Wild-type bacterial silk: a next-gen biomaterial beyond silkworm and spider silks
It all began as an attempt to purify water, when I isolated a Bacillus strain from an oil well at a depth of 1,000 meters. This bacterium showed an exceptional ability to produce a bio-polymer that purifies water, but the surprise was in its composition: a striking density of alanine acid — the core building block of silkworm silk. That’s where the bold hypothesis emerged:
Could a wild bacterium produce silk?
I formed a multidisciplinary research team to test this possibility using every tool of structural and spectroscopic analysis. We managed to spin the material into nanofibers and image it with an electron microscope. Despite the excitement of the results, we chose scientific caution, describing the material as a "silk-like protein" until the evidence was complete.
In 2018, we published the world’s first paper proving that a natural bacterium can produce a silk-like material — breaking the monopoly of spiders and silkworms in this field and opening the door to scalable bio-manufacturing. Later, our experiments showed that the material wasn’t just structurally unique but also biologically functional: anti-cancer, anti-bacterial, even anti-viral — making it more than just a substitute for traditional silk.
In 2025, I published (today’s paper) a comprehensive scientific review that establishes this material as a new kind of silk in its own right, similar to silkworm and spider silk but not identical. The review relied on precise structural analyses, spectral fingerprints, thermal behavior, and biological activity. It also laid out a practical roadmap to help researchers and manufacturers isolate this new type of microbe and harness it for effective industrial production.
The story of “bacterial silk” proves that extraordinary biological resources can be discovered in unexpected places, and that microbial pathways open new doors to clean, programmable, genetically tunable manufacturing — meeting medical, environmental, and agricultural needs in ways never before possible.
This is not just a scientific discovery —
It’s a call to reimagine the limits of what’s possible in the world of biomaterials.
https://link.springer.com/article/10.1186/s44316-025-00032-3
Prof. Dr. Desouky Ahmed Mohamed Abd-El-Haleem is a leading expert in environmental biotechnology, with a PhD from Humboldt University Berlin. His research focuses on using advanced molecular biology techniques for wastewater treatment, pollution monitoring, and pathogen detection. He has earned six patents from the Egyptian Patent Office and collaborated internationally with research teams in Germany, the U.S., Qatar, and Egypt.
Dr. Abd-El-Haleem has served as a research professor and dean at the Institute of Genetic Engineering, City of Scientific Research and Technological Applications in Alexandria, Egypt, and has supervised numerous master's and doctoral students. His expertise is widely recognized, and he has received prestigious awards, including Egypt's State Prizes in Encouragement, Excellence, and Merit, as well as the Abdulhamid Shoman Prize in Biological and Environmental Sciences.
Dr. Abd-El-Haleem is also an author of influential books like Environmental Biotechnology, Friendly Plastics, and Water Miracle, and has contributed to scientific journals and public magazines. His work continues to inspire and drive advancements in environmental biotechnology across the Arab world.
Follow the Topic
-
Biotechnology for Sustainable Materials
Biotechnology for Sustainable Materials is an open access, peer-reviewed journal featuring all aspects of biotechnology aimed at the production of sustainable and renewable materials
Related Collections
With Collections, you can get published faster and increase your visibility.
Biotechnology for Tomorrow’s Materials
The development of next-generation materials is increasingly driven by advances in biotechnology, which are transforming how materials are conceived, produced, and used. Traditionally, materials have been designed primarily to provide structural, mechanical, or chemical functions. Today, biotechnology is expanding this paradigm by introducing biological components, processes, and principles into material development, enabling the creation of systems that can sense, adapt, self-organize, self-heal, and interact dynamically with their environment.
Biotechnology offers unprecedented opportunities to create materials with capabilities that extend beyond those achievable through conventional manufacturing approaches. Biological systems provide powerful design blueprints, having evolved over millions of years to generate structures with remarkable efficiency, resilience, multifunctionality, and sustainability. By leveraging these principles, researchers are developing materials that combine high performance with reduced environmental impact and resource consumption.
Emerging biotechnological approaches are also redefining manufacturing itself. Living cells, microorganisms, and engineered biological systems can act as microscopic factories capable of producing complex materials under mild conditions, reducing dependence on energy-intensive processes and non-renewable resources. Advances in synthetic biology, metabolic engineering, artificial intelligence, automation, and biofabrication are converging to transform the way materials are discovered, designed, and produced. Together, these technologies enable the programming of biological functions, the acceleration of material development through data-driven approaches, and the implementation of scalable and sustainable manufacturing processes, paving the way for a new generation of responsive, adaptive, and regenerative materials.
These developments are fostering a new generation of materials that are not only sustainable, but also capable of interacting with living tissues, responding to environmental stimuli, supporting circular economy strategies, and contributing to more resilient technological and industrial ecosystems. As the boundaries between biology, materials science, and engineering continue to blur, biotechnology is emerging as a key driver in shaping the materials that will support future healthcare, manufacturing, environmental, and societal needs.
This Primer Collection aims to provide concise, authoritative, and accessible articles that introduce emerging concepts, technologies, and challenges at the interface between biotechnology and materials science. The collection will highlight how biological systems, processes, and principles can inspire and enable the development of tomorrow’s materials, addressing global needs in healthcare, environmental sustainability, energy, manufacturing, and circular bioeconomy.
Topics within the scope of this collection include, but are not limited to:
- biofabrication, biomanufacturing, and advanced manufacturing technologies
- engineered living materials
- bio-based, biodegradable, functional, and circular materials
- biobased nanomaterials and nanofibers synthesis and applications
- biomaterials for regenerative medicine, disease modelling, bioimaging, and medical devices
- microbial-, plant-, and cell-derived materials
- bio-inspired and nature-inspired material design
- synthetic biology and metabolic engineering for material development
- artificial intelligence and machine learning for material discovery and optimization
- smart, responsive, adaptive, and regenerative biomaterials
- sustainable polymers, biocomposites, and hybrid biomaterials
- biomineralization and biologically mediated material synthesis
- materials for environmental remediation, carbon capture, and resource recovery
- circular bioeconomy and waste-to-material strategies
- additive manufacturing, 3D bioprinting, and digital fabrication of sustainable materials
- biohybrid systems integrating biological and synthetic components
- scalable and low-energy manufacturing approaches
- emerging technologies enabling next-generation sustainable materials
This collection aims to provide concise (max. 2,500 words), authoritative, and accessible articles that explore and explain the underlying biological and technological principles, discuss recent advances and current limitations, and identify key challenges and future opportunities. Contributions should be written for a multidisciplinary readership and aim to bridge the gap between biotechnology, materials science, engineering, and sustainability.
The goal of this collection is to educate, inspire, and stimulate discussion around the transformative role of biotechnology in creating materials of the future. By presenting complex concepts in an accessible and engaging format, these Primers will serve as a valuable resource for students, researchers, innovators, and policymakers interested in advancing sustainable material solutions for the next generation.
We warmly invite researchers and experts from diverse disciplines to contribute to Biotechnology for Tomorrow’s Materials and help shape a collection that explores how biotechnology can drive the transition toward a more sustainable, resilient, and biologically integrated material world.
All submissions in this collection undergo the journal’s standard peer review process. Similarly, all manuscripts authored by a Guest Editor(s) will be handled by the Editor-in-Chief. As an open access publication, this journal levies an article processing fee (details here). We recognize that many key stakeholders may not have access to such resources and are committed to supporting participation in this issue wherever resources are a barrier. For more information about what support may be available, please visit OA funding and support, or email OAfundingpolicy@springernature.com or the Editor-in-Chief.
Publishing Model: Open Access
Deadline: Apr 05, 2027
