Rotating Cylinder‐Assisted Nanoimprint Lithography for Enhanced Chemisorbable Filtration Complemented by Molecularly Imprinted Polymers

Abstract

Rotating cylindrical stamp‐based nanoimprint technique has many advantages, including the continuous fabrication of intriguing micro/nanostructures and rapid pattern transfer on a large scale. Despite these advantages, the previous nanoimprint lithography has rarely been used for producing sophisticated nanoscale patterns on a non‐planar substrate that has many extended applications. Here, the simple integration of nanoimprinting process with a help of a transparent stamp wrapped on the cylindrical roll and UV optical source in the core to enable high‐throughput pattern transfer, particularly on a fabric substrate is demonstrated. Moreover, as a functional resin material, this innovative strategy involves a synergistic approach on the synthesis of molecularly imprinted polymer, which are spatially organized free‐standing perforated nanostructures such as nano/microscale lines, posts, and holes patterns on various woven or nonwoven blank substrates. The proposed materials can serve as a self‐encoded filtration medium for selective separation of formaldehyde molecules. It is envisioned that the combinatorial fabrication process and attractive material paves the way for designing next‐generation separation systems in use to capture industrial or household toxic substances.

Laser‐Assisted Structuring of Graphene Films with Biocompatible Liquid Crystal Polymer for Skin/Brain‐Interfaced Electrodes

“…[41,42] As shown in Figure 2a, we demonstrated a simple technique for the transfer printing process of an array of example LIG electrodes (8 × 8 array: 64 in total) onto a polyethylene terephthalate (PET) film on a large scale, utilizing a customized roll-toplate apparatus. [43] An initially fabricated LIG-based electrode array formed on the LCP film was wrapped around a quartz roll (Young's modulus ≈ 70 GPa, diameter: 100 mm, right panels in Figure 2a), and then mounted on the moving stage. As schematically illustrated in Figure 2b, during the control of the bottom stage moving at a speed (100 μm s −1 ), a firmly fixed adhesivecoated transparent PET film entirely transferred the LIG electrodes located on the LCP film with an optimized pressure (0.5 MPa) from the roll by continuously providing a localized conformal contact area.…”

Microstructures Formation through Liquid‐Assisted Assembly of Functional Materials for High‐Performance Electronics

“…Reproduced with permission. [88] Copyright 2021, John Wiley and Sons. h) Schematic structure of the chiral unit.…”

Low-Shrinkage and Degradable UV Imprint Lithography Based on Biomass-Derived Epoxidized Soybean Oil and Cardanol

“…As a necessary microstructure molding technology, UV imprint lithography (UV-IL) has attracted tremendous attention due to its advantages of convenience and high efficiency. − However, there are still some problems that greatly limit the further application of UV-IL. First of all, the photoresist will produce serious volume shrinkage during the curing process, which makes the resolution of the pattern deteriorate or even distort, and therefore cannot meet the application requirements.…”