Search results for: L. Hueso

Items from 1 to 20 out of 85 results

article

Small Warriors of Nature: Novel Red Emissive Chlorophyllin Carbon Dots Harnessing Fenton‐Fueled Ferroptosis for In Vitro and In Vivo Cancer Treatment

Emel Kirbas Cilingir, Omur Besbinar, Linda Giro, Mattia Bartoli, more

Small > 20 > 18 > n/a - n/a

The appeal of carbon dots (CDs) has grown recently, due to their established biocompatibility, adjustable photoluminescence properties, and excellent water solubility. For the first time in the literature, copper chlorophyllin‐based carbon dots (Chl‐D CDs) are successfully synthesized. Chl‐D CDs exhibit unique spectroscopic traits and are found to induce a Fenton‐like reaction, augmenting photodynamic...

article

Small Warriors of Nature: Novel Red Emissive Chlorophyllin Carbon Dots Harnessing Fenton‐Fueled Ferroptosis for In Vitro and In Vivo Cancer Treatment (Small 18/2024)

Emel Kirbas Cilingir, Omur Besbinar, Linda Giro, Mattia Bartoli, more

Small > 20 > 18 > n/a - n/a

Cancer Treatments In article number 2309283, Emel Kirbas Cilingir, Açelya Yilmazer, Roger M. Leblanc, and co‐workers discuss the synthesis of copper chlorophyllin‐based carbon dots (Chl‐D CDs) that exhibit unique spectroscopic traits. These dots induce a Fenton‐like reaction, enhancing photodynamic therapy efficacy through ferroptotic and apoptotic pathways. The study explores their biocompatibility...

article

Domain of existence for the solution of some IVP's and BVP's by using an efficient ninth‐order iterative method

Fabricio Cevallos, José L. Hueso, Eulalia Martínez, Cory L. Howk

Mathematical Methods in the Applied Sciences > 43 > 14 > 7934 - 7947

In this paper, we consider the problem of solving initial value problems and boundary value problems through the point of view of its continuous form. It is well known that in most cases these types of problems are solved numerically by performing a discretization and applying the finite difference technique to approximate the derivatives, transforming the equation into a finite‐dimensional nonlinear...

article

Defining hidradenitis suppurativa phenotypes based on the elementary lesion pattern: results of a prospective study

A. Martorell, A. Jfri, S.B.L. Koster, P. Gomez‐Palencia, more

Journal of the European Academy of Dermatology and Venereology > 34 > 6 > 1309 - 1318

Background It has been proposed that two main phenotypes of hidradenitis suppurativa (HS) exist. This proposal is based upon different elementary structures detected in the skin, namely follicular subtypes and inflammatory subtypes. Having an accurate definition of these two variants could help us to better identify patients who may require an early intervention with currently approved targeted immunomodulatory...

article

Triangular and Prism‐Shaped Gold‐Zinc Oxide Plasmonic Nanostructures: In situ Reduction, Assembly, and Full‐Range Photocatalytic Performance

Bruno Bottega‐Pergher, Javier Graus, Carlos J. Bueno‐Alejo, Jose L. Hueso

European Journal of Inorganic Chemistry > 2019 > 27 > 3228 - 3234

Gold‐based nanocatalysts have been traditionally selected for multiple homogeneous and heterogeneous reactions of interest involving redox processes. Likewise, greener routes involving more efficient reactors and the use of inexpensive and nature‐mimicking excitation sources have boosted the research on photocatalysts that can drive these chemical reactions upon excitation with multiple wavelength...

article

Upconverting Carbon Nanodots from Ethylenediaminetetraacetic Acid (EDTA) as Near‐Infrared Activated Phototheranostic Agents

M. Carmen Ortega‐Liebana, M. Mar Encabo‐Berzosa, Alvaro Casanova, M. Desiree Pereboom, more

Chemistry – A European Journal > 25 > 21 > 5539 - 5546

This work describes the synthesis of nitrogen‐doped carbon nanodots (CNDs) synthesized from ethylenediaminetetraacetic acid (EDTA) as a precursor and their application as luminescent agents with a dual‐mode theranostic role as near‐infrared (NIR) triggered imaging and photodynamic therapy agents. Interestingly, these fluorescent CNDs are more rapidly and selectively internalized by tumor cells and...

article

A class of efficient high‐order iterative methods with memory for nonlinear equations and their dynamics

Cory L. Howk, José L. Hueso, Eulalia Martínez, Carles Teruel

Mathematical Methods in the Applied Sciences > 41 > 17 > 7263 - 7282

In this paper we obtain some theoretical results about iterative methods with memory for nonlinear equations. The class of algorithms we consider focus on incorporating memory without increasing the computational cost of the algorithm. This class uses for the predictor step of each iteration a quantity that has already been calculated in the previous iteration, typically the quantity governing the...

