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32 results on '"Mercado-Cabrera, Antonio"'

1. Machine Learning for Identifying Atomic Species from Optical Emission Spectra Generated by an Atmospheric Pressure Non-thermal Plasma

Author

Rosales-Martínez, Octavio, Flores-Fuentes, Allan A., Mercado-Cabrera, Antonio, Peña-Eguiluz, Rosendo, Granda-Gutiérrez, Everardo Efrén, García-Mejía, Juan Fernando, Kacprzyk, Janusz, Series Editor, Rivera, Gilberto, editor, Cruz-Reyes, Laura, editor, Dorronsoro, Bernabé, editor, and Rosete, Alejandro, editor

Published
2023
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2. Innovative Curved-Tip Reactor for Non-Thermal Plasma and Plasma-Treated Water Generation: Synergistic Impact Comparison with Sodium Hypochlorite in Dental Root Canal Disinfection

Author

Arguello-Sánchez, Raúl, primary, López-Callejas, Régulo, additional, Rodríguez-Méndez, Benjamín Gonzalo, additional, Scougall-Vilchis, Rogelio, additional, Velázquez-Enríquez, Ulises, additional, Mercado-Cabrera, Antonio, additional, Peña-Eguiluz, Rosendo, additional, Valencia-Alvarado, Raúl, additional, and Medina-Solís, Carlo Eduardo, additional

Published
2023
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4. Harnessing Non-Thermal Plasma to Supercharge Recovery in Abdominal Surgeries: A Pilot Study.

Author

Rodríguez-Méndez, Benjamín G., López-Callejas, Régulo, Mercado-Cabrera, Antonio, Peña-Eguiluz, Rosendo, Valencia-Alvarado, Raúl, Betancourt-Ángeles, Mario, Berrones-Stringel, Guillermo, and Jaramillo-Martínez, César

Subjects
NON-thermal plasmas, ABDOMINAL surgery, SURGICAL site, WOUND healing, PILOT projects, SUTURING
Abstract

(1) Background: This study aims to evaluate the efficacy and safety of non-thermal plasma (NTP) therapy in accelerating wound healing in patients who have undergone laparoscopic and open surgeries. (2) Methods: NTP was applied using a needle-type reactor with an irradiance of 0.5 W/cm2 on the surgical wounds of fifty patients after obtaining informed consent. Three NTP treatments, each lasting three minutes, were administered hourly. (3) Results: The pilot study showed that NTP-treated surgical wounds healed completely without any signs of infection, dehiscence, pain, or itching. Notably, patients reported minimal pain after the NTP treatment. Visual assessments conducted twenty-four hours after surgery revealed no redness or fluid discharge. Comparisons with traditionally sutured wounds indicated that NTP-treated wounds healed at a rate equivalent to seven days. (4) Conclusions: The application of NTP in laparoscopic and open wounds proved safe and effective, expediting the wound healing process and eliminating clinical risks post-surgery. Significantly, NTP facilitated a healing rate within twenty-four hours, equivalent to seven days for suture-treated wounds, significantly reducing the hospitalization time to a single day. These findings highlight the potential of NTP to be a transformative approach for promoting postoperative recovery. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Healing of Recurrent Aphthous Stomatitis by Non-Thermal Plasma: Pilot Study

Author

Ibáñez-Mancera, Norma Guadalupe, primary, López-Callejas, Régulo, additional, Toral-Rizo, Víctor Hugo, additional, Rodríguez-Méndez, Benjamín Gonzalo, additional, Lara-Carrillo, Edith, additional, Peña-Eguiluz, Rosendo, additional, do Amaral, Regiane Cristina, additional, Mercado-Cabrera, Antonio, additional, and Valencia-Alvarado, Raúl, additional

Published
2023
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7. Non-thermal plasma wound healing after removal of a neck tumor in a patient with HIV: A case report

Author

Peña Eguiluz, Rosendo, primary, López-Callejas, Régulo, additional, González-Arciniega, Erasmo, additional, Rodríguez-Méndez, Benjamín Gonzalo, additional, Mercado-Cabrera, Antonio, additional, Guakil-Haber, Alberto, additional, Kuri García, Anuar, additional, Espinosa Mancilla, Angélica Eloisa, additional, and Valencia-Alvarado, Raúl, additional

Published
2022
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8. Development and Characterization of a Non-Thermal Plasma Source for Therapeutic Treatments

Author

Pena-Eguiluz, Rosendo, primary, Serment-Guerrero, Jorge H., additional, Azorin-Vega, Erika P., additional, Mercado-Cabrera, Antonio, additional, Flores-Fuentes, Allan A., additional, Jaramillo-Sierra, Betsabeth, additional, Hernandez-Arias, Alma N., additional, Giron-Romero, Karina, additional, Lopez-Callejas, Regulo, additional, Rodriguez-Mendez, Benjamin G., additional, and Valencia-Alvarado, Raul, additional

