New application of bimetallic Ag/Pt nanoplates in a colorimetric biosensor for specific detection of E. coli in water

• Azam Bagheri Pebdeni,
• Mohammad N. AL-Baiati and
• Morteza Hosseini

Beilstein J. Nanotechnol. 2024, 15, 95–103, doi:10.3762/bjnano.15.9

• , the bacteria–aptamers–Ag/Pt NPL complex displayed a substantially greater color yield (Scheme 1). The aptamer-NPL complex was able to distinguish E. coli from other foodborne pathogens, as evidenced by a significantly different signal. This detection principle was applied to contaminated water, where

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

• Aisha Kanwal,
• Naheed Bibi,
• Sajjad Hyder,
• Arif Muhammad,
• Hao Ren,
• Jiangtao Liu and
• Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

• performance of CDs against foodborne pathogens [101]. Recently, a hydrothermal technique to build effective CDs using ginkgo kernels has been employed [82]. A unique technique was used to evaluate nitrites in corn sausage, ham sausage, preserved Szechuan pickle, and hot dog samples, yielding good results. In

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

• Matías Guerrero Correa,
• Fernanda B. Martínez,
• Cristian Patiño Vidal,
• Camilo Streitt,
• Juan Escrig and
• Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

• of nosocomial infections occurring during hospitalization and food poisoning derived from foodborne pathogens. Antimicrobial agents are necessary in various fields in which biological contamination occurs. For example, in food packaging they are used to control food contamination by microbes, in the

• et al. (2019) used fruit peel waste to synthesize silver nanoparticles with antimicrobial activity against foodborne pathogens [93]. Ibrahim et al. (2015) have also synthesized spherical silver nanoparticles (23.7 nm) by using banana peels. These Ag NPs have exhibited antimicrobial activity against

FTIR nanobiosensors for Escherichia coli detection

• Stefania Mura,
• Gianfranco Greppi,
• Maria Laura Marongiu,
• Pier Paolo Roggero,
• Sandeep P. Ravindranath,
• Lisa J. Mauer,
• Nicoletta Schibeci,
• Francesco Perria,
• Massimo Piccinini,
• Plinio Innocenzi and
• Joseph Irudayaraj

Beilstein J. Nanotechnol. 2012, 3, 485–492, doi:10.3762/bjnano.3.55

• absorption properties monitored. The film-based biosensors showed a detection limit for E. coli of 1 × 102 CFU/mL, constituting a simple and selective method for the effective screening of water samples. Keywords: biosensors; E. coli; FTIR spectroscopy; foodborne pathogens; nanomaterials; Introduction

• particular E. coli is a typical inhabitant of the human intestinal tract; however, the strain E. coli O157:H7, one of the most dangerous foodborne pathogens [4], causes diseases that may lead to death [5]. Sensors to detect these pathogens, especially in ground beef and raw milk [6], are critical. The

• important to prevent and identify problems related to health and safety. Lately, micro- and nanosystems for bacteria and food sample analysis have been developed as innovative tools for the detection of foodborne pathogens in the food and drink industries [14][15][16][17][18][19][20][21]. In particular