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JOURNAL ARTICLE
Morad G S S Al-Asbahi, Bashir A Al-Ofiry, Fuad A A Saad, Adnan Alnehia, Murad Q A Al-Gunaid
The biosynthesis of nanoparticles offers numerous advantages, including ease of production, cost-effectiveness, and environmental friendliness. In our research, we focused on the bioformation of silver nanoparticles (AgNPs) using a combination of Lactobacillus sp. and Bacillus sp. growth. These AgNPs were then evaluated for their biological activities against multidrug-resistant bacteria. Our study involved the isolation of Bacillus sp. from soil samples and Lactobacillus sp. from raw milk in Dhamar Governorate, Yemen...
May 3, 2024: Scientific Reports
#22
JOURNAL ARTICLE
Zhi Yang, Shuang Guo, Eungyeong Park, Yantao Sun, Yucun Liu, Lei Chen, Young Mee Jung
MXene sheets with the unique electrical and optical properties show the excellent potential for surface-enhanced Raman spectroscopy (SERS) applications. In this study, we chose Ti3 C2 Tx , a type of MXene, to decorate silver nanoparticles (Ag NPs) on the ultrathin two-dimensional (2D) MXene sheets. The designed Ag-MXene substrates with SERS activity showed high sensitivity, high stability, and reproducibility. The SERS signal was enhanced by the synergistic contribution of both charge-transfer (CT) and surface plasmon resonance (SPR) involving the Ag NPs and the MXene sheets...
April 29, 2024: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
#23
JOURNAL ARTICLE
Sarika B Hinge, Arun G Banpurkar, Gauri R Kulkarni
The antibacterial effect of nanoparticles is mainly studied on the ensembles of the bacteria. In contrast, the optical tweezer technique allows the investigation of similar effects on individual bacterium. E. coli is a self-propelled micro-swimmer and ATP-driven active microorganism. In this work, an optical tweezer is employed to examine the mechanical properties of E. coli incubated with ZnO and Ag nanoparticles (NP) in the growth medium. ZnO and Ag NP with a concentration of 10 µg/ml were dispersed in growth medium during active log-growth phase of E...
May 3, 2024: Archives of Microbiology
#24
JOURNAL ARTICLE
Haorun Guo, Yong Lin, Shaoqiang Gu, Gaohua Hu, Qian Wang, Chong Bai, Yuping Sun, Cheng Yang, Ting Fang, Xing Chen, Dongchan Li, Desheng Kong
Stretchable electroluminescent devices represent an emerging optoelectronic technology for future wearables. However, their typical construction on sub-millimeter-thick elastomers has limited moisture permeability, leading to discomfort during long-term skin attachment. Although breathable textile displays may partially address this issue, they often have distinct visual appearances with discrete emissions from fibers or fiber junctions. This study introduces a convenient procedure to create stretchable, permeable displays with continuous luminous patterns...
May 3, 2024: Nano Letters
#25
JOURNAL ARTICLE
Lei Xu, Xingmao Ma, John Yang, Joel G Burken, Paul Nam, Honglan Shi, Hu Yang
Engineered nanoparticles (ENPs) have been increasingly used in agricultural operations, leading to an urgent need for robust methods to analyze co-occurring ENPs in plant tissues. In response, this study advanced the simultaneous extraction of coexisting silver, cerium oxide, and copper oxide ENPs in lettuce shoots and roots using macerozyme R-10 and analyzed them by single-particle inductively coupled plasma-mass spectrometry (ICP-MS). Additionally, the standard stock suspensions of the ENPs were stabilized with citrate, and the long-term stability (up to 5 months) was examined for the first time...
May 3, 2024: Journal of Agricultural and Food Chemistry
#26
JOURNAL ARTICLE
Gülcihan Gülseren, Zeynep Demirsoy, Merve Şeker, O Mer Büyükünal
Unlocking the potential of metal nanoparticles (NPs) in biomedical applications represents a leading endeavor in contemporary research. Among these, gold NPs (AuNPs) and silver NPs (AgNPs) have shown promising strides in combatting complex neurodegenerative ailments like Alzheimer's disease. Yet, the unexplored realm of bimetallic Au/Ag-NP harbors immense potential, concealing undiscovered opportunities for enhanced therapeutic effectiveness through the synergistic interaction of metal ions. Nonetheless, the limitations of traditional synthesis methods have restricted the preparation, biocompatibility, and versatility of these NPs, prompting an urgent requirement for innovative approaches...
