Review
Chemistry, Multidisciplinary
Norfarina Bahari, Norhashila Hashim, Khalina Abdan, Abdah Md Akim, Bernard Maringgal, Laith Al-Shdifat
Summary: The use of natural reducing and capping agents in environmentally sustainable synthesis of nanoparticles (NPs) has gained importance. Honey has emerged as a promising agent in the synthesis of metal and metal oxide NPs, serving as both a stabilizing and reducing agent. This review focuses on honey-mediated synthesis of silver NPs (Ag-NPs) and zinc oxide NPs (ZnO-NPs), highlighting its role as a reducing and capping agent, and provides a comprehensive examination of bio-based reducing and capping/stabilizing agents. The review also discusses environmentally friendly methods for NP synthesis.
Article
Chemistry, Analytical
Meng-Qi He, Yongjian Ai, Wanting Hu, Xiaomeng Jia, Lei Wu, Mingyu Ding, Qionglin Liang
Summary: By using DNA as an etching agent, it is possible to control the morphology and optical properties of plasmonic nanoparticles, while also introducing fluorescence properties. This strategy allows for precise tuning of localized surface plasmon resonance (LSPR) and fluorescence-composited dual-mode signals.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Bogumil Brycki, Adrianna Szulc, Mariia Babkova
Summary: The synthesis of AgNPs stabilized by gemini surfactants with hexadecyl substituent and variable structure of spacer was conducted via ecofriendly synthesis. UV-Vis spectroscopy and dynamic light scattering were used as analyzing tools to confirm physicochemical characterization of the AgNPs.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Applied
Tomer A. Dickstein, Ergang Zhou, Kian K. Hershberger, Angela K. Haskell, David Gene Morgan, Maren Pink, Barry D. Stein, Linda Zh. Nikoshvili, Valentina G. Matveeva, Lyudmila M. Bronstein
Summary: A one-pot solvothermal method was developed for the synthesis of magnetically recoverable catalysts with Ru or Ag nanoparticles capped by chitosan. The method allowed for the stabilization of 2.2 nm monodisperse Ru NPs with high catalytic activity, while leading to exceptionally large Ag nanocrystals. The catalyst displayed extraordinary shelf-life and reusability, making it promising for nitroarene reduction.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Munju Shin, Sejun Yang, Hyo Won Kwak, Ki Hoon Lee
Summary: Various natural materials, including silk sericin (SS), have been used for the synthesis of gold nanoparticles (AuNPs). In this study, AuNPs were successfully synthesized using SS, and optimal synthesis conditions were determined. The size of the AuNPs prepared under the optimal conditions was approximately 17 nm, and the particles were well dispersed.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Cheng-Yeh Chang, Yi-Ru Wu, Tzu-Hsien Tseng, Jun-Hao Su, Yu-Shan Wang, Fang-Yi Jen, Bo-Ru Chen, Cheng-Liang Huang, Jui-Chang Chen
Summary: This study demonstrated the use of differently shaped silver nanoparticles for the synthesis of gold nanoclusters with small capping ligands. The silver nanoparticles played dual roles in the formation of Au NCs, acting as reducing agents for gold ions and attracting capping ligands to the nanoparticle surface. The morphologies of the silver nanoparticles had an influence on the synthesis of Au NCs, with quasi-spherical AgNPs and silver nanoplates showing excellent results.
Article
Chemistry, Applied
Hector J. Guzman, Gerardo Vitale, Lante Carbognani-Ortega, Carlos E. Scott, Pedro Pereira-Almao
Summary: MoS3 nanoparticles were synthesized using starch as a capping agent, which were then converted to MoS2 nanoparticles through thermal treatment. The nanoparticles showed good catalytic activity in hydrodesulfurization and bitumen upgrading. Nanoparticles prepared with starch exhibited superior catalytic performance and potential application in slurry process for heavy crude oil upgrading.
Article
Materials Science, Multidisciplinary
Pratibha Sharma, Sujata Kumari, Debasree Ghosh, Vandana Yadav, Ankush Vij, Pooja Rawat, Shalendra Kumar, Chittaranjan Sinha, Sonia Saini, Vivek Sharma, Md Imtaiyaz Hassan, Chandra Mohan Srivastavaa, Sudip Majumder
Summary: Capping agents play a crucial role in influencing the properties of hematite nanoparticles (HNPs), with PVP showing significant improvements in grain size, antioxidative activity, and cytotoxicity against cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Jianrui Qi, Jie Zhang, Hang Jia, Xinyuan Guo, Yuan Yue, Yahong Yuan, Tianli Yue
Summary: This study successfully developed a low-cost antibacterial nanobiomaterial with strong antibacterial activity against Escherichia coli and Staphylococcus aureus, as well as good biocompatibility. In vivo assays confirmed that the nanocomposite not only promoted the healing of wound infection caused by bacteria, but also had no toxic effect on mouse organs.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biotechnology & Applied Microbiology
Mariana Guilger-Casagrande, Tais Germano-Costa, Natalia Bilesky-Jose, Tatiane Pasquoto-Stigliani, Lucas Carvalho, Leonardo F. Fraceto, Renata de Lima
Summary: The study demonstrates that the capping of biogenic silver nanoparticles plays a crucial role in controlling nanoparticle size and contributing to their biological activity against Sclerotinia sclerotiorum. Capped nanoparticles showed significant inhibitory effects on the phytopathogenic fungus, while uncapped nanoparticles were ineffective. Additionally, uncapped nanoparticles exhibited higher genotoxicity towards cell lines and major impacts on soil microbiota compared to capped nanoparticles.
