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Crucial stem cell experiments? Stem cells, uncertainty, and single-cell experiments
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2015)I have previously argued that stem cell experiments cannot in principle demonstrate that a single cell is a stem cell ([reference omitted for anonymous review]). Laplane and others dispute this claim, citing experiments ... -
Cryo-EM structure of translesion DNA synthesis polymerase ζ with a base pair mismatch
Malik, Radhika; Johnson, Robert E.; Prakash, Louise; Prakash, Satya; Ubarrechena Belandia, Iván
; Aggarwal, Aneel K. (Nature Research, 2022-02)
[EN] The B-family multi-subunit DNA polymerase ζ (Polζ) is important for translesion DNA synthesis (TLS) during replication, due to its ability to extend synthesis past nucleotides opposite DNA lesions and mismatched base ... -
Cryo-TEM assessment of droplet nucleation efficiency in hybrid acrylic/CeO2 semibatch miniemulsion polymerization
Aguirre Arrese, Miren; ; ; (ACS, 2014-11-26)
Monomer droplet nucleation has been successfully tracked in a seeded semibatch miniemulsion polymerization with miniemulsion feeding. Taking advantage of the marker capacity of CeO2 nanoparticles two polymerizations were ... -
CryoEM structural exploration of catalytically active enzyme pyruvate carboxylase
(Nature, 2022-10)Pyruvate carboxylase (PC) is a tetrameric enzyme that contains two active sites per subunit that catalyze two consecutive reactions. A mobile domain with an attached prosthetic biotin links both reactions, an initial biotin ... -
Cryptic reservoirs of micro-eukaryotic parasites in ecologically relevant intertidal invertebrates from temperate coastal ecosystems unveiled by a combined histopathological, ultrastructural, and molecular approach
(2021-09-10)La mayoría de los eucariotas son organismos unicelulares (protistas), muchos de ellos pertenecientes a linajes que divergieron temprano en la historia evolutiva de este Dominio de organismos nucleados. Microscópicos, ... -
Crystal structure and characterization of a new μ-oxo bridged iron porphyrin
; Barandika Argoitia, Miren Gotzone; Bazán Blau, Begoña del Pilar ; Urtiaga Greaves, Miren Karmele ; Arriortua Marcaida, María Isabel (2016-04-22)
Metalloporphyrin systems are one of the cornerstones on which the existence of life is based, as major biochemical, enzymatic and photochemical functions depend on the special properties of the tetrapyrrolic macrocycle. ... -
Crystal structure and phase transition studies in perovskite-type oxides using powder-diffraction techniques and symmetry-mode analysis : SrLnMRuO6 (Ln=La,Pr,Nd; M=Zn,Co,Mg,Ni,Fe) and ALn2CuTi2O9 (A=Ca,Ba; Ln=La,Pr,Nd,Sm)
(2013-05-27)La tesis se ha centrado en la síntesis y caracterización estructural de materiales tipo perovskita: SrLnMRuO6 (Ln=La,Pr,Nd; M=Zn,Co,Mg,Ni,Fe) y ALn2CuTi2O9 (A=Ca,Ba; Ln=La,Pr,Nd,Sm). El estudio de las estructuras de los ... -
Crystal structure of K0.75[FeII 3.75FeIII 1.25(HPO3)6]- 0.5H2O, an open-framework iron phosphite with mixed-valent FeII/FeIII ions
; ; Legarra Sáez, Estíbaliz; Aguayo Urquijo, Andrés Tomás ; Arriortua Marcaida, María Isabel (International Union of Crystallography, 2016)
Single crystals of the title compound, potassium hexaphosphitopentaferrate( II,III) hemihydrate, K0.75[FeII 3.75FeIII 1.25(HPO3)6] 0.5H2O, were grown under mild hydrothermal conditions. The crystal structure is isotypic ... -
Crystallization and morphology of multiphasic polymeric systems: random copolymers, nanocomposites and polymers with complex chain topologies.
(2019-01-29)En el presente trabajo se caracterizaron térmica, estructural y morfológicamente diferentes sistemas multifásicos, entre los que se incluyen: (a) copoliésteres al azar con diferentes unidades repetitivas y comportamiento ... -
Crystallization and morphology of poly (butylene succinate-ran-butylene azelate) random isodimorphic copolymers.
