Package Research Articles

Dewatering and drying of Kombucha Bacterial Cellulose for preparation of biodegradable film for food packaging

Kombucha Bacterial Cellulose (KBC), obtained from waste products of kombucha fermentation, has potential applications in diverse fields. The present study used tea waste as a raw material for producing kombucha-like beverages and bacterial cellulose (BC). The in-situ dewatering and drying operations were performed to remove the high-water content from fermented KBC. Herein, the performance of BC in pressure-driven separation has been investigated as a function of dewatering pressure, drying temperature, and drying time in a multifunctional filtration cell. The Central Composite Design (CCD) was used to optimize the dewatering and drying parameters. The optimum conditions were found to be 4 bar pressure, 99 °C drying temperature, and 5 min drying time with a desirability value of 0.921. The predicted response values agreed with actual responses within 2.3–2.7 %. The dried films were prepared at optimized conditions and used to investigate thickness, density, mechanical properties, Fourier transform infrared, and scanning electron microscopy. The properties of KBC film varied as fermentation days increased. The KBC films' transparency decreased as thickness and density increased. The KBC film exhibits excellent mechanical properties such as tensile strength, maximum load, extension at the break, load at the break, and Young's modulus. The KBC films have been reported to be biodegradable and non-toxic and may be used for food packaging. Moreover, the present study successfully demonstrated that KBC packaging material could extend the shelf life of tomatoes by 13–15 days under accelerated conditions.

Creation of Composite Aerogels Consisting of Activated Carbon and Nanocellulose Blended with Cross-Linked Biopolymers: Application as Ethylene Scavengers

This study involved producing aerogels using activated carbon (AC) and nanocellulose (NC). Two distinct structured composites, AC composite aerogel (ACCA) and NC composite aerogel (NCCA), were developed by separately mixing AC and NC with identical proportions of cross-linked biopolymers: hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), and chitosan (C). These aerogels were evaluated for their capability to adsorb ethylene gas through batch experiments, while the physical and chemical characteristics were thoroughly examined to determine their feasibility of removing ethylene. The resulting ACCA and NCCA aerogels exhibited low densities of 0.094 g cm−3 and 0.077 g cm−3, respectively, coupled with high porosity ranging between 95 and 96%. During the ethylene adsorption test, NCCA exhibited superior ethylene removal rates (~14.88–16.77 mL kg−1) compared to ACCA (~13.57–14.97 mL kg−1). Specifically, NCCA achieved a removal efficiency of 83.86% compared to 74.64% for ACCA. Kinetic model fitting yielded high R2 values ranging from 0.97 to 0.98 with the Lagergren kinetic model. These findings suggest the potential of composite aerogels to be incorporated into food packaging materials for dynamic ethylene capture, independent of environmental conditions, thereby providing promising routes for further development.

Recent Progress in Nanomaterial-Based Surface-Enhanced Raman Spectroscopy for Food Safety Detection

Food safety has recently become a widespread concern among consumers. Surface-enhanced Raman scattering (SERS) is a rapidly developing novel spectroscopic analysis technique with high sensitivity, an ability to provide molecular fingerprint spectra, and resistance to photobleaching, offering broad application prospects in rapid trace detection. With the interdisciplinary development of nanomaterials and biotechnology, the detection performance of SERS biosensors has improved significantly. This review describes the advantages of nanomaterial-based SERS detection technology and SERS’s latest applications in the detection of biological and chemical contaminants, the identification of foodborne pathogens, the authentication and quality control of food, and the safety assessment of food packaging materials. Finally, the challenges and prospects of constructing and applying nanomaterial-based SERS sensing platforms in the field of food safety detection are discussed with the aim of early detection and ultimate control of foodborne diseases.