JOURNAL OF NANOBIOTECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Thanh Phuong Nguyen, Phuc Bui Tan, Tran Le
Summary: ZnO nanoparticles with a hexagonal wurtzite structure were successfully synthesized using the coprecipitation method, with poly(vinyl alcohol) serving as a capping agent. The study showed that the presence of PVA as a capping agent impacts the optical and photometric characteristics of the ZnO nanoparticles. The PVA-capped ZnO nanoparticles exhibited blue, green, yellow, and red emission, with the highest luminous efficacy of optical radiation observed at 1.0 g of PVA.
Article
Nanoscience & Nanotechnology
Lutfur Rahman, Yasra Sarwar, Shazia Khaliq, Wasim Inayatullah, Wasim Abbas, Ameena Mobeen, Ata Ullah, Syed Zajif Hussain, Waheed S. Khan, Maria-Eleni Kyriazi, Irshad Hussain, Antonios G. Kanaras, Asma Rehman
Summary: In this study, surfactin-coated silver nanoparticles were synthesized and applied for the first time as an efficient antibacterial and antibiofilm agent against drug-resistant bacteria. The nanoparticles showed excellent bactericidal and antibiofilm activity against Pseudomonas aeruginosa, without causing significant dermal irritation or inflammation in vivo. Microscopic analysis also revealed no pathological alterations at the applied concentrations, supporting the potential use of these nanoparticles in combating drug-resistant bacterial biofilms and for skin wound dressings.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Applied
L. Cechova, F. Krcma, M. Kalina, O. Man, Z. Kozakova
Summary: Silver and gold nanoparticles were produced using pinhole discharge in a precursor solution, with factors like discharge time, precursor concentration, and additives affecting particle size and stability. The addition of capping agents reduced the power input needed for stable discharge, while the stability of final particles was related to particle size, with smaller particles being more stable.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Dmitry V. Vishnevetskii, Arif R. Mekhtiev, Tatyana Perevozova, Alexandra I. Ivanova, Dmitry Averkin, Svetlana D. Khizhnyak, Pavel M. Pakhomov
Summary: This article reports a method for in situ preparation of silver nanoparticles in a gel matrix using L-cysteine as a bio-reducing agent. Various physicochemical methods confirmed the formation of a gel network consisting of cysteine-stabilized silver nanoparticles and cysteine/silver complexes. The method allows for the production of different sizes of silver nanoparticles and exhibits anti-cancer activity against MCF-7 breast cancer cells without toxicity to fibroblast cells.
Article
Chemistry, Multidisciplinary
Indresh Kumar, Chinky Gangwar, Bushra Yaseen, Pradeep Kumar Pandey, Sheo K. Mishra, Radhey Mohan Naik
Summary: In this study, silver nanoparticles (SNPs) in the size range of 6-10 nm were successfully synthesized using a chemical reduction method. The formation of SNPs was studied spectrophotometrically, and a plausible mechanism for the formation of SNPs colloid was proposed based on experimental findings. SNPs showed remarkable catalytic activity for the reduction of the cationic dye methylene blue.
Article
Nanoscience & Nanotechnology
Rafael Miguel Sabio, Silvia Helena Santagneli, Marie Gressier, Jose Mauricio Almeida Caiut, Wallance Moreira Pazin, Sidney Jose Lima Ribeiro, Marie-Joelle Menu
Article
Chemistry, Multidisciplinary
Fernando Augusto de Souza Furtado, Jhon Fernando Berrio Escobar, Alejandro Martinez Martinez, Cristiano Giordani, Jose Mauricio Almeida Caiut, Luciano Caseli, Celso Molina
Article
Optics
Andre Riul, Fernando A. A. da Fonseca, Roberta S. Pugina, Jose Mauricio A. Caiut
Summary: This study proposes a smart method to produce lanthanide-doped alumina and yttrium spherical compounds by controlling the Y3+/Al3+ ratio. Increasing the Y3+/Al3+ ratio led to the formation of crystalline YAG phase in the material after thermal treatment. The presence of a secondary Eu3+ ion coordination site was confirmed in the material, but at higher Y3+/Al3+ ratio, the YAG structure predominated.
