--- title: Spiders Spin 'Silk Dope' into Nature's Toughest Material description: Researchers have mapped the atomic-scale process by which spider silk proteins turn from liquid 'dope' into solid fiber. Using NMR spectroscopy on black widow... canonical: https://daily.dev/posts/spiders-spin-silk-dope-into-nature-s-toughest-material-fouvpwoxw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Spiders Spin 'Silk Dope' into Nature's Toughest Material | daily.dev og:description: Researchers have mapped the atomic-scale process by which spider silk proteins turn from liquid 'dope' into solid fiber. Using NMR spectroscopy on black widow... og:url: https://daily.dev/posts/spiders-spin-silk-dope-into-nature-s-toughest-material-fouvpwoxw og:image: https://api.daily.dev/og/posts/FOuVPwoXw.png og:image:alt: Spiders Spin 'Silk Dope' into Nature's Toughest Material og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Spiders Spin 'Silk Dope' into Nature's Toughest Material **[Hacker News](https://daily.dev/sources/hn)** · 11 min read · 0 upvotes · 0 comments ## Summary Researchers have mapped the atomic-scale process by which spider silk proteins turn from liquid 'dope' into solid fiber. Using NMR spectroscopy on black widow spiders, Hannah Johnson found that adding phosphate causes arginine and tyrosine side groups in disordered spidroin proteins to interact weakly, displacing water and forming gel-like condensates. AlphaFold and molecular dynamics simulations suggest these amino acids line up at the bends in the silk's beta sheets, possibly helping guide the proteins into their final structure. The team suggests condensates, micelles, and liquid crystals may all form simultaneously during the transition rather than as separate sequential stages. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do spiders turn liquid silk dope into solid silk fiber? Spiders convert liquid silk dope into solid fiber through a multi-stage molecular process involving condensates, micelles, and possibly liquid crystals forming together. Researchers at San Diego State University found that adding phosphate to black widow spider silk dope causes arginine and tyrosine side groups on disordered spidroin proteins to interact weakly, displacing water and forming gel-like condensates that later organize into the fiber's beta-sheet structure. _Developers tracking how AI tools like AlphaFold power scientific discovery can follow emerging research on daily.dev._ ### Why can't scientists make synthetic spider silk as strong as natural spider silk? Lab-synthesized spider silk made from the exact amino acid sequence of spidroin proteins is weaker than natural silk, and researchers don't fully know why. Kevin Chalek, a postdoctoral researcher involved in the study, suspects the extra strength comes from structural features beyond the beta sheets, possibly from parts of the spidroin protein that are often left out of synthetic silk solutions. _Anyone comparing synthetic versus natural material performance can follow materials science breakthroughs on daily.dev._ ### What role does phosphate play in spider silk formation? Phosphate in the ampulla, the middle section of a spider's silk gland, initiates liquid-liquid phase separation, the process that forms condensates during silk dope's transition to solid fiber. Biomaterials chemist Keiji Numata first proposed this phosphate-triggered mechanism in 2020, and later NMR experiments on black widow spiders confirmed that adding phosphate triggers amino acid interactions that displace water and form condensates. _Researchers studying biomaterial self-assembly can keep up with condensate biology findings via daily.dev._ ## Community take How the wider developer community reacted, aggregated from 1 discussion and 8 comments across hackernews (as of 2026-10-29). **TL;DR:** Discussion mostly drifts from the science itself into tangents about whether spider silk could ever be practically farmed or made into clothing, referencing past attempts and costs. **Sentiment:** 20% positive · 70% mixed · 10% skeptical **The case for** - Some think scaling up spider silk production could be 'doable' even at much higher cost than conventional silk. - One commenter notes a technique of inserting spider silk DNA into silkworms to make farming easier. **The pushback** - Spiders can't be farmed like silkworms since they must be milked individually rather than forming a collective cocoon. - Housing spiders individually (one per box) makes mass production impractical. **By community** - hackernews (mixed): Conversation focuses on the practicality and cost of farming spider silk rather than the underlying chemistry discussed in the post. **Open questions** - Could genetic engineering (inserting spider silk genes into silkworms) make large-scale production economically viable? **Highlights** > Silk worms make a cocoon, for a spider you would need individually "silk" each one every few days. > — [zardo on hackernews](https://news.ycombinator.com/item?id=50284692) > Also see Veritasium's excellent episode, Is Spider Web really stronger than Steel? - https://www.youtube.com/watch?v=wt4p2oalmRY It features a company with a cool technique where Spider Silk DNA is inserted into Silkworm's DNA so you can easily farm them. > — [rramadass on hackernews](https://news.ycombinator.com/item?id=50287003) > This article goes into it... Need 1e6 spiders in 1e6 boxes. > — [the\_\_alchemist on hackernews · 1 comments](https://news.ycombinator.com/item?id=50282408) > So it's probably 100-1000x as expensive as silk? That's doable. > — [Dylan16807 on hackernews · 2 comments](https://news.ycombinator.com/item?id=50284286) **Source threads** - [hackernews](https://news.ycombinator.com/item?id=50277755) · 65 points · 8 comments ## Similar posts on daily.dev - [Chemists determine the structure of the fuzzy coat that surrounds Tau proteins](https://daily.dev/posts/chemists-determine-the-structure-of-the-fuzzy-coat-that-surrounds-tau-proteins-dzj0sno1b) · MIT News · 0 upvotes · 0 comments - [Honeycomb lattice sweetens quantum materials development](https://daily.dev/posts/honeycomb-lattice-sweetens-quantum-materials-development-dfijam1es) · Phys.org · 0 upvotes · 0 comments - [Multiparty entanglement loops in quantum spin liquids](https://daily.dev/posts/multiparty-entanglement-loops-in-quantum-spin-liquids-jvwyxplxn) · Nature · 0 upvotes · 0 comments - [Melt it, spin it, use it again](https://daily.dev/posts/melt-it-spin-it-use-it-again-us5tt85w3) · MIT Technology Review · 0 upvotes · 0 comments - [A New And Strangely Strong Kind Of Plastic](https://daily.dev/posts/a-new-and-strangely-strong-kind-of-plastic-n0evgfdrw) · Hackaday · 0 upvotes · 0 comments --- Tags: [#science](https://daily.dev/tags/science) [View this post on daily.dev](https://daily.dev/posts/spiders-spin-silk-dope-into-nature-s-toughest-material-fouvpwoxw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Spiders Spin 'Silk Dope' into Nature's Toughest Material","url":"https://daily.dev/posts/spiders-spin-silk-dope-into-nature-s-toughest-material-fouvpwoxw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/spiders-spin-silk-dope-into-nature-s-toughest-material-fouvpwoxw"},"datePublished":"2026-10-29T04:02:51.405Z","dateModified":"2026-10-29T11:33:32.052Z","description":"Researchers have mapped the atomic-scale process by which spider silk proteins turn from liquid 'dope' into solid fiber. 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