A versatile platform for the highly efficient preparation of graphene quantum dots: photoluminescence emission and hydrophilicity-hydrophobicity regulation and organelle imaging

Nanoscale
Xiaolong WuHengwei Lin

Abstract

In this work, a versatile platform for the highly efficient preparation of graphene quantum dots (GQDs) with diverse properties was developed. First of all, an excess amount of oxidants and an additional high temperature step of the Hummers' method for the synthesis of graphene oxide (GO) was applied to obtain nanosized graphene oxide (NGO). Then, high quality GQDs (quantum yields up to 18.2%) with different photoluminescence emission wavelengths, adjustable hydrophilicity-hydrophobicity, and selective cell organelle imaging capacity can be facilely achieved through a one-pot hydrothermal reaction between the NGO and ammonia, fatty primary amines, or amino-substituted organelle targetable compounds, respectively. The superior features of the as-developed method are extremely high conversion ratio (ca. 60 wt% from graphite to the functional GQDs) and great expandability. Such a high conversion ratio is deemed to be due to effectively decreasing aggregation of the NGO (in comparison with GO) during the post-treatment process. This work provides a robust strategy for the highly efficient preparation of GQDs with diverse properties and functions, and is believed to be beneficial for boosting their applications in the future.

References

Apr 10, 2010·Journal of the American Chemical Society·Xin YanLiang-Shi Li
Dec 22, 2010·Chemical Communications : Chem Comm·Jianhua ShenChunzhong Li
Sep 8, 2011·Journal of the American Chemical Society·Ruili LiuKlaus Müllen
Mar 14, 2012·Chemical Communications : Chem Comm·Jianhua ShenChunzhong Li
May 29, 2012·Nature Nanotechnology·Dong Ick SonWon Kook Choi
Jun 28, 2012·Chemical Communications : Chem Comm·Shuai ChenJian-Hua Wang
Jul 27, 2012·Advanced Materials·Hiroyuki TetsukaAtsuto Okamoto
May 16, 2013·Physical Chemistry Chemical Physics : PCCP·Yiqing SunGaoquan Shi
Oct 8, 2013·Physical Chemistry Chemical Physics : PCCP·Xiaoyong ZhangYen Wei
Dec 7, 2013·Nature Communications·Ruquan YeJames M Tour
Aug 12, 2014·Nature Communications·Jiechao GeXiaodong Han
Jan 9, 2015·Chemical Communications : Chem Comm·Xiaoyun TanShihe Yang
Jan 5, 2016·Nature Nanotechnology·Abdel El FatimyPaola Barbara
Apr 5, 2016·Advanced Materials·Hiroyuki TetsukaTakayuki Matsui
May 7, 2016·Advanced Materials·Hyewon YoonSeokwoo Jeon
Jun 28, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Jiangsheng XuShuizhu Wu
Jul 7, 2017·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Keheng LiGang Wei
Aug 28, 2017·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Daniela IannazzoAlessandro Pistone

❮ Previous
Next ❯

Citations

Aug 6, 2019·Advanced Science·Qingsong MeiZhongping Zhang
Jul 3, 2019·Advances in Colloid and Interface Science·Bin Bin ChenCheng Zhi Huang
May 8, 2021·Frontiers in Chemistry·Yanfeng LiuJunle Qu
Jun 2, 2020·ACS Omega·Binesh UnnikrishnanHuan-Tsung Chang
Jul 19, 2018·ACS Applied Materials & Interfaces·Mauricio A Melo, Frank E Osterloh
Oct 4, 2021·Comprehensive Reviews in Food Science and Food Safety·Arumugam Selva SharmaQuansheng Chen

❮ Previous
Next ❯

Methods Mentioned

BETA
AFM
Fluorescence

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.