Results 61 to 70 of about 15,215 (310)

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

Advanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim, Paul Wrede, Andrés Rodríguez‐Camargo, Yi Chen, Nihal Olcay Dogan, Chaim Glück, Bettina V. Lotsch, Daniel Razansky, Metin Sitti   +8 more
wiley   +1 more source

Melanin‐Like Nanomaterials for Advanced Biomedical Applications: A Versatile Platform with Extraordinary Promise

Advanced Science, 2020
Developing efficient, sustainable, and biocompatible high‐tech nanoplatforms derived from naturally existing components in living organisms is highly beneficial for diverse advanced biomedical applications.
Heng Liu, Youyuan Yang, Yu Liu, Jingjing Pan, Junqing Wang, Fengyuan Man, Weiguo Zhang, Gang Liu   +7 more
doaj   +1 more source

Photonic Nanomaterials for Wearable Health Solutions

Advanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park, Jung Woo Leem, Young L. Kim, Chi Hwan Lee   +3 more
wiley   +1 more source

Antioxidant and α-glucosidase inhibitory properties of soluble melanins from the fruits of Vitex mollis Kunth, Randia echinocarpa Sessé et Mociño and Crescentia alata Kunth

Journal of Functional Foods, 2014
Melanins have important pharmacological properties with limited applications due to their poor solubility. Soluble melanins have been reported in different organisms, but not in plants.
Esmeralda Cuevas-Juárez, Korinthia Yamileth Yuriar-Arredondo, Juan Fernando Pío-León, Julio Montes-Avila, Gabriela López-Angulo, Sylvia Páz Díaz-Camacho, Francisco Delgado-Vargas   +6 more
doaj  

Raman Characterization of Fungal DHN and DOPA Melanin Biosynthesis Pathways

Journal of Fungi, 2021
Fungal melanins represent a resource for important breakthroughs in industry and medicine, but the characterization of their composition, synthesis, and structure is not well understood.
Benjamin D. Strycker, Zehua Han, Aysan Bahari, Tuyetnhu Pham, Xiaorong Lin, Brian D. Shaw, Alexei V. Sokolov, Marlan O. Scully   +7 more
doaj   +1 more source

Materials Advances in Devices for Heart Disease Interventions

Advanced Materials, EarlyView.
This review examines the crucial role of materials in heart disease interventions, focusing on strategies for monitoring, managing, and repairing heart conditions. It discusses the material requirements for medical devices, highlighting recent innovations and their impact on cardiovascular health.
Gagan K. Jalandhra, Lauryn Srethbhakdi, James Davies, Chi Cong Nguyen, Phuoc Thien Phan, Zachary Och, Aditya Ashok, Khoon S. Lim, Hoang‐Phuong Phan, Thanh Nho Do, Nigel H. Lovell, Jelena Rnjak‐Kovacina   +11 more
wiley   +1 more source

Nanomorphology of the blue iridescent wings of a giant tropical wasp, "Megascolia procer javanensis" (Hymenoptera) [PDF]

Phys. Rev. E 78, 051902 (2008), 2007
The wings of the giant wasp "Megascolia Procer Javanensis" are opaque and iridescent. The origin of the blue-green iridescence is studied in detail, using reflection spectroscopy, scanning electron microscopy and physical modelling. It is shown that the structure responsible for the iridescence is a single homogeneous transparent chitin layer covering ...
arxiv   +1 more source

The Affinity of Melanin for Chloroquine*

Journal of Investigative Dermatology, 1965
The localization of chloroquine in areas of melanin pigmentation has recently been established. Zvaifler and his co-workers (1) found that the concentration of this drug in the eyes of pigmented rats paralleled the degree of melanin pigmentation. In addition, they noted that chloroquine persists at high levels in the iris and choroid for at least 28 ...
Sams, W M, Epstein, J H
openaire   +3 more sources

Stress Response of Aspergillus niger Spores to Copper Surfaces and the Implications for Antifungal Surface Functionalization

Advanced Materials Interfaces, EarlyView.
This study investigates the antifungal efficacy of ultrashort pulsed laser‐induced periodic surface structures (USP‐DLIP) on copper, brass, and steel surfaces. Using Aspergillus niger as a model, the research highlights a 99% reduction in spore viability on 9 µm structured copper surfaces due to enhanced copper ion release. Scanning electron microscopy
Stella Marie Timofeev, Katharina Siems, Daniel Wyn Müller, Aisha Saddiqa Ahmed, Alessa Schiele, Kristina Brix, Carolin Luisa Krämer, Franca Arndt, Ralf Kautenburger, Frank Mücklich, Stefan Leuko   +10 more
wiley   +1 more source

Geometrical benchmarking and analysis of redox potentials of copper(I/II) guanidine‐quinoline complexes: Comparison of semi‐empirical tight‐binding and DFT methods and the challenge of describing the entatic state (part III)

Journal of Computational Chemistry, Volume 44, Issue 3, Page 319-328, January 30, 2023., 2023
Geometrical Benchmarking and Analysis of Redox Potentials of Copper(I/II) Guanidine‐Quinoline Complexes: Comparison of semi‐empirical tight‐binding and DFT methods and the challenge of describing the entatic state (Part III). The geometry optimization and the calculation of the redox potential of five real‐life model complex pairs (up to 50 non ...
Lukas Raßpe‐Lange, Alexander Hoffmann, Christoph Gertig, Joshua Heck, Kai Leonhard, Sonja Herres‐Pawlis   +5 more
wiley   +1 more source