Green Synthesis, Characterization and Pharmaceutical Applications of Biocompatible Zinc Oxide Nanoparticles Using Heliotropium rariflorum Stocks

Background: Zinc oxide nanoparticles are safe, non-toxic, and biocompatible. These NPs are used in food packaging materials, self-cleaning glass, ceramics, deodorants, sunscreens, paints, coatings, ointments, lotions, and as preservatives. This study explored the biological potential of ZnO nanoparticles synthesized using H. rariflorum. Methods: In vitro antibacterial and antifungal activities against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi, Candida albicans, Penicillium notatum, Aspergillus flavus, Aspergillus niger and Aspergillus solani were determined. Antioxidant activity was explored using the DPPH radical scavenging method. In vivo analgesic, antipyretic and sedative potential of synthesized nanoparticles was investigated using a mouse model. Results: SEM with various magnification powers showed that some particles were spherical while some were aggregated, flake-shaped, and hexagonal with rough and irregular surfaces. The EDX analysis revealed Zn (12.63%), O (22.83%) and C (63.11%) with trace quantities of Si (0.40%), Ca (0.54%) and P (0.49%). The XRD pattern indicated an amorphous state, with no peaks observed throughout the spectrum. The UV–visible spectrophotometry revealed a characteristic absorption peak at 375 nm, indicating the presence of ZnO nanoparticles. Fourier Transform Infrared Spectroscopy (FTIR) displayed several small peaks between 1793 and 2370 cm−1, providing evidence of the presence of different kinds of organic compounds with different functional groups. ZnO-NPs showed dose-dependent antibacterial and antifungal potential against all strains. Staphylococcus aureus and Candida albicans were the most susceptible strains. The nanoparticles exhibited a maximum antioxidant effect of 85.28% at 100 μg/mL. In this study, the acute toxicity test showed no mortality, and normal behavior was observed in mice at ZnO-NP doses of 5, 10, and 20 mg/kg. For analgesic and antipyretic activities, a two-way ANOVA revealed that dose, time, and the interaction between dose and time were significant. In contrast, the samples had a non-significant effect on sedative activity. Conclusions: This innovative study suggests a potential use of plant resources for managing microbes and treating various diseases, providing a scientific basis for the traditional use of H. rariflorum.

Exploring the role of packaging in the formation of brand images: a mixed methods investigation of consumer perspectives

Purpose This study aims to explore consumers’ perspectives on how packaging plays a role in their consumption experience and how it contributes to the formation of brand images. By adopting a consumer’s perspective, the authors identify the criteria that consumers apply to evaluate packaging and reveal how packaging relates to consumers’ overall brand associations. Design/methodology/approach Through a sequential exploratory mixed methods design, the authors explore brand packaging of chocolate bars as emotionally laden, well-known fast-moving consumer goods. First, the authors conduct a qualitative focus group study to explore how consumers perceive package design, and how it relates to their brand impressions. Second, the authors test the constructs and attributes with an independent sample through a quantitative survey. Findings The qualitative findings reveal the different roles of packaging and highlight how packaging provides value for consumer experiences not only at the point-of-sale but also during later consumption. More specifically, the authors identify 12 main criteria that consumers use to evaluate packaging. The authors unwrap how packaging is embedded in consumers’ brand image networks by mapping out its connections to other brand associations pertaining to product attributes, the brand itself and personality impressions. The quantitative findings confirm the importance of practical and symbolic packaging criteria and the brand image comparisons. Originality/value Taking a consumer’s perspective, this study contributes to a more holistic understanding of how packaging supports brand building as we reveal the various ways in which packaging relates to consumers’ overall brand image associations. This study further directs attention to the roles that consumers themselves assign to packaging and how they evaluate packaging based on its practical, symbolic and social value.

