Search Results - "Rocha, Marcio S"
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Caffeine Enhances the Toxicity of Platinum-Based Drugs at the Molecular Level Even Outside of the Intracellular Environment: A Single-Molecule Force Spectroscopy Study
Published in The journal of physical chemistry. B (05-05-2022)“…It is well reported in the literature that caffeine, the most consumed alkaloid around the world, enhances the anticancer effects of the drug cisplatin by…”
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Mechanism of DNA Intercalation by Chloroquine Provides Insights into Toxicity
Published in International journal of molecular sciences (01-02-2024)“…Chloroquine has been used as a potent antimalarial, anticancer drug, and prophylactic. While chloroquine is known to interact with DNA, the details of…”
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New Insights into the Mechanism of Action of the Drug Chloroquine: Direct Interaction with DNA and Cytotoxicity
Published in The journal of physical chemistry. B (19-05-2022)“…Chloroquine (CLQ) and hydroxychloroquine (HCLQ) are compounds largely employed in the treatment of various human diseases for decades. Nevertheless, a number…”
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Revisiting the neighbor exclusion model and its applications
Published in Biopolymers (01-01-2010)“…We review the neighbor exclusion model and some of its applications to analyze the binding data of DNA‐ligand complexes. We revisit the closed form of the…”
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5
Optical Trapping and Manipulation of Superparamagnetic Beads Using Annular-Shaped Beams
Published in Methods and protocols (20-11-2018)“…We propose an optical tweezers setup based on an annular-shaped laser beam that is efficient to trap 2.8 μ m-diameter superparamagnetic particles. The optical…”
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New antineoplastic agent based on a dibenzoylmethane derivative: Cytotoxic effect and direct interaction with DNA
Published in Biophysical chemistry (01-08-2018)“…Melanoma accounts for only 4% of all skin cancers but is among the most lethal cutaneous neoplasms. Dacarbazine is the drug of choice for the treatment of…”
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Use of Organic Semiconductors as Handles for Optical Tweezers Experiments: Trapping and Manipulating Polyaniline (PANI) Microparticles
Published in ACS applied polymer materials (09-06-2023)“…Here we propose the use of the organic semiconductor polyaniline (PANI) for the preparation of spherical-shaped microparticles to serve as handles in optical…”
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Normal and tumoral melanocytes exhibit q-Gaussian random search patterns
Published in PloS one (09-09-2014)“…In multicellular organisms, cell motility is central in all morphogenetic processes, tissue maintenance, wound healing and immune surveillance. Hence, failures…”
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Isolation, characterization and evaluation of antimicrobial and cytotoxic activity of estragole, obtained from the essential oil of Croton zehntneri (Euphorbiaceae)
Published in Anais da Academia Brasileira de Ciências (01-03-2015)“…Croton zehntneri (Euphorbiaceae) is a native aromatic plant from Northeast region of Brazil. The monoterpenoid estragole (ESL) has been isolated by classical…”
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Gas Chromatography-Triple Quadrupole Mass Spectrometry Analysis and Vasorelaxant Effect of Essential Oil from Protium heptaphyllum (Aubl.) March.
Published in BioMed research international (01-01-2017)“…The Protium heptaphyllum species, also known as Almécega, produces an oily resin, used in folk medicine as an analgesic and anti-inflammatory agent, in…”
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Characterization of the inclusion complex of the essential oil of Lantana camara L. and β-cyclodextrin by vibrational spectroscopy, GC–MS, and X-ray diffraction
Published in Journal of inclusion phenomena and macrocyclic chemistry (01-06-2018)“…The genus Lantana is widely used in folk medicine because its essential oil has antibacterial, antifungal and repellent activity. However, its thermal…”
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New tools to study biophysical properties of single molecules and single cells
Published in Anais da Academia Brasileira de Ciências (01-03-2007)“…We present a review on two new tools to study biophysical properties of single molecules and single cells. A laser incident through a high numerical aperture…”
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Aliphatic and aromatic biomarkers of the Devonian source rocks from the Western Parnaíba Basin Brazil: Pimenteiras Formation
Published in Journal of South American earth sciences (01-04-2020)“…Previous geochemical studies carried out in the Parnaíba Basin (Brazil) show that natural gas deposits, whose source rock is formed by the shales of the…”
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Allyl Dibenzoylmethane Derivative: Antimelanoma Activity and Study of Its Molecular Mechanism of Interaction with DNA
Published in Journal of the Brazilian Chemical Society (01-07-2021)“…In this study, we assessed the cytotoxic effect of 1,3-diphenyl-2-allyl-1,3-propanedione (DPAP) on B16F10 and Tm5 melanoma cells and investigated its…”
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Theoretical and Experimental Investigations on Inclusion Complex β-Cyclodextrin and Sulcatone: A Cardiovascular Activity Evaluation
Published in Journal of the Brazilian Chemical Society (01-05-2020)“…In this paper, we have applied state-of-the-art technologies and new investigations were developed focusing on obtaining simple and inexpensive molecules for…”
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Inclusion complex of 2-phenylethanol in β-cyclodextrin: Preparation, characterization, computational study and evaluation of antinociceptive activity
Published in Journal of molecular structure (15-12-2024)“…•Preparation of an inclusion complex between β-cyclodextrin and 2-phenylethanol.•Characterization of inclusion complex using techniques such as XRD, TGA, DSC,…”
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Antioxidant Properties of Croton zehntneri Pax et Hoffm. Essential Oil and Its Inclusion Complex with β-Cyclodextrin Prepared by Spray Drying
Published in Journal of the Brazilian Chemical Society (2022)“…Croton zehntneri Pax et Hoffm. is a plant from Northeastern Brazil, whose main component of its essential oil is estragole. Its thermal instability and low…”
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Preparação e caracterização do complexo de inclusão do óleo essencial de Croton zehntneri com β-ciclodextrina
Published in Química Nova (2014)“…Croton zehntneri, a plant native to northeastern Brazil, is widely used in folk medicine to treat gastrointestinal problems and has rich essential oil content…”
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Obtaining Quantitative Parameters of DNA-Ligand Cooperative Binding from Persistence Length Measurements
Published in Biophysical journal (29-01-2013)Get full text
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Chemical constituents and evaluation of cytotoxic and antifungal activity of Lantana camara essential oils
Published in Revista brasileira de farmacognosia (01-12-2012)“…The essential oil (EO) of aerial parts of Lantana camara L., Verbenaceae, from Simões, Piaui, Northeast of Brazil, were obtained by hydrodistillation and…”
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