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O primeiro país a se lançar ao cosmos foi a União Soviética, ao lançar o satélite Sputnik I, em 1957. A partir de então, o espaço se tornou a nova fronteira para a projeção de prestígio nacional e poderio dos Estados, principalmente EUA e URSS ...
Renata Corrêa Ribeiro
doaj +1 more source
Simple Modifications of Branched PEI Lead to Highly Efficient siRNA Carriers with Low Toxicity [PDF]
Polymer carriers like PEI which proved their efficiency in DNA delivery were found to be far less effective for the applications with siRNA. In the current study, we generated a number of nontoxic derivates of branched PEI through modification of amines ...
Zintchenko, Arkadi +3 more
core +1 more source
Las instituciones de educación superior ―al igual que cualquier organización― necesitan de gestión estratégica de tecnologías de la información, la que permita alinear sus proyectos tecnológicos hacia el logro de los objetivos institucionales (Hinojo ...
VANESSA MARIBEL CHOQUE
doaj +3 more sources
A new strategy for stem cells therapy for erectile dysfunction: Adipose-derived stem cells transfect Neuregulin-1 gene through superparamagnetic iron oxide nanoparticles [PDF]
Purpose: Our previous studies showed that nanotechnology improves derived adipose-derived stem cells (ADSCs) therapy for erectile dysfunction (ED). In this study, the Neuregulin-1(NRG1) gene was transfected into ADSCs with superparamagnetic iron oxide ...
Jianxing Cheng +5 more
doaj +1 more source
Co-assembly of graphene/polyoxometalate films for highly electrocatalytic and sensing hydroperoxide
Graphene oxide (GO) films mixed with polyethylenimine (PEI) were prepared by a layer-by-layer assembly (LBL) method, in which the GO component is then converted to reduced GO (rGO) in situ through an electron transfer interaction with a polyoxometalate ...
Yayan Bao +8 more
doaj +1 more source
Linear polyethyleneimine (L-PEI) was obtained from the acidic hydrolysis of poly(2-ethyl-2-oxazoline) and employed in the synthesis of physically crosslinked L-PEI hydrogel, PC-L-PEIH, chemically crosslinked L-PEI hydrogel, CC-L-PEIH, and cryogels, CC-L ...
Mehtap Sahiner +3 more
doaj +1 more source
Soybean (Glycine max) allergy can be life threatening. A lack of causative immunotherapy of soybean allergy makes soybean avoidance indispensable. Detection methods are essential to verify allergen labeling and unintentional allergen cross contact during
Stefanie M. Allgöwer +6 more
doaj +1 more source
Objetivo: El estudio examina los impactos del PEI en el estado de Sonora, México, mediante el diseño de un modelo que permite evaluar el peso moderador de factores relacionados con las características de las empresas y las características del proyecto ...
Cristóbal Dávila-Borbón +2 more
doaj +1 more source
The soybean (Glycine max) has been recognized as a frequent elicitor of food allergy worldwide. A lack of causative immunotherapy of soybean allergy makes soybean avoidance essential.
Stefanie M. Allgöwer +2 more
doaj +1 more source
The cytotoxicity of OTMCS-PEI-R18.
(A) Degradation of OTMCS-PEI-R18. (B) Cytotoxicity of OTMCS-PEI-R18 and other PEI derivates at various concentrations in Hela cell line using the MTT assay. OTMCS-PEI-R13, OTMCS-PEI and PEI 25 KDa were used as controls.
Yuan Mao (403724) +6 more
core +1 more source

