Oncogenic microRNAs (miRNAs) are frequently upregulated in various cancers, including prostate cancer (PCa), and have been implicated in promoting tumor growth, invasion, and metastasis. Here, we developed an electrochemical biosensor for detecting miRNA-141, a key PCa biomarker, using gold nanoparticles (AuNPs) decorated laser-induced graphene …
WhatsApp: +86 18221755073
This work reports a sensing strategy through the electrical conductivity of gold nanoparticles (AuNPs). By modulating the concentration, aggregation, and surface ligand of AuNPs, a versatile analytical platform for highly sensitive detection based on the electrical conductivity is outlined.
WhatsApp: +86 18221755073
The development of reliable biosensing platforms plays a key role in the detection of proteins in clinically and environmentally derived samples for diagnostics, as well as for process monitoring in biotechnological productions. …
WhatsApp: +86 18221755073
This technique is capable of detecting very small gold nanoparticles with diameters as small as 1.4 nm, with a high signal-to-noise ratio (SNR) 24, or even single absorbing molecules 2. Unlike the ...
WhatsApp: +86 18221755073
Early detection of specific oral bacterial species would enable timely treatment and prevention of certain oral diseases. In this work, we investigated the sensitivity and specificity of functionalized gold nanoparticles for plasmonic sensing of oral bacteria. This approach is based on the aggregation of pos
WhatsApp: +86 18221755073
Environmentally benign methods for gold recovery and detection are highly desirable for a sustainable future. Herein, we demonstrate a selective recovery and detection strategy of gold with cucurbit[n]urils (Q[n = 5-7]) by means of outer-surface interactions.Tetrachloroaurate anion ([AuCl 4]-) is able to be rapidly precipitated with Q[n] in …
WhatsApp: +86 18221755073
The electronic waste gold contents vary from 80 to more than 800 parts-per-million (ppm), and silver contents range from 250–350 ppm; no gold or silver is observed in …
WhatsApp: +86 18221755073
Does detecting minute quantities of gold equate the recovery of the same traces? You can detect gold in sea water, but it isn't economical to recover it. Kim Holder August 13, 2013 12:22 PM.
WhatsApp: +86 18221755073
Live Gold Charts and Gold Spot Price from International Gold Markets, Prices from New York, London, Hong Kong and Sydney provided by Kitco.
WhatsApp: +86 18221755073
Gold Detection in Airports So… Now you know that airport scanners are highly advanced in most countries and can effectively detect gold and other metallic objects. Attempting to deceive or hide prohibited items, including undeclared gold, can lead to …
WhatsApp: +86 18221755073
Abstract Conventional detection methods for Listeria monocytogenes contamination in food are time-consuming and expensive, creating a need for a more inexpensive and efficient detection method. The objective of this study was to develop an inexpensive biosensor to detect L. monocytogenes in food samples. Screen-printed carbon electrode …
WhatsApp: +86 18221755073
It is difficult to detect artificially in view of the small defect size of electronic components in industrial environment, this paper proposed a defect detection method of electronic components based on improved YOLOX algorithm. Firstly, a new Spatial Pyramid Pooling structure is used in the feature extraction part, in which Maxpool is replaced by Softpool to retain more feature …
WhatsApp: +86 18221755073
Here, we report on a reliable, ultrasensitive, and easy-to-use sensor for the electrochemical detection of acetaminophen. This sensor employs a gold wire electrode with a unique three-dimensional hierachical nanoporous structure, fabricated using a dissolution, disproportion and deposition procedure.
WhatsApp: +86 18221755073
High performance sequence-specific DNA detection methods have been in high demand due to their broad applications in early stages diagnosis of genetic diseases [1], [2], virus [3], [4], drug screening [5], [6], food analysis [7] and environmental monitoring [8].Significant progress has been made for a better understanding of the electrochemical properties of DNA …
WhatsApp: +86 18221755073
Object Detection from real world scenario is a subset of Computer Vision, that uses state-of-the-art algorithms and techniques in deep learning to identify and locate the objects in an image or video. Latest advancements in Deep Learning, especially Convolutional Neural Networks (CNN) and in the field of image processing has further improved the process of object detection. …
WhatsApp: +86 18221755073
Tips for detecting gold with a metal detector. If you want to use a metal detector to try and find gold, here are a few tips to help you increase your chances of success: Choose the right metal detector. As mentioned above, PI metal detectors are generally more sensitive to gold than VLF metal detectors. However, VLF detectors may be a better ...
