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Gold nanoparticles: a promising next-generation tool for breast cancer photothe...

Ferreira-Gonçalves, Tânia; Costa, Eduardo; Coelho, João; Gaspar, Maria Manuela; Ascensão, Lia; Ferreira-Santos, Pedro; Faísca, Pedro; Figueiredo, Isabel

AuNPs show suitable mean sizes and maximum absorbance peaks to be used for PTT when locally administered. AuNPs show no toxicity either in breast cancer cell lines or red blood cells. Laser irradiation proved to be safe when applied alone. Combining EGF-conjugated AuNPs with laser irradiation resulted in a reduction of 33% in MCF-7 cells viability. The animal model was successfully developed (all animals develo...



Pluronic® F127 Hydrogel Containing Silver Nanoparticles in Skin Burn Regenerati...

Francisco, Pedro; Neves Amaral, Mariana; Neves, Afonso; Ferreira-Gonçalves, Tânia; Viana, Ana S.; Catarino, José; Faísca, Pedro; Simões, Sandra

Presently, skin burns are considered one of the main public health problems and lack therapeutic options. In recent years, silver nanoparticles (AgNPs) have been widely studied, playing an increasingly important role in wound healing due to their antibacterial activity. This work is focused on the production and characterization of AgNPs loaded in a Pluronic® F127 hydrogel, as well as assessing its antimicrobia...


Biological Thermal Performance of Organic and Inorganic Aerogels as Patches for...

Ferreira-Gonçalves, Tânia; Iglesias-Mejuto, Ana; Linhares, Teresa; Coelho, João M. P.; Vieira, Pedro; Faísca, Pedro; Catarino, José; Ferreira, David

Aerogels are materials with unique properties, among which are low density and thermal conductivity. They are also known for their exquisite biocompatibility and biodegradability. All these features make them attractive for biomedical applications, such as their potential use in photothermal therapy (PTT). This technique is, yet, still associated with undesirable effects on surrounding tissues which emphasizes ...


The Role of Rosmarinic Acid on the Bioproduction of Gold Nanoparticles as Part ...

Ferreira-Gonçalves, Tânia; Gaspar, Maria Manuela; Coelho, João M. P.; Marques, Vanda; Viana, Ana S.; Ascensão, Lia; Carvalho, Lina

Breast cancer is a high-burden malignancy for society, whose impact boosts a continuous search for novel diagnostic and therapeutic tools. Among the recent therapeutic approaches, photothermal therapy (PTT), which causes tumor cell death by hyperthermia after being irradiated with a light source, represents a high-potential strategy. Furthermore, the effectiveness of PTT can be improved by combining near infrar...


The Role of Rosmarinic Acid on the Bioproduction of Gold Nanoparticles as Part ...

Ferreira-Gonçalves, Tânia; Gaspar, Maria Manuela; Coelho, João M. P.; Marques, Vanda; Viana, Ana S.; Ascensão, Lia; Carvalho, Lina

Breast cancer is a high-burden malignancy for society, whose impact boosts a continuous search for novel diagnostic and therapeutic tools. Among the recent therapeutic approaches, photothermal therapy (PTT), which causes tumor cell death by hyperthermia after being irradiated with a light source, represents a high-potential strategy. Furthermore, the effectiveness of PTT can be improved by combining near infrar...


Proof-of-Concept Study of Multifunctional Hybrid Nanoparticle System Combined w...

Lopes, Joana; Ferreira-Gonçalves, Tânia; Figueiredo, Isabel V.; Rodrigues, Cecília M. P.; Ferreira, Hugo; Ferreira, David; Viana, Ana S.; Faísca, Pedro

The global impact of cancer emphasizes the importance of developing innovative, effective and minimally invasive therapies. In the context of superficial cancers, the development of a multifunctional nanoparticle-based system and its in vitro and in vivo safety and efficacy characterization are, herein, proposed as a proof-of-concept. This multifunctional system consists of gold nanoparticles coated with hyalur...


Proof-of-Concept Study of Multifunctional Hybrid Nanoparticle System Combined w...

Lopes, Joana; Ferreira-Gonçalves, Tânia; Figueiredo, Isabel; Rodrigues, Cecília; Ferreira, Hugo; Ferreira, David; Viana, Ana; Faísca, Pedro

Abstract: The global impact of cancer emphasizes the importance of developing innovative, effective and minimally invasive therapies. In the context of superficial cancers, the development of a multifunctional nanoparticle-based system and its in vitro and in vivo safety and efficacy characterization are, herein, proposed as a proof-of-concept. This multifunctional system consists of gold nanoparticles coated w...


Proof-of-Concept Study of Multifunctional Hybrid Nanoparticle System Combined w...

Lopes, Joana; Ferreira-Gonçalves, Tânia; Figueiredo, Isabel V.; Rodrigues, Cecília M. P.; Ferreira, Hugo; Ferreira, David; Viana, Ana S.; Faísca, Pedro

The global impact of cancer emphasizes the importance of developing innovative, effective and minimally invasive therapies. In the context of superficial cancers, the development of a multifunctional nanoparticle-based system and its in vitro and in vivo safety and efficacy characterization are, herein, proposed as a proof-of-concept. This multifunctional system consists of gold nanoparticles coated with hyalur...


Safety and efficacy assessment of aerogels for biomedical applications

Ferreira-Gonçalves, Tânia; Constantin, Carolina; Neagu, Monica; Reis, Catarina Pinto; Sabri, Firouzeh; Simón-Vázquez, Rosana

The unique physicochemical properties of aerogels have made them an attractive class of materials for biomedical applications such as drug delivery, regenerative medicine, and wound healing. Their low density, high porosity, and ability to regulate the pore structure makes aerogels ideal nano/micro-structures for loading of drugs and active biomolecules. As a result of this, the number of in vitro and in vivo s...


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