A two-dimensional fingerprint nanoprobe based on black phosphorus for bio-SERS analysis and chemo-photothermal therapy.

Nanoscale

MOE Key Laboratory of Laser Life Science & SATCM Third Grade Laboratory of Chinese Medicine and Photonics Technology, College of Biophotonics, South China Normal University, Guangzhou, Guangdong 510631, P. R. China.

Published: October 2018


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Flake-shaped nanohybrids based on black phosphorus (BP) have been developed as multifunctional theranostic nanoplatforms for drug delivery, phototherapy and bioimaging. In this work, we report a facile strategy for fabrication of black phosphorus-Au nanoparticle hybrids (BP-AuNPs), which reveal an extraordinary near-infrared (NIR) photothermal transduction efficiency and drug delivery capacity. The applications of the nanocomposites as therapeutic agents for high-performance chemo-photothermal tumor therapy are accomplished in vitro and in vivo. BP-AuNPs also exhibit wonderful surface-enhanced Raman scattering (SERS) activity under NIR laser excitation with a low Raman background, allowing BP-AuNPs to be used as a promising two-dimensional (2D) fingerprint nanoprobe for bio-SERS analysis. The cellular component identification and label-free live-cell bioimaging based on this type of 2D SERS substrate are generally investigated, which open up promising new perspectives in nanomedicine, including diagnosis, imaging and therapy.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234316PMC
http://dx.doi.org/10.1039/c8nr05300fDOI Listing

Publication Analysis

Top Keywords

two-dimensional fingerprint
8
fingerprint nanoprobe
8
based black
8
black phosphorus
8
bio-sers analysis
8
drug delivery
8
nanoprobe based
4
phosphorus bio-sers
4
analysis chemo-photothermal
4
chemo-photothermal therapy
4

Similar Publications

Nontargeted Screening of Fingermark Residue Using Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry for Future Use in Forensic Applications.

J Am Soc Mass Spectrom

September 2025

Nontargeted Separations Laboratory, Chemistry Department, William & Mary, Integrated Science Center 1053, 540 Landrum Drive, Williamsburg, Virginia 23188, United States.

Fingerprints are routinely used as evidence in forensic investigations. Fingermarks, any mark left by a donor whether a complete print or not, include sweat and oil excreted by the donor. The chemical components of fingermarks are typically analyzed by gas chromatography-mass spectrometry (GC-MS).

View Article and Find Full Text PDF

The conformation of the title mol-ecule, CHClNO, is maintained by intra-molecular N-H⋯O, C-H⋯O, and C-H⋯Cl inter-actions, creating (6), (5), and (6) motifs, respectively. In the crystal, inter-molecular N-H⋯O, C-H⋯O, and C-H⋯Cl inter-actions connect the mol-ecules, forming a three-dimensional network. Additionally, the mol-ecules are linked by C-H⋯π inter-actions, forming layers parallel to the (002) plane.

View Article and Find Full Text PDF

The unit cell of the title compound, [Ni(CHNO)]·2CHOH, consists of a neutral complex and two methanol mol-ecules. In the complex, the two tridentate 2-[3-(benzo[][1,3]dioxol-5-yl)-1-1,2,4-triazol-5-yl]-6-(1-pyrazol-1-yl)pyridine ligands coordinate to the central Ni ion through nitro-gen atoms of the pyrazole, pyridine and triazole groups, forming a pseudo-octa-hedral coordination sphere. Neighbouring mol-ecules are linked through weak C-H(pz)⋯π(ph) inter-actions into monoperiodic chains, which are further linked through weak C-H⋯H/N/C inter-actions into diperiodic layers.

View Article and Find Full Text PDF

Conventional one-dimensional gas chromatography methods for gasoline quality monitoring require separate analyses for different component classes, limiting analytical efficiency and unconventional additive detection. This study presents a comprehensive two-dimensional gas chromatography with flame ionization detection (GC × GC-FID) platform enabling simultaneous quantification of regulated components and rapid screening of unconventional additives in a single analytical run. The method achieved excellent agreement with ASTM standards and high repeatability for BTEX (benzene, toluene, ethylbenzene, and xylenes) and oxygenates in gasoline.

View Article and Find Full Text PDF

This study compared two nontargeted analytical techniques-headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) and comprehensive two-dimensional gas chromatography-mass spectrometry (GC × GC-MS)-to fingerprint the volatile organic compounds (VOCs) of green beans from Ethiopia, Brazil, Nicaragua, and Guatemala. HS-GC-IMS enabled rapid differentiation of samples, detecting VOC signal regions that effectively clustered samples by origin with minimal preparation. GC × GC-MS offered higher chemical resolution, identifying 98 compounds, including methoxypyrazines, aldehydes, and alcohols, which significantly contributed to interorigin variability.

View Article and Find Full Text PDF