ADVANCED MATERIALS
·
2025
·
IF 26.8
Mingqing Zhang,Dongjie Zhou,Yu Zhang,Huanchen Yu,Zhengji Wen,Xiao Dai,Kun Ba,Yunxiang Di,Tong Shu,Jianlu Wang,Jiaming Hao,Meikang Han
Thin-film interference with a Fabry–Pérot cavity is a classic approach to generating structural colors for anti-counterfeiting, sensors, and aesthetical demands. However, an absorbing layer capable of balancing the reflectance and absorption bands remains elusive, thereby limiting the chromatic and luminant tunability of structural coloration. Here wide-color-gamut films are reported with MXene as the absorbing layer in a simple trilayer configuration for vivid structural colors, outperforming conventional metal- and semiconductor-based films. It is demonstrated that the ‘lossy’ refractive indices of different metallic MXene compositions broaden the absorption bandwidth of multilayer films and maintain the high reflectance, enabling a substantial and complementary gamut with high tunability beyond the area of sRGB color space. Various structural color films/patterns based on MXenes showcase the compatibility for different scenarios. The results accompanied by theoretical calculations provide insights into the fundamental understanding of light-MXene interaction in coloration. The unique optical absorbance and solution processibility of the MXene family offer a versatile platform for the physical manipulation of light beyond conventional manufacturing approaches.
研究领域:
光学材料
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纳米光子学
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功能涂层
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材料科学
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表面科学
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仿生光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Haixin Bian,Na Zhang,Hongjuan Li,Jigang Jiang,Guige Hou,Lele Zhou
Different kinds of proteins interact with the digestible lipids in various ways, affecting the adsorption behavior of proteins and digestion. The ordered porous layer interferometry (OPLI) system was constructed by the silica colloidal crystal (SCC) films used to monitor the real-time binding assessment between bovine serum albumin (BSA), casein, fibrinogen, and triolein. The OPLI system reflected the changes in protein mass on the SCC films in real time through the migration of the interference spectrum of the SCC films, which was converted into the changes in optical thickness (ΔOT) that can be monitored. OPLI systematically studied the degradation of proteins by trypsin and found that the lipid layer enhanced the hydrolysis of trypsin to BSA and fibrinogen but weakened the degradation of trypsin to casein. The high OT of the lipid layer (10.45 nm) indicated that trypsin was more likely to adhere to the casein surface on the lipid layer than to hydrolyze casein. In contrast, the reduced OT (−6.40 nm) on the SCC films indicated that trypsin was more inclined to hydrolyze casein than to attach to casein. The OPLI system provided the technical basis for real-time tracking of protein hydrolysis behavior in complex food systems.
研究领域:
食品科学
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生物化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Delian Yang,Deyong He,Ying Huang,Litao Ma,Ruixia Yang,Ming Duan,Shenwen Fang,Yan Xiong
In this work, the interaction performances at octadecane oil–water interface were investigated for zwitterionic surfactants of dodecyl dimethyl hydroxypropyl sulfobetaine (HSB-12) and hexadecyl dimethyl hydroxypropyl sulfobetaine (HSB-16) from both experimental and simulation insights. For macroscopic experiment, optical interferometry methodology was developed to real-time measure the interfacial interaction process and obtain the quantitative interfacial thickness and mass results. The four-step dynamic process (diffusion, adsorption, arrangement and aggregation) was characterized by kinetic analysis, indicating arrangement process as slow-limiting step. The rate of the four step process (diffusion rate k 1 ( d i f ) , adsorption rate k 2 ( a d s ) , arrangement rate k 3 ( a r r ) , and aggregation rate k 4 ( a g g ) ) is represented as k 3 ( a r r ) < k 1 ( d i f ) , k 2 ( a d s ) , k 4 ( a g g ) . The Langmuir model was characterized by thermodynamic analysis, deducing the aggregation spontaneity of HSB-16 > HSB-12. The free energy of the aggregation stages of HSB-16 and HSB-12 was expressed as Δ G a g g ( H S B 16 ) = - 3.95 kJ/mol < Δ G a g g ( H S B 12 ) = - 3.13 kJ/mol. For microscopic simulation, the interaction configurations and interaction energies were obtained through molecular dynamics simulation (MDS) calculation. The interaction stability and interaction strength were indicated to be HSB-16 > HSB-12. The interaction mechanism was explained by proposing molecular-orientation model below critical micelle concentration (CMC) and layer-interaction model above CMC. The different mechanisms were attributed to electronic attraction between surfactant molecules and hydrophobic interaction between surfactant and oil molecules. This work successfully constructs the interfacial platform for oil–water interface analysis, which not only elucidate the surfactant-oil intermolecular interactions but also provide mechanism understanding from macroscopic and microscopic scales.
研究领域:
化学
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材料科学
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界面科学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 5
·412
·
IF 4.4
Tianhong Tang,Deng Hu,Di Lin,Liu Yang,Ziling Shen,Wenchen Yang,Haiyang Liu,Hanting Li,Xiaoyue Fan,Zhiwei Wang,Gang Wang
The niobium oxide dihalides have recently been identified as a new class of van der Waals materials exhibiting exceptionally large second-order nonlinear optical responses and robust in-plane ferroelectricity. In contrast to second-order nonlinear processes, third-order optical nonlinearities can arise irrespective of whether a crystal lattice is centrosymmetric. Here, we report third harmonic generation (THG) in two-dimensional (2D) transition metal oxide iodides, namely NbOI2and TaOI2. We observe a comparable THG intensity from both materials. By benchmarking against THG from monolayer WS2, we deduce that the third-order susceptibility is approximately on the same order. THG resonances are revealed at different excitation wavelengths, likely due to enhancement by excitonic states and band edge resonances. The THG intensity increases for material thicknesses up to 30 nm, owing to weak interlayer coupling. After this threshold, it shows saturation or a decrease, due to optical interference effects. Our results establish niobium and tantalum oxide iodides as promising 2D materials for third-order nonlinear optics, with intrinsic in-plane ferroelectricity and thickness-tunable nonlinear efficiency.
