Plant-like chemical gardens show how simple reactions build complex structures

In the world of chemistry, researchers have discovered a process that can create intricate, plant-like structures through simple reactions. These formations, known as chemical gardens, emerge when metal salts are introduced into water, resulting in delicate tubes and filaments that twist and bloom into various colors. This phenomenon, which has captivated scientists and artists alike, holds the potential to revolutionize material science, biomedical devices, gas capture, and even our understanding of life's origins on Earth.

The COST Action Chemobrionics (CBrio) brought together a diverse group of European experts, including chemists, physicists, mathematicians, engineers, and artists, to unravel the mysteries behind these self-growing structures. Led by Professor Julyan Cartwright of the Spanish National Research Council (CSIC), the collaboration fostered a community of researchers that has continued to thrive, with its influence seen in a growing number of publications and projects using the term "chemobrionic."

One of the most significant achievements of CBrio was the creation of the Chemobrionics Database, an online resource that categorizes chemical gardens based on their components and experimental conditions. Initially developed as an internal tool, the database was later made publicly available, attracting interest from researchers and science enthusiasts worldwide. Recognized by Altmetric, the database serves as a valuable reference for scientists seeking to explore this emerging field.

The project also made strides in science communication, with Dr. Jitka Čejková leading efforts to share the wonders of chemistry with the public. Collaborating with filmmaker Mathis Leemann, Čejková produced the documentary "Chemobrionics," which premiered at prestigious film festivals and sparked curiosity about the beauty of chemistry. Čejková also contributed to "Robot 100: Sto rozumů," a book celebrating the 100th anniversary of Karel Čapek's play R.U.R., further bridging the gap between science and creativity.

The CBrio Action has also inspired new artistic collaborations, such as the creation of "The Table and the Tubes," a booklet that uses chemical reactions to convey visual stories. Public "science and art nights" in Finland have allowed individuals to engage with complex scientific concepts in a more accessible and emotionally engaging manner. These artistic projects have helped make chemistry a subject that scientists and the public can appreciate and understand.

Professor Ágota Tóth, who coordinated the Action's mobility grants, emphasized the project's success in providing opportunities for early-career researchers to connect with leading scientists and build lasting collaborations. The Action has allowed her to participate in various COST events, receive funding, and present her work to a broader audience.

The impact of CBrio can be seen not only in research papers but also in artistic works, online resources, and educational materials. A Special Collection on Chemobrionics showcases the field's latest developments, further solidifying its legacy.

Through the CBrio Action, Europe's scientists have demonstrated that curiosity can lead to the growth of knowledge in unexpected places, even from a simple drop of salt in water. This living archive continues to attract interest from researchers and science enthusiasts, showcasing the potential of nurturing curiosity to unlock new discoveries. As chemical gardens continue to grow in laboratories around the world, they stand as symbols of both nature's creativity and human imagination.