28 research outputs found
Segmentation of Unstructured Newspaper Documents
Document layout analysis is one of the important steps in automated document recognition systems. In Document layout analysis, meaningful information is retrieved from document images by identifying, categorizing and labeling the semantics of text blocks from the document images. In this paper, we present simple top-down approach for document page segmentation. We have tested the proposed method on unstructured documents like newspaper which is having complex structures having no fixed structure. Newspaper also has multiple titles and multiple columns. In the proposed method, white gap area which separates titles, columns of text, line of text and words in lines have been identified to separate document into various segments. The proposed algorithm has been successfully implemented and applied over a large number of Indian newspapers and the results have been evaluated by number of blocks detected and taking their correct ordering information into account
Progress on Thin Film Freezing Technology for Dry Powder Inhalation Formulations
The surface drying process is an important technology in the pharmaceutical, biomedical, and food industries. The final stage of formulation development (i.e., the drying process) faces several challenges, and overall mastering depends on the end step. The advent of new emerging technologies paved the way for commercialization. Thin film freezing (TFF) is a new emerging freeze-drying technique available for various treatment modalities in drug delivery. TFF has now been used for the commercialization of pharmaceuticals, food, and biopharmaceutical products. The present review highlights the fundamentals of TFF along with modulated techniques used for drying pharmaceuticals and biopharmaceuticals. Furthermore, we have covered various therapeutic applications of TFF technology in the development of nanoformulations, dry powder for inhalations and vaccines. TFF holds promise in delivering therapeutics for lung diseases such as fungal infection, bacterial infection, lung dysfunction, and pneumonia
Green synthesis of methoxy-poly(ethylene glycol)- block-poly(L-lactide-co-glycolide) copolymer using zinc proline as a biocompatible initiator for irinotecan delivery to colon cancer in vivo
Poly(lactic-co-glycolic acid) (PLGA) is the most commonly described biocompatible copolymer used in
biomedical applications. In this work, a green synthetic approach based on the biocompatible zinc proline
complex, as an initiator for PLGA synthesis, is reported for the first time for the synthesis of methoxy-poly
(ethylene glycol)-block-poly(L-lactic-co-glycolic acid) (mPEG–PLGA). mPEG–PLGA with controlled
molecular weight and narrow polydispersity was synthesised. Its potential for delivery of irinotecan (Ir), a
poorly water-soluble chemotherapeutic drug used for the treatment of colon and pancreatic cancer, was
studied. Nanoparticles of controlled size (140–160 nm), surface charge (∼−10 mV), release properties and
cytotoxicity against CT-26 (colon) and BxPC-3 (pancreatic) cancer cells, were prepared. Tumor accumulation was confirmed by optical imaging of fluorescently labelled nanoparticles. Unlike Tween® 80
coated NP-Ir, the Pluronic® F-127 coated NP-Ir exhibits significant tumor growth delay compared to
untreated and blank formulation treated groups in the CT-26 subcutaneous tumor model, after 4 treatments of 30 mg irinotecan per kg dose. Overall, this proof-of-concept study demonstrates that the newly
synthesized copolymer, via a green route, is proven to be nontoxic, requires fewer purification steps and
has potential applications in drug deliver
The Effect of Socioeconomic Factors and Indoor Residual Spraying on Malaria in Mangaluru, India: A Case-Control Study
India faces 0.5 million malaria cases annually, including half of all Plasmodium vivax malaria
cases worldwide. This case–control study assessed socioeconomic determinants of urban malaria in
coastal Mangaluru, Karnataka, southwestern India. Between June and December 2015, we recruited
859 malaria patients presenting at the governmental Wenlock Hospital and 2190 asymptomatic
community controls. We assessed clinical, parasitological, and socioeconomic data. Among patients,
p. vivax mono-infection (70.1%) predominated. Most patients were male (93%), adult (median,
27 years), had no or low-level education (70.3%), and 57.1% were daily labourers or construction
workers. In controls (59.3% male; median age, 32 years; no/low-level education, 54.5%; daily
labourers/construction workers, 41.3%), 4.1% showed asymptomatic Plasmodium infection. The
odds of malaria was reduced among those who had completed 10th school grade (aOR, 0.3; 95% CI,
0.26–0.42), lived in a building with a tiled roof (aOR, 0.71; 95% CI, 0.53–0.95), and reported recent
indoor residual spraying (aOR, 0.02; 95% CI, 0.01–0.04). In contrast, migrant status was a risk factor
for malaria (aOR, 2.43; 95% CI, 1.60–3.67). Malaria in Mangaluru is influenced by education, housing
condition, and migration. Indoor residual spraying greatly contributes to reducing malaria in this
community and should be promoted, especially among its marginalised members.Peer Reviewe
Mannose-binding lectin (MBL) as a susceptible host factor influencing Indian visceral Leishmaniasis
Visceral Leishmaniasis (VL), caused by Leishmania donovani is endemic in the Indian sub-continent. Mannose-binding Lectin (MBL) is a complement lectin protein that binds to the surface of Leishmania promastigotes and results in activation of the complement lectin cascade. We utilized samples of 218 VL patients and 215 healthy controls from an Indian population. MBL2 functional variants were genotyped and the circulating MBL serum levels were measured. MBL serum levels were elevated in patients compared to the healthy controls (adjusted P = 0.007). The MBL2 promoter variants − 78C/T and + 4P/Q were significantly associated with relative protection to VL (− 78C/T, OR = 0.7, 95% CI = 0.5–0.96, adjusted P = 0.026 and + 4P/Q, OR = 0.66, 95% CI = 0.48–0.9, adjusted P = 0.012). MBL2*LYQA haplotypes occurred frequently among controls (OR = 0.69, 95% CI = 0.5–0.97, adjusted P = 0.034). MBL recognizes Leishmania and plays a relative role in establishing L. donovani infection and subsequent disease progression. In conclusion, MBL2 functional variants were associated with VL
Progress on Thin Film Freezing Technology for Dry Powder Inhalation Formulations
The surface drying process is an important technology in the pharmaceutical, biomedical, and food industries. The final stage of formulation development (i.e., the drying process) faces several challenges, and overall mastering depends on the end step. The advent of new emerging technologies paved the way for commercialization. Thin film freezing (TFF) is a new emerging freeze-drying technique available for various treatment modalities in drug delivery. TFF has now been used for the commercialization of pharmaceuticals, food, and biopharmaceutical products. The present review highlights the fundamentals of TFF along with modulated techniques used for drying pharmaceuticals and biopharmaceuticals. Furthermore, we have covered various therapeutic applications of TFF technology in the development of nanoformulations, dry powder for inhalations and vaccines. TFF holds promise in delivering therapeutics for lung diseases such as fungal infection, bacterial infection, lung dysfunction, and pneumonia