Related Experiment Video
Updated: Feb 14, 2026

Manipulating Living Cells to Construct Stable 3D Cellular Assembly Without Artificial Scaffold
Published on: October 26, 2018
Carbon dot-Au(i)Ag(0) assembly for the construction of an artificial light harvesting system
Jayasmita Jana1, Teresa Aditya, Tarasankar Pal
1Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India. tpal@chem.iitkgp.ernet.in.
Abstract:
Artificial light harvesting systems (LHS) with inorganic counterparts are considered to be robust as well as mechanistically simple, where the system follows the donor-acceptor principle with an unchanged structural pattern. Plasmonic gold or silver nanoparticles are mostly chosen as inorganic counterparts to design artificial LHS. To capitalize on its electron accepting capability, Au(i) has been considered in this work for the synergistic stabilization of a system with intriguingly fluorescing silver(0) clusters produced in situ. Thus a stable fluorescent Au(i)Ag(0) assembly is generated with electron accepting capabilities. On the other hand, carbon dots have evolved as new fluorescent probes due to their unique physicochemical properties. Utilizing the simple electronic behavior of carbon dots, an electronic interaction between the fluorescent Au(i)Ag(0) and a carbon dot has been investigated for the construction of a new artificial light harvesting system. This coinage metal assembly allows surface energy transfer where it acts as an acceptor, while the carbon dot behaves as a good donor. The energy transfer efficiency has been calculated experimentally to be significant (81.3%) and the Au(i)Ag(0)-carbon dot assembly paves the way for efficient artificial LHS.
Related Concept Videos
The Carbon Cycle
Carbon Skeletons
The Dot Product
Dot Product
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...
Dot Product: Problem Solving
Identify the problem: Start by reading the problem and...
Protein Complex Assembly
Many viruses self-assemble into a fully functional unit using the infected host cell to...

