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You selected inventions in category Material Science

  • Energy Harvesting System with Piezoelectric PolymerEnergy Harvesting System with Piezoelectric...

      Polyvinylidene fluoride (PVDF) is a piezoelectric material that can convert kinetic energy to electric energy. This technology provides a PVDF piezoelectric thin film and proposed its use of energy harvesting system, which converts ambient energy into electrical energy for small wireless autonomous devices. The PVDF thin film we are introducing is light and thin, easily formable, robust to mechanical stress and eco-friendly, compared with the ceramic materials used for existing energy harvesting systems, such as a lead zirconate titanate (PZT).

      Technology Benefits:
      •Easily formable
      •High mechanical strength
      •Various stress mode is available (Bending, Tension, trampling, scratching)
      •The electric properties has been well-defined
      •Non-toxic and eco-friendly

      Possible Applications:
      Battery-less wireless devices, Power generating floor, Self-powered sensing system, Wearable electronics, Large-scale energy harvesting system

      Possible Collaborations:
      Collaborative research, License

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        Headphones have become ubiquitous within the modern world; and for good reason, people love their music. Understandably, people hate when something comes between them and their music. Unfortunately, headphones often become a vexing obstacle between the user and their music. Anybody who uses headphones will tell you that one of the most aggravating situations is when their all set to listen to their music, they get their media device out only to find the cables in a tangled mess.
        Although untangling the headphones only takes a few minutes this is an inconvenience the user would rather not deal with. Enthusiasts and headphone producers have long recognized the problems associated with tangled cables, spending millions of dollars in research and development. Unfortunately, the result of this research has created subpar products that are either too inconvenient to use or are ineffective at improving the users experience. It has been proven many times that users are unhappy with the current headphones design and their poor tangle resistance. Moreover, there is a proven market for solutions. For example, one of many market proven products includes the Kickstarter Project CordCruncher, the project raised over $66,000 in just 30 days ( There are many other Kickstarter Projects that have raised over $600,000 for cable solutions.
        Our solution has the same functionality as the Cord Cruncher Headphones, and more. The product would be cheaper, more versatile, and convenient to use; solving the annoying problems associated with tangled, damaged, strained, or knotted headphone cables while opening up possibilities for more creative uses of headphones. The solutions functions by using a special wire integrated into the headphone cable, the wire is commonly known as memory metal and has riveting properties. The memory metal allows the user to use the headphones, as they normally would, however in order to conveniently wrap the cables up for storage the user may press a button that causes the memory metal to return to a predefined shape. Useful predefined shapes may be a tidy coil, compact winding that contours to an electronic device, or even an Apple Logo! The possible shapes, sizes, and configurations are endless; any shape that cables can be wound into can be achieved automatically by using integrated memory metal. Custom designs may include the user name, a word, or customer design.

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      • Rollset - retractable handsfree set in the size of a coinRollset - retractable handsfree set in the size...

          Flat cable cord (0.4 mm thick rectangular cable with total cable length 100cm) is rolled up on a button sized cable reel from both sides with different length. 1/3 of the total cable length distance is between device and earphones and 2/3 of the cable length is between device and plug for mobile phones (3.5mm phone jack, for any smartphone). The device is therefore located on the upper chest during use.

          In the centre-point of the cable reel where the cable is rolled up from both sides a microphone and a button to take/stop phone calls are placed. Thus, the cable is rolled up around the micro and the micro (respectively housing) is placed on the upper chest during use and is therefore in the ideal speaking position (distance earphones - housing/micro (upper chest) = 33 cm; distance phone jack - housing/micro (upper chest) = 67 cm).

          Cable is rolled up synchronously from both sides with different length and different speed in an elegant way. The whole device has a diameter of 26mm and a height of 10mm and therefore looks like a button (fixed with a steel clip). The mechanism is patented (PCT) and the name Rollset trademark protected.

          Rollset's main features:
          - High quality in technique and design
          - No radiation
          - Handy and easy to use

          Target audience:
          Anybody – but mainly focussing on young, urban professionals and anybody who appreciates innovation, good design and quality.

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            The present invention relates to a method of manufacturing a porous scaffold with a very high thermal and chemical stability and high resistance to different pH, ion strength and polarity of the culture media. The prepared zeolite membrane can also be utilised as a scaffold for delivering one or more biologically active chemical molecules to adhered cells. This material has a unique microbial resistance and it is indestructible in the culture medium.

