Article
Materials Science, Multidisciplinary
Ankur Srivastava, Gargi Mishra, Jay Singh, Mrituanjay D. Pandey
Summary: In this study, nanostructured La2O3 and Au doped La2O3 nanocomposites were prepared hydrothermally and electrophoretically deposited onto ITO glass for the immobilization of tymsinase enzyme. The fabricated Tyr/Au-La2O3/ITO electrode showed promising results for dopamine determination with good sensitivity and reproducibility. Overall, the fabricated electrode could provide an efficient biointerface for the application of rare earth metal oxide nanomaterials in biosensors and bioelectronics.
Article
Chemistry, Analytical
Maria Isabel Gaviria-Arroyave, Juan Pablo Arango, Kaory Barrientos Urdinola, Juan Bernardo Cano, Gustavo Antonio Penuela Mesa
Summary: This study developed a stable fluorescent aptasensor for the detection of pesticides, such as chlorpyrifos, in water using nucleic acid oligonucleotides as sensing elements. The interaction mechanism between the aptamer and the target molecule was investigated by molecular docking, and a potential improvement strategy for the aptamer was proposed. The aptasensor showed excellent sensitivity and specificity for chlorpyrifos detection in tap water, suggesting its potential application in environmental monitoring.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo Ken Kawassaki, Mariana Romano, Mayara Klimuk Uchiyama, Roberta Mansini Cardoso, Mauriicio S. Baptista, Sandra H. P. Farsky, Khallil Taverna Chaim, Robson Raphael Guimaraes, Koiti Araki
Summary: A novel ultrasmall paramagnetic nanoparticle (UPN), decorated with iron oxide on 3 nm titanium dioxide nanoparticles, has been developed as a potential alternative blood-pool contrast agent to gadoteric acid (GA) for MR angiography. It exhibits comparable relaxometric parameters to GA and has strong and prolonged contrast enhancement before renal excretion.
Article
Chemistry, Physical
Seul-Yi Lee, Roop L. Mahajan
Summary: In this study, a facile one-pot process using HNO3 to obtain graphene oxide from coal (Coal-GO) was successfully demonstrated. The synthesized Coal-GO was converted to reduced graphene oxide (Coalr-GO) and showed superior interaction with single stranded DNA aptamer compared to Graphite-GO. This could potentially lead to higher sensitivity chemiluminescence resonance energy transferbased biosensors.
Review
Chemistry, Analytical
Agnivo Gosai, Kamil Reza Khondakar, Xiao Ma, Md Azahar Ali
Summary: Biosensors have the potential to transform personalized medicine and environmental monitoring, with functional graphene being a popular choice for sensing material due to its ease of synthesis, high functionality, and large surface area for sensitive applications. The review highlights the current state-of-the-art biosensors based on graphene, emphasizing on the mechanism of sensing and future prospects in healthcare and environmental monitoring, particularly in additive manufacturing technologies like 3D printing.
Article
Electrochemistry
N. Manikandan, B. Lakshmi, S. Shivakumara
Summary: Porous flower-like magnetite nanostructures with high surface area and pore volume have been successfully synthesized. The nanostructures exhibit high discharge capacitance and cycle stability, making them promising for supercapacitor applications.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yo Han Kim, Hyeongwon Jeong, Bo-Ram Won, Jae-ha Myung
Summary: This study reveals that in the perovskite system, the nucleation and diffusion of nanoscale electrodes are determined by cation diffusion, with the initial cation concentration and reduction conditions playing critical roles. By employing a highly Ni-doped anode and an electrochemical switching technique, the performance limitations of electrode growth are overcome, resulting in outstanding performance. This research provides crucial insights into the development and tuning of heterogeneous catalysts for energy conversion applications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Carolina del Real Mata, Roozbeh Siavash Moakhar, Imman I. Hosseini, Mahsa Jalali, Sara Mahshid
Summary: A new nanostructured microfluidic device was proposed for ultrasensitive, quantitative detection of H2O2 released from cancer cells, featuring self-organized gold nanocavities enhanced with graphene nanosheets. The device successfully measured released H2O2 from breast cancer and prostate cancer cells in human plasma with a superb LOD. The proposed electrode combining gold plasmonic nanocavities and graphene sheets paves the way for non-invasive plasmon-assisted electrochemical sensors that can effectively detect low concentrations of H2O2 released from cancer cells.