May 2, 2024: Molecular Pharmaceutics
#27
JOURNAL ARTICLE
Parvathalu Kalakonda, Rajitha Kathi, Merlinsheeba Gali Ligory, Naveenkumar Dabbeta, Naveenkumar Madipoju, Soujanyalakshmi Mynepally, Vijay Morampudi, Sreenivas Banne, Pritam Mandal, Ramu Naidu Savu, Sarvani Jowhar Khanam, Murali Banavoth, Naina Vinodini Sudarsanam Eve, Bala Bhaskar Podila
Our study specifically explores the biosynthesis of copper-silver bimetallic nanoparticles (Cu-Ag BMNPs) using Argyreia nervosa (AN) plant leaf green extract as a versatile agent for capping, reducing, and stabilizing. This biosynthesis method is characterized by its simplicity and cost-effectiveness, utilizing silver nitrate (AgNO3 ) and cupric oxide (CuO) as precursor materials. Our comprehensive characterization of the Cu-Ag BMNPs, employing techniques such as X-ray diffraction (XRD), UV-Vis spectrometry, scanning electron microscopy (SEM), Zetasizer, and Fourier transformed infrared spectrometry (FTIR)...
May 3, 2024: Bioprocess and Biosystems Engineering
#28
JOURNAL ARTICLE
Aminah Mourad ElMourad, Ahoud Al-Shamrani
To assess the impact of various cavity disinfectants PC-PDT (Phycocyanin activated by Photodynamic therapy), PC@AgNPs-PDT (Phycocyanin and silver nanoparticles activated by PDT), and Nd: YAG laser on the survival rate of S.mutans and the bond integrity of composite restoration METHODS: Sixty human mandibular molars that scored 4 and 5 based on ICDAS criteria were included. The infected dentin was removed while the CAD was preserved based on visual, tactile, and staining assessment. S.mutans were cultured on the CAD of twenty samples...
April 30, 2024: Photodiagnosis and Photodynamic Therapy
#29
JOURNAL ARTICLE
Hector R Mendez-Gomez, Anna DeVries, Paul Castillo, Christina von Roemeling, Sadeem Qdaisat, Brian D Stover, Chao Xie, Frances Weidert, Chong Zhao, Rachel Moor, Ruixuan Liu, Dhruvkumar Soni, Elizabeth Ogando-Rivas, Jonathan Chardon-Robles, James McGuiness, Dingpeng Zhang, Michael C Chung, Christiano Marconi, Stephen Michel, Arnav Barpujari, Gabriel W Jobin, Nagheme Thomas, Xiaojie Ma, Yodarlynis Campaneria, Adam Grippin, Aida Karachi, Derek Li, Bikash Sahay, Leighton Elliott, Timothy P Foster, Kirsten E Coleman, Rowan J Milner, W Gregory Sawyer, John A Ligon, Eugenio Simon, Brian Cleaver, Kristine Wynne, Marcia Hodik, Annette M Molinaro, Juan Guan, Patrick Kellish, Andria Doty, Ji-Hyun Lee, Tara Massini, Jesse L Kresak, Jianping Huang, Eugene I Hwang, Cassie Kline, Sheila Carrera-Justiz, Maryam Rahman, Sebastian Gatica, Sabine Mueller, Michael Prados, Ashley P Ghiaseddin, Natalie L Silver, Duane A Mitchell, Elias J Sayour
Cancer immunotherapy remains limited by poor antigenicity and a regulatory tumor microenvironment (TME). Here, we create "onion-like" multi-lamellar RNA lipid particle aggregates (LPAs) to substantially enhance the payload packaging and immunogenicity of tumor mRNA antigens. Unlike current mRNA vaccine designs that rely on payload packaging into nanoparticle cores for Toll-like receptor engagement in immune cells, systemically administered RNA-LPAs activate RIG-I in stromal cells, eliciting massive cytokine/chemokine response and dendritic cell/lymphocyte trafficking that provokes cancer immunogenicity and mediates rejection of both early- and late-stage murine tumor models...
