Evidence map›Paper›PMID 22309293›Full record

ArticleJournal of the American Chemical Society2012

Fine-tuning the pH trigger of self-assembly.

Arijit Ghosh, Mark Haverick, Keith Stump, Xiangyu Yang, Michael F Tweedle, Joshua E Goldberger

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed.

  1. Article
  2. Article
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  5. Article
  6. Review
  7. Article
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  9. Article
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  11. Review
  12. Article
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  14. Review
  15. Self-Assembling Hydrogel Structures for Neural Tissue Repair.ACS biomaterials science & engineering · 2021
    Review
  16. Article
  17. Review
  18. Reversible Design of Dynamic Assemblies at Small Scales.Advanced intelligent systems (Weinheim an der Bergstrasse, Germany) · 2021
    Article
  19. Review
  20. Review
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

6 authors.

Arijit GhoshDepartment of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA.
Mark Haverick
Keith Stump
Xiangyu Yang
Michael F Tweedle
Joshua E Goldberger

Funding

Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Tasleem J Padamsee · 1985 to 2026
$132.3M
NCI NIH HHS P30 CA016058
6 · The paper itself

Abstract

The creation of smart, self-assembling materials that undergo morphological transitions in response to specific physiological environments can allow for the enhanced accumulation of imaging or drug delivery agents based on differences in diffusion kinetics. Here, we have developed a series of self-assembling peptide amphiphile molecules that transform either isolated from molecules or spherical micelles into nanofibers when the pH is slightly reduced from 7.4 to 6.6, in isotonic salt solutions that simulate the acidic extracellular microenvironment of malignant tumor tissue. This transition is rapid and reversible, indicating the system is in thermodynamic equilibrium. The self-assembly phase diagrams show a single-molecule-to-nanofiber transition with a highly concentration-dependent transition pH. However, addition of a sterically bulky Gd(DO3A) imaging tag on the exterior periphery shifts this self-assembly to more acidic pH values and also induces a spherical micellar morphology at high pH and concentration ranges. By balancing the attractive hydrophobic and hydrogen-bonding forces, and the repulsive electrostatic and steric forces, the self-assembly morphology and the pH of transition can be systematically shifted by tenths a pH unit.

Indexed as

GadoliniumHeterocyclic CompoundsHydrogen-Ion ConcentrationMicellesModels, MolecularMolecular StructureOrganometallic CompoundsParticle SizePeptidesSurface PropertiesThermodynamicsGadoliniumgadoteridolHeterocyclic CompoundsMicellesOrganometallic CompoundsPeptides

Identifiers

PMID22309293
PMCPMC3932623

What OpenQuestion holds

Textmetadata
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Read underepoch 390

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.