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Good vibrations: Using piezoelectricity to ensure hydrogen sensor sensitivity

ScienceDaily.com: Nanotechnology News - Wed, 05/22/2019 - 20:06
Researchers have developed a new method that uses piezoelectric resonance to improve the manufacture of highly sensitive hydrogen sensors. By optimizing the gaps between palladium nanoparticles in the devices, they were able to increase the sensitivity by a factor of 12 over palladium nanoparticles fabricated by previous methods. The work in this study is important for the development of new sensing devices that are capable of detecting hydrogen at low concentration.
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A light matter: Understanding the Raman dance of solids

ScienceDaily.com: Nanotechnology News - Wed, 05/22/2019 - 16:15
Scientists investigated the excitation and detection of photogenerated coherent phonons in polar semiconductor GaAs through an ultrafast dual pump-probe laser for quantum interferometry.
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Biobased nanocarriers cured a plant disease for the first time

NanoWerk.com - Wed, 05/22/2019 - 16:00
Novel nanocarriers made of 'waste' release drugs in a way that cured a plant disease for the first time.
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Graphene/carbon nanotube aerogels for ultrahigh energy-density Li-S batteries

NanoWerk.com - Wed, 05/22/2019 - 09:29
Researchers have developed high volumetric-energy-density and long-life lithium sulfur (Li-S) batteries based on the free-standing, densely compact, and integrated cathode.
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Neutrons unlock the secrets of limoncello

NanoWerk.com - Wed, 05/22/2019 - 09:15
If you're looking for a liquid to study with neutron scattering, lemon liqueur probably isn't your first thought. But this research is a nice example on how neutron scattering can be used to probe the structure of very diverse systems.
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Strain enables new applications of 2D materials

NanoWerk.com - Tue, 05/21/2019 - 22:35
Scientists are pleased to find that the application of mechanical strain appears to manipulate the conductivity of low-dimensional materials, including graphene.
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Laser focus shines light on how nanoparticles form

NanoWerk.com - Tue, 05/21/2019 - 22:27
Supercomputer tells origin story of nanoparticle size distributions with large-scale simulations.
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Noteworthy nanotechnology book releases May 2019

NanoWerk.com - Tue, 05/21/2019 - 22:16
A collection of interesting, newly published nanotechnology books.
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Predicting properties of composite materials

ScienceDaily.com: Nanotechnology News - Tue, 05/21/2019 - 20:45
Can the properties of composite materials be predicted? Scientists have mastered this feat and thus can help achieve research objectives faster. This leads, for instance, to better recycling techniques and electrically conductive synthetic materials for the solar industry.
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Mathematical technique quickly tunes next-generation lenses

NanoWerk.com - Tue, 05/21/2019 - 18:12
Metasurfaces that manipulate light at tiny scales could find uses in cellphone lenses, smart-car sensors, and optical fibers.
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Infographic: Understanding graphene

NanoWerk.com - Tue, 05/21/2019 - 17:50
Nanowerk has put together an infographic that summarizes key properties, facts and application areas of graphene.
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Some of our foods have nanoparticles in them - should we be worried?

NanoWerk.com - Tue, 05/21/2019 - 17:15
Some people are concerned nanoparticles may present health risks. Here's what we know about nanotechnology in food.
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How to program materials

NanoWerk.com - Tue, 05/21/2019 - 12:01
Can the properties of composite materials be predicted? Scientists have mastered this feat and thus can help achieve research objectives faster. This leads, for instance, to better recycling techniques and electrically conductive synthetic materials for the solar industry.
Categories: English news

Improving the performance of carbon nanotube fibers

NanoWerk.com - Tue, 05/21/2019 - 10:53
Carbon nanotube (CNT) fiber is an important one-dimensional macroscopic material. The directional assembly of CNTs can help the fiber realize high mechanical, high electrical and high thermal performance. By introducing thermosetting polymer between the carbon nanotube fibers, the cured polymer can overcome the weak van der Waals interaction between the CNTs and further improve the fiber thermal transport. This results in an effective improvement in thermal conductivity and mechanical properties of CNT fibers.
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Using plant viruses as nanoparticles for targeted pesticide delivery

NanoWerk.com - Tue, 05/21/2019 - 10:15
Scientists have discovered that a biological nanoparticle - a plant virus - is capable of delivering pesticide molecules deeper below the ground, to places that are normally beyond their reach.
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Why are gels elastic?

NanoWerk.com - Tue, 05/21/2019 - 00:20
New research shows how clustered particles determine elasticity of some gels.
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Ultra-thin superlattices from gold nanoparticles for nanophotonics

NanoWerk.com - Tue, 05/21/2019 - 00:09
Researchers have come up with a simple yet precise technique for developing highly ordered particle layers. They are using tiny, soft and deformable spherical polymer beads with a hydrogel-like structure.
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'Spider-like senses' could help autonomous machines see better

ScienceDaily.com: Nanotechnology News - Mon, 05/20/2019 - 23:30
Researchers are building 'spidey senses' into the shells of autonomous cars and drones so that they could detect and avoid objects better.
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How plant viruses can be used to ward off pests and keep plants healthy

ScienceDaily.com: Nanotechnology News - Mon, 05/20/2019 - 19:56
Imagine a technology that could target pesticides to treat specific spots deep within the soil, making them more effective at controlling infestations while limiting their toxicity to the environment. Researchers have taken a step toward that goal. They discovered that a particular plant virus can deliver pesticide molecules deeper below the ground, targeting places normally beyond their reach.
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Magnetically propelled MOFBOTs perform microrobotic drug delivery (w/video)

NanoWerk.com - Mon, 05/20/2019 - 19:10
By applying concepts developed in micro- and nanorobotics, researchers demonstrate the controlled motion and delivery of cargo payloads embedded in metal-organic frameworks (MOFs). The helical MOF-based micromachine, propelled by artificial bacterial flagella, can swim and follow complex trajectories in three dimensions under the control of weak rotational magnetic fields. These swimmers are tumor-responsiv and can act as selectively automated and targeted drug delivery platforms.
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