April 26, 2024: Cell
#30
JOURNAL ARTICLE
Xiangyu Ma, Qiong Zhang, Jiale Li, Lidi Zhang, Guang Li, Zhongjie Zhang, Haizhu Yu, Manzhou Zhu
The atomic precision of the subnanometer nanoclusters has provided sound proof on the structural correlation of metal complexes and larger-sized metal nanoparticles. Herein, we report the synthesis, crystallography, structural characterization, electrochemistry, and optical properties of a 133-atom intermetallic nanocluster protected by 57 thiolates (3-methylbenzenethiol, abbreviated as m -MBTH) and 3 chlorides, with the formula of Ag125 Cu8 ( m -MBT)57 Cl3 . This is the largest Ag-Cu bimetallic cluster ever reported...
May 2, 2024: Inorganic Chemistry
#31
JOURNAL ARTICLE
Sujeet Singh, Hemant Arya, Welka Sahu, K Sony Reddy, Surendra Nimesh, Bader Saud Alotaibi, Mohammed Ageeli Hakami, Hassan H Almasoudi, Khater Balatone Gezira Hessien, Mohammad Raghibul Hasan, Summya Rashid, Tarun Kumar Bhatt
Malaria is a mosquito-borne infectious disease that is caused by the Plasmodium parasite. Most of the available medication are losing their efficacy. Therefore, it is crucial to create fresh leads to combat malaria. Green silver nanoparticles (AgNPs) have recently attracted a lot of attention in biomedical research. As a result, green mediated AgNPs from leaves of Terminalia bellirica , a medicinal plant with purported antimalarial effects, were used in this investigation. Initially, cysteine-rich proteins from Plasmodium species were studied in silico as potential therapeutic targets...
December 2024: Artificial Cells, Nanomedicine, and Biotechnology
#32
JOURNAL ARTICLE
Jayaraman Narenkumar, Ajitha Kannabiran, Shenbhagaraman Ramalingam, Punniyakotti Parthipan, Bhaskar Das, Mohamad S AlSalhi, Sandhanasamy Devanesan, Seralathan Kamala-Kannan, Sundaram Thanigaivel, Aruliah Rajasekar
Plant extracts are a great alternative to synthesizing nanoparticles of different metals and metal oxides. This green synthesis method has opened up numerous possibilities in various scientific domains. In present study, Leaf extract from Vitex negundo is a non-deciduous, long-lasting shrub from the Verbenaceae family is used as capping and reducing agents for the synthesis of silver and palladium nanoparticles. The characterization study UV-vis spectrophotometer analysis showed absorbance value around 320 nm which confirming that Ag-Pd nanoparticles have been successfully obtained...
May 2, 2024: Environmental Geochemistry and Health
#33
JOURNAL ARTICLE
Sanjana Tewari, Shalini Sahani, Neetu Yaduvanshi, Ritu Painuli, Nalini Sankararamakrishnan, Jaya Dwivedi, Swapnil Sharma, Sung Soo Han
The present research aimed at green synthesis of Ag nanoparticles (AgNPs) based colorimetric sensor using persimmon leaf extract (PLE) for selective detection of mercuric ion (Hg2+ ). Optimization of reaction conditions viz. pH, concentration of PLE, time was done and further AgNPs were characterized using UV, IR, FE-SEM, EDX, XRD and TEM analysis. The developed AgNPs were evaluated for the selective colorimetric detection of Hg2+ in aqueous medium and fluorescence imaging of Hg2+ ions in liver cell lines. Later, the antibacterial activity of AgNPs was performed against S...
May 2, 2024: Discov Nano
#34
JOURNAL ARTICLE
Davide Redolfi-Bristol, Kenta Yamamoto, Elia Marin, Wenliang Zhu, Osam Mazda, Pietro Riello, Giuseppe Pezzotti
Silver nanoparticles (AgNPs) hold great promise for several different applications, from colorimetric sensors to antimicrobial agents. Despite their widespread incorporation in consumer products, limited understanding of the detrimental effects and cellular antioxidant responses associated with AgNPs at sublethal concentrations persists, raising concerns for human and ecological well-being. To address this gap, we synthesized AgNPs of varying sizes and evaluated their cytotoxicity against human dermal fibroblasts (HDF)...
