Paolo Lugli

Paolo Lugli
Free University of Bozen-Bolzano | Unibolzano · Faculty of Science and Technology

About

754
Publications
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14,174
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Publications

Publications (754)
Article
Full-text available
The precise monitoring of environmental contaminants and agricultural plant stress factors, respectively responsible for damages to our ecosystems and crop losses, has nowadays become a topic of uttermost importance. This is also highlighted by the recent introduction of the so-called “Sustainable Development Goals” of the United Nations, which aim...
Article
A delivery platform of active compounds on demand has been developed, composed of a flexible mat of CO2-derived poly (propylene carbonate) (PPC) electrospun fibers, loaded with antioxidant cinnamon essential oil (CEO), covered with poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and poly(N-isopropylacrylamide) (PNIPAM). The PED...
Article
Full-text available
In this work, we propose a novel disposable flexible and screen-printed electrochemical aptamer-based sensor (aptasensor) for the rapid detection of chlorpyrifos (CPF). To optimize the process, various characterization procedures were employed, including Fourier transform infrared spectroscopy (FT-IR), electrochemical impedance spectroscopy (EIS),...
Poster
Full-text available
Abstract Here we propose the use of a diode-based sensor fabricated on a glass substrate coated with an ITO electrode (anode) with a spin-coated semiconducting polymer layer (e.g., Poly(3-hexylthiophene) (P3HT), PCBM) and aluminum counter electrodes (cathode) with a porous structure created by colloidal photolithography. Ammonia molecules can diffu...
Article
The detection of the presence of bacteria in water is essential to determine their use and prevent environmental and health problems. Conventional techniques for the detection of certain bacteria, such as Escherichia coli, are very lengthy, require trained operators and can be subjective, since they are based on the capacity of colour discernment o...
Article
Electronic waste produced by plastic, toxic, and semiconducting components of existing electronic devices is dramatically increasing environmental pollution. To overcome these issues, the use of eco-friendly materials for designing such devices is attaining much attention. This current work presents a recycled material-based triboelectric nanogener...
Article
Full-text available
Tetracycline (TC) is a widely known antibiotic used worldwide to ‘’treat animals. Its residues in animal-origin foods cause adverse health effects to consumers. Low-cost and real-time measuring systems of TC in food samples are, therefore, extremely needed. In this work, a three-electrode sensitive and label-free sensor was developed to detect TC r...
Article
Full-text available
Nowadays, there is a high demand for sensitive and selective real-time analytical methods suitable for a wide range of applications, from personalized tele-medicine, drug discovery, food safety, and quality control, to defense, security, as well as environmental monitoring. Biosensors are analytical devices able to detect biochemical analytes (e.g....
Article
Full-text available
Nitrate (NO3–) contamination is becoming a major concern due to the negative effects of an excessive NO3– presence in water which can have detrimental effects on human health. Sensitive, real-time, low-cost, and portable measurement systems able to detect extremely low concentrations of NO3– in water are thus becoming extremely important. In this w...
Article
Full-text available
The possibility of integrating plasmonic nanostructures directly on an active device, such as a silicon photodetector, is a challenging task of interest in many applications. Among the available nanofabrication techniques to realize plasmonic nanostructures, Focused Ion Beam (FIB) is surely the most promising, even if it is characterized by certain...
Article
Full-text available
In this work, we present a do-it-yourself (DIY) approach for the environmental-friendly fabrication of printed electronic devices and sensors. The setup consists only of an automated handwriting robot and pens filled with silver conductive inks. Here, we thoroughly studied the fabrication technique and different optimized parameters. The best-achie...
Poster
Full-text available
This poster shows my Ph.D. research focus at a glance!!! The main aim is to develop a chemiresistive single-walled carbon nanotubes (SWCNT) based gas sensor to measure the ammonia (NH3) produced in the bioreactors of the Simulator of the Human Microbial Ecosystem (SHIME) at the Micro4Food lab. Here are reported the main results of the developed re...
Conference Paper
In this work, Schottky diodes based on amorphous indium-gallium-zinc-oxide (IGZO) were fabricated on cellulose microfiber paper substrate. Silver lines used as the Schottky barrier were printed, in parallel to thermally evaporated Cr/Au ohmic contact, using a dispense printer. The morphological and electrical characteristics of the devices are pres...
Conference Paper
Since its first discovery in 2014, laser-induced graphene (LIG) has gained increasingly attention as a simple and low-cost alternative to printing techniques, which instead require additional materials such as functional ink or adhesive layers. While there are several works on LIG supercapacitors, gas sensors, and triboelectric generators, this met...
Article
Full-text available
Strawberry is one of the most popular fruits in the market. To meet the demanding consumer and market quality standards, there is a strong need for an on-site, accurate and reliable grading system during the whole harvesting process. In this work, a total of 923 strawberry fruit were measured directly on-plant at different ripening stages by means...
