ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Shuitao Gao,Wenkai Wang,Tongyue Wu,Shasha Jiang,Jinwan Qi,Zhiyang Zhu,Bin Zhang,Jianbin Huang,Yun Yan
Adhesives are crucial both in nature and in diversified artificial fields, and developing environment-friendly adhesives with economic procedures remains a great challenge. We report that folic acid-based coacervates can be a new category of excellent adhesives for all kinds of surfaces with long-lasting adhesiveness. Aided by the electrostatic interaction between the π–π stacked folic acid quartets and polycations, the resultant coacervates are able to interact with diversified substrates via a polyvalent hydrogen bond, coordination, and electrostatic interactions. The adhesivity to wood is superior to the strong commercial glues, but without releasing any toxic components. Upon evaporating water, the coacervate can be casted into a non-adhesive flexible self-supporting film, which restores the adhesive coacervate immediately on contacting water with original adhesive ability. In this way, the coacervate can be facilely tailored into a double-sided tape (DST), which is convenient for storage and application under ambient conditions. Given its excellent adhesive performance, release of nontoxic gases, and convenience in storage and application, the folic acid-based DST is very promising as a new adhesive material.
研究领域:
材料科学
·
生物化学
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产品关联
DOI
PubMed
高影响因子
Journal of Water Process Engineering
·
2025
·
IF 6.7
Jingrui Wei,Shutao Zhou,Wei Yao,Qiufu Zeng,Mengai Song,Ming Duan,Shuai Liu
Immobilizing the photocatalyst on solid substrates is considered a state-of-the-art technical requirement, which can address the separation problem for the reuse of nano photocatalytic materials. Graphite-like carbon nitride (g-C 3 N 4 ) shows excellent properties as an unconventional photocatalyst, but the surface with inert functional groups makes it difficult to produce strong adhesion to the substrate surface. Herein, nano g-C 3 N 4 was fixed on the transparent substrate with double-sided adhesive tape (DSAT), forming an uncomplicated and stable photocatalytic reaction platform for organic wastewater treatment. g-C 3 N 4 film is located at the outer bottom side of the platform, which can avoid the shading effect of sewage turbidity on the photocatalyst. Furthermore, the substrate and DSAT are transparent, thus the influence on the light absorption of g-C 3 N 4 can be negligible. The prepared g-C 3 N 4 film (520 nm) consists of one layer of the dispersed g-C 3 N 4 particles (590 nm). At low catalyst dosage (62.5 ppm), the absorption of g-C 3 N 4 film exceeds 90 % in 200–800 nm. The normalized photocatalytic degradation rate constant of the suspended g-C 3 N 4 and g-C 3 N 4 film are 0.280 h −1 and 0.423 h −1 for 80 mL Rhodamine B solution (10 mg/L), respectively. When the rotation speed increased from 0 RPM to 250 RPM, the rate constant could increase 3 times from 0.139 h −1 to 0.608 h −1 . Besides, the film's photocatalytic activity could be retained after 20 times of reuse, which shows the film has good recyclability. Compared with the suspended g-C 3 N 4 , the prepared film has obvious advantages in light absorption utilization, the photocatalytic performance and recovery.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
SENSORS
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2019
·Vol. 19
·期 19
·4082
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IF 3.031
Peng Yu,Muhan Deng,Yi Yang
A simple, low-cost technique has been developed for the rapid fabrication of single-layered paper-based microfluidic devices (μPADs). This technique, for the first time, made use of the deposition of patterned adhesive tape into the filter paper to construct hydrophobic barriers, with the help of toluene. Unlike other reported multi-layered μPADs that merely made use of adhesive tape as a separate layer for sealing or fluid flow controlling, the patterned adhesive tape was simultaneously dissolved and penetrated into the filter paper, which resulted in the successful transfer of the pattern from the tape to the filter paper. To demonstrate the effectiveness of this approach, nitrite and glucose were individually measured; detection limits as low as 0.015 ± 0.004 mM and 0.022 ± 0.006 mM were reported for nitrite and glucose, respectively. Multiplexed analysis of both analytes was also carried out with respective detection limits of 0.048 ± 0.005 mM and 0.025 ± 0.006 mM for nitrite and glucose. The application of the method was demonstrated by measuring nitrite and glucose in spiked artificial urine samples and satisfied recovery results were obtained.Keywords:paper-based microfluidic devices;colorimetry;adhesive tape;nitrite;glucose
研究领域:
分析化学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
MATERIALS SCIENCE FORUM
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2016
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IF 0
Wei Liang Liu,Min Wu,Zhong Tao Shi,Zhao Liang Xu,Jie Ping Ruan
B4C ceramic tapes were prepared by aqueous tape-casting with boron carbide powders as starting material, deionized water as solvent, polymine (PEI) as dispersant, polyethylene glycol (PEG) as plasticizer, poval (PVA) or gelatin as binders. The influences of pH, dispersant content, kind and content of binder on the stability and rheological property of tape slurries were studied. The experimental results indicated that, when the pH was ranged in 3-4, the slurries with good stability and good rheology could be obtained with 0.8 wt% PEI, 4.0 wt% PVA or 6.5 wt% gelatin. PVA as binder made cast tape with certain strength, and gelatin as binder made cast tape with poor strength.