May 2, 2024: Nanoscale
#35
JOURNAL ARTICLE
Viet Van Pham, Thang Quoc Nguyen, Hai Viet Le, Thi Minh Cao
The treatment or conversion of air pollutants with a low generation of secondary toxic substances has become a hot topic in indoor air pollution abatement. Herein, we used triangle-shaped Ag nanoparticles coupled with SnO2 for efficient photocatalytic NO removal. Ag triangular nanoparticles (TNPs) were synthesized by the photoreduction method and SnO2 was coupled by a simple chemical impregnation process. The photocatalytic NO removal activity results show that the modification with Ag TNPs significantly boosted the removal performance up to 3...
April 30, 2024: Nanoscale advances
#36
JOURNAL ARTICLE
Jifeng Cui, Haseena, Umer Farooq, Ahmed Jan, Muzamil Hussain
Scientists have studied fluid flow over a stretching sheet to explore its potential applications in industries. This study investigates the exponential stretching flow of a bioconvective magnetohydrodynamic (MHD) hybrid nanofluid in porous medium taking into consideration thermal radiations, heat generation, chemical reaction, porosity, and dissipation. Moreover, microorganisms are present in the fluid, so the fluid is more stable, which is crucial in biotechnology, biomicrosystems, and bio-nano coolant systems...
May 15, 2024: Heliyon
#37
REVIEW
Shradha Devi Dwivedi, Anita Bhoi, Madhulika Pradhan, Keshav Kant Sahu, Deependra Singh, Manju Rawat Singh
Rheumatoid Arthritis (RA) is a chronic autoimmune systemic inflammatory disease that affects the joints and other vital organs and diminishes the quality of life. The current developments and innovative treatment options have significantly slowed disease progression and improved their quality of life. Medicaments can be delivered to the inflamed synovium via nanoparticle systems, minimizing systemic and undesirable side effects. Numerous nanoparticles such as polymeric, liposomal, and metallic nanoparticles reported are impending as a good carrier with therapeutic properties...
May 2024: 3 Biotech
#38
JOURNAL ARTICLE
Sanhueza Claudia, Mónica Pavéz, Jeyson Hermosilla, Sebastián Rocha, Iván Valdivia-Gandur, María-Cristina Manzanares, Víctor Beltrán, Francisca Acevedo
Dental implant success is threatened by peri-implantitis, an inflammation leading to implant failure. Conventional treatments struggle with the intricate microbial and host factors involved. Antibacterial membranes, acting as barriers and delivering antimicrobials, may offer a promising solution. Thus, this study highlights the potential of developing antibacterial membranes of poly-3-hydroxybutyrate and silver nanoparticles (Ag Nps) to address peri-implantitis challenges, discussing design and efficacy against potential pathogens...
April 29, 2024: International Journal of Biological Macromolecules
#39
JOURNAL ARTICLE
Kaden M Thomas, Nadja Spitzer
Silver nanoparticles (AgNPs) are increasingly incorporated in diverse products to confer antimicrobial properties. They are released into the environment during manufacture, after disposal, and from the products during use. Because AgNPs bioaccumulate in brain, it is important to understand how they interact with neural cell physiology. We found that the focal adhesion (FA)-associated protein cadherin aggregated in a dose-dependent response to AgNP exposure in differentiating cultured B35 neuroblastoma cells...
April 29, 2024: Toxicology in Vitro: An International Journal Published in Association with BIBRA
#40
JOURNAL ARTICLE
Nadezhda V Saranchina, Olga A Bazhenova, Sofia K Bragina, Viktor O Semin, Nataliya A Gavrilenko, Tatyana N Volgina, Mikhail A Gavrilenko
Silver nanoparticles were synthesized inside the small plates of transparent polymer medium by reduction of silver cations. The difference in morphology and sizes of nanoparticles synthesized by chemical, photochemical and thermal reduction was revealed, which depends both on the component ratio of the mixture and on the reduction time for the specific component ratio The polymethacrylate matrix itself acts as the stabilizing agent. A colorimetric sensor based on polymethacrylate matrix and silver nanoparticles was developed for the detection of hydrogen peroxide...
April 27, 2024: Talanta
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