Matheus C. Carvalho

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About

Dr. Matheus C. Carvalho is a pioneer in open-source, low-cost instrumentation for environmental monitoring, with a particular focus on automated water sampling. His most influential work, "A low cost, easy to build, portable, and universal autosampler for liquids" (2013, 37 citations), introduced a transformative approach to field research by making automated sampling accessible to labs with limited budgets. Building on this foundation, his 2020 paper (15 citations) presents an innovative portable autosampler for shallow waters, featuring a gantry robot that delivers water from a syringe pump to 24 capped vials, controlled via an Android tablet automated with Macrodroid. This design addresses the critical gap in open-source sampling solutions, enabling researchers worldwide to conduct high-frequency, unattended water quality monitoring in remote or resource-constrained settings. Dr. Carvalho’s contributions have democratized environmental sampling, reducing costs by orders of magnitude compared to commercial alternatives. His work is particularly impactful for hydrology, limnology, and citizen science projects, where reliable, affordable equipment is essential. By combining engineering ingenuity with open-source principles, Dr. Carvalho has empowered a new generation of environmental researchers to gather robust field data without prohibitive expenses.