Sustainable ultrasonic extraction of antibacterial Basella alba fruit dye for cotton, silk, and leather.

Alternative to synthetic dyes containing harmful compounds, dyes derived from natural sources are gaining popularity due to their safer and eco-friendly nature. This study focuses on extracting red dye from Basella alba fruit and optimising the extraction methods, including ultrasonic bath, ultrasonic probe, and direct heating. The extracted dye was then used for dyeing cotton, silk, and leather without needing a mordant.

Enhanced applications in dentistry through autoclave-assisted sonochemical synthesis of Pb/Ag/Cu trimetallic nanocomposites.

In recent years, researchers have increasingly focused on the development of multiphase trimetallic nanocomposites (TMNC) incorporating ternary metals or metal oxides, which hold significant potential as alternatives for combatting biofilms and bacterial infections. Enhanced oral health is ensured by the innovative techniques used to effectively prevent bacterial adherence and formation of biofilm on dental sutures. In this investigation, TMNC, which consists of Pb, Ag, and Cu, was synthesized using an autoclave-assisted sonochemical technique.

An eco-friendly ultrasound approach to extracting yellow dye from Cassia alata flower petals: Characterization, dyeing, and antibacterial properties.

Using natural dyes in dyeing industries becomes an alternative to synthetic dyes, which are known to contain harmful chemicals that can pose risks to the environment and human health. This study involves the extraction of yellow dye from Cassia alata flower petals, optimization of the extraction process using an ultrasonic bath (40 KHz and an input power of 500), ultrasonic probe (390 W, 455 W, 520 W, 585 W, and 650 W), and conventional heating (heating mantle with 30 °C, 40 °C, 50 °C, 60 °C, and 70 °C), characterization of the dye, as well as dyeing (cotton, silk, and leather) without using a mordant. The extracted yellow dye was further evaluated to determine its antibacterial activity against skin bacteria.

Label-free high frame rate imaging of circulating blood clots using a dual modal ultrasound and photoacoustic system.

Deep vein thrombosis (DVT) is a disorder when a blood clot (thrombus) is formed in one of the deep veins. These clots detach from the original sites and circulate in the blood stream at high velocities. Diagnosing these blood clots at an early stage is necessary to decide the treatment strategy.

Direct and bystander effects in human blood lymphocytes exposed to Am alpha particles and the relative biological effectiveness using chromosomal aberration and micronucleus assay.

It is important to understand the significance of alpha (α) radiation-induced bystander effects (RIBE) and its relative biological effectiveness (RBE); this is because the phenomenon is not universal and the mechanism is unclear and because the RBE is widely varying and projected to be very high. Isolated lymphocytes from healthy volunteers ( = 10) were exposed to either low fluence α-particles (Am), γ-rays (Co), or X-rays (225 kVp and 6 MV). Co-culture methodology was employed to investigate bystander effects (BEs).

On-chip generation of microbubbles in photoacoustic contrast agents for dual modal ultrasound/photoacoustic in vivo animal imaging.

Dual-modal photoacoustic (PA) and ultrasound (US) contrast agents are becoming increasingly popular in recent years. Here, a flow-focusing junction based microfluidic device is used for the generation of nitrogen microbubbles (<7 μm) in two photoacoustic contrast agents: methylene blue (MB) and black ink (BI). The microbubble diameter and production rate could be precisely controlled in both MB and BI solutions.

Hand-held, clinical dual mode ultrasound - photoacoustic imaging of rat urinary bladder and its applications.

Urinary bladder imaging is critical to diagnose urinary tract disorders, and bladder cancer. There is a great need for safe, non-invasive, and sensitive imaging technique which enables bladder imaging. Photoacoustic imaging is a rapidly growing imaging technique for various biological applications.

Study of Radon and Thoron exhalation from soil samples of different grain sizes.

The exhalation of radon (Rn) and thoron (Rn) from a porous matrix depends on the emanation of them from the grains by the recoil effect. The emanation factor is a quantitative estimate of the emanation phenomenon. The present study is to investigate the effect of grain size of the soil matrix on the emanation factor.

Hand-held Clinical Photoacoustic Imaging System for Real-time Non-invasive Small Animal Imaging.

Translation of photoacoustic imaging into the clinic is a major challenge. Handheld real-time clinical photoacoustic imaging systems are very rare. Here, we report a combined photoacoustic and clinical ultrasound imaging system by integrating an ultrasound probe with light delivery for small animal imaging.

A REVIEW ON VARIATION OF NATURAL RADIOACTIVITY ALONG THE SOUTHEAST COAST OF TAMIL NADU FOR THE PAST 4 DECADES (1974-2016).

This review deals with natural radioactivity variation along the southeast coast of Tamil Nadu for the past four decades (1974-2016). About 40 research works have been conducted along the coast since 1974 in various environmental matrices using a variety of experimental methods. For these measurements researchers are adopted different experimental methods.

Comparison of dicentric dose response curves of 6MV LINAC X-rays and Co γ-rays for biodosimetry application.

In vitro Dicentric (DC) dose response curves of 6MV X-rays (3Gy/min) and Co γ-rays (0.63Gy/min) were generated and compared (intra-laboratory) to understand their similarities and differences. Human peripheral blood samples exposed to ten different doses (0, 0.

Non-invasive sentinel lymph node mapping and needle guidance using clinical handheld photoacoustic imaging system in small animal.

Translating photoacoustic imaging (PAI) into clinical setup is a challenge. Handheld clinical real-time PAI systems are not common. In this work, we report an integrated photoacoustic (PA) and clinical ultrasound imaging system by combining light delivery with the ultrasound probe for sentinel lymph node imaging and needle guidance in small animal.

