Plastics in Waveguide Application

Ahmad, Zulkifli; Rahman, Andey

doi:10.1016/b978-0-12-820352-1.00163-2

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…In this process, the film designed/patterned by etching is covered by another layer of pattern that is resistant to an etchant ( Figure 6 A,B). The layer to be patterned is the metal film, and the masking layer is often a designed/patterned photoresist film [ 145 ]. The etchants used for wet etching are classified into isotropic and anisotropic ( Figure 7 ).…”

Section: Techniques Of Preparation Of Mns (Mns)mentioning

confidence: 99%

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Kulkarni¹,

Damiri

Rojekar

et al. 2022

Pharmaceutics

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Microneedle (MNs) technology is a recent advancement in biomedical science across the globe. The current limitations of drug delivery, like poor absorption, low bioavailability, inadequate skin permeation, and poor biodistribution, can be overcome by MN-based drug delivery. Nanotechnology made significant changes in fabrication techniques for microneedles (MNs) and design shifted from conventional to novel, using various types of natural and synthetic materials and their combinations. Nowadays, MNs technology has gained popularity worldwide in biomedical research and drug delivery technology due to its multifaceted and broad-spectrum applications. This review broadly discusses MN’s types, fabrication methods, composition, characterization, applications, recent advancements, and global intellectual scenarios.

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Section: Techniques Of Preparation Of Mns (Mns)mentioning

confidence: 99%

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Kulkarni¹,

Damiri

Rojekar

et al. 2022

Pharmaceutics

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“…Recently, fast and low-cost holography techniques have been used to fabricate miniature optical devices (lenses, diffusers, and gratings) [18][19][20]. The soft lithography-based surface imprinting fabrication/replication method is relatively lower cost, with an uncomplicated setup, high throughput, and more appealing pattern resolution in the micro to the nanoscale with high precision [21,22].…”

Section: Introductionmentioning

confidence: 99%

Mechanically Tunable Flexible Photonic Device for Strain Sensing Applications

2023

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Flexible photonic devices based on soft polymers enable real-time sensing of environmental conditions in various industrial applications. A myriad of fabrication techniques have been established for producing optical devices, including photo and electron-beam lithography, nano/femtosecond laser writing, and surface imprinting or embossing. However, among these techniques, surface imprinting/embossing is simple, scalable, convenient to implement, can produce nanoscale resolutions, and is cost-effective. Herein, we utilize the surface imprinting method to replicate rigid micro/nanostructures onto a commonly available PDMS substrate, enabling the transfer of rigid nanostructures into flexible forms for sensing at a nanometric scale. The sensing nanopatterned sheets were mechanically extended, and the extension was remotely monitored via optical methods. Monochromatic light (450, 532, and 650 nm) was transmitted through the imprinted sensor under various force/stress levels. The optical response was recorded on an image screen and correlated with the strain created by the applied stress levels. The optical response was obtained in diffraction pattern form from the flexible grating-based sensor and in an optical-diffusion field form from the diffuser-based sensor. The calculated Young’s modulus in response to the applied stress, measured through the novel optical method, was found in a reasonable range compared to the reported range of PDMS (360–870 kPa) in the literature.

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“…The large number of hydroxyl groups on the EC backbone lends itself to chemical modification by oxidation, silylation, and electrostatic interaction reactions. Placing epoxy groups, amine groups, -SH, and hydroxyl groups at the ends and sides of the copolymer is essential for high temperature applications [31]. Modifying the surface of silica particles with -NH 2 and -SH groups is beneficial to the adsorption of nanoparticles, whereas modification with -CH 3 and -PPh 2 groups is not conducive to the adsorption of nanoparticles [32].…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Aroma Mitigation and Fragrance Analysis of Ethyl Cellulose/Silica Hybrid Microcapsules for Scented Fabrics

et al. 2022

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Microencapsulation can improve the thermal stability of a fragrance, and composite wall materials are one way to further improve the thermal stability of microcapsules. This paper presents a facile approach for cotton fabric coatings by using cellulose/silica hybrid microcapsules. Lavender fragrance oil-loaded cellulose/silica hybrid microcapsules were one-step synthesized via emulsion solvent diffusion. The prepared microcapsules were found to be spherical in shape with a particle size distribution between 500 to 1000 nm. Due to the slow releasing of lavender fragrance oil in the capsules, the fragrance loss rate of (3-aminopropyl)triethoxysilane (APTES)-, triethoxy(3-glycidyloxypropyl)silane (GPTES)-, and (3-aercaptopropyl)trie-thoxysilane (MPTES)- modified cellulose/silica hybrid microcapsules are 25.2%, 35.1%, and 16.7% after six hours at 120 °C. E-nose and gas chromatography–mass spectrometry (GCMS) studies found that the fragranced cotton fabrics had good retention of characteristic aromas. It provides the basis for the application of the heating treatment of cotton fabrics in sterilization, bleaching, printing, and other processes.

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Plastics in Waveguide Application

Cited by 4 publications

References 19 publications

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Recent Advancements in Microneedle Technology for Multifaceted Biomedical Applications

Mechanically Tunable Flexible Photonic Device for Strain Sensing Applications

High-Temperature Aroma Mitigation and Fragrance Analysis of Ethyl Cellulose/Silica Hybrid Microcapsules for Scented Fabrics

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