研究领域:
材料科学
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陶瓷工程
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DOI
NPG Asia Materials
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2019
·Vol. 11
·期 1
·1-9
·
IF 8.052
Wan Xizi,Gu Zhen,Zhang Feilong,Hao Dezhao,Liu Xi,Dai Bing,Song Yongyang,Wang Shutao
Janus films with asymmetric properties on opposite sides have been widely used to facilitate energy storage, ion transport, nanofiltration, and responsive bending. However, studies on Janus films rarely involve controlling surface adhesion, either dry or wet adhesion. Herein, we report Janus adhesive tape with an asymmetrically crosslinked polydimethylsiloxane (PDMS) network prepared through an interfacial hydrosilylation strategy, realizing wet/dry amphibious adhesion on various solid surfaces. The lightly crosslinked side of the Janus adhesive tape acts as an adhesive layer with high adhesion, and the highly crosslinked side functions as a supporting layer with high mechanical strength. This Janus adhesive tape with good adhesion and mechanical properties can be dyed different colors and can act as an underwater adhesive and a skin adhesive for wearable electronic devices. This study provides a promising design model for next-generation adhesive materials and related applications.
研究领域:
材料科学
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界面化学
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生物医学工程
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DOI
高影响因子
NANO LETTERS
·
2021
·
IF 11.189
Yi Yang,Yachao Zhang,Yanlei Hu,Guoqiang Li,Cong Zhang,Yuegan Song,Longfu Li,Caiding Ni,Nianwei Dai,Yong Cai,Jiawen Li,Dong Wu,Jiaru Chu
Natural organisms can create various microstructures via a spontaneous growth mode. In contrast, artificial protruding microstructures are constructed by subtractive methods that waste materials and time or by additive methods that require additional materials. Here, we report a facile and straightforward strategy for a laser-induced self-growing mushroom-like microstructure on a flat surface. By simply controlling the localized femtosecond laser heating and ablation on the poly(ethylene terephthalate) tape/heat-shrinkable polystyrene bilayer surface, it is discovered that a mushroom-like architecture can spontaneously and rapidly grow out from the original surface within 0.36 s. The dimension of the re-entrant micropillar array (cap diameter, pillar spacing, and height) can be accurately controlled through the intentional control of laser scanning. Followed by a fluorination and spray coating, the obtained surface can realize the repellency and manipulation of oil droplets. This work provides new opportunities in the fields of microfabrication, microfluidics, microreactor engineering, and wearable antifouling electronics.
研究领域:
材料科学
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微纳米技术
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表面工程
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Materials Science
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2022
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IF 0
Ling Wang,Lisheng Wu,Yuqing Wang,Junchen Luo,Huaiguo Xue,Jiefeng Gao
Conductive polymer composites (CPCs) strain sensors exhibit promising applications in flexible electronics, people’s health monitoring, etc. It remains a big challenge to develop a simple and cost-effective method to prepare CPCs with high conductivity, corrosion resistance, strong interfacial adhesion and high sensitivity. Here, we propose a facile “drop-casting and fluorination” strategy to fabricate superhydrophobic and highly electrically conductive coating by Ag precursor adsorption onto a commercially available elastic tape, subsequent chemical reduction and final fluorination. The Ag nanoparticles could not only construct the electrically conductive network but also greatly enhance the surface roughness. The contact angle and electrical conductivity of the coating can reach as high as 156° and 126 S/cm, respectively. When used for strain sensing, the superhydrophobic and conductive coating shows a high gauger factor (up to 7631 with the strain from 44% to 50%) and outstanding recyclability. The strain sensor could monitor different body joint motions with the stable and reliable sensing signals even after long time treatment in a corrosive solution.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Mingcheng Wang,Hongwei Zhou,Haotian Du,Lin Chen,Guoxu Zhao,Hanbin Liu,Xilang Jin,Weixing Chen,Aijie Ma
Hydrogel strain sensors, which have potential applications in wearable devices, soft robots and human–machine interfaces, etc., are increasingly investigated. But it remains challenging to fabricate hydrogel strain sensors with integrated wearability and high sensing performances. To address this issue, we herein propose a cyclic freezing-thawing approach to layered Janus hydrogel tapes for wearable strain sensors. The hydrogel tapes are composed of an adhesive poly(vinyl alcohol)/phytic acid (PVA/PA) layer and a non-adhesive poly(vinyl alcohol)/polyaniline (PVA/PANI) layer and exhibit controllable flexibility and approximate elastic modulus to soft tissues. A robust interface forms between the two layers and the interfacial peeling force reaches 114.6 N/m. Strain sensors assembled from the Janus hydrogel tapes achieve low response time (loading: 60 ms, unloading: 62 ms), reversible response and high sensitivity (gauge factor: 3.4). Interestingly, such strain sensors can be further integrated with a Bluetooth system to fabricate wireless wearable sensors for convenient monitoring of physiological activities such as walking, squatting, stair climbing, etc. Overall, this work will provide not only a new approach to Janus hydrogels, but also a new clue for developing functional flexible devices.
