{
  "activity_state": "active",
  "boundary": "aggregate_public_panel_not_retrieval_api",
  "canonical_url": "https://hangingcontext.com/tags/topic/materials-science/",
  "counts": {
    "appearances_24h": 8,
    "appearances_30d": 332,
    "appearances_7d": 75,
    "source_count": 71,
    "stream_count": 55
  },
  "entity_type": "tag",
  "generated_at": "2026-07-11T00:03:38+00:00",
  "html_url": "https://hangingcontext.com/tags/topic/materials-science/",
  "json_url": "https://hangingcontext.com/data/tags/topic/materials-science.json",
  "last_observed_at": "2026-07-10T20:07:21.225926+00:00",
  "name": "Materials Science",
  "page_type": "tag_context_panel",
  "path_type": "topic",
  "related_tags": [
    {
      "count": 205,
      "html_url": "https://hangingcontext.com/tags/org/chemrxiv/",
      "name": "ChemRxiv",
      "tag_id": 17780442056124589,
      "type": "organization"
    },
    {
      "count": 171,
      "html_url": "https://hangingcontext.com/tags/topic/chemistry/",
      "name": "Chemistry",
      "tag_id": 17730928402353904,
      "type": "topic"
    },
    {
      "count": 117,
      "html_url": "https://hangingcontext.com/tags/topic/energy-transition/",
      "name": "Energy Transition",
      "tag_id": 17723038993836366,
      "type": "topic"
    },
    {
      "count": 74,
      "html_url": "https://hangingcontext.com/tags/topic/electrochemistry/",
      "name": "Electrochemistry",
      "tag_id": 17782518579364155,
      "type": "topic"
    },
    {
      "count": 61,
      "html_url": "https://hangingcontext.com/tags/topic/polymers/",
      "name": "Polymers",
      "tag_id": 17782518579202017,
      "type": "topic"
    },
    {
      "count": 41,
      "html_url": "https://hangingcontext.com/tags/topic/artificial-intelligence/",
      "name": "Artificial Intelligence",
      "tag_id": 17723038993834764,
      "type": "topic"
    },
    {
      "count": 41,
      "html_url": "https://hangingcontext.com/tags/topic/catalysis/",
      "name": "Catalysis",
      "tag_id": 17782518578680849,
      "type": "topic"
    },
    {
      "count": 39,
      "html_url": "https://hangingcontext.com/tags/topic/machine-learning-research/",
      "name": "Machine Learning Research",
      "tag_id": 17782518580601405,
      "type": "topic"
    },
    {
      "count": 37,
      "html_url": "https://hangingcontext.com/tags/topic/nanomaterials/",
      "name": "Nanomaterials",
      "tag_id": 17782518579483290,
      "type": "topic"
    },
    {
      "count": 30,
      "html_url": "https://hangingcontext.com/tags/topic/semiconductors/",
      "name": "Semiconductors",
      "tag_id": 17723038993839926,
      "type": "topic"
    },
    {
      "count": 29,
      "html_url": "https://hangingcontext.com/tags/topic/energy-storage/",
      "name": "Energy Storage",
      "tag_id": 17730925995605820,
      "type": "topic"
    },
    {
      "count": 19,
      "html_url": "https://hangingcontext.com/tags/topic/infrastructure-spending/",
      "name": "Infrastructure Spending",
      "tag_id": 17723038993837523,
      "type": "topic"
    }
  ],
  "schema_version": 1,
  "slug": "materials-science",
  "source_window": "30d",
  "tag_id": 17782518578805414,
  "tag_type": "topic",
  "top_sources": [
    {
      "count": 45,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-batteries-energy-storage/",
      "name": "chemrxiv-batteries-energy-storage",
      "source_id": 17780442057955381
    },
    {
      "count": 45,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-green-process-safety-toxicology/",
      "name": "chemrxiv-green-process-safety-toxicology",
      "source_id": 17780442057954179
    },
    {
      "count": 40,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-materials-polymers-soft-matter/",
      "name": "chemrxiv-materials-polymers-soft-matter",
      "source_id": 17780442057953269
    },
    {
      "count": 27,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-ai-ml-automation/",
      "name": "chemrxiv-ai-ml-automation",
      "source_id": 17780442057942385
    },
    {
      "count": 20,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-carbon-capture-hydrogen-fuels/",
      "name": "chemrxiv-carbon-capture-hydrogen-fuels",
      "source_id": 17780442057952361
    },
    {
      "count": 17,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-catalysis-reaction-engineering/",
      "name": "chemrxiv-catalysis-reaction-engineering",
      "source_id": 17780442057955499
    },
    {
      "count": 14,
      "html_url": "https://hangingcontext.com/sources/sila-nano-insights-replacement/",
      "name": "sila-nano-insights-replacement",
      "source_id": 17830618660579701
    },
    {
      "count": 12,
      "html_url": "https://hangingcontext.com/sources/arxiv-frontier-methods-select/",
      "name": "arxiv-frontier-methods-select",
      "source_id": 17779468839061905
    },
    {
      "count": 10,
      "html_url": "https://hangingcontext.com/sources/chemrxiv-nanomaterials-semiconductors-optoelectronics/",
      "name": "chemrxiv-nanomaterials-semiconductors-optoelectronics",
      "source_id": 17780442057956859
    },
    {
      "count": 9,
      "html_url": "https://hangingcontext.com/sources/ppg-ir-rss/",
      "name": "ppg-ir-rss",
      "source_id": 17800163299732054
    }
  ],
  "top_streams": [
    {
      "count": 195,
      "html_url": "https://hangingcontext.com/streams/chemrxiv/",
      "name": "ChemRxiv",
      "slug": "chemrxiv",
      "stream_id": 17780442148971635
    },
    {
      "count": 11,
      "html_url": "https://hangingcontext.com/streams/arxiv/",
      "name": "arXiv",
      "slug": "arxiv",
      "stream_id": 17779468859058016
    },
    {
      "count": 10,
      "html_url": "https://hangingcontext.com/streams/innoscience/",
      "name": "Innoscience Technology",
      "slug": "innoscience",
      "stream_id": 17806913906759035
    },
    {
      "count": 4,
      "html_url": "https://hangingcontext.com/streams/new-hampshire-legislature/",
      "name": "New Hampshire Legislature",
      "slug": "new-hampshire-legislature",
      "stream_id": 17806683656669676
    },
    {
      "count": 4,
      "html_url": "https://hangingcontext.com/streams/oregon-legislature/",
      "name": "Oregon Legislature",
      "slug": "oregon-legislature",
      "stream_id": 17806683670592874
    },
    {
      "count": 4,
      "html_url": "https://hangingcontext.com/streams/ppg/",
      "name": "PPG Industries",
      "slug": "ppg",
      "stream_id": 17800163303482832
    },
    {
      "count": 3,
      "html_url": "https://hangingcontext.com/streams/3m/",
      "name": "3M",
      "slug": "3m",
      "stream_id": 17738004420598334
    },
    {
      "count": 3,
      "html_url": "https://hangingcontext.com/streams/amcor/",
      "name": "Amcor",
      "slug": "amcor",
      "stream_id": 17738004461540358
    },
    {
      "count": 3,
      "html_url": "https://hangingcontext.com/streams/everest-group/",
      "name": "Everest Group",
      "slug": "everest-group",
      "stream_id": 17738004675607800
    },
    {
      "count": 3,
      "html_url": "https://hangingcontext.com/streams/martin-marietta/",
      "name": "Martin Marietta",
      "slug": "martin-marietta",
      "stream_id": 17738004833970440
    }
  ]
}