Results 41 to 50 of about 360,977 (263)

Coulomb attraction driven spontaneous molecule-hotspot pairing enables universal, fast, and large-scale uniform single-molecule Raman spectroscopy

Opto-Electronic Advances
Raman spectroscopy offers a great power to detect, analyze and identify molecules, and monitor their temporal dynamics and evolution when combined with single-molecule surface-enhanced Raman scattering (SM-SERS) substrates.
Lihong Hong, Haiyao Yang, Jianzhi Zhang, Zihan Gao, Zhi-Yuan Li   +4 more
doaj   +1 more source

Chemical Contribution to Surface-Enhanced Raman Scattering [PDF]

Physical Review Letters, 2006
We present a new mechanism for the chemical contribution to surface-enhanced Raman scattering (SERS). The theory considers the modulation of the polarizability of a metal nanocluster or a flat metal surface by the vibrational motion of an adsorbed molecule.
Persson, B. N. J., Zhao, K., Zhang, Z. Y.   +2 more
openaire   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Beyond Plasmonics: Atomic‐Scale SERS Platforms for Plasmon‐Free Photocatalysis Monitoring via Charge Transfer Mechanisms

Advanced Sensor Research
Surface‐enhanced Raman scattering (SERS) leveraging single‐atom or small‐cluster systems represents an emerging frontier in molecular sensing and catalytic monitoring.
Ruinan Wang, Yunjia Wei, Guoqun Li, Shuying Chen, Jie Lin, Qi Hao, Xingce Fan, Teng Qiu   +7 more
doaj   +1 more source

Surface Enhanced Raman Spectroscopy(SERS) of TMPyP on Ag Nanoparticles. [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2017
This work was aimed to study the role of interaction between silver nanoparticles, TMPyP and Graphen Oxide(GO) on surface enhanced Raman scattering (SERS) signals. Silver nanoparticles(AgNPs) prepared by chemical reduction of AgNO3.
Nasrin N. Jmail, Qassim M.J. AbdulAziz, J.H Rice   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Lip print enhancement: review

Forensic Sciences Research, 2020
Lip print (LP) evidence can be an essential tool for human forensics. LPs have conventionally been developed using substances such as lysochrome dyes, fluorescent dyes, indigo dye, aluminium powder, and silver metallic powder.
Maxwell Abedi, Constance Afoakwah, Dan Nana Osei Mensah Bonsu   +2 more
doaj   +1 more source

Recovery of latent fingermarks from burial environments

Egyptian Journal of Forensic Sciences, 2020
Background Fingermarks can be found both in indoor and outdoor crime scenes. The latter could be subjected to various types of environmental insults. In many cases, criminals try to dispose of or conceal the evidence in several ways, such as throwing in ...
Yam Tze Yong, Yusmazura Zakaria, Nik Fakhuruddin Nik Hassan   +2 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source