NPG Asia Materials
·
2022
·Vol. 14
·期 1
·1-12
·
IF 10.761
Shen Peiyan,Li Mengru,Li Ran,Han Bo,Ma Haojie,Hou Xueyan,Zhang Yuqi,Wang Ji-Jiang
Smart photonic hydrogels based on two-dimensional photonic crystals (2DPC) provide a promising sensing platform for constructing novel chemical and biological sensors due to their facile optical signal readout and highly sensitive responsivity toward target analytes. Aptamers, as recognition elements with high selectivity and affinity, are extensively used to construct a variety of sensors. Herein, we developed two partially base complementary aptamer-functionalized 2DPC hydrogels as aptasensors for the detection of thrombin (TB) in human serum. The photonic hydrogel aptasensors swelled upon exposure to TB solution, leading to an increase in the particle spacing of the 2DPCs. The particle spacing changes were acquired by simply measuring the diameters of the Debye ring diffracted by the 2DPCs without the requirement of sophisticated instruments. The aptasensor swelling resulted from the decrease in the hydrogel cross-linking density induced by the specific binding between one of the aptamers and TB and the increase in hydrogel mixing free energy induced by the introduction of TB. The particle spacing increase of the optimized aptasensor was linear over the TB concentration range of 1–500 nM, and the limit of detection was 0.64 nM. The constructed 2DPC hydrogel aptasensor was used to detect TB in human serum and achieved recoveries of 95.74–104.21% and a relative standard deviation of 2.52–6.58%, showing the practicability and accuracy of the sensor. The aptamer-actuated 2DPC hydrogel biosensor provides a new strategy for designing other target molecule-sensitive aptasensors, showing great potential for development into home kits.
研究领域:
生物传感
·
材料科学
·
医学检测
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2014
·Vol. 38
·期 7
·3071-3077
·
IF 3.159
Yi Zheng,Gang Chen,Yaoguang Yu,Yu Wang,Jingxue Sun,Haiming Xu,Yansong Zhou
Pyrochlore-type cubic phase tungsten trioxide hemihydrate (c-WO3·0.5H2O) has been synthesized for the first time via a simple solvothermal process. The photocatalytic properties have been investigated firstly by the photodegradation of RhB, where the c-WO3·0.5H2O sample demonstrated high photocatalytic activity, indicating that c-WO3·0.5H2O is a promising candidate for tungsten oxide-based photocatalytic materials. The investigation result of the crystal water effects on the photocatalytic activity showed that crystal water of c-WO3·0.5H2O played a key role in the photocatalytic activity. The novel method reported in this study has great potential for the development of tungsten trioxide-based functional materials preparation, to improve their photocatalytic efficiency in the elimination of hazardous substance applications as well as for energy materials.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 8
·5638-5648
·
IF 9.5
Geng Gao,Jian Tang,Shaoze Zhang,Bo Jin,Yajie Yuan,Yixing Zeng,Yanqiu Xu,Qing Zhao,Keyu Zhang,Junxian Hu,Yin Li,Yaochun Yao
Iron oxalate, a coordination polymer known for its sustainability, is a potential candidate for high-capacity and high-rate anode materials for lithium-ion batteries. However, the inherent crystal water in iron oxalate significantly hampers its electrochemical activity, leading to a reduced lithium storage capability. Therefore, the removal of crystal water is essential for electrochemical performance enhancement. Here, we harnessed the differing binding strengths of water molecules between chains on various crystal planes of iron oxalate dihydrate, using dihydrate crystal plane regulation strategies to enhance the removal of water molecules. Specifically, by introducing ethanol molecules, which have hydroxyl oxygen characteristics similar to those of water molecules, we modified the surface energy of the original crystal planes resulting in the exposure of (202) crystal planes in iron oxalate dihydrate materials. This crystal plane regulation effectively enhances the release kinetics of crystal water. Furthermore, due to the optimal dehydration capability of the (202) facets and the enhanced capacity of lithium-ion diffusion, the dehydrated FeC2O4-12 h nanorods with exposed (202) facets exhibited an impressive discharge capacity of 850 mA h g−1 at a high rate of 5 A g−1. This work not only proposes a strategy for removing crystal water from electrode materials but also introduces a crystal facet regulation method, offering new avenues for enhancing the electrochemical performance of transition metal oxalate materials in areas such as proton batteries, electrocatalysis, and solid electrolytes for proton conductors.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2019