Article
The world is experiencing significant changes, including exponential growth of the global population, global warming and climate change, biodiversity loss, international migration, digitalization, smart agriculture/farming, synthetic biology, and most recently a global human health pandemic. These trends pose a set of relevant challenges for the tr...
Article
Given the increasing number of connected devices as a consequence of the Internet of Things (IoT) revolution, the issue of the removal and recycling of electronics is becoming more and more urgent. In this context, biodegradable electronics is expected to be one of the biggest technological revolutions to tackle this problem. Following this directi...
Article
CNT-Based RC networks are described with the purpose of showing empirical findings on the influence of the interdigitated electrodes (IDE) spacing, the dispersant compound and the number of deposited layers, on the impedance magnitude and phase of the CNTs. Additionally, we propose use-cases for these networks, applying them to the realization of f...
Conference Paper
Electrical impedance spectroscopy, also called bioimpedance when applied to biological tissues, is an electrical measurement technique which is recently being used to assess food physiological state. Combined with strong data analysis techniques, bioimpedance has the potential to become a nondestructive, real-time, low cost, and portable technology...
Article
Full-text available
This paper presents a portable impedance analyzer based on the AD5933 integrated circuit, specifically designed for fruit quality monitoring throughout its entire supply chain. The custom designed system allows to flexibly tune the parameters (i.e. excitation voltage, feedback resistor, settling time) for each AD5933 frequency range from 10 Hz to 1...
Conference Paper
Full-text available
In this work, we demonstrate the advantages and the potentials of dispense printing (V-One, Voltera) for the realization of conductive contacts of flexible electronics. Printing parameters were optimized for Ag inks on different substrates (PCB, Si/SiO2 and polyimide), leading to straight homogeneous printed lines with minimum feature size of...
Article
Full-text available
The study of the human and animal bones represents a major objective of the biomaterials engineering and reconstructive medicine domain, as this type of natural-biological biomaterial offers excellent results when it is used in the optimal conditions, during complex surgical operations. We proposed the characterization of human compact bone using t...
Article
This paper presents a 3D-printed piezoelectric microphone with enhanced voltage sensitivity. The sensitivity is improved by a combination of a single-pillar mechanical design and a specific PVDF-film electrode patterning. The moving part of the mechanical structure and the chassis are 3D-printed as a single unit and trimmed by laser cutting, allowi...
Article
Full-text available
In recent decades, agriculture has faced the fundamental challenge of needing to increase food production and quality in order to meet the requirements of a growing global population. Similarly, viticulture has also been undergoing change. Several countries are reducing their vineyard areas, and several others are increasing them. In addition, viti...
Chapter
Soft robots, made of deformable and stretchable materials, have been exploited and investigated as promising technologies for a wide range of applications, from human assistance to rehabilitation. In this context, the possibility to integrate conformable, flexible and stretchable sensors able to detect external stimuli allows a further increase of...
Preprint
Full-text available
Strawberry is one of the most popular fruits in the market. To meet the demanding consumer and market quality standards, there is a strong need for an on-site, accurate and reliable grading system during the whole harvesting process. In this work, a total of 923 strawberry fruit were measured directly on-plant at different ripening stages by means...
Conference Paper
Salivary pH is one of the indicators of the dental health of a person. To enable fast and easy dental health observations, we developed a flexible capacitive pH sensor using graphene oxide (GO) sensing layer on the laser-induced graphene (LIG) electrode produced from a polyimide (PI) film acting both as LIG precursor material and substrate. Cyclic...
Conference Paper
In this work, we realized a printed immunosensor based on a competitive enzyme-linked immunosorbent assay (ELISA) to allow histamine detection. We investigated the effect of modifying the immunosensor electrodes with spray-deposited poly(3,4-ethyldioxythiophene)poly(styrenesulfunate) (PEDOT:PSS) and single walled carbon nanotube (SWCNT) films. Cycl...
Conference Paper
Ochratoxin A (OTA) is one of the most widely known and highly toxic types of mycotoxins, able to contaminate different food products and result in serious health problems for consumers. It is therefore important to detect OTA using fast, simple and reliable techniques. In this work, bendable and stretchable selective OTA biosensors were screen-prin...
Article
Full-text available
This work demonstrates a cost-effective manufacturing method of flexible and fully printed microheaters, using carbon nanotubes (CNTs) as the heating element. Two different structures with different number of CNT layers have been characterized in detail. The benchmarking has been carried out in terms of maximum operating temperature, as well as nom...
Article
Full-text available
In this paper flexible printed electrodes applicable to wearable electronics are presented. Using innovative materials as Laser Induced Graphene (LIG) and printed electronics, three type of electrodes based in LIG, silver chloride and carbon inks have been compared during the acquisition of bipotentials as electrocardiogram, electromyogram and elec...
