Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Muthu Kumara Gnanasammandhan Jayakumar"'
Autor:
Zhen Zhang, Muthu Kumara Gnanasammandhan Jayakumar, Xiang Zheng, Swati Shikha, Yi Zhang, Akshaya Bansal, Dennis J. J. Poon, Pek Lim Chu, Eugenia L. L. Yeo, Melvin L. K. Chua, Soo Khee Chee, Yong Zhang
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
The synthesis of nanoparticles capable of orthogonal photo-activity is complex. Here, the authors report on an assembly process of two distinct nanoparticles into composite nanoparticles as a simple method and report on the application in photodynami
Externí odkaz:
https://doaj.org/article/b18f54c23a8349a6b456d95ddb2e3018
Autor:
Qingsong Mei, Akshaya Bansal, Muthu Kumara Gnanasammandhan Jayakumar, Zhiming Zhang, Jing Zhang, Hua Huang, Dejie Yu, Chrishan J. A. Ramachandra, Derek J. Hausenloy, Tuck Wah Soong, Yong Zhang
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Orthogonal light based control of biology is of interest, yet the synthesis of materials capable of this is complex. Here, the authors report on the synthesis of simpler upconversion nanoparticles which used cross-relaxation to change emission spectr
Externí odkaz:
https://doaj.org/article/2035282f5f964504b9552c31d6a914e8
Autor:
Swati Shikha, Muthu Kumara Gnanasammandhan Jayakumar, Yong Zhang, Xiang Zheng, Zhen Zhang, Yi Zhang
Publikováno v:
ACS Applied Materials & Interfaces. 12:12549-12556
Upconversion nanoparticles (UCNPs) have been used effectively as light transducers to convert near-infrared irradiation to short-wavelength emissions for photoactivation in deep tissues. UCNPs with single/multiple emissions under excitation at a sing
Autor:
Zi Wang, Muthu Kumara Gnanasammandhan Jayakumar, Xiang Zheng, Hans Ågren, Yong Zhang, Haichun Liu, Kai Huang
Publikováno v:
Nanoscale. 9:1676-1686
Lanthanide-doped upconversion nanoparticles (UCNPs) are increasingly used as luminescent candidates in multiplexing applications due to their excellent optical properties. In the past, several encoding identities have been proposed for UCNPs, includi
Autor:
Muthu Kumara Gnanasammandhan Jayakumar, Derek J. Hausenloy, Akshaya Bansal, Qingsong Mei, Zhiming Zhang, Jing Zhang, Chrishan J A Ramachandra, Dejie Yu, Yong Zhang, Tuck Wah Soong, Hua Huang
Publikováno v:
Nature Communications
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Reliance on low tissue penetrating UV or visible light limits clinical applicability of phototherapy, necessitating use of deep tissue penetrating near-infrared (NIR) to visible light transducers like upconversion nanoparticles (UCNPs). While typical
Autor:
Swati Shikha, Yong Zhang, Akshaya Bansal, Soo Khee Chee, Yi Zhang, Pek Lim Chu, Melvin L.K. Chua, Dennis J.J. Poon, Xiang Zheng, Zhen Zhang, Muthu Kumara Gnanasammandhan Jayakumar, Eugenia Li Ling Yeo
Publikováno v:
Nature Communications
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Upconversion nanoparticles (UCNPs) are the preferred choice for deep-tissue photoactivation, owing to their unique capability of converting deep tissue-penetrating near-infrared light to UV/visible light for photoactivation. Programmed photoactivatio
Autor:
Akshaya Bansal, Haichun Liu, Muthu Kumara Gnanasammandhan Jayakumar, Yong Zhang, Stefan Andersson-Engels
Publikováno v:
Small. 12:1732-1743
Optogenetics is an emerging powerful tool to investigate workings of the nervous system. However, the use of low tissue penetrating visible light limits its therapeutic potential. Employing deep penetrating near-infrared (NIR) light for optogenetics
Publikováno v:
Nanomedicine. 10:1477-1491
Lanthanide materials have been gaining popularity for use in various theranostic applications, primarily due to their unique optical properties such as narrow emission bands, multiple emission wavelengths, emission tunability, long fluorescence lifet
Publikováno v:
Journal of Materials Chemistry C. 3:10267-10272
A novel strategy for making big core and core–shell upconversion nanoparticles (UCNs) by lutetium doping has been developed. The size of the core UCNs is easily tuned in the increasing direction with enhanced luminescence by rational lutetium dopin
Autor:
Muthu Kumara Gnanasammandhan Jayakumar, Risheng Yao, Kai Huang, Akshaya Bansal, Bing Nan Li, Yong Zhang
Publikováno v:
ACS Nano. 8:4848-4858
Current nanoparticle-based gene delivery techniques face two major limitations, namely, endosomal degradation and poor cytosolic release of the nanoparticles and nonspecificity of treatment. These limitations can be overcome with certain light-based