Comparative Analysis and Study of Visual Elements of Organic Sanitary Pad Package Design - Focusing on Organic Sanitary Pad Brands in Korea and China -

Comparative Analysis and Study of Visual Elements of Organic Sanitary Pad Package Design - Focusing on Organic Sanitary Pad Brands in Korea and China -

Household Level Determinants of Wheat Packages Adoption in Tigray Region, Northern Ethiopia

Wheat has been considered as one of the strategic food security crops in Ethiopia. A number of research efforts have been done by different research institutions to improve the production and productivity of the crop and as a result a number of wheat production packages has been released and promoted all across the country, including Tigray. Yet, in Tigray, there is no adequate evidence on the adoption status of wheat packages and their determinant factors. Hence, this adoption study was initiated with the objective to analyze the status of wheat packages adoption, and determinant factors for further adoption. A multistage sampling technique was employed to select 493 households from five wheat growing districts of the region. Data were collected through the administration of semi-structured questionnaires and analyzed using both descriptive statistics and Multivariate Probit (MVP) model. The descriptive results described that, the average wheat packages adoption status was 67%, of these only 17% of farmers adopted all five packages. The result of MVP model revealed that sex, age, livestock size, extension services, average plot distance, off-farm income source, farmer perception on his status and credit access were the determinant factors which facilitate/and/or hinder wheat packages adoption in Tigray. Thus, the policy and development interventions should focus on improving institutional support and wealth creation opportunities to improve production and productivity of wheat producer farmers in Tigray.

Content and design of respectful maternity care training packages for health workers in sub-Saharan Africa: Scoping review.

Training health workers might facilitate respectful maternity care (RMC); however, the content and design of RMC training remain unclear. To explore the content and design of RMC training packages for health workers in sub-Saharan Africa. MEDLINE, EMBASE, CINAHL Complete, Web of Science Core Collections, SCOPUS, and grey literature sources (including websites of RMC-focused key organizations and Ministries of Health) were searched for journal papers, reports, and training guides from January 2006 up to August 2022. There were no restrictions on study designs, language, or health-worker cadre. Two reviewers independently screened results. Key data, including training content and methods used, were extracted and summarized. Thirty-two citations from 26 studies/programs were identified (24 journal papers, 5 manuals/guides, 2 reports and 1 PhD thesis), with 27 citations from 22 studies informing the review findings. About half of all conducted studies were from East Africa. The most common topics in RMC trainings were communication, privacy and confidentiality, and human resources. Most trainings were multicomponent and appear to be largely in-service training. Health workers providing direct care to women, compared with non-clinical staff such as receptionists and cleaners, were the only recipients of training in most studies (81.8%). Two broad categories of training methods/tools were identified: workshop-based and action-based. Over 90% of the studies assessed impact of the training, with a majority focused on impacts on maternal health and care; however, half of the latter studies did not appear to have feedback mechanisms in place for implementing change. The content and design of RMC training in sub-Saharan Africa are multifaceted, suggesting the complexity of implementing/promoting RMC. Some progress has been made; however, missed opportunities in training remain with respect to study populations, training topics, cadres, and feedback mechanisms.

Insights into the seasonal variation, distribution, composition and dynamics of microplastics in the Ganga River ecosystem of Varanasi City, Uttar Pradesh, India.

The current study explores the seasonal dynamics of microplastic (MP) pollution in the Ganga River of Varanasi City, Uttar Pradesh, India, focusing on water and sediment samples collected during pre-monsoon and post-monsoon periods. The analysis shows significant variations in MP occurrence, shape dynamics, color distribution, and size composition across diverse sampling sites. During the pre-monsoon season, MP concentrations ranged from 17 to 36 particles/L in water samples and 160 to 312 particles/kg in sediment, indicating a moderate to high level of contamination. Post-monsoon sampling showed higher MP concentrations at most sites, indicating the influence of seasonal hydrological changes on MP distribution. Shifts in MP shape dynamics were observed between seasons, with films, foams, fragments, and filaments showing variable distributions. Similarly, color variations in MPs exhibited site-specific patterns, with white, brown, blue, and other colors being predominant. These findings highlight the diverse sources and compositions of MPs in the river ecosystem, highlighting the complexity of MP pollution dynamics. Polymer-type distributions further elucidated the composition of MPs, with notable contributions from polyethylene terephthalate, rayon, polyester, and polyvinyl chloride. PCA analysis revealed significant shifts in particle size and shape distribution between pre-monsoon and post-monsoon periods in both water and sediment samples, with post-monsoon samples showing an increase in larger particles and filaments. These changes highlighted key factors driving the variance in microplastic contamination across different sites. The prevalence of these polymers features diverse sources of MP pollution, including textiles, packaging materials, and industrial waste. Ongoing monitoring and research are crucial to understanding its sources, distribution, and impact on river ecosystems, essential for protecting aquatic biodiversity and human health.