            The interaction of cells with the surface of biomaterials is of great relevance both in research and clinical practice. The invention can be of interest to pharmaceutical companies, manufacturing industries of surgical prosthesis, manufacturing industries of instruments for environment defence and preservation and manufacturers of fresco and restoration products. The invention can also be applied for biomedical implants, tissue engineering, arthoplastic surgery, regenerative medicine, hold aquatic polluting and bacteria and improve architectural paintings.

            -The invention subject requires inexpensive reactants and zeolite membranes prepared.
            -Very easily carried-out and fast method able to produce different tailored scaffolds.
            -These supports are durable, indestructible, inseparable and resistant to thermal and chemical gradients.
            -This homogenous film is very low since it is permanent, durable and reusable in several subsequent cycles of cultures.
            -Biocompatible and chemically modulatable to improve the cell cultivations of various animal, plant, bacterium cell lines.
            -The reaction with appropriate reagents, allows one to vary and increase the strength and type of interaction with biological molecules, improving the selectivity of adhesion, growth differentiation and separation.
            -The zeolite membranes can be used in various media: buffer, sea, water, and in different conditions of pH and oxygenation
            -The zeolite membrane is very easy to transform into a solid support having excellent antimicrobic and/or antifungal properties using an ion-exchange process in the presence of cupric or silver salt solutions.

            It permits the selective incorporation of undesirable substances (such as pollutant, toxic and poisonous ions and molecules) and can be used to subtract the catabolites and/or substances obtained by equilibrium reactions so as increase the cellular metabolism. Moreover, it allows the selective permeation of molecules with small kinetic diameters such as ammonia, creatinin and urea obtained from the cell catabolism.

            Prototypes of different type of auto-supported zeolite membranes have been prepared and tested in various cell cultures.

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              The importance of the filters toxicity concerns has been greatly exacerbated in recent years to the point that the producers of raw materials and technical formulators have implemented various strategies in order to develop stable and safe sunscreens. In this context, the use of “SPF boosters”, raw materials are able to increase the SPF of a formulation of the sun exploiting different mechanisms of action, is an interesting approach in the development of solar products.
              Considerable interest has also led to the preparation of formulations for the protection from oxidizing agents (ozone, hypochlorite and environmental pollutants) responsible for a pathological condition, such as oxidative stress, which can damage different cell structures. Oxidative stress, indeed, involves a degradation of cells and tissues with a loose in their efficiency. The premature aging of the skin is one of the most popular signs. This idea is based on the use of polyvinylpyrrolidone (PVP) functionalized with antioxidant molecules such as rosmarinic acid, ellagic acid, epigallocatechin gallate, resveratrol, hydroxytyrosol, to be used as boosters of SPF and / or protective agents for skin and hair from exogenous factors such as harmful UV radiation, ozone and chemical oxidants.

              At present, polymeric and antioxidant compounds, such as polyphenols, are individually used in cosmetic, pharmaceutical and nutraceutical formulations, but no examples of antioxidant-polymer conjugates are reported.
              The use of polymeric materials functionalized with antioxidant molecules can combine the advantages of both polymeric materials and antioxidant molecules. In particular:
              Lower degradability of the polymer: the conjugation of a polymeric system with antioxidant molecules confers higher stability to the polymer backbone, which will be less susceptible to degradation reactions.
              Increased stability of the antioxidant molecule: the presence of a covalent bond avoids the effects of migration and extrusion of the antioxidant molecule, which are typical of formulations in which the antioxidant is simply mixed with the other ingredients of the preparation.
              Enhanced security: the conjugation of the polymer with the antioxidant molecule reduces the toxic effects related to the skin absorption which can cause various effects including the accumulation in tissues.
              Speed of preparation: the synthetic strategy is easily modulable.
              Easy industrial scale up: the synthetic strategy allows to operate in non-drastic conditions.

              Reduction to Practice/Prototype (in vivo experiments)

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            • PS-XXXX-X electrostatic micro perforation machines for ventilated mass productsPS-XXXX-X electrostatic micro perforation...

                Based at micro discharging and sparking, plasma tunnel effects with gas atomic ionization in nano second time windows. The pores are normally statistical irregularly distributed in controlled size ranges from 0.5 up to 80 microns diameter and analogically, under LASER or MICRO or MACRO PERFORATION, arranged in diameter sizes from 60 up to 200 microns, at best non-inclined holes und holes rows of diverse arrangement comprehension.