·
IF 5.256
Yifei Wang,Tengsheng Xie,Ji Yang,Meng Lei,Jing Fan,Zihui Meng,Min Xue,Lili Qiu,Fenglian Qi,Zhe Wang
As a typical antibiotic that is harmful to the health of human beings and widely used in animal husbandry, oxytetracycline (OTC) has a potential threat to the food safety. Therefore, the design of portable sensors for efficiently monitoring trace amounts of OTC in foods is vital to maintain safe food supply in our daily life. Herein, a two-dimensional (2D) molecularly imprinted photonic crystal hydrogel (MIPCH) sensor for the detection of OTC was fabricated by combining the photonic crystal (PC) method and molecular imprinting technique. In this regard, OTC was used as imprinted template to form the MIPCH sensor with specific binding sites during polymerization. After the removal of template, the obtained MIPCH possessed the specific nanocavities that were complementary to target compound, OTC. In addition, the response of the MIPCH to tetracyclines (TCs) in aqueous solution was monitored through a readable change of Debye diffraction ring, which is related to the particle spacing variation of MIPCH in response to the target molecules. As the concentration of OTC increased from 0 to 60 μM, the particle spacing of MIPCH sensor increased to about 94 nm and the structural color redshifted from blue to red. More importantly, the detection of OTC in milk sample by this portable, cost-effective MIPCH sensor has also been achieved at the same range of OTC. With the increasing concentration of OTC in milk sample, the particle spacing of MIPCH sensor increased about 92 nm and the structural color of MIPCH changed from blue through green to orange.
研究领域:
食品安全
·
传感器技术
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FUEL
·
2019
·
IF 5.128
Shu Yang,Kang Liu,Min Liu,Xu Yan,Cao Liu,Minneng Wen,Hui Liu,Liyuan Chai
Copper sulfate (CuSO 4 ) is a ubiquitous component in natural minerals and industrial dusts. However, CuSO 4 has been believed usually that it has adverse effect on elemental mercury (Hg 0 ) removal from flue gas. Here, we offered a new insight into the effect of crystal water in copper sulfate on Hg 0 catalytic oxidation. The structure evolution of copper sulfate by density functional theory (DFT) calculation revealed anhydrous CuSO 4 crystal contributing to a better HCl adsorption which provided a precondition for Hg 0 oxidation. Experimental results about the catalytic activity sequence of CuSO 4 > CuSO 4 ·H 2 O > CuSO 4 ·5H 2 O with HCl confirmed the negative effect of crystal water on Hg 0 catalytic oxidation. To realize industrial application, supported catalysts CuSO 4 /α-Al 2 O 3 synthesized by wet impregnation method was employed for elemental mercury (Hg 0 ) oxidation and the results exhibited excellent performance in Hg 0 oxidation under 250 °C–400 °C. The Hg 0 conversion efficiency was above 97% in the presence of 2 ppm HCl + 6% O 2 at 300 °C. Combining computational and X-ray photoelectron spectroscopy (XPS) analyses together, Cu atoms exposure on the surface of anhydrous CuSO 4 were the critical active sites for Hg 0 oxidation and the reaction obeyed the Eley–Rideal mechanism.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Lina Ge,Yijun Song,Pengchao Niu,Bingyu Li,Li Zhou,Wenting Feng,Chunxiang Ma,Xuejin Li,Debin Kong,Zifeng Yan,Qingzhong Xue,Yongpeng Cui,Wei Xing
Prussian blue (PB) is one of the main cathode materials with industrial prospects for the sodium ion battery. The structural stability of PB materials is directly associated with the presence of crystal water within the open 3D framework. However, there remains a lack of consensus regarding whether all forms of crystal water have detrimental effects on the structural stability of the PB materials. Currently, it is widely accepted that interstitial water is the stability troublemaker, whereas the role of coordination water remains elusive. In this work, the dynamic evolution of PB structures is investigated during the crystal water (in all forms) removal process through a variety of online monitoring techniques. It can be inferred that the PB-130 °C retains trace coordination water (1.3%) and original structural integrity, whereas PB-180 °C eliminates almost all of crystal water (∼12.1%, including both interstitial and coordinated water), but inevitably suffers from structural collapse. This is mainly because the coordinated water within the PB material plays a crucial role in maintaining structural stability via forming the −N≡C–FeLS–C≡N– conjugate bridge. Consequently, PB-130 °C with trace coordination water delivers superior reversible capacity (113.6 mAh g–1), high rate capability (charge to >80% capacity in 3 min), and long cycling stability (only 0.012% fading per cycle), demonstrating its promising prospect in practical applications.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yang Liu,Xiaoming Zhou,Xue Wang,Gairong Chen,Rong Liu,Yu Ma,Yang Bai,Guohui Yuan
