Multiple spectroscopies of carbon dots synthesized by laser ablation in biocompatible liquids

IF 5 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-09-27 DOI:10.1016/j.optlastec.2025.113986

L. Torrisi , B. Fazio , A. Serra , D. Manno , A. Torrisi , M. Cutroneo

{"title":"Multiple spectroscopies of carbon dots synthesized by laser ablation in biocompatible liquids","authors":"L. Torrisi , B. Fazio , A. Serra , D. Manno , A. Torrisi , M. Cutroneo","doi":"10.1016/j.optlastec.2025.113986","DOIUrl":null,"url":null,"abstract":"<div><div>Carbon dots (CDs) are quantum particles of carbon-based nanomaterials with a size lower than 10 nm. They can be synthesized by the laser ablation of different types of carbon targets placed in liquids.</div><div>They have particular properties, such as high penetration of biological membranes, high luminescence induced by UV excitation, and high biocompatibility, which confer special interest for bioimaging, diagnosis, photodynamic therapy, photocatalysis, solar cells, and other interesting applications.</div><div>The technique for preparing CDs dispersion using an ns pulsed Nd:YAG laser operating at the fundamental frequency is presented and described in detail.</div><div>Four different green targets producing high-luminescent CD dispersions were investigated: graphite, vegetal carbon (charcoal), bay leaves, and Saccharina latissima algae.</div><div>The CD dispersions in phosphate-buffered saline (PBS) biocompatible solution, with a neutral pH, have been investigated using various optical spectroscopic techniques, including luminescence detection, UV–visible absorbance and transmittance measurements, Raman spectroscopy, Fourier transform infrared spectroscopy, and others.</div><div>TEM investigations were also presented to provide information about the carbon nucleus size and shape, as well as the types of molecules that can be bonded to functionalize the synthesized CDs.</div><div>Some biological and medical applications and potential future developments of the CD-based devices will be presented and discussed.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113986"},"PeriodicalIF":5.0000,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Laser Technology","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030399225015774","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

Abstract

Carbon dots (CDs) are quantum particles of carbon-based nanomaterials with a size lower than 10 nm. They can be synthesized by the laser ablation of different types of carbon targets placed in liquids.

They have particular properties, such as high penetration of biological membranes, high luminescence induced by UV excitation, and high biocompatibility, which confer special interest for bioimaging, diagnosis, photodynamic therapy, photocatalysis, solar cells, and other interesting applications.

The technique for preparing CDs dispersion using an ns pulsed Nd:YAG laser operating at the fundamental frequency is presented and described in detail.

Four different green targets producing high-luminescent CD dispersions were investigated: graphite, vegetal carbon (charcoal), bay leaves, and Saccharina latissima algae.

The CD dispersions in phosphate-buffered saline (PBS) biocompatible solution, with a neutral pH, have been investigated using various optical spectroscopic techniques, including luminescence detection, UV–visible absorbance and transmittance measurements, Raman spectroscopy, Fourier transform infrared spectroscopy, and others.

TEM investigations were also presented to provide information about the carbon nucleus size and shape, as well as the types of molecules that can be bonded to functionalize the synthesized CDs.

Some biological and medical applications and potential future developments of the CD-based devices will be presented and discussed.

查看原文本刊更多论文

生物相容性液体中激光烧蚀合成碳点的多光谱研究

碳点（cd）是碳基纳米材料中尺寸小于10nm的量子粒子。它们可以通过激光烧蚀放置在液体中的不同类型的碳靶来合成。它们具有特殊的性质，如生物膜的高穿透性，紫外线激发引起的高发光，以及高生物相容性，这赋予了生物成像，诊断，光动力治疗，光催化，太阳能电池和其他有趣的应用的特殊兴趣。介绍了利用工作在基频下的ns脉冲Nd:YAG激光器制备CDs色散的技术。研究了四种不同的绿色靶材：石墨、植物碳（木炭）、月桂叶和糖藻。利用各种光谱学技术，包括发光检测、紫外-可见吸光度和透射率测量、拉曼光谱、傅立叶变换红外光谱等，研究了pH为中性的磷酸盐缓冲盐水（PBS）生物相容性溶液中的CD分散体。透射电镜研究也提供了有关碳核大小和形状的信息，以及可以键合的分子类型来功能化合成的CDs。介绍和讨论了基于cd的设备的一些生物和医学应用以及潜在的未来发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems