Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jorge Ayarza"'
Publikováno v:
Mammalogy Notes, Vol 10, Iss 2 (2024)
El ratón de montaña (Thomasomys niveipes) es un roedor neotropical endémico de Colombia y exclusivo de la Cordillera Oriental, el cual presenta una dieta generalista que incluye insectos, hojas y hongos. Basados en observaciones directas presentam
Externí odkaz:
https://doaj.org/article/68b0d56088264dbb9457dd1f9f048991
Autor:
Jorge Ayarza, Jun Wang, Hojin Kim, Pin-Ruei Huang, Britteny Cassaidy, Gangbin Yan, Chong Liu, Heinrich M. Jaeger, Stuart J. Rowan, Aaron P. Esser-Kahn
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract Mineralization is a long-lasting method commonly used by biological materials to selectively strengthen in response to site specific mechanical stress. Achieving a similar form of toughening in synthetic polymer composites remains challengin
Externí odkaz:
https://doaj.org/article/d68a487c21b249b08f67f451d8667c26
Autor:
Jorge Ayarza
Publikováno v:
Revista de Química, Vol 35, Iss 2 (2021)
En el año 2020 se conmemoró el centenario de la aparición de la ciencia macromolecular o ciencia de los polímeros. La investigación pionera del químico alemán Herman Staudinger en 1920, el cual acuñó el término ‘polímero’, inició esta
Externí odkaz:
https://doaj.org/article/cabeb29b031c425d88261ac2fdbce4fd
Publikováno v:
ACS Applied Engineering Materials. 1:175-183
Publikováno v:
ACS Macro Letters. 10:799-804
Mechanically adaptive polymers could significantly improve the life-cycle of current materials. Piezo-polymerization is a novel approach that harnesses vibrational mechanical energy through piezoelectric nanoparticles to generate chemical promoters f
Publikováno v:
ACS Macro Letters. 9:1237-1248
Synthetic polymeric materials with adaptive capabilities triggered by mechanical stimuli could significantly extend their life cycle and boost performance. To achieve this, robust mechanically responsive chemistries must be developed. Piezoelectrical
Publikováno v:
Nature materials. 20(6)
In nature, bone adapts to mechanical forces it experiences, strengthening itself to match the conditions placed upon it. Here we report a composite material that adapts to the mechanical environment it experiences-varying its modulus as a function of
Autor:
Aaron P. Esser-Kahn, Jorge Ayarza, Philip J. Griffin, Hemakesh Mohapatra, Angelique M. Scheuermann, Emily C Sanders
Publikováno v:
Angewandte Chemie. 130:11378-11382
Mechano-activated chemistry is a powerful tool for remodeling of synthetic polymeric materials, however, few reactions are currently available. Here we show that using piezochemical reduction of a CuII -based pre-catalyst, a step-growth polymerizatio
Autor:
Suyeon Kim, Javier Nakamatsu, Rafael Aguilar, Jorge Ayarza, Eduardo Ramírez, Mariela Elgegren
Publikováno v:
Construction and Building Materials. 139:193-202
Carrageenan, a biodegradable natural polymer, was evaluated as a bioadditive to improve the physical and mechanical properties of adobe constructions. The results show that its incorporation in the mixture during blocks fabrication, or as a coating i
Publikováno v:
Angewandte Chemie (International ed. in English). 58(35)
Mechanical initiation of polymerization offers the chance to generate polymers in new environments using an energy source with unique capabilities. Recently, a renewed interest in mechanically controlled polymerization has yielded many techniques for