                For the naked human eye invisible electrostatic nano or micro perforations may be arranged in areas or zone bands with specific distances within its web. Controlled pore sizes in wide ranges from 0.50 up to 80 micron diameters by holes sequences up to 16 million pores per second and 0.1 up to 3 mill Joule discharge energy for each pore. Process and power electronics patent granted with DE10328937.

                Arrangements of zones are usually carried out in width from 2 to 6 mm and pores density of 15 up to 250 pores per square cm whereas the perforation of areas results in pore densities of up to 5 million pores per m2 in surface-all-over design. Electro static perforations allow porosity levels from 80 up to 2500 Coresta Units (ml/min/2cm2, 1000Pa), equality from 40 down to 3 Gurley material web widths from 100 up to 2000 mm at web speeds of up to 500 m/min, depending on porosity and material consistency in relation to its ability to perforate.

                Products, applications, advantages, high-holes-densities micro perforation, ventilation, mass product properties
                breathable, ventilation, filter cigarettes, tipping, packaging, plug wrap, refinish, thin paper, MYO, RYO, LIP
                booklet, bible, printing, magazine, promotion, flyers, newspaper, improved modified surface properties
                Kraft paper, sacks with low PE coating, single or triple layer multi wall sacks, tubers, bags for cement, plaster, maize, grain, pet food, granulate or powder
                gained air outlet during filling with high efficiency to keep packed products in specified barrier condition
                extending storages, live time or durability of certain goods and products
                decoration or gift paper with thin coating films
                PVC laminate, Vinyl, decoration, wall paper to eliminate condensation effects, enable gas exchanges, avoid rises of mildew or rottenness
                joint or corner Kraft paper tapes to avoid glue bubbles and enables material diffusion
                fleece bonding material, low plastic film layers for outdoor, under roof protection covering, wooden houses for oxygen exchanges
                technical textiles for oxygen or gas exchanges to avoid condensation processes
                breathable overalls, heavy duty, disposable work dresses, trousers, made of thin PE fleeces or others
                biotopes and prevention of water pollution
                leather or cloth inlets for comfortable non sweat wearing under wet, high humidity and tropical condition
                soap, deodorant, hygiene, beauty creams, baby care, other packaging products
                which needs smell suggestion for marketing indication and buying advantages
                vegetable, flowers or food with paper packaging replacements for oxygen or gas exchanges
                bread, rolls, fruit or food to improve freshness and aroma
                technical multi layer foils for industry, medical, bioengineering, filtration purposes surface modification, improved roughness
                micro filter, membranes, battery separation layers
                bio lab analytic, alcohol, liquid, blood filtration, clean room, agriculture, reduction or force growth rates

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              • OPSS-1 online permeability porosity sensor scanner measurementOPSS-1 online permeability porosity sensor...

                  Sophisticated multi functional inline permeability sensor scanner systems

                  Patent pending DE10251610 and patent granted in China 200310104764. Stationary or scanner systems for high speed moving fabrics or sheet material to detects very precise and reproduce specified product properties, natural or micro perforated porosity levels during production. OPSS-1 OPRL-1 vision control systems are equipped with multiple IR, NIR, VIS monolithic spectral color sensors, precision line lasers, CCD image devices, DSP, ATMEL, INFINEON sensor internal controller, firmware, serial data link, scanning speeds 20 up to 500 mm per second, web widths up to 5000 mm, measuring gaps from 2.0 up to 5.0 mm, optical inline detection of permeability, porosity, spectral transmission, opacity, extinction, particle absorption, porosities ranges 80 up to 5000 C.U. respective from 50 down to 4 Gurley, position control of micro perforation lines with 0.1mm accuracy, 0.050 up to 200 microns pore diameter by up to 300 pores per cm2.

                  With real time data determining of certain parameters, optical transmission, spectral grades, porosity integrals, envelope curves, internal calculated measuring values. Thus direct with close loops and feedback to power electronics of fabrics treatment units. Micro perforation or other treatment system makes it possible to compensate any changes in web treatment parameters and their partial locations so that each jumbo roll as well single, twin or quad bobbin sets can be produced quantity and quality controlled without intermediate stops in order of ISO-9001, ISO-9002 certifications.

