Jorge L. Cholula-Díaz

Verified

Jorge verified their affiliation via an institutional email.

Learn more

Verified

Jorge verified their affiliation via an institutional email.

Learn more

• Dr. rer. nat.
• Professor at Tecnológico de Monterrey

Green hydrogen (H2) is an important sustainable energy carrier due to its eco-friendly nature and high energy density. However, the large overpotentials associated with the oxygen evolution reaction (OER) present a challenge for industrial-scale (H2) production through alkaline water electrolysis (AWE). Herein, we synthesized NiCo2O4/NiO heterostru...

Background and Aim Over the past years, noble metal-based nanoparticles have been extensively investigated for their applications in nanomedicine. However, there are still concerns about the potential adversities that these nanoparticles may present in an organism. In particular, whether they could cause an exacerbated cytotoxic response in suscept...

Breast cancer poses a global threat with rising incidence and high mortality. Conventional treatments, including chemotherapy, radiation, surgery, and immunotherapy, have side effects, such as resistance issues and adverse effects due to genetic mutations. Meanwhile, noble metal nanoparticles (NPs) synthesized using environmentally friendly methods...

Developing efficient and low-cost electrocatalysts for the oxygen evolution reaction (OER) is crucial for sustainable hydrogen production through water splitting. In this study, CoFe2O4 and NiFe2O4 nanoparticles as electrocatalysts were prepared via an inexpensive method involving the use of bicontinuous microemulsions as nanoreactors. The crystall...

The world faces threats that the United Nations has classified into 17 categories with different objectives as solutions for each challenge that are enclosed in the Sustainable Development Goals (SDGs). These actions involved the widespread use of science and technology as pathways to ensure their implementation. In this regard, sustainability scie...

The green synthesis of nanomaterials offers advantages over traditional chemical methods, such as the production of biocompatible nanostructures in an environmentally friendly and cost-effective manner. Among all of the available green synthesis routes, the use of bacteria offers a high-throughput and versatile synthesis of nanoparticles that can b...

The conformal atomic layer deposition of a transparent conductive oxide composed of Al-doped ZnO (AZO) over three-dimensional (3D) shaped ZrO2 microarchitectures produced using two-photon lithography (TPL) is reported here for the first time. The effect of ZrO2 morphology, surface roughness, and crystallographic phase (tetragonal and monoclinic) on...

The management and treatment of infectious bacterial diseases in wound healing have both become significant research areas in the biomedical field. While current treatments show limitations related to toxicity and exposure time, nanotechnology has become a potential alternative to overcome such challenges. The application of different nanomaterials...

As already indicated in Chapter 2, Nanomaterials to aid wound healing and infection control, various types of metallic- and nonmetallic nanomaterials can be used to aid the wound healing process and to keep bacterial infections in check. While serving as powerful tools on their own, various types of nanomaterials can unravel their true potential by...

Combining polymers with various nanomaterials has resulted in considerable advances in applying polymer science to nanomedicine in medical approaches. However, most of these applications ultimately seek to perfectly mimic different tissues and organs within the treatment host to avoid potential disruptions in their functionality and viability. Desp...

The production of nanoparticles for biomedical applications (namely with antimicrobial and anticancer properties) has been significantly hampered using traditional physicochemical approaches, which often produce nanostructures with poor biocompatibility properties requiring post-synthesis functionalization to implement features that such biomedical...

Antimicrobial resistance is one of the biggest problems that the healthcare system faces nowadays, with an increasing burden due to the COVID-19 pandemic. Different alternatives to the current treatments of bacterial infections have been studied far away from the use of traditional antibiotics. One of them is nanotechnology, which proposes a suitab...

Nanostructured silver (Ag) and gold (Au) are widely known to be potent biocidal and cytotoxic agents as well as biocompatible nanomaterials. It has been recently reported that combining both metals in a specific chemical composition causes a significant enhancement in their antibacterial activity against antibiotic-resistant bacterial strains, as w...

Currently, hydrogen production is based on the reforming process, leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. The production of green hydrogen from...

Current hydrogen production is based on the reforming process leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. Production of green hydrogen from water e...

Current hydrogen production is based on the reforming process leading to the emission of pollutants; therefore, a substitute production method is imminently required. Water electrolysis is an ideal alternative for large-scale hydrogen production, as it does not produce any carbon-based pollutant byproducts. Production of green hydrogen from water e...

Cardiovascular tissue engineering has been quickly escalating into one of the fastest-growing subsects within the field. This is due to the increase and prevalence of associated diseases and the need for tissue replacement and reconstruction. As one of the most novel additions to the cardiovascular platform, nanotechnology and nanomedicine-based ap...

Nanostructured noble metals are of great interest because of their tunable optical and electronic properties. However, the green synthesis of anisotropic nanostructures with a defined geometry by the systematic nanoassembly of particles into specific shape, size, and crystallographic facets still faces major challenges. The present work aimed to es...

[This corrects the article DOI: 10.2147/IJN.S175640.].

Glucose determination is an essential procedure in different fields, used in clinical analysis for the prevention and monitoring of diabetes. In this work, modified carbon paste electrodes with Cu2O nanocubes (Cu2O NCs) were developed to test electrochemical glucose detection. The synthesis of the Cu2O NCs was achieved by a green method using starc...

The impact of nanotechnology has triggered significant advances in a wide variety of fields, especially medicine. Within the biomedical field, the identification of key compounds involved in different pathologies and the diagnoses of those has become a pivotal activity that has been tremendously benefited from the use of nanobiosensors. These nanos...

In the United States, breast cancer is the second leading cause of cancer-related deaths in women, according to the reports of the American Cancer Society (ACS) in 2019. Nanotechnology provides innovative strategies to combat breast cancer. In addition to current nanoplatforms such as liposomes and dendrimers that are designed for cancer therapeuti...

Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of...

Introduction: Current brain cancer treatments, based on radiotherapy and chemotherapy, are sometimes successful, but they are not free of drawbacks. Areas covered: Traditional methods for the treatment of brain tumors are discussed here with new solutions presented, among which the application of nanotechnology has demonstrated promising results ov...

Polycrystalline structures, such as nanoparticles and thin-films, commonly broaden X-ray line profiles due to the presence of dislocation substructures. In this study, the microstructures of gold nanoparticles (AuNPs) and gold thin-films (AuTFs) were analyzed through X-ray line profile analysis according to a series of integral breadth methods. Our...

The rise of nanotechnology has brought to the world a new potential and broader perspective of what humanity can achieve through material manipulation at the nanoscale. As a consequence, the use of different nanomaterials has revolutionized both the industrial and biomedical worlds. Metallic and metal-oxide nanostructures have shown great potential...

Bimetallic nanoparticles, or BMNPs, are nanosized structures that are of growing interest in biomedical applications. Although their production shares aspects with physicochemical approaches for the synthesis of their monometallic counterparts, they can show a large variety of new properties and applications as a consequence of the synergetic effec...

Tellurium (Te) is a brittle, mildly toxic, and rare metalloid with an extremely low abundance in the planet. The element has been used in both its bulk and nanoscale forms for several applications in solar cell industry, semiconductors, catalysis, or heavy metal removal, among others. The end of the last century witnessed an explosion in new strate...

Introduction: Current treatments for osteogenic disorders are often successful, however they are not free of drawbacks, such as toxicity or side effects. Nanotechnology offers a platform for drug delivery in the treatment of bone disorders, which can overcome such limitations. Nevertheless, traditional synthesis of nanomaterials presents environmen...

Los estudiantes que ingresan al curso de Química, son alumnos de primer semestre de profesional y llegan provenientes del bachillerato con niveles de habilidades y conocimientos muy heterogéneos. Normalmente, sus niveles de dominio de las competencias disciplinares del área de ciencias son muy bajos siendo un problema central el que poseen capacida...

Background Traditional physicochemical approaches for the synthesis of compounds, drugs, and nanostructures developed as potential solutions for antimicrobial resistance or against cancer treatment are, for the most part, facile and straightforward. Nevertheless, these approaches have several limitations, such as the use of toxic chemicals and prod...

Background and aim Bimetallic silver/gold nanosystems are expected to significantly improve therapeutic efficacy compared to their monometallic counterparts by maintaining the general biocompatibility of gold nanoparticles (AuNPs) while, at the same time, decreasing the relatively high toxicity of silver nanoparticles (AgNPs) toward healthy human c...

Bacterial infections and cancer are two of the most significant concerns that the current healthcare system should afford nowadays. Nanotechnology is presented as a solution. However, traditional nanoparticle synthesis methods involving chemical and physical approaches can be costly and potentially harm the environment due to the creation of toxic...

Check out the complete Abstract at: http://ma.ecsdl.org/content/MA2018-02/52/1794.short

Monometallic silver and gold, and bimetallic silver/gold nanocrystals (Ag-NCs, Au-NCs, and Ag/Au-NCs, respectively) have been object of intense research during the last years, mainly due to their excellent antimicrobial effects, as well as their potential applications in anticancer treatments. The aim of this experimental work was to establish a hi...

The demonstration of the direct deposition of nanographene sheets (NGSs) on dielectric substrates by catalyst-free CVD variants has encouraged an intensive research activity in this area. The aim of this work was to deposit well conductive NGS-based thin films on common mm 2-area dielectrics substrates (Si 3 N 4 , SiO 2 , glass, etc.) commonly used...

Carbon based materials, such as glassy carbon or highly oriented pyrolytic carbon (HOPG), have been used extensively as working electrodes for electrodeposition. Due to their chemical inertness and electrochemical stability they are commonly used as substrates for electrodeposition studies. HOPG in particular has attracted great deal of attention d...

Ascorbic acid (vitamin C) has an essential role in the human body mainly due to its antioxidant function. In this work, metallic silver nanoparticle (AgNP) colloids were used in SERS experiments to detect ascorbic acid in aqueous solution. The AgNPs were synthesized by a green method using potato starch as reducing and stabilizing agent, and water...

Zinc oxide (ZnO) thin films were grown by pulsed layer deposition under an N2 atmosphere at low pressures on a- and r-plane sapphire substrates. Structural studies using X-ray diffraction confirmed that all films had a wurtzite phase. ZnO thin films on a- and r-plane sapphire have grown with orientations along the [0002] and [112[combining macron]0...

Zinc oxide (ZnO) is a direct wide-gap-semiconductor that has arisen as one of the most important material for electronic and optoelectronic devices.1 The aim of this experimental work was to investigate the electrical transport properties of ZnO thin films grown on different sapphire substrates as a function of an applied AC at different frequencie...

CuInS2 nanocrystals were synthesized by thermal decomposition of the molecular precursor [(Me3P)3Cu(SC2H4S)IniPr2] in the presence of oleylamine in dioctyl phthalate. According to X-ray diffraction patterns, the as-synthesized CuInS2 nanocrystals crystallize in the wurtzite type structure. High-resolution transmission electron images and selected a...

Millimeter size high quality crystals of CuGaS2 were grown by chemical vapor transport. The highly ordered chalcopyrite structure is confirmed by X-ray diffraction and Raman spectroscopy. According to energy dispersive X-ray spectroscopy the composition of the crystals is very close to the formula CuGaS2. Room temperature photoluminescence measurem...