Thermal Reverse-Engineered Synthesis and Catalytic Activity of Nanogold-Containing Silica Aerogels DOI Creative Commons

Hanna Judit Csupász-Szabó,

Boglárka Döncző, Máté Szarka

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(2), P. 87 - 87

Published: Jan. 23, 2025

Silica aerogels are extensively used as catalyst supports due to their mesoporous structure and chemical inertness. In this study, SiO2–AuNP containing gold nanoparticles (AuNPs) were synthesized using the sol-gel method followed by supercritical CO2 drying. The inclusion of polyvinyl pyrrolidone (PVP) a stabilizing agent preserved particle sizes during gelation process. contrast, without PVP contained enlarged AuNP aggregates, resulting in shift plasmon resonance color from red bluish or blue–grey. Thermal treatment these bluish-colored at high temperatures restored coloration, visually indicating breakdown large clusters into individual nanoparticles. Both types characterized SEM, TEM, 3D optical microscopy, UV–vis ATR-IR spectroscopy, N2 porosimetry, with properties analyzed function annealing temperature. Their catalytic activity was evaluated through reduction 4-nitrophenol sodium borohydride, both aerogel demonstrated activity. This thermal conversion within an matrix introduces new promising approach for creating catalytically active nanogold-containing catalysts.

Language: Английский

Gold nanoparticles and gold nanorods in the landscape of cancer therapy DOI Creative Commons
Prashant Kesharwani,

Ruiyang Ma,

Liang Sang

et al.

Molecular Cancer, Journal Year: 2023, Volume and Issue: 22(1)

Published: June 21, 2023

Abstract Cancer is a grievous disease whose treatment requires more efficient, non-invasive therapy, associated with minimal side effects. Gold nanoparticles possessing greatly impressive optical properties have been forerunner in bioengineered cancer therapy. This theranostic system has gained immense popularity and finds its application the field of molecular detection, biological imaging, cell targeting, etc. The photothermal property nanoparticles, especially gold nanorods, causes absorption light incident by source, transforms it into heat, resulting tumor destruction. review describes different features summarizes advance research done for precisely nanorods combating various cancers including breast, lung, colon, oral, prostate, pancreatic cancer.

Language: Английский

Citations

164

Plasmonic silver and gold nanoparticles: shape- and structure-modulated plasmonic functionality for point-of-caring sensing, bio-imaging and medical therapy DOI
Yingjie Hang, Anyang Wang, Nianqiang Wu

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(6), P. 2932 - 2971

Published: Jan. 1, 2024

Silver and gold nanoparticles have found extensive biomedical applications due to their strong localized surface plasmon resonance (LSPR) intriguing plasmonic properties. This review article focuses on the correlation among particle geometry, properties applications. It discusses how shape size are tailored

Language: Английский

Citations

116

Gold nanoparticles-based photothermal therapy for breast cancer DOI Open Access
Mohammed Ali Dheyab, Azlan Abdul Aziz, Pegah Moradi Khaniabadi

et al.

Photodiagnosis and Photodynamic Therapy, Journal Year: 2023, Volume and Issue: 42, P. 103312 - 103312

Published: Jan. 30, 2023

Language: Английский

Citations

81

Polysaccharide-based hydrogel with photothermal effect for accelerating wound healing DOI
Bing-De Zheng,

Meitian Xiao

Carbohydrate Polymers, Journal Year: 2022, Volume and Issue: 299, P. 120228 - 120228

Published: Oct. 14, 2022

Language: Английский

Citations

78

Nanomaterials-based advanced systems for photothermal / photodynamic therapy of oral cancer DOI
Yue Wang, Lili Chang, Hongyu Gao

et al.

European Journal of Medicinal Chemistry, Journal Year: 2024, Volume and Issue: 272, P. 116508 - 116508

Published: May 15, 2024

Language: Английский

Citations

20

Advanced applications of smart electrospun nanofibers in cancer therapy: With insight into material capabilities and electrospinning parameters DOI Creative Commons

Vahid Tayebi-Khorrami,

Pouria Rahmanian‐Devin, Mohammad Reza Fadaei

et al.