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Local Convergence and Dynamics of a Family of Iterative Methods for Multiple Roots of Nonlinear Equations

Dharmendra Kumar Gupta, Eulalia Martínez, Abhimanyu Kumar, José L. Hueso

Vietnam Journal of Mathematics > 2019 > 47 > 2 > 367-386

The local convergence of a family of iterative methods based on a parameter θ for multiple roots of nonlinear equations is established. It is established under the assumption that the derivative g^(m+ 1) of the function g satisfies the Hölder continuity condition. The existence–uniqueness theorem along with a posteriori error bounds are provided. The R-order convergence is shown to be equal to (2 +...

article

A note on “Convergence radius of Osada’s method under Hölder continuous condition”

José L. Hueso, Eulalia Martínez, D.K. Gupta, Fabricio Cevallos

Applied Mathematics and Computation > 2018 > 321 > C > 689-699

In this paper we revise the proofs of the results obtained in “Convergence radius of Osada’s method under Hölder continuous condition” [4], because the remainder of the Taylor’s expansion used for the obtainment of the local convergence radius is not correct. So we perform the complete study in order to modify the equation for getting the local convergence radius, the uniqueness radius and the error...

article

Mohs micrographic surgery in the elderly: comparison of tumours, surgery and first‐year follow‐up in patients younger and older than 80 years old in REGESMOHS

C. Camarero‐Mulas, Y. Delgado Jiménez, O. Sanmartín‐Jiménez, J.R. Garcés, more

Journal of the European Academy of Dermatology and Venereology > 32 > 1 > 108 - 112

Background The elderly population is increasing and more patients in this group undergo Mohs micrographic surgery (MMS). The few publications investigating MMS in elderly people conclude that it is a safe procedure; however, these are single‐centre studies without a comparison group. Objective To compare the characteristics of patients, tumours, MMS and 1‐year follow‐up in patients younger than...

article

Extraordinary sensitizing effect of co-doped carbon nanodots derived from mate herb: Application to enhanced photocatalytic degradation of chlorinated wastewater compounds under visible light

M. Carmen Ortega-Liebana, Jose L. Hueso, Shammi Ferdousi, Raul Arenal, more

Applied Catalysis B: Environmental > 2017 > 218 > C > 68-79

The present work investigates the role of two types of carbon nanodots (CNDs) as novel sensitizers of TiO₂ to create a visible-light driven photo-catalyst that is not only efficient for solar-driven pollution abatement, but also inexpensive, durable and environmentally-friendly. Two widely available green organic precursors, the Argentinean herb Mate and the Stevia plant have been selected as the...

article

In-situ preparation of ultra-small Pt nanoparticles within rod-shaped mesoporous silica particles: 3-D tomography and catalytic oxidation of n-hexane

Laura Uson, Jose L. Hueso, Victor Sebastian, Raul Arenal, more

Catalysis Communications > 2017 > 100 > C > 93-97

The shape and porous configuration of supports are key parameters to design outstanding catalysts. However, the selection of a proper mesoporous support, such as SBA-15, by itself does not guarantee accessibility to catalytic sites. The distribution of the active phase and its stability are strongly related to the procedure used to deposit it on the catalytic substrate. Herein, we have prepared rod-shaped...

article

In situ temperature measurements in microwave-heated gas-solid catalytic systems. Detection of hot spots and solid-fluid temperature gradients in the ethylene epoxidation reaction

Adrian Ramirez, Jose L. Hueso, Reyes Mallada, Jesus Santamaria

Chemical Engineering Journal > 2017 > 316 > C > 50-60

Infrared thermographic techniques have been used for the first time to determine real-time gas and solid temperatures, as well as gas-solid temperature gradients in microwave heated structured reactors. A special reactor vessel has been developed that allows direct observation of the catalyst under microwave heating, and an operating procedure is presented to obtain gas and solid apparent emissivities...

article

Nitrogen‐Induced Transformation of Vitamin C into Multifunctional Up‐converting Carbon Nanodots in the Visible–NIR Range

M. Carmen Ortega‐Liebana, M. Mar Encabo‐Berzosa, M. Jose Ruedas‐Rama, Jose L. Hueso

Chemistry – A European Journal > 23 > 13 > 3067 - 3073

Water‐soluble, biocompatible, and photoluminescent carbon nanodots have been obtained from the rationalized carbonization of vitamin C, a well‐known antioxidant molecule in the presence of an amine co‐reactant. Herein, we describe the positive influence of N‐doping to induce a unique pH‐dependent lifetime decay response that would be potentially attractive in biological backgrounds with intrinsic...

article

Back Cover: Nitrogen‐Induced Transformation of Vitamin C into Multifunctional Up‐converting Carbon Nanodots in the Visible–NIR Range (Chem. Eur. J. 13/2017)

M. Carmen Ortega‐Liebana, M. Mar Encabo‐Berzosa, M. Jose Ruedas‐Rama, Jose L. Hueso

Chemistry – A European Journal > 23 > 13 > 3221 - 3221

Luminescent carbon nanolights derived from ascorbic acid (vitamin C) and N‐doped with amine groups offer a selective quenching response towards copper (“ionic asteroids”) even in the presence of other interfering “ionic‐planet entities”. Other interesting properties include their potential use as pH sensors or as biocompatible labels in the visible–NIR range. More information can be found in the Full...

