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EXECUTIVE SUMMARY The reclaim of wastepaper to produce other recycled paper is a well consolidated industrial process that also brings proven economical and environmental advantages. However, the current production and collection of... more
EXECUTIVE SUMMARY The reclaim of wastepaper to produce other recycled paper is a well consolidated industrial process that also brings proven economical and environmental advantages. However, the current production and collection of recycling paper is marked by an enduring offer excess, which is difficult to take in for materials and products currently made.
Abstract—Three main research lines are presently developed at Politecnico di Milano: drug and gene delivery; surface modification/modelling; design of advanced materials: shape memory polymers and biodegradable stents. For gene delivery,... more
Abstract—Three main research lines are presently developed at Politecnico di Milano: drug and gene delivery; surface modification/modelling; design of advanced materials: shape memory polymers and biodegradable stents. For gene delivery, non-viral polycationic-branched polyethylenimine (b-PEI) polyplexes are coated with pectin, an anionic polysaccharide, to enhance the polyplex stability and decrease b-PEI cytotoxicity.
ABSTRACT We propose a new granular crystal sensor and actuator suite based on highly nonlinear solitary waves to offer a compact, inexpensive, and reliable diagnostic instrument for biomedical applications. A granular crystal... more
ABSTRACT We propose a new granular crystal sensor and actuator suite based on highly nonlinear solitary waves to offer a compact, inexpensive, and reliable diagnostic instrument for biomedical applications. A granular crystal sensor/actuator composed of tightly packed elastic particles is assembled to generate and retain self-reinforcing, nondispersive diagnostic solitary waves.
Abstract Vertical arrays of carbon nanotubes (VACNTs) show unique mechanical behavior in compression, with a highly nonlinear response similar to that of open cell foams and the ability to recover large deformations. Here, we study the... more
Abstract Vertical arrays of carbon nanotubes (VACNTs) show unique mechanical behavior in compression, with a highly nonlinear response similar to that of open cell foams and the ability to recover large deformations. Here, we study the viscoelastic response of both freestanding VACNT arrays and sandwich structures composed of a VACNT array partially embedded between two layers of poly (dimethylsiloxane)(PDMS) and bucky paper.
Research Interests:
Research Interests:
Electrochemical deposition is a versatile surface modification technology for the realization of advanced coatings for biomedical applications. Here, we studied the effects of bath composition on the morphology of chitosan films prepared... more
Electrochemical deposition is a versatile surface modification technology for the realization of advanced coatings for biomedical applications. Here, we studied the effects of bath composition on the morphology of chitosan films prepared via cathodic polarization of titanium substrates in acidic baths. Since electrocoagulation processes strongly depend on local reduction at the cathode, in turn affected by the acid/base equilibrium in solution, we examined three different water-based acid bath (1gl− 1) at different pH ranges: acetic acid ...
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Research Interests: Engineering, Materials Engineering, Chemical Engineering, Condensed Matter Physics, Materials Science, and 35 moreMembrane Science, Carbon, Nanoparticle, Proton Exchange Membrane, Performance, Scanning Electron Microscopy, Carbon Nanotubes, Nanocomposites, Transmission Electron Microscopy, Multidisciplinary, PEM fuel cells, Proton Exchange Membrane Fuel Cells, Crystal structure, Manufacturing Engineering, Compressive Strength, Annealing, Physical sciences, Durability, Current Density, Grain size, PEM fuel cell, Membrane, CHEMICAL SCIENCES, High Resolution, Surface Area, X ray diffraction, Particle Size, Platinum Nanoparticles, Wide Band Gap Semiconductors, Proton Exchange Membrane Fuel Cell, Mechanical Processes, Sol Gel Method, Nanotubes Carbon, Power Sources, and Power Density
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The nearly equiatomic nickel titanium alloys have been widely used in the biomedical device industry because of their unique shape memory, superelasticity, fatigue resistance properties and a stress-strain behavior similar to that of... more
The nearly equiatomic nickel titanium alloys have been widely used in the biomedical device industry because of their unique shape memory, superelasticity, fatigue resistance properties and a stress-strain behavior similar to that of living tissues. Despite of all these advantages, a wider application of these alloys in the biomedical field has been hindered for a long time, owing to the lack of a definite conclusions about its corrosion properties and nickel release.
Research Interests:
Research Interests:
Research Interests: Mechanical Engineering, Biomechanical Engineering, Acoustics, Biomedical Engineering, Nonlinear dynamics, and 15 moreRisk assessment, Humans, Femur, Measurement, Bone Density, Waves, Biomimetic materials, Particulate Matter, Risk Assessment, Solitary Wave, Materials Testing, Mechanical Processes, Bone and Bones, Clinical Application, and Biomechanical Phenomena
Equiatomic Nickel-Titanium shape memory alloys show sufficiently good biocompatibility to be used as a material for vascular stents. Corrosion resistance is an important property to be evaluated in regards with biocompatibility. Laser... more
Equiatomic Nickel-Titanium shape memory alloys show sufficiently good biocompatibility to be used as a material for vascular stents. Corrosion resistance is an important property to be evaluated in regards with biocompatibility. Laser cutting and machining became preferred methods in the production of NiTi tubular stents. These procedures, however, can modify surface and alter properties of passive films. In this study corrosion behaviour of NiTi stents was evaluated in asreceived from the factory state and after simple surface treatments like ...
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ABSTRACT The robustness and reliability of the Electro-Mechanical Impedance (EMI) method to assess dental prostheses stability is presented. The study aim at addressing an increasing need in the biomedical area where robust, reliable, and... more
ABSTRACT The robustness and reliability of the Electro-Mechanical Impedance (EMI) method to assess dental prostheses stability is presented. The study aim at addressing an increasing need in the biomedical area where robust, reliable, and non-invasive methods to assess the bone-interface of dental and orthopedic implants are increasingly demanded for clinical diagnosis and direct prognosis. In this study two different dental screws were entrenched in polyurethane foams and immersed in a solution of nitric acid to allow ...
Research Interests:
Research Interests:
In the recent past, clinical procedures underwent huge modifications. Among them, mini-invasive surgery has modified the clinical practice and the quality of life of patients. All these evolutions are strictly correlated to the... more
In the recent past, clinical procedures underwent huge modifications. Among them, mini-invasive surgery has modified the clinical practice and the quality of life of patients. All these evolutions are strictly correlated to the advancement in materials science. Shape Memory Polymers (SMPs), a novel class of stimuli-responsive materials, can be considered ideal candidates for the design of devices for mini-invasive surgery. Such devices can be inserted in a compact temporary shape and subsequently expanded at body temperature: a bone ...
Research Interests: Materials Engineering, Biomedical Engineering, Materials, Cytotoxicity, Cell line, and 17 moreMice, Animals, Plastics, Sterilization, Biomaterial, Ozone, Polyurethanes, Shape Memory, Low Temperature, Chemical Properties, Thermal Activation, Chemical Composition, Sterilisation, Biocompatible Materials, Minimally Invasive, Transition Temperature, and fibroblasts
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... In this work, two different processing techniques to obtain porous shape memory polymer scaffolds from Calo MER and MM-4520, two SMPs, are presented. ... Calo·MER 48 pellets, with a declared Ttrans=Tg = 48°C (lot number 082997D),... more
... In this work, two different processing techniques to obtain porous shape memory polymer scaffolds from Calo MER and MM-4520, two SMPs, are presented. ... Calo·MER 48 pellets, with a declared Ttrans=Tg = 48°C (lot number 082997D), were kindly provided by PTG. ...