Article
Full-text available
Furaneol is a widely used flavoring agent, which can be naturally found in different products, such as strawberries or thermally processed foods. This is why it is extremely important to detect furaneol in the food industry using ultra-sensitive, stable, and selective sensors. In this context, electrochemical biosensors are particularly attractive...
Article
The architecture of electrically contacting the self-assembled monolayer (SAM) of an organophosphonate has a profound effect on a device where the SAM serves as an intermolecular conductive channel in the plane of the substrate. Nanotransfer printing (nTP) enabled the construction of top-contact and bottom-contact architectures; contacts were compo...
Article
Full-text available
Abstract Heterocyclic amine histamine is a well-known foodborne toxicant (mostly linked to “scombroid poisoning”) synthesized from the microbial decarboxylation of amino acid histidine. In this work, we report the fabrication of a flexible screen-printed immunosensor based on a silver electrode coated with single-walled carbon nanotubes (SWCNTs) fo...
Chapter
Electrical impedance spectroscopy (EIS) is an emerging, fast, reliable and non-destructive technique for fruit quality assessment. In this paper, bio-impedance spectroscopy (BIS) measurements were carried out to monitor apple ageing evolution during a 12 days period using a microcontroller-based system. The data was extracted in the 100 Hz - 85 kHz...
Article
Solid state gas sensors are a cost-effective and well-spread alternative to conventional gas sensing, em-ployable in most environments, ranging from homes and offices to harsh industrial scenarios. The emergence of Car-bon Nanotubes (CNTs) as sensing material in solid state gas sensors, paved the way to a new class of devices, which are semi-transp...
Article
Full-text available
In this paper, we demonstrate the feasibility of realization of transparent gas sensors based on carbon nanotubes (CNTs). Both sensing layer and electrodes consist of CNTs deposited by spray deposition. The transparent sensor—with a transmittance higher than 60% in both sensing layer and electrodes—is characterized towards NH3 and CO2 and compared...
Article
The evaluation of fruit quality from the field to the table, through its storage, handling and transport has become of paramount importance to meet production and consumers demands. For this purpose, fast, reliable and low-cost non-destructive techniques are highly desirable, to avoid food waste and allow a real-time decision making. Among non-dest...
Article
A chipless wireless sensor for temperature monitoring is described in this work. The sensor is fabricated by screen printing of an RLC circuit on a flexible substrate. The sensing element is a resistive carbon paste with positive temperature coefficient placed in a small area in the interconnection between the inductor and the capacitor. This sensi...
Article
Full-text available
Detection of mycotoxins, especially aflatoxin M1 (AFM1), in milk is crucial to be able to guarantee food quality and safety. In recent years, biosensors have been emerging as a fast, reliable and low-cost technique for the detection of this toxin. In this work, flexible biosensors were fabricated using dispense-printed electrodes, which were functi...
Article
Transparent carbon nanotube electrodes for electric cell–substrate impedance sensing - Shokoufeh Teymouri, Florin Loghin, Marco Bobinger, Zeno Guttenberg, Paolo Lugli
Article
This work presents a novel algorithm for the measurement of resistive-type gas sensors with carbon nanotubes (CNTs) as sensitive layer. Contrary to conventional strategies, which extract the sensor information from the normalized resistance, the proposed algorithm is based on the variation in resistance over time. The results have demonstrated that...
Article
Full-text available
In this work, we report on a fabrication protocol to produce fully inkjet-printed temperature sensors on a bendable polyethylene terephthalate (PET) substrate. The sensing layer is made of polymer-based Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) ink that is electrically contacted by an underlying interdigitated electrode (ID...
Article
Properties of electrolyte gated transistors were studied on example of a system, where both carbon nanotubes semiconducting channel and modified gold gate were contacting an electrolyte solution, and response mechanisms of such transistors were discussed. Modification of the gate by polypyrrole nanoparticles, particularly those dispersed in poly (v...
Article
Full-text available
In this article, we report on an efficient post-treatment protocol for the manufacturing of pristine single-walled carbon nanotube (SWCNT) films. To produce an ink for the deposition, the SWCNTs are dispersed in an aqueous solution with the aid of a carboxymethyl cellulose (CMC) derivative as the dispersing agent. On the basis of this SWCNT-ink, ul...
Article
Full-text available
Printing techniques are a promising way of fabricating low-cost electronics without the need for masking and etching. In recent years, additive printing techniques, such as inkjet and screen printing, have been adopted to fabricate low-cost and large-area electronics on flexible substrates. In this work, a three-axial normal and shear force sensor...
Article
Flexible perovskite light-emitting diodes (LEDs) have attracted increasing interest to realize ultrathin, light weight, highly conformable, and nonfragile vivid displays. Solution-processed lead halide perovskite offers numerous distinctive characteristics, such as pure emission color, tunable bandgaps, and low fabrication cost. In this paper, gree...