Processing and Properties of Polyhydroxyalkanoate/ZnO Nanocomposites: A Review of Their Potential as Sustainable Packaging Materials

The escalating environmental concerns associated with conventional plastic packaging have accelerated the development of sustainable alternatives, making food packaging a focus area for innovation. Bioplastics, particularly polyhydroxyalkanoates (PHAs), have emerged as potential candidates due to their biobased origin, biodegradability, and biocompatibility. PHAs stand out for their good mechanical and medium gas permeability properties, making them promising materials for food packaging applications. In parallel, zinc oxide (ZnO) nanoparticles (NPs) have gained attention for their antimicrobial properties and ability to enhance the mechanical and barrier properties of (bio)polymers. This review aims to provide a comprehensive introduction to the research on PHA/ZnO nanocomposites. It starts with the importance and current challenges of food packaging, followed by a discussion on the opportunities of bioplastics and PHAs. Next, the synthesis, properties, and application areas of ZnO NPs are discussed to introduce their potential use in (bio)plastic food packaging. Early research on PHA/ZnO nanocomposites has focused on solvent-assisted production methods, whereas novel technologies can offer additional possibilities with regard to industrial upscaling, safer or cheaper processing, or more specific incorporation of ZnO NPs in the matrix or on the surface of PHA films or fibers. Here, the use of solvent casting, melt processing, electrospinning, centrifugal fiber spinning, miniemulsion encapsulation, and ultrasonic spray coating to produce PHA/ZnO nanocomposites is explained. Finally, an overview is given of the reported effects of ZnO NP incorporation on thermal, mechanical, gas barrier, UV barrier, and antimicrobial properties in ZnO nanocomposites based on poly(3-hydroxybutyrate), poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate). We conclude that the functionality of PHA materials can be improved by optimizing the ZnO incorporation process and the complex interplay between intrinsic ZnO NP properties, dispersion quality, matrix–filler interactions, and crystallinity. Further research regarding the antimicrobial efficiency and potential migration of ZnO NPs in food (simulants) and the End-of-Life will determine the market potential of PHA/ZnO nanocomposites as active packaging material.

Performance analysis of biodegradable composite using polyvinyl alcohol and pomegranate peel powder for sustainable dry packaging applications

This study focuses on the fabrication of a biodegradable dry packaging material for fruits, vegetables, and flowers, with an emphasis on affordability for street vendors. Approximately 55% of waste originates from packaging materials. To address this issue, a biodegradable Polyvinyl alcohol/Pomegranate peel powder (PVA/PPP) composite film was fabricated. The PVA, a water-soluble synthetic biodegradable polymer, served as the matrix, while PPP, an agro-waste product, was used as the filler. The PVA/PPP films were characterized through optical microscopy, FTIR, XRD, TGA, DSC, moisture absorption analysis, water vapour transmission rate (WVTR), water vapour permeability (WVP), and oxygen permeability testing. The inclusion of PPP enhanced the film’s properties via increasing moisture absorption by 85%, reducing PVA crystallinity index from 33.2 to 17.5%, percentage crystallinity reduced from 73.90 to 0.57%, lowering WVTR from 0.063 to 0.042 g/h.m2, low oxygen permeability and improving thermal stability up to 423 °C. Additionally, the pH of PPP (4.5) contributed to microbial resistance. The fabricated PVA/PPP films were fully biodegradable and produced via green synthesis without any hazardous chemicals. The use of PPP as a filler not only improved film performance but also reduced environmental hazard, demonstrating the material’s suitability for sustainable packaging applications.

