Article
Chemistry, Physical
Andrea Guadagnini, Stefano Agnoli, Denis Badocco, Paolo Pastore, Diego Coral, Marcela B. Fernandez van Raap, Daniel Forrer, Vincenzo Amendola
Summary: Despite the immiscibility of silver and cobalt at any temperature, silver nanoparticles doped with cobalt were successfully synthesized using laser ablation in liquid, retaining the silver's plasmonic response and cobalt's magnetic properties. The stability and potential technological applications of these bimetallic nanoparticles make them promising candidates for various fields.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shahid Wahab, Haroon Muhammad Ali, Maham Khan, Tariq Khan, Chandran Krishnaraj, Soon-Il Yun
Summary: In this study, we synthesized chitosan nanoparticles, silver nanoparticles, and chitosan/silver nanocomposites using aqueous ginger extract as a green approach. These nanomaterials showed significant antibacterial properties and low toxicity. Furthermore, the nanomaterials conjugated with tobramycin demonstrated enhanced antibacterial efficacy and exhibited interactions with Pseudomonas aeruginosa.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Optics
Vita Petrikaite, Ilja Ignatjev, Algirdas Selskis, Gediminas Niaura, Evaldas Stankevic
Summary: This study presents the generation of hybrid gold-silver nanoparticles through thermal heating thin metal films on a glass surface with a nanosecond pulsed laser. The optical properties of the obtained nanoparticles can be tuned by varying the ratio and order of the primary films, allowing for control over localized surface plasmon resonance. These engineered substrates act as highly enhanced SERS substrates at different excitation wavelengths and can be produced on a large scale using a laser-based process.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Polymer Science
Erisna Mirda, Rinaldi Idroes, Khairan Khairan, Trina Ekawati Tallei, Muliadi Ramli, Nanda Earlia, Aga Maulana, Ghazi Mauer Idroes, Muslem Muslem, Zulkarnain Jalil
Summary: The synthesis and characterization of silver nanoparticle-chitosan composite particles were completed using various analytical techniques. The results showed that under specific conditions, the particles exhibited optimal physical and structural properties, with good antimicrobial activity.
Article
Chemistry, Multidisciplinary
Ioana Ghiuta, Catalin Croitoru, Joseph Kost, Rodica Wenkert, Daniel Munteanu
Summary: This study investigated the synthesis of silver and silver chloride nanoparticles mediated by microbes and assessed their potential application in antimicrobial activity.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Chemical
Liangliang Lin, Xuanhe Li, Juan Zhou, Jinglin Zou, Jiahui Lai, Zhanghao Chen, Jie Shen, Hujun Xu
Summary: In this study, silver nanoparticles were prepared using a microplasma-aided approach without the need for traditional chemical reductants, and then compounded with a gemini cationic surfactant to form a nano-surfactant system with improved antibacterial activity and stability. The synergistic effects of the compounding system were studied, demonstrating well-dispersed AgNPs in the presence of the surfactant and enhanced antibacterial activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Biotechnology & Applied Microbiology
Rabia Khan, Humaira Naureen, Aneela Javed, Madiha Khalid, Hina Khan
Summary: In this study, silver nanoparticles (AgNPs) were successfully synthesized using the aqueous extract of Alocasia odora plant. The cytotoxicity of the AgNPs was higher than the extract alone on U87-MG human glioblastoma cancer cell line, and the nanoparticles also showed significant reduction in dengue viral infection compared to the extract alone. These findings suggest that AgNPs can be potential antiviral drug candidates.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Milos Ognjanovic, Katarina Nikolic, Marina Radenkovic, Aleksandar Lolic, Dalibor Stankovic, Sanja Zivkovic
Summary: Gallic acid is an important natural phenolic compound with well-known biological properties. This study successfully prepared silver nanoparticles using pulsed laser ablation technique and used them to modify carbon electrodes for the detection of gallic acid. A differential pulse voltammetric protocol was developed for accurate measurement of gallic acid and its antioxidant capacity.
SURFACES AND INTERFACES
(2022)
Article
Polymer Science
Oksana Velgosova, Livia Macak, Maksym Lisnichuk, Marek Vojtko
Summary: A chemical method was used to synthesize silver nanoparticles of various shapes. The shape of the nanoparticles affects the color of the colloid, and the ratio between precursor, reducing, and stabilizing agents is crucial for nanoparticle formation. The shape and size of AgNPs change over time, leading to a dichroic effect.