Article
Chemistry, Multidisciplinary
Tianen Chen, Allen Yang, Wei Zhang, Jinhui Nie, Tingting Wang, Jianchao Gong, Yuanhao Wang, Yaxiong Ji
Summary: In this study, an innovative strategy using graphene oxide (GO) was presented for the synthesis of GO-based metal-organic-framework composites (Co-BTC@GO) for high-performance supercapacitors. The optimal GO dosage was determined by morphology characterization and electrochemical measurement, and the 3D Co-BTC@GO composites demonstrated a microsphere morphology similar to Co-BTC. The composites exhibited stable interface and better charge transfer path compared to pristine GO and Co-BTC, resulting in excellent energy storage performance and outstanding life stability.
Article
Chemistry, Medicinal
Marco A. Arriaga, Dean Michael Enriquez, Arely D. Salinas, Romeo Garcia, Carlos Trevino De Leo, Silverio A. Lopez, Karen S. Martirosyan, Sue Anne Chew
Summary: This study demonstrates the potential of iron oxide nanoparticles (Fe3O4 NPs) for controlling minocycline release from polymeric scaffolds via magnetic hyperthermia, with higher concentrations of nanoparticles leading to greater heat generation and drug release. Elevated temperature and minocycline release from the scaffold can work synergistically to enhance glioblastoma cell death.
FUTURE MEDICINAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Gabriel J. Mattos, Carlos A. R. Salamanca-Neto, Eduardo C. M. Barbosa, Pedro H. C. Camargo, Robert F. H. Dekker, Aneli M. Barbosa-Dekker, Elen R. Sartori
Summary: A photoelectrochemical biosensing strategy was developed for highly sensitive detection of the flavonoid rutin. By integrating hematite decorated with palladium nanoparticles and biocatalysis towards laccase-based reactions, a novel biosensing platform was created, showing good sensitivity, selectivity, repeatability, and storage stability.
Article
Materials Science, Multidisciplinary
Agung Nugroho, Eduardus Budi Nursanto, Sylvia Ayu Pradanawati, Haryo Satriya Oktaviano, Hanida Nilasary, Hartoto Nursukatmo
Summary: Graphitic carbon materials are synthesized by mixing petroleum coke with Fe-based catalysts and annealing at 1300 degrees C under N-2 atmosphere. Iron or iron oxide catalyst leads to similar graphitic structure formation during heat treatment, with iron oxide catalyst resulting in ordered graphitic structure. Iron-based catalyst decreases turbostratic peak and leads to higher ordered graphite peak. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) show similar morphology structure of graphite powder synthesized using iron or iron oxide. Full cell testing using NMC-622 cathode demonstrates good electrochemical properties of the synthesized sample, comparable to commercial graphite.
Article
Electrochemistry
Alberto Vega-Poot, Manuel Rodriguez-Perez, Juan Becerril-Gonzalez, Ingrid Rodriguez-Gutierrez, Jinzhan Su, Geonel Rodriguez-Gattorno, Wey Yang Teoh, Gerko Oskam
Summary: The study evaluates and compares several strategies to address the poor electrical properties of hematite photoanodes for solar water splitting. The use of nanorod array morphology and overlayers of TiO2 and MoO x successfully suppresses surface recombination but leads to a shift in hole transfer process to more positive potentials. The deposition of CoPi oxygen evolution reaction co-catalyst partially addresses this issue, resulting in the best efficiencies for CoPi-TiO2/alpha-Fe2O3 and CoPi-MoO x /TiO2/alpha-Fe2O3 photoelectrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Sergey O. Kazantsev, Aleksandr S. Lozhkomoev, Nikolay G. Rodkevich
Summary: In this study, an adsorbent composite with high adsorption activity was prepared by oxidizing bimetallic Al/Fe nanoparticles. The obtained nanostructures with different morphologies and compositions exhibited a positive zeta potential and high specific surface area, resulting in efficient adsorption of arsenic. The research findings are of great significance for water purification contaminated with arsenic.