Magnetic Triggering of Functional Organosilica Filler Particles for Controlling the Thermoreversible Attachment to Polymer Matrices.

Polymer materials containing filler particles are widely used in automotive components, construction materials, packaging materials, medical devices and supplies, and much more. The fillers strongly modulate the properties of the composite. In some applications, one is interested in smart features of those composites, meaning one can post-synthetically and reversibly change the characteristics as a response to an easy-to-apply trigger. For example, if the excision of an implant material may become necessary, then the polymer-filler hybrid changing from mechanically robust to soft(er) would be very beneficial. Here, we present a proof-of-concept study that shows that stimuli-responsive polymer-filler composites can be achieved by functional organosilica nanoparticles. The nanoparticles comprise a superparamagnetic core surrounded by a mesoporous organosilica shell. The polymer matrix is attached to the filler via Diels-Alder coupling to maleimide groups present at the surface of the organosilica. Exposure to an alternating magnetic field generates local heat in the organosilica particles. Utilizing fluorescence probes bound to the polymer backbone's side chains, we could prove that detachment occurs via a retro-Diels-Alder reaction within minutes.

NFC Tag Awareness and Its Visual Implementation on Food Packaging: Case Study in Slovenia

Many companies are using smart packaging to provide consumers with more information about their products. The goal of our case study is to access the Near Field Communication (NFC) tag knowledge, as well as getting insights into tag positioning in food package design for better visibility in order to develop some guidelines for future tag implementations. A preliminary survey of professionals provided an overview of NFC tag usage, followed by an online survey that assessed knowledge and visibility of tag placements. These findings were further discussed in focus groups and measured using eye-tracking technology. For placement visibility assessments, well-known and fictitious packaging designs of milk were used. The results show that, due to the NFC tag’s low market penetration, consumer recognition is low, with only generations Y and Z being familiar with the NFC tag. Knowledge of the NFC tag does not significantly vary based on education level. When considering the use of NFC tags, it is crucial to define and understand the target market. If the target is younger generations, the potential to increase engagement with the product can be achieved. Additionally, to boost consumer interaction, NFC tags or other smart elements should include an activation prompt, positioned on the central right section of the packaging and distinguished by a distinct color. The influence of the design on tag visibility is essential to ensure its effectiveness.

Mooncake Packaging Design in the Context of Ageing under the Perspective of Humanistic Care

As a traditional food of the Chinese nation, the custom of eating mooncakes and enjoying the moon at the Mid-Autumn Festival has penetrated into every household. With the rapid development of the commodity economy, the special characteristics of the elderly group make their consumption habits and lifestyles quite different from those of contemporary young people. Therefore, this paper studies the packaging design of aging mooncakes from the perspective of humanistic care, taking aging users as the target group of the article's research, and mooncake packaging design as the object of research, and analysing the physiological characteristics and psychological characteristics of aging users.

Synthesis, characterization, and evaluation of antibacterial properties of silver/ carboxymethyl cellulose/ bacterial cellulose/ Clitoria ternatea extract aerogel composites

