ArXiv versus AI slop: will capping preprint submissions work?
Major preprint platform tightens its rules to curb a surge of submissions, including those generated by artificial-intelligence tools.
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Discover the world’s leading research institutions, explore collaborations, compare research performance, track top papers with Nature Index.
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2026 Research Leaders
Leading institutions Leading academic institutions Leading countries/territories
Discover the top-performing institutions and countries/territories in scientific research with the Nature Index Research Leaders.
Nature Index author gender ratio
Female authorship at leading institutions Author gender ratio by subject area and research topic
This dataset highlights the progress made towards achieving gender parity in authorship of papers tracked by the Nature Index.
Nature Index 2026 Biomedical engineering
From wearable sensors to advanced prosthetics and engineered tissues, biomedical engineering is producing new ways to understand the human body and improve patient care across the board. This supplement takes a look at the opportunities — and challenges — offered by wearable devices, the nations that are making their mark in the field according to Nature Index data, and the scientists who continue to advance the discipline through their research.
Nature Index 2026 Regenerative medicine
Regenerative medicine has the potential to transform the treatment of chronic and life-threatening diseases. But major challenges remain, such as overcoming immune rejection and ensuring that new therapies are developed using more inclusive data sets. In this supplement, we explore the discoveries that are driving the field, the barriers that could limit its progress, and the teams and institutions that are making their mark.
Most viewed institution profiles
The following institution profiles have been the most viewed on the Nature Index in the past 28 days.
- Chinese Academy of Sciences (CAS)
- Zhejiang University (ZJU)
- Max Planck Society
- Harvard University
- French National Centre for Scientific Research (CNRS)
- Malus Ecolife
- Helmholtz Association of German Research Centres
- Tsinghua University
- Indian Institute of Science (IISc)
- The University of Tokyo (UTokyo)
Most viewed news articles
The following Nature Index news articles have been the most viewed in the past 28 days.
- Hydrogels and MRI: meet three biomedical engineers reshaping health care | Nature
- Nature Index reveals the four countries to watch in biomedical engineering | Nature
- Hundreds of ‘free’ academic journals have started charging fees | Nature
- ‘Remarkably encouraging’: stem-cell treatments for autoimmune diseases enter new phase | Nature
- Elena, Aris, Marcus: AI-generated ‘ghosts’ are polluting the scientific literature | Nature
- Biomedical engineering is growing rapidly, but will it help patients? | Nature
- Lack of female researchers and participants in regenerative-medicine research holds everyone back | Nature
- Harvard loses first place in Nature Index
- Major changes to the Nature Index for 2026
- This animated map shows the true size of each country
The Nature Research Intelligence Topics are created from networks of articles that cite each other, or articles that are very similar to each other, and we have over 30,000 topics at the most granular level, grouped into a 4-level hierarchy.
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View trending research topics in the current window of the Nature Index.
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Each level 2 topic page included in the Nature Index contains an auto-generated summary, leading institutions, leading countries/territories, a 5-year trend and top collaborators.
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Institution profiles display leading research topics based on the institution's Share in the topic.
Institution collaboration
Nature Index collaborations highlight the most fruitful institutional collaborations that lead to high quality research around the world. Naturally, proximate institutions collaborate the most, which hides the many benefits from collaboration further afield. To address this, the overall leading international collaborators are shown as well as the leading collaborations involving countries/territories outside the top 50 (broadening collaborators).
Country/territory collaboration
Country/territory collaboration looks at the leading collaborators around the world, as well as within and between between regions and equatorial hemispheres. To show trends in collaboration between any two countries/territories over the past 10 years we've introduced historical country/territory collaboration.
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Choose the institutions to benchmark against.
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Use the powerful comparison feature to view side-by-side data on research output across subject areas.
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Gain valuable insights to inform your decision-making process and download table data for further analysis for free.
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