Results 61 to 70 of about 3,380,404 (320)

A general perspective of the characterization and quantification of nanoparticles: Imaging, spectroscopic, and separation techniques [PDF]

, 2014
This article gives an overview of the different techniques used to identify, characterize, and quantify engineered nanoparticles (ENPs). The state-of-the-art of the field is summarized, and the different characterization techniques have been grouped ...
Anderson de la LLana, S., Anderson, I.S., Capitán Vallvey, L. F., Cecchini, R., Costa Fernández, J.M., Domínguez Meister, Santiago, Lapresta Fernández, A., Marco, María Pilar, Moreno Bondi, M.C., Salinas Castillo, A., Sánchez López, J.C.   +10 more
core   +3 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Enhancing the Photovoltaic Performance of Perovskite Solar Cells Using Plasmonic Au@Pt@Au Core-Shell Nanoparticles

Nanomaterials, 2019
Au@Pt@Au core-shell nanoparticles, synthesized through chemical reduction, are utilized to improve the photoelectric performance of perovskite solar cells (PSCs) in which carbon films are used as the counter electrode, and the hole-transporting layer is ...
Bao Wang, Xiangyu Zhu, Shuhan Li, Mengwei Chen, Nan Liu, Hao Yang, Meiqing Ran, Haifei Lu, Yingping Yang   +8 more
doaj   +1 more source

Wired-Enzyme Core−Shell Au Nanoparticle Biosensor

Journal of the American Chemical Society, 2008
We report a fully integrated core-shell nanoparticle system responsive to glucose. The system is comprised of self-assembled glucose oxidase and an osmium molecular wire on core-shell Au nanoparticles. Characterization of the functional nanoparticles by spectroscopy, quartz crystal microbalance and electrochemical techniques has shown that the ...
Scodeller, Pablo David, Flexer, Victoria, Szamocki, R., Calvo, Ernesto Julio, Tognalli, Nicolas Gerardo, Troiani, Horacio Esteban, Fainstein, Alejandro   +6 more
openaire   +3 more sources

Self-assembly of noble metal nanoparticles into sub-100 nm colloidosomes with collective optical and catalytic properties. [PDF]

, 2017
Self-assembly at the nanoscale represents a powerful tool for creating materials with new structures and intriguing collective properties. Here, we report a novel strategy to synthesize nanoscale colloidosomes of noble metals by assembling primary metal ...
Fan, Qikui, Gao, Chuanbo, Sha, Xiao, Yin, Yadong, Zhang, Jie, Zhang, Lei, Zhong, Ping   +6 more
core   +2 more sources

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Biosynthesis and stabilization of Au and Au–Ag alloy nanoparticles by fungus, Fusarium semitectum

Science and Technology of Advanced Materials, 2008
Crystallized and spherical-shaped Au and Au–Ag alloy nanoparticles have been synthesized and stabilized using a fungus, F . semitectum in an aqueous system.
Balaji Dasaratrao Sawle, Basavaraja Salimath, Raghunandan Deshpande, Mahesh Dhondojirao Bedre, Belawadi Krishnamurthy Prabhakar and Abbaraju Venkataraman
doaj  

Biosynthesis of Gold Nanoparticles Using Aqueous Extract of Stem of Periploca Aphylla Plant [PDF]

Journal of Nanostructures, 2018
This present work reports an ecofriendly approach for the synthesis of gold nanoparticles (Au NPs) using aqueous stem extract of Periploca aphylla as a reducing and stabilizing agent, has been discussed. This approach is simple, cost-effective and stable
Massoud Kaykhaii, Nafiseh Haghpazir, Jafar Walisadeh   +2 more
doaj   +1 more source

Sustainable bioplastics manufacturing from renewable sources

FEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto, Marika Avitabile, Michela Famiglietti, Talayeh Kordjazi, Marzieh Moosavi‐Nasab, Odile F. Restaino, Loredana Mariniello   +6 more
wiley   +1 more source

Femtosecond Spectroscopy of Au Hot-Electron Injection into TiO₂: Evidence for Au/TiO₂ Plasmon Photocatalysis by Bactericidal Au Ions and Related Phenomena

Nanomaterials, 2019
In the present work, we provide evidence for visible light irradiation of the Au/TiO2 nanoparticles’ surface plasmon resonance band (SPR) leading to electron injection from the Au nanoparticles to the conduction band of TiO2.
Marina Radzig, Olga Koksharova, Inessa Khmel, Vladimir Ivanov, Khursand Yorov, John Kiwi, Sami Rtimi, Elina Tastekova, Arseny Aybush, Victor Nadtochenko   +9 more
doaj   +1 more source