JOURNAL OF LUMINESCENCE
(2021)
Article
Materials Science, Multidisciplinary
Roberta Silva Pugina, Eloisa Garibalde Hilario, Euzane Gomes da Rocha, Manoel L. da Silva-Neto, Avishek Das, Jose Mauricio Almeida Caiut, Anderson S. L. Gomes
Summary: Nd3+:YAG crystals have been widely used in photonic devices since the 1960s due to their unique properties. This study reports the synthesis of dense Nd3+:YAG particles using spray pyrolysis, which could be scaled up for industrial production. The high Nd3+ concentration in the particles was exploited for random laser applications.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Polymer Science
Roberta S. Pugina, Douglas L. da Silva, Andre Riul, Manoel L. da Silva-Neto, Anderson S. L. Gomes, Jose Mauricio A. Caiut
Summary: This study investigated the preparation and characteristics of a new fibroin composite enhanced by YAG particles, successfully achieving controlled particle amounts and tuned transmittance behavior, providing a new approach for the development of sensors or smart inks.
Article
Multidisciplinary Sciences
Edwin D. Coronel, Manoel L. da Silva-Neto, Andre L. Moura, Ivan R. R. Gonzalez, Roberta S. Pugina, Eloisa G. Hilario, Euzane G. da Rocha, Jose Mauricio A. Caiut, Anderson S. L. Gomes, Ernesto P. Raposo
Summary: The study demonstrates the intricate interplay of photonic intermittency turbulent-like effects, dynamics evolution of modes correlations, and onset of RSB behavior in random lasers (RLs), proposing modified Pearson correlation coefficients as sensitive indicators. The findings suggest potential common underlying mechanisms among these phenomena which could be further explored in unified theoretical models.
SCIENTIFIC REPORTS
(2022)
Article
Optics
Eloisa G. Hilario, Roberta S. Pugina, Manoel L. da Silva-Neto, Lauro June Q. Maia, Jose Mauricio A. Caiut, Anderson S. L. Gomes
Summary: Efforts in finding efficient photonic materials for laser action have been on the rise since 1960, with Nd3+ gaining significant attention for its potential use in traditional and random lasers. YAl3(BO3)4 has emerged as an excellent laser host due to its physicochemical properties, and a new synthesis route has been developed for preparing micron-sized crystals based on the urea precipitation method. This study demonstrates the replacement of Y3+ by Nd3+ in the YAB host matrix, leading to stimulated emission and potential applications in superluminescent sources.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Douglas Luis Silva, Roberta Silva Pugina, Jose Mauricio Almeida Caiut
Summary: Lanthanide ion-based nonlinear optical processes have been widely used to convert infrared radiation to visible radiation for efficient photonic devices. In this study, sub-micrometric spherical NaY(MoO4)(2):Er3+ particles were prepared by spray pyrolysis, and their up-conversion emission as a function of lanthanide ion content and temperature was investigated.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
Roberta S. Pugina, Jose Mauricio A. Caiut
Summary: Developing systems to prevent counterfeiting is crucial. Luminescent markers are a good option, and this study explores the use of silk fibroin and inorganic particles doped with Yb3+/Tm3+ ions to create a biodegradable film that emits in the blue region, suitable for anti-counterfeiting, surface coatings, and ink for 3D printers.
Article
Nanoscience & Nanotechnology
Eloisa G. Hilario, Lucas C. Rodrigues, Jose Mauricio A. Caiut
Summary: In this study, the energy of f-d transitions in lanthanide ions embedded in a crystalline field was experimentally determined, along with the bandgap value of the host matrix. The experimental results closely matched the theoretical values reported in literature for both the ions and matrix.
Article
Materials Science, Multidisciplinary
Lais R. Lima, Gabriela Conte, Larissa R. Brandao, Rafael M. Sabio, Alan S. de Menezes, Flavia Aparecida Resende, Jose M. A. Caiut, Sidney J. L. Ribeiro, Caio G. Otoni, Ana C. S. Alcantara, Hernane da S. Barud
Summary: Bacterial cellulose nanocrystals are versatile and sustainable biomaterials with high performance. Films based on surface-modified nanocrystals show improved thermal stability and maintained noncytotoxicity. These films have potential in biomedical applications and contribute to the circular bioeconomy by upcycling industrial byproducts.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Euzane G. da Rocha, Roberta S. Pugina, Jose Mauricio A. Caiut
Article
Chemistry, Multidisciplinary
Rafael M. Sabio, Silvia H. Santagneli, Marie Gressier, Jose M. A. Caiut, Wallance M. Pazin, Robson R. Silva, Sidney J. L. Ribeiro, Marie-Joelle Menu
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2020)