Article
Electrochemistry
Yuhuan Zhang, Chun Xian Guo, Chao Wu, Hongfang Du, Qiubing Chen, Jie-Chang Gao, Zhuanzhuan Shi, Kang-lai Tang, Chang Ming Li
Summary: A facile electrochemical method was introduced to tune Li1 + xFePO4 for a highly sensitive nitric oxide (NO) sensor, achieving higher sensitivity and lower detection limit compared to pristine LiFePO4. The enhanced performance is attributed to the high Li+ insertion in LiFePO4, which promotes the adsorption of NO molecules and fast electron transfer for NO oxidation. The direct electrochemical tuning strategy significantly improves sensing performance, making it the highest sensitivity NO sensor among all nonprecious material-based sensors.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Ashish Khandelwal, Shashi Bala Singh, Anamika Sharma, Lata Nain, Eldho Varghese, Neera Singh
Summary: Three fungal strains isolated from oily sludge contaminated soil, including Trichoderma atroviride, Aspergillus nidulans, and Aspergillus sydowii, were found to have the potential to degrade aliphatic hydrocarbons/crude oil. The degradation of aliphatic hydrocarbons was more efficient during the initial days of incubation (15 days) as compared to 30 days.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Jyoti Singh, Abha Sharma, Pushpendra Sharma, Govind Singh Tomar, Minakshi Grover, Surender Singh, Lata Nain
Summary: This study successfully produced multiple high-value products, such as bioethanol, microbial lipids, and lactic acid, using mixed lignocellulosic biomass.
NATURAL PRODUCT RESEARCH
(2023)
Article
Chemistry, Physical
Pargam Vashishtha, Lalit Goswami, Shubhendra K. Jain, Neha Aggarwal, Govind Gupta
Summary: This study presents a novel GaN pyramids of Djoser ultraviolet photodetector that operates at high temperature and demonstrates high performance, including the ability to detect weak optical signals and exhibit self-powered behavior. The device's unique Djoser-pyramidal structure contributes to its extraordinary performance, providing decreased surface stress and dislocations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Anuj Vinod, Anuj Krishna, N. Vijayan, Ravinder Kumar, S. Kiran, Subhasis Das, S. Swarupa Tripathy, Govind Gupta, Nahar Singh
Summary: Vitamin C, also known as L-ascorbic acid, is essential for living organisms. It has high water solubility and nonlinear optical properties. Single crystal of the titled material was grown using slow evaporation solution technique. The crystal's structure was characterized and found to be in accordance with literature with good crystallinity. Optical performance, functional groups, surface morphology, and mechanical strength of the crystal were evaluated, indicating its potential for nonlinear optical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Physics, Condensed Matter
Pargam Savita, Pargam Vashishtha, Govind Gupta, Ankush Vij, Anup Thakur
Summary: In this work, intense red-NIR emission and color tuning are achieved for broad UV/blue/green excitation range in Cr-doped MgAl2O4 nanocrystals. The defect centers induced by Cr dopants and cation inversion in the crystal structure play a critical role in the emission. The red-NIR emission is enhanced under UV excitation and the emission color can be tuned from red purple to bluish purple and then to red with increasing doping concentration.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Anuj Sharma, Urvashi Varshney, Aditya Yadav, Pargam Vashishtha, Preetam Singh, Govind Gupta
Summary: This article introduces a ultra-sensitive gas sensor based on WSe2 nanorods, which can detect low concentrations (ppb level) of nitric oxide. The sensor shows high selectivity and stability, with fast response and recovery time. The device has potential applications in environmental monitoring, biomedical field, and wearable devices for real-time nitric oxide tracking.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Sonali Mehra, Jyoti Saroha, Ekta Rani, Vikash Sharma, Lalit Goswami, Govind Gupta, A. K. Srivastava, Shailesh Narain Sharma
Summary: Semiconductor photocatalysts, such as SrTiO3 nanoparticles, are widely used for degrading organic pollutants in water through photocatalysis. This study focuses on the photocatalytic degradation of methyl orange and methylene blue using SrTiO3 as a photocatalyst in de-ionized and hard water. The addition of Ag and Au nanoparticles to SrTiO3 enhanced its photocatalytic activity, with Au yielding better results. However, bare SrTiO3 and its composites did not show any degradation of methyl orange in both de-ionized and hard water.
