ACS Omega
·
2025
·
IF 4.3
Hongmei Bi
Trimethoxy(octadecyl)silane (TODS) was self-assembled on the surface of conductive indium tin oxide (ITO) substrates, and a patterned substrate with distinct hydrophilic and hydrophobic regions was constructed via deep ultraviolet (UV) light (254 nm) etching. The effect of this patterned substrate on lipid vesicle (LV) formation was investigated by using electroformation. Experimental results demonstrated that fluorescence-labeled LVs exhibited bright and dark regions corresponding to the mask design. Specifically, the UV-etched areas were hydrophilic, showing a high fluorescence intensity and a dense population of LVs. In contrast, the unetched regions coated with TODS remained hydrophobic, exhibiting low fluorescence intensity and minimal or no vesicle formation. The presence of bright and dark regions on the substrate, along with the distribution and localization of LVs in these regions, was systematically analyzed. Additionally, the reasons for the varying degrees of vesicle formation within the same dark region were discussed. Through precise surface modification and controlled patterning, it is anticipated that localized formation and spatial regulation of LVs can be achieved.
研究领域:
生物物理学
·
材料科学
·
细胞工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2016
·
IF 3.993
Lei Zhao,Daqun Chen,Weihua Hu
Patterning metal films on various substrates is essentially important and yet challenging for developing a wide variety of innovative devices. We herein report a versatile approach to pattern metal (gold, silver, or copper) films on arbitrary substrates by using the bio-inspired polydopamine (PDA) thin film as a UV-sensitive adhesive layer for electroless deposition. The PDA film is able to be formed on virtually any solid surfaces under mild condition, and its rich catechol groups allow for electroless deposition of metal films with high adhesion stability. Upon UV irradiation, spatially selective oxidation of PDA film occurs and the local metal deposition is inhibited, thus facilitating successful patterning of metal films. Considering its versatility and simplicity, this strategy may demonstrate great applications in manufacturing various innovative devices.
研究领域:
材料科学
·
表面工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Weilan Liu,Lingfeng Zhao,Yizhou Shen,Zihao Zhang,Yaru Ni,Xu Fu,Yuebin Lin,Liying Chen,Chengfeng Shen
The rapid movement of electrons during electrical heating produces electromagnetic shielding phenomena (along with an increase in the dielectric constant), which severely hampers the transmission of electromagnetic waves. We propose a patterned structure based on an electrically heated film that enables efficient surface heating and high wave-transmittance. In this paper, the structure exhibits a transmittance greater than 50 % in the 2–18 GHz band and excellent transmittance exceeding 80 % in the 2–8.88 GHz band under vertically incident TM-polarized electromagnetic waves (parallel polarized or vertically polarized wave). The de-icing experiments demonstrated the excellent heating efficiency and fast electrothermal response time of the structure. At a loading power of 4629.6 W/m2, the surface temperature of the structure reached 50.6 °C after 110 s, resulting in the shedding of surface ice. This work proposes a coupling strategy between wave transparency and electro-thermal performance, which is important for promoting the development of integrated structures with stealth/de-icing capabilities.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULES
·
2025
·
IF 5.2
Xinyuan Wan,Kai Gou,Yongqi Liu,Jingzhi Tang,Qiuli Tan,Gengsheng Weng
A photoresponsive Fe3+-cross-linked poly(acrylic acid) hydrogel showing tunable healing, photopatterning, and light sensing is reported. The hydrogel is fabricated by simply mixing acrylic acid, Ag+, ammonium persulfate, Fe3+, and citric acid in water at room temperature. A gelation kinetics investigation demonstrates a short network occurrence time of 86 ± 3.5 s. The citric acid in the hydrogel inhibits covalent cross-linking and enables the photocleavage of Fe3+-COOH cross-linking by reducing Fe3+ to Fe2+, resulting in a solid-to-liquid transition. When the oxidizer H2O2 or O2 is imposed on the photoliquefied hydrogel, the Fe3+-COOH cross-linking is restored and the liquid-to-solid transition can be achieved. The photoresponsive hydrogel is demonstrated to be self-healable due to the dynamic nature of Fe3+-COOH cross-linking. It also shows fast light/H2O2-assisted healing through time-controlled photoliquefaction. The hydrogel sheet is also used to print portraits of people and a photo of a dog by photopatterning. We finally demonstrate that the hydrogel shows reversible electric resistance change in response to photoirradiation. We expect that the COOH-containing monomer/APS/CA/metal ion gelation chemistry can not only serve as a general strategy to readily and rapidly produce healable hydrogels, but also enrich the toolbox of manufacturing photopatterning materials and light sensors.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Mengting Jin,Yunxiao Zhang,Jiajia Zhang,Guojin Liu,Wanbin Ma,Liqin Chai