Published
2021
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9. Electrical model of an atmospheric pressure dielectric barrier discharge cell

Author

Flores-Fuentes, Allan, Pena-Eguiluz, Rosendo, Lopez-Callejas, Regulo, Mercado-Cabrera, Antonio, Valencia-Alvarado, Raul, Barocio-Delgado, Samuel, and de la Piedad-Beneitez, Anibal

Subjects
Atmospheric pressure -- Research, Electric circuits -- Analysis, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

This paper presents a model of the typical dielectric barrier plasma discharge at atmospheric pressure, structured as an equivalent electric circuit whose elements are identified with, and deducted from, the main influential variables of the process, namely, the applied gas, the geometry of the reactor, the breakdown parameters, as well as the power supply associated to the dielectric barrier discharge cell. Considering a parallel-plate reactor and a high-voltage sinusoidal power supply, an electrical comprehensive Simulink/MATLAB model has been developed in order to reveal the interaction between these two elements. The main components of this discharge model are as follows: 1) a double dielectric capacitance; 2) a voltage-controlled current source; and 3) a gas capacitance associated to the ionized gas. A sinusoidal voltage of up to 15 kV peak to peak at frequencies of 12.5 and 47 kHz has been applied to the discharge electrodes. The electrical model is based on the power law proposed by Roth, which defines the V-I behavior during the discharge startup. A series of simulations has been carried out in order to estimate the total current and voltage consumed during each discharge and to identify those parameters which are not measurable during the process. Finally, both the experimental and simulated voltage and current results in helium, argon, and nitrogen, as well as their Q-V graphics, are shown, and a comparison between them is discussed. Index Terms--Dielectric barrier discharge (DBD), voltage-controlled current source, voltage source inverter (VSI).

Published
2009

11. Instrumentation for pulsed corona discharge generation applied to water

Author

Rodriguez-Mendez, Benjamin Gonzalo, Lopez-Callejas, Regulo, Pena-Eguiluz, Rosendo, Mercado-Cabrera, Antonio, Alvarado, Raul Valencia, Barocio, Samuel R., de la Piedad-Beneitez, Anibal, Benitez-Read, Jorge S., and Pacheco-Sotelo, Joel O.

Subjects
Breakdown (Electricity) -- Evaluation, Plasma generators -- Usage, Corona (Electricity) -- Properties, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

In this paper, we present a model (which is structured as an equivalent electric circuit whose elements are identified and deducted from the nature of the medium, the ionization and expansion process of the streamers that convey the pre-breakdown current, and the energy associated to the electric breakdown in water) and a simulation of a pulsed corona discharge (PCD). Considering this, a coaxial reactor and an inexpensive and compact high-voltage pulsed-power supply (PPS) system were designed and constructed with the purpose of carrying out the PCD experimentally. The simulation results enable the prediction of the behavior of the discharge. The coaxial reactor is constituted by a cylindrical chamber and a straight central rod. The PPS operates within the 100-2000-Hz repetition rate and 0-30-kV amplitude ranges. All the system has been tested, and the first electrical results, voltage, and current waveforms, are presented. Index Terms--Electric breakdown, plasma applications, plasma generation, power system simulation.

Published
2008

12. Stacked Class-E Amplifier

Author

Pena-Eguiluz, Rosendo, primary, Flores-Fuentes, Allan A., additional, Mercado-Cabrera, Antonio, additional, Lopez-Callejas, Regulo, additional, Rodriguez-Mendez, Benjamin G., additional, Valencia-Alvarado, Raul, additional, Jaramillo-Sierra, Bethsabet, additional, and Hernandez-Arias, Alma N., additional

Published
2020
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13. PIII for Aluminium Surface Modification

Author

Lopez-Callejas, Regulo, primary, Valencia-Alvarado, Raul, additional, Eduardo, Arturo, additional, Pena-Eguiluz, Rosendo, additional, Mercado-Cabrera, Antonio, additional, R., Samuel, additional, Gonzalo, Benjamin, additional, and la Piedad-Beneitez, Anibal de, additional

Published
2011
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14. Acute Neck Radiodermatitis Treated by Nonthermal Plasma Therapy: Case Report

Author

Pena-Eguiluz, Rosendo, Lopez-Callejas, Regulo, Gonzalez-Mendoza, Berenice, Mercado-Cabrera, Antonio, Rodriguez-Mendez, Benjamin G., and Valencia-Alvarado, Raul

Abstract

Reactive species produced by nonthermal plasma (NTP) at atmospheric pressure have proven to be excellent chemical and biochemical agents that promote the healing process by an adequate NTP spread over superficial biologic tissues. In this reported case, a patient suffering acute radiodermatitis in the neck was treated with NTP therapy for the healing process and preventing infection. Five NTP treatments were spread over damaged skin situated at the erythema for 5 min each. NTP was applied, maintaining 5–10 mm concerning the epidermal surface. Since the first NTP exposition patient manifested considerably downgrading of pain and itching. These diminished sensations are related to the redness intensity decrease of the neck erythema. In this case, NTP therapy demonstrated its effectiveness and safety at healing a patient had suffering acute radiation dermatitis in the neck without seroma formation, bleeding, or infection; and without utilizing other dermocosmetic skincare products.