Article
Engineering, Electrical & Electronic
Pargam Vashishtha, Manoj Kumar, Pukhraj Prajapat, Jahangeer Ahmed, Vidya Nand Singh, Govind Gupta
Summary: By utilizing ultraviolet-responsive gallium nitride (GaN) and infrared-activated tin selenide (SnSe), a broadband heterojunction-based optical detector was fabricated, combining the detection capabilities of GaN in the ultraviolet to visible range and SnSe in the visible to shortwave-infrared range. The detector exhibited high responsivity, low dark current, and edge contact geometry for direct access to the heterostructure interface of both materials. The device showed excellent performance across the ultraviolet-C to shortwave-infrared region, with a maximum responsivity of 128 AW-1, a noise equivalent power of 5.2 x 10-14 WHz- 1/2, and a quantum efficiency of 5 x 104% for ultraviolet illumination, and a maximum responsivity of 6.06 AW-1 and noise equivalent power of 1 x 10-12 WHz- 1 for infrared illumination. This research opens up new possibilities for wideband detection in optoelectronic applications utilizing heterostructure-based devices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Review
Materials Science, Multidisciplinary
Pukhraj Prajapat, Deependra Kumar Singh, Govind Gupta
Summary: III-nitrides are versatile materials that have the potential to be used in a wide range of interdisciplinary applications. However, the quality and performance of conventional III-nitride devices are constrained due to lattice and thermal mismatches with the substrate. This issue can be addressed by growing III-nitrides on unconventional substrates, which have significantly reduced mismatches and potential advantages such as wavelength tunability and lower efficiency droop. This perspective critically examines recent advances in III-nitride epitaxy on unconventional substrates and explores the challenges and constraints of practical implementation.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Varnam Sherawat, Renuka Bokolia, Ravindra Kumar Sinha
Summary: The present study investigates the temperature dependence of a three-dimensional diamond lattice photonic crystal. It establishes that the structure has a complete photonic bandgap at 1550 nm and shows a linear temperature dependence for the band-edge and mid-bandgap wavelengths. The sensitivity of the structure for temperature sensing applications is observed to be 0.0518 nm/K. The study also analyzes the effect of dielectric constant and fill factor on the gap-to-midgap ratio and explores the structure's potential as a refractive index sensor for blood components with a sensitivity of 254.9 nm/RIU.
Article
Chemistry, Multidisciplinary
Anchal Rana, Aditya Yadav, Govind Gupta, Abhimanyu Rana
Summary: We present an efficient method of growing infrared (IR) sensitive mixed phase of V7O16 and V2O5 thin films at low temperatures. The mixed phase can be stabilized by annealing amorphous VxOy at 300-400 degrees C, and is fully converted into V2O5 after annealing at 450 degrees C. The optical transmission of the films increases with the content of V2O5, while the electrical conductivity and optical bandgap decrease. The IR sensitivity is explained by plasmonic absorption by the V7O16 degenerate semiconductor.
