Evidence map›Paper›PMID 21532937›Full record

ArticleMacromolecules2010

Drug-loaded, bivalent-bottle-brush polymers by graft-through ROMP.

Jeremiah A Johnson, Ying Y Lu, Alan O Burts, Yan Xia, Alec C Durrell, David A Tirrell, Robert H Grubbs

Abstract read
In one paragraph

Article in Macromolecules, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
9.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 333 citations in OpenAlex.

  1. Generalizable Strategies for the Synthesis of Cereblon-Recruiting PROTAC Prodrugs.Angewandte Chemie (International ed. in English) · 2026
    Article
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  3. Article
  4. Article
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  6. Article
  7. Review
  8. Article
  9. ACS macro letters · 2025
    Article
  10. Hydrazine-Catalysed Ring-Opening Metathesis Polymerization Of Cyclobutenes.Angewandte Chemie (International ed. in English) · 2024
    Article
  11. Review
  12. Bottlebrush Networks: A Primer for Advanced Architectures.Angewandte Chemie (International ed. in English) · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Synthesis of Bottlebrush Polymers byJournal of the American Chemical Society · 2023
    Article
  17. Article
  18. Article
  19. Review
  20. Article

5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Jeremiah A JohnsonDivision of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125.
Ying Y Lu
Alan O Burts
Yan Xia
Alec C Durrell
David A Tirrell
Robert H Grubbs
California Institute of Technology · US

Funding

REAGENTS FOR ORGANIC SYNTHESIS BASED ON TRANSITION METALR01GM031332 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI GRUBBS, ROBERT HOWARD · 1985 to 2016
$6.1M
NIGMS NIH HHS R01 GM031332
6 · The paper itself

Abstract

Graft-through ring-opening metathesis polymerization (ROMP) using ruthenium N-heterocyclic carbene catalysts has enabled the synthesis of bottle-brush polymers with unprecedented ease and control. Here we report the first bivalent-brush polymers; these materials were prepared by graft-through ROMP of drug-loaded polyethylene-glycol (PEG) based macromonomers (MMs). Anticancer drugs doxorubicin (DOX) and camptothecin (CT) were attached to a norbornene-alkyne-PEG MM via a photocleavable linker. ROMP of either or both drug-loaded MMs generated brush homo- and co-polymers with low polydispersities and defined molecular weights. Release of free DOX and CT from these materials was initiated by exposure to 365 nm light. All of the CT and DOX polymers were at least 10-fold more toxic to human cancer cells after photoinitiated drug release while a copolymer carrying both CT and DOX displayed 30-fold increased toxicity upon irradiation. Graft-through ROMP of drug-loaded macromonomers provides a general method for the systematic study of structure-function relationships for stimuli-responsive polymers in biological systems.

Identifiers

PMID21532937
PMCPMC3083120
OpenAlexW2015467604

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.