Measurement of the Giant Magnetoresistance Effect in Cobalt–Silver Magnetic Nanostructures: Nanowires

García-Torres, José; Gómez, Elvira; Vallés, E.

doi:10.1021/jp300119w

Cited by 10 publications

(3 citation statements)

References 27 publications

(38 reference statements)

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“…The top PLA layer was used to host the 1D metallic NWs within the nanometric-size pores, aiming to improve their functionality. Thus, copper was incorporated in the pores using electrodeposition (step 6) since it is a very versatile and easy technique for NMs preparation [30,31] followed by the formation of a silver layer onto Cu nanostructures through a simple redox reaction (step 7). The incorporation of these 1D NMs is expected to improve the sensibility of the biosensors not only due to the higher electrical conductivity of metals (e.g., Cu, Cu/Ag) but also to the higher surface area of the nanostructures.…”

Section: Resultsmentioning

confidence: 99%

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

et al. 2022

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We report a simple approach to fabricate free-standing perforated 2D nanomembranes hosting well-ordered 1D metallic nanostructures to obtain hybrid materials with nanostructured surfaces for flexible electronics. Nanomembranes are formed by alternatively depositing perforated poly(lactic acid) (PLA) and poly(3,4-ethylenedioxythiophene) layers. Copper metallic nanowires (NWs) were incorporated into the nanoperforations of the top PLA layer by electrodeposition and further coated with silver via a transmetallation reaction. The combination of 2D polymeric nanomembranes and aligned 1D metallic NWs allows merging the flexibility and conformability of the ultrathin soft polymeric nanomembranes with the good electrical properties of metals for biointegrated electronic devices. Thus, we were able to tailor the nanomembrane surface chemistry as it was corroborated by SEM, EDX, XPS, CV, EIS and contact angle. The obtained hybrid nanomembranes were flexible and conformable showing sensing capacity towards H2O2 with good linear concentration range (0.35–10 mM), sensitivity (120 µA cm−2 mM−1) and limit of detection (7 μm). Moreover, the membranes showed good stability, reproducibility and selectivity towards H2O2.

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Section: Resultsmentioning

confidence: 99%

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

et al. 2022

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“… Catalysis/electrocatalysis, biomedicine, sensors, coatings, composite components, and organic synthesis. Cost-effective [ 171 , 172 ] …”

Section: Synthesis and Functionalization Of Nanowiresmentioning

confidence: 99%

A comprehensive review on the biomedical frontiers of nanowire applications

Mim,

Hasan,

Chowdhury

et al. 2024

Heliyon

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“…Specifically, two different Ni/Au configurationshomogeneous core@shell and non-homogeneous bi-segmented were prepared by electrodeposition followed by chemical treatment to confer biocompatibility and avoid possible nickel toxicity. Electrodeposition has been selected because it is well suited to fabrication of nanostructures with varied properties [15,16]. Moreover, this technique has several advantages over other methods, such as physical vapor deposition, chemical synthesis, etc.…”

mentioning

confidence: 99%

Electrochemically synthesized nanostructures for the manipulation of cells: Biohybrid micromotors

Serrà¹,

Vallés²,

García-Torres³

2017

Electrochemistry Communications

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Highlights Electrochemical synthesis of two types of magnetic nanomotors in a single solution  Core-shell Ni@Au and Ni@NiO-Au nanorods designed to avoid cytotoxicity  Formation of cell-nanorod biohybrid asymmetric microstructures  Controlled movement of yeast cells with micron-size precision  Strategy for separation of cells and biomedical applications *Highlights (for review) AbstractIn this communication we describe the preparation and operation of two types of Ni/Au nanorods (NRs) as new magnetic micromotors for the transport and manipulation of single cells to target specific areas with micron-size precision. This enables huge potential environmental or biomedical applications at the cellular scale. Electrodeposition followed by chemical treatment was employed to fabricate biocompatible Ni/Au NRs in two different configurations: nonhomogeneous bi-segmented Ni@NiO-Au and homogeneous core-shell Ni@Au NRs. After incubating the NRs with yeast cells for 24 h, they were partially taken into the cells, forming cells-NR biohybrid microstructures. We demonstrate that the asymmetric hybrid structures can be driven by external magnetic fields. The velocity and direction of the cells' motion can be controlled and tuned by modifying the field strength, frequency or direction of the rotating magnetic field. Similar hydrodynamic behaviour is observed for biohybrid microstructures containing the two types of NRs.

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Measurement of the Giant Magnetoresistance Effect in Cobalt–Silver Magnetic Nanostructures: Nanowires

Cited by 10 publications

References 27 publications

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

Combining 2D organic and 1D inorganic nanoblocks to develop free-standing hybrid nanomembranes for conformable biosensors

A comprehensive review on the biomedical frontiers of nanowire applications

Electrochemically synthesized nanostructures for the manipulation of cells: Biohybrid micromotors

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