scholarly journals Molybdenum Disulfide Quantum Dots: Properties, Synthesis, and Applications

2021 ◽  
Vol 7 (2) ◽  
pp. 45
Author(s):  
Jeff Kabel ◽  
Sambhawana Sharma ◽  
Amit Acharya ◽  
Dongyan Zhang ◽  
Yoke Khin Yap
Keyword(s):  
Quantum Dots ◽  
Molybdenum Disulfide ◽  
Van Der Waals ◽  
Biological Properties ◽  
The Novel ◽  
Edge States ◽  
Chemical Functionalization ◽  
Synthesis Techniques ◽  
Electronic Chemical ◽  
Significant Attention

Molybdenum disulfide quantum dots (MoS2 QDs) are a unique class of zero-dimensional (0D) van der Waals nanostructures. MoS2 QDs have attracted significant attention due to their unique optical, electronic, chemical, and biological properties due to the presence of edge states of these van der Waals QDs for various chemical functionalization. Their novel properties have enabled applications in many fields, including advanced electronics, electrocatalysis, and biomedicine. In this review, the various synthesis techniques, the novel properties, and the wide applications of MoS2 quantum dots are discussed in detail.

Molybdenum disulfide quantum dots: synthesis and applications

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65670-65682 ◽  
Author(s):  
N. Sabari Arul ◽  
V. D. Nithya
Keyword(s):  
Quantum Dots ◽  
Molybdenum Disulfide ◽  
Special Focus ◽  
Current Development ◽  
Synthesis Techniques

This review presents the current development of MoS2QDs with a special focus on their synthesis techniques, properties and their potential in various applications.

Chitosan in Biomedical Engineering: A Critical Review

2019 ◽  
Vol 14 (2) ◽  
pp. 93-116 ◽  
Author(s):  
Shabnam Mohebbi ◽  
Mojtaba Nasiri Nezhad ◽  
Payam Zarrintaj ◽  
Seyed Hassan Jafari ◽  
Saman Seyed Gholizadeh ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Biomedical Engineering ◽  
Biological Properties ◽  
Advanced Materials ◽  
Comprehensive Overview ◽  
Chemical Structures ◽  
Bio Imaging ◽  
Significant Attention ◽  
Unique Chemical

Biomedical engineering seeks to enhance the quality of life by developing advanced materials and technologies. Chitosan-based biomaterials have attracted significant attention because of having unique chemical structures with desired biocompatibility and biodegradability, which play different roles in membranes, sponges and scaffolds, along with promising biological properties such as biocompatibility, biodegradability and non-toxicity. Therefore, chitosan derivatives have been widely used in a vast variety of uses, chiefly pharmaceuticals and biomedical engineering. It is attempted here to draw a comprehensive overview of chitosan emerging applications in medicine, tissue engineering, drug delivery, gene therapy, cancer therapy, ophthalmology, dentistry, bio-imaging, bio-sensing and diagnosis. The use of Stem Cells (SCs) has given an interesting feature to the use of chitosan so that regenerative medicine and therapeutic methods have benefited from chitosan-based platforms. Plenty of the most recent discussions with stimulating ideas in this field are covered that could hopefully serve as hints for more developed works in biomedical engineering.

Electrodeposition immobilized molybdenum disulfide quantum dots and their electrochemiluminescence application in the detection of melamine residues in milk powder

2021 ◽  
Author(s):  
Yousheng Ye ◽  
Shasha Li ◽  
An Ping ◽  
Xinjun Wan ◽  
Jianguo Li
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Molybdenum Disulfide ◽  
Solid Phase ◽  
Milk Powder ◽  
One Step

In this paper, one-step hydrothermal and electrodeposition methods were used to prepare a MoS2 quantum dot (QD) solid-phase electrochemiluminescent (ECL) electrode for the detection of melamine residues in milk powder.

