Results 51 to 60 of about 22,637 (128)

Light Meets Nature: Cellulose Cluster as a Natural Photoantimicrobial Agent

Small Structures, Volume 7, Issue 6, June 2026.
Cellulose derivatives exhibit cluster‐triggered emission, generating singlet oxygen through long‐lived excitonic states without conventional chromophores. This work reveals strong photoantimicrobial activity against Gram‐positive bacteria, transforming cellulose from an inactive excipient into an effective photodynamic agent.
Karina Dueñas‐Parro, Oscar Gulias, Beatriz Artalejo, Montserrat Agut, Víctor Ferrer‐Fernández, Elena Serrano, Cristina Martín, Santi Nonell, Roger Bresolí‐Obach   +8 more
wiley   +1 more source

Intramolecular cyclization in hyperbranched polyesters

, 1997
The effect of monomer structure and catalyst on the synthesis of hyperbranched polyesters based on 4,4-(4′-hydroxyphenyl)pentanoic acid has been examined. The nature of the ester group and the catalyst have a significant effect on the molecular weight of
Hawker C.J., Pomery P.J., Chu F., Hill D.J.T.   +3 more
core   +1 more source

Evolution of Theranostic Nanoparticles Through the Lens of Patents

Journal of Nanotheranostics
Theranostic nanoparticles integrate diagnostic and therapeutic potential, representing a promising approach in precision medicine. Accordingly, numerous inventions have been patented to protect novel formulations and methods.
Danielle Teixeira Freire, Júlio Abreu Miranda, Douglas Dourado, Éverton do Nascimento Alencar   +3 more
doaj   +1 more source

Hyperbranched Polyesters Based on Indole- and Lignin-Derived Monomeric Aromatic Aldehydes as Effective Nonionic Antimicrobial Coatings with Excellent Biocompatibility. [PDF]

Biomacromolecules, 2022
Li X, Wang X, Subramaniyan S, Liu Y, Rao J, Zhang B.   +5 more
europepmc   +1 more source

Functional, Hyperbranched Polyesters Via Baylis-Hillman Polymerization

Hyperbranched polyesters are among the most common hyperbranched polymers. One of the interesting features of hyperbranched polyesters is that they contain unreacted hydroxyl and carboxylic acid groups at the linear and terminal structural units, which ...
Klok, Harm-Anton, Bruchmann, Bernd, Wurm, Frederik, Ji, Sanhao   +3 more
core   +1 more source

Synthesis, Enzymatic Degradation, and Polymer-Miscibility Evaluation of Nonionic Antimicrobial Hyperbranched Polyesters with Indole or Isatin Functionalities. [PDF]

Biomacromolecules, 2021
Li X, İlk S, Linares-Pastén JA, Liu Y, Raina DB, Demircan D, Zhang B.   +6 more
europepmc   +1 more source

Ionization of acid-functionalized hyperbranched polyesters [PDF]

, 2013
Ionization of second- and third-generation hyperbranched polyesters functionalized by different acids was studied by mathematic simulation of experimental titration curves using the CPESSP programme.
Kutyrev G., Sidorov P., Kutyreva M., Ulakhovich N., Gataulina A., Salnikov Y.   +5 more
core  

HYPERBRANCHED ALIPHATIC POLYESTERS

, 1995
Hyperbranched, aliphatic polyesters of theoretically calculated molar masses 1200-44 300 were synthesized in the molten state from 2,2-bis(hydroxymethyl)propionic acid (repeating unit of AB(x) type) and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (core ...
MALMSTROM, E,, JOHANSSON, M,, HULT, A,
core   +1 more source

Unveiling the Role of Key Parameters during Molecular Growth for Optimal Poly(glycerol sebacate) Synthesis

Macromolecular Materials and Engineering
Poly(glycerol sebacate) (PGS) belongs to the hyperbranched polyesters family (HBP), which possesses an extensive variety of applications due to its tunable chemical and mechanical properties, together with its biocompatibility and biodegradability ...
Rubén Martín‐Cabezuelo, Alicia Naderpour‐Peñalver, A Sigen, Wenxin Wang, Guillermo Vilariño‐Feltrer, Ana Vallés‐Lluch   +5 more
doaj   +1 more source

Rheological Characteristics of Hyperbranched Polyesters

When the effects of physical aging below Tg are erased, the rheological response of a series of aliphatic hyperbranched polyesters is Newtonian and the melt viscosity scales roughly linearly with Mw at high Mw, indicating entanglement to be absent.
Garamszegi, L., Plummer, C. J. G., Månson, J.-A. E., Luciani, A., Nguyen, T. Q., Rodlert, M.   +5 more
core   +1 more source