Article
Chemistry, Physical
A. K. Verma, R. K. Soni
Summary: This study presents the identification of ultra-trace analyte concentrations using laser-textured palladium-gold hierarchical superhydrophobic micro-arrays as surface-enhanced Raman sensors. The optimized fabrication parameters result in hybrid SMA-SERS sensors with excellent superhydrophobicity and uniform signal detectability down to -34.2 fM MB molecules. These sensors enable the detection and identification of multiple analytes.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Xiangyun Guan, Guang Feng
Summary: In this paper, a patterned superhydrophobic/superhydrophilic SERS sensor was fabricated using femtosecond laser, achieving a detection sensitivity of R6G molecules as low as 10-13 M. This provides an efficient way for ultratrace molecular detection.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Chen Li, Lan Jiang, Jie Hu, Chenyang Xu, Zihao Li, Wei Liu, Xiaoming Zhao, Bingquan Zhao
Summary: A novel method for producing a superhydrophilic-superhydrophobic Janus fog collector is proposed in this study, which enables flexible and efficient fog capture. The experimental results show that the Janus foam exhibits excellent sensitivity and stability, making it suitable for the simultaneous collection and detection of fog.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
C. N. Niu, J. Y. Han, S. P. Hu, D. Y. Chao, X. G. Song, M. M. R. Howlader, J. Cao
Summary: The superhydrophilic-superhydrophobic patterned surface of aluminum was successfully fabricated by using nanosecond laser and fluorine-free N-Octyltriethoxysilane, which not only shortens the fabrication time and eliminates the use of hazardous chemicals, but also achieves droplet arrays and fluid channels with special patterns.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Environmental
Furkan Sahin, Nusret Celik, Ahmet Ceylan, Sami Pekdemir, Mahmut Ruzi, M. Serdar Onses
Summary: The multifunctional superhydrophobic surface exhibits unique SERS activity and antimicrobial properties, allowing for liquid repellency, adulterant detection, and reduced bacterial adhesion. Additionally, the surface shows anti-fouling behavior against liquid food and excellent resistance to sticky foods.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Ping Wen, Feng Yang, Chuang Ge, Shunbo Li, Yi Xu, Li Chen
Summary: An efficient nano-Ag/Au@Au film composite SERS substrate was proposed for the rapid detection of creatinine in human serum. Finite element simulation analysis and experimental results showed that the substrate had high enhancement factor and low limit of detection for R6G molecules. The label-free detection of human serum creatinine using the SERS substrate demonstrated a low LOD and high linear correlation coefficient, indicating its potential for disease biomarker detection.
Article
Materials Science, Characterization & Testing
Yulei Li, Baoying Shi, Xiayu Luan, Zhanhua Hao, Yufeng Wang
Summary: A flexible superhydrophobic material with reversibly switchable wettability was developed by coating hydrophobic nano-TiO2 particles on ligno-cellulosic paper. The coated paper surface showed a reversible switching between superhydrophobicity and superhydrophilicity through UV irradiation and heating. This smart material has significant potential applications in various fields that require tunable wettability.
Article
Chemistry, Physical
Jinming Liu, Defeng Yan, Yuyang Zhou, Yang Chen, Xin Liu, Danyang Zhao, Jiyu Liu, Jing Sun
Summary: This study investigates the influence of micro-morphologies on water transportation and fog harvesting processes for superhydrophobic/superhydrophilic wedge-shaped patterned surface (SSWPS). SSWPSs with different microgrooves were prepared by laser processing, and the influence mechanisms of the micro-morphologies on droplet motion behaviors were studied. The results indicate that different micro-morphologies result in different transport speeds and fog harvesting efficiencies.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Thermodynamics
Chanwoo Park, Byeong Yeop Kim, Yong-Il Kim, Yong Tae Kang, Sam S. Yoon
Summary: The miniaturization of electronic devices increases the thermal load, and pool boiling is introduced as an effective method to manage severe thermal loads. Hydrophobic surfaces enhance nucleation sites, while hydrophilic surfaces facilitate rapid bubble release and prevent surface dry-out.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Qiaoqiao Huang, Kai Yin, Lingxiao Wang, Qinwen Deng, Christopher J. Arnusch
Summary: In this study, a femtosecond laser-based method was used to create a superhydrophobic/superhydrophilic self-splitting pattern on a polyimide film for droplet multi-detection. The behavior of droplet self-splitting on the pattern surface was influenced by the dynamic behaviors of liquid recoiling and spreading, and the conditions for complete self-splitting were determined. The results showed that the pattern could be used for alcohol detection and multiple biological tests using a single drop of biological fluid.
Article
Biophysics
Isabela A. Mattioli, Ayaz Hassan, Natalia M. Sanches, Nirton C. S. Vieira, Frank N. Crespilho
Summary: The development of novel high-sensitivity DNA-based biosensors is crucial for genetic risk factor identification, medical diagnostics, and environmental monitoring. Researchers have designed a vertical electrochemical device capable of detecting zepto-molar concentrations of DNA, achieving unprecedented results in single-stranded DNA detection.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Xikang Zhou, Jiajie Wang, Hanghang Zhang, Xiaopeng Zhou, Yiping Han
Summary: We propose a method to improve the THz spectral information of target substances dissolved in water by tuning the thickness of an aqueous solution film using a superhydrophobic/superhydrophilic surface. This method focuses on the coordination between the thickness of the solution and the THz intensity, and is effective for dilute solutions.
Article
Thermodynamics
Aysenur Ates, Behnam Parizad Benam, Mandana Mohammadilooey, Sueleyman Celik, Vladimir Serdyukov, Anton Surtaev, Abdolali Khalili Sadaghiani, Ali Kosar
Summary: This study investigates the boiling heat transfer performance of surfaces with uniform (superhydrophobic and superhydrophilic) and mixed (superbiphilic) wettability through pool boiling experiments. The experimental results show that the superbiphilic surface can improve boiling heat transfer by 98% and 54% at atmospheric and sub-atmospheric pressures, respectively.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Industrial
Ngoc Giang Tran, Doo-Man Chun
Summary: In this study, extreme wettability contrast aluminum surfaces were fabricated using a green manufacturing process, without the use of toxic chemicals. The nano-microscale hierarchical structures on the aluminum surfaces allowed for stable superhydrophilic/superhydrophobic properties, with additional formation of hydrophilic pseudo-boehmite structure after boiling water treatment. The mechanism of wettability transition was analyzed by surface morphology and chemistry, demonstrating precision water droplet arrays and aqueous liquid control on the superhydrophobic surfaces.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Je-Un Jeong, Yoon-Gi Heo, Jung-Ah Cho, Yoojin Roh, Sung Jae Kim, Chang-Hun Lee, Jeong-Won Lee
Summary: In recent decades, superhydrophobic surfaces and slippery liquid-infused porous surfaces (SLIPS) have been researched for industrialization due to their superior antibiofilm performance. This study focuses on surface modification methods for TiAl6V4, a representative metal used in the human body, and evaluates the antibiofilm performance of each fabricated surface. The results show that TiAl6V4 with micro-nanostructured or nanostructured superhydrophobic surface effectively suppresses biofilm generation when exposed to bacteria.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)