Article
Chemistry, Physical
Yueying Li, Shiyu Liang, Huanhuan Sun, Wei Hua, Jian-Gan Wang
Summary: This study demonstrates a surface treatment strategy to enhance the performance of TiO2-x nanorod arrays for photoelectrochemical water splitting, achieving high photocurrent density and efficient charge separation.
Article
Chemistry, Analytical
Hongin Jeong, Jhongryul Yoo, Seokyung Park, Jiling Lu, Sungho Park, Jeseung Lee
Summary: A non-enzymatic glucose sensor using TiO2 nanoparticles and chitosan-polypyrrole conductive polymer films was successfully fabricated, showing high sensitivity and low detection limit, with excellent selectivity and reactivity.
Article
Engineering, Multidisciplinary
Khaled Aliqab, Arun Uniyal, Gaurav Srivastava, Arjuna Muduli, Meshari Alsharari, Ammar Armghan
Summary: A surface plasmon resonance (SPR) based biosensor has been proposed for detecting Pseudomonas bacteria. The sensor design includes two silvers (Ag), a Titanium dioxide (TiO2), graphene, and an affinity layer with antimonene grating placed over a BK7 coupling prism based on the Kretschmann configuration. The sensor's performance parameters have been evaluated numerically and analyzed, showing improved efficacy in detecting Pseudomonas bacteria with the inclusion of TiO2 and affinity layers. A comparative analysis between the proposed and existing structures has been made, achieving sensitivity, quality factor, and detection accuracy parameters of 370.8 degrees (RIU)-1, 137.843(1/RIU), and 0.371747 degree -1.
Article
Optics
Yina Hai, Yonggang Zou, Jie Fan, He Zhang, Haizhu Wang, Ling Zhu, Xiaohui Ma
Summary: This research introduces a novel method for obtaining narrow linewidth semiconductor lasers with low far-field divergence angle, which are simple to fabricate and easy to integrate.
OPTICS COMMUNICATIONS
(2021)
Article
Optics
Sicheng LI, Jiangming Xu, Junrui Liang, Jun Ye, Yang Zhang, Xiaoya Ma, Jinyong Leng, Pu Zhou
Summary: In this paper, a multi-wavelength random fiber laser with customizable spectra is demonstrated using an acousto-optic tunable filter. The operating wavelength range can be tuned from 1114.5 to 1132.5 nm, with a maximal output power of 5.55 W and up to five spectral channels. The paper also analyzes the effects of gain competition and the interaction between Raman gain and insertion loss. Additionally, the output spectra can be ordered by radiating appropriate radio frequency signals to the acousto-optic tunable filter. This work provides a reference for agile shape spectrum generation and promotes the practicality of multi-wavelength random fiber lasers in sensing, telecommunications, and precise spectroscopy.
PHOTONICS RESEARCH
(2023)
Article
Chemistry, Analytical
Jhongryul Yoo, Hongin Jeong, Seo Kyung Park, Sungho Park, Je Seung Lee
Summary: This study synthesized high-purity TiO2 nanoparticles and deposited them on an electrode to fabricate a DNA biosensor. The structural and chemical properties of the nanoparticles were analyzed, and the concentration of target DNA was quantitatively analyzed using a picoammeter. Specificity experiments confirmed the ability of the biosensor to discriminate between different nucleotide sequences.
Article
Chemistry, Physical
Ensiye Shabanlou, Babak Jaleh, Behnaz Feizi Mohazzab, Omidreza Kakuee, Reza Golbedaghi, Yasin Orooji
Summary: This study utilized laser ablation method in N-2 atmosphere to prepare TiN structure on Ti target, investigating the effects of different N-2 gas pressures and laser scanning cycles on TiN structure formation. It was concluded that increasing the laser scanning cycle had a greater impact on the quantity and quality of TiN structure compared to changing N-2 gas pressure.