研究领域:
材料科学
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光学
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凝聚态物理
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 22
·13177-13183
·
IF 3.108
Yunyun Huang,Bo Yu,Tuan Guo,Bai-Ou Guan
Ultrasensitive and in situ DNA detection at different pH values, ranging from 4.3 to 8.5, based on a microfiber with a graphene oxide linking layer was proposed and experimentally demonstrated. The graphene oxide coating over the silica microfiber provides a strong π–π interaction with the detected single-stranded DNA molecules, and induces an amplified surface refractive index modulation over the fiber, and finally leads to a wavelength shift of the optical interference fringe for interrogation. Using this strategy, in situ DNA measurement with a detection limit of up to 10−12 M and a linear response in the pH range from 4.3–8.5 has been achieved. Benefiting from its compact size, high sensitivity, and ease of use, together with remote operational ability, the proposed sensor opens up a multitude of opportunities for quantifying DNA in various hard-to-reach environments. It may supplement the existing DNA detection tools.
研究领域:
光学
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生物传感
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材料科学
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分析化学
✓ 已验证
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2024
·
IF 6.7
Liming Liu,Ning Ma,Lu Wang,Yu Zhang,Yi-Zhen Wan,Tianze Wang,Weiping Qian
Fibrinolytic activity assay is particularly important for the detection, diagnosis, and treatment of cardiovascular disease and the development of fibrinolytic drugs. A novel efficacious strategy for real-time and label-free dynamic detection of fibrinolytic activity based on ordered porous layer interferometry (OPLI) was developed. Fibrin or a mixture of fibrin and plasminogen (Plg) was loaded into the highly ordered silica colloidal crystal (SCC) film scaffold to construct a fibrinolytic response interference layer to measure fibrinolytic activity with different mechanisms of action. Fibrinolytic enzyme-triggered fibrinolysis led to the migration of interference fringes in the interferogram, which could be represented by optical thickness changes (ΔOT) tracked in real time by the OPLI system. The morphology and optical property of the fibrinolytic response interference layer were characterized, and the Plg content in the fibrinolytic response interference layer and experimental parameters of the system were optimized. The method showed adequate sensitivity for the fibrinolytic activity of lumbrokinase and streptokinase, with wide linear ranges of 12–6000 and 10–2000 U/mL, respectively. Compared with the traditional fibrin plate method, it has a lower detection limit and higher linearity. The whole kinetic process of fibrinolysis by these two fibrinolytic drug models was recorded in real time, and the Michaelis constant and apparent kinetic parameters were calculated. Importantly, some other blood proteins were less interfering with this system, and it showed reliability in fibrin activity detection in real whole blood samples. This study established a better and more targeted research method of in vitro fibrinolysis and provided dynamic monitoring data for the analysis of fibrinolytic activity of whole blood.
研究领域:
生物医学工程
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心血管疾病
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药物开发
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干涉测量
·
纤溶
✓ 已验证
DOI
PubMed
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Tianze Wang,Lu Wang,Ning Ma,Yu Zhang,Liming Liu,Yizhen Wan,Lele Zhou,Weiping Qian
Colloidal crystal nanomaterials have been proven to be valuable substrates for optical-based biosensing due to their ordered macroporous nanostructure and brilliant optical properties. In this work, silica colloidal crystal (SCC) thin films, as well as polystyrene–SCC composite films and inverse opal (IO) polystyrene films fabricated using SCC as templates, are investigated for their application as substrate materials in optical interferometric biosensors. The SCC films formed by the self-assembly of silica colloidal crystals have the most densely packed nano-3D structure, also known as the opal structure. IO films are fabricated by filling the opal pores of SCC with polystyrene and then removing the template, resulting in an interconnected nano-3D ordered macroporous structure, as indicated by the name inverse opal. The performance of the three materials was compared and discussed based on an ordered porous layer interferometry optical platform, focusing on refractive index response, protein adsorption response, and biomolecular interaction response. These results could potentially offer innovative material support for the advancement of label-free optical biosensors, which can be used for more biological/biochemical/biomolecular reaction monitoring studies.
研究领域:
材料科学
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纳米技术
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光学
·
生物传感
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2023
·Vol. 56
·期 43
·435401
·
IF 3.4
Xinyu Zhang,Xiangyu Hou,Wenlin Feng
A surface-functionalized cascaded optic-fiber Mach–Zehnder interferometer (MZI) is proposed and fabricated for trace detection of canine distemper virus (CDV). The Vernier effect is formed based on single-mode fiber (SMF)-dislocation single-mode fiber-SMF. The two MZIs serve as the sensing arm and reference arm, respectively. The CDV antibody is modified on the sensing arm to detect CDV antigen, and the surface structure and morphology are analyzed by the atomic force microscope. The sensitivity of the cascaded MZI sensor is about 12 times than that of a single MZI. In the range of 0.1–104 pg ml−1 CDV, the detection limit of the cascaded MZI sensor is 0.1687 pg ml−1, and the response time is 25 min. The sensor also has good temperature, time stability and excellent selectivity. The biosensor has the advantages of low cost, easy preparation, high sensitivity and good selectivity, and has potential application for trace CDV detection.
研究领域:
光学传感
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生物传感
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病毒学
·
光学干涉
✓ 已验证
DOI
高影响因子
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