Article
Biotechnology & Applied Microbiology
Ashish Khandelwal, Ramya Sugavanam, Balasubramanian Ramakrishnan, Lata Nain, Vishal Nanavaty, Tirthankar Banerjee, Eldho Varghese, Neera Singh
Summary: A bacterial consortium and a fungus with crude oil degrading ability were used to degrade petroleum hydrocarbon in contaminated soil. The bacterial consortium showed better degradation performance and altered the soil bacterial community and metabolic pathways compared to the fungus treatment.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Ahmed Abutaleb, Shahzad Ahmed, Mohd Imran
Summary: Zinc oxide nanorods on WSe2 nanosheets were synthesized using a two-step method. The synthesized nanomaterials were characterized to confirm their structural and morphological properties. The resulting nanocomposite has a band gap suitable for visible light, overcomes the wide bandgap issue of ZnO, and is capable of adsorbing dye molecules. The fabrication of the nanocomposite improves the recombination rate and achieves high efficiency in photocatalytic degradation.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Materials Science, Multidisciplinary
Vishnu Aggarwal, Sudhanshu Gautam, Aditya Yadav, Rahul Kumar, Bipul Kumar Pradhan, Brajesh S. Yadav, Govind Gupta, Senthil Kumar Muthusamy, Sumeet Walia, Sunil Singh Kushvaha
Summary: Recently, there has been a great demand for highly responsive photodetectors that can detect a wide range of wavelengths. Researchers have successfully fabricated a broadband metal-semiconductor-metal photodetector by integrating sputtered Bi2Se3 with laser molecular beam epitaxy grown GaN film. This photodetector shows high responsivity in both the ultraviolet and near-infrared regions.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Optics
Pargam Vashishtha, Ajit Dash, Kapil Kumar, Pukhraj Prajapat, Mahesh Kumar, Sumeet Walia, Govind Gupta
Summary: This study presents a high-performance photodetector based on antimony selenide, which exhibits fast and high response as well as thermal stability across a wide range of wavelengths. The findings provide insights for designing high thermal stability detectors and promoting the use of such materials in photodetector applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Materials Science, Biomaterials
Izabela Stupka, Artur P. Biela, Bernard Piette, Agnieszka Kowalczyk, Karolina Majsterkiewicz, Kinga Borzecka-Solarz, Antonina Naskalska, Jonathan G. Heddle
Summary: Artificial protein cages, such as TRAP-cages, have potential applications in vaccines and drug delivery. TRAP-cages have the ability to control the disassembly conditions by modifying the interface between their building blocks. By using TRAP rings with different numbers of monomers, it is possible to predict the formation of other cages.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Guo Zhang, Yu Wang, Hua Qiu, Lei Lu
Summary: This study presents a one-pot synthesis method for flower-like AMPs@EAMP particles by combining antimicrobial peptides with ellagic acid, offering enlarged surface area, excellent biocompatibility, and broad-spectrum antibacterial activity. In vivo studies indicate their potential for tissue repair and immune barrier reconstruction.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Jiamei Zhang, Lingshuang Wang, Cheng Xu, Yingui Cao, Shengsheng Liu, Rui L. Reis, Subhas C. Kundu, Xiao Yang, Bo Xiao, Lian Duan
Summary: Pluronic F127 modified silk fibroin film with different types of antibacterial agents could accelerate wound recovery by promoting fibroblast adhesion, eradicating bacteria, and facilitating angiogenesis and re-epithelialization.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Yinsheng Liu, Mingyue Wang, Yinfei Hui, Lei Sun, Yanrui Hao, Henlong Ren, Hao Guo, Wu Yang
Summary: In this study, a rare-earth hybrid luminescent material was developed for the detection of a biomarker for anthrax. The material showed excellent selectivity and high sensitivity, allowing for the determination of the biomarker in saliva and urine. Additionally, a convenient point-of-care testing method using fluorescent test paper and a smartphone was established for the initial diagnosis of anthrax.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Review
Materials Science, Biomaterials
Wenshuai Yang, Jingsi Chen, Ziqian Zhao, Meng Wu, Lu Gong, Yimei Sun, Charley Huang, Bin Yan, Hongbo Zeng
Summary: Injectable hydrogels with shear-thinning and/or in situ formation properties offer distinct advantages in bioengineering applications, as they can be directly delivered to target sites, possess self-healing abilities, and simplify the implantation process.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
