Upcycling battery waste into Zn-BTC metal organic framework for dual applications in electrochemical sensing of uric acid and antibacterial applications.

This study reports the sustainable synthesis of a zinc-based metal-organic framework (Zn-BTC MOF) using zinc, extracted from waste dry cell batteries. A three-step route involving zinc recovery, hydroxide precipitation, and solvothermal coordination with 1,3,5-benzenetricarboxylic acid (BTC) led to the formation of crystalline Zn-BTC. Comprehensive characterization, utilizing techniques such as XRD, FTIR, Raman, FESEM, TEM, XPS, EDS, and TGA-DSC, confirmed the formation of a highly ordered Zn-BTC MOF framework structure with nanoscale morphology and thermal stability.

Molecular characterization of chromium tolerant and gelatin hydrolyzing bacterial isolates from tannery wastes: Perspective on chrome-tanned leather waste biodegradation in Bangladesh.

Improper management of chrome-tanned leather waste (CTLW) might potentially cause adverse environmental consequences. To mitigate that harmful impact, this study aims to find and conduct molecular characterization of bacteria from tannery wastes that can tolerate chromium (Cr) and hydrolyze gelatin. Bacteria from tannery wastes are naturally adapted to Cr; eight Cr(III) tolerant bacteria, namely bacterial isolate (BI) 1 to 8, were isolated from the collected waste samples.

Screening and genomic evaluation of keratinolytic protease producing Chryseobacterium sp. from tannery waste and its potential application in dehairing of goat skin.

Lime and NaS, used in dehairing in the tannery industry, cause the generation of toxic wastes. Ecological security and financial issues demand a look for innovative approaches to leather dehairing free from pollution. The primary goal of this investigation was to explore keratinolytic protease producing bacteria from tannery waste, their genomic evaluation and to assess their possible use in the dehairing process.

Exploring newly isolated thermotolerant, halotolerant and antimicrobial resistant Bacillus subtilis ProNTL1 from tannery waste and its alkaline protease production.

Background: A hydrolytic enzyme called protease from microbial sources has expansive applications in leather as well as tannery industries and thus leaves no choice but to discover a potential candidate for efficient yield of protease with eccentric characteristics.

Methods And Results: In the current study, using skim milk agar medium, three bacterial strains (Pro SS14, Pro NTL1, Pro SM) were identified for protease production out of thirty tannery waste samples. The bacterial isolates were identified through morphological, biochemical and molecular basis and the highest protease producer (134 U/mL) having the paramount protein content (8.

Aflatoxin M1 detection by ELISA in raw and processed milk in Bangladesh.

An analysis was accomplished to get information regarding presence of highly toxic and carcinogenic aflatoxin M1 (AFM1) in raw and processed samples of milk applying ELISA (enzyme linked immunosorbent assay). Investigation of a set of 100 samples (n=100) taken from different regional small-scale farms as well as grocery stores of Bangladesh containing three groups of milk including raw (n=50), pasteurized (n=25) and UHT (n=25), exhibited in total 53% AFM1 contamination where 70% contamination was found in raw milk ranging from 22.79-1489.