Excessive riverine nutrient concentrations threaten aquatic ecosystem structure and
functioning and can pose substantial risks to human health. Robust monitoring strategies …

Abstract 3D printing functional parts with known mechanical properties is challenging using
variable open source 3D printers. This study investigates the mechanical properties of 3D …

Nitrates and nitrites are common in water systems, sewage and food. Their presence in low
amounts in aquatic ecosystems is desirable for the growth and development of living …

3D printing, also known as additive manufacturing, is the computer-guided process of
fabricating physical objects by depositing successive layers of material. It has transformed …

The rise of Free and Open Source models for software development has catalyzed the
growth of Free and Open Source Hardware (also known as “Libre Hardware”). Libre …

Highlights•The system had a decision making unit implemented in a smartphone
application.•The device was usable up to at least 10 days after the enzyme …

Isaac Newton famously observed that “if I have seen further it is by standing on the
shoulders of giants.” We propose that this sentiment is a powerful motivation for the “open …

The advent of easy-to-use open source microcontrollers, off-the-shelf electronics and
customizable manufacturing technologies has facilitated the development of inexpensive …

An open-source syringe pump has been developed for use in the analytical laboratory. Most
pump parts are made on a 3D printer. Other parts (lead screw, guide rods, stepper motor …

The open-source release of self-replicating rapid prototypers (RepRaps) has created a rich
opportunity for low-cost distributed digital fabrication of complex 3-D objects such as …