                  Working principle and application
                  Thus sophisticate, precise, liable, repeat accuracy, easy visualized, optical online measurement techniques archives perfect ways to control and convert pneumatic, fluid, gas, jet streams, static permeability, naturally porous grades, filtration levels, breathable or ventilation effects. Their conditions can be easily met by using optical transmission technology thanks to described processing in full online stationary or scanning control units, extremely small pore dimensions, high fabric speeds up to 1000 meters per minute by high repetition rates.

                  That completely independent from base material properties as consistency, coloring, density, formation, pin holes, smoothness, stretching, shrinking, brightness, opacity, spectral property, gauging thickness weight, moisture content and other known influences. Optical inline OPSS-1 porosity sensor scanning systems for permeability cluster control at electrostatic or laser micro perforation machines, with multiple color sensor head, spectral intensity, DSP, FPGA, CCD, one precise line laser, position, material finger print detection, VIS wavelength, touch less measure of opacity, defects, inspection, combines controller internal firm and further PC process software. Uses for filter, tipping, cigarette, booklet, packaging, magazine, newspaper, media, bible, wall, decoration, Kraft, sack, filter, paper, coffee, tea, food, co-extrusion, foil, film, agriculture, cement, maize, rise, pet, domestic or other fast moving web material.

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                • ODSTM-1 in-situ dyne surface tension wettability measurement at fast moving plastic films and foilsODSTM-1 in-situ dyne surface tension wettability...

                    Method and device for online tough less surface tension control ODSTM-1 in DE19543289 by which the fast moving substrate through the measuring gap. It is transmitted with a chromatic beam and spectral selected light source were two optical channels are displaced and polarized by 90 degree to each other. Both optical axles are precise and motor driven shift able in certain angles from 25 up to 65 degree. The spectral light photons, transmission, extinction, absorption grades are detectable by two optical CCD imagine vision devices, integrated into the sensor case on other side of the substrate.

                    Material condition
                    At high speed moving substrates means plastic foil, flexible, film, laminate, coating, bonding, labeling, co-extrusion, BOPP, LDPE, LLDPE, HDPE, MDPE, MAS, MOH, MEV, PET, FEP, PP, PE, PS, PO, EVA, PTFE, PVC, PTFE, Vinyl, Polyester, wrapping, self-adhesive tape, high strength, cross laminated, adhesive coated films, reflective or magnetic sheeting, automotive tape products, inkjet, heat sealing, security, pressure sensitive tapes for entertainment or building industry, masking or printable plastic films, polycarbonate, acrylic, extruded or polished cellulose, optical grade polycarbonate, sheets for IR or laser protection, filter sheet, imaging, capacitors, bi-oriented polystyrene sheet, multilayer co-extruded film, PVC, PETG, polyimide, tear tapes for aerospace, inner covering in aircrafts, automotive, medical, bioengineering, renewable, agriculture, marine, household, commercial, domestic, construction, high-porous membranes for uses in alkaline lithium ion batteries, fuel cells, filtration equipment. By gauges 10-500 microns, fabric widths up to 10000 mm and web speeds up to 18 m/s.

                    Optical properties and quality control
                    Material specific wavelength selection 1200 up to 1800 nm, material specific finger prints, molecular spectral properties, transmission, optical angle scanning, ultra low level stray scatter light detection, polarization, slot diaphragms, transverse displacements control the light beams along and far from the optical X and Y axes. The results are extreme scattering, diffraction, NIR, IR, stray light photons generation into the layer areas at both sides of the moving substrate.

                    Their reflected and transmitted light intensities enables the determination by defined formulas and data matrixes the surface tension values in ranges from 28 up to 62 mN/m or dynes which are direct associate and bond to real static values for statistical quality control (SQC).

                    And this entirely independent of the material specific influences as like surface consistency, thickness, density, weight, opacity, coherence, filling, stretching, shrinkage, structure, co-extrusion, polar grouping, temperature, intrinsic motivation or viscosity, hydrophobia, hydrophilic molecules, hydrogen, moisture, water steam proof, bi-layer, polymer, patterning, nanostructure, irradiation, isotopic, catalyst, coherence, absorption, photo mask effect, radiation, resonance bands, Raman, electron spectroscopy for chemical analysis ASTM or ATR method, property, acoustic photonic liquid effects, pre material treatment as corona, plasma jet, flam treatment.

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