Article
Biochemical Research Methods
Wenxiang Xiao, Jing Liu, Yinan Xiong, Yaoxin Li, Hua Li
Summary: The fluorescent film sensor was developed for detecting free bilirubin at nanomolar levels, showing good linearity and detection limit. The sensor exhibited satisfactory anti-interference capability towards common substances coexisting with bilirubin in serum, as demonstrated in tests with real serum samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Marystela Ferreira, Shiv K. Sharma, Suraj Paudyal, Roger M. Leblanc
Summary: This article explores the surface chemistry properties of the lactate oxidase (LacOx) enzyme monolayer at the air-subphase interface, finding that it remains active and stable without aggregation or irreversible domains. Spectroscopic experiments provided information on the enzyme's secondary structure conformation and showed that the LB film retains an alpha-helix conformation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Ilya Gorbachev, Andrey Smirnov, George R. R. Ivanov, Tony Venelinov, Anna Amova, Elizaveta Datsuk, Vladimir Anisimkin, Iren Kuznetsova, Vladimir Kolesov
Summary: A sensitive coating based on Langmuir-Blodgett (LB) films containing monolayers of DPPE with immobilized GOx enzyme was created. The effect of immobilization of GOx enzyme molecules on the surface properties of a Langmuir DPPE monolayer was investigated. The sensory properties of the resulting LB DPPE film with immobilized GOx enzyme in glucose solutions of various concentrations were studied. The findings suggest that acoustic methods can be used to determine the concentration of glucose molecules in an aqueous solution, and the developed technology has potential applications in the food and pharmaceutical industries.
Article
Chemistry, Analytical
Chandra Mouli Pandey, Manoj Kumar Pandey, Gajjala Sumana
Summary: In this study, highly ordered poly(lactic-co-glycolic acid) coated iron oxide nano particles (Plg-IONPs) were synthesized and deposited using the surface pressure-controlled Langmuir-Blodgett (LB) method. The uniform deposition of Plg-IONPs@LB thin film on indium tin oxide (ITO) coated glass substrate was confirmed by scanning electron microscopy. The fabricated biosensor utilizing Plg-IONPs@LB/ITO electrodes showed high sensitivity and specificity for detecting Escherichia coli O157: H7 (E. coli) with a limit of detection of 3.0 CFU mL(-1).
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Cheng Qian, Ran Wang, Min Li, Xuetong Li, Bingcheng Ge, Zhenhua Bai, Tifeng Jiao
Summary: Research on modifying and functionalizing black phosphorus materials has become increasingly popular in recent years. By using 4-azidobenzoic acid to modify few-layers BP nanosheets, the stability of BP was significantly improved. The composite Langmuir-Blodgett film of f-BPNS and dye molecules showed good sensitivity and high stability to acid and alkali gases.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Michal Swierczewski, Plinio Maroni, Alexis Chenneviere, Mohammad M. Dadras, Lay-Theng Lee, Thomas Burgi
Summary: The Langmuir-Blodgett technique is used to deposit ultrathin films of Au-38(SC2H4Ph)(24) nanoclusters onto solid surfaces, such as mica and silicon. The morphology of the films transferred at different surface pressures in the mono/bi/trilayer regime is studied using atomic force microscopy. The effect of the time spent on the water surface before deposition on the final ordering of nanoclusters within the network is investigated using fast AFM, X-ray reflectivity, and grazing-incidence wide-angle X-ray scattering.
Article
Chemistry, Multidisciplinary
Rajdeep Sinha, Sumit Kumar Das, Manash Ghosh, Joydeep Chowdhury
Summary: A SERS active substrate fabricated through self-assembly of gold nanoparticles on the disjointed networks of HC-Ct DNA Langmuir-Blodgett film is reported. The adsorption kinetics of HC-Ct DNA molecules at the air-water interface are studied, indicating the presence of H-type aggregated domains. The APS exhibits high SERS efficacy and can detect ultra-sensitive concentrations of malathion.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Applied
Jia-Xin Li, Ji-Jun Xu, Wen-Qi Luo, Chuan-Ming Jin
Summary: Three non-classical amphiphilic phenylazoimidazole derivatives were synthesized and their in-situ molecular assemblies upon coordination with AgNO3 at the air/water interface were investigated. These compounds showed good photochromic properties and formed H-aggregates on the surface despite lacking alkyl chains. The Ag(I)-coordinated 4-PRIM films exhibited supramolecular chirality due to pi-pi stacking between neighboring azophenyl imidazolium units and symmetry breaking in some systems.
Article
Biochemistry & Molecular Biology
Marek Szablewski, Richard L. Thompson, Lars-Olof Palsson
Summary: Novel fluorescent Langmuir-Blodgett (LB) films have been constructed from different amphiphilic dicynaoquinodimethanes (DADQs), and the relationship between film structure and fluorescence properties, as well as the response of the films to non-fluorescent target analytes, has been studied. The results show that the modulation of fluorescence varies for different films, which can be attributed to restricted non-radiative decays or charge transfer reactions between target analyte and film.