Fluxoid quantization in quantum dots with Landau level edge states

1995 ◽  
Vol 10 (10) ◽  
pp. 1315-1322 ◽  
Author(s):  
A Kristensen ◽  
C J Kennedy ◽  
P E Lindelof ◽  
M Persson
Keyword(s):  
Quantum Dots ◽  
Landau Level ◽  
Edge States ◽  
Fluxoid Quantization

Hybrid nanostructured C-dot decorated Fe3O4electrode materials for superior electrochemical energy storage performance

2015 ◽  
Vol 44 (19) ◽  
pp. 9221-9229 ◽  
Author(s):  
K. Bhattacharya ◽  
P. Deb
Keyword(s):  
Quantum Dots ◽  
Energy Storage ◽  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Carbon Quantum Dots ◽  
Electrochemical Energy Storage ◽  
The Novel ◽  
Hybrid Nanocomposite ◽  
Storage Performance ◽  
Electrochemical Energy

Here, the novel Fe3O4-C hybrid nanocomposite demonstrates high specific capacitance (S.C.) than the pristine Fe3O4nanospheres due to the presence of the highly conducting carbon quantum dots.

Graphene Quantum Dots Assisted Exfoliation of Atomically-thin 2D Materials and As-formed 0D/2D van der Waals Heterojunction for HER

Carbon ◽  
2021 ◽  
Author(s):  
Jun Gong ◽  
Zheye Zhang ◽  
Zhiping Zeng ◽  
Wenjun Wang ◽  
Lingxuan Kong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
2D Materials ◽  
Van Der Waals ◽  
Graphene Quantum Dots

MPA-capped CdTe quantum dots exposure causes neurotoxic effects in nematode Caenorhabditis elegans by affecting the transporters and receptors of glutamate, serotonin and dopamine at the genetic level, or by increasing ROS, or both

Nanoscale ◽  
2015 ◽  
Vol 7 (48) ◽  
pp. 20460-20473 ◽  
Author(s):  
Tianshu Wu ◽  
Keyu He ◽  
Qinglin Zhan ◽  
Shengjun Ang ◽  
Jiali Ying ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Caenorhabditis Elegans ◽  
Biomedical Applications ◽  
Biological Properties ◽  
Cdte Quantum Dots ◽  
Nematode Caenorhabditis Elegans ◽  
Neurotoxic Effects ◽  
Genetic Level

As quantum dots (QDs) are widely used in biomedical applications, the number of studies focusing on their biological properties is increasing.

Tunable Fabrication of Molybdenum Disulfide Quantum Dots for Intracellular MicroRNA Detection and Multiphoton Bioimaging

Small ◽  
2015 ◽  
Vol 11 (33) ◽  
pp. 4158-4164 ◽  
Author(s):  
Wenhao Dai ◽  
Haifeng Dong ◽  
Bunshi Fugetsu ◽  
Yu Cao ◽  
Huiting Lu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molybdenum Disulfide ◽  
Microrna Detection

Ultrafast Carrier Dynamics, Optical Amplification, and Lasing in Nanocrystal Quantum Dots

MRS Bulletin ◽  
2001 ◽  
Vol 26 (12) ◽  
pp. 998-1004 ◽  
Author(s):  
Victor I. Klimov ◽  
Moungi G. Bawendi
Keyword(s):  
Quantum Dots ◽  
Quantum Wells ◽  
Quantum Wires ◽  
Electronic States ◽  
Three Dimensions ◽  
Band Edge ◽  
Lasing Threshold ◽  
Wide Energy Range ◽  
Band Edge Emission ◽  
Edge States

Semiconductor materials are widely used in both optically and electrically pumped lasers. The use of semiconductor quantum wells (QWs) as optical-gain media has resulted in important advances in laser technology. QWs have a two-dimensional, step-like density of electronic states that is nonzero at the band edge, enabling a higher concentration of carriers to contribute to the band-edge emission and leading to a reduced lasing threshold, improved temperature stability, and a narrower emission line. A further enhancement in the density of the band-edge states and an associated reduction in the lasing threshold are in principle possible using quantum wires and quantum dots (QDs), in which the confinement is in two and three dimensions, respectively. In very small dots, the spacing of the electronic states is much greater than the available thermal energy (strong confinement), inhibiting thermal depopulation of the lowest electronic states. This effect should result in a lasing threshold that is temperatureinsensitive at an excitation level of only 1 electron-hole (e-h) pair per dot on average. Additionally, QDs in the strongconfinement regime have an emission wavelength that is a pronounced function of size, adding the advantage of continuous spectral tunability over a wide energy range simply by changing the size of the dots.

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