How to establish a fast, remarkable, and different external stimulus response mechanism between similar “patterns” and “backgrounds” is a key issue in the design and preparation of invisible printed fabric based on photonic crystals. SiO 2 and P(St-MAA) were used to construct photonic crystals, which were used as “patterns” and “backgrounds” to prepare patterned invisible printed fabric. It also reveals the relationship between the size of the structural unit and the reflection wavelength of the photonic crystals and adjusts the structure of the two parts of the photonic crystals by controlling the particle size of the microspheres so that the “pattern” can achieve the effect of “invisible in the air, visible in the water.” It has a simple external stimulus, fast response speed, and remarkable response, and it is easy to observe and difficult to copy. It is expected to be further expanded in combination with inkjet printing technology and to obtain promising applications in textile anticounterfeiting and identification marking.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Liang Jiang,Long Zhang,Xinjian He,Mengke Tang,Cunmin Wang,Chao Xu,Xiang Li,Xuanjin Zhu,Ruizi Chen,Yifan Zhang,Jiang Shao,Mingming Zhang,Yabin Zhu,Huan Xu
The advent of multifunctional nanofibrous membranes (NFMs) has led to the development of next-generation air filters that are ready to intercept fine particulate matters (PMs) and monitor the respiratory diseases. However, it is still challenging to fabricate biodegradable NFMs featuring the desirable combination of high filtration efficiencies, low air resistance, and intelligent real-time monitoring. Herein, a hierarchical nanopatterning approach was proposed to functionalize the stereocomplexed poly(lactic acid) (PLA) (SC-PLA) nanofibers via the combined electrospinning of SC-PLA and electrospray of CNT@ZIF-8 nanohybrids. The nanopatterned SC-PLA (NSC-PLA) NFMs were characterized by largely increased surface activity and electroactivity, as evidenced by the nearly two-fold increase in surface potential (up to 7.3 kV) and substantial improvements in the dielectric properties. Furthermore, the NSC-PLA NFMs exhibited excellent tribo-output performance, yielding a voltage of as high as 13.5 V for NSC-PLA NFMs loaded 10 % nanohybrids (NSC-PLA10). In particular, the exceptionally high electroactivity and unique protrusion structure together contributed to promote the filtration efficiencies, while providing a low pressure drop (e.g., 96.1 % for PM 2.5 and 88.3 % for PM 0.3 , only 67.6 Pa of NSC-PLA10, at 32 L/min). More importantly, NSC-PLA NFMs enabled real-time monitoring of physiological signals during different respiratory states, as evidenced by the output voltages of 17.2, 32.9 and 37.5 mV for normal breath, fast breath and cough recorded by NSC-PLA10. The proposed NSC-PLA NFMs show enormous potential in the fields of air filtration and real-time respiratory monitoring, thus providing ecofriendly solutions to personal health management.
研究领域:
材料科学
·
环境科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zhaoxiang Yang,Xu Yan,Beihang Xu,Zhenhao Wang,Yapei Wang
Patterning hydrogels on polymer surfaces is of great significance in widespread fields from bionic technology to materials science. Herein, a simple and universal writing/printing strategy for precisely patterning hydrogels on polymer surfaces with robust adhesion is reported. This strategy allows to construct surface patterns with discretionary shape and adjustable thickness of hydrogel coatings with micrometer resolution in a format that is convenient for large-scale manufacturing. The hydrogel pattern is formed by defining the region of the precursor solution, rather than the region that defines the initiator or UV, to avoid imprecise results due to initiator or thermal diffusion. Moreover, sufficient amounts of precursor solutions are widely distributed on the pretreated surfaces to minimize the effects of ambient oxygen and moisture. This strategy opens up new possibilities for the design and fabrication of new-generation surface-patterned soft materials. Based on our applicable demonstrations, the patterned hydrogel coatings show great potentials for multi-drug loaded skin patches, microreactors, and transparent ion sensors.
研究领域:
材料科学
·
仿生技术
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Chao Nan Zhu,Tianwen Bai,Hu Wang,Wei Bai,Jun Ling,Jing Zhi Sun,Feihe Huang,Zi Liang Wu,Qiang Zheng
Bioluminescence is widespread in nature such as the jellyfish, which inspires scientists to design polymer hydrogels with tunable fluorescence. However, it remains a big challenge to develop white-light-emitting hydrogels with local tunability of the fluorescent behavior. Herein, we report a white fluorescent hydrogel prepared by one-pot micellar copolymerization of hydrophilic acrylamide and hydrophobic single donor–acceptor chromophore monomer, in which the unimer and the dimer of the chromophore coexist and generate high- and low-energy emission, respectively, under excitation. The fluorescent behavior of the hydrogel can be well tuned by phototreatment or heat treatment that induces unimer-to-dimer transformation of the chromophore and thus variation of the fluorescent color from blue to white and then to yellow. The fluorescence can also be reversibly switched off by forming terpyridine–Cu2+ chelate complexes and recovered by using chelating agent to extract the Cu2+ ions out of the gel matrix. These properties afford patterning the fluorescent hydrogel, which is transparent under daylight yet shows the pattern under ultraviolet light. These patterned fluorescent hydrogels should find applications in protected message display for improved information security.
