scholarly journals Aggregation-Induced Emission of Tetraphenylethene-Conjugated Phenanthrene Derivatives and Their Bio-Imaging Applications

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 728 ◽  
Author(s):  
Duy Khuong Mai ◽  
Joomin Lee ◽  
Ilgi Min ◽  
Temmy Vales ◽  
Kyong-Hoon Choi ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Imaging Agents ◽  
Active Compounds ◽  
Intracellular Imaging ◽  
Aggregation Induced Emission ◽  
Bio Imaging ◽  
Intramolecular Motions

In this study, a series of rationally designed emissive phenanthrene derivatives were synthesized and their aggregation-induced emission (AIE) properties in tetrahydrofuran (THF)/water mixtures were investigated. Two tetraphenylethene (TPE) segments were conjugated to both ends of the phenanthrene core at the para-positions and meta-positions, resulting in pTPEP and mTPEP derivatives, respectively. While the TPE-conjugated phenanthrene derivatives did not show any emission when dissolved in pure THF, they showed strong sky-blue emissions in water-THF mixtures, which is attributed to the restriction of intramolecular motions of TPE segments by aggregation. Furthermore, silica nanoparticles loaded with these AIE-active compounds were prepared and proved to be promising intracellular imaging agents.

Gold nanoparticle-enhanced near infrared fluorescent nanocomposites for targeted bio-imaging

RSC Advances ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Hao Cheng ◽  
Chuanxi Wang ◽  
Zhenzhu Xu ◽  
Huihui Lin ◽  
Chi Zhang
Keyword(s):  
Folic Acid ◽  
Cancer Cells ◽  
Gold Nanoparticle ◽  
Near Infrared ◽  
Water Solubility ◽  
Imaging Agents ◽  
Nir Fluorescence ◽  
Target Imaging ◽  
Bio Imaging ◽  
Low Toxicity

Folic acid-conjugated nanocomposites with NIR fluorescence, water-solubility, and low toxicity are prepared and used as target-imaging agents for cancer cells.

Green light emitting BSA conjugated dye supported silica nanoparticles for bio-imaging application.

2021 ◽  
Author(s):  
Sathya Ramalingam ◽  
Kalarical Janardhanan Sreeram ◽  
Raghava Rao Jonnalagadda
Keyword(s):  
Silica Nanoparticles ◽  
Targeted Delivery ◽  
Green Light ◽  
Poor Knowledge ◽  
Light Emitting ◽  
Imaging Application ◽  
Bio Imaging ◽  
Bio Compatibility

Silica nanoparticles has attracted a huge bio audience as a biosafe material for targeted delivery applications due to its ease of functionalisation, less toxicity, and bio-compatibility. However, poor knowledge of...

Multi-stable fluorescent silica nanoparticles obtained from in situ doping with aggregation-induced emission molecules

2015 ◽  
Vol 3 (45) ◽  
pp. 8775-8781 ◽  
Author(s):  
Yi-Feng Wang ◽  
Jing Che ◽  
Yong-Chao Zheng ◽  
Yuan-Yuan Zhao ◽  
Fei Chen ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Gastric Fluid ◽  
Silica Matrix ◽  
Simulated Gastric Fluid ◽  
Aggregation Induced Emission ◽  
Fluorescent Silica Nanoparticles ◽  
Photo Stability

Rigid structures provided by silica matrix restrict the intramolecular rotations of AIE molecules, and fluorescence of CWQ-11@SiO2 nanoparticles maintains excellent pH-, viscosity- and photo-stability, especially stable in simulated gastric fluid.

scholarly journals Versatile multicolor nanodiamond probes for intracellular imaging and targeted labeling

2018 ◽  
Vol 6 (19) ◽  
pp. 3078-3084 ◽  
Author(s):  
Kerem Bray ◽  
Leonard Cheung ◽  
Khondker Rufaka Hossain ◽  
Igor Aharonovich ◽  
Stella M. Valenzuela ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Color Centers ◽  
Intracellular Imaging ◽  
Bio Imaging

We report on the first demonstration of FNDs containing either silicon or nitrogen vacancy color centers for multi-color bio-imaging.

scholarly journals Mechanistic connotations of restriction of intramolecular motions (RIM)

2020 ◽  
Author(s):  
Yujie Tu ◽  
Zheng Zhao ◽  
Jacky W Y Lam ◽  
Ben Zhong Tang
Keyword(s):  
Mechanistic Models ◽  
Aggregation Induced Emission ◽  
Intramolecular Motion ◽  
Intramolecular Motions

Restriction of intramolecular motion (RIM) is the widely-accpeted mechanism of aggregation-induced emission (AIE). In this concise and comprehensive perspective, four mechanistic models related to different nonradiative pathways are summarized with examples to disclose the connotation of RIM, and meaningful mechanistic topics for future researches are advised.

Combination of aggregation-induced emission and clusterization-triggered emission in mesoporous silica nanoparticles for the construction of an efficient artificial light-harvesting system

2020 ◽  
Vol 8 (41) ◽  
pp. 14587-14594
Author(s):  
Saisai Yan ◽  
Zhinong Gao ◽  
Hongyan Yan ◽  
Fei Niu ◽  
Zhengqin Zhang
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Light Harvesting ◽  
Mesoporous Silica Nanoparticles ◽  
Aqueous Environment ◽  
Artificial Light ◽  
Aggregation Induced Emission ◽  
Highly Efficient ◽  
System P

A highly efficient ALHS was constructed based on the non-covalent assembly of fluorescent MSNs and RB in an aqueous environment.

scholarly journals Polymersomes with aggregation-induced emission based on amphiphilic block copolypeptoids

2019 ◽  
Vol 55 (90) ◽  
pp. 13530-13533 ◽  
Author(s):  
Xinfeng Tao ◽  
Hui Chen ◽  
Sylvain Trépout ◽  
Jiayu Cen ◽  
Jun Ling ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Aggregation Induced Emission ◽  
Bio Imaging ◽  
Drug Delivery Applications

Fluorescent and biocompatible polymersomes based on the amphiphilic block copolypeptoid P(TPE-NAG)-b-PSar are promising for bio-imaging and drug delivery applications.

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