SURFACES AND INTERFACES
(2021)
Article
Biophysics
Florian Vogelbacher, Tim Kothe, Paul Muellner, Eva Melnik, Martin Sagmeister, Jochen Kraft, Rainer Hainberger
Summary: This study combines a dye-doped organic solid-state distributed feedback laser with a highly sensitive optical waveguide Mach-Zehnder interferometer on a silicon nitride photonic platform for use in photonic lab-on-a-chip biosensors. The organic-hybrid laser allows for optical pumping with a laser diode in an alignment tolerant manner, facilitating applications in point-of-care diagnostics. The sensitivity to bulk refractive index changes and the concentration dependent binding of streptavidin on a polyethyleneimine-biotin functionalized surface demonstrate the practicality of this cost-efficient coherent light source for optical waveguide biosensors.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Physical
Yantao Yu, Chunqi Wang, Chao Jiang, Lanzhi Wang, Ze Wang, Zuojuan Du, Jia Sun, Isaac Abrahams, Xiaozhong Huang
Summary: Titanium dioxide memristors doped with nitrogen exhibit excellent performance in mimicking synaptic functions of the human brain, with bidirectional gradually changing conductance and high endurance over 8000 cycles. This promising approach for neuromorphic computing allows for synaptic features simulation and tunable memory lifetimes through manipulation of stimulation parameters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yazhou Hu, Xianrui Zou, Ning Liu, Tai Yang, Chaoqun Xia, Hongshui Wang, Chunyong Liang
Summary: This study presents a novel approach using femtosecond laser technology to fabricate nano cones-like structures of rutile titanium oxides (NCS-TiO2) on the surface of titanium. Molecular dynamic simulation reveals that the growth of rutile titanium oxides and the formation of nano cones-like structures are attributed to the interplay between femtosecond laser ablation and the accumulation of thermal energy. The proposed method offers a versatile and straightforward approach for creating functional surfaces on metal substrates, enabling broad applicability and ease of implementation, specifically in titanium and its alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Chengyu Yang, Yukun Zhu, Daohao Li, Yiming Liu, Chen Guan, Xiaofei Man, Shuchao Zhang, Lixue Zhang, Dongjiang Yang, Yan Xu
Summary: This study developed TiO2@RP NRs as a photosensitizer for the synchronous PDT and PTT treatments for ccRCC and demonstrated their feasibility and effectiveness through in vitro and in vivo experiments. TiO2@RP NRs were shown to efficiently kill ccRCC cells under NIR irradiation while causing minimal damage to normal kidney cells, highlighting a promising photo-driven therapy for kidney cancer.
Article
Optics
Chunkao Ruan, Yongyi Chen, Feng Gao, Li Qin, Dezheng Ma, Peng Jia, Chao Chen, Hao Wu, Xia Liu, Yugang Zeng, Xing Zhang, Yue Song, Yongqiang Ning, Lijun Wang
Summary: The single-longitudinal-mode gain-coupled DFB lasers based on high-order gain-coupled surface gratings emitting at 770 nm window provide stable performance with high output power and narrow linewidth, making them a practical manufacturing method for commercial applications in the 770 nm region.
OPTICS COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
G. Silva-Galindo, M. Zapata-Torres
Summary: This paper presents the results of a non-enzymatic electrochemical glucose biosensor based on TiO2. The TiO2 electrode exhibits adsorption behavior towards glucose molecules and demonstrates stable electrochemical performance. The electrode shows potential for detecting glucose concentration in sweat and saliva.
Article
Chemistry, Analytical
Shyang Pei Hong, Natasha Ann Keasberry, Minhaz Uddin Ahmed
Summary: In this study, a screen-printed gold electrode modified with a novel nanocomposite was used to detect Gliadin using electrochemiluminescence. The nanocomposite enhanced the intensity of electrochemiluminescence by 5.6 times compared to the bare gold electrode. The immunosensor showed a linear detection range of 0.005-500 pg/mL, with the lowest limit of detection among other Gliadin immunosensors. It exhibited high selectivity, reproducibility, stability, and excellent recoveries from real samples.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Katarzyna Siuzdak, Lukasz Harynski, Jakub Wawrzyniak, Katarzyna Grochowska
Summary: Titanium dioxide is a promising semiconductor material widely used in everyday products, devices, and processes, particularly in energy and environmental applications. Laser technology offers a unique way to manipulate the material without using any chemical products, providing a range of possible modifications to the structure.
PROGRESS IN SOLID STATE CHEMISTRY
(2021)