AI Article Synopsis
Article Abstract
Near-infrared (NIR) laser annealing is used to write conductive patterns on the surface of polypropylene/multi-walled carbon nanotube nanocomposite (PP/MWCNT) plates. Before irradiation, the surface of the nanocomposite is not conductive due to the partial alignment of the MWCNT, which occurs during injection molding. We observe a significant decrease in the surface sheet resistance using NIR laser irradiation, which we explain by a randomization of the orientation of MWCNTs in the PP matrix melt by NIR laser irradiation. After only 5 s of irradiation, the sheet resistance of PP/MWCNTs, annealed with a laser at a power density of 7 W/cm, decreases by more than 4 decades from ∼100 MΩ/sq to ∼1 kΩ/sq. Polarized Raman, TEM, and SEM are used to investigate the changes in the sheet resistance and confirm the physico-chemical processes involved. This allows direct writing of conductive patterns using a NIR laser on the surface of nanocomposite polymer substrates, with the advantages of a fast, easy, and low-energy consumption process.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.1c12757 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Spiro-Based NIR-II Photosensitizer with Efficient ROS Generation and Thermal Conversion Performances for Imaging-Guided Tumor Theranostics.
Adv Healthc Mater
January 2025
Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing, 210023, China.
Organic photosensitizers (PSs) possessing NIR-II emission and photodynamic/photothermal effect have received a great sense of attention for their cutting-edge applications in imaging-guided multimodal phototherapy. However, it is highly challenging to design efficient PSs with high luminescence and phototherapy performance simultaneously. In this study, a spiro-functionalization strategy is proposed to alleviate aggregate-caused quenching of PSs and promote photodynamic therapy, and the strategy is verified via a spiro[fluorine-9,9'-xanthene]-modified NIR-II PS (named SFX-IC) with an acceptor-donor-acceptor configuration.
View Article and Find Full Text PDFA high-contrast NIR excitation probe for monitoring Cu in the endoplasmic reticulum for synergistic cuproptosis and ferroptosis anticancer therapy.
Nanoscale
January 2025
School of Chemistry and Chemical Engineering, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, and Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials of Anhui Province, Anhui University, P.R. China.
Currently, the study of cuproptosis focuses on the Cu-induced morphology changes in mitochondria (Mito), and the observation of the effect of endoplasmic reticulum (ER)-related Cu content on cuproptosis is relatively lacking. Herein, we have developed a hydroxyflavone (HF)-based NIR excited two-photon fluorescent probe, BHCO, that exhibits specific recognition of Cu with high resolution. BHCO-Cu (Cu2BC) can lead to DLAT protein aggregation, triggering cuproptosis.
View Article and Find Full Text PDFAn overview of the use of non-titanium MXenes for photothermal therapy and their combinatorial approaches for cancer treatment.
Nanoscale Adv
December 2024
Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad Palakkad Kerala 678 623 India.
Since the initial publication on the first TiCT MXene in 2011, there has been a significant increase in the number of reports on applications of MXenes in various domains. MXenes have emerged as highly promising materials for various biomedical applications, including photothermal therapy (PTT), drug delivery, diagnostic imaging, and biosensing, owing to their fascinating conductivity, mechanical strength, biocompatibility and hydrophilicity. Through surface modification, MXenes can mitigate cytotoxicity, enhance biological stability, and improve histocompatibility, thereby enabling their potential use in biomedical applications.
View Article and Find Full Text PDFVacancy engineering enhanced photothermal-catalytic properties of CoS nanozymes for mild NIR-II hyperthermia-amplified nanocatalytic cancer therapy.
J Mater Chem B
January 2025
Department of Spine Surgery, The Ninth Medical Center of PLA General Hospital, Beijing 100101, China.
While nanozymes are commonly employed in nanocatalytic therapy (NCT), the efficacy of NCT is hampered by the limited catalytic activity of nanozymes and the intricate tumor microenvironment (TME). In this work, we design a high-efficiency nanozyme with NIR-II photothermal property for the mild hyperthermia-augmented NCT. In order to endow a single-component nanomaterial the ability to simultaneously catalyze and exhibit NIR-II photothermal properties, a straightforward template method is utilized to fabricate sulfur vacancies (V)-doped CoS nanocages.
View Article and Find Full Text PDFOpto-Laser-Responsive Smart NanoGel with Mild Hyperthermia, Vascularization, and Anti-Inflammatory Potential for Boosting Hard-to-Heal Wounds in a Diabetic Mice Model.
Mol Pharm
January 2025
An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India.
It is well known that impaired wound healing associated with diabetes mellitus has led to a challenging problem as well as a global economic healthcare burden. Conventional wound care therapies like films, gauze, and bandages fail to cure diabetic wounds, thereby demanding a synergistic and promising wound care therapy. This investigation aimed to develop a novel, greener synthesis of a laser-responsive silver nanocolloid (LR-SNC) prepared using hyaluronic acid as a bioreductant.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!