Reversible sensing of heavy metal ions using lysine modified oligopeptides on porous silicon and gold

Politi, Jane; Dardano, Principia; Caliò, Alessandro; Iodice, Mario; Rea, Ilaria; Stefano, Luca De

doi:10.1016/j.snb.2016.12.132

Cited by 18 publications

(12 citation statements)

References 34 publications

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“…Other pathways for detection based on reflectance usually involve the analysis of the interferogram average over wavelength (IAW–IAW 0 ) [89,97] as well as the estimation of effective optical thickness ratio (EOT/EOT 0 ) [53,54]. For instance, PSi sensors based on the reflectance response for heavy metal detection were studied in [61,97,98,99]. Politi et al reported on the highly-sensitive (LOD ~ 1.2 ± 0.3 ppb) method for Pb(II), As(III), and Cd(II) detection via the modification of PSi surfaces by lysine and oligopeptides [98].…”

Section: (Bio)sensors Based On Psi Sinws Sinps and Their Composimentioning

confidence: 99%

“…For instance, PSi sensors based on the reflectance response for heavy metal detection were studied in [61,97,98,99]. Politi et al reported on the highly-sensitive (LOD ~ 1.2 ± 0.3 ppb) method for Pb(II), As(III), and Cd(II) detection via the modification of PSi surfaces by lysine and oligopeptides [98]. The advanced optical approach for E. coli detection was also proposed by Y. Tang et al [53].…”

Section: (Bio)sensors Based On Psi Sinws Sinps and Their Composimentioning

confidence: 99%

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Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Myndrul

Iatsunskyi

2019

Materials

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This review highlights the application of different types of nanosilicon (nano-Si) materials and nano-Si-based composites for (bio)sensing applications. Different detection approaches and (bio)functionalization protocols were found for certain types of transducers suitable for the detection of biological compounds and gas molecules. The importance of the immobilization process that is responsible for biosensor performance (biomolecule adsorption, surface properties, surface functionalization, etc.) along with the interaction mechanism between biomolecules and nano-Si are disclosed. Current trends in the fabrication of nano-Si-based composites, basic gas detection mechanisms, and the advantages of nano-Si/metal nanoparticles for surface enhanced Raman spectroscopy (SERS)-based detection are proposed.

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Section: (Bio)sensors Based On Psi Sinws Sinps and Their Composimentioning

confidence: 99%

Section: (Bio)sensors Based On Psi Sinws Sinps and Their Composimentioning

confidence: 99%

Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Myndrul

Iatsunskyi

2019

Materials

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“…These include the innovative use of nanostructures with a negative effective refractive index capable of guiding light with very low losses [ 4 , 5 ] and switching its optical path through unprecedented effects [ 6 ]. Furthermore, the matching of processing technologies have paved the way for new devices integrated with fluidic, electronic, and photonic circuits for sensing detection and healthcare, which have led to the development of a new generation of biochips to be applied in fields ranging from biomedical to environmental [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Integrated Photodetectors Based on Group IV and Colloidal Semiconductors: Current State of Affairs

Dardano

Ferrara

2020

Micromachines

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With the aim to take advantage from the existing technologies in microelectronics, photodetectors should be realized with materials compatible with them ensuring, at the same time, good performance. Although great efforts are made to search for new materials that can enhance performance, photodetector (PD) based on them results often expensive and difficult to integrate with standard technologies for microelectronics. For this reason, the group IV semiconductors, which are currently the main materials for electronic and optoelectronic devices fabrication, are here reviewed for their applications in light sensing. Moreover, as new materials compatible with existing manufacturing technologies, PD based on colloidal semiconductor are revised. This work is particularly focused on developments in this area over the past 5–10 years, thus drawing a line for future research.

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“…Digital scales are used in a wide range of scientific applications including chemical research, genomics, drug discovery, and proteomics. Scales are classified by precision; where a precision balance has a measurement resolution of 0.001 g, an analytical balance has one of 0.0001 g and a micro balance has one of 0.0000001 g. On the high-end of scales, an open-source quartz crystal microbalance (OpenQCM) [55] uses an open-source Arduino Nano and is already well established in the scientific literature [56][57][58][59][60].…”

Section: Introductionmentioning

confidence: 99%

Open-Source Digitally Replicable Lab-Grade Scales

Hubbard

Pearce

2020

Instruments

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This study provides designs for a low-cost, easily replicable open-source lab-grade digital scale that can be used as a precision balance. The design is such that it can be manufactured for use in most labs throughout the world with open-source RepRap-class material extrusion-based 3-D printers for the mechanical components and readily available open-source electronics including the Arduino Nano. Several versions of the design were fabricated and tested for precision and accuracy for a range of load cells. The results showed the open-source scale was found to be repeatable within 0.05 g with multiple load cells, with even better precision (0.005 g) depending on load cell range and style. The scale tracks linearly with proprietary lab-grade scales, meeting the performance specified in the load cell data sheets, indicating that it is accurate across the range of the load cell installed. The smallest load cell tested (100 g) offers precision on the order of a commercial digital mass balance. The scale can be produced at significant cost savings compared to scales of comparable range and precision when serial capability is present. The cost savings increase significantly as the range of the scale increases and are particularly well-suited for resource-constrained medical and scientific facilities.

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Reversible sensing of heavy metal ions using lysine modified oligopeptides on porous silicon and gold

Cited by 18 publications

References 34 publications

Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Integrated Photodetectors Based on Group IV and Colloidal Semiconductors: Current State of Affairs

Open-Source Digitally Replicable Lab-Grade Scales

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