Article
Chemistry, Analytical
M. A. Wakil, Zeyad T. Alwahabi
Summary: Microwave-assisted laser induced breakdown spectroscopy (MW-LIBS) is capable of detecting silver in solid and liquid samples, with different limits of detection, and the calibration curve established using a gated detector shows a high level of accuracy.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Biology
Azmat Ali Khan, Amer M. Alanazi, Nawaf Alsaif, Tanveer A. Wani, Mashooq A. Bhat
Summary: PG-AgNPs synthesized from pomegranate peel extract exhibit significant antibacterial and anticancer potential, especially demonstrating strong apoptotic induction effects on metastatic breast cancer cells.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Tianrui Li, Hao Zhang, Jinling Miao, Chunyue Xu, Yong Nie, Guangning Liu, Guoxin Sun, Xuchuan Jiang
Summary: This study investigates the synthesis and properties of o-carborane-tetraphenylethene compounds. The results demonstrate that the carborane and linker have significant effects on the solid state structures and luminescence properties of the compounds. Additionally, the compounds exhibit mechano-and thermofluorochromic properties.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Danni Feng, Renyin Zhang, Mengting Zhang, Ashe Fang, Feng Shi
Summary: In this study, silver nanoparticles were synthesized using glycyrrhizin as a reducing agent and stabilizer. The synthesized nanoparticles showed high antibacterial activity against Escherichia coli and Staphylococcus aureus, and low cytotoxicity to human kidney epithelial cells. The results suggest that glycyrrhizin-reduced silver nanoparticles have potential applications in antibacterial treatments.
Article
Chemistry, Physical
Ahmed I. El-Tantawy, Shimaa M. Elsaeed, Rana R. Neiber, Wael H. Eisa, Abdel Aleem H. Abdel Aleem, Ahmed A. El-Hamalawy, Mai S. Maize
Summary: Two novel mono-and bis-thioureidophosphonate cores (MTP & BTP) were synthesized in ionic liquid conditions and incorporated with silver nanoparticles (Ag NPs), resulting in two heterogeneous nanocatalysts (Ag NP/MTP and Ag NP/BTP). The as-fabricated Ag NP/TP nanocomposites exhibited good dispersion of Ag NPs and the catalytic properties were verified through the chemical conversion of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP).
SURFACES AND INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Nitin Kumar Sharma, Jyotsna Vishwakarma, Summi Rai, Taghrid S. Alomar, Najla AlMasoud, Ajaya Bhattarai
Summary: The development of reliable and environmentally-friendly techniques for nanoparticle synthesis, known as green nanotechnology, is gaining attention. Natural sources, such as bacteria, fungi, biopolymers, and plants, are suitable candidates for synthesizing silver nanoparticles (AgNPs). The synthesis conditions significantly impact the morphology and applications of AgNPs. This review focuses on the recent use of natural sources for AgNP synthesis and discusses their properties and applications in various fields.
Article
Engineering, Electrical & Electronic
Yashwant Kurmi, Vijayshri Chaurasia, Aditya Goel, Deepti Joshi, Neelkamal Kapoor
Summary: This paper presents a novel method for TB bacteria segmentation and classification using microscopic images (MI), including image enhancement, bacteria region masking, marking of bacteria points using the marked point process model, and identification of complete bacteria using superellipse and supervised variational contour models. The proposed method is superior to state-of-the-art methods in image classification.
SIGNAL IMAGE AND VIDEO PROCESSING
(2021)
Review
Medical Laboratory Technology
Ujjawal Khurana, Adesh Shrivastava, Rubal Jain, Garima Goel, Deepti Joshi, Neelkamal Kapoor
Summary: Neurohypophysis granular cell tumor is a rare entity classified under TTF-1 expressing tumors of pituitary, often considered as an uncommon differential diagnosis during evaluation of sellar and suprasellar masses. Its distinct intraoperative squash cytology, with spindle cell lesion and granular cytoplasm, should be recognized in the evaluation of such masses.
DIAGNOSTIC CYTOPATHOLOGY
(2021)
Article
Chemistry, Physical
Jaspal Singh, Prachi Sharma, Nishant Tripathi, Daria Shishkina, Anastasiia Rymzhina, Elisey A. Boltov, Vladimir Platonov, Vladimir Pavelyev, Valentyn S. Volkov, Aleksey Arsenin, Rishikesh Singh, R. K. Soni, Mohammad Talib, Samrah Manzoor, Debosmita Banerjee, P. M. Z. Hasan, Ahmed Alshahrie, Reem Darwesh, Maria A. Anikina, Prabhash Mishra
Summary: Two-dimensional TiS3 nanostructures have been successfully employed for the removal of toxic-industrial pollutants in water bodies. The nanostructures, produced using the CVT technique, exhibit exceptional photocatalytic properties for potential environmental applications. Under IR irradiation, the TiS3 nanoribbons demonstrate high disintegration percentage, effectively decomposing methyl-orange and methyl-blue solutions.
CATALYSIS COMMUNICATIONS
(2022)
Article
Spectroscopy
Ashwani Kumar Verma, Ravi Kant Soni
Summary: Multibranched silver nanostructures have been synthesized and studied for their high sensitivity in SERS detection, particularly in detecting explosive molecules.
JOURNAL OF RAMAN SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Govind Kumar, Ravi Kant Soni
Summary: This study presents a simple route to design highly sensitive SERS substrates based on triangular silver nanoplates, achieved by controlling the reaction kinetics and seed volume in a modified seed-mediated approach to tune the localized surface plasmon resonance. The research reveals that the size, shape, and dipolar plasmon resonance wavelength of the silver nanoplates are the principal contributing factors for designing high-performance SERS substrates.