研究领域:
材料科学
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生物医学工程
·
传感技术
✓ 已验证
产品关联
DOI
高影响因子
Plasmonics
·
2019
·Vol. 14
·期 5
·1105-1111
·
IF 2.926
Zhang Yuchao,Teng Yuanjie,Ren Zeyu,Shi Qianwei
Herein, a novel in situ surface-enhanced Raman scattering (SERS) method was proposed based on the prepared SERS substrate with good flexibility, excellent optical transparency, and high SERS activity. The SERS substrate was fabricated through the Au colloids injected with an ethanol and hexane mixture to form Au monolayer film (Au MLF) on the water/oil interface and followed by transferred to the sticky side of transparent tape after hexane volatilization. Transmission electron microscopy and scanning electron microscopy revealed that Au NPs with particle sizes of 25 nm were densely assembled and evenly distributed on the flexible and transparent tape. This Au MLF/tape was directly covered on the irregular shape samples and the detection signal was collected by the laser transmitting into the tape and interacting with the analytes. The optimal SERS signal intensity was obtained by tuning the concentration of Au colloid and addition volume of the mixture of ethanol and hexane to regulate the numbers of Au NPs on water/oil interface. The SERS intensity of six sample points selected randomly show a good repeatability with RSD = 4.92% ( n = 6 × 8) and satisfying uniformity with RSD of 8.6% within an area of 4.0 × 4.0 μm. Also, the obtained Au MLF/tape SERS substrate showed good detection accuracy and recovery when used to detect residual malachite green (MG) residue on the surfaces of real fish samples with detection limit of 0.04 μmol/L ( S / N = 3). Therefore, the developed Au MLF/tape SERS substrate has potential applications in the in situ SERS detection.
研究领域:
分析化学
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材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Teng Li,Xueliang Zhang,Wei Yu,Sijun Liu
The rapid development of wearable devices and soft robotics has an urgent demand for polymer conductors with a switchable adhesion property. Herein, we report a supramolecular ionogel (SIG) that can reversibly switch between adhesion and debonding to various substrates. The on/off switchable adhesion of SIG is attributed to phase separation induced by the aggregation of polymer chains and the formation of a lubricating layer, which impairs the contact between polymer chains and substrates, thus weakening interfacial interaction. The phase separation ionogel (PSIG) is highly sensitive to humidity, leading to the debonded PSIG instantly transforming into the adhesion-hydrated ionogel (HIG) owing to the disruption of phase structure. Based on the switchable adhesion property, this multiresponsive ionogel shows potential applications as a fire alarm and intelligent conductive tape. This work provides a simple method for developing a switchable adhesion ionic polymer conductor and broadens the application of the ionogel in flexible devices.
研究领域:
材料科学
·
柔性电子
·
智能材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Kangning Gao,Minghui He,Yiqiu Li,Yipeng Zhang,Jun Gao,Xixiang Li,Zhonghui Cui,Zhongliang Zhan,Tao Zhang
Garnet electrolyte is a promising candidate for the development of all-solid-state Li-metal batteries, because of its safety and stability against Li metal. However, its practical application is limited by the difficulty in production of its high-density thin sheet. In this work, we have fabricated garnet thin sheet electrolytes (Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 , LLZTO) by tape-casting technique. By using Li 2 O as a liquid-phase sintering additive, a high relative density up to 99% was achieved. Electrochemical results show the LLZTO sheets have an ionic conductivity of 5.2 × 10 −4 S cm −1 at 30 °C and good cycling stability against Li metal. Based on the sheets, all-solid-state Li/LLZTO/LiFePO 4 batteries exhibit excellent reversible cycles at 60 °C and 0.1C with an initial discharge specific capacity of 125.8 mA h g −1 and a retention of 92.3% after 50 cycles. These results indicate that the tape-casting process demonstrated here provides an effective method of producing high-density garnet thin sheet electrolytes for high-performance all-solid-state Li-metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
·
2021
·
IF 2.077
Jinshi Han,Yawei Zhou,Guanghang Bai,Wei Wei,Xiaoya Liu,Xiaojie Li
As silicon wafers become thinner and easier to warp, it is important to improve production efficiency of dies. In the wafer grinding and dicing process, photo-crosslinkable pressure sensitive adhesive (PSA) tapes are applied to fix the silicon wafer and greatly increase die yield. The PSA tapes must be peeled easily without any residues after UV light irradiation. Herein, a hydroxyl group containing copolymer was first synthesized from 2-ethylhexyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate monomers via free radical polymerization, followed by the introduction of methacrylate groups through the addition reaction of 2-isocyanatoethyl methacrylate with hydroxyl groups on side chain of copolymers. The photo-crosslinkable adhesive was then prepared by the mixing the copolymers with photoinitiator and aziridine crosslinker. Glass transition temperature (Tg) and storage modulus of the photo-crosslinked adhesives increased with UV irradiation time, which benefited the picking-up process. A digital microscope was used to observe the surface morphology of the debonded silicon wafers and excellent debonding effect occurred after 40 s UV irradiation.
研究领域:
材料科学
·
半导体制造
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）