The effect of boron concentration on the electrical, morphological and optical properties of boron-doped nanocrystalline diamond sheets: Tuning the diamond-on-graphene vertical junction

Rycewicz, Michał; Nosek, Adrian; Shin, Dong Hoon; Ficek, Mateusz; Buijnsters, Josephus Gerardus; Bogdanowicz, Robert

doi:10.1016/j.diamond.2022.109225

Cited by 12 publications

(6 citation statements)

References 72 publications

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“…A small 4% addition of diamond foil is indistinguishable in the Raman spectrum, mainly because the characteristic bands of the BDD foil [ 18 , 37 ] coincide with the Raman bands of the carbon filler used in the paste. In the Raman spectrum of thin carbon electrodes deposited on transparent inkjet printer film (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The boron-doped diamond foils were synthesised in an MWPACVD system (SEKI Technotron AX5400S), according to the details described in our previous work [ 18 , 19 ]. The BDDPE was prepared according to the following 5-step procedure, as summarised in Table 1 and described in detail in SI file, Section S1.…”

Section: Methodsmentioning

confidence: 99%

“…This approach would open up new opportunities for nanodiamond-based electronic devices. Our prior preliminary work revealed an efficient method of fabrication of large-area, thin BDD nanosheets with interesting electronic transfer properties [ 18 ], along with an efficient tunnelling in diamond-on-graphene junction configuration [ 19 ]. Next, it was reported that 3D printouts made from commercially available graphene-doped polylactic acid (G-PLA) with surface-functionalised nanocrystalline boron-doped diamond foil (NDF) were found to be effective for detecting 2,4,6-trinitrotoluene (TNT) [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

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Boron-doped diamond nanosheet volume-enriched screen-printed carbon electrodes: a platform for electroanalytical and impedimetric biosensor applications

Ficek,

Cieślik,

Janik

et al. 2023

Microchim Acta

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This paper focuses on the development of a novel electrode based on boron-doped diamond nanosheet full-volume-enriched screen-printed carbon electrodes (BDDPE) for use as an impedimetric biosensor. Impedimetric biosensors offer high sensitivity and selectivity for virus detection, but their use as point-of-care devices is limited by the complexity of nanomaterials’ architecture and the receptor immobilisation procedures. The study presents a two-step modification process involving the electroreduction of diazonium salt at the BDDPE and the immobilisation of antibodies using zero-length cross-linkers for a selective impedimetric biosensor of Haemophilus influenzae (Hi). The incorporation of diamond nanosheets into BDDPE leads to enhanced charge transfer and electrochemical behaviour, demonstrating greatly improved electrochemically active surface area compared with unmodified screen-printed electrodes (by 44% and 10% on average for [Ru(NH3)6]Cl2 and K3[Fe(CN)6], respectively). The presented sensing system shows high specificity towards protein D in Hi bacteria, as confirmed by negative controls against potential interference from other pathogens, with an estimated tolerance limit for interference under 12%. The Hi limit of detection by electrochemical impedance spectroscopy was 1 CFU/mL (measured at − 0.13 V vs BDDPE pseudo-reference), which was achieved in under 10 min, including 5 min sample incubation in the presence of the analyte. Graphical abstract

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Boron-doped diamond nanosheet volume-enriched screen-printed carbon electrodes: a platform for electroanalytical and impedimetric biosensor applications

Ficek,

Cieślik,

Janik

et al. 2023

Microchim Acta

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“…When highly doped with boron, it creates defect sights, which allow diamond to be conductive [78][79][80][81]. Diamond has a bandgap of 2.34 eV, and as the diamond is further doped, the band gap is tuned and reduced, as the material becomes more and more metallic like [82]. Here we tested a BDDME, where the BDD is insulated in a glass capillary.…”

Section: Potential Of Ultrasmall Carbon-based Diamond Electrodes For ...mentioning

confidence: 99%

Potential of Photoelectric Stimulation with Ultrasmall Carbon Electrode on Neural Tissue: New Directions in Neuromodulation Technology Development

