The goal of this project is to design and build a cost-effective oxygen sensor through the use of fluorescence spectroscopic analysis on the Tris(2,2’bipyridal)dichlororuthenium(II) compound and low-cost support electronics. The objective of the project is to generate a Stern-Volmer chart and demonstrate the oxygen-quenching effect on fluorescent intensity and lifetime. A customized P-I-N photo...

Microbial extracellular electron transfer-based processes are rapidly progressing toward real-world wastewater treatment applications, but their technological progress as an electric power source remains elusive. It is mainly due to low and unstable density high internal resistance of the bioelectrochemical systems. In a recent Energy & Environmental Science article, Bombelli coworkers report b...

Biochemical oxygen demand (BOD) is a widely used index of water-quality assessment. Since bioelectrochemical BOD biosensors require anaerobic conditions for anodic reactions, they are not directly used in aerobic environments such as aeration tanks. Normally, the BOD biosensors are closed-type, where the anode is packed inside a closed chamber to avoid exposure to oxygen. In this study, a novel...