A review on piezo- and pyroelectric responses of flexible nano- and micropatterned polymer surfaces for biomedical sensing and energy harvesting applications

Surmenev, Roman A.; Chernozem, Roman V.; Pariy, Igor O.; Surmeneva, Maria A.

doi:10.1016/j.nanoen.2020.105442

Cited by 146 publications

(82 citation statements)

References 104 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, under carefully adjusted conditions, the created structure is highly ordered. In combination with intrinsic chemical and physical properties, material has been considered to various applications [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Amongst other materials, it offers fabrication simplicity and tailor-engineering versatility combined with the unprecedented self-ordered regularity as compared to other nanoporous materials [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

View full text Add to dashboard Cite

The development of aluminum anodization technology features many stages. With the story stretching for almost a century, rather straightforward—from current perspective—technology, raised into an iconic nanofabrication technique. The intrinsic properties of alumina porous structures constitute the vast utility in distinct fields. Nanoporous anodic alumina can be a starting point for: Templates, photonic structures, membranes, drug delivery platforms or nanoparticles, and more. Current state of the art would not be possible without decades of consecutive findings, during which, step by step, the technique was more understood. This review aims at providing an update regarding recent discoveries—improvements in the fabrication technology, a deeper understanding of the process, and a practical application of the material—providing a narrative supported with a proper background.

show abstract

Section: Introductionmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

View full text Add to dashboard Cite

show abstract

“…Kinetics of surface‐enhanced Raman scattering further reveals the increased portion of β phase as irradiation proceeds (Figure 2f). The content of β phase can be calculated according to the formula [ 43,44 ]

\begin{matrix} F (β) = \frac{I_{β}}{(\frac{K_{β}}{K_{α}}) I_{α} + I_{β}} \end{matrix}

where I α and I β are the Raman peak intensities of α and β phases, respectively.

\frac{K_{β}}{K_{α}}

is the ratio of Raman scattering coefficients of β and α phases, which can be obtained from Figure 1a.…”

Section: Resultsmentioning

confidence: 99%

“…Kinetics of surface-enhanced Raman scattering further reveals the increased portion of β phase as irradiation proceeds (Figure 2f). The content of β phase can be calculated according to the formula [43,44] F I…”

Section: Introductionmentioning

confidence: 99%

Plasmon‐Assisted Nanopoling of Poly(Vinyl Difluoride) Films

Chen

Wang

Zhai

et al. 2021

Advanced Optical Materials

View full text Add to dashboard Cite

without post-treatment. [15,16] Common strategies of generating β-phased PVDF include mechanical (stretching, pressing, and shearing) poling, [17][18][19] electric poling, [20] electrospinning, [21][22][23] and other unconventional methods. [24][25][26] These methods always require harsh conditions (high temperature and high voltage) and complicated instruments. In some cases, where the PVDF films are thin (<300 nm), poling can be achieved simply by thermal annealing; [27] however, it has no local selectivity, which is not compatible for integrated piezoelectronic nanodevices.Optical field due to its electromagnetic feature can also be applied for poling molecules. [28][29][30] It has unique advantages of local selectivity, fast modulation, and remote controllability. However, such poling is only transient, which is not useful for bistate devices that require long-term stability.Plasmons, collective oscillations of the free electron gas density at optical frequency, can be a good electromagnetic field condenser as well as an absorber of light. It converts photon energy efficiently into huge amount of local heating, which has been widely used for nanowelding, particle deformation, seawater desalination, and photothermal therapy. [31][32][33][34][35][36][37] By using small gold nanoparticles (Au NPs) as the heating source, it can be potentially used as a nanoheater to selectively pole the PDVF films with light, which is beyond the diffraction limit.In this paper, we show that the thermal effect induced by plasmonic heating can pole the PVDF films. As the plasmonic heating of individual Au NP is in the scale of <10 nm, it provides a facile and efficient strategy for nanophase transformation, which has important applications in piezoelectric nanodevices and high-density data storage. [38,39] Results and DiscussionThe thermal effect can improve the chain movement, which promotes the phase transformation of PVDF. [9,10] As shown in Figure 1a, the PVDF films annealed at 90 °C present a Raman peak at 840 cm −1 (β phase), while the unannealed films show a peak at 797 cm −1 (α phase), which matches the Raman spectrum of the PVDF powders (Figure S1, Supporting Information). This thermal poling is very reproducible to PVDF films of different thicknesses as all of them exhibit the β phase peak after annealing although the intensities are different (Figure 1b). The intensity of α phase peak increases as the PVDF films get thicker, which is because Plasmonic nanoheating can be utilized to induce nanophase transformation, which has important implications for nano-optoelectronics, nanopiezoelectronics, and high-density data storage. Herein, optical poling of poly(vinyl difluoride) (PVDF) is shown with the assistance of surface plasmons. The ultrathin PVDF films are sandwiched between gold nanoparticles (Au NPs) and a gold film. By irradiating the Au NPs with continuouswave laser, nanoannealing of the PVDF films is realized, which locally transforms the PVDF from α phase to β phase as evidenced by Raman spectroscopy. This nanopha...

show abstract

“…The different material strategies and system designs for wireless energy harvesting were recently reviewed in previous studies. [190] Piezoelectric, [191,192] triboelectric, [193][194][195][196] and pyroelectric [197,198] effects are most often exploited to scavenge energy in nanogenerator technologies. Hybridized nanogenerators exploiting intelligent combinations of the aforementioned effects, as well other effects, are also emerging.…”

Section: Manipulation Scalabilitymentioning

confidence: 99%

Light‐Powered Microrobots: Challenges and Opportunities for Hard and Soft Responsive Microswimmers

Bunea

Martella

Nocentini

et al. 2021

Advanced Intelligent Systems

View full text Add to dashboard Cite

30 ms, the helical chiral structure is reverted. Reproduced with permission. [127] Copyright 2017, The Authors, published by Wiley-VCH GmbH. C) Directional movement of an oscillating helix hydrogel-based microstructure confined between two glass surfaces. Reproduced with permission. [127] Copyright 2017, The Authors, published by Wiley-VCH GmbH. D) (Left) Superimposed images of a spiral rotor under irradiation for 0.5 s and relaxation for 0.5 s and (right) superimposition of the thresholded outline of the rotor at different times. Reproduced under the terms of the CC-BY license. [128] Copyright 2019, The Authors, published by Wiley-VCH GmbH. E) LCN-based swimmer microrobots. (Left) Schematic illustration of the bioinspired wormlike travelling wave deformation shape change occurring during homogeneous phase transition or illumination with a patterned light. (Middle, right) Optical images of a microtube displacement under travelling patterned irradiation. (Middle) Green overlays, direction according to green arrows, yellow dashed line is the reference position. (Right) Optical microscopy images of a microdisk locomotion along a square path-the travelling wave direction is indicated by the green arrows, and the disk's direction of travel to the next waypoint by the white arrows. Reproduced with permission. [134] Copyright 2016, Springer Nature.

show abstract

A review on piezo- and pyroelectric responses of flexible nano- and micropatterned polymer surfaces for biomedical sensing and energy harvesting applications

Cited by 146 publications

References 104 publications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Plasmon‐Assisted Nanopoling of Poly(Vinyl Difluoride) Films

Light‐Powered Microrobots: Challenges and Opportunities for Hard and Soft Responsive Microswimmers

Contact Info

Product

Resources

About