Published
2022
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15. Inactivation ofBacillus Subtilisin Water by Direct and Indirect Nonthermal Plasma Treatments

Author

Rodriguez-Mendez, Benjamin G., primary, Hernandez-Arias, Alma Neli, additional, Lopez-Callejas, Regulo, additional, Mercado-Cabrera, Antonio, additional, Jaramillo-Sierra, Bethsabet, additional, Pena-Eguiluz, Rosendo, additional, Valencia-Alvarado, Raul, additional, Munoz-Castro, Arturo Eduardo, additional, Falcon-Barcenas, Thelma, additional, and Alcantara-Diaz, David, additional

Published
2019
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18. Treatment in the healing of burns with a cold plasma source

Author

Betancourt-Ángeles, Mario, Peña-Eguiluz, Rosendo, López-Callejas, Régulo, Domínguez-Cadena, Nicasio Alberto, Mercado-Cabrera, Antonio, Muñoz-Infante, Jorge, Rodríguez-Méndez, Benjamín Gonzalo, Valencia-Alvarado, Raúl, and Moreno-Tapia, José Alberto

Subjects
Case Report
Abstract

A cold plasma produced with helium gas was applied to two second-degree burns produced with boiling oil. These burns were located on a thigh and a shin of a 59-years-old male person. After the first treatment as benefit the patient neither presented itching nor pain and, after the second treatment, the patient presented new tissue. This result opens the possibilities of the application of a cold plasma source to health burns.

Published
2017

19. Alternative method for healing the diabetic foot by means of a plasma needle

Author

López-Callejas, Régulo, primary, Peña-Eguiluz, Rosendo, additional, Valencia-Alvarado, Raúl, additional, Mercado-Cabrera, Antonio, additional, Rodríguez-Méndez, Benjamín G., additional, Serment-Guerrero, Jorge H., additional, Cabral-Prieto, Agustín, additional, González-Garduño, A. Concepción, additional, Domínguez-Cadena, N. Alberto, additional, Muñoz-Infante, Jorge, additional, and Betancourt-Ángeles, Mario, additional

Published
2018
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22. Atmospheric-pressure dielectric barrier discharge generation by a full-bridge flying capacitor multilevel inverter

Author

PEÑA-EGUILUZ, Rosendo, primary, LÓPEZ-FERNÁNDEZ, José A, additional, MERCADO-CABRERA, Antonio, additional, JARAMILLO-SIERRA, Bethsabet, additional, LÓPEZ-CALLEJAS, Régulo, additional, RODRÍGUEZ-MÉNDEZ, Benjamín, additional, VALENCIA-ALVARADO, Raúl, additional, FLORES-FUENTES, Allan A, additional, and MUÑOZ-CASTRO, Arturo E, additional

Published
2017
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24. Inactivation of Bacillus Subtilis in Water by Direct and Indirect Nonthermal Plasma Treatments.

Author

Rodriguez-Mendez, Benjamin G., Hernandez-Arias, Alma Neli, Lopez-Callejas, Regulo, Mercado-Cabrera, Antonio, Jaramillo-Sierra, Bethsabet, Pena-Eguiluz, Rosendo, Valencia-Alvarado, Raul, Munoz-Castro, Arturo Eduardo, Falcon-Barcenas, Thelma, and Alcantara-Diaz, David

Subjects
NON-thermal plasmas, BACILLUS subtilis, THERAPEUTICS, BACTERIAL inactivation, BACTERICIDAL action, PEPTIDOGLYCANS
Abstract

In this paper, we present the inactivation study of bacteria suspended in water by atmospheric pressure nonthermal plasma generated by pulsed dielectric barrier discharges (PDBD) in a wire-cylinder reactor. The experiments were carried out with Gram-positive Bacillus subtilis bacteria at an initial concentration of $1 \times 10^{6}\,\,\text {cells}\cdot \text {mL}^{-1}$. Bacterial inactivation was analyzed comparing two different types of treatments: bacteria in contact with distilled water previously exposed to plasma (indirect plasma treatment) and bacterial suspension in direct contact with plasma (direct plasma treatment). Plate count, microscopy, and spectrophotometry methods were used to study the bactericidal action of the PDBD. The obtained results indicated that both treatments eliminate bacteria, where direct plasma treatment led to a faster biodecontamination with a 4.87 – log10 reduction in 10 min than 2.36 – log10 reduction achieved with indirect plasma treatment. Microscopic observations reveal that treated bacteria were damaged suggesting the disruption of their cell walls during the direct plasma treatment. [ABSTRACT FROM AUTHOR]

