Artículos científicos
Recent Submissions
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Síntesis Asistida por Microondas del Poli (Adipato de 1,4–Butanodiol)
(Universidad del País Vasco (España), 2013-11)Se propone un método para sintetizar con asistencia de radiación microondas el poli(adipato de 1,4–butanodiol) de bajo peso molecular. Se redujo en 23 h el tiempo de reacción con respecto a los sistemas de calentamiento ... -
Evaluation of Piperine as Natural Coformer for Eutectics Preparation of Drugs Used in the Treatment of Cardiovascular Diseases
(SPRINGER LINK, 2022-04-26)Piperine (PIP) was evaluated as a natural coformer in the preparation of multicomponent organic materials for enhancing solubility and dissolution rate of the poorly water-soluble drugs: curcumin (CUR), lovastatin (LOV), ... -
Síntesis y Caracterización de Celulosa Amorfa a partir de Triacetato de Celulosa
(Sociedad Química del Perú (Perú), 2014)Se realizó un estudio para la obtención y caracterización de celulosa amorfa a partir de triacetato de celulosa. Para caracterizar el material obtenido, se determinó el grado de cristalinidad mediante la difractometría ... -
Divulgación de la Nanociencia y Nanotecnología en Costa Rica 2013-2014
(Universidad Nacional (Colombia), 2015)En los últimos años el Laboratorio Nacional de Nanotecnología ha creado una iniciativa de divulgación de la nanociencia y nanotecnología en Costa Rica. En el 2014 se incorporan la Universidad Nacional, la Universidad ... -
Compuestos Híbridos Lignina - Proteína - Quitosano como Potenciales Biomateriales para Aplicaciones Industriales
(Universidad Autónoma de Nuevo León (México), 2015)En este estudio se prepararon microcápsulas del conjugado lignina -proteína - quitosano. Con el objetivo de preparar "monómeros bien defmidos (fenoles)", y utilizarlos en la síntesis de las microcápsulas, se realizó la ... -
Influencia de las nanopartículas de sílice en polímeros termoplásticos
(Universidad Nacional Autónoma (México), 2013)En este trabajo se prepararon sílices con distinto grado de hidrofilicidad para reducir el grado de interacción con el poliuretano y analizar la incidencia en las propiedades de los materiales compuestos obtenidos. Se ... -
Membranas de colágeno y quitosano de fuentes alternativas: evaluación para su uso potencial en ingeniería de tejidos
(Tecnológico de Costa Rica, 2015)Los polímeros naturales, como el colágeno y el quitosano, presentan características físicas, químicas y biológicas que los hacen buenos candidatos para usarlos como soportes análogos de matriz extracelular, con potenciales ... -
Materiales poliméricos compuestos con polietileno (PEBD) y fibras del árbol Maclura tinctoria (Moraceae)
(Universidad Estatal a Distancia (Costa Rica), 2015-12)Costa Rica has extensive areas of tropical forests that, managed with care and knowledge, can provide renewable raw materials and conserve biodiversity. Here we characterize the branches, leaves and bark of the “Mora ... -
Isomerization of Fatty Acids A Cellular Barrier Mechanism in Nanotechnology?
(American Scientific Publishers (Estados Unidos), 2017)This work is a kinetic study of the coupling reaction of 2-mercaptoethanol with methyl undecenoate and with methyl oleate through “click” chemistry. Reversibility and reactivity of each system were followed through Fourier ... -
Nanobots: development and future
(MedCrave Group (Estados Unidos), 2017)Some decades ago, nanoscale machines called “nanorobots” (better known as “nanobots”) were only in science fiction. Today, they are expected to be the next generation of nanodevices and to change the technology related to ... -
Propuesta de Incorporación de la Nanotecnología en la Educación Formal Media en Costa Rica
(Universidad Nacional (Colombia), 2017-03)El programa actual de educación media y diversificada en Costa Rica se está modificando a un sistema donde se desarrolle la observación, experimentación, investigación e indagación; tratando de mejorar y actualizar sus ... -
Synthesis and Characterization of Nanocrystalline Cellulose Derived from Pineapple Peel Residues
(Scrivener Publishing LLC (Estados Unidos), 2017-07)Pineapple peel biomass was used as raw material for nanocellulose extraction. The raw material is a residue from the Costa Rican fruit industry. The nanocellulose was obtained by a two-step hydrolysis process. Firstly, ... -
Production of Starch Films Using Propolis Nanoparticles as Novel Bioplasticizer
(Scrivener Publishing LLC (Estados Unidos), 2017-07)Because starch is a biodegradable polymer with low cost and wide availability it is an attractive material for producing edible films for fruits. Films produced with pure starch have the disadvantage of being fragile. To ... -
Biorefinery of Rice Husk to Obtain Functionalized Bioactive Compounds
(Tech Science Press (Estados Unidos), 2019)The biomass industrialization valorisation of grains and cereals is considered an opportunity for the countries where agro-industrial activity is one of its main economic activities, rendering new higher-value products ... -
Recycling and elimination of wastes obtained from agriculture by using nanotechnology: nanosensors
(MedCrave Group (Estados Unidos), 2017)In the friction process of two materials and in the presence of some proper lubricants, the wear process manifest itself as a material transfer from an element of the friction couple on the other, process specific to the ... -
Estudio preliminar de la obtención de compuestos híbridos de quitosano y polifenoles derivados de lignina a partir de subproductos agropecuarios y pesquería de camarón
(Universidad de San Carlos (Guatemala), 2017)En este estudio se prepararon y caracterizaron microcápsulas híbridas del conjugado de polifenoles derivados de la lignina proveniente de la cáscara de piña, y el quitosano obtenido a partir de la quitina de la cáscara ... -
Bio Refinery of Oily Wastes
(Juniper Publishers (Estados Unidos), 2018)Many attempts have been made in order to establish a concept for biorefinery. The simplest way to do so is in an analogous way to the current oil refinery, where multiple fuels and products are manufactured from fossil ... -
Synthesis and characterization of silver nanoparticles and their application as an antibacterial agent
(MedCrave Group (Estados Unidos), 2019)A great interest for the study of nanoscale chemical species has been studied. This review presents the main methods of chemical reduction for the preparation of silver nanoparticles, such as the preparation of silver ... -
Nanobiotechnology in Agricultural Sector: Overview and Novel Applications
(Scientific Research Publishing (China), 2019)The agricultural sector has many problems achieving the desired yield in products because of pathogens, viruses, pesticides, herbicides, temperature, soil moisture, among others. Nanotechnology, along with other sciences, ... -
Nanobiodiversity and Biomimetic Adhesives Development: From Nature to Production and Application
(Scientific Research Publishing (China), 2019)Advances in science and technology, especially in bioprospecting and biomimetics, have provided solutions to everyday problems over time. Through bioengineering, research and the discovery of the mechanisms present in ...
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