Food packaging for meat, processed food, and fresh food is often equipped with adsorbent pads to regulate moisture. However, most adsorbents are derived from synthetic polymer materials. There has been increasing demand for functional packaging materials that are not only durable, cost-effective, and well-designed, but also capable of extending the product shelf-life. Butterfly pea (Clitoria ternatea L.) flowers and silver nanoparticles have been reported to exhibit antibacterial activity in several studies. This study aimed to synthesize novel aerogel composites made of carboxymethyl cellulose (CMC), bacterial cellulose (BC), and C. ternatea flower extracts as adsorbent material in food packaging. BC was used as a reinforcing agent. The composites were synthesized by reacting silver solution and carboxymethyl cellulose, and then adding bacterial cellulose and C. ternatea extracts. Three different ratios of C. ternatea extract i.e. 0.5 %, 1 % and 2 % were used in this study (AT1, AT2, AT3). These aerogel composites were tested against four pathogenic bacteria i.e. Staphylococcus aureus, Eschericia coli, Pseudomonas aeruginosa, and Salmonella Typhimurium using disk diffusion and microdilution methods. The aerogel composites were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray fluorescence (XRF), Fourier-transform infrared (FTIR) spectroscopy, and color analysis. The results showed that AT3 had good antibacterial activity against P. aeruginosa, S. Typhimurium, and S. aureus with inhibition zones of 10.14 mm, 11.63 mm, and 7.69 mm, respectively, while composite AT2 had good inhibition against E. coli with the value of 9.82 mm. Equipped with good antibacterial activity, these aerogel composites have excellent potential to be used as adsorbent pads in food packaging to prolong the food shelf-life.

Sausage Preservation Using Films Composed of Chitosan and a Pickering Emulsion of Essential Oils Stabilized with Waste-Jujube-Kernel-Derived Cellulose Nanocrystals

The purpose of this study was to prepare Pickering emulsions stabilized by waste jujube kernel cellulose nanocrystals (CNC) using composite essential oils (EOs) (i.e., cinnamon essential oil [CIN] combined with clove essential oil [CL]). The Pickering emulsions were blended with chitosan (CS) to generate a composite film (CS/CNC/EOs Pickering emulsions). We evaluated the mechanical properties, barrier properties, and microstructures of CS/CNC/EOs bio-based packaging films containing different concentrations of EOs. In addition, the fresh-keeping effects of the composite membranes on beef sausages were evaluated over a 12-day storage period. Notably, the EOs exhibited good compatibility with CS. With the increase in the EOs concentration, the droplet size increased, the composite films became thicker, the elongation at break decreased, the tensile strength increased, and the water vapor permeability decreased. When the composite films were used for preserving beef sausages, the antioxidant and antibacterial activity of the membranes improved as the concentration of EOs increased, effectively prolonging the shelf life of the sausages. Composite membranes with an EOs concentration of 2% exerted the best fresh-keeping effects. Overall, owing to their antioxidant and antimicrobial properties, the bio-based composite films prepared using CS/CNC/EOs Pickering emulsions demonstrated immense potential for application in the packaging of meat products.

Poly(vinyl alcohol)-based multifunctional smart packaging films with carbon dots-loaded metal-organic frameworks for freshness indicator and shelf-life extension of shrimp

This study aims to fabricate poly(vinyl alcohol)-based films (PVA-based films) incorporated with carbon dots-loaded metal-organic frameworks (CD@MOF) for freshness indicator and shelf life extension of shrimp. Incorporation of CD@MOF to PVA-based composite films (PVA/CD@MOF) showed excellent antimicrobial and antioxidant activities with 77.44 % ABTS radical scavenging efficiency. Additionally, the composite films showed a superior UV-barrier of 99.48 % compared to 23.28 % for neat PVA film. The color of PVA/CD@MOF composite films changed from green to blue when exposed to ammonia. In shrimp freshness monitoring tests, the color of PVA/CD@MOF composite films turned brown simultaneously with changes in the chemical parameters of shrimp, providing a visual indication of changes in the quality of stored shrimp. Additionally, PVA/CD@MOF films effectively inhibited weight loss, pH increase, microbial growth, and oxidation of stored shrimp. These results imply that CD@MOF can serve effectively as a dual-purpose active and indicator additive in practical packaging materials.

