Article
Chemistry, Multidisciplinary
Fatimah Al-Otibi, Luluwah S. S. Albulayhid, Raedah I. I. Alharbi, Atheer A. A. Almohsen, Ghada M. M. AlShowiman
Summary: The study evaluated the anti-candida effects of silver nanoparticles (AgNPs) synthesized from an aqueous extract of C. citratus against different Candida spp. The AgNPs showed significant inhibition of the growth of all species and also inhibited the biofilm maturation in C. famata and C. albicans. These considerable antifungal activities could potentially be used as an alternative remedy for the treatment of fungal infections.
Article
Chemistry, Physical
K. Chandramouli, B. Suryanarayana, T. Anil Babu, Vemuri Raghavendra, D. Parajuli, N. Murali, Venkaiah Malapati, Tulu Wegayehu Mammo, P. S. Shanmukhi, Umesh Reddy Gudla
Summary: The structure, particle size, and antibiotic nature of synthesized ZnO nanoparticles were studied using XRD, TEM, and FTIR, revealing spherical particles with a single wurtzite hexagonal crystal structure. The correlation between defect and antibiotic properties of ZnO was identified.
SURFACES AND INTERFACES
(2021)
Article
Biotechnology & Applied Microbiology
Ajmal Khan, Humera Jabeen, Touqeer Ahmad, Najeeb Ur Rehman, Saleha Suleman Khan, Huma Shareef, Rizwana Sarwar, Saira Yahya, Nusrat Hussain, Jalal Uddin, Javid Hussain, Ahmed Al-Harrasi
Summary: The study successfully synthesized cephradine gold nanoparticles and cephradine silver nanoparticles, with gold nanoparticles showing more activity against methicillin-resistant Staphylococcus aureus and Streptococcus mutans. These nanoparticles have the potential to be used in the treatment of diseases associated with MRSA and S. mutans.
ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
C. S. Shivananda
Summary: Colloidal silver nanoparticles were synthesized using aqueous silk fibroin under white light and at ambient temperature. The nanoparticles exhibited a characteristic surface plasmon resonance band in the UV-Vis spectrum and were spherical with smooth surfaces, with sizes ranging from 35 to 40 nm. X-ray diffraction analysis confirmed the presence of silver nanocrystals with an FCC crystal structure. These biogenic silver nanoparticles showed significant antibacterial activity against human bacterial pathogens and also exhibited excellent anti-cancer activity at low dosage.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Brajesh Kumar, Kumari Smita, Erika Sanchez, Alexis Debut, Luis Cumbal
Summary: The study presents a green synthetic route for the fabrication of gold nanoparticles (AuNPs) using Sacha inchi leaf extract as a reducing and stabilizing agent. The synthesized AuNPs were characterized by various techniques, confirming their morphology, crystallinity, and surface properties. The AuNPs showed excellent catalytic activity in the reduction of an organic dye. The study highlights the simplicity, cost-effectiveness, and ecofriendly nature of the adopted method, and also emphasizes the potential application of Sacha inchi plant in the international markets.
Article
Materials Science, Multidisciplinary
Palani Manogar, Jobu Esther Morvinyabesh, Ponnusamy Ramesh, Gnanasekar Dayana Jeyaleela, Venkatesan Amalan, Jamaan S. Ajarem, Ahmed A. Allam, Jong Seong Khim, Natesan Vijayakumar
Summary: The synthesis of green aluminum oxide nanoparticles using Lyngbyamajucula algae extract is a potential approach in material science and nanotechnology. These nanoparticles showed antibacterial activity against a variety of pathogens and may be effective in treating human illnesses.
Article
Chemistry, Multidisciplinary
Ghadir Ali, Aftab Khan, Asim Shahzad, Aiyeshah Alhodaib, Muhammad Qasim, Iffat Naz, Abdul Rehman
Summary: This study synthesized silver nanoparticles (AgNPs) using extracts from Persicaria hydropiper and found that the synthesized AgNPs enhanced the efficacy of antibiotics against multidrug-resistant bacteria. This research provides a new treatment approach for infectious diseases caused by drug-resistant bacteria.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Manal A. El Sayed, Nahla T. Elazab, Malek Gassoumi, Magdy A. M. Ibrahim
Summary: This research presents a successful method for synthesizing nanocrystalline silver coatings using electrodeposition from an environmentally friendly electrolyte. The obtained silver coatings from this cyanide-free electrolyte exhibit bright and adherent nanocrystalline structures, and show excellent antibacterial properties against both gram-positive and gram-negative bacteria.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Physical
Brajesh Kumar, Kumari Smita, Erika Sanchez, Alexis Debut, Luis Cumbal
Summary: In this study, silver nanoparticles (AgNps) were successfully biosynthesized and stabilized using Andean Sacha inchi seed flour. Characterization techniques confirmed the spherical shape and average size range of 10-40 nm for the AgNps, as well as their stability and photocatalytic degradation activity against methyl orange dye.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Polat Ipek, Resit Yildiz, Mehmet Firat Baran, Abdulkerim Hatipoglu, Ayse Baran, Albert Sufianov, Ozal Beylerli
Summary: In recent decades, there has been an increasing research interest in metal nanoparticles as alternatives to cancer treatments and antibiotics. This article presents a comprehensive characterization of silver nanoparticles (AgNPs) produced from Papaver rhoeas leaf extract using various spectroscopic, microscopic, structural, and analytic techniques. The study reveals that PR-AgNPs are spherical with a maximum surface plasmon resonance of 464.03 nm, and have high thermal stability and antibacterial activity. The cytotoxic and proliferative effects of PR-AgNPs on various cancer cell lines are also evaluated. The findings highlight the potential of PR-AgNPs in nanomedicine and nanochemistry.