Article
Chemistry, Physical
Yue-Yang Ma, Ya Li, Hong-Xiang Huang, Dong-Jin Qian
Summary: In this work, luminescent lanthanide complexes were used as visual probes for the detection of toxic and dangerous materials. The Eu3+-dipicolinic acid complex functionalized nanoSiO2 composites and their LB films showed strong and enhanced red fluorescence emissions of Eu3+ ions when immersed in the aqueous TC solution, with high sensitivity and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Na Li, Ran Wang, Chongling Wang, Jing Gao, Zhiwei Liu, Jianmin Gu, Tifeng Jiao
Summary: The reasonable design of various functionalized nanocomposites based on black phosphorus has attracted substantial attention, leading to the successful exfoliation of bulk BP into nanosheets. The synthesized Langmuir composite films show promising potential in terms of photoisomerization stability and gas responsiveness. Additionally, the self-assembled films based on BP demonstrate high photoelectric conversion efficiency, indicating their potential applications in a wide range of nano-optical devices and optoelectronic devices.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biochemistry & Molecular Biology
Ki-Wan Jeon
Summary: The study reports the synthesis and fabrication of highly thionated reduced graphene oxide and its LB film, revealing sensitive electronic transport properties and optical characteristics of the film to the thiol content.
Article
Biochemistry & Molecular Biology
Juan Wang
Summary: This study investigated the effects of potassium ions on the surface properties of Amphotericin B (AmB) using the Langmuir monolayer method. The results showed that potassium ions enhance the influence of AmB on membrane stability at low surface pressures but weaken it at high surface pressures. Potassium ions also significantly interfere with the interaction between AmB and the cholesterol-enriched region.
Article
Chemistry, Inorganic & Nuclear
Yasemin Baygu, Inci Capan, Rifat Capan, Matem Erdogan, Yaser Acikbas, Nilgun Kabay, Yasar Gok, Kemal Buyukkabasakal
Summary: A novel phthalonitrile with a 26-member tetraoxadithia macrocycle moiety was synthesized and cyclomerized to obtain a new zinc(II) phthalocyanine. Characterization of the novel phthalocyanine and precursor compounds was conducted using various techniques. Langmuir-Blodgett (LB) thin films were fabricated using the 26-membered phthalocyanine to investigate its gas sensing properties. The sensor parameters and the thickness effect on the gas sensing mechanism were examined using Quartz Crystal Microbalance (QCM) technique. Experimental measurements of QCM kinetic were validated using a nonlinear autoregressive with exogenous input neural network.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Polymer Science
Guoqiang Han, Simeng Liu, Qi Yang, Fanyi Zeng, Wang Li, Xi Mao, Jiangping Xu, Jintao Zhu
Summary: A modified Langmuir-Blodgett method is reported for preparing large-area superlattice monolayers of polystyrene-grafted gold nanoparticles. The method involves pre-assembling the nanoparticles on a liquid surface and compressing the pre-assembled film in low-boiling-point solvent vapor.
Article
Chemistry, Applied
Meenakshi Dutt, Ayushi Kaushik, Monika Tomar, Vinay Gupta, Vaishali Singh
JOURNAL OF POROUS MATERIALS
(2020)
Article
Engineering, Electrical & Electronic
Reema Gupta, Vinay Gupta, Monika Tomar
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2020)
Article
Materials Science, Composites
Nisha Gill, Vinay Gupta, Monika Tomar, Amit L. Sharma, O. P. Pandey, Dwijendra P. Singh
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Pragati Kumar, Nupur Saxena, Vinay Gupta
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Engineering, Electrical & Electronic
Isha Yadav, Surbhi Jain, S. S. Lamba, Monika Tomar, Sudha Gupta, Vinay Gupta, K. K. Jain, Shankar Dutta, Ratnamala Chatterjee
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Chemistry, Analytical
Surbhi Jain, Ayushi Paliwal, Vinay Gupta, Monika Tomar
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Nanoscience & Nanotechnology
Jagdees Prasad, Ashwani Kumar Singh, Amar Nath Yadav, Ajit Kumar, Monika Tomar, Amit Srivastava, Pramod Kumar, Vinay Gupta, Kedar Singh
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Biophysics
Surbhi Jain, Ayushi Paliwal, Vinay Gupta, Monika Tomar
BIOSENSORS & BIOELECTRONICS
(2020)
Article
Chemistry, Multidisciplinary
Shiva Lamichhane, Savita Sharma, Monika Tomar, Vinay Gupta
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2020)
Proceedings Paper
Physics, Applied
Shiva Lamichhane, Savita Sharma, Monika Tomar, Vinay Gupta
3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER & APPLIED PHYSICS (ICC-2019)
(2020)
Article
Chemistry, Physical
Shaan Ameer, Kajal Jindal, Monika Tomar, Pradip K. Jha, Vinay Gupta
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Engineering, Electrical & Electronic
Rakesh Saini, Anil Kumar, Geeta Bhatt, Avinashi Kapoor, Ayushi Paliwal, Monika Tomar, Vinay Gupta
IEEE SENSORS JOURNAL
(2020)
Article
Multidisciplinary Sciences
Krishna Kamal Halder, Monika Tomar, V. K. Sachdev, Vinay Gupta
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2020)