Chen,

Wu,

Krahe

et al. 2024

Preprint

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ObjectiveNeuromodulation technologies have gained considerable attention for its clinical potential in treating neurological disorders and their capacity to advance cognition research. Nevertheless, traditional neuromodulation methods such as electrical stimulation and optogenetics manipulation currently experience technical and biological challenges that hinge their therapeutic potential and chronic research applications. Recently, a promising alternative neuromodulation approach based on the photoelectric effect has emerged. This approach is capable of generating electrical pulses when exposed to near-infrared (NIR) light and allows modulation of neuronal activity without the need for genetic alterations. In this study, we investigate a variety of design strategies aimed at enhancing photoelectric stimulation using minimally invasive, ultrasmall, untethered carbon electrodes.ApproachA multiphoton laser was employed as the NIR light source. Benchtop investigations were conducted using a three-electrode setup, and chronopotentiometry was used to record photo-stimulated voltage. Forin vivoevaluation, we used Thy1-GCaMP6s mice with acute implantation of ultrasmall carbon electrodes.Main resultsWe revealed the beneficial effects of high duty-cycle laser scanning and photovoltaic polymer interfaces on the photo-stimulated voltages of ultrasmall carbon electrodes. Additionally, we demonstrated the promising potential of carbon-based diamond electrodes for photoelectric stimulation and examined the application of photoelectric stimulation in precise chemical delivery by loading mesoporous silica nanoparticles (SNPs) co-deposited with polyethylenedioxythiophene (PEDOT).SignificanceThese findings on photoelectric stimulation utilizing ultrasmall carbon electrodes underscore its immense potential for advancing the next generation of neuromodulation technology. This approach offers the opportunity to effectively modulate neural tissue while minimizing invasive implantation-related injuries in freely moving subjects, which hold significant promise for a wide range of applications in neuroscience research and clinical settings.

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“…In this work, we report a novel series of experimental steps towards the fabrication of diamond nanopillar arrays by using porous AAO templates. Ultrathin AAO membranes and the nucleation side [41,42] of pre-grown CVD diamond sheets were used as the template and the target substrate, respectively. Nucleation of the diamond nanopillars can proceed directly on the target substrate, thereby eliminating a seeding step involving diamond nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Templated Synthesis of Diamond Nanopillar Arrays Using Porous Anodic Aluminium Oxide (AAO) Membranes

Zhang

Liu

et al. 2023

Nanomaterials

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Diamond nanostructures are mostly produced from bulk diamond (single- or polycrystalline) by using time-consuming and/or costly subtractive manufacturing methods. In this study, we report the bottom-up synthesis of ordered diamond nanopillar arrays by using porous anodic aluminium oxide (AAO). Commercial ultrathin AAO membranes were adopted as the growth template in a straightforward, three-step fabrication process involving chemical vapor deposition (CVD) and the transfer and removal of the alumina foils. Two types of AAO membranes with distinct nominal pore size were employed and transferred onto the nucleation side of CVD diamond sheets. Subsequently, diamond nanopillars were grown directly on these sheets. After removal of the AAO template by chemical etching, ordered arrays of submicron and nanoscale diamond pillars with ~325 nm and ~85 nm diameters were successfully released.

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The effect of boron concentration on the electrical, morphological and optical properties of boron-doped nanocrystalline diamond sheets: Tuning the diamond-on-graphene vertical junction

Cited by 12 publications

References 72 publications

Boron-doped diamond nanosheet volume-enriched screen-printed carbon electrodes: a platform for electroanalytical and impedimetric biosensor applications

Boron-doped diamond nanosheet volume-enriched screen-printed carbon electrodes: a platform for electroanalytical and impedimetric biosensor applications

Potential of Photoelectric Stimulation with Ultrasmall Carbon Electrode on Neural Tissue: New Directions in Neuromodulation Technology Development

Templated Synthesis of Diamond Nanopillar Arrays Using Porous Anodic Aluminium Oxide (AAO) Membranes

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