Results 51 to 60 of about 3,376 (178)

Gold–Thiopurine and Thioguanine Platforms for Chemotherapy and Photodynamic Therapy

ChemistryEurope, Volume 4, Issue 3, March 2026.
Gold(I)–thiopurine complexes bearing chromophores and phosphine or N‐heterocyclic carbene ligands were developed as multimodal chemo‐photodynamic agents. They show good stability, moderate lipophilicity, and tunable photoresponse. 6‐TG enhances dark cytotoxicity, 6‐MP improves phototoxicity, and PPh3/NBD provide the most efficient photoactivation ...
Laura Agulló, Juan Carlos Pérez‐Sánchez, María Gil‐Moles, M. Concepción Gimeno   +3 more
wiley   +1 more source

Aspectos anatômicos da cultura in vitro da Araucaria angustifolia. I. Organização

Acta Biológica Paranaense, 1992
Foram feitos estudos anatômicos sobre a organização e desenvolvimento dos meristemas axilares ortotrópicos de segmentos caulinares de Araucaria angustifolia cultivados in vitro, em meio básico de Murashigue & Skoog , sem reguladores de crescimento.
Cecília Iritani, Flávio Zanette, Jovita Cinslinki   +2 more
openaire   +2 more sources

Biosynthesis of Silver Nanoparticles Using Black Pepper (Piper nigrum) Seed Extract and Evaluation of Their Cytotoxicity

Chemistry &Biodiversity, Volume 23, Issue 2, February 2026.
This study reports the green biosynthesis of piperine‐functionalized silver nanoparticles from Piper nigrum seed extract, followed by comprehensive physicochemical characterization and in vitro cytotoxic evaluation. The results confirm successful nanocomposite formation and demonstrate a marked enhancement of cytotoxic activity against gastric cancer ...
Nylton Ferreira Maciel, Gleice VasconcelosPereira do Lago, Glauce Vasconcelos da Silva Pereira, Ingryd Nayara de Farias Ramos, Aline Costa Bastos, Igor Alexandre Rocha Barreto, Nathiel Sarges Moraes, Marcos NazarenoLauné dos Santos, João Augusto Pereira da Rocha, Alencar Kolinski Machado, Waldomiro Gomes Paschoal Junior, Marcio Marcelo da Silva Pessoa, Maria de Nazaré Maciel Uesugi, André Salim Khayat, Jorddy Neves Cruz, José de ArimatéiaRodrigues do Rêgo, Maria Regina Sarkis Peixoto Joele, Davi do Socorro Barros Brasil   +17 more
wiley   +1 more source

Embriogênese somática e regeneração de plantas a partir de embrião maduro de aveia Somatic embryogenesis and plant regeneration derived from mature embryos of oat

Pesquisa Agropecuária Brasileira, 2002
Calo embriogênico tem sido o tecido-alvo mais utilizado para transformação genética de cereais. O objetivo deste trabalho foi investigar o estabelecimento de calos embriogênicos e a regeneração de plantas in vitro a partir de embriões maduros de ...
Caren Regina Cavichioli Lamb, Sandra Cristina Kothe Milach, Giancarlo Pasquali, Raquel Santiago Barro   +3 more
doaj   +1 more source

Polysaccharide‐Coated ETCA Nanoparticles Containing the Methoxyl Substituted Indole‐Thiazole Derivative and Their Antiproliferative Activity in Breast Cancer Cells

Journal of Applied Polymer Science, Volume 143, Issue 4, January 20, 2026.
ABSTRACT Indole and thiazole derivatives have garnered significant attention due to their potent antitumor activities. Encapsulation of such derivatives into polymeric nanoparticles offers several advantages, including improved molecular stability and targeted delivery to tumor sites, thereby enhancing their antineoplastic potential.
José Cleberson Santos Soares, Iago Dillion Lima Cavalcanti, Iranildo José da Cruz‐Filho, Mariane Cajubá de Britto Lira Nogueira, Maria do Carmo Alves de Lima   +4 more
wiley   +1 more source

CALOGÊNESE E RIZOGÊNESE EM EXPLANTES DE MOGNO (Swietenia macrophylla King) CULTIVADOS IN VITRO [PDF]

Ciência Florestal, 2004
A exploração de árvores tropicais realizada de forma indiscriminada, buscando espécies de alto valor econômico, tem levado várias espécies, como o mogno (Swietenia macrophylla King), ao perigo de extinção.
Marguerite Quoirin, Silvana Cruz da Rocha   +1 more
doaj  

Selective Laser Sintering 3D Printing of Drug‐Loaded Intravitreal Implants

Advanced Functional Materials, Volume 36, Issue 4, 12 January 2026.
Selective laser sintering enables the fabrication of biodegradable and biocompatible intravitreal implants with tunable microstructures for sustained drug delivery. By modulating laser scanning speed, the polymer matrix architecture is engineered to control the release kinetics of dexamethasone and riboflavin over several months. This approach offers a
Iria Seoane‐Viaño, Carlos Bendicho‐Lavilla, Haya Alfassam, Bárbara Blanco‐Fernández, Abdul W. Basit, Francisco J. Otero‐Espinar   +5 more
wiley   +1 more source

Avaliação do crescimento de plantas micropropagadas do porta-enxerto de macieira Marubakaido microbiolizadas com Pantoea agglomerans

Agropecuária Catarinense, 2021
O objetivo do trabalho foi avaliar o efeito da bactéria Pantoea agglomerans sobre o crescimento de plantas micropropagadas do porta-enxerto de macieira Marubakaido.
Renato Luís Vieira, Leandro Luiz Marcuzzo, Giuliano Dragone Sabbatino Calmont de Andrade   +2 more
doaj  

Micropropagation and callogenesis of Curcuma zedoaria Roscoe

Scientia Agricola, 2004
Curcuma zedoaria Roscoe (zedoary) is a medicinal properties-bearing Zingiberaceae from which rhizomes are commercially exploited. The objective of this work was to establish an in vitro protocol for micropropagation and callogenesis of Curcuma zedoaria ...
Jeanette Inamine Miachir, Vera Lúcia Moretti Romani, Antônio Francisco de Campos Amaral, Marcia Ometto Mello, Otto Jesu Crocomo, Murilo Melo   +5 more
doaj   +1 more source

Bi‐Functional Topospecific Nanoparticles to Promote Immune‐Tumor Cell Engagement as A New Immunotherapeutic Strategy

Advanced Materials, Volume 38, Issue 2, 8 January 2026.
A Janus‐engineered nanoplatform (J‐pHLIP‐PD1), featuring separate tumor‐ and immune‐targeting faces, bridges melanoma cells and cytotoxic T lymphocytes using toposelective pHLIP and anti‐PD‐1 presentation. This strategy elicits robust antitumor responses, promotes immunogenic tumor cell death, suppresses lung metastasis in vivo, and provides a modular,
Alba Ortuño‐Bernal, Sandra Clara‐Trujillo, Elena Lucena‐Sánchez, Francisco J. Hicke, Andrea Escudero, Sandra Pradana‐López, Nelia Jiménez‐Alduan, Paula Díez, Alba García‐Fernández, Ramón Martínez‐Máñez   +9 more
wiley   +1 more source