(2019-01-11)En el presente trabajo se ha estudiado la estructura, morfología y cristalización de los copolímeros al azar PBS-ran-PBAz. Para ello hemos utilizado las técnicas de Calorimetría Diferencial de Barrido (DSC), Difracción de ... -
Crystallization and Morphology of Triple Crystalline Polyethylene-b-poly(ethylene oxide)-b-poly(ε-caprolactone) PE-b-PEO-b-PCL Triblock Terpolymers
Matxinandiarena Almandoz, Eider; Mugica Iztueta, Miren Agurtzane; Zubitur Soroa, María Manuela; Ladelta, Viko; Zapsas, George; Cavallo, Dario; Hadjichristidis, Nikos; Müller Sánchez, Alejandro Jesús (MDPI, 2021-09-16)
The morphology and crystallization behavior of two triblock terpolymers of polymethylene, equivalent to polyethylene (PE), poly (ethylene oxide) (PEO), and poly (ε-caprolactone) (PCL) are studied: PE227.1-b-PEO4615.1-b-PCL3210.4 ... -
Crystallization and self-assembly of ferroelectric/piezoelectric materials designed for organic electronic devices
(2022-10-04)La presente tesis doctoral trata sobre la caracterización de diversos sistemas compuestos por PVDF. Este polímero aparte de buenas propiedades mecánicas también puede tener propiedades ferroeléctricas y piezoeléctricas, ... -
Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
; ; ; ; Müller Sánchez, Alejandro Jesús; (Elservier, 2019-06-13)
Three semicrystalline polyesters, poly(lactic acid), poly(caprolactone) and poly(butylene succinate) (PLA, PCL and PBS) were melt blended to prepare binary and ternary systems of selected compositions. In binary blends ... -
Crystallization and Stereocomplexation of PLA-mb-PBS Multi-Block Copolymers
D'Ambrosio, Rosa M.; Michell, Rose Mary; Mincheva, Rosica; Hernández, Rebeca; Mijangos, Carmen; Dubois, Philippe; Müller Sánchez, Alejandro Jesús (MDPI, 2017-12-22)
The crystallization and morphology of PLA-mb-PBS copolymers and their corresponding stereocomplexes were studied. The effect of flexible blocks (i.e., polybutylene succinate, PBS) on the crystallization of the copolymers ... -
Crystallization Behavior and Mechanical Properties of Poly(ε-caprolactone) Reinforced with Barium Sulfate Submicron Particles
; Diego Martín, Paul; Meaurio Arrate, Emiliano ; Muñoz Ugartemendia, Jone ; Sarasua Oiz, José Ramón (MDPI, 2021-05-02)
Poly(ε-caprolactone) (PCL) was mixed with submicron particles of barium sulfate to obtain biodegradable radiopaque composites. X-ray images comparing with aluminum samples show that 15 wt.% barium sulfate (BaSO4) is ... -
Crystallization Behavior and Morphology of Biodegradable Poly(ε-caprolactone)/Reduced Graphene Oxide Scaffolds
(MDPI, 2022-08-24)Morphology, thermal properties and the non-isothermal melt crystallization kinetics of biodegradable poly(ε-caprolactone) (PCL)/reduced graphene oxide (rGO) scaffolds are studied with differential scanning calorimetry (DSC) ... -
Crystallization Kinetics and Nanoparticle Ordering in Semicrystalline Polymer Nanocomposites
; ; ; ; ; ; Müller Sánchez, Alejandro Jesús; (Elsevier, 2022-03-13)
There has been considerable interest in the nucleation and crystallization of polymers in the presence of nanoparticles (NPs, or nanofillers in general, NFs). Most of the extensive work in this area has focused on anisotropic, ... -
Crystallization kinetics of semiconducting poly(2,5-bis(3-alkylthiophen-2-yl)-thieno-[3,2-b]thiophene) (PBTTT) from its different liquid phases
; Müller Sánchez, Alejandro Jesús; (RSC, 2024)
Because the electronic properties of semiconducting polymers are inexorably linked to their solid-state microstructure, it is imperative to understand their complex crystallization processes fully. For example, ... -
Crystallization of a Self-Assembling Nucleator in Poly(L-lactide) Melt
Wang, Wei; Saperdi, Angelo; Dodero, Andrea; Castellano, Maila; Müller Sánchez, Alejandro Jesús; Dong, Xia; Wang, Dujin; Cavallo, Dario (American Chemical Society, 2021-09-01)
[EN]In the present work, crystallization of a soluble nucleator N, N′, N″-tricyclohexyl-1,3,5-benzenetricarboxylamide (TMC-328) in a poly(l-lactic acid) (PLLA) matrix has been studied at different temperatures. Based on ... -
Crystallization of isodimorphic aliphatic random copolyesters: pseudo-eutectic behavior and double-crystalline materials
Pérez Camargo, Ricardo Arpad; Arandia, Idoia; Safari, Maryam; Cavallo, Dario; Lotti, Nadia; Soccio, Michelina; Müller Sánchez, Alejandro Jesús (Elservier, 2018-02-28)
Isodimorphic random copolyesters are intriguing polymeric materials that can crystallize in their entire composition range, despite the random distribution of comonomer units along their chains. This behavior stems from ...