Functionalization of indium-tin-oxide electrodes by laser-nanostructured gold thin films for biosensing applications

Grochowska, Katarzyna; Siuzdak, Katarzyna; Karczewski, Jakub; Śliwiński, Gerard

doi:10.1016/j.apsusc.2015.10.053

Cited by 16 publications

(11 citation statements)

References 48 publications

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“…Nanosecond pulsed laser irradiations of thin metal films on substrates is, nowadays, usually used to induce a molten-state dewetting process of the metal films resulting in the formation of nanoscale size metal droplets which can be used, for example, as plasmonic systems in several optical, catalytic, and sensing applications [26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,68,69,70,71,72]. Several studies focused on the study of the microscopic thermodynamic and kinetic mechanisms involved in the dewetting process so as to reach a strict control on the dewetted nanoparticles, morphology, size, surface density, etc.…”

Section: Nanostructuration Of Thin Metal Films By Nanosecond Pulsementioning

confidence: 99%

“…Depending on the nature of the properties of the metal film, of the substrate, and of the type laser, metal nanoparticles [26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53], metal microbumps [54], spatially ordered metal nanostructures such as spikes and ripples (laser-induced periodic surface structures) [55,56], metal nanobumps and nanojets [57,58,59,60,61,62,63,64,65,66,67] can be produced; the study of which has continued until very recent times [68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83].…”

Section: Introductionmentioning

confidence: 99%

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Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review

Ruffino

Grimaldi

2019

Nanomaterials

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Metal nanostructures are, nowadays, extensively used in applications such as catalysis, electronics, sensing, optoelectronics and others. These applications require the possibility to design and fabricate metal nanostructures directly on functional substrates, with specifically controlled shapes, sizes, structures and reduced costs. A promising route towards the controlled fabrication of surface-supported metal nanostructures is the processing of substrate-deposited thin metal films by fast and ultrafast pulsed lasers. In fact, the processes occurring for laser-irradiated metal films (melting, ablation, deformation) can be exploited and controlled on the nanoscale to produce metal nanostructures with the desired shape, size, and surface order. The present paper aims to overview the results concerning the use of fast and ultrafast laser-based fabrication methodologies to obtain metal nanostructures on surfaces from the processing of deposited metal films. The paper aims to focus on the correlation between the process parameter, physical parameters and the morphological/structural properties of the obtained nanostructures. We begin with a review of the basic concepts on the laser-metal films interaction to clarify the main laser, metal film, and substrate parameters governing the metal film evolution under the laser irradiation. The review then aims to provide a comprehensive schematization of some notable classes of metal nanostructures which can be fabricated and establishes general frameworks connecting the processes parameters to the characteristics of the nanostructures. To simplify the discussion, the laser types under considerations are classified into three classes on the basis of the range of the pulse duration: nanosecond-, picosecond-, femtosecond-pulsed lasers. These lasers induce different structuring mechanisms for an irradiated metal film. By discussing these mechanisms, the basic formation processes of micro- and nano-structures is illustrated and justified. A short discussion on the notable applications for the produced metal nanostructures is carried out so as to outline the strengths of the laser-based fabrication processes. Finally, the review shows the innovative contributions that can be proposed in this research field by illustrating the challenges and perspectives.

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Section: Nanostructuration Of Thin Metal Films By Nanosecond Pulsementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review

Ruffino

Grimaldi

2019

Nanomaterials

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“…Gold is one of the metals that is frequently used in constructing glucose sensors mainly because of its biocompatibility [16] and resistance to surface poisoning in both neutral and alkaline environment [17]. As substrates to immobilized catalytic metal glassy carbon [18], indium tin oxide [19], carbon nanotubes [20], titanium dioxide nanotubes [21,22] or silica with titanium and graphene layers [23] are commonly considered. Nevertheless, their biocompatibility is questionable and their stability for prolonged measurements or exposure to the mechanical stress is rarely evaluated.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

et al. 2019

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The detection of glucose at low concentrations using electrochemical sensors is of great importance due to the possibility of using different human body fluids than blood, such as e. g. urine, saliva, sweat or tears. The interest behind those biofluids is related to their utility in non‐invasive sugar determination. In this work, we present flexible, fully biocompatible electrode material based on Au nanoparticles immobilized onto titanium dimples. Au−Ti heterostructures were obtained via electrochemical anodization of titanium foil in presence of fluoride anions followed by chemical etching, magnetron sputtering of gold and subsequent thermal dewetting in continuous regime. In the last step of fabrication, electrodes were modified by permselective Nafion membrane. The selection of the best electrode material among different configurations was carried out basing on the electrochemical activity in the contact with 5 mM glucose dissolved in neutral air‐saturated 0.1 M PBS. For the 10 nm Au dewetted gold film, limit of detection of 30 μM and high sensitivity of 93 mA cm−2 mM−1 were achieved. Application of Nafion membrane caused complete inhibition of the impact of various interference species onto the glucose detection. Good selectivity and repeatability combined with the resistance to prolonged mechanical stress suggest that prepared material can be used in non‐invasive glucose sensing.

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“…Regarding the sensing platforms where the enzyme plays an important role as a selective recognizer of a particular analyte molecule, the whole fabrication process covers not only enzyme immobilization but also preparation of the conducting platform that enables charge collection and, in consequence, electrochemical detection. Among many nanostructures used as a host for the further anchoring of enzyme molecules are gold nanostructures that are chosen to be used in electrochemical sensors for glucose detection, as they exhibit high biocompatibility and chemical stability [ 29 ]. The fabrication of gold nanoparticles, as in the case of all nanomaterials, can be divided into two major approaches: bottom-up and top-down.…”

Section: Preparation Of Gold Nanoparticlesmentioning

confidence: 99%

“…Sputtering is a physical vapor deposition process (PVD) based on the interaction of a high purity metal target with an Ar ion plasma and further deposition of metal onto a supporting material [ 39 ]. Acting according to K. Grochowska et al [ 29 ] the AuNPs on ITO (indium thin oxide) substrate can be formed by pulsed laser dewetting of sputtered thin gold film. Gold nanoparticles can be also fabricated by the thermal treatment of thin Au layers in a typical electric furnace [ 40 ].…”

Section: Preparation Of Gold Nanoparticlesmentioning

confidence: 99%

Enzyme Immobilization on Gold Nanoparticles for Electrochemical Glucose Biosensors

2021

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More than 50 years have passed since Clark and Lyon developed the concept of glucose biosensors. Extensive research about biosensors has been carried out up to this day, and an exponential trend in this topic can be observed. The scope of this review is to present various enzyme immobilization methods on gold nanoparticles used for glucose sensing over the past five years. This work covers covalent bonding, adsorption, cross-linking, entrapment, and self-assembled monolayer methods. The experimental approach of each modification as well as further results are described. Designated values of sensitivity, the limit of detection, and linear range are used for the comparison of immobilization techniques.

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Functionalization of indium-tin-oxide electrodes by laser-nanostructured gold thin films for biosensing applications

Cited by 16 publications

References 48 publications

Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review

Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

Enzyme Immobilization on Gold Nanoparticles for Electrochemical Glucose Biosensors

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