Developing the alternative anode materials that can completely resolve the dendrite concern of Zn metal anodes are desirable for reliable aqueous zinc-ion batteries. However, the sub-optimal charging potentials of reported anodes inevitably cause the discounted output voltage and energy density on a zinc-ion full battery. Herein, it is firstly demonstrated that the hydrated titanic acid (H 2 Ti 3 O 7 ·xH 2 O) can be applied as an ultralow-potential anode for the aqueous zinc-ion full battery. The depressed potential (0.2 V vs. Zn 2+ /Zn) of the H 2 Ti 3 O 7 ·xH 2 O compared to that of reported candidates could significantly enhance the operating voltage level of the zinc-ion full battery. Furthermore, the comprehensive analyses demonstrate that the expanded lattice spacings and interlayer crystal water stimulate Zn 2+ along with H + to jointly insert and extract on the H 2 Ti 3 O 7 ·xH 2 O anode. The low-potential H 2 Ti 3 O 7 ·xH 2 O anode exhibits an impressive cycling performance and coulombic efficiency by virtue of the assistance from interlayer crystal water. The assembled Zn x MnO 2 //H 2 Ti 3 O 7 ·xH 2 O zinc-ion full battery delivers the decent electrochemical performance, especially a high output voltage of over 1 V. This low-potential, high-stable H 2 Ti 3 O 7 ·xH 2 O anode reveals the exceptional potential for aqueous zinc-ion full batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
·
2020
·
IF 0
Xiaohui Wang,Yanfei Qiu,Gong Chen,Zhaoran Chu,Akelima Shadike,Changsong Chen,Cheng Chen,Zhigang Zhu
A self-healable poly(vinyl alcohol) (PVA) gelated crystalline colloidal array (GCCA) photonic crystal hydrogel was presented. The GCCA material efficiently diffracted visible light, and the structural color change induced by tensile stress could be easily distinguished by the naked eye. We proved that the multicolored GCCA with three-dimensional (3D) complex shapes could be prepared on a large scale through self-healing, and invisible quantum dots could be printed within the interfaces of the healed photonic crystal (PC) hydrogels, thus providing a method for the construction of multilevel PC structures with complex optical properties, such as heterostructures, secondary colors, and photonic printings.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
产品关联
DOI
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Hanlin Lv,Wan Zheng,Yuhang Wang,Zhengsheng Hu,Yanjun Chen,Yifeng Wang
Photonic crystal hydrogels are widely used in the field of visual detection, based on the response of the structural color to external stimulus, such as pH, temperature, near-infrared light, and so on. Here, we develop an opal photonic crystal hydrogel by combining polystyrene (PS) photonic crystals with a fluorescent double-network hydrogel and focus on both its visual detection function and mechanical property. The opal hydrogel is composed of nanocomposite hydrogel as the first network and ionic crosslinked hydrogel as the second network. The introduction of PS photonic crystals and terbium ions endows the opal hydrogel distinctive structural colors and fluorescence, respectively. Because of volume changes, the structural color of the opal hydrogel selectively responses to metal ions and organic solvents. Attributing to the ion exchange interaction, the opal hydrogel exhibits fluorescent responses to various metal ions. Combining the responsiveness of structural color and fluorescence, a visual dual-detection mode is set up, with better detection sensitivity and selectivity. Moreover, the characteristics of nanocomposite and double-network crosslinking ensure the opal hydrogel enough mechanical properties to undergo cycle visual detection. Consequently, the fabricated opal hydrogel is promising for use in visual detection to multiple substances in single- or dual-detection mode.
