Results 41 to 50 of about 1,430 (147)

A general perspective of the characterization and quantification of nanoparticles: Imaging, spectroscopic, and separation techniques [PDF]

, 2014
This article gives an overview of the different techniques used to identify, characterize, and quantify engineered nanoparticles (ENPs). The state-of-the-art of the field is summarized, and the different characterization techniques have been grouped ...
Anderson de la LLana, S., Anderson, I.S., Capitán Vallvey, L. F., Cecchini, R., Costa Fernández, J.M., Domínguez Meister, Santiago, Lapresta Fernández, A., Marco, María Pilar, Moreno Bondi, M.C., Salinas Castillo, A., Sánchez López, J.C.   +10 more
core   +3 more sources

Advancing Tuberculosis Chemotherapy: Targeted Nanomedicines for the Mycobacterium TB Granuloma

Small, Volume 21, Issue 49, December 10, 2025.
This graphical abstract illustrates nanosystems used for targeted drug delivery into tuberculosis granulomas. It shows how targeting is influenced by size, pH, redox sensitivity, and surface charge. Various nanoparticles are incorporated with drugs to enhance penetration, stability, and release.
Shreya Ranjith Singh, Maya Mellisa Makatini, Thashree Marimuthu, Yahya Essop Choonara   +3 more
wiley   +1 more source

Synthesis and characterization of surface-enhanced Raman-scattered gold nanoparticles [PDF]

, 2013
In this paper, we report a simple, rapid, and robust method to synthesize surface-enhanced Raman-scattered gold nanoparticles (GNPs) based on green chemistry. Vitis vinifera L. extract was used to synthesize noncytotoxic Raman-active GNPs.
Barrow, Colin J., Elchuri, Sailaja V., Harjwani, Jaidev, Kalmodia, Sushma, Krishnakumar, Subramanian, Rajeswari, Raguraman, Ramaprabhu, Sundara, Yang, Wenrong   +7 more
core   +2 more sources

Cu or Fe‐Exchanged Natural Clinoptilolite as Sustainable Light‐Assisted Catalyst for Water Disinfection at Near Neutral pH

ChemPlusChem, Volume 90, Issue 11, November 10, 2025.
Fe and Cu exchanged natural clinoptilolites are evaluated as heterogeneous photo‐Fenton catalysts for water disinfection under visible light, using E. coli as a model pathogen. Bacterial detection limit is reached in 2 h, with no regrowth observed.
Paula Prieto‐Laria, Pilar Fernández‐Ibáñez, A. Rabdel Ruiz‐Salvador, Inés Canosa, Amando Flores, Carlos Salameh, José Enrique Domínguez‐Santos, Nuria Ofelia Núñez, Menta Ballesteros, Tania Farías   +9 more
wiley   +1 more source

Nanodiamond‐Infused Microgels for pH‐Tunable Rheology, Lubrication, and UV Protection

Advanced Functional Materials, Volume 35, Issue 46, November 12, 2025.
Microgels consisting of swollen polyacrylic acid polymer networks, impregnated with nanodiamonds provide protection from ultraviolet (UV) radiation harmful to human health. Nanodiamonds enable UV blockage and control of the rheology (flow) and lubrication (skin‐feel) of these microgel‐skincare‐mimics.
Pallav K. Jani, Sarvesh A. Nadkarni, Katherine J. Ernst, Barbara V. Farias, Chloe G. Hincher, Oluwatobi A. Ojuade, Yug C. Saraswat, Prottasha Sarker, Donald O. Freytes, Lilian C. Hsiao, Saad A. Khan   +10 more
wiley   +1 more source

Light‐Harvesting Nanomaterials Based on Dyes for Energy Transfer and Amplified Biosensing

Advanced Materials, Volume 37, Issue 45, November 13, 2025.
Light harvesting (LH) in plants inspires researchers to develop artificial LH nanomaterials. Here, LH nanomaterials based on organic dyes are reviewed, considering fundamental challenges on aggregation‐caused quenching, excitation energy transfer, and exciton migration length.
Andrey S. Klymchenko, Deep Sekhar Biswas, Pascal Didier   +2 more
wiley   +1 more source

Surface Enhanced Raman Scattering of a Lysosomal Fluorescent Dye

Analysis &Sensing, Volume 5, Issue 6, November 2025.
In this article, the interactions of a lysosomal fluorescent dye with gold nanoparticles are analyzed based on surface‐enhanced Raman scattering (SERS). Their dependence on changes in pH is related to their SERS spectra and to the SERS spectra of the aromatic fragments of the dye.
Cecilia Spedalieri, Janina Kneipp
wiley   +1 more source

Strong optical force acting on a dipolar particle over a multilayer substrate

, 2015
Optical forces acting on nano-sized particles are typically too small to be useful for particle manipulation. We theoretically and numerically demonstrate a mechanism that can significantly enhance the optical force acting on a small particle through a ...
Chan, C. T., Wang, Shubo
core   +2 more sources

Toward Organic Mimics of Metallic Nanoparticles: Tuning and Enhancing Fluorescence in Binary Dye‐Based Nanoparticles

Chemistry – A European Journal, Volume 31, Issue 59, October 22, 2025.
Binary Fluorescent Organic Nanoparticles (вFONs) are made from two optically complementary polar and polarizable dyes (energy donor D and acceptor A). Core‐shell вFONs exhibit Nano Interfacial Emission Enhancement (NIEE), i.e. an enhanced fluorescence quantum yield and a blueshifted emission, compared to alloy вFONs of identical composition‐but devoid ...
Eleonore Kurek, Morgane Rosendale, Gaëlle Recher, Jean‐Baptiste Verlhac, Sébastien Marais, Jonathan Daniel, Mireille Blanchard‐Desce   +6 more
wiley   +1 more source

Continuous Flow Block Copolymer Nanoaggregate Synthesis and Their Flow Dialysis Purification

Chemistry–Methods, Volume 5, Issue 10, October 2025.
This work details the methodology for the synthesis of block copolymer nanoparticles through continuous flow self‐assembly and purification via flow dialysis. Nanoaggregates are formed by mixing block copolymer solutions in THF with water, followed by dialysis to eliminate excess solvent.
Gayathri Dev Ammini, Lakshani J. Weerarathna, Tanja Junkers   +2 more
wiley   +1 more source