PENERAPAN INOVASI DIGITAL PEMASARAN UNTUK PENINGKATAN OMZET PEMBERDAYAAN EKONOMI RUMAH TANGGA PKK KELURAHAN RAGUNAN

The background of this Community Service activity is that PKM partners of PKK cadres in Ragunan Village have several limitations in terms of identity, packaging and product marketing. For product identity, there is no logo (label) for packaging, so the product that has been made is less known. In addition, there is no safe packaging design for the delivery of business products sold. So far, sales have only been carried out through event bazaars around Ragunan village so that there is a lack of marketing networks. Limited sales range, and the target market is not wide and diverse, revenue or sales turnover does not increase. The purpose of this PKM activity is to expand market reach, build strong product appeal, increase sales turnover and increase economic independence. The method for this PKM activity is to provide socialization and training regarding new product logos for the packaging production process on packaging labels, packaging design for shipping packaging, socializing the e-commerce application that has been made to PKK cadres of Ragunan Village. Providing training in using e-commerce platforms to market their products. The targeted output is to create an online sales application (e-commerce) to be able to market the business products of PKK cadres in Ragunan Village widely. This community service reached the main conclusion that digital marketing strategies effectively help the economic empowerment of PKK cadres' households and this strategy shows positive results in increasing their economic independence and income.

Cigar-Specific Health Warnings: Attention, Recall, and Perceived Effectiveness Among Young Adult Users and Non-Users

Limited research has examined attention to these cigar-specific health warnings and their perceived effectiveness among young people. The objective of our study was to evaluate the attention to and perceptions of a set of cigar-specific health warnings among young adult tobacco users and non-users. Methods: Young adults ages 18–24 in Columbus, Ohio, were recruited into an eye-tracking experiment examining cigarillo packaging between May 2022 and February 2023. Participants (n = 124) were shown 12 unique, branded cigarillo packages featuring a rotation of four of the Food and Drug Administration’s mandated health warnings: (1) Cigar smoking can cause lung cancer and heart disease (“disease”); (2) tobacco smoke increases the risk of lung cancer and heart disease, even in nonsmokers (“nonsmokers”); (3) cigar smoking can cause cancers of the mouth and throat, even if you do not inhale (“inhale”); and (4) cigars are not a safe alternative to cigarettes (“alternative”). Software captured visual attention to each product package, including the health warning. Participants also ranked the most effective message to motivate people to quit; one week later, the participants (n = 118) self-reported unaided recall of the experiment. Results: Study participants were an average of 21.2 years old, 54.2% were female, 73.7% were White, 65.3% had some college education, and 26.3% reported tobacco use in the previous month. The health warning, “Cigar smoking can cause cancers of the mouth and throat, even if you do not inhale” was ranked the most effective cigar warning (41.5%) and drew the greatest proportion of visual attention (26.1%). More than half (52.5%) recalled details regarding the health warning messages one week following the experiment, with few recalling (17.7%) specific warning message themes. Conclusions: Understanding the best performing health warnings is a crucial strategy to share accurate information on the risks of tobacco use. Our findings suggest that the warning on cancer risk even without inhaling drew the greatest visual attention and highest rating of perceived effectiveness among this sample of young adult cigarillo users and non-users.

Design and Optimization of a Fan-Out Wafer-Level Packaging- Based Integrated Passive Device Structure for FMCW Radar Applications

This paper presents an integrated passive device (IPD) structure based on fan-out wafer-level packaging (FOWLP) for the front end of frequency-modulated continuous wave (FMCW) radar systems, focusing on enhancing the integration efficiency and performance of large passive components like antennas. Additionally, a new metric is introduced to assess this structure’s effect on the average noise figure in FMCW systems. Using this metric as a loss function, we apply the support vector machine (SVM) for electromagnetic simulation and the genetic algorithm (GA) for optimization. The sample fitting variance is 2.42 dB, reducing computation time from 12 min to under 1 millisecond, with the entire optimization completed in less than 100 s. The optimized IPD structure is 0.7 × 0.9 × 0.014 λ03 in size and achieves over 35 dB isolation between the transmitter and receiver. Compared to the IPD model calculated by empirical formulas, the optimized device lowers the average noise figure by 15.2 dB and increases maximum gain by 4.19 dB.