Ultrasonication-enhanced gelation properties of a versatile amphiphilic formamidine-based gelator exhibiting both organogelation and hydrogelation abilities

  1. Bachl, J. 3
  2. Sampedro, D. 1
  3. Mayr, J. 3
  4. Díaz Díaz, D. 3
  1. 1 Universidad de La Rioja

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Instituto de Química Avanzada de Cataluña

    Instituto de Química Avanzada de Cataluña

    Barcelona, España

    ROR https://ror.org/03srn9y98

  3. 3 University of Regensburg

    University of Regensburg

    Ratisbona, Alemania

    ROR https://ror.org/01eezs655

Physical Chemistry Chemical Physics

ISSN: 1463-9076

Year of publication: 2017

Volume: 19

Issue: 34

Pages: 22981-22994

Type: Article

DOI: 10.1039/C7CP03529B SCOPUS: 2-s2.0-85028630425 WoS: WOS:000408671600037 GOOGLE SCHOLAR

More publications in: Physical Chemistry Chemical Physics


Cited by

  • Scopus Cited by: 4 (19-01-2024)
  • Web of Science Cited by: 3 (28-10-2023)
  • Dimensions Cited by: 4 (06-01-2024)

JCR (Journal Impact Factor)

  • Year 2017
  • Journal Impact Factor: 3.906
  • Journal Impact Factor without self cites: 3.541
  • Article influence score: 1.078
  • Best Quartile: Q1
  • Area: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Quartile: Q1 Rank in area: 9/37 (Ranking edition: SCIE)
  • Area: CHEMISTRY, PHYSICAL Quartile: Q2 Rank in area: 46/147 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2017
  • SJR Journal Impact: 1.686
  • Best Quartile: Q1
  • Area: Physical and Theoretical Chemistry Quartile: Q1 Rank in area: 23/174
  • Area: Physics and Astronomy (miscellaneous) Quartile: Q1 Rank in area: 24/300

Scopus CiteScore

  • Year 2017
  • CiteScore of the Journal : 7.0
  • Area: Physics and Astronomy (all) Percentile: 92
  • Area: Physical and Theoretical Chemistry Percentile: 83

Journal Citation Indicator (JCI)

  • Year 2017
  • Journal Citation Indicator (JCI): 1.06
  • Best Quartile: Q1
  • Area: CHEMISTRY, PHYSICAL Quartile: Q1 Rank in area: 29/156
  • Area: PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Quartile: Q1 Rank in area: 7/40


(Data updated as of 06-01-2024)
  • Total citations: 4
  • Recent citations (2 years): 2
  • Relative Citation Ratio (RCR): 0.14
  • Field Citation Ratio (FCR): 0.55


We describe the preparation of a novel amphiphilic gelator built from a formamidine core, which is able to form a variety of physical organogels and hydrogels at concentrations ranging from 15 to 150 mg mL-1. Interestingly, ultrasound treatment of isotropic solutions (i.e., gel-precursor) resulted in a remarkable enhancement of the gelation kinetics as well as the gelation scope and characteristic gel properties (e.g., critical gelation concentration, gel-to-sol transition temperature, viscoelastic moduli) in comparison to the heating-cooling protocol typically used to obtain supramolecular gels. Thermoreversibility, thixotropy, injectability and multistimuli responsiveness are some of the most relevant functionalities of these gels. Electron microscopy imaging revealed the formation of entangled networks made of fibers of nanometer diameters and micrometer lengths, with different morphological features depending on the solvent. Insights into the driving forces for molecular aggregations were obtained from FTIR, NMR, PXRD and computational studies. The results suggest a major stabilization of the fibers through additive N-H⋯O hydrogen bonds, in combination with hydrophobic interactions, over π-π stacking interactions. © 2017 the Owner Societies.