Article
Biotechnology & Applied Microbiology
Nessma A. EL-Zawawy, Alaa M. Abou-Zeid, Doha M. Beltagy, Nada H. Hantera, Hoda S. Nouh
Summary: In this study, silver nanoparticles (Myco-SNPs) were successfully synthesized using the mycelial filtrate of Aspergillus flavipes, which showed high antibacterial activity against multidrug-resistant wound pathogens and supported the viability of human skin fibroblast cells.
MICROBIAL CELL FACTORIES
(2023)
Article
Materials Science, Ceramics
Amna Ajmal, Mohamed E. El Sayed, Muhammad Farooq Warsi, Mohammad N. Murshed, Ahmed Samir, Zeinhom M. El-Bahy, Sana Munir
Summary: Al-doped BiSbO4 nanoparticles and reduced graphene oxide composite were synthesized using hydrothermal and ultrasonication methods. Structural confirmation was done using XRD, while morphology was studied using SEM. UV-VIS spectroscopy and FTIR were used to observe the optical properties and vibrational modes. The results showed that the BiSbO4/rGO composite exhibited extraordinary efficiency in degrading dyes.
CERAMICS INTERNATIONAL
(2023)
Article
Crystallography
Asma S. Al-Wasidi
Summary: The structures of four 1:1 pipemidic acid-metal complexes (magnesium(II), calcium(II), zinc(II), and iron(III)) were synthesized and analyzed using various techniques. The coordination mode of the deprotonated pipemidic acid ligand to the metal ions was determined, and the nanostructured form of the complexes was confirmed by XRD and TEM analyses. The thermodynamic parameters of activation were calculated based on thermogravimetric curves using Coats-Redfern and Horowitz-Metzeger methods.
Article
Chemistry, Inorganic & Nuclear
Brajesh Kumar, Kumari Smita, Pavel Borovskikh, Alexandr Shchegolkov, Alexis Debut, Luis Cumbal
Summary: The bioactive constituents of rambutan peel extract were used to synthesize gold nanoflowers efficiently, demonstrating high catalytic activity and a facile, sustainable synthesis method for the development of valuable products in nanotechnology.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Sapna Thakur, Mamta Shandilya, Geetika Guleria
Summary: In this study, ZnO nanoparticles were successfully synthesized using plant and leaf extracts as reducing agents, with secondary metabolites from the extracts playing a crucial role. SEM and EDX analysis revealed the influence of plant extracts on the growth mechanism and surface morphology of the nanoparticles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
R. M. Tripathi, Sang J. Chung
SCIENTIFIC REPORTS
(2020)
Article
Biochemistry & Molecular Biology
Ravi Mani Tripathi, Dohee Ahn, Yeong Mok Kim, Sang J. Chung
Article
Biochemistry & Molecular Biology
Ravi Mani Tripathi, Sang J. Chung
Article
Chemistry, Multidisciplinary
Ravi Mani Tripathi, Sang J. Chung
Summary: Copper-loaded tin oxide (SnO2-Cu) nanocomposites were developed for rapid oxidation of TMB, demonstrating strong absorption and high sensitivity in colorimetric detection. This environmentally friendly synthesis method offers low cost, high stability, and ease of preparation for enzyme mimetic applications.
Review
Chemistry, Analytical
Ayushi Bisht, Abhishek Mishra, Harender Bisht, R. M. Tripathi
Summary: Nanomaterial-based detection technology offers advantages in selectivity and sensitivity, making it ideal for developing portable detection kits for rapid and accurate detection of the COVID-19 virus.
JOURNAL OF ANALYSIS AND TESTING
(2021)
Review
Instruments & Instrumentation
Sharath Kumar Hari, Ankita Gauba, Neeraj Shrivastava, Ravi Mani Tripathi, Sudhir Kumar Jain, Akhilesh Kumar Pandey
Summary: Polymeric micelles (PMs) are multifunctional nanoparticles with promising applications in cancer therapeutics. They can alter drug release profile and concentrate drugs in the target zone, making them suitable for poorly soluble medicines. Moreover, PMs can serve as smart drug carriers, targeting specific cancer sites using various stimuli and improving the efficacy of targeted drug delivery.