Published
2019
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25. PIII for Aluminium Surface Modification

Author

López-Callejas, Régulo, Valencia-Alvarado, Raúl, Muñoz-Castro, Arturo Eduardo, Pena-Eguiluz, Rosendo, Mercado-Cabrera, Antonio, Barocio, Samuel R., and Piedad-Beneitez, Benjamín Gonzalo Rodríguez-Méndez and Anibal de la

Published
2011

27. Accelerated Mice Skin Acute Wound Healing In Vivo by Combined Treatment of Argon and Helium Plasma Needle

Author

García-Alcantara, Elizabeth, primary, López-Callejas, Régulo, additional, Morales-Ramírez, Pedro R., additional, Peña-Eguiluz, Rosendo, additional, Fajardo-Muñoz, Raúl, additional, Mercado-Cabrera, Antonio, additional, Barocio, Samuel R., additional, Valencia-Alvarado, Raúl, additional, Rodríguez-Méndez, Benjamín G., additional, Muñoz-Castro, Arturo E., additional, Piedad-Beneitez, Anibal de la, additional, and Rojas-Olmedo, Israel A., additional

Published
2013
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28. Gas Flow Effect on E. coli and B. subtilis Bacteria Inactivation in Water Using a Pulsed Dielectric Barrier Discharge

Author

Rodriguez-Mendez, Benjamín Gonzalo, primary, Hernandez-Arias, Alma Neli, additional, Lopez-Callejas, Régulo, additional, Valencia-Alvarado, Raúl, additional, Mercado-Cabrera, Antonio, additional, Pena-Eguiluz, Rosendo, additional, Barocio-Delgado, Samuel Roberto, additional, Munoz-Castro, Arturo Eduardo, additional, and de la Piedad-Beneitez, Aníbal, additional

Published
2013
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29. Analysis and Application of a Parallel E-Class Amplifier as RF Plasma Source

Author

Pena-Eguiluz, Rosendo, primary, Perez-Martinez, José Arturo, additional, Lopez-Callejas, Régulo, additional, Mercado-Cabrera, Antonio, additional, Solis-Pacheco, Josué, additional, Aguilar-Uscanga, Blanca, additional, Munoz-Castro, Arturo E., additional, Valenc, Raúl, additional, Barocio-Delgado, Samuel R., additional, Rodriguez-Mendez, Benjamín G., additional, and de la Piedad-Beneitez, Aníbal, additional

Published
2010
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31. Assessing cellular DNA damage from the helium plasma needle.

Author

Morales-Ramirez, Pedro, Cruz Vallejo, Virginia, Pena-Eguiluz, Rosendo, Lopez-Callejas, Regulo, Valencia-Alvarado, Raul, Mercado-Cabrera, Antonio, Barocio, S. R., Munoz-Castro, Arturo Eduardo, and Rodriguez-Mendez, Benjamin Gonzalo

Abstract

The aim of the presents study is determining the DNA damage by cell exposure to atmospheric pressure non-thermal plasma. Mouse leukocytes embedded in agarose have been subjected to plasma at two different distances from a helium plasma needle outlet and during three different exposure periods. The possible damage has been assessed by means of a single cell gel electrophoresis assay. The results indicated that, at 0.1 cm from the plasma needle, the exposure caused complete DNA fragmentation, confirmed by the presents of so-called ‘clouds’. With 0.5 cm between the plasma outlet and the slide surface samples presented damages closely proportional to the treatments periods in terms of tail intensity, tail moment and ‘cloud’ frequency. This enables us to conclude that, within the parametric values of the experiment, a plasma needle can cause DNA damage in mice leukocites proportionally to the exposure periods‥ [ABSTRACT FROM PUBLISHER]

Published
2012
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32. Treatment in the healing of burns with a cold plasma source.

Author

Betancourt-Ángeles M, Peña-Eguiluz R, López-Callejas R, Domínguez-Cadena NA, Mercado-Cabrera A, Muñoz-Infante J, Rodríguez-Méndez BG, Valencia-Alvarado R, and Moreno-Tapia JA

Abstract

A cold plasma produced with helium gas was applied to two second-degree burns produced with boiling oil. These burns were located on a thigh and a shin of a 59-years-old male person. After the first treatment as benefit the patient neither presented itching nor pain and, after the second treatment, the patient presented new tissue. This result opens the possibilities of the application of a cold plasma source to health burns., Competing Interests: None.

Published
2017

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