研究领域:
材料科学
·
高分子化学
·
生物仿生学
✓ 已验证
DOI
高影响因子
Soft Matter
·
2022
·Vol. 18
·期 11
·2149-2156
·
IF 4.046
Li Xin Hou,Hongyao Ding,Xing Peng Hao,Chao Nan Zhu,Miao Du,Zi Liang Wu,Qiang Zheng
Fluorescent hydrogels have attracted tremendous attention recently in the field of information security due to the booming development of information technology. Along this line, it is highly desired to improve the security level of concealed information by the advancements of materials and encryption technologies. Here we report multi-level encryption of information in a bilayer hydrogel with shape-morphing ability and patterned fluorescence. This hydrogel is composed of a fluorescence layer containing chromophore units in the poly(acrylic acid) network and an active layer with UV-absorption agents in the poly(N-isopropylacrylamide-co-acrylic acid) network. The former layer exhibits tunable fluorescence tailored by UV light irradiation to induce unimer-to-dimer transformation of the chromophores, facilitating the write-in of information through photolithography. The latter layer is responsive to temperature, enabling morphing of the bilayer hydrogel. Therefore, the bilayer hydrogel encoded with patterned fluorescent patterns can deform into three-dimensional configurations at room temperature to conceal the information, which is readable only after successive procedures of shape recovery at an appropriate temperature and under UV light irradiation from the right direction. The combination of morphing materials and patterned fluorescence as a new avenue to improve the encryption level of information should merit the design of other smart materials with integrated functions for specific applications.
研究领域:
材料科学
·
信息安全
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-13
·
IF 36.3
Du Chunyu,Hu Yue,Xiao Xiao,Manshaii Farid,Liang Lirong,Chen Jun,Chen Guangming
A novel photobase generator is specifically designed for the fabrication of high-resolution sensing devices.
Similarities in pain perception mechanism between thermoelectric-based artificial thermoreceptor and biological nociceptor.
Emulation common nociceptive behaviors and pain response under excessive temperature stimuli.
研究领域:
生物医学工程
·
材料科学
·
神经生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Xiuyu Nie,Mingzhang Xiong,Jing Zeng,Chenggang Li,Yue Chen,Zushun Xu,Wen Fan
Nanoscale structuring of gallium-based liquid metals has emerged as a promising approach for generating unique properties and functionalities in advanced materials and devices. However, their exceptionally high surface tension presents significant challenges for achieving surface nanostructuring using conventional fabrication techniques. Here, a hypergravity nanoimprinting method is introduced, which harnesses horizontal centrifugation to generate hypergravity fields that drive liquid gallium into nanoscale cavities on an elastic polymer stamp surface at subzero temperatures, where it solidifies and preserves imprinted features down to 100 nm lateral resolution. This surpasses previous limits of gallium patterning, enabling phenomena such as iridescent structural colors with a wide range of hues and high saturation. Numerical simulations reveal the intricate fluid dynamic behaviors and interfacial interactions during the imprinting process, providing valuable insights for process optimization and control. By synergistically combining advanced soft lithography techniques with the reversible solid-liquid phase transition properties of liquid metals, hypergravity nanoimprinting offers a practical nanofabrication approach, facilitating the development of next-generation nanoscale gallium devices with finely structured nanofeatures across diverse application domains, such as nanoelectronics and photonic metamaterials.
研究领域:
材料科学
·
纳米技术
·
光学工程
✓ 已验证
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2024
·
IF 4.5
Hanlin Du,Yueting Deng,Xingyu Hu,Juan Peng,Huan Hu,Yun Tang,Xu Ye,Jajun Ma,Junxiao Yang
Low dielectric photoinduced patterned materials have attracted extensive attention owing to their potential applications in integrated circuits and semiconductor devices. In this work, we synthesized a low dielectric polymer that can be used for photolithography. The monomer, 1-(4-vinylphenyl)-2-(4-benzocyclobutenyl)ethene (DVB-S-BCB), was synthesized from divinylbenzene (DVB) and 4-bromobenzocyclobutene (4-BrBCB) using the Heck reaction. Subsequently, P-DVB based on DVB-S-BCB was prepared by anionic polymerization . As the structure comprised thermally curable benzocyclobutene (BCB) groups and photocurable vinyl groups (UV/Thermal dual curing structure), P-DVB has been used for high-performance negative photosensitive resin with 2,6-bis(4-azidobenzylidene) cyclohexanone (BAC) as a photoinitiator. Photolithography was carried out using a 365-nm UV light source to obtain various patterns, and the research results indicate that photosensitive resins exhibit stable patterning processes at different curing stages. Besides, the cured P-DVB exhibited high thermal stability (T 5% above 420 °C in N 2 ), low dielectric constant (2.55 at 10 MHz), low dielectric loss (1.56 × 10 −3 at 10 MHz), and excellent mechanical performance. These properties make P-DVB a potential photoresist that can be widely used as interconnected dielectrics.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）