Article
Chemistry, Physical
Jaspal Singh, R. K. Soni, Jeongyong Kim
Summary: Surfactant-free In(2)S(3) nanoflowers were prepared by the thermal assembly of two-dimensional In2S3 nanosheets, leading to a substantial enhancement of optical absorption and tunable bandgap narrowing, thus improving the photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Spectroscopy
Govind Kumar, Ravi Kant Soni
Summary: We report the successful detection of trace-level molecules using deep-UV surface-enhanced Raman spectroscopy (SERS) on shape-anisotropic rhodium (Rh) nanoparticles. Rh concave nanocubes exhibited the highest SERS activity, with great detection sensitivity. The deep-UV SERS technology based on Rh nanoparticles holds tremendous potential for the identification of hazardous materials.
JOURNAL OF RAMAN SPECTROSCOPY
(2022)
Article
Materials Science, Multidisciplinary
Ashwani Kumar Verma, R. K. Soni
Summary: In this study, hybrid Sn-Au SERS substrates composed of AuNPs deposited on textured Sn substrates were fabricated and used for ultra-trace analyte detection. The substrates exhibited hierarchically arranged sharp micro-pyramids with densely decorated micro/nano-surface features, resulting in high SERS performance. The synthesized substrates showed versatility in detecting a wide range of analytes with highly reproducible SERS signals and low limit-of-detection concentrations.
Article
Surgery
Shakti Kumar Yadav, Saikat Das, Deepti Joshi, Shyam Lal, Neelkamal Kapoor
Summary: This article describes a rare case of giant cell tumor of soft tissue, which usually affects the superficial and deep tissues of the extremities and trunk. The patient presented with a painful mass and was diagnosed through histopathology. Complete surgical resection with adjuvant radiotherapy was performed and the patient remained disease-free at one-year follow-up.
INTERNATIONAL JOURNAL OF SURGERY CASE REPORTS
(2023)
Article
Optics
A. K. Verma, R. K. Soni
Summary: We report a facile synthesis strategy of bimetallic ultra-thin shell-wrapped gold-palladium (Au-Pd) core@shell nanoparticles (NPs) employing the liquid-assisted pulsed laser ablation (LA-PLA) technique. The bimetallic nanoparticles were prepared by double-step successive and single-step simultaneous laser ablation in the presence of precursor solutions. The columbic attraction of the metal ions in the solution with the ablated metal nanoparticles ensures the uniform wrapping of ultra-thin shell layer through the electrostatic self-assembly.
OPTICS AND LASER TECHNOLOGY
(2023)
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
Medical Laboratory Technology
Satyam Mishra, Ujjawal Khurana, Neelkamal Kapoor, Ankur Joshi, Deepti Joshi
Summary: This study evaluates the utility of cellular and nuclear morphometry in differentiating squamous cell abnormality and benign conditions, as well as differentiating the categories of squamous cell abnormalities. Parameters such as nuclear area, perimeter, diameter, compactness, cellular area, diameter, perimeter, and nucleocytoplasmic ratio were used. Results show significant differences in these parameters among different squamous cell abnormality groups, with the nucleocytoplasmic ratio being able to differentiate between low-grade and high-grade lesions.
JOURNAL OF CYTOLOGY
(2023)
Article
Immunology
Ashwin Kotnis, Girish C. Bhatt, Deepti Joshi, Arvind K. Shukla, Palak Gupta, Dishant Shah, Bharat Choudhary, Rajesh Patil, Shiv Dubey, Mukesh Shukla, Ankur Joshi, Abhijit P. Pakhare
Summary: The risk of dietary zinc inadequacy and low serum zinc concentration among adolescents from Gond, Bhil, and Korku tribes is a public health concern.
INDIAN JOURNAL OF MEDICAL RESEARCH
(2022)
Article
Pathology
Abhishek Goyal, Yogesh Niwariya, Garima Goel, Deepti Joshi, Saurabh Saigal, Druva Vinay Gella
Summary: This study describes postmortem open lung-biopsy findings in COVID-19 pneumonia patients on anticoagulant therapy, revealing histopathological changes including lung inflammation and thrombosis, which may indicate the natural history of severe COVID-19 pneumonia or variations in therapeutics.
INDIAN JOURNAL OF PATHOLOGY AND MICROBIOLOGY
(2022)
Article
Medicine, General & Internal
M. Atlani, N. K. Kapoor, D. Joshi, R. Sutar, T. Sharma, A. Joshi
Summary: The short-term renal outcomes for Indian patients with renal immune diseases are poor, especially for patients with focal segmental glomerulosclerosis (FSGS). Hypertension and failure to achieve proteinuria remission are significantly associated with poor renal outcomes.
JOURNAL OF POSTGRADUATE MEDICINE
(2022)