研究领域:
材料科学
·
化学
·
生物传感
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Huifang Shen,Qian Lin,Huachun Tang,Yuqin Tian,Xinya Zhang
Herein, crack-free photonic crystal templates with enhanced color contrast were first demonstrated by the coassembly of polystyrene (PS) microspheres and graphene oxide (GO). Then, photonic crystal hydrogels (PCHs) with quick responses to temperature and alcohol solution concentration changes were fabricated by photopolymerization of monomers in the gaps of the self-assembled colloidal crystal templates. The structural color of the PCHs changed from yellow to blue within 120 s as the temperature rose from 25 to 40 °C, whereas upon a decrease in temperature from 40 to 25 °C, the structural color changed from blue to yellow. The structural color of the PCHs also shows an obvious response with the concentration of alcohol solution ranging from 40 to 100 wt %. The quick responses of the PCHs’ structural color to changes in temperature and alcohol solution concentration are attributed to the temperature sensitivity of poly(N-isopropylacrylamide) and preferential adsorption and swelling of the alcohol solution for the polymer chains. Furthermore, moxifloxacin (Mox) was loaded into PCHs by hydrogel swelling and exhibited sustained released by increasing the temperature. The sustained release process was facilely monitored by observing the corresponding color changes in real time. The rapid and visible response offers the fabricated PCHs great potential application prospects in the semiquantitative analysis of alcohol concentration and intelligent drug delivery.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 11
·1-10
·
IF 6.408
Shen Peiyan,Jang Kyeongwoo,Cai Zhongyu,Zhang Yuqi,Asher Sanford A.
Aptamer-functionalized two-dimensional photonic crystal (2DPC) hydrogels are reported for the detection of adenosine (AD). As a molecular recognition group, an AD-binding aptamer was covalently attached to 2DPC hydrogels. This aptamer selectively and sensitively binds AD, changing the conformation of the aptamer from a long single-stranded structure (AD-free conformation) to a short hairpin loop structure (AD-bound conformation). The AD-binding-induced changes of aptamer conformation reduced the volume of the 2DPC hydrogels and decreased the interparticle spacing of the 2DPC embedded in the hydrogel network. The particle spacing changes being dependent on AD concentration were determined by measuring 2DPC light diffraction using a simple laser pointer. The 2DPC hydrogel sensor showed a large particle spacing decrease of ~ 110 nm in response to 1 mM AD in phosphate-buffered saline (PBS). The linear range of determination of AD was 0.1 nM to 1 mM and the limit of detection was 0.09 nM. The hydrogel sensor response for real samples was then validated in diluted fetal bovine serum (FBS) and human urine. The average % difference in particle spacing changes measured between diluted FBS and pure PBS was only 3.99%. In diluted human urine, the recoveries for the detection of AD were 95–101% and the relative standard deviations were 4.9–7.8%. The results demonstrate the potential applicability of the hydrogel sensor for real samples. This sensing concept, using the aptamer-functionalized 2DPC hydrogels, allows for a simple, sensitive, selective, and reversible detection of AD. It may enable sensor development for a wide variety of analytes by simply changing the aptamer recognition group. Graphical abstract
研究领域:
生物传感器
·
材料科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Mingfei Pan,Yueyao Wang,Jingying Yang,Huilin Li,Xintong Han,Shuo Wang
Rapid, portable, and sensitive detection of tetracycline (TC) is crucial for the environment and human health. In this study, we developed carbon dots (CDs)-based fluorescent molecularly imprinted photonic crystal hydrogel (FMIPH) strips for TC detection in animal-derived foods. CDs emit fluorescent signals, and molecularly imprinted polymers provide specific recognition sites for TC. Inverse opal photonic crystals afford stable 3D macroporous mass transfer channels that considerably reduce binding time between TC and the strips. The portable FMIPH strip exhibited a linear fluorescence response to TC in the concentration range of 0.1–50 μg mL −1 , with a detection limit of 0.067 μg mL −1 . Good recoveries of TC (93.86–112.59%) were observed in TC-spiked commercially available pork, eggs, and milk. A combination of FMIPH strips with a portable fluorescent reading device could achieve sensitive, on-site, and real-time detection of TC in animal-derived foods.
研究领域:
分析化学
·
食品科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）