article

New versions of iterative splitting methods for the momentum equation

Jürgen Geiser, José L. Hueso, Eulalia Martínez

Journal of Computational and Applied Mathematics > 2017 > 309 > C > 359-370

In this paper we propose some modifications in the schemes for the iterative splitting techniques defined in Geiser (2009) for partial differential equations and introduce the parallel version of these modified algorithms. Theoretical results related to the order of the iterative splitting for these schemes are obtained. In the numerical experiments we compare the obtained results by applying iterative...

article

Ethylene epoxidation in microwave heated structured reactors

Adrián Ramírez, José L. Hueso, Reyes Mallada, Jesús Santamaría

Catalysis Today > 2016 > 273 > C > 99-105

In the present work we show the microwave-induced heating of monolithic reactors containing a thin-layered catalyst that exhibits a strong and selective heating susceptibility under microwave irradiation. The combination of microwave radiation and structured reactors has been successfully applied for the intensification of the selective oxidation of ethylene to ethylene oxide (epoxidation) while operating...

article

Innentitelbild: A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene (Angew. Chem. 37/2016)

Adrian Ramirez, Jose L. Hueso, Hugo Suarez, Reyes Mallada, more

Angewandte Chemie > 128 > 37 > 11082 - 11082

Silbernanostrukturen (dargestellt als Inseln) auf einem Kupferoxid‐Träger (dargestellt als Meer) bilden einen hervorragenden Katalysator für die selektive Epoxidierung von Ethylen bei Temperaturen unter 250 °C. J. L. Hueso, J. Santamaria et al. berichten in der Zuschrift auf S. 11324 ff., dass der Katalysator in einem einzigen Vorbehandlungsschritt mit Chlorpromotoren versetzt werden kann. Das Kupferoxid...

article

A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene

Adrian Ramirez, Jose L. Hueso, Hugo Suarez, Reyes Mallada, more

Angewandte Chemie > 128 > 37 > 11324 - 11327

The selective oxidation of ethylene to ethylene epoxide is highly challenging as a result of competing reaction pathways leading to the deep oxidation of both ethylene and ethylene oxide. Herein we present a novel catalyst based on silver and copper oxide with an excellent response in the selective oxidation pathway towards ethylene epoxide. The catalyst is composed of different silver nanostructures...

article

A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene

Adrian Ramirez, Jose L. Hueso, Hugo Suarez, Reyes Mallada, more

Angewandte Chemie International Edition > 55 > 37 > 11158 - 11161

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INFONA - science communication portal

Search results for: L. Hueso

Small Warriors of Nature: Novel Red Emissive Chlorophyllin Carbon Dots Harnessing Fenton‐Fueled Ferroptosis for In Vitro and In Vivo Cancer Treatment

Small Warriors of Nature: Novel Red Emissive Chlorophyllin Carbon Dots Harnessing Fenton‐Fueled Ferroptosis for In Vitro and In Vivo Cancer Treatment (Small 18/2024)

Domain of existence for the solution of some IVP's and BVP's by using an efficient ninth‐order iterative method

Defining hidradenitis suppurativa phenotypes based on the elementary lesion pattern: results of a prospective study

Triangular and Prism‐Shaped Gold‐Zinc Oxide Plasmonic Nanostructures: In situ Reduction, Assembly, and Full‐Range Photocatalytic Performance

Upconverting Carbon Nanodots from Ethylenediaminetetraacetic Acid (EDTA) as Near‐Infrared Activated Phototheranostic Agents

A class of efficient high‐order iterative methods with memory for nonlinear equations and their dynamics

Local Convergence and Dynamics of a Family of Iterative Methods for Multiple Roots of Nonlinear Equations

A note on “Convergence radius of Osada’s method under Hölder continuous condition”

Mohs micrographic surgery in the elderly: comparison of tumours, surgery and first‐year follow‐up in patients younger and older than 80 years old in REGESMOHS

Extraordinary sensitizing effect of co-doped carbon nanodots derived from mate herb: Application to enhanced photocatalytic degradation of chlorinated wastewater compounds under visible light

In-situ preparation of ultra-small Pt nanoparticles within rod-shaped mesoporous silica particles: 3-D tomography and catalytic oxidation of n-hexane

In situ temperature measurements in microwave-heated gas-solid catalytic systems. Detection of hot spots and solid-fluid temperature gradients in the ethylene epoxidation reaction

Nitrogen‐Induced Transformation of Vitamin C into Multifunctional Up‐converting Carbon Nanodots in the Visible–NIR Range

Back Cover: Nitrogen‐Induced Transformation of Vitamin C into Multifunctional Up‐converting Carbon Nanodots in the Visible–NIR Range (Chem. Eur. J. 13/2017)

New versions of iterative splitting methods for the momentum equation

Ethylene epoxidation in microwave heated structured reactors

Innentitelbild: A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene (Angew. Chem. 37/2016)

A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene

A Nanoarchitecture Based on Silver and Copper Oxide with an Exceptional Response in the Chlorine‐Promoted Epoxidation of Ethylene

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