International Journal of Pharmaceutics X, Journal Year: 2024, Volume and Issue: 8, P. 100265 - 100265

Published: June 26, 2024

Cancer remains a major global health challenge, and despite available treatments, its prognosis poor. Recently, researchers have turned their attention to intelligent nanofibers for cancer drug delivery. These exhibit remarkable capabilities in targeted controlled release. Their inherent characteristics, such as high surface area-to-volume ratio, make them attractive candidates delivery applications. Smart can release drugs response specific stimuli, including pH, temperature, magnetic fields, light. This unique feature not only reduces side effects but also enhances the overall efficiency of systems. Electrospinning, widely used method, allows precision fabrication smart nanofibers. Its advantages include efficiency, user-friendliness, ability control various manufacturing parameters. In this review, we explore latest developments producing electrospun treatment. Additionally, discuss materials these critical parameters involved electrospinning process.

Language: Английский

Citations

18

Photothermal Material‐Based Solar‐Driven Cogeneration of Water and Electricity: An Efficient and Promising Technology DOI Open Access

Xiaoqing Bao,

Haopeng Luo,

Tingyi Weng

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract With the increasing demand for fresh‐water and electricity in modern society, various technologies are being explored to obtain electricity. Due advances materials science, solar‐driven interfacial evaporation (SDIE) systems have attracted widespread attention because they require only solar energy, possess a high rate little pollution. The researchers combined energy harvesting measures into system output electricity, further improving utilization. However, more in‐depth research review remain on using SDIE efficient water‐electricity cogeneration. Therefore, mechanisms of different photothermal that utilize produce thermal first summarized this paper. Subsequently, mechanism application thermal, mechanical, chemical, electrical power cogeneration discussed. Concurrently, vital mathematical equations widely used simulation methods performance evaluation practical applications presented. design operation based analyzed summarized. Based understanding these aspects, future development direction is proposed address problems faced basic applications.

Language: Английский

Citations

3

Advances in screening hyperthermic nanomedicines in 3D tumor models DOI Creative Commons
Joana F. Soeiro, Filipa L. Sousa, Maria V. Monteiro

et al.

Nanoscale Horizons, Journal Year: 2024, Volume and Issue: 9(3), P. 334 - 364

Published: Jan. 1, 2024

Integrating the advances of emerging hyperthermia techniques with 3D tumor models and non-invasive temperature control systems can contribute to identifying top-performing hyperthermic nanomedicines in preclinical evaluation stages.

Language: Английский

Citations

13

Targeting feedback activation of signaling transduction pathways to overcome drug resistance in cancer DOI
Xuejian Wang, Wenyan Jiang, Yanmei Du

et al.

Drug Resistance Updates, Journal Year: 2022, Volume and Issue: 65, P. 100884 - 100884

Published: Oct. 13, 2022

Language: Английский

Citations

31

Structurally Engineered Silica Shells on Gold Nanorods for Biomedical Applications DOI Creative Commons
Min Jeong Kim,

Do Hyeon Jung,

Chae Yeon Lee

et al.

Small Structures, Journal Year: 2023, Volume and Issue: 4(9)

Published: April 14, 2023

Owing to their unique optical and chemical properties, gold nanorods (AuNRs) are among the most frequently used nanomaterials for biomedical applications, including cancer therapy, imaging, drug delivery. In particular, longitudinal dipole plasmon wavelength of AuNRs can be verified from visible near‐infrared (NIR) region, allowing as photodynamic/photothermal imaging contrast agents. At same time, silica shell is important it enhances stability facilitates functionalization biocompatibility AuNRs, offering numerous advantages in applications. this review, silica‐coated a bioapplication perspective focused. First, importance applications explained purpose coating on discussed. Then, recent studies development reviewed. Subsequently, various strategies engineering coatings properties field This review expected promote further research next‐generation

Language: Английский

Citations

19