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Sanya Mishra, Abdalla Abdal-hay, Sami Ullah Rather, Ravi Mani Tripathi, Faheem A. Shekh
Summary: Due to the instability and high cost of natural enzymes, nanozymes have emerged as promising alternatives in various applications. With their unique physicochemical properties, nanozymes possess enzyme-like activity and can overcome the limitations of natural protein-based enzymes. Tuning the catalytic activity of nanozymes provides specificity, benefiting disease diagnosis and drug delivery.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Analytical
Ravi Mani Tripathi, Sang J. Chung
Summary: A highly sensitive and selective colorimetric assay using biogenic palladium nanoparticles (Pd NPs) was developed for the detection of uric acid. The instrument-free detection had a limit of detection of 0.05 μM and a limit of quantification of 1.11 μM. The assay showed a linear response in the concentration range of 0.05 to 1 μM with a linear regression correlation coefficient of 0.99841. This colorimetric detection provides a rapid, cost-effective, and easy-to-use platform for the clinical diagnosis of uric acid biomarkers.
Article
Green & Sustainable Science & Technology
Hasham S. Sofi, Abdalla Abdal-hay, Rumaisa Rashid, Asma Rafiq, Sami-ullah Rather, Mushtaq A. Beigh, Salman H. Alrokayan, Haseeb A. Khan, Ravi Mani Tripathi, Faheem A. Sheikh
Summary: In this study, fish collagen molecules were coated onto polyurethane fibers using a hydrothermal precipitation approach, improving their wettability. The fiber diameter increased while the pore size decreased, and the water contact angle decreased. The concentration of the coating solution and collagen loading had a significant effect on the material properties.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Applied
Abhishek Mishra, Ekta Arjundas Kukreja, Ramesh Namdeo Pudake, Robin Kumar, Manoj Pratap Singh, Lalit Yadav, Ishan Pandey, Faheem A. Sheikh, Ravi Mani Tripathi
Summary: The overuse of antibiotics like ampicillin in developing and industrializing countries leads to the evolution of drug-resistant bacteria and adverse effects on health. To address this issue, a colorimetric assay using poly(vinyl alcohol)-capped silver nanoparticles was developed to detect ampicillin. The assay exhibited good selectivity and sensitivity, with a detection limit of 6.2 μM. This method provides a real-time and easy-to-use platform for detecting ampicillin in actual samples.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Microbiology
Shradha Nirwan, Archana Kumari Sharma, Ravi Mani Tripathi, Aparna Maitra Pati, Neeraj Shrivastava
Summary: Albugo candida is a pathogenic fungus that causes white rust on Brassicaceae crops. It infects the aerial parts of the plants, including leaves, and causes the formation of white or creamy yellow blisters. Disease management strategies such as fungicide treatments and breeding disease-resistant varieties have been used. However, the high variability among A. candida isolates makes it difficult to understand the diverse symptoms of the disease.
MICROBIOLOGICAL RESEARCH
(2023)
Review
Medicine, Research & Experimental
Kirti Saxena, Akanksha Deshwal, Ramesh Namdeo Pudake, Utkarsh Jain, Ravi Mani Tripathi
Summary: This review summarizes recently employed biomarkers for diagnosing the presence of Helicobacter pylori bacteria and early gastric cancer, as well as their utilization in the development of a highly specific and sensitive biosensing platform.
BIOMARKERS IN MEDICINE
(2023)
Article
Chemistry, Inorganic & Nuclear
R. Pragadeeshwara Rao, Sanya Mishra, R. M. Tripathi, Sudhir Kumar Jain
Summary: The study presents a green synthesis method for polydisperse Bismuth Oxide nanorods using Ficus benghalensis leaf extract, with detailed characterization of their properties through XRD, UV, SEM, and FTIR. The synthesized BONRs were confirmed to have a single-phase (alpha - Bi2O3) crystalline structure, with a wide bandgap of 3.13 eV and an average diameter of 388 nm, demonstrating the role of leaf extract as a reducing and stabilizing agent.
INORGANIC AND NANO-METAL CHEMISTRY
(2021)
Article
Materials Science, Biomaterials
Ravi Mani Tripathi, Pearlin Hameed, R. Pragadeeshwara Rao, Neeraj Shrivastava, Jagjiwan Mittal, Swarti Mohapatra
Article
Chemistry, Analytical
Nishant Kumar, Akhshay Singh Bhadwal, Boris Mizaikoff, Suman Singh, Christine Kranz
SENSING AND BIO-SENSING RESEARCH
(2019)