WhatsApp: +86 18221755073
Herein, we designed a simple and ultrasensitive sandwich-type electrochemical immunosensor for the detection of CRP in human serum samples. Gold (Au) nanowires grown on PC substrate were used as an efficient biosensor platform for anchoring anti-CRP antibody (anti-CRP) to detect CRP which enhances the electrochemical signal of the immunosensor.
WhatsApp: +86 18221755073
Today's analysts have access to a range of elemental analytical techniques including fl ame and graphite furnace atomic absorption spectroscopy (AA), inductively …
WhatsApp: +86 18221755073
Silver ranks as the most electrically conductive element; however, copper and gold are more frequently utilized in electrical applications due to their cost-effectiveness and superior corrosion resistance, respectively. Factors such as cross-sectional area, length of the conductor, and temperature significantly influence the conductivity or ...
WhatsApp: +86 18221755073
We present an ultrasensitive colorimetric nucleic acid assay based on the intensity of gold nanoparticles (Au NPs) using dark field microscopy. In the absence of target DNA, two hairpin-like DNA strands with protruding single-stranded DNA (ssDNA) can be absorbed onto the Au NP surface via non-covalent intera
WhatsApp: +86 18221755073
The present adsorbent delivers a gold adsorption capacity of 954 mg g−1, excellent selectivity and reusability, and can rapidly and selectively extract ultra-trace gold …
WhatsApp: +86 18221755073
The model 5500 E1 metal detector is engineered to be the most sensitive detector on the market for installation on conveyor belts carrying coal, minerals, aggregates and other bulk materials. …
WhatsApp: +86 18221755073
How do Electronic Gold Receipts (EGRs) work? EGRs are a way of getting people to not hoard gold physically by creating an exchange that provides transparent pricing and liquidity (to cash or back to gold). BSE said the buyer could convert the physical gold into an EGR by depositing the yellow metal at the designated delivery centre.
WhatsApp: +86 18221755073
At present, testing methods for gold content in gold jewelry are mainly fire assaying method, X ray fluorescence(XRF) and inductively coupled plasma-atomic emission spectrometry(ICP-AES). When there are disagreements in the testing results, fire assaying method is the arbitral method. In this paper, the gold contents of 14K, 18K and 22K gold samples were determined by the …
WhatsApp: +86 18221755073
First, polyaniline–graphene oxide (GO–PANI) nanocomposites were prepared by the in situ polymerization of aniline in the presence of graphene oxide (GO). Next, the GO–PANI nanocomposites were reduced to polyaniline–graphene (G–PANI) nanocomposites by a green electrochemical reduction method. Finally, a thin layer o
WhatsApp: +86 18221755073
We developed a simple, non-enzymatic approach for the colorimetric detection of glucose based on a gold nanoparticles (Au NPs) assisted silver mirror reaction (AuSMR). The linear range of the concentration of glucose is from 0.04 mM to 1 mM, and the lowest concentration that can be distinguished by …
WhatsApp: +86 18221755073
In this work, we implement and experimentally investigate the capabilities of object-detection methods in a real-time system to count moving electronic components on a …
WhatsApp: +86 18221755073
Frequency: 6 frequencies choices with a range from 4 kHz to 40 kHz Benefits: . Affordable Mid-Range: The Equinox 900 strikes a good mix between price and performance, making it a good choice for gold prospectors who want to step up their game.; Advanced Discrimination: It has improved filtering settings that make it easier to find gold while reducing …
WhatsApp: +86 18221755073
Glutamate, a non-essential amino acid produced by fermentation, plays a significant role in disease diagnosis and food safety. It is important to enable the real-time monitoring of glutamate concentration for human health and nutrition. Due to the challenges in directly performing electrochemical ox …
WhatsApp: +86 18221755073
Excitation transfer between nitrogen–vacancy centres and graphene can be used to detect the spin of the electron in the nitrogen–vacancy centre through electrical measurements. Non-radiative ...
WhatsApp: +86 18221755073
0086-21-58386256
Our office time Mon - Sat 10.00AM - 7.00PM Sunday CLOSED
Copyright © 2024.Con All rights reserved.sitemap