Nucleoplasmic bridges as a biomarker of DNA damage exposed to radon.

Radon is a naturally occurring radionuclide in the environment, during decay it emits high linear energy transfer (LET) alpha particles. When radon exposure is accompanied by smoking it has been reported that lung cancer risk is higher. Blood samples were collected after prior consent, 25 smokers and 25 non smokers (only males) exposed in vitro to radon gas with doses ranging between 0.

Optimizing light delivery through fiber bundle in photoacoustic imaging with clinical ultrasound system: Monte Carlo simulation and experimental validation.

Translating photoacoustic (PA) imaging into clinical setup is a challenge. We report an integrated PA and ultrasound imaging system by combining the light delivery to the tissue with the ultrasound probe. First, Monte Carlo simulations were run to study the variation in absorbance within tissue for different angles of illumination, fiber-to-probe distance (FPD), and fiber-to-tissue distance (FTD).

Near-infrared light-responsive liposomal contrast agent for photoacoustic imaging and drug release applications.

Photoacoustic imaging has become an emerging tool for theranostic applications. Not only does it help in View Article and Find Full Text PDF

High prevalence and infestation of (Isopoda, Cymothoidae) in marine fish (Bleeker 1850).

Cymothoid isopods are parasites that cause severe damage to the fish species. The present study was focused to carry out the parasitic infestation on the one of the important marine fish during the 2 years period between June 2009 and May 2011. 272 fish specimens collected and about 157 (57.

Occurrence, morphology and molecular characterisation of Bopyrid parasite Nobili, 1906 (Isopoda: Bopyridae).

occurs most commonly in Southeast Coast of India parasitized the penaeid shrimp. The present study provides the prevalence, morphological and molecular characterisation of collected from the host In the present study highlights the significance of high prevalence and genetic diversity of in . Intra specific analysis also revealed that species detected in the present study can be easily distinguished from the other genospecies of bopyrids.

High frame rate photoacoustic imaging at 7000 frames per second using clinical ultrasound system.

Photoacoustic tomography, a hybrid imaging modality combining optical and ultrasound imaging, is gaining attention in the field of medical imaging. Typically, a Q-switched Nd:YAG laser is used to excite the tissue and generate photoacoustic signals. But, such photoacoustic imaging systems are difficult to translate into clinical applications owing to their high cost, bulky size often requiring an optical table to house such lasers.

Unusual attachment of Nerocila exocoeti in Hemiramphus far (Forsskal, 1775) from Parangipettai south east coast of India.

A female Nerocila exocoeti was found attached on the head region of the halfbeak fish Hemiramphus far reported for the first time from Parangipettai south east coast of India. This was abnormal position to all known cymothoids attached on the surface of host fishes. This isopod naturally occurs in the fish belongs to Exocoetidae.

Recent developments in vascular imaging techniques in tissue engineering and regenerative medicine.

Adequate vascularisation is key in determining the clinical outcome of stem cells and engineered tissue in regenerative medicine. Numerous imaging modalities have been developed and used for the visualization of vascularisation in tissue engineering. In this review, we briefly discuss the very recent advances aiming at high performance imaging of vasculature.

Dicentric assay: inter-laboratory comparison in Indian laboratories for routine and triage applications.

An Inter-Laboratory Comparison (ILC) study on Dicentric Chromosome Assay (DCA) was carried out between two Indian biodosimetry labs. Human peripheral blood samples exposed to 10 different doses of X-rays up to 5Gy were shared between the labs to generate calibration data. Validation of calibration curves was done by dose estimation of coded samples exposed to X- or gamma radiation.

A new record of parasitic isopod for the Indian fauna (Mothocya karobran Bruce, 1986) from Strongylura strongylura in the Pazhayar region, Southeast coast of India.

Cymothoid isopods are permanent ectoparasites of fish. In the present study Strongylura strongylura captured in gillnets from the inshore waters of Pazhayar from January to March-12. Among the 122 Belonidae fishes examined, 16 specimens were parasitized by isopods belonging to the species Mothocya karobran, a new record of this cymothoid isopod for the first time from India.

New occurrence of parasitic isopods from Indian fishes.

Until now, 36 species belonging to the family Cymothoidae (Crustacea, Isopoda) were recorded from Indian fishes. In this study, ten additional cymothoids are reported in India, most of them for the first time. They parasitize nine fish species, several of them being new host species.

Adsorption of uranium from aqueous solution by PAMAM dendron functionalized styrene divinylbenzene.

A new polymeric chelating resin was prepared by growing third generation poly(amido)amine (PAMAMG3) dendron on the surface of styrene divinylbenzene (SDB) and characterized by FTIR, TGA and SEM. The ideal branching of dendron in the chelating resin was determined from potentiometric titration. Adsorption of uranium (VI) from aqueous solution using PAMAMG3-SDB chelating resin was studied in a series of batch experiments.

Case series study of the clinical profile of H1N1 swine flu influenza.

Objectives: To study the clinical profile of the H1N1 influenza cases attending government hospitals in South India and to study the impact of H1N1 infection on pregnancy outcome.

Materials And Methods: A total number of 442 H1N1 positive patients (198 inpatients and 244 outpatients) from two government hospitals in Chennai, Madras Medical College & Government General Hospital and Institute of Child Health, Egmore were studied retrospectively during a period of 6 months from August 2009 to January 2010.

Results: The rate of reported cases and hospitalization rates was highest among individuals aged 5 to 24 years.